CN221670682U - Water supply component of pet drinking fountain, water supply system and drinking fountain with the system - Google Patents

Abstract

A water supply assembly, a water supply system and a water dispenser with the system of the pet water dispenser are low in noise, long in service life and capable of continuously or intermittently injecting purified water into a water drinking tray when no person is on duty. The upper end of the water supply pipe in the water supply assembly is connected to the water supply chamber at the top of the water dispenser case in a sealing way, the lower end of the water supply pipe is arranged in the water of the water storage tank of the water dispenser, the lower end of the water supply pipe is provided with a one-way water valve which sucks the water in the water storage tank into the water supply pipe or keeps the water in the water supply pipe in the running state of a water pump arranged in the water supply chamber, and the one-way water valve is provided with a purified water filtering assembly. The water quantity sensor is adopted to automatically cut off the power supply and remind in the water shortage state in the water storage tank, the UV lamp is adopted to sterilize, so that the drinking water is cleaner, meanwhile, the multi-layer filtration of impurities in the water is adopted, the water quality is further purified, the case and the top cover made of stainless steel materials are adopted, and the water quality is convenient for a user to clean and has long service life.

Description

Water supply component of pet drinking fountain, water supply system and drinking fountain with the system

Technical Field

The utility model relates to a pet drinking water machine, in particular to a pet drinking water machine which adopts an impeller pump as a water circulation power.

Background Art

Nowadays, pet drinking fountains are becoming more and more popular among pet owners because they can provide clean, sterile and automatically circulating drinking water for pets (pet cats, pet dogs, etc.). Generally, a pet drinking fountain includes an open drinking water tray arranged on the top of the drinking fountain, a water storage tank arranged in the drinking fountain case, a water supply system that lifts the water in the water storage tank and continuously injects it into the drinking water tray, a reflux system that returns the remaining water in the drinking water tray to the water storage tank, and a water filtration device.

The water supply systems used by pet drinking fountains in the prior art to lift water from the water tank to the drinking tray are generally as follows:

1. Use a submersible pump placed in the water tank to squeeze the water in the water tank upward through the water supply pipe and spray it out from the water injection port. The submersible pump of this water supply system is placed in water for a long time, which has the following disadvantages: first, it affects its service life; second, the power supply and signal control line for controlling the water pump need to be placed in water, which brings certain hidden dangers to its use; third, the submersible pump is noisy.

2. A diaphragm pump is installed on the top of the water dispenser chassis, and the water in the water tank is lifted up and injected into the water tray through the water supply pipe extending into the water tank. The shortcomings of this water supply system are: first, the service life of the diaphragm pump is short; second, the noise is loud; third, when the diaphragm pump stops running, all the water in the water supply pipe will flow back into the water tank. When the diaphragm pump is started next time, the water supply pipe must be filled with water to enable the diaphragm pump to pump water normally. Therefore, when the pet owner is away for several days without anyone on duty, the diaphragm pump needs to continue to work, otherwise, the water supply to the water tray will be interrupted.

Utility Model Content

The technical problem to be solved by the utility model is to provide a water supply component, a water supply system and a water dispenser with the system for a pet water dispenser which has low noise, long service life and can automatically inject purified water into a water tray continuously or intermittently when no one is on duty.

In order to solve the above technical problems, the technical solution adopted by the utility model is:

The utility model discloses a water supply assembly for a pet water dispenser, comprising a water supply pipe, characterized in that the upper end of the water supply pipe is sealed and connected to a water supply chamber located on the top of the water dispenser case, the lower end of the water supply pipe is placed in the water of a water storage tank of the water dispenser, a one-way water valve is provided at the lower end of the water supply pipe for sucking water in the water storage tank into the water supply pipe or retaining the existing water in the water supply pipe in the water supply pipe according to the operating state of a water pump arranged in the water supply chamber, and a water purification filter assembly is provided on the one-way water valve.

The one-way water valve is composed of a valve upper shell, a valve bottom shell and a valve support. The upper end of the valve upper shell is communicated with the water supply pipe and is sealed. The valve upper shell and the valve bottom shell are sealed and form a hollow inner cavity therebetween. The valve support is placed in the hollow inner cavity. A base plate connected to the upper end of the valve support is provided in the valve upper shell. Water holes that allow the hollow inner cavity to communicate with the water supply pipe are provided on both sides of the base plate. A water inlet hole that allows water in a water storage tank to enter the hollow inner cavity is provided on the bottom surface of the valve bottom shell. An elastic thin valve sheet is provided at the bottom of the valve support that can connect the water inlet hole with the hollow inner cavity when the water pressure in the water storage tank is greater than the water pressure in the water supply pipe, or seal the water inlet hole when the water pressure in the water supply pipe is greater than the water pressure in the water storage tank.

The valve upper shell is an integral structure, which is divided into three sections from top to bottom, namely, an insertion means, a middle section and a connecting section. The insertion section is tubular, which is inserted upward into the water supply pipe and is sealed in between; the middle section is composed of an outer part and a central part, the cross-sectional shape of the outer part is an "eight" shape, and the cross-sectional shape of the central part is an inverted trapezoid, the lower bottom of the trapezoid is open and communicated with the insertion section, the base plate is the upper bottom of the trapezoid, and an annular water passage cavity is formed between the outer part and the central part, the water passage holes are arranged on the two waists of the trapezoid, and a downward extending positioning column is provided on the lower surface of the base plate; the connecting section is trumpet-shaped, its upper end is connected to the outer side of the middle section, and its lower end is connected to the valve bottom shell; the upper surface of the valve support is provided with a positioning hole into which the positioning column can be inserted, and the depth of the positioning hole is greater than or equal to the length of the positioning column.

The one-way water valve is composed of a valve upper shell, a valve bottom shell and a valve ball. The valve upper shell is tubular with a hollow inner channel, and its upper end is connected to the water supply pipe. The hollow inner channel is divided into an upper section and a lower section. The inner wall of the hollow inner channel of the upper section is provided with a ball-blocking rib extending from top to bottom and protruding toward the axial direction of the hollow inner channel. The lower section is a columnar channel. The valve ball is placed in the lower section, and the ball diameter of the valve ball is smaller than the diameter of the hollow inner channel of the lower section. The valve bottom shell is connected to the valve upper shell, and a water inlet hole is provided in the center of the valve bottom shell to allow water in the water tank to enter the hollow inner cavity. A sealing gasket is provided on the inner side of the water inlet hole, which surrounds the water inlet hole and connects the water inlet hole with the hollow inner channel when the water pressure in the water tank is greater than the water pressure in the water supply pipe, or is pressed by the valve ball to seal the water inlet hole when the water pressure in the water supply pipe is greater than the water pressure in the water tank.

There are three ball-blocking ribs.

The one-way water valve is composed of an upper valve shell, a middle valve shell and an anchor plug arranged in the middle valve shell. The upper valve shell and the middle valve shell are both tubular with a hollow inner channel. The upper end of the upper valve shell is connected to the water supply pipe, and the lower end of the upper valve shell is connected to the upper end of the middle valve shell. A bottom cylinder extending downward and in the shape of a hollow truncated cone is provided on the inner side wall of the middle valve shell. The bottom of the bottom cylinder is a water inlet hole in the hollow inner channel that allows water in the water storage tank to enter. The anchor plug is disengaged from the water inlet hole when the water pressure in the water storage tank is greater than the water pressure in the water supply pipe, or is pressed and sealed on the water inlet hole when the water pressure in the water supply pipe is greater than the water pressure in the water storage tank.

The anchor plug is composed of a spherical or conical head and a positioning center axis. A sealing gasket is inlaid on the outer circumferential wall of the head. When the head is inserted into the water inlet hole, the sealing gasket is located between the inner wall of the bottom tube and the outer wall of the head. A positioning sleeve extending toward the shell axis is provided on the inner wall of the valve upper shell, and the upper end of the positioning center axis is inserted into the positioning sleeve.

The one-way water valve is composed of a valve upper shell, a valve bottom shell and a rubber valve in a cone-shaped tower arranged in the valve upper shell. The valve upper shell is tubular with a hollow inner channel. The upper end of the valve upper shell is connected to the water supply pipe, and the lower end of the valve upper shell is connected to the plate-shaped valve bottom shell. The valve bottom shell is provided with a water inlet hole that allows water in the water tank to enter the hollow inner channel. The rubber valve is inverted on the valve bottom shell and covers the water inlet hole. A water hole is provided at the top of the rubber valve. The water hole is opened when the water pressure in the water tank is greater than the water pressure in the water supply pipe, or is closed when the water pressure in the water supply pipe is greater than the water pressure in the water tank.

A water supply system for a pet drinking fountain comprises a water supply chamber arranged on the top of the drinking fountain case and an impeller-type water pump installed in the water supply chamber, a water inlet for pumping water in a water tank arranged in the case into the water supply chamber through a water supply pipe and a water outlet for pumping clean water in the water supply chamber into a pet drinking tray are respectively provided on the bottom plate and the upper side plate of the water supply chamber, characterized in that: the water supply assembly for a pet drinking fountain of the utility model is provided at the lower end of the water supply pipe.

A pet drinking fountain comprises a pet drinking tray arranged on the top of the drinking fountain, a water storage tank arranged in a casing, and a water supply system which can purify and disinfect the water in the water storage tank and then pump it into the pet drinking tray through a water pump, wherein the water supply system is the water supply system used in the pet drinking fountain of the utility model.

The utility model adopts a water supply system of a centrifugal pump and a one-way water valve, which can effectively extend the service life of the water supply system. A water volume sensor can automatically cut off the power and give a reminder when there is a lack of water in the water tank. UV light sterilization can make the drinking water cleaner. At the same time, multi-layer filtration (one-way water valve head filtration, filter cotton filtration) is used to filter impurities in the water to further purify the water quality. The chassis and top cover are made of stainless steel materials, which are convenient for users to clean and have a long service life.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a pet drinking fountain of the present invention.

FIG. 2 is an exploded schematic diagram of the water pump assembly and the chassis in FIG. 1 .

FIG. 3 is an exploded schematic diagram of FIG. 1 .

FIG. 4 is a cross-sectional view taken along line AA in FIG. 1 .

FIG. 5 is an enlarged schematic diagram of the one-way water valve embodiment 1 of portion B in FIG. 4 .

FIG. 6 is a schematic diagram of a one-way water valve embodiment 2 of portion B in FIG. 4 .

FIG. 7 is a schematic diagram of a one-way water valve embodiment 3 of portion B in FIG. 4 .

FIG. 8 is a schematic diagram of a one-way water valve embodiment 4 of portion B in FIG. 4 .

FIG. 9 is an enlarged schematic diagram of portion C in FIG. 4 .

FIG. 10 is an exploded schematic diagram of FIG. 1 from another viewing angle.

The reference numerals are as follows:

Water supply assembly 1, water supply pipe 2, water supply system 3, main control circuit board 31, water pump 32, stator 321, rotor 322, impeller 323, UV lamp 33, water volume sensor 34, water supply chamber 35, open waterway 36, top seat chamber 37, water accumulation chamber 371, water inlet 372, water inlet pipe 373, overflow port 374, water outlet 375, base chamber 38, return pipe 381, bottom shell 39, pet drinking fountain 4, chassis 41, water storage tank 42, drinking tray 43, top cover 44, assembly hole 45, water injection channel 46, water cup 5, one-way water valve 100, valve upper shell 101, valve middle shell 102, valve bottom shell 103, hollow inner cavity 104, hollow inner channel 105, water hole 106, water inlet hole 107, bottom shell cover 108, filter cotton 109, valve support 110, base plate 111, positioning column 112, positioning hole 113, elastic thin valve plate 114, valve ball 115, ball blocking rib 116, sealing gasket 117, bottom tube 118, anchor plug 119, head 120, sealing gasket 121, positioning center axis 122, positioning sleeve 123, rubber valve 124, cone surface 125.

DETAILED DESCRIPTION

The utility model discloses a novel water supply component 1 applied to a pet water dispenser 4, a water supply system 3 and the pet water dispenser 4 with the water supply system 3.

1. Water supply component 1:

As shown in Fig. 1, Fig. 4-Fig. 8, it comprises a water supply pipe 2 and a one-way water valve 100. The upper end of the water supply pipe 2 is sealed and connected to the water supply chamber 35 located in the upper part of the water dispenser case 41. The one-way water valve 100 is assembled at the lower end of the water supply pipe 2 and immersed in the water storage tank 42 of the water dispenser. The one-way water valve 100 can make the water supply assembly 1 smoothly lift the water in the water storage tank 42 to the water supply chamber 35 located at the top of the case 41 when the water pump 32 (the preferred water pump 32 of the utility model is an impeller 323 type water pump 32) located at the top of the water dispenser case 41 is in operation. The clean water in the water supply chamber 35 is then injected into the water tray 43 of the water dispenser through the water outlet 375 located on the side wall of the water supply chamber 35.

After continuously injecting water into the water tray 43 for a period of time, the water pump 32 stops working and is in a standby state. At this time, the one-way water valve 100 allows the water in the water supply pipe 2 to remain in the water supply pipe 2. That is to say, although the water pump 32 stops working, the water level in the water supply pipe 2 does not drop, which also provides a medium for the impeller 323 to move water when the water pump 32 is started next time. When the water pump 32 is started, the impeller 323 placed in the water of the water supply chamber 35 makes the water in the water supply pipe 2 flow upward, and the upward flowing water forms a negative pressure difference between the upper and lower ends of the water supply pipe 2, thereby opening the one-way water valve 100 and continuously sucking the water in the water storage tank 42 into the water supply pipe 2.

The water supply assembly 1 has a simple structure, stable water supply, low noise and is not afraid of temporary power outages. Especially when the pet owner is away for a long time and no one is on duty, it can automatically and regularly provide clean water to the drinking water tray 43.

The specific structure of the one-way water valve 100 in the water supply assembly 1 of the utility model is introduced in detail in the following fourth section.

2. Water supply system 3:

1. Structure

As shown in Figures 1 to 3, Figure 9 and Figure 10, it includes a water supply chamber 35 arranged on the top of the water dispenser chassis 41, a water pump 32 installed in the water supply chamber 35 (the utility model preferably uses an impeller 323 type water pump 32, also called a centrifugal pump), a main control circuit board 31, a UV lamp 33 (ultraviolet lamp) for disinfection and sterilization, a water return pipeline 381 and the water supply assembly 1.

A water dispenser top cover 44 is provided on the top of the chassis 41, and an assembly hole 45 is provided on the side of the top cover 44 (the other side portion of the top cover 44 can be used as a drinking water tray 43), and a top seat chamber 37 and a base chamber 38 are provided above and below the assembly hole 45, respectively. The top seat chamber 37 and the base chamber 38 are preferably assembled together using a snap-fit structure, and the space within the top seat chamber 37 constitutes a water accumulation chamber 371 on which a water pump device can be installed, and a water inlet 372 is provided at the bottom of the water accumulation chamber 371, and a hard water inlet pipe 373 is provided on the water inlet 372, and the water supply pipe 2 mentioned in the water supply assembly 1 of the utility model is sleeved on the water inlet pipe 373.

The water pumping device is encapsulated in a box body, which includes a main control circuit board 31 and a water pump 32 (including a stator 321, a rotor 322 and an impeller 323). The main control circuit board 31 is arranged in the box body and on the inner side of the chamber cover plate above the water pump 32. The stator 321 and the rotor 322 of the water pump 32 are installed in the middle of the box body. The other space in the box body constitutes a water supply chamber 35. The cross-sectional shape of the water supply chamber 35 is "L"-shaped. An open water channel 36 is provided on the bottom plate of the water supply chamber 35. The impeller 323 fixedly connected to the lower end of the rotor 322 is placed in the open water channel 36. When the water pumping device is placed in the water accumulation chamber 371, the open water channel 36 is placed directly above the water inlet 372.

The main control circuit board 31 , the stator 321 and the rotor 322 installed in the box body are water-tightly separated from the water supply chamber 35 , and only the impeller 323 installed at the end of the rotor 322 is placed in the water of the water supply chamber 35 .

A water outlet 375 is provided at the upper portion of the side plate of the water supply chamber 35 . As the water pump 32 operates, the impeller 323 pumps the water in the water supply chamber 35 out of the water outlet 375 into the water tray 43 .

The UV lamp 33 is arranged in the water supply chamber 35 at the rear side of the impeller 323 (with the impeller 323 as the boundary, the water outlet end as the rear and the water inlet end as the front). The UV lamp 33 disinfects and sterilizes the clean water that is about to flow to the water outlet 375.

A water volume sensor 34 is also provided in the water supply chamber 35 near the water outlet 375, which can indirectly judge the water level in the water tank 42 by detecting whether there is a lack of water in the water supply chamber 35. That is, when the water level in the water tank 42 is lower than the position of the water inlet hole 107 of the one-way water valve 100 in the water supply assembly 1, the running water pump 32 cannot suck the water in the water tank 42 into the water supply pipe 2, so that there will be a state of no water supply in the water supply chamber 35.

A peripheral edge extending toward the periphery is provided at the top of the water accumulation cavity 371 of the top seat chamber 37, and an overflow port 374 is provided on the peripheral edge for discharging excess accumulated water into the water storage tank 42 when the accumulated water in the water accumulation cavity 371 overflows the cavity top.

A bottom shell 39 mounted on the base chamber 38 is provided below the base chamber 38, and filter cotton 109 for filtering impurities in the return water is provided between the bottom shell 39 and the bottom plate of the base chamber 38. A reflux pipe 381 is provided between the bottom shell 39 and the side wall of the base chamber 38 for the return water flowing down from the overflow port 374 in the water tray 43, and the return water flows downward into the water storage tank 42 through the filter cotton 109.

The return pipe 381 is sealed and isolated from the water supply chamber 35 .

2. Use

When using the water dispenser for the first time, use a cup 5 to inject clean water into the water tray 43 (other automatic water injection devices can also be used for water injection). The water higher than the water tray 43 flows into the water accumulation chamber 371 from the water injection channel 46 on the side of the water tray 43, and then is injected into the water supply pipe 2 from the water accumulation chamber 371. Since a one-way water valve 100 is provided at the bottom end of the water supply pipe 2 (the one-way water valve 100 is closed under the heavy pressure of the accumulated water in the water supply pipe 2), after filling the water accumulation chamber 371 and the water supply pipe 2, the box body encapsulating the water pump device is placed in the water accumulation chamber 371, and the bottom of the box body contacts the bottom of the water accumulation chamber 371. During the placement process, the water in the water accumulation chamber 371 enters the water supply chamber 35 from the open water channel 36 and makes the water level overflow the impeller 323 of the water pump 32. At this time, the water pump 32 is started, and the water in the water supply chamber 35 is pumped out from the water outlet 375 under the rotation of the impeller 323, thereby forming a negative pressure difference between the upper and lower ends of the water supply pipe 2 (smaller at the top and larger at the bottom), and then the one-way water valve 100 is opened. As the water pump 32 continues to operate, the water in the water tank 42 is continuously sucked into the water supply pipe 2.

When the water pump 32 stops working (regardless of whether the water supply is suspended manually or due to a sudden power outage), the impeller 323 stops rotating. At this time, the pressure difference between the upper and lower ends of the water supply pipe 2 is zero, and the one-way water valve 100 arranged at the lower end of the water supply pipe 2 is closed by the gravity of the water retained in the water supply pipe 2. Therefore, the water in the water supply pipe 2 and the water supply chamber 35 will not be lost, ensuring that the next time the water pump 32 is started, a movable water medium is provided for the impeller 323.

3. Pet drinking fountain 4

As shown in Fig. 1 to Fig. 3 and Fig. 10, the outer contour of the pet drinking fountain 4 of the utility model can be a rectangular body, a cylinder or an ellipsoid. It includes a case 41, a drinking tray 43 for the pet to drink water and the water supply system 3.

A water storage tank 42 for storing a large amount of drinking water is arranged in the case 41 , a top cover 44 is arranged on the case 41 , and the water supply system 3 is arranged on one side of the top cover 44 .

The middle of the water tray 43 is slightly concave downwards, and a plurality of overflow ports 374 are provided on its sides. Excess purified water injected into the water tray 43 can flow back to the water storage tank 42 through the overflow ports 374 via the return pipe 381 .

The water dispenser is also provided with a switch button for starting the water pump 32 and a related indicator light.

The pet drinking fountain 4 of the utility model has a beautiful appearance. The impeller 323 type water pump 32 adopted not only has the advantages of low noise, strong pumping capacity and long service life, but also is installed on the top of the case 41 away from the water storage container, so that it can effectively avoid water erosion to the rotor 322, the stator 321 and the relevant circuit board. The water flow structure adopted for the first water filling and over-overflow drainage can effectively avoid the pollution of the clean water in the water storage chamber by the return water caused by excessive water filling in the water supplying process to the water tray 43. In addition, after the pet drinking fountain 4 first fills the water storage chamber and the water supply pipe 2 separately, even if the water pump 32 is intermittently operated afterwards, it will not affect the water supply system 3 to continue to fill the water into the water tray 43 normally. It can be realized that when the pet owner is out for a long time and no one is on duty, the machine can automatically and regularly complete the operation task of providing clean water to the water tray 43.

4. The one-way water valve 100 in the water supply assembly 1 of the present invention preferably has the following structures.

1. Breathing diaphragm valve

As shown in Figures 4 and 5, the one-way water valve 100 is composed of a valve upper shell 101, a valve bottom shell 103 and a valve support 110. The valve upper shell 101 is sealed to the valve bottom shell 103. After the valve upper shell 101 and the valve bottom shell 103 are combined, a hollow inner cavity 104 is formed therebetween, and the valve support 110 is placed in the hollow inner cavity 104.

The valve upper shell 101 is an integral structure, which is divided into three sections from top to bottom, namely, the insertion section, the middle section and the connecting section.

The insertion section is tubular, and is inserted upward into the water supply pipe 2 and communicates with the water supply pipe 2, and is sealed therebetween;

The middle section is divided into an outer part and a central part from the outside to the inside. The cross-sectional shape of the outer part is an "eight" shape, and the cross-sectional shape of the central part is an inverted trapezoid. The upper ends of the outer part and the central part intersect with the lower end of the insertion section, and an annular water passage cavity is formed between the outer part and the central part. The lower bottom of the trapezoid in the central part (the longer bottom side of the trapezoid) is open and communicates with the insertion section, and the upper bottom of the trapezoid is a base plate (called a base plate 111), and a positioning column 112 extending downward is provided on the lower surface of the base plate 111. Water passage holes 106 are provided on both waists of the trapezoid in the central part, and the water passage holes 106 connect the hollow inner cavity 104 with the tube inside the insertion section.

The connecting section is trumpet-shaped, with its upper end connected to the outer side of the middle section and its lower end connected to the valve bottom shell 103 (the connection can be made by ultrasonic welding or threaded connection).

The cross-section of the valve bottom shell 103 is arc-shaped, and a water inlet hole 107 is provided on its bottom surface to allow water in the water storage tank 42 to enter the hollow inner cavity 104. A bottom shell cover 108 is also provided under the valve bottom shell 103. The bottom shell cover 108 is a mesh structure, and a filter cotton 109 is provided in the bottom shell cover 108 for purifying and filtering the incoming water.

The upper half of the valve support 110 is cylindrical, and the cross-section of the lower half is arched. A positioning hole 113 is provided on the top surface of the valve support 110 to allow the positioning column 112 to be inserted therein. The positioning hole 113 is preferably a blind hole, and the depth of the positioning hole 113 is greater than or equal to the length of the positioning column 112. A ring-shaped elastic thin valve plate 114 (the diameter of the elastic thin valve plate 114 is larger than the aperture of the water inlet hole 107) is provided around the lower half of the valve support 110 and can cover the water inlet hole 107. When the water pressure in the water storage tank 42 is greater than the water pressure in the water supply pipe 2 (i.e., a negative pressure difference is formed at the upper and lower ends of the water supply pipe 2), the elastic thin valve plate 114 is subjected to the upward water pressure and rises upward, thereby opening the water inlet hole 107, so that the water in the water storage tank 42 flows into the water supply pipe 2 through the water inlet hole 107, the hollow inner cavity 104 and the water hole 106 in sequence (to achieve the purpose of pumping water); when the water pump 32 stops running, under the action of the gravity of the water retained in the water supply pipe 2, the elastic thin valve plate 114 is subjected to the downward water pressure and is pressed against the water inlet hole 107 and seals the water inlet hole 107, thereby retaining the water in the water supply pipe 2 in the pipe (to achieve the purpose of preventing the water in the water supply pipe 2 from leaking).

2. Float type water valve

As shown in Figures 4 and 6, the one-way water valve 100 consists of a valve upper shell 101, a valve bottom shell 103 and a valve ball 115. The valve upper shell 101 is tubular with a hollow inner channel 105, and its upper end is connected to the water supply pipe 2, wherein the hollow inner channel 105 is divided into an upper section and a lower section, and a plurality of ball-blocking ribs 116, preferably three, are provided on the inner wall of the hollow inner channel 105 of the upper section, and the ball-blocking ribs 116 extend from top to bottom and protrude toward the axial direction of the hollow inner channel 105; the lower section is a columnar channel, and the valve ball 115 is placed in the lower section, and the ball diameter of the valve ball 115 is smaller than the diameter of the hollow inner channel 105 of the lower section, and larger than the diameter of the virtual annular hole enclosed by the connecting line of the lower ends of the plurality of ball-blocking ribs 116, that is, when the valve ball 115 floats upward, it will be intercepted by the ball-blocking ribs 116, and the space between two adjacent ball-blocking ribs 116 is a channel for water flow.

The valve bottom shell 103 is sealed with the valve upper shell 101, and the connection can be made in various ways in the prior art. A water inlet hole 107 is provided in the center of the valve bottom shell 103, which allows water in the water storage tank 42 to enter the hollow inner cavity 104, and a sealing gasket 117 is provided on the inner side of the water inlet hole 107 to surround the water inlet hole 107.

When the water pressure in the water tank 42 is greater than the water pressure in the water supply pipe 2, the valve ball 115 floats upward (the valve ball 115 is blocked at the lower end of the ball-blocking rib 116 as the water flows upward), the water inlet hole 107 is opened, and the water in the water tank 42 flows into the water supply pipe 2 through the water inlet hole 107 and the hollow inner channel 105 (to achieve the purpose of pumping water); when the water pump 32 stops running, under the action of the gravity of the water retained in the water supply pipe 2, the valve ball 115 is squeezed downward by the water above and blocked on the sealing gasket 117, thereby achieving the purpose of blocking the water inlet hole 107, thereby allowing the water in the water supply pipe 2 to remain in the pipe (to achieve the purpose of preventing the water in the water supply pipe 2 from leaking).

The valve ball 115 is preferably made of glass.

A bottom shell cover 108 is provided under the valve bottom shell 103 . The bottom shell cover 108 is a mesh structure. A filter cotton 109 for purifying and filtering incoming water is provided inside the bottom shell cover 108 .

3. Anchor type water valve

As shown in FIG. 4 and FIG. 7 , the one-way water valve 100 is composed of a valve upper shell 101 , a valve middle shell 102 , a valve bottom shell 103 and an anchor plug 119 disposed in the valve middle shell 102 .

The valve upper shell 101 and the valve middle shell 102 are both tubular with a hollow inner channel 105. The upper end of the valve upper shell 101 is connected to the water supply pipe 2, the lower end of the valve upper shell 101 is connected to the upper end of the valve middle shell 102, and the lower end of the valve middle shell 102 is connected to the valve bottom shell 103. The connection method between the three can adopt a sealing connection method in the prior art, such as ultrasonic welding connection, threaded screw connection or male and female buckle connection with a sealing ring.

A positioning sleeve 123 extending toward the axis of the housing is provided on the inner wall of the valve upper housing 101 .

A hollow truncated cone-shaped bottom tube 118 which converges toward the shell axis and extends downward is provided on the inner side wall of the valve middle shell 102 . The bottom of the bottom tube 118 is open, and the opening allows water in the water storage tank 42 to enter the water inlet hole 107 in the hollow inner channel 105 .

The valve bottom shell 103 is a plate shell with a mesh structure, on which a filter cotton 109 for purifying and filtering incoming water is arranged.

The anchor plug 119 is composed of a spherical or conical head 120 and a positioning center shaft 122 . A sealing gasket 121 is embedded on the outer circumferential wall of the head 120 , and the upper end of the positioning center shaft 122 is inserted into the positioning sleeve 123 .

When the water pressure in the water tank 42 is greater than the water pressure in the water supply pipe 2, the anchor plug 119 moves upward, the water inlet hole 107 is opened, and the water in the water tank 42 flows into the water supply pipe 2 through the water inlet hole 107 and the hollow inner channel 105 (to achieve the purpose of pumping water); when the water pump 32 stops running, under the action of the gravity of the water retained in the water supply pipe 2, the anchor plug 119 is squeezed downward by the water above, and its head 120 is inserted into the water inlet hole 107 and blocks the water inlet hole 107 together with the sealing gasket 121, thereby achieving the purpose of blocking the water inlet hole 107, thereby allowing the water in the water supply pipe 2 to remain in the pipe (to achieve the purpose of preventing the water in the water supply pipe 2 from leaking).

4. Duckbill water valve

As shown in FIG. 4 and FIG. 8 , the one-way water valve 100 is composed of a valve upper shell 101 , a valve bottom shell 103 , and a cone-shaped rubber valve 124 disposed in the valve upper shell 101 .

The valve upper shell 101 is tubular with a hollow inner passage 105. The upper end of the valve upper shell 101 is connected to the water supply pipe 2, and the lower end of the valve upper shell 101 is connected to the plate-shaped valve bottom shell 103. The valve bottom shell 103 is provided with a water inlet hole 107 that allows water in the water tank 42 to enter the hollow inner passage 105. The rubber valve 124 is inverted on the valve bottom shell 103 and covers the water inlet hole 107.

The bottom of the rubber valve 124 is provided with an annular edge extending toward the periphery, and the annular edge is clamped between the valve upper shell 101 and the valve bottom shell 103 to restrict the rubber valve 124 from drifting upward. A water hole 106 is provided at the top of the rubber valve 124 (i.e., the position of the cone top).

When the water pressure in the water storage tank 42 is greater than the water pressure in the water supply pipe 2, the soft conical surface 125 of the rubber valve 124 expands upward, the water hole 106 is opened, and the water in the water storage tank 42 flows into the water supply pipe 2 through the water inlet hole 107, the water hole 106 and the hollow inner channel 105 (to achieve the purpose of pumping water); when the water pump 32 stops running, under the action of the gravity of the water retained in the water supply pipe 2, the conical surface 125 of the rubber valve 124 collapses downward, and the water hole 106 is squeezed and closed, that is, the water inlet hole 107 is blocked, thereby keeping the water in the water supply pipe 2 in the pipe (to prevent the water in the water supply pipe 2 from leaking).

Claims (10)

1. A water supply assembly for a pet drinking fountain, comprising a water supply pipe (2), characterized in that the upper end of the water supply pipe (2) is sealedly connected to a water supply chamber (35) located at the top of a water dispenser housing (41), the lower end of the water supply pipe (2) is placed in the water of a water storage tank (42) of the water dispenser, a one-way water valve (100) is provided at the lower end of the water supply pipe (2) for sucking water in the water storage tank (42) into the water supply pipe (2) or retaining the existing water in the water supply pipe (2) in the water supply pipe (2) according to the operating state of a water pump (32) arranged in the water supply chamber (35), and a water purification filter assembly is provided on the one-way water valve (100). 2. The water supply assembly for a pet drinking fountain according to claim 1 is characterized in that: the one-way water valve (100) is composed of a valve upper shell (101), a valve bottom shell (103) and a valve support (110), the upper end of the valve upper shell (101) is communicated with the water supply pipe (2) and is sealed, the valve upper shell (101) and the valve bottom shell (103) are sealed and form a hollow inner cavity (104) therebetween, the valve support (110) is placed in the hollow inner cavity (104), a base frame plate (111) connected to the upper end of the valve support (110) is provided in the valve upper shell (101), and the base frame plate (111) connected to the upper end of the valve support (110) is provided in the valve upper shell (101). Water holes (106) are provided on both sides of the frame plate (111) for communicating the hollow inner cavity (104) with the water supply pipe (2); a water inlet hole (107) is provided on the bottom surface of the valve bottom shell (103) for allowing water in the water storage tank (42) to enter the hollow inner cavity (104); and an elastic thin valve sheet (114) is provided at the bottom of the valve support (110) for communicating the water inlet hole (107) with the hollow inner cavity (104) when the water pressure in the water storage tank (42) is greater than the water pressure in the water supply pipe (2), or for sealing the water inlet hole (107) when the water pressure in the water supply pipe (2) is greater than the water pressure in the water storage tank (42). 3. The water supply assembly for a pet drinking fountain according to claim 2 is characterized in that: the valve upper shell (101) is an integrated structure, which is divided into three sections from top to bottom, namely, an insertion section, a middle section and a connecting section, the insertion section is tubular, and is inserted upward into the water supply pipe (2), and is sealed therebetween; the middle section consists of an outer portion and a central portion, the cross-sectional shape of the outer portion is an "eight" shape, and the cross-sectional shape of the central portion is an inverted trapezoid, the lower bottom of the trapezoid is open and communicates with the insertion section, the base plate (111) is the upper bottom of the trapezoid, the outer portion is An annular water passage cavity is formed between the middle and the central part, the water passage holes (106) are arranged on the two waists of the trapezoid, and a positioning column (112) extending downward is provided on the lower surface of the base plate (111); the connecting section is trumpet-shaped, and its upper end is connected to the outer side of the middle section, and its lower end is connected to the valve bottom shell (103); the upper surface of the valve support column (110) is provided with a positioning hole (113) into which the positioning column (112) can be inserted, and the depth of the positioning hole (113) is greater than or equal to the length of the positioning column (112). 4. The water supply assembly for a pet drinking fountain according to claim 1 is characterized in that: the one-way water valve (100) is composed of a valve upper shell (101), a valve bottom shell (103) and a valve ball (115), the valve upper shell (101) is tubular with a hollow inner channel (105), and its upper end is connected to the water supply pipe (2), wherein the hollow inner channel (105) is divided into an upper section and a lower section, and a ball-blocking rib (116) extending from top to bottom and protruding toward the axial direction of the hollow inner channel (105) is provided on the inner wall of the hollow inner channel (105) of the upper section, and the lower section is a columnar channel, and the valve ball (115) is placed in the lower section, and the ball of the valve ball (115) is The valve bottom shell (103) is connected to the valve upper shell (101); a water inlet hole (107) is provided at the center of the valve bottom shell (103) so that water in the water storage tank (42) can enter the hollow inner cavity (104); a sealing gasket (117) is provided on the inner side of the water inlet hole (107) so that the water inlet hole (107) is connected to the hollow inner channel (105) when the water pressure in the water storage tank (42) is greater than the water pressure in the water supply pipe (2); or when the water pressure in the water supply pipe (2) is greater than the water pressure in the water storage tank (42), the water inlet hole (107) is pressed by the valve ball (115) and the water inlet hole (107) is sealed. 5. The water supply assembly for a pet drinking fountain according to claim 4, characterized in that there are three ball-blocking ribs (116). 6. The water supply assembly for a pet drinking fountain according to claim 1 is characterized in that: the one-way water valve (100) is composed of a valve upper shell (101), a valve middle shell (102) and an anchor plug (119) arranged in the valve middle shell (102), the valve upper shell (101) and the valve middle shell (102) are both tubular with a hollow inner channel (105), the upper end of the valve upper shell (101) is connected to the water supply pipe (2), the lower end of the valve upper shell (101) is connected to the upper end of the valve middle shell (102), and the one-way water valve (100) is connected to the one-way water valve (100). A bottom tube (118) extending downward and in the shape of a hollow truncated cone is provided on the inner side wall of the valve middle shell (102); the bottom of the bottom tube (118) is a water inlet hole (107) in the hollow inner channel (105) through which water in the water storage tank (42) can enter; the anchor plug (119) is detached from the water inlet hole (107) when the water pressure in the water storage tank (42) is greater than the water pressure in the water supply pipe (2); or is pressed against the water inlet hole (107) when the water pressure in the water supply pipe (2) is greater than the water pressure in the water storage tank (42). 7. The water supply assembly for a pet drinking fountain according to claim 6 is characterized in that: the anchor plug (119) is composed of a spherical or conical head (120) and a positioning center axis (122), and a sealing gasket (121) is embedded on the outer circumferential wall of the head (120). When the head (120) is inserted into the water inlet hole (107), the sealing gasket (121) is located between the inner wall of the bottom tube (118) and the outer wall of the head (120); a positioning sleeve (123) extending toward the shell axis is provided on the inner wall of the valve upper shell (101), and the upper end of the positioning center axis (122) is inserted into the positioning sleeve (123). 8. The water supply assembly for a pet drinking fountain according to claim 1, characterized in that: the one-way water valve (100) is composed of a valve upper shell (101), a valve bottom shell (103) and a rubber valve (124) in a cone-shaped tower arranged in the valve upper shell (101), the valve upper shell (101) is tubular with a hollow inner channel (105), the upper end of the valve upper shell (101) is connected to the water supply pipe (2), the lower end of the valve upper shell (101) is connected to the plate-shaped valve bottom shell (103), and the valve bottom shell (103) is connected to the water supply pipe (2). The hollow inner channel (105) is provided with a water inlet hole (107) for allowing water in the water storage tank (42) to enter the hollow inner channel (105); the rubber valve (124) is inverted on the valve bottom shell (103) and covers the water inlet hole (107); a water through hole (106) is provided at the top of the rubber valve (124); the water through hole (106) is opened when the water pressure in the water storage tank (42) is greater than the water pressure in the water supply pipe (2); or is closed when the water pressure in the water supply pipe (2) is greater than the water pressure in the water storage tank (42). 9. A water supply system for a pet drinking fountain, comprising a water supply chamber (35) arranged on the top of the drinking fountain case (41) and an impeller (323) type water pump (32) installed in the water supply chamber (35), wherein a water inlet (372) for pumping water in a water tank (42) arranged in the case (41) into the water supply chamber (35) through a water supply pipe (2) and a water outlet (375) for pumping clean water in the water supply chamber (35) into a pet drinking tray (43) are respectively provided on the bottom plate and the middle of the side plate of the water supply chamber (35), wherein the water supply assembly for a pet drinking fountain according to any one of claims 1 to 8 is provided at the lower end of the water supply pipe (2). 10. A pet drinking water machine, comprising a pet drinking water tray (43) arranged on the top of the drinking water machine, a water storage tank (42) arranged in a machine case (41), and a water supply system (3) that can purify and disinfect the water in the water storage tank (42) and then pump it into the pet drinking water tray (43) through a water pump (32), characterized in that: the water supply system (3) is the water supply system used in the pet drinking water machine as described in claim (9).