Safe-to-use pet water dispenser

Abstract

The pet water dispenser safe to use comprises a base and a water tank detachably arranged on the base, a water storage cavity is formed in the water tank, an upper water inlet assembly is arranged at the bottom of the water tank, and an upper water inlet channel communicated with the water storage cavity is formed in the upper water inlet assembly; a lower water inlet assembly is arranged in the base, and a lower water inlet channel is formed in the lower water inlet assembly. In addition, the centrifugal pump is arranged in the base and comprises a pump shell internally provided with a pump cavity, an impeller rotationally arranged in the pump cavity and a driving motor which is in transmission connection with the impeller to drive the impeller to rotate; the pump shell is further provided with a water inlet and a water outlet which are communicated with the pump cavity, and the water inlet is communicated with the lower water inlet channel. Therefore, the water tank and the base are arranged in a split mode, and the centrifugal pump is arranged in the base, so that water and electricity separation is achieved, the risk of electric leakage is fundamentally eliminated, and water drinking of pets is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of pet drinking fountains, in particular to a pet drinking fountain that is safe to use. Background Art

[0002] This section only provides background information related to the present application to help those skilled in the art understand the present application more thoroughly and accurately, and it is not necessarily prior art.

[0003] At present, with the development of economy and the improvement of people's living standards, keeping pets is becoming more and more common. Pets such as cats and dogs have become the best partners in people's lives. In the process of raising pets, the issue of pet diet hygiene has received more and more attention. People need to provide them with food and water regularly, so pet drinking fountains appeared.

[0004] Among them, the water pumps in most pet drinking fountains on the market are usually built into the water tank, which has the following shortcomings: first, since the power supply and signal control lines that control the water pump are placed in the water, the lines are prone to aging during long-term use, which may lead to leakage problems, which in turn may cause the pet to be at risk of electric shock, endangering the safety and health of the pet; secondly, when the water tank needs to be cleaned, since the water tank has a built-in water pump, it is also more troublesome to clean it; finally, the water pump built into the water tank is usually a submersible pump, which is more expensive and noisy. Utility Model Content

[0005] In order to overcome the defects of the prior art described above, the utility model provides a pet drinking fountain that is safe to use, so as to solve the problems mentioned in the above background technology.

[0006] The technical solution adopted by the utility model to solve the problem is:

[0007] A pet water dispenser that is safe to use, comprising a base and a water tank that is detachably arranged on the base, wherein:

[0008] A water storage cavity is provided inside the water tank, an upper water inlet assembly is provided at the bottom of the water tank, an upper water inlet channel connected to the water storage cavity is formed inside the upper water inlet assembly; a lower water inlet assembly is provided inside the base, a lower water inlet channel is formed inside the lower water inlet assembly; when the water tank is placed on the base, the upper water inlet assembly cooperates with the lower water inlet assembly to make the upper water inlet channel and the lower water inlet channel connected to each other;

[0009] In addition, it also includes a centrifugal pump arranged in the base, the centrifugal pump includes a pump casing with a pump chamber formed inside, an impeller rotatably arranged in the pump chamber, and a driving motor drivingly connected to the impeller to drive the impeller to rotate; the pump casing is also provided with a water inlet and a water outlet connected to the pump chamber, and the water inlet is connected to the lower water inlet channel.

[0010] Furthermore, the water inlet, the pump casing and the impeller are all coaxially arranged, a water inlet channel is formed inside the water inlet, and the water inlet channel is axially connected to the pump chamber; the water outlet is arranged in the tangential direction of the impeller, and a water outlet channel connected to the pump chamber is formed inside the water outlet.

[0011] Further, the pump housing comprises a front housing, a rear housing and a partition disposed between the front housing and the rear housing, wherein:

[0012] The pump chamber is formed inside the front shell, the water inlet is provided at the front end of the front shell, and the water outlet is provided at the side of the front shell;

[0013] The rear housing is connected to the rear end of the front housing, a mounting cavity is provided at the front end of the rear housing, the drive motor is mounted at the rear end of the rear housing, and the output shaft of the drive motor extends into the mounting cavity;

[0014] The partition separates the installation cavity from the pump cavity, and a fixed shaft is integrally formed at the front end of the partition, and the impeller is sleeved on the fixed shaft and can rotate around the axis direction of the fixed shaft;

[0015] The output shaft and the impeller are connected in transmission via a magnetic attraction component.

[0016] Furthermore, the magnetic attraction component includes an active magnetic ring sleeved on the output shaft and located in the installation cavity, and a driven magnetic ring arranged in the impeller and attracted to the active magnetic ring, and the active magnetic ring and the driven magnetic ring are non-contact matched.

[0017] Furthermore, a first conductive member partially extending into the bottom of the water storage chamber is provided at the bottom of the water tank, and a corresponding second conductive member is provided at a position corresponding to the first conductive member on the base. When the water tank is placed on the base, the first conductive member conflicts with the second conductive member.

[0018] In addition, the lower water inlet assembly also includes a third conductive member inserted into the lower water inlet channel, a power board is provided in the base, the second conductive member and the third conductive member are both electrically connected to the power board; the centrifugal pump is electrically connected to the power board;

[0019] When the water tank is placed on the base and there is water in the water storage chamber and the lower water inlet channel, the circuits among the first conductive member, the second conductive member, the power board and the third conductive member are connected, and the power board controls the centrifugal pump to work normally; when there is no water in the water storage chamber or the lower water inlet channel, the circuit is disconnected and the power board controls the centrifugal pump to stop working.

[0020] Further, the upper water inlet assembly includes an upper water inlet pipe connected to the bottom of the water tank and having the upper water inlet channel formed therein, an upper valve core movably arranged in the upper water inlet channel, a first sealing ring sleeved on the outer side wall of the upper valve core, and a first elastic member arranged between the upper valve core and the bottom of the water tank, wherein:

[0021] The bottom of the water tank is also provided with a water outlet hole which connects the water storage chamber and the upper water inlet channel respectively, and the upper valve core is inserted into the water outlet hole; under the elastic force of the first elastic member, the upper valve core can be driven to move and the first sealing ring can be abutted against the water outlet hole to achieve sealing.

[0022] Further, the lower water inlet assembly includes a first lower water inlet pipe, a second lower water inlet pipe, a lower valve core, a second sealing ring and a second elastic member, wherein:

[0023] The first lower water inlet pipe and the second lower water inlet pipe are arranged up and down, and the second lower water inlet pipe is sleeved on the outside of the first lower water inlet pipe; a first lower water inlet channel is formed inside the first lower water inlet pipe, and a second lower water inlet channel is formed inside the second lower water inlet pipe, and the first lower water inlet pipe is also provided with a first through hole respectively connecting the first lower water inlet channel and the second lower water inlet channel; the first lower water inlet channel, the first through hole and the second lower water inlet channel constitute the lower water inlet channel; the second lower water inlet pipe is provided with a water outlet joint connected to the water inlet on the pump housing;

[0024] The third conductive member is a metal rod inserted into the second lower water inlet pipe, the metal rod sequentially passes through the second lower water inlet channel and the first through hole and extends into the first lower water inlet channel, the lower valve core is sleeved on the metal rod and movably arranged in the first lower water inlet channel, the second sealing ring is sleeved on the metal rod and movably arranged in the second lower water inlet channel, and the second elastic member is arranged between the second sealing ring and the second lower water inlet pipe;

[0025] Under the elastic force of the second elastic member, the second sealing ring can be driven to move and abut against the first through hole to seal it.

[0026] Furthermore, a second through hole connected to the first lower water inlet channel is provided on the base, and when the water tank is placed on the base, the upper water inlet pipe can pass through the second through hole and extend into the first lower water inlet channel, wherein:

[0027] When the upper water inlet pipe extends into the first lower water inlet channel and reaches a certain position, the upper water inlet pipe drives the lower valve core to move downward and causes the second sealing ring to disengage from the first through hole to achieve communication between the first lower water inlet channel and the second lower water inlet channel. At the same time, the upper valve core is lifted up by the metal rod and causes the first sealing ring to disengage from the water outlet hole to achieve communication between the upper water inlet channel and the water storage chamber, thereby achieving mutual communication between the upper water inlet channel and the lower water inlet channel.

[0028] Furthermore, it also includes a water outlet assembly, which includes a water outlet pipe and a water outlet housing sleeved outside the water outlet pipe and connected to the base, and the water outlet on the pump housing is connected to the water inlet end of the water outlet pipe; a drinking water tray is provided on the top of the water tank, and the water outlet end of the water outlet pipe is located above the drinking water tray;

[0029] The water outlet pipe is provided with a UV sterilization and disinfection module.

[0030] Furthermore, it also includes a heating module, the heating module includes a heating plate and a power line electrically connected to the heating plate, wherein:

[0031] The top of the base is also provided with a first mounting groove for placing the heating plate and a second mounting groove connected to the first mounting groove and allowing the power cord to pass through;

[0032] When the water tank is placed on the base, the heating plate contacts the bottom of the water tank and heats the water in the water storage cavity.

[0033] In summary, the utility model provides a safe pet drinking fountain, which has the following features:

[0034] Beneficial effects:

[0035] (1) The pet drinking fountain of the utility model realizes water-electricity separation by separating the water tank from the base and arranging the centrifugal pump in the base, thereby fundamentally eliminating the risk of electric leakage and making it safer for pets to drink water; at the same time, placing the centrifugal pump externally also makes it more convenient for users to disassemble the water tank for cleaning; in addition, using a centrifugal pump as a water pump has low cost and low noise.

[0036] (2) The pet water dispenser of the present invention arranges the water inlet, pump casing and impeller coaxially so that the water inlet channel and the pump chamber are interconnected in the axial direction, so that the air trapped in the pump chamber can be discharged into the water inlet channel in time, thereby avoiding the air accumulation in the pump chamber and causing air binding, thereby achieving smooth water discharge and ensuring the reliable use of the pet water dispenser.

[0037] (3) The centrifugal pump of the pet drinking water dispenser of the utility model is detachable, so the user can disassemble it and clean the inside of the pump casing and the impeller, thereby avoiding the breeding of bacteria, thereby ensuring the cleanliness of drinking water and reducing safety hazards of drinking water.

[0038] (4) The pet drinking fountain of the utility model is characterized by respectively arranging a first conductive member and a second conductive member on the water tank and the base, and arranging a third conductive member in the lower water inlet channel, and the third conductive member and the second conductive member are electrically connected to the power board; in this way, when the water tank is placed on the base and there is water in the water storage chamber and the lower water inlet channel, the circuit formed by the first conductive member, the second conductive member, the power board and the third conductive member is in a conducting state, and the power board controls the centrifugal pump to work normally; when there is no water in the water storage chamber or there is a water blockage causing no water in the lower water inlet channel, the circuit is in a disconnected state, and the power board controls the centrifugal pump to stop working to avoid the centrifugal pump being emptied, thereby avoiding damage to the centrifugal pump, thereby ensuring the safety of the pet drinking fountain.

[0039] (5) The pet drinking water dispenser of the utility model is provided with a UV sterilization module. When the drinking water flows out from the water outlet pipe, it can sterilize and disinfect the drinking water, making the drinking water cleaner and more hygienic. By providing a heating module, the drinking water can be heated into warm water, thereby ensuring the gastrointestinal health of the pet. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is an explosion diagram of the pet water dispenser of the utility model;

[0041] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0042] Figure 3 This is a schematic diagram of the structure of the utility model pet drinking fountain;

[0043] Figure 4 It is a cross-sectional schematic diagram of the water tank and the water tray in the pet water dispenser of the utility model;

[0044] Figure 5 It is a cross-sectional schematic diagram of the base and the water outlet assembly of the pet water dispenser of the utility model;

[0045] Figure 6It is a cross-sectional schematic diagram of the pet drinking fountain of the utility model;

[0046] Figure 7 This is a partial structural schematic diagram of the pet water dispenser of the utility model;

[0047] Figure 8 It is a schematic diagram of the explosion of the centrifugal pump in the pet drinking fountain of the utility model;

[0048] Fig. 9 It is a structural schematic diagram of the front housing of the centrifugal pump of the utility model;

[0049] Fig.10 It is a cross-sectional schematic diagram of the centrifugal pump of the utility model.

[0050] The meanings of the reference numerals are as follows:

[0051] 1. Water tank; 11. Water storage chamber; 12. Upper water inlet assembly; 121. Upper water inlet pipe; 1211. Upper water inlet channel; 122. Upper valve core; 123. First sealing ring; 124. First elastic member; 13. First conductive member; 14. Convex edge; 15. Filter; 16. Water outlet; 2. Base; 21. Lower water inlet assembly; 211. First lower water inlet pipe; 2111. First lower water inlet channel; 2112. First through hole; 212. Second lower water inlet pipe; 2121. Second lower water inlet channel; 213. Third conductive member; 214. Lower valve core; 215. Second sealing ring; 216. Second elastic member; 22. Second conductive member; 23. Third sealing ring; 231. Convex edge; 24. Second through hole; 25. Centrifugal pump; 251. Front housing; 251 1. Pump cavity; 2512. Water inlet; 25121. Water inlet channel; 2513. Water outlet; 25131. Water outlet channel; 2514. First mounting hole; 252. Impeller; 253. Rear housing; 2531. Mounting cavity; 2532. Second mounting hole; 2533. Third mounting hole; 254. Driving motor; 2541. Output shaft; 2542. Fourth mounting hole; 255. Partition; 2551. Fixed shaft; 256. Fourth sealing ring; 257. Active magnetic block; 258. Locking screw; 259. Driven magnetic block; 26. Power board; 27. Indicator light; 28. Heating plate; 3. Water outlet assembly; 31. Water outlet housing; 32. Water outlet pipe; 33. Infrared sensor; 34. UV sterilization and disinfection module; 4. Water tray; 41. Notch. DETAILED DESCRIPTION

[0052] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0053] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0055] See also Figure 1-10 The utility model provides a safe pet drinking fountain, comprising a base 2 and a water tank 1 detachably placed on the base 2; wherein a water storage chamber 11 is provided inside the water tank 1, an upper water inlet assembly 12 is provided at the bottom of the water tank 1, an upper water inlet channel 1211 communicating with the water storage chamber 11 is formed inside the upper water inlet assembly 12; a lower water inlet assembly 21 is provided inside the base 2, a lower water inlet channel is formed inside the lower water inlet assembly 21; when the water tank 1 is placed on the base 2, the upper water inlet assembly 12 and the lower water inlet assembly 21 cooperate with each other and make the upper water inlet channel 1211 communicate with the lower water inlet channel.

[0056] In addition, it also includes a centrifugal pump 25 arranged in the base 2, a water outlet component 3 and a drinking water tray 4 covered on the top of the water tank 1, the centrifugal pump 25 includes a pump casing with a pump chamber 2511 formed therein, an impeller 252 rotatably arranged in the pump chamber 2511, and a driving motor 254 drivingly connected to the impeller 252 to drive the impeller 252 to rotate, the pump casing is also provided with a water inlet 2512 and a water outlet 2513 connected to the pump chamber 2511, the water inlet 2512 is connected to the lower water inlet channel; the water outlet component 3 includes a water outlet pipe 32 and a water outlet housing 31 sleeved on the outside of the water outlet pipe 32 and connected to the base 2, one end of the water outlet pipe 32 is connected to the water outlet 2513 on the pump casing, the water outlet end of the water outlet pipe 32 is located above the drinking water tray 4, and a notch connected to the water storage chamber 11 is opened on the drinking water tray 4.

[0057] Therefore, when the water tank 1 is placed on the base 2 and the centrifugal pump 25 is started, the water in the lower water inlet channel can be pumped out under the action of the impeller 252 and flow out to the drinking water tray 4 through the water inlet 2512, the pump chamber 2511, the water outlet 2513 and the water outlet pipe 32 in sequence, so that the water can be drunk by the pet.

[0058] The pet drinking fountain of the utility model realizes water-electricity separation by separating the water tank 1 and the base 2 and arranging the centrifugal pump 25 in the base 2, thereby fundamentally eliminating the risk of electric leakage and making it safer for pets to drink water; at the same time, placing the centrifugal pump 25 externally also makes it more convenient for users to disassemble the water tank 1 for cleaning; in addition, using the centrifugal pump 25 as a water pump has low cost and low noise.

[0059] See also Figure 8-10 Specifically, the pump casing includes a front casing 251, the front casing 251 is internally formed with the above-mentioned pump chamber 2511, and the impeller 252 is rotatably arranged in the pump chamber 2511; the front end of the front casing 251 is provided with the above-mentioned water inlet 2512, and the water inlet 2512, the front casing 251 and the impeller 252 are all coaxially arranged; the water inlet channel 25121 is formed inside the water inlet 2512, and the water inlet channel 25121 is axially connected with the pump chamber 2511; the side of the front casing 251 is provided with the above-mentioned water outlet 2513, and the water outlet 2513 is arranged in the tangential direction of the impeller 252, and the water outlet channel 25131 connected with the pump chamber 2511 is formed inside the water outlet 2513.

[0060] Therefore, during the normal operation of the centrifugal pump 25, the impeller 252 is driven to rotate, and the rotation of the impeller 252 forms a negative pressure in the pump chamber 2511. The water in the water storage chamber 11 can be discharged into the pump chamber 2511 through the upper water inlet channel and the lower water inlet channel. At the same time, under the action of the centrifugal force of the impeller 252, the water in the pump chamber 2511 can be discharged through the water outlet 2513.

[0061] It should be noted that when the axis of the water inlet 2512 and the axis of the front shell 251 are arranged perpendicular to each other, that is, the water inlet channel 25121 is connected to the pump chamber 2511 by a bend, when water is quickly introduced into the pump chamber 2511, the air in the pump chamber 2511 will not have time to be discharged, and the air will be trapped in the pump chamber 2511. Since the density of air is much lower than that of liquid, the centrifugal force generated by the rotation of the impeller 252 is relatively small, and the low pressure formed in the center area of ​​the impeller 252 cannot draw drinking water into the pump. In this case, air binding will occur, causing the centrifugal pump 25 to be evacuated. In order to solve the above-mentioned problem, the present application arranges the water inlet 2512, the front shell 251 and the impeller 252 coaxially, so that the water inlet channel 25121 and the pump chamber 2511 are interconnected in the axial direction, so that the air trapped in the pump chamber 2511 can be discharged into the water inlet channel 25121 in time, thereby avoiding the accumulation of air in the pump chamber 2511 and causing air binding, thereby achieving smooth water discharge and ensuring the reliable use of the pet water dispenser.

[0062] Furthermore, the centrifugal pump 25 also includes a rear housing 253, the front end of which is formed with a mounting cavity 2531, the drive motor 254 is mounted at the rear end of the rear housing 253 and the output shaft 2541 of the drive motor 254 extends into the mounting cavity 2531; the output shaft 2541 and the impeller 252 are connected in transmission via a magnetic attraction component. Specifically, the magnetic attraction component includes an active magnetic block 257 sleeved on the output shaft 2541 and located in the mounting cavity 2531, and a driven magnetic block 259 disposed in the impeller 252 and adsorbed with the active magnetic block 257. When the drive motor 254 is started and the output shaft 2541 is driven to rotate, the active magnetic block 257 and the driven magnetic block 259 can be adsorbed and cooperated to drive the impeller 252 to rotate.

[0063] Among them, the front shell 251 is rectangular and has four corners with first mounting holes 2514. Correspondingly, the rear shell 253 is provided with second mounting holes 2532 corresponding to the first mounting holes 2514. Therefore, the connection between the front shell 251 and the rear shell 253 can be achieved by passing the locking screw 258 through the first mounting hole 2514 and fixing it in the second mounting hole 2532. Preferably, the first mounting hole 2514 is a through hole, and the second mounting hole 2532 is a screw hole.

[0064] Similarly, the rear shell 253 is also provided with a third mounting hole 2533 located in the mounting cavity 2531, and the drive motor 254 is provided with a fourth mounting hole 2542 at a position corresponding to the third mounting hole 2533; thus, the connection between the rear shell 253 and the drive motor 254 can be achieved by passing a locking screw 258 through the third mounting hole 2533 and fixing it in the fourth mounting hole 2542; preferably, the third mounting hole 2533 is a through hole, and the fourth mounting hole 2542 is a screw hole.

[0065] Furthermore, it also includes a partition plate 255 disposed between the front housing 251 and the rear housing 253 and used to separate the pump chamber 2511 from the installation chamber 2531. The front end of the partition plate 255 is integrally formed with a fixed shaft 2551. The impeller 252 is sleeved on the fixed shaft 2551 and can rotate around the fixed shaft 2551. In addition, it also includes a fourth sealing ring 256 disposed between the front end of the partition plate 255 and the rear end of the front housing 251. When the front housing 251 is connected to the rear housing 253, the upper and lower ends of the fourth sealing ring 256 are respectively in contact with the front housing 251 and the partition plate 255 to achieve waterproof sealing, thereby preventing water from entering the rear housing 253.

[0066] Of course, in other embodiments, a second sealing ring may also be provided between the rear end of the partition 255 and the front end of the rear shell 253. When the front shell 251 is connected to the rear shell 253, the second sealing ring abuts against the rear shell 253 and the partition 255 respectively to achieve a waterproof seal, thereby further improving the waterproof performance of the centrifugal pump 25.

[0067] Therefore, in the pet drinking water dispenser of the present invention, the centrifugal pump 25 is detachable, so the user can disassemble it and clean the front housing 251 and the impeller 252 to avoid the growth of bacteria, thereby ensuring the cleanliness of drinking water and reducing safety hazards of drinking water.

[0068] See also Figure 1-7 The bottom of the water tank 1 is also penetrated with a first conductive member 13 that partially extends into the bottom of the water storage chamber 11, and the position of the base 2 corresponding to the first conductive member 13 is provided with a corresponding second conductive member 22. When the water tank 1 is placed on the base 2, the first conductive member 13 conflicts with the second conductive member 22. In addition, the lower water inlet assembly 21 also includes a third conductive member 213 penetrated in the lower water inlet channel, and a power supply board 26 is provided in the base 2, and the second conductive member 22 and the third conductive member 213 are both electrically connected to the power supply board 26.

[0069] With such arrangement, when the water tank 1 is placed on the base 2 and there is water in both the water storage chamber 11 and the lower water inlet channel, the first conductive member 13 and the third conductive member 213 are in contact with water, and the circuit formed between the first conductive member 13, the second conductive member 22, the power board 26 and the third conductive member 213 is in a conducting state, and the power board 26 obtains a water signal and controls the centrifugal pump 25 to work normally; when there is no water in the water storage chamber 11 or there is a water blockage causing no water in the lower water inlet channel, the first conductive member 13 or the third conductive member 213 is not in contact with water, and the circuit is in a disconnected state, and the power board 26 obtains a water shortage signal and controls the centrifugal pump 25 to stop working. Therefore, the pet water dispenser of the utility model can simultaneously detect water shortage and water blockage, thereby improving the reliability of the product.

[0070] See also Figure 4 The upper water inlet assembly 12 includes an upper water inlet pipe 121 connected to the bottom of the water tank 1 and having an upper water inlet channel 1211 formed therein, an upper valve core 122 movably disposed in the upper water inlet channel 1211, a first sealing ring 123 sleeved on the outer wall of the upper valve core 122, and a first elastic member 124 disposed between the upper valve core 122 and the water tank 1. The bottom of the water tank 1 is also provided with a water outlet hole 16 respectively connecting the water storage chamber 11 and the upper water inlet channel 1211, and the upper valve core 122 is penetrated in the water outlet hole 16. Therefore, under the elastic force of the first elastic member 124, the upper valve core 122 can be driven to move and the first sealing ring 123 can be abutted against the water outlet hole 16 to achieve sealing.

[0071] Preferably, the first elastic member 124 is a spring, which is sleeved on the upper valve core 122 and has one end abutting against the upper valve core 122 and the other end abutting against the bottom of the water tank 1 ; the upper water inlet pipe 121 is integrally formed at the bottom of the water tank 1 .

[0072] Therefore, when the water tank 1 is separated from the base 2, the upper valve core 122 moves downward under the elastic force of the first elastic member 124 and makes the first sealing ring 123 abut against the water outlet 16 to achieve sealing, thereby preventing the water in the water storage chamber 11 from flowing out; when the water tank 1 is placed on the base 2, the upper valve core 122 is lifted up and drives the first sealing ring 123 to separate from the water outlet 16, thereby achieving communication between the water storage chamber 11 and the upper water inlet channel 1211 to achieve water discharge.

[0073] In addition, the water tank 1 is further provided with a flange 14 located at the bottom of the water storage chamber 11 and arranged around the outer periphery of the water outlet 16. A filter screen 15 is sleeved on the flange 14, and the filter screen 15 can filter the water in the water storage chamber 11 to avoid clogging.

[0074] See also Figure 5-6 The lower water inlet assembly 21 includes a first lower water inlet pipe 211, a second lower water inlet pipe 212, a lower valve core 214, a second sealing ring 215 and a second elastic member 216. The first lower water inlet pipe 211 and the second lower water inlet pipe 212 are arranged up and down and the second lower water inlet pipe 212 is sleeved on the outside of the first lower water inlet pipe 211. A first lower water inlet channel 2111 is formed inside the first lower water inlet pipe 211, and a second lower water inlet channel 2121 is formed inside the second lower water inlet pipe 212. The first lower water inlet pipe 211 is provided with a first through hole 2112 which respectively connects the first lower water inlet channel 2111 and the second lower water inlet channel 2121; thus, the first lower water inlet channel 2111, the first through hole 2112 and the second lower water inlet channel 2121 constitute a lower water inlet channel. Among them, the third conductive member 213 is a metal rod penetrated on the second lower water inlet pipe 212, and the metal rod passes through the second lower water inlet channel 2121 and the first through hole 2112 in sequence and extends into the first lower water inlet channel 2111, the lower valve core 214 is sleeved on the metal rod and movably arranged in the first lower water inlet channel 2111, the second sealing ring 215 is sleeved on the metal rod and movably arranged in the second lower water inlet channel 2121, and the second elastic member 216 is arranged between the second sealing ring 215 and the second lower water inlet pipe 212; thus, under the elastic force of the second elastic member 216, the second sealing ring 215 can be driven to move and abut against the first through hole 2112 to seal the first through hole 2112.

[0075] Preferably, the second elastic member 216 is also a spring, which is sleeved in the second lower water inlet pipe 212 and has one end abutting against the second lower water inlet pipe 212 and the other end abutting against the second sealing ring 215 .

[0076] Therefore, when the water tank 1 is separated from the base 2, the second sealing ring 215 moves upward under the elastic force of the second elastic member 216 and abuts against the first through hole 2112 to achieve sealing, thereby preventing the water in the second lower water inlet channel 2121 from flowing back; when the water tank 1 is placed on the base 2, the lower valve core 214 is pressed downward and drives the second sealing ring 215 to move downward to disengage from the first through hole 2112, thereby achieving the connection between the first lower water inlet channel 2111 and the second lower water inlet channel 2121 to achieve water discharge.

[0077] The base 2 is provided with a second through hole 24 connected to the first lower water inlet channel 2111. When the water tank 1 is placed on the base 2, the upper water inlet pipe 121 can pass through the second through hole 24 and extend into the first lower water inlet channel 2111. When the upper water inlet pipe 121 extends into the first lower water inlet channel 2111 and reaches a certain position, the upper water inlet pipe 121 drives the lower valve core 214 to move downward and the second sealing ring 215 to be separated from the first through hole 2112 to achieve the communication between the first lower water inlet channel 2111 and the second lower water inlet channel 2121. At the same time, the upper valve core 122 is lifted by the metal rod and the first sealing ring 123 is separated from the water outlet hole 16 to achieve the communication between the upper water inlet channel 1211 and the water storage chamber 11, thereby achieving the mutual communication between the upper water inlet channel 1211 and the lower water inlet channel.

[0078] In addition, it also includes a third sealing ring 23 arranged at the second through hole 24 and located between the base 2 and the first lower water inlet pipe 211, and the inner wall of the third sealing ring 23 is ringed with a convex edge 231; when the upper water inlet pipe 121 extends into the first lower water inlet channel 2111, the convex edge 231 abuts against the outer wall of the upper water inlet pipe 121 to achieve a waterproof seal, thereby preventing the water in the water tank 1 from entering the base 2 and damaging other components when the water tank 1 is placed on the base 2.

[0079] In this embodiment, the first conductive member 13 is a first metal nail passed through the bottom of the water tank 1, and the second conductive member 22 is a second metal nail passed through the top of the base 2. When the water tank 1 is placed on the base 2, the first metal nail abuts against the second metal nail to achieve electrical connection.

[0080] See also Figure 1 and Figure 7The pet water dispenser further includes an indicator light 27 disposed on the base 2, and the indicator light 27 is electrically connected to the power board 26. Thus, when the water tank 1 is placed on the base 2 and there is water in both the water storage chamber 11 and the lower water inlet channel, the power board 26 receives a water signal and controls the indicator light 27 to be off; when there is no water in the water storage chamber 11 or the lower water inlet channel, the power board 26 controls the indicator light 27 to light up to remind the user to add water.

[0081] See also Figure 5-6 Furthermore, an infrared sensor 33 for sensing the approach of a pet is installed on the water outlet housing 31, and the infrared sensor 33 is electrically connected to the power board 26; when the pet approaches the water tank 1 and is sensed by the infrared sensor 33, the infrared sensor 33 sends a signal to the power board 26, and the power board 26 controls the centrifugal pump 25 to operate to achieve water discharge.

[0082] In addition, a UV sterilization and disinfection module 34 is provided on the water outlet pipe 32 of the pet water dispenser. The UV sterilization and disinfection module 34 includes a mounting bracket arranged on the water outlet pipe 32 and a UV lamp board arranged on the mounting bracket. The ultraviolet light emitted by the UV lamp board can pass through the water outlet pipe 32 and irradiate the inside of the water outlet pipe 32 to sterilize and disinfect the drinking water, making the drinking water cleaner and more hygienic.

[0083] Furthermore, the pet water dispenser also includes a heating module, which includes a heating plate 28 and a power cord electrically connected to the heating plate 28. The top of the base 2 is also provided with a first mounting groove for placing the heating plate 28 and a second mounting groove connected to the first mounting groove and through which the power cord can pass. Therefore, when the water tank 1 is placed on the base 2, the heating plate 28 contacts the bottom of the water tank 1 and heats the water in the water storage chamber 11, so that the drinking water can be heated into warm water, thereby ensuring the gastrointestinal health of the pet.

[0084] In summary, the utility model provides a safe pet drinking fountain, which has the following features:

[0085] Beneficial effects:

[0086] (i) The pet drinking fountain of the utility model realizes water-electricity separation by separating the water tank 1 from the base 2 and arranging the centrifugal pump 25 in the base 2, thereby fundamentally eliminating the risk of electric leakage, making it safer for pets to drink water; at the same time, placing the centrifugal pump 25 externally also makes it more convenient for users to disassemble and clean the water tank 1; in addition, using the centrifugal pump 25 as a water pump has low cost and low noise.

[0087] (ii) The pet water dispenser of the present invention arranges the water inlet 2512, the pump casing and the impeller 252 coaxially so that the water inlet channel 25121 and the pump chamber 2511 are axially connected to each other, so that the air trapped in the pump chamber 2511 can be discharged into the water inlet channel 25121 in time, thereby avoiding the air accumulation in the pump chamber 2511 and causing air binding, thereby achieving smooth water discharge and ensuring the reliable use of the pet water dispenser.

[0088] (III) In the pet drinking water dispenser of the present invention, the centrifugal pump 25 is detachable, so the user can disassemble it and clean the inside of the pump casing and the impeller 252, thereby avoiding the breeding of bacteria, thereby ensuring the cleanliness of the drinking water and reducing the potential safety hazards of the drinking water.

[0089] (IV) The pet drinking fountain of the utility model is provided with a first conductive member 13 and a second conductive member 22 on the water tank 1 and the base 2 respectively, and a third conductive member 213 is provided in the lower water inlet channel, and the third conductive member 213 and the second conductive member 22 are both electrically connected to the power board 26; in this way, when the water tank 1 is placed on the base 2 and there is water in both the water storage chamber 11 and the lower water inlet channel, the circuit formed by the first conductive member 13, the second conductive member 22, the power board 26 and the third conductive member 213 is in a conducting state, and the power board 26 controls the centrifugal pump 25 to work normally; when there is no water in the water storage chamber 11 or there is a water blockage in the lower water inlet channel, the circuit is in a disconnected state, and the power board 26 controls the centrifugal pump 25 to stop working to avoid the centrifugal pump 25 from being evacuated, thereby avoiding damage to the centrifugal pump 25, thereby ensuring the safety of the pet drinking fountain.

[0090] (V) The pet drinking water dispenser of the present invention is provided with a UV sterilization module 34. When drinking water flows out from the water outlet pipe 32, it can sterilize and disinfect the drinking water, making the drinking water cleaner and more hygienic. By providing a heating module, the drinking water can be heated into warm water, thereby ensuring the gastrointestinal health of the pet.

[0091] It should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0092] In addition, in the description of the present utility model, "multiple" and "several" mean two or more than two, unless otherwise clearly and specifically defined.

[0093] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A safe pet drinking fountain, characterized in that: It comprises a base and a water tank detachably arranged on the base, wherein: A water storage cavity is provided inside the water tank, an upper water inlet assembly is provided at the bottom of the water tank, an upper water inlet channel connected to the water storage cavity is formed inside the upper water inlet assembly; a lower water inlet assembly is provided inside the base, a lower water inlet channel is formed inside the lower water inlet assembly; when the water tank is placed on the base, the upper water inlet assembly cooperates with the lower water inlet assembly to make the upper water inlet channel and the lower water inlet channel connected to each other; In addition, it also includes a centrifugal pump arranged in the base, the centrifugal pump includes a pump casing with a pump chamber formed inside, an impeller rotatably arranged in the pump chamber, and a driving motor drivingly connected to the impeller to drive the impeller to rotate; the pump casing is also provided with a water inlet and a water outlet connected to the pump chamber, and the water inlet is connected to the lower water inlet channel.

2. The pet drinking fountain according to claim 1, characterized in that: The water inlet, the pump casing and the impeller are all coaxially arranged, a water inlet channel is formed inside the water inlet, and the water inlet channel is axially connected to the pump chamber; the water outlet is arranged in the tangential direction of the impeller, and a water outlet channel connected to the pump chamber is formed inside the water outlet.

3. The pet drinking fountain according to claim 2, characterized in that: The pump housing comprises a front housing, a rear housing and a partition plate arranged between the front housing and the rear housing, wherein: The pump chamber is formed inside the front shell, the water inlet is provided at the front end of the front shell, and the water outlet is provided at the side of the front shell; The rear housing is connected to the rear end of the front housing, a mounting cavity is provided at the front end of the rear housing, the drive motor is mounted at the rear end of the rear housing, and the output shaft of the drive motor extends into the mounting cavity; The partition separates the installation cavity from the pump cavity, and a fixed shaft is integrally formed at the front end of the partition, and the impeller is sleeved on the fixed shaft and can rotate around the axis direction of the fixed shaft; The output shaft and the impeller are connected in transmission via a magnetic attraction component.

4. The pet drinking fountain according to claim 3, characterized in that: The magnetic attraction component includes an active magnetic ring sleeved on the output shaft and located in the installation cavity, and a driven magnetic ring arranged in the impeller and attracted to the active magnetic ring, and the active magnetic ring and the driven magnetic ring are non-contact matched.

5. The pet drinking fountain according to any one of claims 1 to 4, characterized in that: The bottom of the water tank is also provided with a first conductive member partially extending into the bottom of the water storage chamber, and a corresponding second conductive member is provided at a position corresponding to the first conductive member on the base. When the water tank is placed on the base, the first conductive member conflicts with the second conductive member; In addition, the lower water inlet assembly also includes a third conductive member inserted into the lower water inlet channel, a power board is provided in the base, the second conductive member and the third conductive member are both electrically connected to the power board; the centrifugal pump is electrically connected to the power board; When the water tank is placed on the base and there is water in the water storage chamber and the lower water inlet channel, the circuits among the first conductive member, the second conductive member, the power board and the third conductive member are connected, and the power board controls the centrifugal pump to work normally; when there is no water in the water storage chamber or the lower water inlet channel, the circuit is disconnected and the power board controls the centrifugal pump to stop working.

6. The pet drinking fountain according to claim 5, characterized in that: The upper water inlet assembly includes an upper water inlet pipe connected to the bottom of the water tank and having the upper water inlet channel formed therein, an upper valve core movably arranged in the upper water inlet channel, a first sealing ring sleeved on the outer side wall of the upper valve core, and a first elastic member arranged between the upper valve core and the bottom of the water tank, wherein: The bottom of the water tank is also provided with a water outlet hole which connects the water storage chamber and the upper water inlet channel respectively, and the upper valve core is inserted into the water outlet hole; under the elastic force of the first elastic member, the upper valve core can be driven to move and the first sealing ring can be abutted against the water outlet hole to achieve sealing.

7. The pet drinking fountain according to claim 6, characterized in that: The lower water inlet assembly comprises a first lower water inlet pipe, a second lower water inlet pipe, a lower valve core, a second sealing ring and a second elastic member, wherein: The first lower water inlet pipe and the second lower water inlet pipe are arranged up and down, and the second lower water inlet pipe is sleeved on the outside of the first lower water inlet pipe; a first lower water inlet channel is formed inside the first lower water inlet pipe, and a second lower water inlet channel is formed inside the second lower water inlet pipe, and the first lower water inlet pipe is also provided with a first through hole respectively connecting the first lower water inlet channel and the second lower water inlet channel; the first lower water inlet channel, the first through hole and the second lower water inlet channel constitute the lower water inlet channel; the second lower water inlet pipe is provided with a water outlet joint connected to the water inlet on the pump housing; The third conductive member is a metal rod inserted into the second lower water inlet pipe, the metal rod sequentially passes through the second lower water inlet channel and the first through hole and extends into the first lower water inlet channel, the lower valve core is sleeved on the metal rod and movably arranged in the first lower water inlet channel, the second sealing ring is sleeved on the metal rod and movably arranged in the second lower water inlet channel, and the second elastic member is arranged between the second sealing ring and the second lower water inlet pipe; Under the elastic force of the second elastic member, the second sealing ring can be driven to move and abut against the first through hole to seal it.

8. The pet drinking fountain according to claim 7, characterized in that: The base is provided with a second through hole connected to the first lower water inlet channel. When the water tank is placed on the base, the upper water inlet pipe can pass through the second through hole and extend into the first lower water inlet channel, wherein: When the upper water inlet pipe extends into the first lower water inlet channel and reaches a certain position, the upper water inlet pipe drives the lower valve core to move downward and causes the second sealing ring to disengage from the first through hole to achieve communication between the first lower water inlet channel and the second lower water inlet channel. At the same time, the upper valve core is lifted up by the metal rod and causes the first sealing ring to disengage from the water outlet hole to achieve communication between the upper water inlet channel and the water storage chamber, thereby achieving mutual communication between the upper water inlet channel and the lower water inlet channel.

9. The pet drinking fountain according to any one of claims 1 to 4, characterized in that: It also includes a water outlet assembly, which includes a water outlet pipe and a water outlet housing sleeved outside the water outlet pipe and connected to the base, and the water outlet on the pump housing is connected to the water inlet end of the water outlet pipe; a water drinking tray is provided on the top of the water tank, and the water outlet end of the water outlet pipe is located above the water drinking tray; The water outlet pipe is provided with a UV sterilization and disinfection module.

10. The pet drinking fountain according to any one of claims 1 to 4, characterized in that: It also includes a heating module, the heating module includes a heating plate and a power line electrically connected to the heating plate, wherein: The top of the base is also provided with a first mounting groove for placing the heating plate and a second mounting groove connected to the first mounting groove and allowing the power cord to pass through; When the water tank is placed on the base, the heating plate contacts the bottom of the water tank and heats the water in the water storage cavity.

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