CN208200355U - A kind of water purifier - Google Patents

Abstract

The utility model discloses a kind of water purifiers, including water tank, the water tank includes tank body and cover assembly, cover assembly is detachably connected to tank body upper end, and tank base was provided with the mouth of a river, and cover assembly includes upper cover and air pump, first through hole is provided on upper lid, the outlet side of air pump is connected to first through hole, and under the action of air pump, the water in tank body is flowed out from the mouth of a river of crossing.The water tank can not only obtain biggish water flow, but also no longer using precharge of gas as back pressure driving water outflow, to will not have an impact to the water efficiency processed of water purifier, moreover, reducing the operating pressure in water tank, avoid the risk of leak.Cover assembly is detachably connected with tank body upper end, and tank base was provided with the mouth of a river, is facilitated the cleaning and blowdown of water tank, is improved the effluent quality of water tank.

Description

Water purifier

Technical Field

The utility model relates to a drinking water treatment facilities field, concretely relates to purifier.

Background

In the prior art, a water storage tank used in a water purifier generally has types of a pressure barrel, a water tank, a water bag and the like. The pressure barrel type water storage tank adopts a mode of pre-charging gas inside to provide outlet back pressure for outlet water of the pressure barrel so as to obtain higher outlet water flow. But the existence of backpressure has reduced the system water efficiency of purifier in the pressure vessel, and simultaneously, the backpressure makes pressure vessel inside operating pressure great, appears the risk that the pressure vessel leaked easily, and moreover, current pressure vessel is not convenient for wash, has influenced quality of water. The water tank type water storage tank adopts the gravity of water to promote water outlet, the water outlet speed is slow, and the existing water tank is usually mounted on a wall in a hanging way, so that the use of the water purifier is limited. The water bag type water storage tank can promote water to flow out by adopting the gravity of water or pump the water. The diaphragm pump is adopted to pump out water, so that secondary pollution to water quality exists, and the service life of the water bag is limited, so that the service life of the water purifier is shortened.

Therefore, it is an urgent technical problem to provide a water storage tank for a water purifier which has no back pressure, large water outlet flow and is convenient to clean.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a water purifier to realize that the storage water tank does not have the backpressure in the water purifier, the water flow is big and convenient abluent purpose.

In order to solve the technical problem, the utility model provides a water purifier, including the storage water tank, the storage water tank is including a jar body and upper cover subassembly, its characterized in that, upper cover subassembly detachably connects in a jar body upper end, the jar body is provided with the mouth of a river, the upper cover subassembly includes the upper cover, on cover and be provided with first through-hole, the water purifier is equipped with the air pump with the storage water tank intercommunication, the end and the first through-hole intercommunication of giving vent to anger of air pump under the effect of air pump, water in the jar body is followed water outlet flows.

The embodiment of the utility model provides an in the storage water tank, under the effect of air pump, the water in the jar body flows from crossing the water gap, not only can obtain satisfied water flow, no longer adopts the precharge gas to flow as backpressure drive water moreover to can not exert an influence to the system water efficiency of purifier, in addition, reduced the operating pressure in the storage water tank, avoided the risk of leaking. Can dismantle with jar body upper end through making the upper cover subassembly to be connected, jar body bottom is provided with the mouth of a river to, when jar body needs to wash, alright pull down the upper cover subassembly and wash the jar body, wash the water outlet discharge that produces can follow jar body bottom, just so made things convenient for the washing and the blowdown of storage water tank, improved the play water quality of storage water tank. Furthermore, the utility model discloses a storage water tank can install in suitable position as required for the range of application of storage water tank is wider.

Optionally, the upper cover assembly further comprises a diaphragm inner container located in the water storage tank, the upper end of the diaphragm inner container is connected with the upper cover, the air outlet end of the air pump is communicated into the diaphragm inner container through the first through hole, and the diaphragm inner container expands to drive water in the tank body to flow out of the water passing opening under the action of the air pump.

According to the water storage tank, water outlet backpressure is generated in the water storage tank by inflating the diaphragm liner, so that the direct contact between external air and water in the water storage tank can be avoided, secondary pollution to the water is avoided, and the water quality in the water storage tank is ensured.

Optionally, the upper cover comprises a cover body and a pressing ring, a second through hole is formed in the cover body, a first rib body protruding towards the inside of the tank body is arranged along the circumferential direction of the second through hole, the diaphragm liner penetrates through the second through hole and is arranged inside the water storage tank, an open part is arranged at the upper end of the diaphragm liner, the pressing ring comprises a crimping body and a second rib body arranged on the crimping body and protruding towards the inside of the tank body, the second rib body is sleeved in the open part and presses the open part onto the inner side wall of the first rib body, and the first through hole is formed in the crimping body; or,

the upper cover comprises a cover body and a pressing ring, a second through hole is formed in the cover body, the diaphragm liner penetrates through the second through hole and is arranged inside the water storage tank, an open portion is formed in the upper end of the diaphragm liner, the pressing ring comprises a pressing connection body, the pressing connection body presses the open portion to the upper surface of the cover body, and the first through hole is formed in the pressing connection body.

This characteristic provides the assembly structure of the lid of two kinds of differences, clamping ring and diaphragm inner bag, all makes diaphragm inner bag be connected to on the upper cover inclosed, has avoided diaphragm inner bag port gas leakage, has guaranteed the play water performance of storage water tank.

Optionally, the upper cover assembly further comprises an exhaust valve, the upper cover is further provided with a third through hole, the exhaust valve is communicated with the diaphragm inner container through the third through hole, and in the water production process of the water purifier, the exhaust valve exhausts gas in the diaphragm inner container to enable the diaphragm inner container to contract.

With the structure, when the water purifier produces water, the exhaust valve exhausts gas in the diaphragm liner, so that the backpressure generated by the diaphragm liner is eliminated, and the water production efficiency of the water purifier cannot be influenced. The air valve discharges the air in the diaphragm inner container, so that the water produced by the water purifier can smoothly enter the water storage tank from the water inlet of the tank body, and the diaphragm inner container is continuously contracted under the extrusion of the water body, so that the water storage tank can be filled with the water body. Therefore, the arrangement of the diaphragm liner can not reduce the water storage capacity of the water storage tank.

Optionally, the upper cover assembly further comprises a three-way valve, a first end of the three-way valve is communicated with the first through hole, a second end of the three-way valve is communicated with the air outlet end of the air pump, a third end of the three-way valve is communicated with the atmosphere, when the water storage tank discharges water, the first end and the second end of the three-way valve are communicated, so that the air outlet end of the air pump is communicated to the diaphragm liner through the first through hole, and in the water production process of the water purification machine, the first end and the third end of the three-way valve are communicated to discharge gas in the diaphragm liner, so that the diaphragm liner contracts.

The three-way valve plays the effect of intercommunication air pump and diaphragm inner bag, still is used for exhausting for diaphragm inner bag simultaneously, no longer need set up the third through-hole that is used for connecting discharge valve in addition. The three-way valve is adopted, and another connecting structure for controlling the expansion and contraction of the diaphragm inner container is provided.

Optionally, the upper cover assembly further comprises a pressure detection device for detecting the pressure in the diaphragm liner, and the air pump works according to a signal of the pressure detection device in the water outlet process of the water storage tank.

The pressure detection device can monitor the pressure in the diaphragm inner container in real time, and the user experience of the water storage tank is improved.

Optionally, the water storage tank further comprises a pressure release valve, and when the pressure in the water storage tank reaches an opening pressure of the pressure release valve, the pressure release valve is opened to release the pressure in the water storage tank.

Another structural means for controlling the pressure in the storage tank is provided.

Optionally, the inner diameter of an opening at the upper end of the tank body is 60 mm-150 mm, and the height of the tank body is 150 mm-350 mm.

When jar body upper end opening internal diameter is less than 60mm, it is internal that human hand is difficult to get into jar through the opening, has increased jar abluent degree of difficulty of body, and when jar body upper end opening internal diameter was greater than 150mm, the too big installation of being connected of upper cover subassembly and jar body of being unfavorable for of opening. When the height of the tank body is less than 150mm, the solvent in the tank body is too small, the capacity of the water storage tank is reduced, and when the height of the tank body is more than 350mm, the arm of a human body is difficult to contact the bottom of the tank body, so that the tank body is not easy to clean, and the difficulty in cleaning the tank body is increased.

Optionally, the side wall of the can body is transparent; or, a transparent visual window is arranged on the side wall of the tank body.

By means of the water storage tank, a user can observe liquid level change in the water storage tank, and user experience is improved.

Optionally, the water storage tank further comprises a liquid level detection device, and when the liquid level detection device detects that the liquid level in the water storage tank reaches a liquid level threshold value, the water purification machine communicated with the water storage tank stops water production.

The liquid level detection device can prevent the water in the water storage tank from being overfilled, prevent water flow from overflowing and ensure the use safety of the water storage tank.

The utility model discloses storage water tank for water purifier, under the effect of air pump, the water in the jar body flows from crossing the water gap, not only can satisfy user's various water flow demands, obtains satisfied water flow, no longer adopts the precharge gas to flow as backpressure drive water moreover to can not exert an influence to the system water efficiency of purifier, in addition, reduced the operating pressure in the storage water tank, avoided the risk of leaking. Can dismantle with jar body upper end through making the upper cover subassembly to be connected, jar body bottom is provided with the mouth of a river to, when jar body needs to wash, alright pull down the upper cover subassembly and wash the jar body, wash the water outlet discharge that produces can follow jar body bottom, just so made things convenient for the washing and the blowdown of storage water tank, improved the play water quality of storage water tank. Furthermore, the utility model discloses a storage water tank can install in suitable position as required for the range of application of storage water tank is wider.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

FIG. 1 is a schematic structural view of a water storage tank for a water purifier according to a first embodiment of the present invention;

FIG. 2 is a schematic structural view of an upper cover assembly of a water storage tank according to a first embodiment of the present invention;

FIG. 3a is a schematic cross-sectional view of the cover of FIG. 2;

FIG. 3b is a schematic top view of the cover of FIG. 2;

FIG. 3c is a schematic perspective view of the cover in FIG. 2;

FIG. 4a is a schematic cross-sectional view of the pressure ring of FIG. 2;

FIG. 4b is a schematic top view of the pressure ring of FIG. 2;

FIG. 5 is a schematic perspective view of the diaphragm bladder of FIG. 2;

FIG. 6 is a schematic structural view of an upper cover assembly of a water storage tank according to a second embodiment of the present invention;

FIG. 7 is a schematic structural view of a water storage tank according to a third embodiment of the present invention;

fig. 8 is a schematic structural view of a water storage tank for a water purifier according to a fourth embodiment of the present invention.

Description of reference numerals:

10, a tank body;	11-a water outlet;	20 — an upper cover assembly;
			21-upper cover;	22-an air pump;	23-diaphragm liner;
24-a cover body;	25, pressing a ring;	26-three-way valve;
			30 — a first via;	40-a third via;	50-liquid level detection device;
231 — an open part;	232-via hole;	241-a second via;
			242 — a first tendon;	243-internal threaded column;	244 — a bump;
251-crimping body;	252 — a second tendon;	253-fixing holes;
			261 — a first end;	262-a second end;	263 — third end.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

In order to realize that the storage water tank does not have the backpressure in the water purifier, go out the water flow big and convenient abluent purpose, the embodiment of the utility model provides a water purifier, including the storage water tank, general, the demand of water purifier in order to satisfy the quick water intaking of user often sets up the storage water tank at the pure water end for the pure water that the storage water purifier produced, and when user's water intaking, improve out the flux. Of course, the device can also be used for storing the concentrated water generated by the user during use, and when the user needs the domestic water, the concentrated water in the water storage tank is taken, so that the waste of water resources is avoided. Specifically, the storage water tank includes a jar body and an upper cover subassembly, and upper cover subassembly detachably connects in jar body upper end, and a jar body is provided with the mouth of a river, and the upper cover subassembly includes the upper cover, covers on and is provided with first through-hole, and the purifier is equipped with the air pump with the storage water tank intercommunication, and the end and the first through-hole intercommunication of giving vent to anger of air pump, under the effect of air pump, the water in the jar body is followed it flows to cross the mouth of a. Preferably, the water passing hole is formed in the bottom of the tank body, and may be the lower end of the side wall of the tank body or the bottom wall of the tank body, so that under the action of gravity, dead water is well prevented from being formed in the water storage tank, and of course, the water passing hole may be formed in other positions of the tank body, such as the upper end of the side wall of the tank body, the top wall of the tank body, and the like.

The utility model discloses storage water tank for water purifier, under the effect of air pump, the water in the jar body flows from crossing the water gap, not only can obtain satisfied water flow, no longer adopts the precharge gas to flow as backpressure drive water moreover to can not exert an influence to the system water efficiency of purifier, moreover, reduce the operating pressure in the storage water tank, avoid the risk of leaking. Can dismantle with jar body upper end through making the upper cover subassembly to be connected, the jar body is provided with the mouth of a river to, when jar body needs to wash, alright pull down the upper cover subassembly and wash the jar body, wash the sewage that produces and can follow a jar body and cross water outlet discharge, just so made things convenient for the washing and the blowdown of storage water tank, improved the play water quality of water of storage water tank. Furthermore, the utility model discloses a storage water tank can install in suitable position as required for the range of application of storage water tank is wider.

The present invention will be described in detail below with reference to specific embodiments.

The first embodiment:

fig. 1 is a schematic structural view of a water storage tank for a water purifier according to a first embodiment of the present invention. As can be seen from fig. 1, the water storage tank in this embodiment includes a tank body 10 and an upper cover assembly 20. The upper cover assembly 20 is detachably connected to the upper end of the can body 10, and the bottom of the can body 10 is provided with a water passing opening 11. The upper cover assembly 20 comprises an upper cover 21 and an air pump 22, the upper cover 21 is provided with a first through hole, an air outlet end of the air pump 22 is communicated with the first through hole, and water in the tank body 10 flows out from the water outlet 11 under the action of the air pump 22.

The utility model discloses storage water tank for water purifier, under the effect of air pump 22, water in the jar body 10 flows out from crossing water mouth 11, not only can satisfy user's various water flow demands, obtains satisfied water flow, no longer adopts the precharge gas to flow out as backpressure drive water moreover to can not exert an influence to the system water efficiency of purifier, in addition, reduced the operating pressure in the storage water tank, avoided the risk of leaking. Can dismantle with jar body 10 upper end through making upper cover subassembly 20 and be connected, jar body bottom is provided with the mouth of a river 11 to, when jar body 10 needs to wash, alright pull down upper cover subassembly 20 and wash jar body 10, wash the sewage that produces and can follow jar body bottom and cross mouth 11 discharges, just so made things convenient for the washing and the blowdown of storage water tank, improved the play water quality of storage water tank. Furthermore, the utility model discloses a storage water tank can install in suitable position as required for the range of application of storage water tank is wider.

The water storage tank of this embodiment, under the effect of air pump 22, the water in the jar body 10 flows out from crossing water mouth 11, that is to say, under the driving of the end pressure of giving vent to anger of air pump 22, the water in the jar body 10 flows out from crossing water mouth 11 to, can adjust the play water flow of water storage tank through the end pressure of giving vent to anger of adjusting air pump 22, make the water storage tank of this embodiment can satisfy user's various play water flow demands.

In practical implementation, the air pump 22 can be used to make the internal pressure of the water storage tank reach 0.3-1 kg of force, so as to achieve the purpose of fast water outlet of the water storage tank. When the internal pressure of the water storage tank reaches 0.5 kilogram force, the water outlet flow of the water storage tank can reach 3L/min. Moreover, when the working pressure in the water storage tank is 0.5 kilogram of force, the water production efficiency of the water purifier cannot be influenced, and the problem that the water production efficiency of the water purifier is reduced due to inflation backpressure in the prior art is solved.

In this embodiment, the water passing port 11 is used as both the water inlet and the water outlet of the water storage tank, and a three-way valve is connected to the water passing port 11 to realize the switching between the water inlet and the water outlet. However, the water inlet is not limited to be shared with the water outlet, the water inlet and the water outlet can be respectively arranged at the bottom of the tank body, the water outlet can also be arranged at the bottom of the tank body, the water inlet can be arranged at any position of the tank body 10, and the specific position of the water inlet is not limited herein.

In the present embodiment, the upper cover 21 of the upper cover assembly 20 is provided with internal threads, the upper end of the can body 10 is provided with external threads, and the internal threads of the upper cover 21 and the external threads of the can body 10 are screwed together, so as to realize the detachable connection between the upper cover assembly 20 and the can body 10. Meanwhile, a double-layer O-ring is disposed between the upper cover assembly 20 and the can body 10 to achieve a sealed connection therebetween. It will be readily appreciated that the removable attachment of the lid assembly 20 to the can body 10 can be accomplished by providing external threads on the lid 21 and a matching internal thread on the upper end of the can body 10. In practical implementation, the detachable connection between the upper cover assembly 20 and the tank 10 is not limited to a threaded connection, and the detachable connection between the upper cover assembly and the tank may be implemented by a detachable connection such as a flange connection, a snap connection, a screw connection, etc.

As can be seen from fig. 1, in this embodiment, the upper cover assembly 20 further includes a diaphragm liner 23 located in the water storage tank, an upper end of the diaphragm liner 23 is connected to the upper cover 21, an air outlet end of the air pump 22 is communicated to the inside of the diaphragm liner 23 through a first through hole, and under the action of the air pump, the diaphragm liner 23 expands to drive the water in the tank body 10 to flow out from the water outlet 11.

The diaphragm inner container 23 is a food-grade elastomer, the air pump 22 inflates the diaphragm inner container 23 to expand the diaphragm inner container 23, the diaphragm inner container 23 expands in the water storage tank to compress the gas in the water storage tank, and the gas in the water storage tank is compressed to generate back pressure to drive the water in the water storage tank to flow out from the water passing hole 11. According to the water storage tank, water outlet backpressure is generated in the water storage tank by inflating the diaphragm inner container 23, so that the direct contact between external air and water in the water storage tank can be avoided, the secondary pollution to the water is avoided, and the water quality in the water storage tank is ensured.

In order to avoid the back pressure generated by the diaphragm liner 23 from affecting the water production efficiency of the water purifier, in the water storage tank according to the embodiment of the present invention, the upper cover assembly 20 further includes an exhaust valve (not shown in fig. 1), and the upper cover 21 is further provided with a third through hole, and the exhaust valve is communicated with the diaphragm liner 23 through the third through hole. In the water making process of the water purifier, the air in the diaphragm liner 23 is exhausted by the exhaust valve, so that the diaphragm liner 23 contracts. With the structure, when the water is produced by the water purifier, the exhaust valve exhausts the gas in the diaphragm liner 23, so that the back pressure generated by the diaphragm liner 23 is eliminated, and the water production efficiency of the water purifier is not influenced. The air in the diaphragm inner container 23 is discharged by the air outlet valve, so that water produced by the water purifier can smoothly enter the water storage tank from the water inlet of the tank body, and the diaphragm inner container 23 is continuously contracted under the extrusion of the water body, so that the water storage tank can be filled with the water body. Therefore, the arrangement of the diaphragm inner container 23 does not reduce the water storage capacity of the water storage tank.

Fig. 2 is a schematic structural view of an upper cover assembly of a water storage tank according to a first embodiment of the present invention.

Fig. 3a is a schematic cross-sectional structure of the cover in fig. 2, fig. 3b is a schematic top view of the cover in fig. 2, and fig. 3c is a schematic perspective structure of the cover in fig. 2.

Fig. 4a is a schematic cross-sectional structure view of the pressure ring in fig. 2, and fig. 4b is a schematic top-view structure view of the pressure ring in fig. 2.

Fig. 5 is a schematic perspective view of the diaphragm liner of fig. 2.

As can be seen in fig. 2 to 5, the upper cover 21 includes a lid body 24 and a pressing ring 25. The lid 24 is provided with a second through hole 241, and a first rib 242 protruding toward the inside of the can body is provided along the circumferential direction of the second through hole 241. The diaphragm inner container 23 is disposed in the tank through the second through hole 241, and the upper end of the diaphragm inner container 23 has an opening 231. The press ring 25 comprises a press connection body 251 and a second rib body 252 which is arranged on the press connection body 251 and protrudes towards the inside of the tank body, the second rib body 252 is sleeved in the opening 231 and presses the opening 231 onto the inner side wall of the first rib body 242, and the first through hole 30 is arranged on the press connection body 251.

In the upper cover assembly with such a structure, the second rib 252 is sleeved in the opening 231 and presses the opening 231 against the inner side wall of the first rib 242, thereby connecting the upper end of the diaphragm inner 23 to the upper cover 21. Because the diaphragm inner container 23 has elasticity, when the second rib 252 presses the opening 231 against the inner side wall of the first rib 242, the diaphragm inner container 23 can be hermetically connected to the upper cover 21, and air leakage at the port of the diaphragm inner container is avoided.

In order to realize the sealing connection of the pressing ring 25 and the cover body 24 to the diaphragm liner 23, as can be seen from fig. 3a and 3b, an upward-protruding internal-threaded column 243 is arranged on the periphery of the second through hole 241 along the circumferential direction of the second through hole 241, and a fixing hole 253 matched with the internal-threaded column 243 is arranged on the pressing body 251 of the pressing ring 25, as shown in fig. 4a and 4 b. In order to facilitate the assembly of the diaphragm liner 23 in the assembly process, the through hole 232 matched with the internal thread column 243 is formed in the circumferential direction of the opening portion 231 of the diaphragm liner 23, and the positioning assembly of the diaphragm liner can be facilitated due to the arrangement of the through hole 232.

The process of assembling the cover body, the diaphragm inner container and the pressure ring is as follows: the lower end of the diaphragm liner 23 penetrates through the second through hole 241, and the through holes 232 are respectively sleeved on the internal thread columns 243 to position the diaphragm liner 23; sleeving the second rib body 252 of the pressing ring 25 in the opening 231 and pressing the opening 231 to the inner side wall of the first rib body 241; the assembly of the cover, diaphragm bladder and press ring is completed by screwing set screws through the fixing holes 253 in the press ring 25 onto the internally threaded posts 243 to secure the press ring 25 to the cover 24.

In this embodiment, as shown in fig. 3a, the top of the cover 24 has a stepped hole, the second through hole 241 is a small hole of the stepped hole, and the internally threaded post 243 is disposed on the stepped wall. It is to be understood that the second through hole 241 may be formed directly on the top wall of the cover body 24.

In the present embodiment, the number of the internal threaded columns 243 on the cover 24 is 4, and it is easy to understand that the number of the internal threaded columns 243 can be specifically set according to actual needs, and is not limited to 4. As can be seen in fig. 3c, the circumferential outer surface of the cover 24 is provided with a longitudinal protrusion 244, and the longitudinal protrusion 244 can increase the friction of the outer surface, thereby facilitating the detachment of the cover assembly from the can body.

As can be seen from fig. 2, in the present embodiment, the air pump 22 is directly mounted on the compression ring 25, and the air outlet end of the air pump 22 is directly communicated with the first through hole 30 on the compression joint body 251, and the air inlet end of the air pump 22 is communicated with the outside air. The first through hole 30 is provided on the crimping body 251 at the open area of the open portion 231 so that the air outlet end of the air pump 22 communicates with the inside of the diaphragm bladder 23 through the first through hole 30. It is understood that the air pump 22 can be installed at other suitable positions as required, and the same technical effect can be achieved by using a pipeline to communicate the air outlet end of the air pump 22 with the first through hole 30.

As can be seen in fig. 4b, a third through hole 40 is provided in the crimp body 251 in the open area of the opening 231, so that the venting valve can communicate into the diaphragm bladder through the third through hole 40. In the present embodiment, the exhaust valve is directly mounted on the crimping body 251, and an exhaust port of the exhaust valve directly communicates with the third through hole 40. It is easy to understand that the exhaust valve can also be installed at other suitable positions as required, and the exhaust port of the exhaust valve is communicated with the third through hole by adopting a pipeline, so that the same technical effect can be achieved.

In the water storage tank of the embodiment, the air pump 22 and the exhaust valve are both directly mounted on the upper cover, so that the integrated design of the upper cover assembly is realized, and the structure of the water storage tank is more compact.

In order to monitor the pressure in the diaphragm inner container 23 in real time, in the present embodiment, the upper cover assembly further includes a pressure detecting device for detecting the pressure in the diaphragm inner container. The pressure detection means can monitor the pressure in the diaphragm bladder 23 in real time. And in the water outlet process of the water storage tank, the air pump works according to the signal of the pressure detection device. For example, when the pressure detection means detects that the pressure in the diaphragm bladder 23 is less than the pressure threshold, the air pump is operated, the pressure in the diaphragm bladder is increased, and when the pressure in the diaphragm bladder reaches the pressure threshold, the air pump is stopped. Pressure threshold can set for as required, and normally, pressure threshold is 0.5 kilogram power, and such pressure threshold both can guarantee that the water outlet flow of storage water tank satisfies user's general demand, can not exert an influence to the system water efficiency of purifier again.

As can also be seen from fig. 1, the water storage tank of the present embodiment further comprises a liquid level detection device 50. When the liquid level detection device 50 detects that the liquid level in the water storage tank reaches the liquid level threshold value, the water purifier communicated with the water storage tank stops producing water. The liquid level detection device can prevent the water in the water storage tank from being overfilled, prevent water flow from overflowing and ensure the use safety of the water storage tank. In this embodiment, the liquid level detection device is an electronic floating ball, and the electronic floating ball is installed at the top end of the water storage tank. It is easy to understand that the liquid level can be detected by adopting an electrode, or the liquid level can be detected by adopting a gravity sensor, or the water inlet of the water storage tank can be controlled by adopting a mechanical floating ball.

In order to facilitate the cleaning of the tank body 10, the inner diameter of the opening at the upper end of the tank body 10 is 60 mm-150 mm and the height of the tank body 10 is 150 mm-350 mm by combining the length of the arm and the size of the hand of a human body, so that the hand of the human body can conveniently stretch into the tank body 10 from the opening at the upper end of the tank body to clean all corners of the tank body. In order to facilitate the hand to contact any position in the tank body, in the embodiment, the tank body is cylindrical and adopts large-fillet transition, and the maximum circumferential dimension of the cylinder is not more than 200 mm. When the inner diameter of the opening at the upper end of the tank body 10 is smaller than 60mm, hands of a human body hardly enter the tank body through the opening, the difficulty of cleaning the tank body is increased, and when the inner diameter of the opening at the upper end of the tank body is larger than 150mm, the opening is too large, so that the upper cover assembly and the tank body are not convenient to connect and mount. When the height of the tank body is less than 150mm, the volume of the tank body is too small, the capacity of the water storage tank is reduced, and when the height of the tank body is greater than 350mm, the arm of a human body is difficult to contact the bottom of the tank body, so that the tank body is not easy to clean, and the difficulty in cleaning the tank body is increased.

In order to increase the visibility of the water storage tank, the side wall of the tank body of the water storage tank is transparent. Specifically, the tank body is formed by blow molding through a transparent material. In other embodiments, in order to increase the visibility of the water storage tank, a transparent visual window is arranged on the side wall of the tank body. By means of the water storage tank, a user can observe liquid level change in the water storage tank, and user experience is improved.

Second embodiment:

fig. 6 is a schematic structural view of an upper cover assembly of a water storage tank according to a second embodiment of the present invention. Unlike the first embodiment, in the present embodiment, as shown in fig. 6, the upper cover includes a lid body 24 and a pressing ring 25. The cover body 24 is provided with a second through hole 241, the diaphragm liner 23 passes through the second through hole 241 and is arranged in the water storage tank, and the upper end of the diaphragm liner 23 is provided with an opening part. The pressing ring 25 includes a pressing body 251, and the pressing body 251 presses the open portion to the upper surface of the lid body 24. The first through hole is provided on the crimp body 251 as in the first embodiment.

As can be seen from fig. 6, in the present embodiment, the internally threaded post 243 protrudes downward, i.e., toward the inside of the can body, so that when a fixing screw is screwed onto the internally threaded post 243 through the fixing hole 253 on the press ring 25, the lower surface of the press body 251 presses the open portion against the stepped wall of the stepped hole in which the second through hole 241 is located so that the diaphragm inner container 23 is hermetically connected to the upper cover 21.

The third embodiment:

fig. 7 is a schematic structural diagram of a water storage tank according to a third embodiment of the present invention. Unlike the first embodiment, in the present embodiment, as shown in fig. 7, the upper cover assembly further includes a three-way valve 26, a first end 261 of the three-way valve 26 is communicated with the first through hole 30, a second end 262 of the three-way valve 26 is communicated with the air outlet end of the air pump 22, and a third end 263 of the three-way valve 26 is communicated with the atmosphere. When the water tank discharges water, the first end 261 and the second end 262 of the three-way valve 26 are communicated, so that the air outlet end of the air pump 22 is communicated into the diaphragm inner container 23 through the first through hole 30, and in the process of water production of the water purifier, the first end 261 and the third end 263 of the three-way valve 26 are communicated, so that the gas in the diaphragm inner container 23 is discharged, and the diaphragm inner container 23 is contracted.

In this embodiment, the three-way valve 26 serves to communicate the air pump with the diaphragm liner and also to vent the diaphragm liner, and there is no need to additionally provide a third through hole for connecting the vent valve. The water storage tank of the embodiment provides another connecting structure for controlling the expansion and contraction of the diaphragm liner.

It is easily understood that the water storage tank of the present embodiment may also adopt the assembling structure of the upper cover assembly in the second embodiment, such that the opening portion is compressed between the lower surface of the crimping body 251 and the step wall of the step hole where the second through hole 241 is located.

The fourth embodiment:

fig. 8 is a schematic structural view of a water storage tank for a water purifier according to a fourth embodiment of the present invention. As can be seen from fig. 8, the water storage tank of the present embodiment includes a tank body 10 and an upper cover assembly 20. The upper cover assembly 20 is detachably connected to the upper end of the can body 10, and the bottom of the can body 10 is provided with a water passing opening 11. The upper cover assembly 20 comprises an upper cover 21 and an air pump 22, the upper cover 21 is provided with a first through hole, an air outlet end of the air pump 22 is communicated with the first through hole, and water in the tank body 10 flows out from the water outlet 11 under the action of the air pump 22.

The water storage tank of this embodiment further includes a pressure release valve (not shown in the figure), and when the pressure in the water storage tank reaches the opening pressure of the pressure release valve, the pressure release valve opens to release the pressure in the water storage tank. Usually, select opening pressure 0.3 kilogram power ~1 kilogram power of relief valve, the opening pressure of relief valve in this embodiment is 0.5 kilogram power, that is to say, when storage water tank internal pressure reached 0.5 kilogram power, the relief valve was opened and is made storage water tank internal pressure release to make operating pressure can maintain at 0.5 kilogram power in the storage water tank.

Compared with the first embodiment, the water storage tank of the present embodiment does not use a diaphragm liner, but the gas generated at the gas outlet end of the air pump 22 directly acts on the upper surface of the water body in the water storage tank to drive the water to flow out from the water outlet 11.

Other features of this embodiment are the same as those of the first embodiment, and are not described in detail herein.

In the description of the embodiments of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a water purifier, includes the storage water tank, the storage water tank includes a jar body and upper cover subassembly, its characterized in that, upper cover subassembly detachably connects in jar body upper end, jar body is provided with the mouth of a river, the upper cover subassembly includes the upper cover, on cover and be provided with first through-hole, the water purifier is equipped with the air pump with the storage water tank intercommunication, the end and the first through-hole intercommunication of giving vent to anger of air pump under the effect of air pump, water in the jar body is followed water outlet flows.

2. The water purifier as recited in claim 1, wherein the upper cover assembly further comprises a diaphragm liner located in the water storage tank, the upper end of the diaphragm liner is connected with the upper cover, the air outlet end of the air pump is communicated to the inside of the diaphragm liner through the first through hole, and the diaphragm liner expands to drive the water in the tank body to flow out from the water outlet under the action of the air pump.

3. The water purifier of claim 2,

the upper cover comprises a cover body and a pressing ring, a second through hole is formed in the cover body, a first rib body protruding towards the interior of the tank body is arranged along the circumferential direction of the second through hole, the diaphragm liner penetrates through the second through hole and is arranged inside the water storage tank, an opening portion is formed in the upper end of the diaphragm liner, the pressing ring comprises a crimping body and a second rib body arranged on the crimping body and protruding towards the interior of the tank body, the second rib body is sleeved in the opening portion and tightly presses the opening portion onto the inner side wall of the first rib body, and the first through hole is formed in the crimping body; or,

the upper cover comprises a cover body and a pressing ring, a second through hole is formed in the cover body, the diaphragm liner penetrates through the second through hole and is arranged inside the water storage tank, an open portion is formed in the upper end of the diaphragm liner, the pressing ring comprises a pressing connection body, the pressing connection body presses the open portion to the upper surface of the cover body, and the first through hole is formed in the pressing connection body.

4. The water purifier as recited in claim 2, wherein said upper cover assembly further comprises an exhaust valve, said upper cover assembly further comprises a third through hole, said exhaust valve is connected to said membrane inner container through said third through hole, and said exhaust valve exhausts gas from said membrane inner container to make said membrane inner container contract during the process of water production in said water purifier.

5. The water purifier as recited in claim 2, wherein said upper cover assembly further comprises a three-way valve, a first end of said three-way valve is connected to said first through hole, a second end of said three-way valve is connected to an air outlet of said air pump, a third end of said three-way valve is connected to the atmosphere, when water is discharged from said water storage tank, said first end and said second end of said three-way valve are connected to each other, so that said air outlet of said air pump is connected to said diaphragm inner container through said first through hole, and when water is produced from said water storage tank, said first end and said third end of said three-way valve are connected to each other to discharge air from said diaphragm inner container, so that said diaphragm inner.

6. The water purifier as recited in claim 2, wherein said cover assembly further comprises a pressure detection device for detecting a pressure inside the diaphragm inner container, and said air pump operates according to a signal of said pressure detection device during a water discharge process of the water storage tank.

7. The water purifier of claim 1, wherein the water storage tank further comprises a pressure relief valve, and when the pressure in the water storage tank reaches an opening pressure of the pressure relief valve, the pressure relief valve opens to release the pressure in the water storage tank.

8. The water purifier according to any one of claims 1-7, wherein the inner diameter of an opening at the upper end of the tank body is 60 mm-150 mm, and the height of the tank body is 150 mm-350 mm.

9. The water purifier according to any one of claims 1-7, wherein the side wall of the tank is transparent; or, a transparent visual window is arranged on the side wall of the tank body.

10. The water purifier according to any one of claims 1-7, wherein the water storage tank further comprises a liquid level detection device, and when the liquid level detection device detects that the liquid level in the water storage tank reaches a liquid level threshold value, the water purifier connected with the water storage tank stops producing water.