CN213012250U

CN213012250U - Water purifier and control valve for water purifier

Info

Publication number: CN213012250U
Application number: CN202021362426.9U
Authority: CN
Inventors: 胡继宗; 胡霄宗; 褚振麟
Original assignee: Yuyao Yadong Plastic Co ltd
Current assignee: Yuyao Yadong Plastic Co ltd
Priority date: 2019-07-18
Filing date: 2020-07-10
Publication date: 2021-04-20
Anticipated expiration: 2030-07-10
Also published as: CN212334800U; CN212770103U; CN112239279A; CN112239277B; CN213202550U; CN212403691U; CN212356761U; CN213865619U; CN213202549U; CN212334799U; CN212334801U; CN212770102U; CN212609864U; CN213865620U; CN112239278A; CN212770104U; CN212334798U; CN212559675U; CN212356762U; CN212425649U

Abstract

The utility model provides a water purifier and be used for control valve of water purifier, wherein the utility model discloses the water purifier includes a control valve that is used for controlling rivers to flow and a filter equipment that is used for purifying the raw water, and wherein this filter equipment includes a shell and a filter core, and wherein this shell forms a first chamber that holds, and wherein this filter core is set up in this first intracavity that holds of this shell, and wherein this shell and this filter core form one and are located raw water passageway between the two, and this filter core has a water purification export.

Description

Water purifier and control valve for water purifier

Technical Field

The utility model relates to a water purifier especially relates to a controllable water purifier of flow size. The utility model discloses still further relate to a control valve for water purifier.

Background

In recent ten years, the living standard of people is obviously improved. Accordingly, people pay more attention to living health. For example, people have increasingly high quality requirements for domestic water. However, in many countries, especially in developing countries such as China, Vietnam, India, etc., the problem of water pollution is becoming more and more serious with the continuous development of industry and agriculture. In these countries, the pollution of water sources, especially domestic water sources, is often increasing. In addition, the quality of tap water is affected by the external environment and water supply pipelines. For example, the water source of tap water has too high a sand content, which also causes the quality of tap water to deteriorate. In addition, in developing countries, due to reasons such as economic cost, the quality of a tap water supply pipe network is poor, the pipe network is lack of cleaning for a long time, and the pipe network is aged, so that the quality of tap water is also influenced. Thus, tap water is not directly drinkable in many countries. In order to solve the above problems of the tap water, various household water purification apparatuses, such as an ultrafiltration water purifier, an RO membrane water purifier, a faucet water purifier, and the like, have appeared on the market to purify the tap water. Among these water purification units, faucet water purifiers are popular with many consumers because of their advantages of small size, convenient assembly and disassembly, and the ability to automatically purify tap water under tap water pressure without the need of electric power. However, the existing faucet water purifier also has a plurality of defects. For example, the existing faucet water purifier lacks a control mechanism, and the water yield of the faucet water purifier cannot be controlled by the faucet water purifier. In addition, most of the existing faucet water purifiers are lack of a filter element flushing mechanism, and the filter element of the faucet water purifier is easy to block after purifying raw water (or tap water) for a period of time.

SUMMERY OF THE UTILITY MODEL

The utility model has the main advantage of providing a water purifier, wherein the utility model discloses water purifier is suitable for the setting at the water pipe, just the utility model discloses the control valve of water purifier can control the raw water (or the running water) flow size of the filter equipment of this water purifier of flow direction. Further, the utility model discloses the control valve of water purifier can realize right the utility model discloses the stepless control of the flow of water purifier to satisfy user's different water demand or different user's water demand.

The utility model discloses a water purifier, wherein the utility model discloses the control valve of water purifier can cut off the raw water to the utility model discloses the filter equipment's of water purifier flow, thereby avoid the utility model discloses the filter equipment of water purifier receives the effect that comes from the water hammer of raw water (for example, running water) always to improve the life of this water purifier.

Another advantage of the present invention is to provide a water purifier, wherein the control valve of the water purifier can control (e.g., tap water) to perform backwashing on the filter element to improve the service life of the filter element of the water purifier.

Another advantage of the present invention is to provide a water purifier, wherein the water purifier has a filter element that generates purified water and a back-flushing device that generates sewage that flows out through different water outlets, thereby preventing the sewage generated by the filter element from polluting the purified water outlet. In other words, the utility model discloses the passageway that the sewage that the filter core of water purifier generated flowed through is totally independent of the passageway of flowing through of the purification water that the filter core generated.

Another advantage of the present invention is to provide a water purifier, wherein the water purifier can be integrated with a faucet for use. In other words, the water purifier of the present invention can be connected to the tap water pipe. Further, the water purifier and the water tap can be respectively communicated with a tap water pipe, so that the water tap, the water purifier and the tap water pipe form a three-way structure.

Another advantage of the present invention is to provide a control valve for a water purifier, wherein the utility model is used for the control valve of the water purifier can control the water purifier to provide the purified water generated by the filter element and control the raw water to carry out the back washing to the filter element.

Other objects and features of the present invention will become more fully apparent from the following detailed description and appended claims, taken in conjunction with the accompanying drawings, wherein like reference numerals refer to like parts throughout.

According to the utility model discloses an aspect, can realize aforementioned purpose and other purposes and advantage the utility model discloses the water purifier includes:

a control valve for controlling the flow of water; and

a filter equipment for purifying raw water, wherein this filter equipment includes a shell and a filter core, and wherein this shell forms a first chamber that holds, and wherein this filter core is set up in this first intracavity that holds of this shell, and wherein this shell and this filter core form one and lie in the raw water passageway between the two, and this filter core has a water purification export.

According to the utility model discloses an on the other hand, the utility model discloses a control valve for water purifier is further provided, it includes:

a valve body; and

a valve core, wherein the valve body forms a valve cavity, a first opening, a second opening, a third opening, a raw water inlet and a sewage discharge opening, wherein the valve core is arranged in the valve cavity, wherein the raw water inlet of the valve body is suitable for being communicated with a raw water source, and when the control valve is positioned at a filtering working position, the valve core of the control valve forms a first communication channel respectively communicated with the first opening and the raw water inlet of the valve body and a second communication channel respectively communicated with the second opening and the third opening of the valve body.

Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the appended claims.

Drawings

Fig. 1A is a front view of a water purifier according to an embodiment of the present invention.

Fig. 1B is an assembly view of the water purifier according to the embodiment of the present invention.

Fig. 1C is a cross-sectional view of the water purifier according to the embodiment of the present invention.

Fig. 1D is another cross-sectional view of the water purifier according to the embodiment of the present invention.

Fig. 2A is an assembly view of the control valve of the water purifier according to the embodiment of the present invention.

Fig. 2B is an assembly view of the filter assembly of the water purifier according to the embodiment of the present invention.

Fig. 3A is a front view of the filter device of the water purifier according to the embodiment of the present invention.

Fig. 3B is a cross-sectional view of the filter device of the water purifier according to the embodiment of the present invention.

Fig. 3C is another sectional view of the filter unit of the water purifier according to the embodiment of the present invention, wherein the brush of the filter unit is shown.

Fig. 3D is a perspective view of the filter element of the filter device of the water purifier according to the embodiment of the present invention.

Fig. 4A is a perspective view of the base of the filter device of the water purifier according to the embodiment of the present invention.

Fig. 4B is a cross-sectional view of the base of the filter unit of the water purifier according to the embodiment of the present invention.

Fig. 5A is a perspective view of the planar valve of the water purifier according to the embodiment of the present invention, wherein the view shows the first channel, the second channel, the third channel and the fourth channel of the planar valve.

Fig. 5B is another perspective view of the planar valve of the water purifier according to the embodiment of the present invention, wherein the view shows the first channel, the second channel, the third channel, the fourth channel and the second sealing member of the planar valve.

Fig. 5C is another perspective view of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows the first opening, the second opening, and the third opening of the valve body.

Fig. 5D is another perspective view of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows the raw water inlet of the valve body.

Fig. 5E is another perspective view of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows the third opening of the valve body.

Fig. 5F is another perspective view of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows the drain opening of the valve body.

Fig. 5G is a top view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 5H is a bottom view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 5I is a front view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 5J is a side view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 5K is another side view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 6A is a cross-sectional view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows that the first passage of the flat valve communicates with the first opening.

Fig. 6B is a cross-sectional view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows that the second passage of the flat valve communicates with the second opening.

Fig. 6C is a cross-sectional view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows that the third channel and the third opening of the flat valve are communicated with each other.

Fig. 6D is a sectional view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows that the fourth channel of the flat valve communicates with the drain opening.

Fig. 6E is a sectional view of the valve body of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows that the raw water inlet of the flat valve is communicated with the valve chamber.

Fig. 7A is a sectional view of the flat valve of the water purifier according to the embodiment of the present invention, wherein the fixing means is provided in the valve chamber of the flat valve.

Fig. 7B is the above-mentioned perspective view according to this valve body of this plane valve of water purifier of the utility model embodiment, wherein the utility model discloses the guide plate of water purifier is set up at this valve body of this plane valve.

Fig. 7C is the above-mentioned perspective view according to this valve body of this plane valve of water purifier of the utility model embodiment, wherein the utility model discloses the sealing washer of water purifier is set up at this valve body of this plane valve.

Fig. 7D is a perspective view of the above-mentioned deflector of the water purifier according to the embodiment of the present invention.

Fig. 7E is another perspective view of the above-mentioned deflector of the water purifier according to the embodiment of the present invention.

Fig. 7F is a perspective view of the gasket of the water purifier according to the embodiment of the present invention.

Fig. 8A is a perspective view of the fixing device of the water purifier according to the embodiment of the present invention.

Fig. 8B is a cross-sectional view of the fixing device of the water purifier according to the embodiment of the present invention.

Fig. 8C is a perspective view of the fixing portion of the fixing plate of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows the first sealing groove of the fixing portion.

Fig. 8D is another perspective view of the fixing portion of the fixing plate of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows the second sealing groove of the fixing portion.

Fig. 8E shows the fixing portion and the high end portion of the fixed valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the high end portion of the fixed valve plate is disposed at the fixing portion.

Fig. 8F is a perspective view of the first sealing member of the sealing assembly of the water purifier according to the embodiment of the present invention.

Fig. 8G is a perspective view of the second sealing member of the sealing assembly of the water purifier according to the embodiment of the present invention.

Fig. 8H is a perspective view of the fixing bracket of the fixing device of the water purifier according to the embodiment of the present invention, wherein the view shows the limiting groove of the fixing bracket.

Fig. 9A is a perspective view of the stationary plate of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 9B is a top view of the stationary plate of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 9C is a bottom view of the stationary plate of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 9D is a perspective view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 9E is a top view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 9F is a bottom view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 10A is a schematic structural view of the water purifier according to the embodiment of the present invention, wherein the water purifier is shown in a filtering position, and an arrow indicates a water flow direction.

Fig. 10B is a schematic structural view of the water purifier according to the embodiment of the present invention, wherein the water purifier is shown in a backwashing operation position, and an arrow in the drawing indicates a water flow direction.

Fig. 10C is a schematic structural diagram of the water purifier according to the embodiment of the present invention, wherein the water purifier shown in the figure is in a standby operating position.

Fig. 11A is a schematic structural diagram of the fixed valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 11B is a schematic structural diagram of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the broken line in the diagram shows the conducting channel of the movable valve plate.

Fig. 11C is an isometric view of the stationary plate of the planar valve of a water purifier according to an embodiment of the present invention, wherein the view shows that each channel is disposed at a specific isometric position of the stationary plate.

Fig. 11D is an isometric view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the view shows that each channel is disposed at a specific isometric position of the movable valve plate.

Fig. 12A is a schematic view of the above-mentioned communication between the channel of the movable valve plate and the channel of the fixed valve plate when the planar valve of the water purifier is completely switched to the filtering position according to the embodiment of the present invention, wherein the hatched portion in the figure shows the mutually communicated channels of the movable valve plate and the fixed valve plate of the planar valve.

Fig. 12B is the aforesaid according to the utility model discloses when this plane valve of water purifier switches to this filtration position from this standby work position or switches to this standby work position from this filtration work position, at the switching-over in-process, the intercommunication sketch map between the passageway of this movable valve piece of this plane valve and the passageway of this fixed valve piece, wherein the shadow part in this figure shows the passageway of the mutual intercommunication of this movable valve piece and this fixed valve piece of this plane valve.

Fig. 12C is a schematic view of the above-mentioned communication between the channel of the movable valve plate and the channel of the fixed valve plate of the planar valve when the planar valve of the water purifier is completely switched to the backwashing operation position according to the embodiment of the present invention, wherein the hatched portion in the figure shows the mutually communicated channels of the movable valve plate and the fixed valve plate of the planar valve.

Fig. 12D is a schematic view of the above-mentioned communication between the channel of the movable valve plate and the channel of the fixed valve plate of the planar valve when the planar valve of the water purifier according to the embodiment of the present invention is in the standby position, wherein the hatched portion in the figure shows the mutually communicated channels of the movable valve plate and the fixed valve plate of the planar valve.

Fig. 13 is an assembly view of an alternative embodiment of the control valve of the water purifier according to the embodiment of the present invention.

Fig. 14A is a perspective view of the alternative implementation of the planar valve of the water purifier according to the embodiment of the present invention, wherein the view shows the first channel, the second channel, the third channel, the fourth channel and the raw water inlet channel of the planar valve.

Fig. 14B is another perspective view of the alternative implementation of the planar valve of the water purifier according to the embodiment of the present invention, wherein the view shows the first channel, the second channel, the third channel, the fourth channel, the raw water inlet channel and the second sealing member of the planar valve.

Fig. 14C is another perspective view of the alternative implementation of the planar valve of a water purifier according to an embodiment of the present invention, as described above, showing the first opening, the second opening, and the third opening of the valve body.

Fig. 14D is another perspective view of the alternative implementation of the planar valve of the water purifier according to the embodiment of the present invention, wherein the view shows the raw water inlet of the valve body.

Fig. 14E is another perspective view of the alternative implementation of the planar valve of the water purifier according to the embodiment of the present invention, wherein the view shows the third opening of the valve body.

Fig. 14F is another perspective view of the alternative implementation of the planar valve of a water purifier according to an embodiment of the present invention, as described above, showing the blowdown opening of the valve body.

Fig. 14G is a top view of the valve body of the alternative implementation of the planar valve of a water purifier according to an embodiment of the present invention.

Fig. 14H is a bottom view of the valve body of the alternative embodiment of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 14I is a front view of the valve body of the alternative implementation of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 14J is a side view of the valve body of the alternative implementation of the planar valve of a water purifier according to an embodiment of the present invention described above.

Fig. 14K is another side view of the valve body of the alternative implementation of the planar valve of a water purifier according to an embodiment of the present invention described above.

Fig. 15A is a cross-sectional view of the valve body of the alternative implementation of the planar valve of a water purifier according to an embodiment of the present invention, as described above, wherein the figure shows the first passage and the first opening of the planar valve in communication.

Fig. 15B is a cross-sectional view of the valve body of the alternative implementation of the planar valve of a water purifier according to an embodiment of the present invention, as described above, wherein the figure shows the second passage and the second opening of the planar valve communicating with each other.

Fig. 15C is a cross-sectional view of the valve body of the alternative implementation of the planar valve of a water purifier according to an embodiment of the present invention, wherein the figure shows that the third channel and the third opening of the planar valve are in communication.

Fig. 15D is a cross-sectional view of the valve body of the alternative implementation of the planar valve of a water purifier according to an embodiment of the present invention, as described above, wherein the figure shows the fourth channel of the planar valve in communication with the drain opening.

Fig. 15E is a sectional view of the valve body of the alternative embodiment of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows that the raw water inlet of the flat valve is communicated with the raw water inlet passage.

Fig. 16A is a cross-sectional view of the alternative implementation of the planar valve of the water purifier according to the embodiment of the present invention, wherein the fixing device is disposed in the valve chamber of the planar valve.

Fig. 16B is a perspective view of the valve body of the optional implementation of the planar valve of the water purifier according to the embodiment of the present invention, wherein the flow guide plate of the water purifier is disposed on the valve body of the planar valve.

Fig. 16C is a perspective view of the valve body of the alternative embodiment of the planar valve of the water purifier according to the present invention, wherein the sealing gasket of the water purifier is disposed on the valve body of the planar valve.

Fig. 16D is a perspective view of the deflector of the water purifier according to the embodiment of the present invention.

Fig. 16E is another perspective view of the deflector of the water purifier according to the embodiment of the present invention.

Fig. 16F is a perspective view of the gasket of the water purifier according to the embodiment of the present invention.

Fig. 17A is a perspective view of the fixing device of the alternative embodiment of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 17B is a cross-sectional view of the fixing device of the alternative embodiment of the flat valve of the water purifier according to the embodiment of the present invention.

Fig. 17C is a perspective view of the fixing portion of the fixed valve plate of the optional embodiment of the planar valve of the water purifier according to the present invention, wherein the view shows the first sealing groove of the fixing portion.

Fig. 17D is another perspective view of the fixing portion of the fixed valve plate of the optional embodiment of the planar valve of the water purifier according to the present invention, wherein the view shows the second sealing groove of the fixing portion.

Fig. 17E illustrates the fixing portion and the high end portion of the fixed valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the high end portion of the fixed valve plate is disposed on the fixing portion.

Fig. 17F is a perspective view of the first sealing member of the sealing assembly of the alternative embodiment of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 17G is a perspective view of the second sealing member of the sealing assembly of the alternative embodiment of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 17H is a perspective view of the fixing bracket of the fixing device of the alternative embodiment of the flat valve of the water purifier according to the embodiment of the present invention, wherein the view shows the limiting groove of the fixing bracket.

Fig. 18A is a perspective view of the stationary valve plate of the alternative embodiment of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 18B is a top view of the stationary valve plate of the alternative embodiment of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 18C is a bottom view of the stationary valve plate of the alternative embodiment of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 18D is a perspective view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 18E is a top view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 18F is a bottom view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 19A is a schematic view of the alternative embodiment of the planar valve of the water purifier according to the present invention, wherein the water purifier is shown in a filtering position, and the arrows are in the direction of water flow.

Fig. 19B is a schematic view of the alternative embodiment of the planar valve of the water purifier according to the present invention, wherein the water purifier is shown in a back-flushing position, and the arrows are shown in the figure as the water flow direction.

Fig. 19C is a schematic structural diagram of the alternative implementation of the planar valve of the water purifier according to the embodiment of the present invention, wherein the water purifier shown in the figure is in a standby operating position.

Fig. 20A is a schematic structural diagram of the fixed valve plate of the optional implementation of the planar valve of the water purifier according to the embodiment of the present invention.

Fig. 20B is a schematic structural diagram of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the broken line in the diagram shows the conducting channel of the movable valve plate.

Fig. 20C is an isometric view of the stationary plate of the alternative embodiment of the planar valve of a water purifier according to the present invention, wherein the view shows that each channel is disposed at a specific isometric position of the stationary plate.

Fig. 20D is an isometric view of the movable valve plate of the alternative embodiment of the planar valve of a water purifier according to the present invention, wherein the view shows that each channel is disposed at a specific isometric position of the movable valve plate.

Fig. 21A is a schematic view of the above-mentioned communication between the channel of the movable valve plate and the channel of the fixed valve plate of the planar valve when the planar valve of the water purifier is completely switched to the filtering position according to the present invention, wherein the hatched portion in the figure shows the mutually communicated channels of the movable valve plate and the fixed valve plate of the planar valve.

Fig. 21B is the aforesaid according to the utility model discloses when this optional implementation of this plane valve of water purifier switches to this filtration position or switches to this standby position from this filtration position, at the switching-over in-process, the intercommunication sketch map between the passageway of this movable valve piece of this plane valve and the passageway of this fixed valve piece, wherein the shaded portion in this figure shows the passageway that communicates each other of this movable valve piece and this fixed valve piece of this plane valve.

Fig. 21C is a schematic view of the above-mentioned communication between the channel of the movable valve plate and the channel of the fixed valve plate of the planar valve when the planar valve of the water purifier is completely switched to the back-washing operation position according to the embodiment of the present invention, wherein the hatched portion in the figure shows the mutually communicated channels of the movable valve plate and the fixed valve plate of the planar valve.

Fig. 21D is a schematic view of the above-mentioned communication between the channel of the movable valve plate and the channel of the fixed valve plate of the planar valve when the planar valve of the water purifier according to the embodiment of the present invention is in the standby position, wherein the hatched portion in the figure shows the mutually communicated channels of the movable valve plate and the fixed valve plate of the planar valve.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

It is to be understood that the terms "a" and "an" are to be interpreted as meaning "at least one" or "one or more," i.e., that a single element may be present in one embodiment, while a plurality of elements may be present in other embodiments, and that the terms "a" and "an" are not to be interpreted as limiting the number.

Referring to fig. 1A to 21D of the drawings, a water purifier according to an embodiment of the present invention is illustrated, wherein the water purifier 2 includes a control valve 10 for controlling flow of water and a filtering device 20 for purifying raw water, wherein the control valve 10 is disposed between a tap water pipe 3 and the filtering device 20. It is understood that the control valve 10 is provided to control the flow of water, such as to control the supply of raw water (or tap water) to the filter device 20 and to control the supply of purified water generated or produced by the treatment of raw water by the filter device 20. Further, the control valve 10 is configured to control the flow rate of the raw water flowing to the filter device 20 of the water purifier 2 to meet different water demands of users or different water demands of users.

It should be noted that the water purifier 2 of the present invention is configured to be used with a faucet, such as the faucet 1 shown in fig. 1A to 1D. At this moment, the utility model discloses water purifier 2 can be in the same place with this tap 1 is integrated mutually. Therefore, the faucet 1 may be regarded as a part or a component of the water purifier 2.

As shown in fig. 1A, 2B to 4B of the drawings, the filter device 20 of the water purifier 2 according to the embodiment of the present invention includes a housing 21 and a filter element 22, wherein the housing 21 forms a first accommodating chamber 210, the filter element 22 is disposed in the first accommodating chamber 210 of the housing 21, the housing 21 and the filter element 22 form a raw water passage 2101 therebetween, and the filter element 22 has a purified water outlet 2201. Accordingly, when the raw water flows in from the raw water passage 2101 and is treated by the filter element 22 by the water pressure, the produced purified water flows out from the purified water outlet 2201 of the filter element 22. Therefore, the raw water passage 2101 is positioned at one side of the filter cartridge 22, and the purified water outlet 2201 is formed at an opposite side. Preferably, the filter element 22 may be an ultrafiltration filter element. More preferably, the filter element 22 is a ceramic filter element. It is to be understood that the filter element can also be a filter element made of other materials, or a composite filter element made of multiple materials, for example, a composite filter element made of any two or more materials of ceramic, carbon fiber, PP cotton, and activated carbon particles.

As shown in fig. 1A and 2B to 4B of the drawings, the filter device 20 of the water purifier 2 according to the embodiment of the present invention has a first communicating opening 201 and a second communicating opening 202, wherein the first communicating opening 201 of the filter device 20 is communicated with the raw water channel 2101 of the filter device 20, so that the control valve 10 can provide raw water to the filter device 20 through the first communicating opening 201, and the second communicating opening 202 of the filter device 20 is communicated with the purified water outlet 2201 of the filter element 22, so that the purified water generated by the filter element 22 can flow out through the second communicating opening 202, and is provided to a user through a first water outlet 100 of the water purifier 2 under the control of the control valve 10. In other words, the purified water produced by the filter element 22 of the filter device 20 of the water purifier 2 flows to the second communication opening 202 of the filter device 20 under the action of the water pressure.

As shown in fig. 1A, 2B to 4B of the drawings, correspondingly, when the filter device 20 of the water purifier 2 according to the embodiment of the present invention is used for treating raw water, a user can control the raw water to flow to the first communication opening 201 of the filter device 20 through the control valve 10, the raw water flows to the raw water channel 2101 of the filter device 20 under the action of water pressure, the raw water is treated by the filter element 22 under the action of water pressure, and then the generated purified water flows from the purified water outlet 2201 of the filter element 22 to the second communication opening 202 of the filter device 20 under the action of water pressure, and flows out and is provided from the second communication opening 202 under the control of the control valve 10. Correspondingly, this moment according to the utility model discloses this water purifier 2 of embodiment is in a filtration operating condition. Further, when the control valve 10 of the water purifier 2 according to the embodiment of the present invention controls the raw water to backwash the filtering device 20, the user can control the raw water to flow to the second communicating opening 202 of the filtering device 20 through the control valve 10, the raw water flows to the purified water outlet 2201 of the filter element 22 of the filtering device 20 under the action of the water pressure, and the filter element 22 is backwashed under the action of the water pressure, the generated sewage flows to the first communicating opening 201 of the filtering device 20 from the raw water channel 2101 under the action of the water pressure, and flows out from the first communicating opening 201 under the control of the control valve 10. Correspondingly, this moment according to the utility model discloses this water purifier 2 of embodiment is in a back flush operating condition. It should be understood that the term "back flushing" as used herein refers to the flow of raw water through the filter element 22 when the filter element 22 is flushed, and the flow of raw water through the filter element 22 when the filter element 22 is used to purify raw water.

As shown in fig. 1A, 2B to 4B of the drawings, further, the water purifier 2 according to the embodiment of the present invention further has a standby operation state, wherein when the water purifier 2 is in the standby operation state, a user can control the raw water to stop flowing to the filtering device 20 through the control valve 10. Accordingly, the raw water will not be supplied to the filtering device 20 through the control valve 10 any more. In other words, at this time, the water purifier 2 of the present invention stops working, and the control valve 10 no longer provides the user with raw water or purified water.

As shown in fig. 2A to 12D of the drawings, the control valve 10 of the water purifier 2 according to the embodiment of the present invention includes a valve body 11 and a valve core 12, wherein the valve body 11 forms a valve chamber 110, a first opening 1101, a second opening 1102, a third opening 1103, a raw water inlet 1105 and a sewage opening 1104, wherein the valve core 12 is disposed in the valve chamber 110, wherein the first opening 1101 of the valve body 11 is adapted to communicate with the first communication opening 201 of the filtering device 20, the second opening 1102 of the valve body 11 is adapted to communicate with the second communication opening 202 of the filtering device 20, the third opening 1103 of the valve body 11 is adapted to communicate with the first raw water outlet 100, and the raw water inlet 1105 of the valve body 11 is adapted to communicate with a water source (e.g., a tap water pipe or a tap water outlet).

As shown in fig. 2A, 3B, 5A to 5D and 10A of the drawings, the control valve 10 of the water purifier 2 according to the embodiment of the present invention has a filtering position, wherein when the control valve 10 is at the filtering position, the valve core 12 of the control valve 10 forms a first communicating channel 1001 and a second communicating channel 1002, wherein the first communicating channel 1001 is respectively communicated with the first opening 1101 and the raw water inlet 1105 of the valve body 11, and the second communicating channel 1002 is respectively communicated with the second opening 1102 and the third opening 1103 of the valve body 11. Accordingly, when the control valve 10 is at the filtering position, raw water or tap water flows in from the raw water inlet 1105 of the valve body 11 of the control valve 10 under the action of water pressure, and flows to the first opening 1101 of the valve body 11 through the first communication channel 1001, so as to further flow into the raw water channel 2101 of the filtering device 20 from the first communication opening 201 of the filtering device 20, and after the raw water flowing into the raw water channel 2101 is filtered by the filter element 22, the generated purified water flows out from the purified water outlet 2201 of the filter element 22 and flows to the second communication opening 202 of the filtering device 20. Further, the purified water generated by the filter element 22 flows out from the second communication opening 202 under the action of the water pressure, and sequentially flows through the second opening 1102, the second communication passage 1002 and the third opening 1103, so that the generated purified water can be provided through the first water outlet 100 communicated with the third opening 1103. It can be understood that when the control valve 10 of the water purifier 2 according to the embodiment of the present invention is controlled to be at the filtering operation position, the water purifier 2 is controlled to be at the filtering operation state.

As shown in fig. 2A, 3B, 5A to 5D and 10B of the drawings, the control valve 10 of the water purifier 2 according to the embodiment of the present invention further has a back-washing operation position, wherein when the control valve 10 is in the back-washing operation position, the valve core 12 of the control valve 10 forms a third communicating channel 1003 and a fourth communicating channel 1004, wherein the third communicating channel 1003 is respectively communicated with the second opening 1102 and the raw water inlet 1105 of the valve body 11, and the fourth communicating channel 1004 is respectively communicated with the first opening 1101 and the sewage opening 1104 of the valve body 11. Accordingly, when the control valve 10 is in the backwashing operation position, raw water or tap water flows in from the raw water inlet 1105 of the valve body 11 of the control valve 10 through the third communication passage 1003 to the second opening 1102 of the valve body 11 and further flows in the filter device 20 from the second communication opening 202 of the filter device 20 under the hydraulic pressure, and the raw water flows in the filter element 22 from the purified water outlet 2201 of the filter element 22 under the hydraulic pressure, and after backwashing the filter element 22, the generated sewage flows in the raw water passage 2101. At this time, since the first opening 1101 and the drain opening 1104 of the valve body 11 communicate with each other through the fourth communication passage 1004, the sewage generated by backwashing the filter element 22 with raw water flows into the raw water passage 2101, flows out of the first communication opening 201, and sequentially flows through the first opening 1101, the fourth communication passage 1004 and the drain opening 1104, so that the sewage generated by backwashing the filter element 22 with raw water can be discharged through the drain opening 1104. It can be understood that when the control valve 10 of the water purifier 2 according to the embodiment of the present invention is controlled to be in the backwashing operation position, the water purifier 2 is controlled to be in the backwashing operation state.

As shown in fig. 2A, 3B and 10C of the drawings, the valve body 11 of the control valve 10 of the water purifier 2 according to the embodiment of the present invention further has a standby operating position, wherein when the control valve 10 is in the standby operating position, the flow of raw water to the filter device 20 is cut off by the control valve 10 (or stops flowing to the filter device 20), so that the filter device 20 is prevented from being impacted by a water hammer of a tap water pipe, thereby the filter device 20 has a longer service life. In addition, since the impact applied to the filter device 20 is reduced, the housing 21 of the filter device 20 can be made of a transparent resin material having a low strength. That is, when the control valve 10 is in the standby operation position, the flow of raw water into the control valve 10 through the raw water inlet 1105 is shut off by the control valve 10. Correspondingly, when according to the utility model discloses this control valve 10 of this water purifier 2 is controlled when being in this standby work position, the utility model discloses water purifier 2 is controlled to be in its standby operating condition.

As shown in fig. 1A to 1D of the drawings, the water purifier 2 of the present invention further includes a connection pipe 70, wherein the connection pipe 70 forms a raw water path 701 adapted to communicate with a raw water source (such as a tap water pipe 3), wherein the control valve 10 and the faucet 1 are respectively connected to the connection pipe 70, and the raw water inlet 1105 of the control valve 10 and the cold water pipe 16 of the faucet 1 are respectively communicated with the raw water path 701, so that raw water can flow from the raw water path 701 to the control valve 10 and the cold water pipe 16 of the faucet 1.

As shown in fig. 1A to 1D of the drawings, the connection pipe 70 of the water purifier 2 according to the embodiment of the present invention further forms a first through opening 710, a second through opening 720 and a third through opening 730, wherein the first through opening 710 is adapted to be respectively communicated with the raw water inlet 1105 and the raw water path 701 of the control valve 10, the second through opening 720 is adapted to be respectively communicated with the cold water pipe 16 and the raw water path 701 of the water tap 1, and the third through opening 730 is adapted to be respectively communicated with the raw water path 701 and the raw water source. Correspondingly, the utility model discloses water purifier 2 and tap 1 all can be linked together with raw water source through this connecting pipe 70.

As shown in fig. 1A to 1D of the drawings, the connection pipe 70 of the water purifier 2 according to the embodiment of the present invention further forms a first connection end 71, a second connection end 72 and a third connection end 73, wherein the first connection end 71 of the connection pipe 70 forms the first through opening 710, the second connection end 72 forms the second through opening 720, and the third connection end 73 forms the third through opening 730, wherein the control valve 10 is connected to the first connection end 71 of the connection pipe 70, and the faucet 1 is connected to the second connection end 72 of the connection pipe 70. In other words, the control valve 10 and the faucet 1 respectively receive raw water through the raw water path 701, and the flow of raw water to the filter device 20 is not controlled by the faucet 1. Accordingly, the faucet 1, the water purifier 2 and the connection pipe 70 may be regarded as forming a three-way structure. Preferably, the water purifier 2 of the present invention and the faucet 1 are integrated by the connection pipe 70, and are communicated with the tap water pipe 3 by the connection pipe 70. Therefore, the water purifier 2 of the present invention can be regarded as a faucet water purifier with a function of controlling the flow rate of raw water, which can be used integrally with the faucet 1. In addition, since the water purifier 2 and the faucet 1 are integrated together through the connection pipe 70, the faucet 1 can be regarded as an element or a component of the water purifier 2. Preferably, the cold water pipe 16 and the connection pipe 70 are integrally formed. As shown in fig. 1A to 1D of the accompanying drawings, the faucet 1 of the water purifier 2 according to the embodiment of the present invention preferably further includes a hot water pipe 18. In some embodiments, the faucet 1 is an electrically heated faucet.

As shown in fig. 2A and 13 of the drawings, the water purifier 2 according to the embodiment of the present invention further includes a gasket 17, wherein the gasket 17 is disposed between the connection pipe 70 and the control valve 10 to achieve sealing between the connection pipe 70 and the control valve 10. As shown in fig. 2A of the drawings, the water purifier 2 according to the embodiment of the present invention further includes a water outlet elbow 90, wherein the water outlet elbow 90 is communicated with the third opening 1103 of the control valve 10, so that the purified water generated by the filtering device 20 can be provided from the water outlet elbow 90. Preferably, the first water outlet 100 is formed by the water outlet elbow 90 of the water purifier 2.

As shown in fig. 2B to 4B of the drawings, the filtering device 20 of the water purifier 2 according to the embodiment of the present invention further includes a base 24, wherein the filter element 22 is disposed on the base 24, and the base 24 forms a first water chamber 2401, wherein the first water chamber 2401 of the base 24 is respectively communicated with the purified water outlet 2201 of the filter element 22 of the filtering device 20 and the second communication opening 202 of the filtering device 20. In other words, the purified water outlet 2201 of the filter element 22 is communicated with the second communication opening 202 of the filter device 20 through the first water chamber 2401 of the base 24, so that the purified water generated by the filter element 22 can flow out from the second communication opening 202. Preferably, the cartridge 22 is water-tightly disposed in the base 24, and the first water chamber 2401 is formed between the cartridge 22 and the base 24. More preferably, the second communication opening 202 is provided at the base 24.

As shown in fig. 2B to 4B of the drawings, the filter element 22 of the filter device 20 of the water purifier 2 according to the embodiment of the present invention is disposed on the base 24 in a water-tight manner, so as to prevent the raw water in the raw water channel 2101 from flowing into the first water chamber 2401 when the control valve 10 controls the filter element 22 to filter the raw water. Further, the cartridge 22 is removably positioned in the base 24 so that the cartridge 22 can be replaced. Alternatively, the filter element 22 is water-tightly provided at the housing 21 so that raw water can flow only in the raw water passage 2101 when the control valve 10 controls the filter element 22 to filter raw water. Optionally, the cartridge 22 is removably disposed in the housing 21, and the housing 21 is water-tightly disposed in the base 24. Optionally, the cartridge 22 is integrally formed in the base 24. Alternatively, the filter cartridge 22 is integrally formed in the housing 21, and the housing 21 is integrally formed in the base 24.

As shown in fig. 2B to 4B of the drawings, the base 24 of the filtering device 20 of the water purifier 2 according to the embodiment of the present invention includes a base portion 241 and a first spacing portion 242, wherein the first spacing portion 242 is disposed on the base portion 241 and extends from the base portion 241, and the first spacing portion 242 surrounds and forms the first water chamber 2401. More preferably, the first spacer 242 has a ring shape.

As shown in fig. 2B to 4B of the drawings, the first communication opening 201 of the filter device 20 of the water purifier 2 according to the embodiment of the present invention is preferably provided at the base 24. Alternatively, the first communication opening 201 of the filter device 20 is provided in the housing 21. As shown in fig. 2B to 4B of the drawings, the housing 21 of the filter device 20 of the water purifier 2 according to the embodiment of the present invention is preferably disposed at the edge of the base 24. More preferably, the housing 21 is integrally formed with the base 24.

As shown in fig. 2B to 4B of the drawings, the base 24 of the water purifier 2 according to the embodiment of the present invention further has a conducting portion 246, wherein the conducting portion 246 has a first conducting passage 2461 and a second conducting passage 2462, wherein the first conducting passage 2461 is disposed to communicate with the first communicating opening 201 and the raw water passage 2101, respectively, the second conducting passage 2462 is disposed to communicate with the second communicating opening 202 and the first water chamber 2401, respectively, preferably, the first conducting passage 2461 is disposed between the first communicating opening 201 and the raw water passage 2101, and the second conducting passage 2462 is disposed between the second communicating opening 202 and the first water chamber 2401.

As shown in fig. 2B to 4B of the drawings, further, the filter device 20 of the water purifier 2 according to the embodiment of the present invention further includes a brush 26, wherein the brush 26 includes a brush body 261, wherein the brush body 261 is rotatably disposed between the housing 21 and the filter element 22, so that the brush body 261 can brush the outer surface of the filter element 22 facing the housing 21 when rotated. Further, the brush body 261 of the brush 26 of the filter device 20 includes a bristle holder 2611 and a set of bristles 2612, wherein the bristles 2612 of the brush body 261 of the brush 26 are disposed on the bristle holder 2611, and the bristles 2612 are disposed toward the filter element 22, so that when the brush body 261 is rotated, the bristles 2612 can brush the outer surface of the filter element 22. It can be understood that when the filter element 22 of the filter device 20 of the water purifier 2 of the present invention is backwashed, the brush body 261 is rotated, so that the outer surface of the filter element 22 facing the housing 21 is cleaned. In other words, this brush 26 combines the raw water right the utility model discloses this filter core 22 of this filter equipment 20 of water purifier 2's backwash, can backwash effectively this filter core 22 of this filter equipment 20 of water purifier 2 to improved the utility model discloses this filter equipment 20's of water purifier 2 life.

As shown in fig. 2B to 4B of the drawings, the brush 26 of the filtering device 20 of the water purifier 2 according to the embodiment of the present invention further has an operation end 262 disposed at the bristle holder 2611, the housing 21 of the filtering device 20 has an operation hole 211, and the operation end 262 extends from the bristle holder 2611 and passes through the operation hole 211 of the housing 21, so that a user can rotate the operation end 262 by a driving mechanism, such as a knob, a rotating handle, etc., to drive the brush body 261 to rotate along the outer surface of the filter element 22. It is understood that the manipulation end 262 extends from the bristle bar 2611 and through the manipulation hole 211 of the housing 21.

As shown in fig. 2A and fig. 5A to fig. 12D of the drawings, the control valve 10 of the water purifier 2 according to the embodiment of the present invention is a planar valve, wherein the valve core 12 of the planar valve 10 further includes a fixed valve plate 121 and a movable valve plate 122, wherein the fixed valve plate 121 has a first fluid control surface 1210, the movable valve plate 122 has a second fluid control surface 1220, wherein the movable valve plate 122 and the fixed valve plate 121 are both disposed in the valve cavity 110, wherein the second fluid control surface 1220 of the movable valve plate 122 is disposed on the first fluid control surface 1210 of the fixed valve plate 121, and the movable valve plate 122 is disposed to rotate relative to the fixed valve plate 121. Preferably, the raw water inlet 1105 communicates with the valve chamber 110 of the valve body 11.

As shown in fig. 2A and fig. 5A to fig. 12D of the drawings, the planar valve 10 of the water purifier 2 according to the embodiment of the present invention has a first channel 101, a second channel 102, a third channel 103, a fourth channel 104, a fifth channel 105 and a sixth channel 106, wherein the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 are respectively disposed on the fixed valve plate 121 and respectively extend from the first fluid control surface 1210 of the fixed valve plate 121; the fifth channel 105 and the sixth channel 106 are respectively disposed on the movable valve plate 122 and respectively extend from the second fluid control surface 1220 of the movable valve plate 122, wherein the first channel 101 is communicated with the first opening 1101, the second channel 102 is communicated with the second opening 1102, the third channel 103 is communicated with the third opening 1103, the fourth channel 104 is communicated with the drain opening 1104, and the fifth channel 105 is communicated with the raw water inlet 1105. Preferably, the raw water inlet 1105 and the fifth passage 105 communicate with the valve chamber 110, respectively, so that the fifth passage 105 communicates with the raw water inlet 1105. More preferably, the sixth channel 106 of the movable valve plate 122 is a blind through hole.

As shown in fig. 11A to 11D of the drawings, the first fluid control surface 1210 of the fixed valve plate 121 of the planar valve 10 of the water purifier 2 according to an embodiment of the present invention forms a central portion 12101, an extending portion 12102 extending outward from the central portion 12101, and an edge portion 12103 extending outward from the extending portion 12102, wherein the first channel 101 and the second channel 102 of the planar valve 10 respectively extend from the edge portion 12103 of the first fluid control surface 1210 of the fixed valve plate 121, the third channel 103 and the fourth channel 104 respectively extend from the extending portion 12102 of the first fluid control surface 1210 of the fixed valve plate 121, the second fluid control surface 12201 of the movable valve plate 122 of the planar valve 10 forms a central region 12201, an extending region 12202 extending outward from the central region 12201, and an edge region 12203 extending outward from the extending region 12202, and the fifth channel 105 of the planar valve 10 extends from the edge region 1220 of the second fluid control surface 1220 of the movable valve plate 122 The area 12203 extends, and the sixth channel 106 extends from the extending area 12202 and the edge area 12203 of the second fluid control surface 1220 of the movable plate 122. Preferably, the first channel 101 is disposed outside the fourth channel 104, and the second channel 102 is disposed outside the third channel 103. Preferably, the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 of the flat valve 10 are separately disposed at the first fluid control surface 1210 of the fixed valve plate 121; the fifth channel 105 and the sixth channel 106 of the flat valve 10 are separately disposed at the second fluid control surface 1220 of the movable valve plate 122.

As shown in fig. 10A, 12A and 12B of the drawings, the movable valve plate 122 of the planar valve 10 of the water purifier 2 according to the embodiment of the present invention can rotate relative to the fixed valve plate 121 so as to enable the planar valve 10 to have a filtering position, wherein when the planar valve 10 is located at the filtering position, the fifth channel 105 of the planar valve 10 is communicated with the first channel 101, so as to form the first communicating channel 1001 respectively communicated with the raw water inlet 1105 and the first opening 1101, and the sixth channel 106 of the planar valve 10 is respectively communicated with the second channel 102 and the third channel 103, so as to form the second communicating channel 1002 respectively communicated with the second opening 1102 and the third opening 1103. As shown in fig. 12A of the drawings, when the flat valve 10 of the water purifier 2 according to the embodiment of the present invention is in the filtering position, the fourth channel 104 of the flat valve 10 is blocked (or closed) by the movable valve plate 122.

As shown in fig. 10B and 12C of the drawings, when the flat valve 10 of the water purifier 2 according to the embodiment of the present invention further has a back-flushing operation position, when the flat valve 10 is in the back-flushing operation position, the fifth channel 105 of the flat valve 10 is communicated with the second channel 102, so as to form the third communicating channel 1003 respectively communicated with the raw water inlet 1105 and the second opening 1102, and the sixth channel 106 is respectively communicated with the first channel 101 and the fourth channel 104, so as to form the fourth communicating channel 1004 respectively communicated with the first opening 1101 and the drain opening 1104. As shown in fig. 12C of the accompanying drawings, when the flat valve 10 of the water purifier 2 according to the embodiment of the present invention is in the backwashing operation position, the third channel 103 of the flat valve 10 is blocked (or closed) by the movable valve plate 122.

As shown in fig. 10C and 12D of the drawings, when the flat valve 10 of the water purifier 2 according to the embodiment of the present invention further has a standby position, when the flat valve 10 is in the standby position, the fifth channel 105 and the sixth channel 106 of the flat valve 10 are both blocked by the first fluid control surface 1210 of the fixed valve plate 121, and the raw water is controlled not to enter the filtering device 20 and be purified by the filtering device, and at the same time, the water is not supplied to the user, that is, when the water purifier 2 is in the standby position, the flat valve 10 can prevent the raw water from flowing through the flat valve 10. As shown in fig. 12D of the accompanying drawings, when the planar valve 10 of the water purifier 2 according to the embodiment of the present invention is in the standby position, the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 of the planar valve 10 are respectively blocked (or closed) by the movable valve plate 122.

As shown in fig. 5C of the drawings, the first opening 1101 and the second opening 1102 of the flat valve 10 of the water purifier 2 according to the embodiment of the present invention are disposed on the same side of the valve body 11 of the flat valve 10.

As shown in fig. 5C, 7B to 7E of the drawings, the water purifier 2 according to the embodiment of the present invention further includes a flow guide plate 30, wherein the flow guide plate 30 is disposed between the base 24 of the filtering device 20 and the valve body 11 of the planar valve 10, wherein the flow guide plate 30 has a first flow guide through hole 301 and a second flow guide through hole 302, wherein the first flow guide through hole 301 has a first flow guide port 3011 and a second flow guide port 3012, the second flow guide through hole 302 has a third flow guide port 3021 and a fourth flow guide port 3022, wherein the flow guide plate 30 further has a first side 31 and a second side 32, wherein the first flow guide port 3011 and the third flow guide port 3021 are disposed on the first side 31 of the flow guide plate 30, the second flow guide port 3012 and the fourth flow guide port 3022 are disposed on the second side 32 of the flow guide plate 30, wherein the first side 31 of the baffle 30 is disposed toward the valve body 11 and the second side 32 is disposed toward the pedestal 24. Further, the first pilot port 3011 is disposed and adapted to communicate with the first opening 1101 of the valve body 11, the third pilot port 3021 is disposed and adapted to communicate with the second opening 1102, the second pilot port 3012 is disposed and adapted to communicate with the first communication opening 201 of the filter device 20, and the fourth pilot port 3022 is disposed and adapted to communicate with the second communication opening 202. In other words, the first guiding through hole 301 of the guiding plate 30 is respectively communicated with the first opening 1101 and the first communicating opening 201, and the second guiding through hole 302 is respectively communicated with the second opening 1102 and the second communicating opening 202. Preferably, the baffle 30 is made of a sealing material to be capable of being water-tightly disposed between the seat 24 of the filter device 20 and the control valve 10, thereby functioning to water-tightly seal the connection between the seat 24 of the filter device 20 and the valve body 11 of the control valve 10.

As shown in fig. 5C, 7B and 7E of the drawings, the deflector 30 of the water purifier 2 according to the embodiment of the present invention further has a positioning protrusion 33, wherein the positioning protrusion 33 is preferably disposed on the first side 31, wherein the positioning protrusion 33 is configured to engage with a positioning groove 34 disposed on the valve body 11, so as to help the deflector 30 to be correctly disposed between the valve body 11 of the control valve 10 and the base 24 of the filtering device 20. It can be understood that when the positioning protrusion 33 of the baffle 30 is properly engaged with the positioning groove 34 provided in the valve body 11, the first flow guide port 3011 is communicated with the first opening 1101 of the valve body 11, the third flow guide port 3021 is communicated with the second opening 1102, the second flow guide port 3012 is communicated with the first communication opening 201 of the filter device 20, and the fourth flow guide port 3022 is communicated with the second communication opening 202. It is worth noting that the guide plate 30 of the water purifier 2 of the present invention will obviously reduce the difficulty of manufacturing the base 24 and the valve body 11 of the filtering device 20 of the water purifier 2. As shown in fig. 5C and fig. 7B to fig. 7E of the drawings, the distribution and shape of the first opening 1101 and the second opening 1102 of the valve body 11 of the control valve 10 of the water purifier 2 are irregular in the valve body 11, which makes it difficult to mutually fit and communicate the first communicating opening 201 and the second communicating opening 202 of the filter device 20 with the first opening 1101 and the second opening 1102. Furthermore, if the base 24 of the filter device 20 is in direct communication with the valve body 11, the distribution and shape of the first and

second openings

1101 and 1102 of the valve body 11 on the valve body 11 determine the distribution and shape of the first and

second communication openings

201 and 202 of the filter device 20 on the base 24 thereof, which results in a significant increase in the difficulty of manufacturing the base 24 of the filter device 20. The utility model discloses this first water conservancy diversion mouth 3011 that this guide plate 30 that water purifier 2 adopted was set up at its first side 31 is suitable for being linked together with this first opening 1101 of this valve body 11, this third water conservancy diversion mouth 3021 is suitable for being linked together with this second opening 1102, this second water conservancy diversion mouth 3012 that is set up at its second side 32 is suitable for being linked together with this first intercommunication opening 201 of this filter equipment 20, this fourth water conservancy diversion mouth 3022 is suitable for the structure that is linked together with this second intercommunication opening 202, make things convenient for this first intercommunication opening 201 and this second intercommunication opening 202 and this first opening 1101 and this second opening 1102 to mutually support and communicate of this filter equipment 20. Furthermore, the above-mentioned structure of the flow guide plate 30 adopted by the water purifier 2 of the present invention also enables the base 24 of the filtering device 20 of the water purifier 2 and the valve body 11 of the control valve 10 to be separately manufactured, and the distribution and shape of the first communicating opening 201 and the second communicating opening 202 of the filtering device 20 on the base 24 are not limited by the distribution and shape of the first opening 1101 and the second opening 1102 of the valve body 11 on the valve body 11. This reduces the difficulty of manufacturing the base 24 of the filter device 20.

As shown in fig. 7A and fig. 8A to fig. 9F of the drawings, the stationary plate 121 of the valve element 12 of the flat valve 10 of the water purifier 2 according to the embodiment of the present invention includes a high end portion 1211, a low end portion 1212 and a fixing portion 1213 disposed between the high end portion 1211 and the low end portion 1212, wherein the high end portion 1211 forms the first fluid control surface 1210 of the stationary plate 121, and the low end portion 1212 is disposed in the valve cavity 110 of the valve body 11. Preferably, the lower end portion 1212 of the stationary plate 121 of the valve element 12 of the flat valve 10 of the water purifier 2 of the present invention is integrally formed at the inner wall of the valve body 11 of the flat valve 10.

As shown in fig. 2A, 7A, and 8A to 8B of the accompanying drawings, the control valve 10 of the water purifier 2 according to the embodiment of the present invention further includes a fixing device 40, wherein the fixing device 40 comprises a fixing bracket 41, a first snap-in member 42 and a second snap-in member 43, wherein the fixing support 41 of the fixing device 40 has a receiving chamber 410 and at least one water inlet opening 401, wherein the water inlet opening 401 is respectively communicated with the raw water inlet 1105 of the valve body 11 and the receiving chamber 410, wherein the first engaging member 42 is disposed on the fixing portion 1213 of the fixing plate 121, the second engaging member 43 is disposed on the fixing bracket 41, wherein the first snap-in member 42 and the second snap-in member 43 are arranged and adapted to snap-in with each other, so that the fixing portion 1213 of the fixed valve plate 121 can be fixed to the fixing bracket 41 by the first and second engaging

members

42 and 43. Further, both the water inlet opening 401 and the raw water inlet 1105 of the fixing bracket 41 communicate with the valve chamber 110 of the valve body 11, so that the accommodating chamber 410 of the fixing bracket 41 communicates with the raw water inlet 1105 of the valve body 11 through the water inlet opening 401, the valve chamber 110 of the valve body 11, and raw water can flow into the accommodating chamber 410 of the fixing bracket 41 from the raw water inlet 1105 of the valve body 11. As shown in fig. 7A and 8A to 8B of the drawings, the accommodating chamber 410 of the fixing bracket 41 of the fixing device 40 of the water purifier 2 according to the embodiment of the present invention is configured to accommodate the high end 1211 of the fixed valve plate 121 and the movable valve plate 122 therein, and the fifth channel 105 of the flat valve 10 is configured to communicate with the accommodating chamber 410 of the fixing bracket 41, so that raw water can be provided to the fifth channel 105 of the flat valve 10 through the water inlet opening 401 and the accommodating chamber 410 of the fixing bracket 41. In other words, the fifth passage 105 of the flat valve 10 communicates with the raw water inlet 1105 of the valve body 11 through the receiving chamber 410 of the fixing bracket 41, the water inlet opening 401, the valve chamber 110 of the valve body 11. As shown in fig. 7A and fig. 8A to fig. 8B of the drawings, further, the high end portion 1211 of the fixed valve plate 121 is adapted to be detachably clamped to the fixing portion 1213 of the fixed valve plate 121, and the fixing portion 1213 of the fixed valve plate 121 is adapted to be detachably clamped to the low end portion 1212 of the fixed valve plate 121, so that the high end portion 1211 of the fixed valve plate 121 cannot rotate relative to the fixing portion 1213, and the fixing portion 1213 of the fixed valve plate 121 cannot rotate relative to the low end portion 1212.

It should be noted that, the high end 1211 of the fixed valve plate 121 of the valve element 12 of the flat valve 10 of the water purifier 2 of the present invention is detachably connected to the fixing portion 1213 of the fixed valve plate 121, the fixing portion 1213 of the fixed valve plate 121 is detachably connected to the low end 1212 of the fixed valve plate 121, and the high end 1211 and the movable valve plate 122 of the fixed valve plate 121 are accommodated in the accommodating chamber 410 of the fixing bracket 41, so that the high end 1211, the fixing portion 1213 and the movable valve plate 122 of the fixed valve plate 121 can be integrated together through the fixing bracket 41, the first connecting member 42 and the second connecting member 43 of the fixing device 40. In particular, since the high end portion 1211 of the fixed valve plate 121 forms the first fluid control surface 1210 of the fixed valve plate 121, and the high end portion 1211 of the fixed valve plate 121 is detachably clamped to the fixing portion 1213 of the fixed valve plate 121, the high end portion 1211 can be manufactured separately and the side surface of the high end portion 1211 facing the movable valve plate 122 can be easily processed, such as polished, to form the first fluid control surface 1210. However, if the fixed valve plate 121 of the valve element 12 of the planar valve 10 of the water purifier 2 of the present invention is fixedly disposed on the valve body 11, or the fixed valve plate 121 of the valve element 12 of the planar valve 10 is integrally formed with the valve body 11, the side of the high end 1211 of the fixed valve plate 121 of the valve element 12 of the planar valve 10 facing the movable valve plate 122 is difficult to process and obtain the first fluid control surface 1210.

As shown in fig. 2A, fig. 7A, and fig. 8A to fig. 8B of the drawings, the first engaging member 42 of the fixing device 40 of the water purifier 2 according to the embodiment of the present invention includes a set of hooks 421 disposed on the side wall of the fixing portion 1213 of the fixing plate 121, and the second engaging member 43 has a set of engaging grooves 430, wherein the hooks 421 of the first engaging member 42 are adapted to engage with the engaging grooves 430 of the second engaging member 43, so as to engage the first engaging member 42 and the second engaging member 43 together. Optionally, the first engaging member 42 has a set of engaging grooves 430 disposed on the sidewall of the fixing portion 1213 of the fixing plate 121, and the second engaging member 43 has a set of hooks 421 disposed on the fixing bracket 41, wherein the hooks 421 of the second engaging member 43 are adapted to engage with the engaging grooves 430 of the first engaging member 42. In other words, the hook 421 of the fixing device 40 is disposed on the fixing bracket 41, and the catching groove 430 is disposed on the sidewall of the fixing portion 1213 of the fixing plate 121. Further, the fixing device 40 has a set of guiding grooves 400 and a set of guiding members 45, wherein the guiding grooves 400 are respectively disposed on the side walls of the fixing portion 1213 of the fixing plate 121, the guiding members 45 are disposed on the second engaging member 43 and extend from the second engaging member 43, wherein the guiding members 45 are respectively disposed opposite to the engaging grooves 430, and the width of the guiding members 45 is not greater than the width of the guiding grooves 400, so that the first engaging member 42 and the second engaging member 43 can be engaged with each other under the guiding of the guiding grooves 400 and the guiding members 45.

As shown in fig. 2A, fig. 7A, and fig. 8A to fig. 8B of the drawings, the control valve 10 of the water purifier 2 according to the embodiment of the present invention further includes a driving component 6, wherein the driving component 6 is configured to drive the movable valve plate 122 of the flat valve 10 to rotate relative to the fixed valve plate 121. As shown in fig. 2A, 7A, and 8A to 8B of the drawings, for example, the driving assembly 6 includes a valve rod 60, the fixing bracket 41 further has an operation opening 402, wherein the operation opening 402 is communicated with the accommodating chamber 410 of the fixing bracket 41, wherein the valve rod 60 has a driving end 61 and an operation end 62 extending from the driving end 61, wherein the driving end 61 of the valve rod 60 is disposed in the accommodating chamber 410 of the fixing bracket 41, and the operation end 62 of the valve rod 60 extends from the driving end 61 and passes through the operation opening 402 of the fixing bracket 41 out of the accommodating chamber 410 of the fixing bracket 41. Accordingly, when the operating end 62 of the valve rod 60 is operated to rotate, the driving end 61 is driven to rotate and further drives the movable valve plate 122 to rotate, so that the planar valve 10 is controlled to be in the corresponding working position. Accordingly, the high end 1211, the fixing portion 1213, the movable valve plate 122 and the valve rod 60 of the fixed valve plate 121 can be integrated together through the fixing bracket 41, the first clip member 42 and the second clip member 43 of the fixing device 40, so that the difficulty of assembling the high end 1211, the fixing portion 1213, the movable valve plate 122 and the valve rod 60 of the fixed valve plate 121 into the valve cavity 110 of the valve body 11 is reduced while the difficulty of manufacturing the fixed valve plate 121 is reduced. It can be understood that the manner of integrating the high end 1211, the fixing portion 1213, the movable valve plate 122 and the valve stem 60 of the fixed valve plate 121 via the fixing bracket 41, the first engaging member 42 and the second engaging member 43 of the fixing device 40 also facilitates the automatic assembly and production of the flat valve 10 by the high end 1211, the fixing portion 1213, the movable valve plate 122 and the valve stem 60 of the fixed valve plate 121. Further, the outer diameter of the driving end 61 of the valve rod 60 is smaller than the inner diameter of the containing chamber 410 of the fixed bracket 41 and larger than the inner diameter of the operation opening 402 of the fixed bracket 41, and the outer diameter of the operation end 62 of the valve rod 60 is smaller than the inner diameter of the operation opening 402 of the fixed bracket 41, so that the fixed bracket 41 can press against the driving end 61 of the valve rod 60 under the action of an external force, so that the movable valve plate 122 can press against the high end 1211 of the fixed valve plate 121 and the second fluid control surface 1220 of the movable valve plate 122 is disposed on the first fluid control surface 1210 of the fixed valve plate 121 under the action of the driving end 61 of the valve rod 60.

It is understood that the driving assembly 6 can be any mechanism or component capable of driving the movable plate 122 of the flat valve 10 to rotate relative to the fixed plate 121. For example, the driving assembly 6 may also be a gear set for driving the movable valve plate 122 of the flat valve 10 to rotate relative to the fixed valve plate 121, wherein the gear set includes a driving gear and a driven gear disposed on the sidewall of the movable valve plate 122, and the driving gear is engaged with the driven gear of the movable valve plate 122, so that a user or an operator can drive the movable valve plate 122 to rotate relative to the fixed valve plate 121 by rotating the driving gear. For example, the driving assembly 6 may also include a driving rod disposed on the movable plate 122 of the planar valve 10 and parallel to the second fluid control surface 1220 of the movable plate 122. The user can drive the movable valve plate 122 to rotate relative to the fixed valve plate 121 through the driving rod of the driving assembly 6. As shown in fig. 2A of the drawings, the fixing device 40 of the water purifier 2 according to the embodiment of the present invention further includes a fixing member 44, wherein the fixing member 44 is disposed to press against the fixing bracket 41, and the fixing member 44 is disposed to be adapted to be fixed to the valve body 11 of the flat valve 10. Accordingly, the fixing bracket 41 is held in the valve chamber 110 of the valve body 11 by the fixing member 44.

As shown in fig. 2A, 7A, 8B and 8H of the accompanying drawings, the control valve 10 of the water purifier 2 according to the embodiment of the present invention further includes a positioning member 50, wherein the positioning assembly 50 has a limit member 51 and a reset member 52 provided at the limit member 51, a plurality of arc-shaped limit grooves 501 provided at an inner wall of the fixing bracket 41 and an operating chamber 502 provided at the driving end 61 of the valve stem 60, wherein the stop element 51 and the reset element 52 are both disposed within the operating chamber 502, and the reset element 52 is disposed between the stop element 51 and the driving end 61, so that when the driving end 61 of the valve rod 60 is rotated, and the position-limiting member 51 is aligned with the position-limiting groove 501, the position-limiting element 51 will move into the position-limiting groove 501 under the action of the reset force (or elastic force) of the reset element 52; at this time, when the driving end 61 of the valve stem 60 is continuously rotated so that the fixing bracket 41 presses the stopper member 51 to retract the stopper member 51 into the operating chamber 502, the driving end 61 of the valve stem 60 can be easily rotated and the stopper member 51 can be kept retracted into the operating chamber 502 by the pressing of the fixing bracket 41. It can be understood that the driving end 61 of the valve rod 60 is rotated so that the position-limiting element 51 is opposite to the position-limiting groove 501, so that when the position-limiting element 51 moves into the position-limiting groove 501, the flat valve 10 is maintained at a corresponding working position, and the water purifier 2 of the present invention is in a corresponding working state. It will be appreciated that the return element 52 is a return spring. Optionally, the reset element 52 is a reset spring. Preferably, the position-limiting element 51 is configured to engage with the position-limiting groove 501, so that the position-limiting element 51 can be stably retained in the position-limiting groove 501 when the valve rod 60 is driven to rotate in the absence of proper external force.

As shown in fig. 2A and 8C to 8G of the drawings, the planar valve 10 of the water purifier 2 according to the embodiment of the present invention further includes a sealing assembly 13, wherein the sealing assembly 13 has a first sealing member 131, wherein the first sealing member 131 is disposed between the high end 1211 of the fixed valve plate 121 and the fixing portion 1213. Further, the first sealing element 131 has a plurality of first sealing strips 1311, the fixing portion 1213 of the fixed valve plate 121 has a set of first sealing grooves 12130, wherein the first sealing grooves 12130 are disposed around the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 of the fixed valve plate 121, respectively, and the first sealing strips 1311 of the first sealing element 131 are disposed along the first sealing grooves 12130 of the fixing portion 1213, so that the first sealing strips 1311 of the first sealing element 131 can be engaged with the first sealing grooves 12130 of the fixing portion 1213 and achieve sealing between the high end 1211 of the fixed valve plate 121 and the fixing portion 1213. It is understood that the first sealing groove 12130 is formed at a side of the fixing portion 1213 toward the high end 1211. Further, the sealing assembly 13 has a second sealing element 132, wherein the second sealing element 132 is disposed between the fixing portion 1213 and the lower end 1212 of the stationary plate 121. Further, the second sealing element 132 has a plurality of second sealing strips 1321, the fixing portion 1213 of the fixed valve plate 121 has a set of second sealing grooves 12131, wherein the second sealing groove 12131 is disposed around the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 of the fixed valve plate 121, respectively, and the second sealing strip 1321 of the second sealing element 132 is disposed according to the second sealing groove 12131 of the fixing portion 1213, so that the second sealing strip 1321 of the second sealing element 132 can be engaged in the second sealing groove 12131 of the fixing portion 1213 and achieve sealing between the lower end 1212 and the fixing portion 1213 of the fixed valve plate 121. It is understood that the second sealing groove 12131 is formed on a side of the fixing portion 1213 toward the lower end portion 1212.

As shown in fig. 2A and 7A of the drawings, the sealing assembly 13 of the water purifier 2 according to the embodiment of the present invention further includes at least one first sealing ring 133, wherein the first sealing ring 133 is disposed on the outer surface of the fixing bracket 41 to seal the fixing bracket 41 and the inner wall of the valve body 11 and prevent raw water from flowing out between the fixing bracket 41 and the inner wall of the valve body 11. Further, the sealing assembly 13 includes at least one second sealing ring 134, wherein the second sealing ring 134 is disposed between the valve stem 60 and the fixing bracket 41 to achieve sealing between the valve stem 60 and the inner wall of the fixing bracket 41 and prevent raw water from flowing out from between the valve stem 60 and the inner wall of the fixing bracket 41.

As shown in fig. 2A and 7A of the drawings, the control valve 10 of the water purifier 2 according to the embodiment of the present invention further includes a knob 80, wherein the knob 80 is disposed at the operation end 62 of the valve rod 60, so that a user can rotate the valve rod 60, thereby rotating the movable plate 122 and controlling the flat valve 10 to be in a corresponding working position.

As shown in fig. 11A to 12D of the drawings, the first fluid control surface 1210 of the fixed valve plate 121 of the planar valve 10 of the water purifier 2 according to the embodiment of the present invention has a central portion 12101 shown by a dotted line in the drawings, an extending portion 12102 extending outward from the central portion 12101, and an edge portion 12103 extending outward from the extending portion 12102, wherein the central portion 12101, the extending portion 12102, and the edge portion 12103 are disposed at the top end portion 1214 of the fixed valve plate 121, and the extending portion 12102 and the edge portion 12103 (or the portion outside the central portion 12101) of the first fluid control surface 1210 are equally divided into a first portion 1201, a second portion 1202, a third portion 1203, and a fourth portion 1204 shown by dotted lines; the second fluid control surface 1220 of the movable plate 122 of the flat valve 10 has a central area 12201 shown by a dashed line in the figure, an extending area 12202 extending outward from the central area 12201, and an edge area 12203 extending outward from the extending area 12202, wherein the central area 12201, the extending area 12202, and the edge area 12203 are disposed at the bottom end 1221 of the movable plate 122, and the extending area 12202 and the edge area 12203 (the portion outside the central area 12201) of the second fluid control surface 1220 are equally divided into a first area 2001, a second area 2002, a third area 2003, and a fourth area 2004 shown by dashed lines; the first channel 101 extends downward from the first portion 1201 of the first fluid control surface 1210 of the fixed valve plate 121, the second channel 102 extends downward from the third portion 1203 of the first fluid control surface 1210 of the fixed valve plate 121, the third channel 103 extends downward from the third portion 1203 of the first fluid control surface 1210 of the fixed valve plate 121, the fourth channel 104 extends downward from the first portion 1201 of the first fluid control surface 1210 of the fixed valve plate 121, the fifth channel 105 extends upward from the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122, and the sixth channel 106 extends upward from the third area 2003 of the second fluid control surface 1220 of the movable valve plate 122. As shown in fig. 11A to 11D of the drawings, preferably, the extension portion 12102 and the edge portion 12103 of the first fluid control surface 1210 are equally divided clockwise into the first portion 1201, the second portion 1202, the third portion 1203 and the fourth portion 1204, and the extension area 12202 and the edge area 12203 of the second fluid control surface 1220 of the movable plate 122 of the flat valve 10 are equally divided clockwise into the first area 2001, the second area 2002, the third area 2003 and the fourth area 2004. In other words, the first fluid control surface 1210 of the fixed valve plate 121 of the flat valve 10 forms four equal divisions, and the second fluid control surface 1220 of the movable valve plate 122 of the flat valve 10 forms four equal divisions, wherein when the movable valve plate 122 of the flat valve 10 is rotated until the first division (the first area 2001) of the second fluid control surface 1220 of the movable valve plate 122 faces the first division (the first portion 1201) of the first fluid control surface 1210 of the fixed valve plate 121, the third division (the third area 2003) of the second fluid control surface 1220 of the movable valve plate 122 of the flat valve 10 faces the third division (the third portion 1203) of the first fluid control surface 1210 of the fixed valve plate 121, so that the fifth channel 105 of the flat valve 10 communicates with the first channel 101, and the sixth channels 106 communicate with the second channel 102 and the third channel 103, respectively, so as to allow raw water to flow into the first communication opening 201 of the filter device 20 from the raw water inlet 1105, the fifth passage 105, the first passage 101, the first opening 1101, and then into the raw water passage 2101 of the filter device 20, after the raw water is filtered by the filter element 22 of the filter device 20, the raw water flows out through the purified water outlet 2201 of the filter element 22 and flows out through the second communication opening 202, the second opening 1102, the second passage 102, the sixth passage 106, the third passage 103, and the third opening 1103, and is provided, accordingly, the water purifier 2 is at the filtering station at this time. Further, when the movable valve plate 122 of the planar valve 10 is rotated to the position where the first half (the first area 2001) of the second fluid control surface 1220 of the movable valve plate 122 faces the fourth half (the fourth part 1204) of the first fluid control surface 1210 of the fixed valve plate 121, the third half (the third area 2003) of the second fluid control surface 1220 of the movable valve plate 122 of the planar valve 10 faces the second half (the second part 1202) of the first fluid control surface 1210 of the fixed valve plate 121, so that the fifth channel 105 and the sixth channel 106 of the planar valve 10 are blocked by the first fluid control surface 1210 of the fixed valve plate 121, respectively, and the planar valve 10 controls raw water not to enter the filtering device 20 and to be purified by the filtering device, and also does not supply water to a user, accordingly, and the water purifier 2 is in the standby operating position. Further, when the movable valve plate 122 of the planar valve 10 is rotated to the position that the first partition (the first area 2001) of the second fluid control surface 1220 of the movable valve plate 122 faces the third partition (the third portion 1203) of the first fluid control surface 1210 of the fixed valve plate 121, the third partition (the third area 2003) of the second fluid control surface 1220 of the movable valve plate 122 of the planar valve 10 faces the first partition (the first portion 1201) of the first fluid control surface 1210 of the fixed valve plate 121, so that the fifth passage 105 and the second passage 102 of the planar valve 10 are communicated, and the sixth passage 106 is respectively communicated with the first passage 101 and the fourth passage 104, so as to allow the raw water from the inlet 1105, the fifth passage 105, the second passage 102, and the second opening 1102 to flow into the second communication opening 202 of the filtering device 20 and the raw water outlet 1 of the filter element 22, the raw water is backwashed (when the flow direction of the water in the filter element 22 is opposite to that of the water in the filter element 22 during the backwashing, the flow direction of the water in the filter element 22 is opposite to that during the filtering), then flows out through the raw water passage 2101, and is discharged through the first communication opening 201, the first opening 1101, the first passage 101, the sixth passage 106, the fourth passage 104 and the sewage discharge opening 1104, and accordingly, the water purifier 2 is in the backwashing operation position at this time.

As shown in fig. 11A to 11D of the drawings, preferably, the second channel 102 and the third channel 103 of the flat valve 10 of the water purifier 2 according to the embodiment of the present invention extend along the first fluid control surface 1210, and the extending directions of the second channel 102 and the third channel 103 are the same, and the fifth channel 105 corresponds to the sixth channel 106, so that when the movable plate 122 of the flat valve 10 is rotated to make the fifth channel 105 coincide with the first channel 101, the sixth channel 106 coincides with the second channel 102 and the third channel 103 at the same time. At this time, the user can control the flow rate of the raw water flowing to the filter 20 by adjusting the overlapping degree of the fifth channel 105 and the first channel 101. It can be understood that when the user adjusts the degree of coincidence of the fifth channel 105 with the first channel 101, the degree of coincidence of the sixth channel 106 with the second channel 102 (and the third channel 103) is adjusted accordingly. Therefore, user's accessible adjustment the utility model discloses this water purifier 2's of embodiment intake and play water, thereby it is right to realize the utility model discloses this water purifier 2's of embodiment stepless flow control. In other words, when the control valve 10 is switched to the filtering position, the overlapping degree between the channels (the fifth channel 105 and the sixth channel 106) of the movable valve plate 122 and the channels (the first channel 101, the second channel 102 and the third channel 103) of the fixed valve plate 121 can be adjusted by rotating the movable valve plate 122 around the center of the movable valve plate 122, so as to achieve the stepless flow control of the inlet water and the outlet water of the water purifier 2. Preferably, the third channel 103 is located inside the second channel 102, and the third channel 103 corresponds to the second channel 102. Preferably, the first channel 101, the second channel 102 and the third channel 103 are all arc-shaped, and the fifth channel 105 and the sixth channel 106 are all arc-shaped, and more preferably, the first channel 101, the second channel 102 and the third channel 103 all extend around the center arc of the first fluid control surface 1210 of the fixed valve plate 121 of the flat valve 10, and the fifth channel 105 and the sixth channel 106 all extend around the center arc of the second fluid control surface 1220 of the movable valve plate 122. Most preferably, the first channel 101, the second channel 102 and the third channel 103 all extend around the central portion 12101 of the first fluid control surface 1210 of the fixed valve plate 121 of the flat valve 10 in an arc shape, the fifth channel 105 and the sixth channel 106 all extend around the central area 12201 of the second fluid control surface 1220 of the movable valve plate 122 in an arc shape, and the second channel 102 and the third channel 102 correspond to the same central angle, so as to easily realize stepless control of water flow rate by the flat valve 10. Optionally, the first fluid control surface 1210 is circular, and the second channel 102 and the third channel 103 extend tangential to the first fluid control surface 1210. Preferably, the fifth channel 105 and the sixth channel 106 are disposed at two opposite positions of the movable valve plate 122, and the first channel 101 and the second channel 102 are symmetrical. More preferably, the central angle corresponding to the fifth channel 105 and the central angle corresponding to the first channel 101 are equal in size, and the central angle corresponding to the sixth channel 106 and the central angle corresponding to the second channel 102 are equal in size, so as to easily realize stepless control of the water flow rate by the planar valve 10. Most preferably, the central angles of the first channel 101, the second channel 102, the third channel 103, the fifth channel 105 and the sixth channel 106 are equal in size.

It can be understood that, according to the embodiment of the present invention, the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 of the flat valve 10 of the water purifier 2 are distributed on the first fluid control surface 1210 of the fixed valve plate 121 of the flat valve 10, so that when the movable valve plate 122 of the flat valve 10 of the water purifier 2 rotates relative to the fixed valve plate 121, so that the flat valve 10 is switched from the standby operating position to the filtering operating position (or from the filtering operating position to the standby operating position), or switched from the standby operating position to the backwashing operating position (or from the backwashing operating position to the standby operating position), even if the operating positions are not completely switched (or during switching), the movable valve plate 122 of the flat valve 10 can rotate relative to the fixed valve plate 121 to achieve stable conduction of the flow channel. The main reason is that when the flat valve 10 is switched from the standby operating position to the filtering operating position or from the filtering operating position to the standby operating position, in the switching process, the fifth channel 105 of the flat valve 10 is always in stable communication with only the first channel 101, and the sixth channel 106 of the flat valve 10 is always in stable communication with only the second channel 102 and the third channel 103, respectively; when the flat valve 10 is switched from the standby operating position to the backwashing operating position or from the backwashing operating position to the standby operating position, during the switching process, the fifth channel 105 of the flat valve 10 is always in stable communication with only the second channel 102, and the sixth channel 106 of the flat valve 10 is always in stable communication with only the first channel 101 and the fourth channel 104, respectively, so as to ensure that no cross flow occurs when the flat valve 10 is switched from the standby operating position to the filtering operating position or from the filtering operating position to the standby operating position, and from the standby operating position to the backwashing operating position or from the backwashing operating position to the standby operating position, thereby ensuring the stepless control of the flow rate of the water flow passing through the control valve 10 during the station switching process.

As shown in fig. 11A to 12D of the drawings, it should be noted that, when a user needs to switch the water purifier 2 according to the embodiment of the present invention from the filtering operation state to the standby operation state, the movable valve plate 122 of the flat valve 10 can be rotated counterclockwise by an equal angle, so that the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122 faces the fourth portion 1204 of the first fluid control surface 1210 of the fixed valve plate 121; when the user needs to switch the water purifier 2 according to the embodiment of the present invention from the standby operation state to the backwashing operation state, the movable valve plate 122 of the planar valve 10 can be rotated counterclockwise again by an equal angle, so that the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122 is directly opposite to the third portion 1203 of the first fluid control surface 1210 of the fixed valve plate 121. In other words, the utility model discloses the structure of this plane valve 10 of water purifier 2 makes the three operating condition continuous distribution of the filtration operating condition of this water purifier 2, standby operating condition and back flush operating condition, thereby makes the utility model discloses complete switching between the adjacent operating condition of the filtration operating condition of water purifier 2, standby operating condition and back flush operating condition only needs this movable valve piece 122 one of this plane valve 10 of rotation to divide the angle and can realize. The utility model discloses the switching mode between the three operating condition of this water purifier 2 of the structure decision of this plane valve 10 of water purifier 2 will make the utility model discloses switching between the three operating condition of water purifier 2 more accords with user's use custom and is difficult for making when the switching of user between operating condition, because of the turned angle is different, and leads to the mistake to switch operating condition. In addition, as described above, when the water purifier 2 according to the embodiment of the present invention is switched from the standby operation state to the filtering operation state, the stepless control of the flow rates of the inlet water and the outlet water of the water purifier 2 can be realized by adjusting the overlapping degree between the channels (the fifth channel 105 and the sixth channel 106) of the movable valve plate 122 and the channels (the first channel 101, the second channel 102 and the third channel 103) of the fixed valve plate 121. However, when the water purifier 2 is switched from the standby operation state to the filtering operation state, the fifth channel 105 of the movable valve plate 122 can be opposite to the first channel 101 of the fixed valve plate 121 by rotating an equal division angle, and the sixth channel 106 can be opposite to the second channel 102 and the third channel 103, so as to realize the state switching. At this time, the flow rates of the inlet water and the outlet water of the water purifier 2 are maximized. It is understood that the water purifier 2 can be quickly switched from the filtering operation state to the standby operation state by rotating an equally divided angle.

It can be understood that, since the extension portion 12102 and the edge portion 12103 of the first fluid control surface 1210 of the planar valve 10 of the water purifier 2 according to the embodiment of the present invention are quartered, the extension area 12202 and the edge area 12203 of the second fluid control surface 1220 of the movable valve plate 122 of the planar valve 10 are quartered, accordingly, the present invention discloses a water purifier 2, every time a complete switching of an operating state is realized, the movable valve plate 122 of the planar valve 10 rotates 90 degrees. In other words, an angle of the movable valve plate 122 and the fixed valve plate 121 of the flat valve 10 is 90 degrees. Optionally, the extension portion 12102 and the edge portion 12103 of the first fluid control surface 1210 are equally divided into the first portion 1201, the second portion 1202, the third portion 1203 and the fourth portion 1204 counterclockwise, and the extension area 12202 and the edge area 12203 of the second fluid control surface 1220 of the movable plate 122 of the flat valve 10 are equally divided into the first area 2001, the second area 2002, the third area 2003 and the fourth area 2004 counterclockwise. At this moment, the utility model discloses the structure of this plane valve 10 of water purifier 2 makes the three operating condition continuous distribution of back flush operating condition, standby operating condition and the filtration operating condition of this water purifier 2, thereby makes the utility model discloses complete switching between the adjacent operating condition of back flush operating condition, standby operating condition and the filtration operating condition of water purifier 2 only needs this movable valve piece 122 one of this plane valve 10 of rotation to divide the angle and can realize.

As shown in fig. 2A and 12A to 12D of the drawings, the flat valve 10 of the water purifier 2 according to the embodiment of the present invention further includes a stop mechanism 14, wherein the stop mechanism 14 is configured to prevent the ineffective rotation of the movable valve plate 122 of the flat valve 10 relative to the fixed valve plate 121. In other words, when the movable valve plate 122 of the flat valve 10 is rotated to the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122 and faces the first portion 1201 of the first fluid control surface 1210 of the fixed valve plate 121, the water purifier 2 of the present invention is switched to the filtering operation state, the clockwise rotation of the movable valve plate 122 of the flat valve 10 by an equal angle will cause the fifth channel 105 of the flat valve 10 to be blocked by the first fluid control surface 1210 of the fixed valve plate 121, and the flat valve 10 controls the raw water not to enter the filtering device 20 and be purified by the same, and simultaneously, the raw water is not supplied to the user; when the movable valve plate 122 of the flat valve 10 is rotated to the third portion 1203 of the first fluid control surface 1210 of the second fluid control surface 1220 of the movable valve plate 122, the utility model discloses a water purifier 2 is switched to the back-washing operating state, the movable valve plate 122 of the flat valve 10 is rotated counterclockwise by an equal angle, which will cause the fifth channel 105 of the flat valve 10 to be blocked by the first fluid control surface 1210 of the fixed valve plate 121, and the flat valve 10 controls the raw water not to enter the filtering device 20 and be purified by the same, and simultaneously, the raw water is not supplied to the user. Because the utility model discloses this plane valve 10 of this water purifier 2 of embodiment has had a standby operating condition, and the rotation of this movable valve piece 122 this fixed valve piece 121 relatively of above-mentioned two kinds of these plane valves 10 also is equivalent to standby operating condition, and too much the same state can lead to using the increase of the degree of difficulty, so also for invalid rotation.

As shown in fig. 2A and fig. 12A to fig. 12D of the drawings, the stopping mechanism 14 of the water purifier 2 according to the embodiment of the present invention includes a first limiting member 141 and a second limiting member 142, wherein the first limiting member 141 and the second limiting member 142 are respectively disposed on the valve body 11, and the first limiting member 141 is configured to stop the knob 80 from further clockwise rotating when the movable valve plate 122 of the planar valve 10 is rotated to the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122 facing the first portion 1201 of the first fluid control surface 1210 of the fixed valve plate 121; the second limiting member 142 is configured to block the knob 80 from further rotating counterclockwise when the movable valve plate 122 of the flat valve 10 is rotated to the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122 facing the third portion 1203 of the first fluid control surface 1210 of the fixed valve plate 121, so as to prevent the movable valve plate 122 of the flat valve 10 from rotating ineffectively relative to the fixed valve plate 121. The stopping mechanism 14 of the water purifier 2 according to the embodiment of the present invention further includes a stopping member 143, wherein the stopping member 143 is disposed on the knob 80 and protrudes outward from the knob 80, so as to be stopped by the first limiting member 141 when the movable valve plate 122 of the flat valve 10 is rotated to the first portion 1201 of the first fluid control surface 1210 of the fixed valve plate 121 where the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122 is directly facing the movable valve plate 122, and to be stopped by the second limiting member 142 when the movable valve plate 122 of the flat valve 10 is rotated to the third portion 1203 of the first fluid control surface 1210 of the fixed valve plate 121 where the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122 is directly facing the movable valve plate 122.

As shown in fig. 2A of the drawings, according to the embodiment of the present invention, the planar valve 10 of the water purifier 2 further includes a prompt mechanism 15, wherein the prompt mechanism 15 is configured to be switched by the user when the water purifier 2 is in the backwashing operation state, the present invention gives a stop to the knob 80 to enable the user to increase the rotating force for rotating the knob 80, so as to rotate the knob 80 to continue to rotate and switch the water purifier 2 to the backwashing operation state. In this way, the user can be prompted, and the water purifier 2 of the utility model is switched to the backwashing operation state.

As shown in fig. 2A of the drawings, the indication mechanism 15 of the flat valve 10 of the water purifier 2 according to the embodiment of the present invention includes a passive member 151 and an elastic member 152, wherein the passive member 151 includes a passive end 1511 and a fixed end 1512 extending from the passive end 1511, wherein the elastic member 152 is disposed at the fixed end 1512, the passive end 1511 is disposed toward the knob 80, wherein when the user rotates the movable plate 122 of the flat valve 10 to make the first region 2001 of the second fluid control surface 1220 of the movable plate 122 face the third portion 1203 of the first fluid control surface 1210 of the fixed plate 121, the passive end 1511 of the passive member 151 of the indication mechanism 15 will be blocked at the stopping member 143, when the user increases the force of rotating the knob 80, the stopping member 143 drives the passive end 1511 of the passive member 151, thereby deforming the resilient member 152 and allowing the knob 80 to rotate and allowing the movable plate 122 to rotate and the first area 2001 of the second fluid control surface 1220 of the movable plate 122 to face the third portion 1203 of the first fluid control surface 1210 of the fixed plate 121. Preferably, the elastic member 152 is a spring.

As shown in fig. 2A of the drawings, further, the valve body 11 includes a valve main body 111 and a valve housing 112, wherein the valve housing 112 is provided on an outer surface of the valve main body 111. It is understood that the first limiting member 141, the second limiting member 142 and the prompting mechanism 15 are respectively disposed on the valve housing 112 of the valve body 11. Further, the valve housing 112 of the valve body 11 comprises an upper shell 1121 and a lower shell 1122, wherein the upper shell 1121 and the lower shell 1122 of the valve housing 112 form a valve cavity 1120 therebetween, wherein the valve cavity 1120 is configured to accommodate the valve body 111 of the valve body 11 therein.

Referring to fig. 2A, 9A to 9F and 11A to 11D of the drawings, according to an embodiment of the present invention, the present invention further provides a valve plate assembly of the planar valve 10 for a water purifier 2, which includes a fixed valve plate 121 and a movable valve plate 122, wherein the fixed valve plate 121 has a first fluid control surface 1210, the movable valve plate 122 has a second fluid control surface 1220, wherein the movable valve plate 122 and the fixed valve plate 121 are both disposed in the valve cavity 110, wherein the second fluid control surface 1220 of the movable valve plate 122 is disposed on the first fluid control surface 1210 of the fixed valve plate 121, and the movable valve plate 122 is disposed to be capable of rotating relative to the fixed valve plate 121, wherein the planar valve 10 has a first passage 101, a second passage 102, a third passage 103, a fourth passage 104, a fifth passage 105 and a sixth passage 106, wherein the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 are respectively disposed on the fixed valve plate 121 and respectively extend from the first fluid control surface 1210 of the fixed valve plate 121; the fifth channel 105 and the sixth channel 106 are respectively disposed on the movable valve plate 122 and respectively extend from the second fluid control surface 1220 of the movable valve plate 122, wherein the first channel 101 is communicated with the first opening 1101, the second channel 102 is communicated with the second opening 1102, the third channel 103 is communicated with the third opening 1103, the fourth channel 104 is communicated with the drain opening 1104, and the fifth channel 105 is communicated with the raw water inlet 1105. Preferably, the raw water inlet 1105 and the fifth passage 105 communicate with the valve chamber 110, respectively, so that the fifth passage 105 communicates with the raw water inlet 1105. More preferably, the sixth channel 106 of the movable valve plate 122 is a blind through hole.

Fig. 13 to 21D of the accompanying drawings show an alternative implementation of the control valve 10 of the water purifier 2 according to the embodiment of the present invention, wherein the control valve 10A comprises a valve body 11 and a valve core 12A, wherein the valve body 11 forms a valve cavity 110, a first opening 1101, a second opening 1102, a third opening 1103, a raw water inlet 1105 and a sewage opening 1104, wherein the valve core 12A is disposed in the valve chamber 110, the first opening 1101 of the valve body 11 is adapted to communicate with the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is adapted to communicate with the second communication opening 202 of the filter device 20, the third opening 1103 of the valve body 11 is adapted to communicate with the first water outlet 100, the raw water inlet 1105 of the valve body 11 is adapted to communicate with a source of raw water (e.g., a tap water pipe or tap water outlet).

As shown in fig. 13, 14A to 14D and 19A of the drawings, the control valve 10A of the water purifier 2 according to the embodiment of the present invention has a filtering position, wherein when the control valve 10A is located at the filtering position, the valve core 12A of the control valve 10A forms a first communicating channel 1001A and a second communicating channel 1002A, wherein the first communicating channel 1001A is respectively communicated with the first opening 1101 and the raw water inlet 1105 of the valve body 11, and the second communicating channel 1002A is respectively communicated with the second opening 1102 and the third opening 1103 of the valve body 11. Accordingly, when the control valve 10A is at the filtering position, raw water or tap water flows in from the raw water inlet 1105 of the valve body 11 of the control valve 10A under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the first communication channel 1001A, flows into the raw water channel 2101 of the filtering device 20 through the first communication opening 201 of the filtering device 20, and after the raw water flowing into the raw water channel 2101 is filtered by the filter element 22, the produced purified water flows out from the purified water outlet 2201 of the filter element 22 and flows to the second opening 1102 of the valve body 11 through the second communication opening 202. Further, the purified water generated by the filter element 22 flows through the second opening 1102, the second communicating channel 1002A and the third opening 1103 in sequence under the action of the water pressure, so that the generated purified water can be provided through the first water outlet 100 communicated with the third opening 1103. It can be understood that when the control valve 10A of the water purifier 2 according to the embodiment of the present invention is controlled to be at the filtering operation position, the water purifier 2 is controlled to be at the filtering operation state.

As shown in fig. 13, 14A to 14D and 19B of the drawings, the control valve 10A of the water purifier 2 according to the embodiment of the present invention further has a back-flushing operation position, wherein when the control valve 10A is in the back-flushing operation position, the valve core 12A of the control valve 10A forms a third communication channel 1003A and a fourth communication channel 1004A, wherein the third communication channel 1003A is respectively communicated with the second opening 1102 of the valve body 11 and the raw water inlet 1105, and the fourth communication channel 1004A is respectively communicated with the first opening 1101 of the valve body 11 and the drain opening 1104. Accordingly, when the control valve 10A is in the backwashing operation position, raw water or tap water flows in from the raw water inlet 1105 of the valve body 11 of the control valve 10A under the action of water pressure, flows to the second opening 1102 of the valve body 11 through the third communication passage 1003A, and further flows into the second communication opening 202 of the filter device 20, and the raw water flows in the filter element 22 from the purified water outlet 2201 of the filter element 22 under the action of water pressure, and after backwashing the filter element 22, the generated sewage flows in the raw water passage 2101. At this time, since the first opening 1101 and the drain opening 1104 of the valve body 11 communicate with each other through the fourth communication passage 1004A, the sewage generated by backwashing the filter element 22 with raw water flows into the raw water passage 2101, and then sequentially flows through the first communication opening 201, the first opening 1101, the fourth communication passage 1004A and the drain opening 1104, so that the sewage generated by backwashing the filter element 22 with raw water can be discharged through the drain opening 1104. It can be understood that when the control valve 10A of the water purifier 2 according to the embodiment of the present invention is controlled to be in the backwashing operation position, the water purifier 2 is controlled to be in the backwashing operation state.

As shown in fig. 13, 14A to 14D and 19C of the drawings, the valve body 11 of the control valve 10A of the water purifier 2 according to the embodiment of the present invention further has a standby operating position, wherein when the control valve 10A is in the standby operating position, the raw water is controlled not to enter the filtering device 20 and to be purified by the filtering device, and at the same time, the water is not supplied to the user, that is, when the water purifier 2 is in the standby operating position, the control valve 10A is blocked. That is, when the control valve 10A is in the standby operation position, the flow of raw water into the control valve 10A through the raw water inlet 1105 is shut off by the control valve 10A. It can be understood that when the control valve 10A of the water purifier 2 according to the embodiment of the present invention is controlled to be in the standby operating position, the water purifier 2 is controlled to be in the standby operating state.

As shown in fig. 13 to 21D of the drawings, the control valve 10A of the water purifier 2 according to the embodiment of the present invention is a planar valve, wherein the valve core 12A of the planar valve 10A further includes a fixed valve plate 121A and a movable valve plate 122A, wherein the fixed valve plate 121A has a first fluid control surface 1210A, the movable valve plate 122A has a second fluid control surface 1220A, wherein the movable valve plate 122A and the fixed valve plate 121A are both disposed in the valve cavity 110 of the valve body 11 of the planar valve 10A, wherein the second fluid control surface 1220A of the movable valve plate 122A is disposed in the first fluid control surface 1210A of the fixed valve plate 121A, and the movable valve plate 122A is disposed to be capable of rotating relative to the fixed valve plate 121A.

As shown in fig. 18A to 18F and fig. 20A to 20D of the drawings, the planar valve 10A of the water purifier 2 according to the embodiment of the present invention has a first channel 101A, a second channel 102A, a third channel 103A, a fourth channel 104A, a fifth channel 105A, a sixth channel 106A and a raw water inlet channel 107A, wherein the first channel 101A, the second channel 102A, the third channel 103A, the fourth channel 104A and the raw water inlet channel 107A are respectively disposed on the fixed valve plate 121A and respectively extend from the first fluid control surface 1210A of the fixed valve plate 121A; the fifth channel 105A and the sixth channel 106A are respectively disposed on the movable valve plate 122A and respectively extend from the second fluid control surface 1220A of the movable valve plate 122A, wherein the first channel 101A is communicated with the first opening 1101, the second channel 102A is communicated with the second opening 1102, the third channel 103A is communicated with the third opening 1103, the fourth channel 104A is communicated with the drain opening 1104, and the raw water inlet channel 107A is respectively communicated with the fifth channel 105A and the raw water inlet 1105. Preferably, the fifth channel 105A and the sixth channel 106A of the movable valve plate 122A are blind through holes.

As shown in fig. 20A to 20D of the drawings, the first fluid control surface 1210A of the fixed valve plate 121A of the planar valve 10A of the water purifier 2 according to the embodiment of the invention forms a central portion 12101A, an extending portion 12102A extending outward from the central portion 12101A, and an edge portion 12103A extending outward from the extending portion 12102A, wherein the first channel 101A and the second channel 102A of the planar valve 10A respectively extend from the extending portion 12102A of the first fluid control surface 1210A of the fixed valve plate 121A, the third channel 103A and the fourth channel 104A respectively extend from the edge portion 12103A of the first fluid control surface 1210A of the fixed valve plate 121A, the raw water inlet channel 107A extends from the central portion 12101A of the first fluid control surface 1210A of the fixed valve plate 121A, and the second fluid control surface 1220A of the movable valve plate 122A of the planar valve plate 10A forms a central area 12201A, An extension area 12202A extending outward from the central area 12201A and an edge area 12203A extending outward from the extension area 12202A, the fifth channel 105A of the flat valve 10A extends from the extension area 12202A and the central area 12201A of the second fluid control surface 1220A of the movable valve plate 122A, and the sixth channel 106A extends from the extension area 12202A and the edge area 12203A of the second fluid control surface 1220A of the movable valve plate 122A. Preferably, the first channel 101A is disposed inside the fourth channel 104A, and the second channel 102A is disposed inside the third channel 103A. Preferably, the first channel 101A, the second channel 102A, the third channel 103A, the fourth channel 104A and the raw water inlet channel 107A of the flat valve 10A are separately disposed at the first fluid control surface 1210A of the fixed valve plate 121A; the fifth channel 105A and the sixth channel 106A of the flat valve 10A are separately disposed at the second fluid control surface 1220A of the movable valve plate 122A. Preferably, the fifth channel 105A and the sixth channel 106A of the movable valve plate 122A are blind through holes.

As shown in fig. 19A, 21A and 21B of the drawings, the movable valve plate 122A of the planar valve 10A of the water purifier 2 according to the embodiment of the present invention can rotate relative to the fixed valve plate 121A, so that the planar valve 10A has a filtering position, wherein when the planar valve 10A is located at the filtering position, the fifth channel 105A of the planar valve 10A is respectively communicated with the raw water inlet channel 107A and the first channel 101A, so as to form the first communicating channel 1001A respectively communicated with the raw water inlet 1105 and the first opening 1101, and the sixth channel 106A of the planar valve 10A is respectively communicated with the second channel 102A and the third channel 103A, so as to form the second communicating channel 1002A respectively communicated with the second opening 1102 and the third opening 1103. As shown in fig. 21A of the drawings, when the flat valve 10A of the water purifier 2 according to the embodiment of the present invention is in the filtering position, the fourth channel 104A of the flat valve 10A is blocked (or closed) by the movable valve plate 122A.

As shown in fig. 19B and 21C of the drawings, when the flat valve 10A of the water purifier 2 according to the embodiment of the present invention further has a back-flushing operation position, when the flat valve 10A is located at the back-flushing operation position, the fifth channel 105A of the flat valve 10A is respectively communicated with the raw water inlet channel 107A and the second channel 102A, so as to form the third communication channel 1003A respectively communicated with the raw water inlet 1105A and the second opening 1102, and the sixth channel 106A is respectively communicated with the first channel 101A and the fourth channel 104A, so as to form the fourth communication channel 1004A respectively communicated with the first opening 1101 and the drain opening 1104. As shown in fig. 21C of the accompanying drawings, when the flat valve 10A of the water purifier 2 according to the embodiment of the present invention is in the backwashing operation position, the third channel 103A of the flat valve 10A is blocked (or closed) by the movable valve plate 122A.

As shown in fig. 19C and 21D of the drawings, when the flat valve 10A of the water purifier 2 according to the embodiment of the present invention further has a standby operation position, when the flat valve 10A is in the standby operation position, the fifth channel 105A of the flat valve 10A is only communicated with the raw water inlet channel 107A, the sixth channel 106A is blocked by the first fluid control surface 1210A of the fixed valve plate 121A, and since the fifth channel 105A of the flat valve 10A is only communicated with the raw water inlet channel 107A, the flow of raw water flowing into the flat valve 10A through the raw water inlet 1105 is cut off by the flat valve 10A. The raw water is controlled not to enter the filter device 20 and to be purified by it, and also not to be supplied to the user, that is, the flat valve 10A is blocked when the water purifier 2 is in the standby operation position. As shown in fig. 21D of the accompanying drawings, when the planar valve 10A of the water purifier 2 according to the embodiment of the present invention is located at the standby position, the first channel 101A, the second channel 102A, the third channel 103A and the fourth channel 104A of the planar valve 10A are respectively blocked (or closed) by the movable valve plate 122A.

As shown in fig. 13, 16A, 17A and 17B of the drawings, the stationary plate 121A of the valve element 12A of the flat valve 10A of the water purifier 2 according to the embodiment of the present invention includes a high end portion 1211A, a low end portion 1212A and a fixing portion 1213A disposed between the high end portion 1211A and the low end portion 1212A, wherein the high end portion 1211A forms the first fluid control surface 1210A of the stationary plate 121A, and the low end portion 1212A is disposed in the valve cavity 110 of the valve body 11. Preferably, the lower end portion 1212A of the fixed valve piece 121A of the valve body 12A of the flat valve 10A of the water purifier 2 of the present invention is integrally formed at the inner wall of the valve body 11 of the flat valve 10A.

As shown in fig. 13, 16A, 17A and 17G of the drawings, the planar valve 10A of the water purifier 2 according to the embodiment of the present invention further includes a sealing assembly 13A, wherein the sealing assembly 13A has a first sealing element 131A, wherein the first sealing element 131A is disposed between the high end 1211A of the fixed valve plate 121A and the fixing portion 1213A. Further, the first sealing element 131A has a plurality of first sealing strips 1311A, the fixing portion 1213A of the fixed valve plate 121A has a set of first sealing grooves 12130A, wherein the first sealing grooves 12130A are disposed around the first channel 101A, the second channel 102A, the third channel 103A, the fourth channel 104A and the raw water inlet channel 107A of the fixed valve plate 121A, respectively, and the first sealing strips 1311A of the first sealing element 131A are disposed in the first sealing grooves 12130A of the fixing portion 1213A, so that the first sealing strips 1311A of the first sealing element 131A can engage in the first sealing grooves 12130A of the fixing portion 1213A and achieve sealing between the high end 1211A of the fixed valve plate 121A and the fixing portion 1213A. It is understood that the first sealing groove 12130A is formed at a side of the fixing portion 1213A toward the high end 1211A. Further, the seal assembly 13A has a second seal 132A, wherein the second seal 132A is disposed between the fixing portion 1213A and the lower end 1212A of the stationary plate 121A. Further, the second sealing element 132A has a plurality of second sealing strips 1321A, the fixing portion 1213A of the fixed valve plate 121A has a set of second sealing grooves 12131A, wherein the second sealing groove 12131A is disposed around the first channel 101A, the second channel 102A, the third channel 103A, the fourth channel 104A and the raw water inlet channel 107A of the fixed valve plate 121A, respectively, and the second sealing strip 1321A of the second sealing element 132A is disposed in the second sealing groove 12131A of the fixing portion 1213A, so that the second sealing strip 1321A of the second sealing element 132A can engage in the second sealing groove 12131A of the fixing portion 1213A and achieve sealing between the lower end portion 1212A of the fixed valve plate 121A and the fixing portion 1213A. It is understood that the second sealing groove 12131a is formed on a side of the fixing portion 1213A toward the lower end 1212A.

As shown in fig. 13, 16A, 17A and 17B of the drawings, the accommodating chamber 410 of the fixing bracket 41 of the fixing device 40 of the water purifier 2 according to the embodiment of the present invention is configured to accommodate the high end portion 1211A of the fixed valve plate 121A and the movable valve plate 122A therein. As shown in fig. 13, 16A, 17A and 17B of the drawings, further, the high end 1211A of the fixed valve plate 121A is adapted to be detachably clamped to the fixing portion 1213A of the fixed valve plate 121A, and the fixing portion 1213A of the fixed valve plate 121A is adapted to be detachably clamped to the low end 1212A of the fixed valve plate 121A, so that the high end 1211A of the fixed valve plate 121A cannot rotate relative to the fixing portion 1213A, and the fixing portion 1213A of the fixed valve plate 121A cannot rotate relative to the low end 1212A.

As shown in fig. 20A to 21D of the drawings, the first fluid control surface 1210A of the fixed valve plate 121A of the planar valve 10A of the water purifier 2 according to the embodiment of the present invention has a central portion 12101A shown by a dashed line in the drawings, an extending portion 12102A extending outward from the central portion 12101A, and an edge portion 12103A extending outward from the extending portion 12102A, wherein the central portion 12101A, the extending portion 12102A, and the edge portion 12103A are disposed at the top end portion 1214A of the fixed valve plate 121A, and the extending portion 12102A and the edge portion 12103A (or the portion outside the central portion 12101A) of the first fluid control surface 1210A are equally divided into a first portion 1201A, a second portion 1202A, a third portion 1203A, and a fourth portion 1204A shown by dashed lines; the second fluid control surface 1220A of the movable plate 122A of the flat valve 10A has a central area 12201A shown by a dashed-dotted line in the figure, an extending area 12202A extending outward from the central area 12201A, and an edge area 12203A extending outward from the extending area 12202A, wherein the central area 12201A, the extending area 12202A, and the edge area 12203A are disposed at the bottom end 1221A of the movable plate 122A, and the extending area 12202A and the edge area 12203A (the portion outside the central area 12201A) of the second fluid control surface 1220A are equally divided into a first area 2001A, a second area 2002A, a third area 2003A, and a fourth area 2004A shown by dashed-dotted lines; wherein the first channel 101A extends downward from the first portion 1201A of the first fluid control surface 1210A of the stationary plate 121A, the second channel 102A extends downward from the third portion 1203A of the first fluid control surface 1210A of the stationary plate 121A, the third channel 103A extends downward from the third portion 1203A of the first fluid control surface 1210A of the stationary plate 121A, the fourth channel 104A extends downward from the first portion 1201A of the first flow control surface 1210A of the stationary plate 121A, the raw water inlet passage 107A extends downward from the central portion 12101A of the first fluid control surface 1210A of the stationary plate 121A, the fifth channel 105A extends upward from the first area 2001A and the central area 12201A of the second fluid control surface 1220A of the movable valve plate 122A, the sixth channel 106A extends upward from the third area 2003A of the second flow control surface 1220A of the dynamic valve plate 122A. As shown in fig. 20A to 20D of the drawings, preferably, the extension portion 12102A and the edge portion 12103A of the first fluid control surface 1210A are equally divided clockwise into the first portion 1201A, the second portion 1202A, the third portion 1203A and the fourth portion 1204A, and the extension area 12202A and the edge area 12203A of the second fluid control surface 1220A of the movable plate 122A of the flat valve 10A are equally divided clockwise into the first area 2001A, the second area 2002A, the third area 2003A and the fourth area 2004A. In other words, the first fluid control surface 1210A of the fixed plate 121A of the planar valve 10A forms four equal divisions, and the second fluid control surface 1220A of the movable plate 122A of the planar valve 10A forms four equal divisions, wherein when the movable plate 122A of the planar valve 10A is rotated until the first division (the first region 2001A) of the second fluid control surface 1220A of the movable plate 122A faces the first division (the first portion 1201A) of the first fluid control surface 1210A of the fixed plate 121A, the third division (the third region 2003A) of the second fluid control surface 1220A of the movable plate 122A of the planar valve 10A faces the third division (the third portion 1203A) of the first fluid control surface 1210A of the fixed plate 121A, so that the fifth passage 105A of the planar valve 10A communicates with the raw water inlet passage 107A and the first passage 101A, respectively, the sixth channel 106A is respectively communicated with the second channel 102A and the third channel 103A to allow raw water to flow into the first communication opening 201 and the raw water channel 2101 of the filter device 20 from the raw water inlet 1105, the raw water inlet channel 107A, the fifth channel 105A, the first channel 101A and the first opening 1101, the raw water flows out through the purified water outlet 2201 and the second communication opening 202 of the filter device 22 and flows out and is provided through the second opening 1102, the second channel 102A, the sixth channel 106A, the third channel 103A and the third opening 1103 after being filtered by the filter element 22 of the filter device 20, and accordingly, the water purifier 2 is in the filtering operation position at this time. Further, when the movable plate 122A of the flat valve 10A is rotated to the first half (the first area 2001A) of the second fluid control surface 1220A of the movable plate 122A facing the fourth half (the fourth part 1204A) of the first fluid control surface 1210A of the fixed plate 121A, the third half (the third area 2003A) of the second fluid control surface 1220A of the movable plate 122A of the flat valve 10A facing the second half (the second part 1202A) of the first fluid control surface 1210A of the fixed plate 121A, so that the fifth passage 105A of the flat valve 10A is communicated with only the raw water inlet passage 107A, the sixth passage 106A is blocked by the first fluid control surface 1210A of the fixed plate 121A, the flat valve 10A controls the raw water not to enter and be purified by the filtering apparatus 20, and also does not supply water to the user, accordingly, the water purifier 2 is in the standby operation position at this time. Further, when the movable valve plate 122A of the planar valve 10A is rotated to the first partition (the first area 2001A) of the second fluid control surface 1220A of the movable valve plate 122A opposite to the third partition (the third portion 1203A) of the first fluid control surface 1210A of the fixed valve plate 121A, the third partition (the third area 2003A) of the second fluid control surface 1220A of the planar valve 10A opposite to the first partition (the first portion 1201A) of the first fluid control surface 1210A of the fixed valve plate 121A, such that the fifth channel raw water 105A of the planar valve 10A is respectively communicated with the water inlet channel 107A and the second channel 102A, and the sixth channel 106A is respectively communicated with the first channel 101A and the fourth channel 104A, so as to allow raw water to flow from the raw water inlet, the raw water inlet channel 107A, the raw water inlet channel 1105A, The fifth passage 105A, the second passage 102A, and the second opening 1102 flow into the second communication opening 202 of the filter device 20 and the clean water outlet 2201 of the filter element 22, and after raw water is back-flushed (when the raw water is back-flushed, the water flows in the opposite direction to the filter element 22 when the filter element 22 is filtering) through the filter element 22 of the filter device 20, the raw water flows out through the raw water passage 2101 and the first communication opening 201, and then flows out through the first opening 1101, the first passage 101A, the sixth passage 106A, the fourth passage 104A, and the drain opening 1104, and accordingly, the water purifier 2 is in the back-flushing position at this time. It can be understood that the distribution of the first passage 101A, the second passage 102A, the third passage 103A and the fourth passage 104A of the flat valve 10A of the water purifier 2 according to the embodiment of the present invention at the first fluid control surface 1210A of the fixed valve plate 121A of the flat valve 10A, so that when the movable valve plate 122A of the flat valve 10A of the water purifier 2 rotates relative to the fixed valve plate 121A, so that when the flat valve 10A is switched from the standby position to the filtering position (or from the filtering position to the standby position), or switched from the standby position to the backwashing position (or from the backwashing position to the standby position), even if the working position is not switched completely (or during switching), the movable valve plate 122A of the flat valve 10A can rotate relative to the fixed valve plate 121A to achieve stable conduction of the flow passage. The main reason is that when the flat valve 10A is switched from the standby working position to the filtering working position or from the filtering working position to the standby working position, in the switching process, the fifth channel 105A of the flat valve 10A is always stably communicated with the raw water inlet channel 107A and the first channel 101A, respectively, and the sixth channel 106A of the flat valve 10A is always stably communicated with the second channel 102A and the third channel 103A, respectively; when the flat valve 10A is switched from the standby operating position to the backwash operating position or from the backwash operating position to the standby operating position, during the switching, the fifth passage 105A of the flat valve 10A is always in stable communication with the raw water inlet passage 107A and the second passage 102A, the sixth channel 106A of the planar valve 10A is always in stable communication with the first channel 101A and the fourth channel 104A respectively, thereby ensuring that when the flat valve 10A is switched from the standby operating position to the filtering operating position or from the filtering operating position to the standby operating position, and no series flow occurs when switching from the standby working position to the backwash working position or from the backwash working position to the standby working position, thereby ensuring stepless control of the flow rate of the water flow through the control valve 10A during station changeover.

As shown in fig. 20A to 21D of the drawings, the second channel 102A and the third channel 103A of the flat valve 10A of the water purifier 2 according to the embodiment of the present invention extend along the first fluid control surface 1210A, the extending directions of the second channel 102A and the third channel 103A are the same, and the fifth channel 105A corresponds to the sixth channel 106A, so that when the movable valve plate 122A of the flat valve 10A is rotated to overlap the fifth channel 105A with the raw water inlet channel 107A and the first channel 101A, the sixth channel 106A overlaps with the second channel 102A and the third channel 103A at the same time. At this time, the user can control the flow rate of the raw water flowing to the filter device 20 by adjusting the overlapping degree of the fifth channel 105A and the first channel 101A. It is understood that when the user adjusts the degree of coincidence of the fifth channel 105A with the first channel 101A, the degree of coincidence of the sixth channel 106A with the second channel 102A (and the third channel 103A) is adjusted accordingly. Therefore, user's accessible adjustment the utility model discloses this water purifier 2's of embodiment intake and play water, thereby it is right to realize the utility model discloses this water purifier 2's of embodiment stepless flow control. In other words, when the control valve 10A is switched to the filtering position, the overlapping degree between the channels of the movable valve plate 122A (the fifth channel 105A and the sixth channel 106A) and the channels of the fixed valve plate 121A (the first channel 101A, the second channel 102A and the third channel 103A) can be adjusted by rotating the movable valve plate 122A around the center of the movable valve plate 122A, so as to achieve the stepless flow control of the inlet water and the outlet water of the water purifier 2. Preferably, the second channel 102A is located inside the third channel 103A, and the third channel 103A corresponds to the second channel 102A. Preferably, the first channel 101A, the second channel 102A, and the third channel 102A are all arc-shaped, and the fifth channel 105A (the fifth channel 105A is in the portion of the extended area 12202A) and the sixth channel 106A are all arc-shaped. More preferably, the first channel 101A, the second channel 102A and the third channel 102A all extend around the center arc of the first fluid control surface 1210A of the fixed plate 121A of the planar valve 10A, and the fifth channel 105A (the fifth channel 105A is located in the extension area 12202A) and the sixth channel 106A all extend around the center arc of the second fluid control surface 1220A of the movable plate 122A. Most preferably, the first channel 101A, the second channel 102A and the third channel 102A all extend around the central portion 12101A of the first fluid control surface 1210A of the fixed valve plate 121A of the planar valve 10A in an arc shape, the fifth channel 105A (the fifth channel 105A is located in the portion of the extended area 12202A) and the sixth channel 106A all extend around the central area 12201A of the second fluid control surface 1220A of the movable valve plate 122A in an arc shape, and the second channel 102A and the third channel 102A correspond to the same central angle, so as to easily realize stepless control of water flow rate by the planar valve 10A. Optionally, the first fluid control surface 1210A is circular, and the second channel 102A and the third channel 103A extend tangential to the first fluid control surface 1210A. Preferably, the fifth channel 105A and the sixth channel 106A are disposed at two opposite positions of the movable valve plate 122A, and the first channel 101A and the second channel 102A are symmetrical. More preferably, the central angle of the fifth channel 105A (the portion of the fifth channel 105A located in the extended area 12202A) is equal to the central angle of the first channel 101A, and the central angle of the sixth channel 106A is equal to the central angle of the second channel 102A, so as to easily realize the stepless control of the water flow rate by the planar valve 10A. Most preferably, the sizes of the central angles of the first channel 101A, the second channel 102A, the third channel 103A, the fifth channel 105A (the fifth channel 105A is in the portion of the extended area 12202A) and the sixth channel 106A are equal.

As shown in fig. 20A to 21D of the drawings, it should be noted that, when a user needs to switch the water purifier 2 according to the embodiment of the present invention from the filtering operation state to the standby operation state, the movable valve plate 122A of the flat valve 10A only needs to rotate counterclockwise by an equal angle, so that the first area 2001A of the second fluid control surface 1220A of the movable valve plate 122A faces the fourth portion 1204A of the first fluid control surface 1210A of the fixed valve plate 121A; when the user needs to switch the water purifier 2 according to the embodiment of the present invention from the standby operation state to the backwashing operation state, the movable valve plate 122A of the planar valve 10A only needs to rotate counterclockwise again by an equal angle, so that the first area 2001A of the second fluid control surface 1220A of the movable valve plate 122A is directly opposite to the third portion 1203A of the first fluid control surface 1210A of the fixed valve plate 121A. In other words, the utility model discloses this plane valve 10A's of water purifier 2 structure makes the three operating condition continuous distribution of the filtration operating condition of this water purifier 2, standby operating condition and back flush operating condition, thereby makes the utility model discloses the switching between the adjacent operating condition of the filtration operating condition of water purifier 2, standby operating condition and back flush operating condition only needs to rotate this movable valve piece 122A of this plane valve 10A halving angle and can realize. The utility model discloses the switching mode between the three operating condition of this water purifier 2 of this plane valve 10A's of water purifier 2 structure decision will make the utility model discloses switching between the three operating condition of water purifier 2 more accords with user's use custom and is difficult for making when the switching of user between operating condition, because of the turned angle is different, and leads to the mistake to switch operating condition.

It can be understood that, since the extension portion 12102A and the edge portion 12103A of the first fluid control surface 1210A of the planar valve 10A of the water purifier 2 according to the embodiment of the present invention are quartered, the extension area 12202A and the edge area 12203A of the second fluid control surface 1220A of the movable valve plate 122A of the planar valve 10A are quartered, accordingly, the present invention provides a water purifier 2 in which the movable valve plate 122A of the planar valve 10A rotates 90 degrees every time an operating state is switched. In other words, a bisected angle between the movable valve plate 122A and the fixed valve plate 121A of the planar valve 10A is 90 degrees. Optionally, the extension portion 12102A and the edge portion 12103A of the first fluid control surface 1210A are equally divided into the first portion 1201A, the second portion 1202A, the third portion 1203A, and the fourth portion 1204A counterclockwise, and the extension area 12202A and the edge area 12203A of the second fluid control surface 1220A of the movable plate 122A of the planar valve 10A are equally divided into the first area 2001A, the second area 2002A, the third area 2003A, and the fourth area 2004A counterclockwise. At this moment, the utility model discloses this plane valve 10A's of water purifier 2 structure makes the three operating condition continuous distribution of back flush operating condition, standby operating condition and the filtration operating condition of this water purifier 2, thereby makes the utility model discloses the switching between the adjacent operating condition of back flush operating condition, standby operating condition and the filtration operating condition of water purifier 2 only needs to rotate this movable valve piece 122A of this plane valve 10A halving angle and can realize. In addition, as described above, when the water purifier 2 according to the embodiment of the present invention is switched from the standby operating state to the filtering operating state, the stepless control of the flow rates of the inlet water and the outlet water of the water purifier 2 can be realized by adjusting the overlapping degree between the channels of the movable valve plate 122A (the fifth channel 105A and the sixth channel 106A) and the channels of the fixed valve plate 121A (the first channel 101A, the second channel 102A and the third channel 103A). However, when the water purifier 2 is switched from the standby operation state to the filtering operation state, the fifth channel 105A of the movable valve plate 122A can be opposite to the raw water inlet channel 107A and the first channel 101A of the fixed valve plate 121A by rotating an equal division angle, and the sixth channel 106A can be opposite to the second channel 102A and the third channel 103A, so as to realize the state switching. At this time, the flow rates of the inlet water and the outlet water of the water purifier 2 are maximized. It is understood that the water purifier 2 can be quickly switched from the filtering operation state to the standby operation state by rotating an equally divided angle.

As shown in fig. 13 and fig. 21A to 21D of the drawings, the flat valve 10A of the water purifier 2 according to the embodiment of the present invention further includes a stop mechanism 14A, wherein the stop mechanism 14A is configured to prevent the ineffective rotation of the movable valve plate 122A of the flat valve 10A relative to the fixed valve plate 121A. In other words, when the movable valve plate 122A of the flat valve 10A is rotated to the first area 2001A of the second fluid control surface 1220A of the movable valve plate 122A to face the first portion 1201A of the first fluid control surface 1210A of the fixed valve plate 121A, the water purifier 2 of the present invention is switched to the filtering operation state, the clockwise rotation of the movable valve plate 122A of the flat valve 10A by an equal angle will cause the fifth channel 105A of the flat valve 10A to be communicated with the raw water inlet channel 107A only, and the flat valve 10A controls the raw water not to enter the filtering device 20 and be purified by the filtering device, and simultaneously does not supply water to the user; when the movable valve plate 122A of the flat valve 10A is rotated to the first area 2001A of the second fluid control surface 1220A of the movable valve plate 122A, which is just opposite to the third portion 1203A of the first fluid control surface 1210A of the fixed valve plate 121A, the utility model discloses a water purifier 2 is switched to the back washing operation, the movable valve plate 122A of the flat valve 10A is rotated counterclockwise by an equal angle, which will lead to that the fifth channel 105A of the flat valve 10A is only communicated with the raw water inlet channel 107A, and the flat valve 10A controls the raw water not to enter the filtering device 20 and be purified by the same, and meanwhile, the water is not supplied to the user. Because the utility model discloses this plane valve 10A of this water purifier 2 of embodiment has had a standby operating condition, and the rotation of this movable valve piece 122A of above-mentioned two kinds of this plane valves 10A this fixed valve piece 121A relatively also is equivalent to standby operating condition, and too much the same state can lead to using the increase of the degree of difficulty, so also for invalid rotation.

As shown in fig. 13 and fig. 21A to 21D of the drawings, the stopping mechanism 14A of the water purifier 2 according to the embodiment of the present invention includes a first limiting member 141A and a second limiting member 142A, wherein the first limiting member 141A and the second limiting member 142A are respectively disposed on the valve body 11, and the first limiting member 141A is configured to stop the knob 80 from further clockwise rotating when the movable valve plate 122A of the planar valve 10A is rotated to the first portion 1201A of the second fluid control surface 1220A of the movable valve plate 122A, and the first area 2001A is opposite to the first portion 1201A of the first fluid control surface 1210A of the fixed valve plate 121A; the second limiting member 142A is configured to block the knob 80 from further rotating counterclockwise when the movable valve plate 122A of the planar valve 10A is rotated to the position where the first area 2001A of the second fluid control surface 1220A of the movable valve plate 122A faces the third portion 1203A of the first fluid control surface 1210A of the fixed valve plate 121A, so as to prevent the movable valve plate 122A of the planar valve 10A from rotating ineffectively with respect to the fixed valve plate 121A. The stopping mechanism 14A of the water purifier 2 according to the embodiment of the present invention further includes a stopping member 143A, wherein the stopping member 143A is disposed on the knob 80 and protrudes outward from the knob 80, so as to be stopped by the first limiting member 141A when the movable valve plate 122A of the flat valve 10A is rotated to the first area 2001A of the second fluid control surface 1220A of the movable valve plate 122A facing the first portion 1201A of the first fluid control surface 1210A of the fixed valve plate 121A, and to be stopped by the second limiting member 142A when the movable valve plate 122A of the flat valve 10A is rotated to the first area 2001A of the second fluid control surface 1220A of the movable valve plate 122A facing the third portion 1203A of the first fluid control surface 1210A of the fixed valve plate 121A.

As shown in fig. 13 of the drawings, the planar valve 10A of the water purifier 2 according to the embodiment of the present invention further includes a prompt mechanism 15A, wherein the prompt mechanism 15A is configured to be switched by the user when the water purifier 2 is in the backwashing operation state, the present invention gives a stop to the knob 80 to enable the user to increase the rotating force for rotating the knob 80, so as to rotate the knob 80 to continue to rotate and switch the water purifier 2 to the backwashing operation state. In this way, the user can be prompted, and the water purifier 2 of the utility model is switched to the backwashing operation state.

As shown in fig. 13 of the drawings, the indication mechanism 15A of the flat valve 10A of the water purifier 2 according to the embodiment of the present invention includes a passive member 151A and an elastic member 152A, wherein the passive member 151A includes a passive end 1511A and a fixed end 1512A extending from the passive end 1511A, wherein the elastic member 152A is disposed at the fixed end 1512A, and the passive end 1511A is disposed toward the knob 80, wherein when the user rotates the movable plate 122A of the flat valve 10A to make the first region 2001A of the second fluid control surface 1220A of the movable plate 122A face the third portion 1203A of the first fluid control surface 1210A of the fixed plate 121A, the passive end 1511A of the passive member 151A of the indication mechanism 15A will block at the stopping member 143A, and when the user increases the force for rotating the knob 80, the stopping member 143A drives the passive end 1511A of the passive member 151A, thereby deforming the elastic member 152A and allowing the knob 80 to continue to rotate, and allowing the movable plate 122A to continue to rotate and the first area 2001A of the second fluid control surface 1220A of the movable plate 122A to face the third portion 1203A of the first fluid control surface 1210A of the fixed plate 121A. Preferably, the elastic member 152A is a spring.

As shown in fig. 13 of the drawings, further, the valve body 11 includes a valve main body 111 and a valve housing 112, wherein the valve housing 112 is provided on an outer surface of the valve main body 111. It is understood that the first limiting member 141A, the second limiting member 142A and the prompting mechanism 15A are respectively disposed on the valve housing 112 of the valve body 11. Further, the valve housing 112 of the valve body 11 comprises an upper shell 1121 and a lower shell 1122, wherein the upper shell 1121 and the lower shell 1122 of the valve housing 112 form a valve cavity 1120 therebetween, wherein the valve cavity 1120 is configured to accommodate the valve body 111 of the valve body 11 therein.

As shown in fig. 18A to 18F and fig. 20A to 21D of the drawings, according to an embodiment of the present invention, the present invention further provides a valve plate assembly of a planar valve 10A for a water purifier 2, which includes a fixed valve plate 121A and a movable valve plate 122A, wherein the fixed valve plate 121A has a first fluid control surface 1210A, the movable valve plate 122A has a second fluid control surface 1220A, wherein the movable valve plate 122A and the fixed valve plate 121A are both disposed in the valve cavity 110, wherein the second fluid control surface 1220A of the movable valve plate 122A is disposed on the first fluid control surface 1210A of the fixed valve plate 121A, and the movable valve plate 122A is disposed to be able to rotate relative to the fixed valve plate 121A, wherein the planar valve 10A has a first channel 101A, a second channel 102A, a third channel 103A, a fourth channel 104A, a, A fifth channel 105A, a sixth channel 106A and a raw water inlet channel 107A, wherein the first channel 101A, the second channel 102A, the third channel 103A, the fourth channel 104A and the raw water inlet channel 107A are respectively disposed on the fixed valve plate 121A and respectively extend from the first fluid control surface 1210A of the fixed valve plate 121A; the fifth channel 105A and the sixth channel 106A are respectively disposed on the movable valve plate 122A and respectively extend from the second fluid control surface 1220A of the movable valve plate 122A, wherein the first channel 101A is communicated with the first opening 1101, the second channel 102A is communicated with the second opening 1102, the third channel 103A is communicated with the third opening 1103, the fourth channel 104A is communicated with the drain opening 1104, the fifth channel 105A is communicated with the raw water inlet channel 107A, and the raw water inlet channel 107A is communicated with the raw water inlet 1105. Preferably, the fifth channel 105A and the sixth channel 106A of the movable valve plate 122A are blind through holes.

It should be noted that most faucet water purifiers, and even all faucet water purifiers in practical use, cannot perform functions other than purification treatment (such as filtration or ultrafiltration) and raw water supply, for example, it is difficult to control back flushing of the filter element 22 of the faucet water purifier. This is related to the structure of the control valve used in the prior faucet water purifier. Because the faucet water purifier is small in size and limited in application occasions, the control valves of most existing faucet water purifiers are simple in structure and cannot control and realize complex functions except for purification treatment (such as filtration or ultrafiltration) of raw water and raw water supply. The control valve 10 (control valve 10A) of the water purifier of the present invention is purposefully designed, and its special structure can be used integrally with a faucet, and at the same time, can control and implement back flushing of the filter element 22 of the water purifier of the present invention.

It is noted that the first, second, third, fourth, fifth and/or sixth are only used herein to name and distinguish between different components (or elements) of the present invention, which in itself does not have any order or number of meanings.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention.

The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. A water purifier, characterized by comprising:

a control valve for controlling the flow of water; and

2. The water purifier as recited in claim 1, wherein the filter unit has a first communication opening and a second communication opening, wherein the first communication opening of the filter unit communicates with the raw water passage of the filter unit, and the second communication opening of the filter unit communicates with the purified water outlet of the filter cartridge.

3. The water purifier as recited in claim 2, wherein the control valve includes a valve body and a valve core, wherein the valve body forms a valve cavity, a first opening, a second opening, a third opening, a raw water inlet and a sewage discharge opening, wherein the valve core is arranged in the valve cavity, wherein the first opening of the valve body is suitable for being communicated with the first communication opening of the filter device, the second opening of the valve body is suitable for being communicated with the second communication opening of the filtering device, the raw water inlet of the valve body is suitable for being communicated with a tap water pipe, when the control valve is at a filtering working position, the valve core of the control valve forms a first communicating channel which is respectively communicated with the first opening of the valve body and the raw water inlet and a second communicating channel which is respectively communicated with the second opening and the third opening of the valve body.

4. The water purifier as recited in claim 3, wherein when the control valve is in a backwashing position, the valve core of the control valve forms a third communicating path respectively communicating with the second opening of the valve body and the raw water inlet and a fourth communicating path respectively communicating with the first opening of the valve body and the drain opening.

5. The water purifier as claimed in claim 3, wherein when the control valve is in a standby operation position, the flow of raw water to the filtering means is cut off by the control valve.

6. The water purifier as claimed in claim 4, wherein when the control valve is in a standby operation position, the flow of raw water to the filtering means is cut off by the control valve.

7. The water purifier as recited in claim 3, wherein the control valve is a flat valve, wherein the valve core comprises a fixed valve plate and a movable valve plate, wherein the fixed valve plate is provided with a first fluid control surface, the movable valve plate is provided with a second fluid control surface, wherein the movable valve plate and the fixed valve plate are both disposed in the valve cavity, the second fluid control surface of the movable valve plate is disposed on the first fluid control surface of the fixed valve plate, and the movable valve plate is disposed to rotate relative to the fixed valve plate, the planar valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, and a sixth channel, the first channel, the second channel, the third channel and the fourth channel are respectively arranged on the fixed valve plate and respectively extend from the first fluid control surface of the fixed valve plate; the fifth channel and the sixth channel are respectively arranged on the movable valve plate and respectively extend from the second fluid control surface of the movable valve plate, wherein the first channel is communicated with the first opening, the second channel is communicated with the second opening, the third channel is communicated with the third opening, the fourth channel is communicated with the sewage discharge opening, and the fifth channel is communicated with the raw water inlet.

8. The water purifier as recited in claim 7, wherein when the flat valve is in a backwashing position, the fifth passage of the flat valve communicates with the second passage to form a third communicating passage communicating with the raw water inlet and the second opening, respectively, and the sixth passage communicates with the first passage and the fourth passage, respectively, to form a fourth communicating passage communicating with the first opening and the drain opening, respectively.

9. The water purifier as claimed in claim 7, wherein the fifth passage of the flat valve is blocked by the fixed valve plate when the flat valve is in a standby operation position.

10. The water purifier as claimed in claim 7, wherein the fourth passage of the flat valve is blocked by the movable valve plate when the flat valve is in the filtering operation position.

11. The water purifier of claim 8, wherein the third channel of the planar valve is blocked by the movable valve plate when the planar valve is in the backwash operation position.

12. The water purifier of claim 8, wherein the first, second, third and fourth passages of the flat valve are blocked by the movable valve plate when the flat valve is in a standby position.

13. The water purifier of claim 7, wherein the first fluid control surface of the stationary plate of the planar valve defines a central portion, an extension portion extending outward from the central portion, and an edge portion extending outward from the extension portion, wherein the first and second passages of the planar valve extend from the edge portion of the first fluid control surface of the stationary plate, the third channel and the fourth channel extend from the extension part of the first fluid control surface of the fixed valve plate respectively, the second fluid control surface of the movable plate of the planar valve defines a central region, an extension region extending outwardly from the central region, and an edge region extending outwardly from the extension region, the fifth channel of the planar valve extends from the edge region of the second fluid control surface of the movable valve plate, the sixth channel extends from the extension region and the edge region of the second fluid control surface of the movable valve plate.

14. The water purifier as recited in claim 13, wherein the first passage is disposed outside the fourth passage, and the second passage is disposed outside the third passage.

15. The water purifier of claim 13, wherein the first, second, third and fourth passages of the planar valve are spaced apart from each other at the first fluid control surface of the stationary plate; the fifth channel and the sixth channel of the flat valve are separately arranged on the second fluid control surface of the movable valve plate.

16. The water purifier as recited in claim 7, 8, 9, 10, 11, 12, 13, 14 or 15, wherein the raw water inlet and the fifth channel are respectively connected to the valve chamber, and the sixth channel of the movable valve plate is a blind through hole.

17. The water purifier as claimed in claim 7, 8, 9, 10, 11 or 12, wherein the first fluid control surface of the fixed valve plate has a central portion, an extension extending outwardly from the central portion and an edge portion extending outwardly from the extension, and the second fluid control surface of the movable valve plate has a central region, an extension region extending outwardly from the central region and an edge region extending outwardly from the extension region, wherein the extension and the edge portion of the first fluid control surface are equally divided into a first portion, a second portion, a third portion and a fourth portion, and the extension and the edge region of the second fluid control surface are equally divided into a first region, a second region, a third region and a fourth region; the first channel extends downward from the first portion of the first fluid control surface of the fixed valve plate, the second channel extends downward from the third portion of the first fluid control surface of the fixed valve plate, the third channel extends downward from the third portion of the first fluid control surface of the fixed valve plate, the fourth channel extends downward from the first portion of the first fluid control surface of the fixed valve plate, the fifth channel extends upward from the first area of the second fluid control surface of the movable valve plate, and the sixth channel extends upward from the third area of the second fluid control surface of the movable valve plate.

18. The water purifier as recited in claim 3, wherein the control valve is a flat valve, wherein the valve core further comprises a fixed valve plate and a movable valve plate, wherein the fixed valve plate is provided with a first fluid control surface, the movable valve plate is provided with a second fluid control surface, wherein the movable valve plate and the fixed valve plate are both disposed in the valve cavity, the second fluid control surface of the movable valve plate is disposed on the first fluid control surface of the fixed valve plate, and the movable valve plate is disposed to rotate relative to the fixed valve plate, the plane valve is provided with a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a raw water inlet channel, the first channel, the second channel, the third channel, the fourth channel and the raw water inlet channel are respectively arranged on the fixed valve plate and respectively extend from the first fluid control surface of the fixed valve plate; the fifth channel and the sixth channel are respectively arranged on the movable valve plate and respectively extend from the second fluid control surface of the movable valve plate, wherein the first channel is communicated with the first opening, the second channel is communicated with the second opening, the third channel is communicated with the third opening, the fourth channel is communicated with the sewage discharge opening, the raw water inlet channel is respectively communicated with the fifth channel and the raw water inlet, wherein when the plane valve is at the filtering working position, the fifth channel of the plane valve is respectively communicated with the raw water inlet channel and the first channel, thereby forming the first communicating channel respectively communicated with the raw water inlet and the first opening, the sixth channel of the planar valve is communicated with the second channel and the third channel respectively, so that a second communication channel communicated with the second opening and the third opening respectively is formed.

19. The water purifier as recited in claim 18, wherein when the flat valve is in a backwashing position, the fifth passage of the flat valve is in communication with the raw water inlet passage and the second passage, respectively, to form a third communication passage in communication with the raw water inlet and the second opening, respectively, and the sixth passage is in communication with the first passage and the fourth passage, respectively, to form a fourth communication passage in communication with the first opening and the drain opening, respectively.

20. The water purifier as claimed in claim 18, wherein the fifth passage of the flat valve is in communication with the raw water inlet passage when the flat valve is in a standby operation position.

21. The water purifier as recited in claim 18, wherein the fourth passage of the flat valve is blocked by the movable valve plate when the flat valve is in the filtering operation position.

22. The water purifier of claim 19, wherein the third channel of the planar valve is blocked by the movable valve plate when the planar valve is in the backwash operating position.

23. The water purifier of claim 19, wherein the first, second, third and fourth passages of the flat valve are blocked by the movable valve plate when the flat valve is in a standby position.

24. The water purifier as recited in claim 18, wherein the first fluid control surface of the stationary plate of the planar valve forms a center portion, an extension portion extending outward from the center portion, and an edge portion extending outward from the extension portion, wherein the first and second passages of the planar valve respectively extend from the extension portion of the first fluid control surface of the stationary plate, the third and fourth passages respectively extend from the edge portion of the first fluid control surface of the stationary plate, the raw water inlet passage extends from the center portion of the first fluid control surface of the stationary plate, the second fluid control surface of the movable plate of the planar valve forms a center area, an extension area extending outward from the center area, and an edge area extending outward from the extension area, the fifth passage of the planar valve extends from the extension area and the center area of the second fluid control surface of the movable plate, the sixth channel extends from the extension region and the edge region of the second fluid control surface of the movable valve plate.

25. The water purifier of claim 24, wherein the first, second, third, fourth and raw water inlet passages of the flat valve are separately provided at the first fluid control surface of the fixed valve plate; the fifth channel and the sixth channel of the flat valve are separately arranged on the second fluid control surface of the movable valve plate.

26. The water purifier as recited in claim 24, wherein the first passage is provided inside the fourth passage, and the second passage is provided inside the third passage.

27. The water purifier as recited in claim 18, 19, 20, 21, 22, 23, 24, 25 or 26, wherein the fifth passage and the sixth passage of the movable valve plate are blind through holes.

28. The water purifier as claimed in claim 18, 19, 20, 21, 22 or 23, wherein the first fluid control surface of the fixed valve plate has a central portion, an extension extending outwardly from the central portion and an edge portion extending outwardly from the extension, and the second fluid control surface of the movable valve plate has a central region, an extension region extending outwardly from the central region and an edge region extending outwardly from the extension region, wherein the extension and the edge portion of the first fluid control surface are equally divided into a first portion, a second portion, a third portion and a fourth portion, and the extension and the edge region of the second fluid control surface are equally divided into a first region, a second region, a third region and a fourth region; the first channel extends downward from the first portion of the first fluid control surface of the fixed valve plate, the second channel extends downward from the third portion of the first fluid control surface of the fixed valve plate, the third channel extends downward from the third portion of the first fluid control surface of the fixed valve plate, the fourth channel extends downward from the first portion of the first fluid control surface of the fixed valve plate, the raw water inlet channel extends downward from the central portion of the first fluid control surface of the fixed valve plate, the fifth channel extends upward from the first area and the central area of the second fluid control surface of the movable valve plate, and the sixth channel extends upward from the third area of the second fluid control surface of the movable valve plate.

29. The water purifier as recited in claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25 or 26, wherein the raw water passage is formed at one side of the filter element, and the purified water outlet is formed at an opposite side of the filter element.

30. The water purifier as claimed in claim 7, 8, 11, 13, 14 or 15, wherein the second channel and the third channel extend along the first fluid control surface, and the second channel and the third channel extend in the same direction, and when the planar valve is at a standby working position, the fifth channel and the sixth channel of the planar valve are both blocked by the first fluid control surface of the fixed valve plate; when the plane valve is in the filtering working position, the fifth channel of the plane valve is coincided with the first channel, and the sixth channel is coincided with the second channel and the third channel.

31. The water purifier as claimed in claim 13, 14 or 15, wherein the second channel and the third channel extend along the first fluid control surface, and the extending directions of the second channel and the third channel are the same, and when the flat valve is at a standby working position, the fifth channel and the sixth channel of the flat valve are both blocked by the first fluid control surface of the fixed valve plate; when the planar valve is located at the filtering working position, the fifth channel of the planar valve coincides with the first channel, and the sixth channel coincides with the second channel and the third channel, wherein the second channel and the third channel both extend around the central portion of the first fluid control surface of the fixed valve plate in an arc shape, and the second channel and the third channel correspond to the same central angle.

32. The water purifier of claim 30 wherein the first flow control surface is circular and the second and third passages extend tangentially to the first flow control surface.

33. The water purifier as claimed in claim 13, 14 or 15, wherein the second channel and the third channel extend along the first fluid control surface, and the extending directions of the second channel and the third channel are the same, and when the flat valve is at a standby working position, the fifth channel and the sixth channel of the flat valve are both blocked by the first fluid control surface of the fixed valve plate; when the flat valve is located at the filtering working position, the fifth channel of the flat valve coincides with the first channel, and the sixth channel coincides with the second channel and the third channel, wherein the first channel, the second channel and the third channel extend around the central portion of the first fluid control surface of the fixed valve plate in an arc shape, the fifth channel and the sixth channel extend around the central area of the second fluid control surface of the movable valve plate in an arc shape, and the central angles corresponding to the first channel, the second channel, the third channel, the fifth channel and the sixth channel are the same in size.

34. The water purifier as recited in claim 18, 19, 21, 22, 24, 25 or 26, wherein said second channel and said third channel extend along said first fluid control surface, and said second channel and said third channel extend in the same direction, and when said flat valve is at a standby working position, said fifth channel of said flat valve is only communicated with said raw water inlet channel, and said sixth channel is blocked by said first fluid control surface of said fixed valve plate; when the plane valve is at the filtering working position, the fifth channel of the plane valve is coincided with the raw water inlet channel and the first channel, and the sixth channel is coincided with the second channel and the third channel.

35. The water purifier as claimed in claim 24, 25 or 26, wherein the second and third passages extend along the first fluid control surface, and the second and third passages extend in the same direction, and when the flat valve is at a standby working position, the fifth passage of the flat valve is only communicated with the raw water inlet passage, and the sixth passage is blocked by the first fluid control surface of the fixed valve plate; when the plane valve is located at the filtering working position, the fifth channel of the plane valve coincides with the raw water inlet channel and the first channel, the sixth channel coincides with the second channel and the third channel, the second channel and the third channel both extend around the center of the first fluid control surface of the fixed valve plate in an arc shape, and the second channel and the third channel correspond to the same central angle.

36. The water purifier of claim 34 wherein the first flow control surface is circular and the second and third passages extend tangentially to the first flow control surface.

37. The water purifier as claimed in claim 24, 25 or 26, wherein the second and third passages extend along the first fluid control surface, and the second and third passages extend in the same direction, and when the flat valve is at a standby working position, the fifth passage of the flat valve is only communicated with the raw water inlet passage, and the sixth passage is blocked by the first fluid control surface of the fixed valve plate; when the flat valve is located at the filtering working position, the fifth channel of the flat valve coincides with the raw water inlet channel and the first channel, and the sixth channel coincides with the second channel and the third channel, wherein the first channel, the second channel and the third channel extend around the central part of the first fluid control surface of the fixed valve plate in an arc shape, the fifth channel and the sixth channel extend around the central area of the second fluid control surface of the movable valve plate in an arc shape, and the central angles corresponding to the first channel, the second channel, the third channel, the fifth channel and the sixth channel are the same in size.

38. The water purifier according to claims 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25, or 26, further comprising an outlet elbow, wherein the outlet elbow communicates with the third opening of the valve body.

39. The water purifier as recited in claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25 or 26, further comprising a faucet, wherein the control valve and the faucet are adapted to communicate with a tap water pipe.

40. The water purifier as recited in claims 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25 or 26, further comprising a tap and a connection pipe, wherein the connection pipe forms a raw water path adapted to communicate with a raw water source, wherein the control valve and the tap are connected to the connection pipe, respectively, and the raw water inlet of the control valve and the cold water pipe of the tap communicate with the raw water path, respectively.

41. The water purifier of claim 40, wherein the connection pipe further forms a first through opening adapted to communicate with the raw water inlet and the raw water path of the control valve, respectively, a second through opening adapted to communicate with the cold water pipe of the faucet and the raw water path, respectively, and a third through opening adapted to communicate with the raw water path and the raw water source, respectively.

42. The water purifier of claim 41, wherein the connection pipe further forms a first connection end, a second connection end, and a third connection end, wherein the first connection end of the connection pipe forms the first conduction opening, the second connection end forms the second conduction opening, and the third connection end forms the third conduction opening, wherein the control valve is connected to the first connection end of the connection pipe, and the water tap is connected to the second connection end of the connection pipe.

43. The water purifier of claim 40, wherein the faucet further comprises a hot water pipe.

44. The water purifier as recited in claim 40, wherein the cold water pipe and the connection pipe are integrally formed.

45. The water purifier of claim 40 wherein the faucet is an electrically heated faucet.

46. The water purifier as recited in claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25 or 26, further comprising a brush, wherein the brush comprises a brush body, wherein the brush body is rotatably disposed between the housing and the filter element.

47. The water purifier as recited in claim 46, wherein the brush body includes a bristle holder and a set of bristles, wherein the bristles of the brush body of the brush are disposed on the bristle holder and the bristles are disposed toward the filter element.

48. The water purifier of claim 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25 or 26, wherein the control valve further comprises a driving member, wherein the driving member is configured to drive the movable valve plate of the planar valve to rotate relative to the fixed valve plate.

49. A control valve for a water purifier, comprising:

a valve body; and

50. The control valve as claimed in claim 49, wherein the spool of the control valve forms a third communication passage communicating with the second opening of the valve body and the raw water inlet, respectively, and a fourth communication passage communicating with the first opening of the valve body and the drain opening, respectively, when the control valve is in a backwash operation position.

51. The control valve as claimed in claim 49 wherein the control valve is adapted to prevent raw water from flowing through the control valve when the control valve is in a standby operating position.

52. The control valve as claimed in claim 50 wherein the control valve is adapted to prevent raw water from flowing through the control valve when the control valve is in a standby operating position.

53. The control valve of claim 49, wherein the control valve is a planar valve, wherein the valve core comprises a fixed valve plate and a movable valve plate, wherein the fixed valve plate is provided with a first fluid control surface, the movable valve plate is provided with a second fluid control surface, wherein the movable valve plate and the fixed valve plate are both disposed in the valve cavity, the second fluid control surface of the movable valve plate is disposed on the first fluid control surface of the fixed valve plate, and the movable valve plate is disposed to rotate relative to the fixed valve plate, the planar valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, and a sixth channel, the first channel, the second channel, the third channel and the fourth channel are respectively arranged on the fixed valve plate and respectively extend from the first fluid control surface of the fixed valve plate; the fifth channel and the sixth channel are respectively arranged on the movable valve plate and respectively extend from the second fluid control surface of the movable valve plate, wherein the first channel is communicated with the first opening, the second channel is communicated with the second opening, the third channel is communicated with the third opening, the fourth channel is communicated with the sewage discharge opening, and the fifth channel is communicated with the raw water inlet.

54. The control valve as claimed in claim 53, wherein the fifth passage of the planar valve communicates with the second passage when the planar valve is in a backwash operation position to form a third communicating passage communicating with the raw water inlet and the second opening, respectively, and the sixth passage communicates with the first passage and the fourth passage, respectively, to form a fourth communicating passage communicating with the first opening and the drain opening, respectively.

55. The control valve as claimed in claim 53, wherein the fifth passage of the planar valve is blocked by the fixed valve plate when the planar valve is in a standby operation position.

56. The control valve of claim 53, wherein the fourth passage of the planar valve is blocked by the movable valve plate when the planar valve is in the filtering operation position.

57. The control valve of claim 54, wherein the third passageway of the planar valve is blocked by the movable valve plate when the planar valve is in the backwash operating position.

58. The control valve of claim 54, wherein the first, second, third and fourth passages of the planar valve are blocked by the movable valve plate when the planar valve is in a standby operating position.

59. The control valve of claim 53, wherein the first fluid control surface of the stationary plate of the planar valve defines a central portion, an extension extending outwardly from the central portion, and an edge portion extending outwardly from the extension, wherein the first and second passages of the planar valve extend from the edge portion of the first fluid control surface of the stationary plate, the third channel and the fourth channel extend from the extension part of the first fluid control surface of the fixed valve plate respectively, the second fluid control surface of the movable plate of the planar valve defines a central region, an extension region extending outwardly from the central region, and an edge region extending outwardly from the extension region, the fifth channel of the planar valve extends from the edge region of the second fluid control surface of the movable valve plate, the sixth channel extends from the extension region and the edge region of the second fluid control surface of the movable valve plate.

60. The control valve of claim 59, wherein the first passage is disposed outside of the fourth passage and the second passage is disposed outside of the third passage.

61. The control valve of claim 59, wherein the first, second, third and fourth passages of the planar valve are spaced apart at the first fluid control surface of the stationary plate; the fifth channel and the sixth channel of the flat valve are separately arranged on the second fluid control surface of the movable valve plate.

62. The control valve as claimed in claim 53, 54, 55, 56, 57, 58, 59, 60 or 61, wherein the raw water inlet and the fifth channel are respectively communicated with the valve chamber, and the sixth channel of the movable valve plate is a blind through hole.

63. The control valve of claim 53, 54, 55, 56, 57 or 58, wherein the first fluid control surface of the fixed valve plate has a central portion, an extension extending outwardly from the central portion and an edge portion extending outwardly from the extension, and the second fluid control surface of the movable valve plate has a central area, an extension extending outwardly from the central area and an edge area extending outwardly from the extension, wherein the extension and the edge portion of the first fluid control surface are equally divided into a first portion, a second portion, a third portion and a fourth portion, and the extension and the edge area of the second fluid control surface are equally divided into a first area, a second area, a third area and a fourth area; the first channel extends downward from the first portion of the first fluid control surface of the fixed valve plate, the second channel extends downward from the third portion of the first fluid control surface of the fixed valve plate, the third channel extends downward from the third portion of the first fluid control surface of the fixed valve plate, the fourth channel extends downward from the first portion of the first fluid control surface of the fixed valve plate, the fifth channel extends upward from the first area of the second fluid control surface of the movable valve plate, and the sixth channel extends upward from the third area of the second fluid control surface of the movable valve plate.

64. The control valve of claim 49, wherein the control valve is a planar valve, wherein the valve core further comprises a fixed valve plate and a movable valve plate, wherein the fixed valve plate is provided with a first fluid control surface, the movable valve plate is provided with a second fluid control surface, wherein the movable valve plate and the fixed valve plate are both disposed in the valve cavity, the second fluid control surface of the movable valve plate is disposed on the first fluid control surface of the fixed valve plate, and the movable valve plate is disposed to rotate relative to the fixed valve plate, the plane valve is provided with a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a raw water inlet channel, the first channel, the second channel, the third channel, the fourth channel and the raw water inlet channel are respectively arranged on the fixed valve plate and respectively extend from the first fluid control surface of the fixed valve plate; the fifth channel and the sixth channel are respectively arranged on the movable valve plate and respectively extend from the second fluid control surface of the movable valve plate, wherein the first channel is communicated with the first opening, the second channel is communicated with the second opening, the third channel is communicated with the third opening, the fourth channel is communicated with the sewage discharge opening, the raw water inlet channel is respectively communicated with the fifth channel and the raw water inlet, wherein when the plane valve is at the filtering working position, the fifth channel of the plane valve is respectively communicated with the raw water inlet channel and the first channel, thereby forming the first communicating channel respectively communicated with the raw water inlet and the first opening, the sixth channel of the planar valve is communicated with the second channel and the third channel respectively, so that a second communication channel communicated with the second opening and the third opening respectively is formed.

65. The control valve as claimed in claim 64, wherein the fifth passage of the planar valve communicates with the raw water inlet passage and the second passage, respectively, when the planar valve is in a backwash operation position, thereby forming a third communicating passage communicating with the raw water inlet and the second opening, respectively, and the sixth passage communicates with the first passage and the fourth passage, respectively, thereby forming a fourth communicating passage communicating with the first opening and the drain opening, respectively.

66. The control valve as claimed in claim 64, wherein the fifth passage of the flat valve is communicated with the raw water inlet passage when the flat valve is in a standby operation position.

67. The control valve of claim 64, wherein the fourth passageway of the planar valve is blocked by the movable valve plate when the planar valve is in the filter operating position.

68. The control valve of claim 65, wherein the third passage of the planar valve is blocked by the movable valve plate when the planar valve is in the backwash operating position.

69. The control valve of claim 65, wherein the first, second, third and fourth passages of the planar valve are blocked by the movable valve plate when the planar valve is in a standby operating position.

70. The control valve of claim 64, wherein the first fluid control surface of the stationary plate of the planar valve defines a central portion, an extension portion extending outwardly from the central portion, and an edge portion extending outwardly from the extension portion, wherein the first and second passages of the planar valve each extend from the extension portion of the first fluid control surface of the stationary plate, the third and fourth passages each extend from the edge portion of the first fluid control surface of the stationary plate, the raw water inlet passage extends from the central portion of the first fluid control surface of the stationary plate, the second fluid control surface of the movable plate of the planar valve defines a central area, an extension area extending outwardly from the central area, and an edge area extending outwardly from the extension area, and the fifth passage of the planar valve extends from the extension area and the central area of the second fluid control surface of the movable plate, the sixth channel extends from the extension region and the edge region of the second fluid control surface of the movable valve plate.

71. The control valve as claimed in claim 70, wherein the first, second, third, fourth and raw water inlet passages of the flat valve are separately provided at the first fluid control surface of the stationary plate; the fifth channel and the sixth channel of the flat valve are separately arranged on the second fluid control surface of the movable valve plate.

72. The control valve of claim 70, wherein the first passage is disposed inboard of the fourth passage and the second passage is disposed inboard of the third passage.

73. The control valve as claimed in claim 64, 65, 66, 67, 68, 69, 70, 71 or 72 wherein the fifth passage and the sixth passage of the movable valve plate are blind through holes.

74. The control valve of claim 64, 65, 66, 67, 68 or 69, wherein the first fluid control surface of the fixed valve plate has a central portion, an extension extending outwardly from the central portion and an edge portion extending outwardly from the extension, and the second fluid control surface of the movable valve plate has a central area, an extension extending outwardly from the central area and an edge area extending outwardly from the extension, wherein the extension and the edge portion of the first fluid control surface are equally divided into a first portion, a second portion, a third portion and a fourth portion, and the extension and the edge area of the second fluid control surface are equally divided into a first area, a second area, a third area and a fourth area; the first channel extends downward from the first portion of the first fluid control surface of the fixed valve plate, the second channel extends downward from the third portion of the first fluid control surface of the fixed valve plate, the third channel extends downward from the third portion of the first fluid control surface of the fixed valve plate, the fourth channel extends downward from the first portion of the first fluid control surface of the fixed valve plate, the raw water inlet channel extends downward from the central portion of the first fluid control surface of the fixed valve plate, the fifth channel extends upward from the first area and the central area of the second fluid control surface of the movable valve plate, and the sixth channel extends upward from the third area of the second fluid control surface of the movable valve plate.

75. The control valve as claimed in claim 53, 54, 57, 59, 60 or 61 wherein the second and third passages extend along the first fluid control surface and are in the same direction, and when the planar valve is in a standby position, the fifth and sixth passages of the planar valve are blocked by the first fluid control surface of the fixed valve plate; when the plane valve is in the filtering working position, the fifth channel of the plane valve is coincided with the first channel, and the sixth channel is coincided with the second channel and the third channel.

76. The control valve as claimed in claim 59, 60 or 61 wherein the second and third passages extend along the first fluid control surface, and the second and third passages extend in the same direction, and when the planar valve is in a standby position, the fifth and sixth passages of the planar valve are blocked by the first fluid control surface of the fixed valve plate; when the planar valve is located at the filtering working position, the fifth channel of the planar valve coincides with the first channel, and the sixth channel coincides with the second channel and the third channel, wherein the second channel and the third channel both extend around the central portion of the first fluid control surface of the fixed valve plate in an arc shape, and the second channel and the third channel correspond to the same central angle.

77. The control valve of claim 75 wherein the first flow control surface is circular and the second and third passages extend tangential to the first flow control surface.

78. The control valve as claimed in claim 59, 60 or 61 wherein the second and third passages extend along the first fluid control surface, and the second and third passages extend in the same direction, and when the planar valve is in a standby position, the fifth and sixth passages of the planar valve are blocked by the first fluid control surface of the fixed valve plate; when the flat valve is located at the filtering working position, the fifth channel of the flat valve coincides with the first channel, and the sixth channel coincides with the second channel and the third channel, wherein the first channel, the second channel and the third channel extend around the central portion of the first fluid control surface of the fixed valve plate in an arc shape, the fifth channel and the sixth channel extend around the central area of the second fluid control surface of the movable valve plate in an arc shape, and the central angles corresponding to the first channel, the second channel, the third channel, the fifth channel and the sixth channel are the same in size.

79. The control valve as claimed in claim 64, 65, 67, 68, 70, 71 or 72, wherein the second and third passages extend along the first fluid control surface, and the second and third passages extend in the same direction, and when the flat valve is at a standby working position, the fifth passage of the flat valve is only communicated with the raw water inlet passage, and the sixth passage is blocked by the first fluid control surface of the fixed valve plate; when the plane valve is at the filtering working position, the fifth channel of the plane valve is coincided with the raw water inlet channel and the first channel, and the sixth channel is coincided with the second channel and the third channel.

80. The control valve as claimed in claim 70, 71 or 72, wherein the second and third passages extend along the first fluid control surface, and the second and third passages extend in the same direction, and when the flat valve is at a standby working position, the fifth passage of the flat valve is only communicated with the raw water inlet passage, and the sixth passage is blocked by the first fluid control surface of the fixed valve plate; when the plane valve is located at the filtering working position, the fifth channel of the plane valve coincides with the raw water inlet channel and the first channel, the sixth channel coincides with the second channel and the third channel, the second channel and the third channel both extend around the center of the first fluid control surface of the fixed valve plate in an arc shape, and the second channel and the third channel correspond to the same central angle.

81. The control valve of claim 79 wherein the first flow control surface is circular and the second and third passages extend tangential to the first flow control surface.

82. The control valve as claimed in claim 70, 71 or 72, wherein the second and third passages extend along the first fluid control surface, and the second and third passages extend in the same direction, and when the flat valve is at a standby working position, the fifth passage of the flat valve is only communicated with the raw water inlet passage, and the sixth passage is blocked by the first fluid control surface of the fixed valve plate; when the flat valve is located at the filtering working position, the fifth channel of the flat valve coincides with the raw water inlet channel and the first channel, and the sixth channel coincides with the second channel and the third channel, wherein the first channel, the second channel and the third channel extend around the central part of the first fluid control surface of the fixed valve plate in an arc shape, the fifth channel and the sixth channel extend around the central area of the second fluid control surface of the movable valve plate in an arc shape, and the central angles corresponding to the first channel, the second channel, the third channel, the fifth channel and the sixth channel are the same in size.

83. The control valve of claim 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 65, 66, 67, 68, 69, 70, 71, or 72, further comprising a drive assembly, wherein the drive assembly is configured to drive the movable plate of the planar valve to rotate relative to the fixed plate.