CN220511898U - Pet drinking machine - Google Patents

Abstract

The utility model discloses a pet water dispenser, which comprises a water tank assembly, a case assembly and a water pump, wherein the water tank assembly comprises a water storage tank and a water trough, the water storage tank defines a water storage cavity with a top opening, the water trough is detachably arranged at the top of the water storage tank, the water trough comprises a trough body and a delay edge, the delay edge extends from the circumferential edge of the trough body to a direction far away from the trough body, the case assembly comprises a shell, the shell comprises a pressing part and a limiting part, the pressing part is abutted with the delay edge of the water trough to press the water tank assembly, the limiting part is matched with the side wall edge of the water storage tank and/or the water trough to limit the water tank assembly, the water pump is arranged in the water storage tank or the shell, and the water pump is used for discharging the water in the water storage tank to the water trough. The pet water dispenser can effectively avoid the separation of the water tank component and the case component, and ensure the durable use of the pet water dispenser.

Description

Pet drinking machine

Technical Field

The utility model relates to the field of pet supplies, in particular to a pet water dispenser.

Background

The pet drinking flowing water may achieve a more fresh and fresh drinking experience than a traditional static water bowl. This trend has made pet drinking machines a focus of attention for many pet owners, and more people choose it as a drinking tool for pets. The existing pet water dispenser has the problem that the connection between a case and a water tank is not firm enough. When the pet carelessly hits the water dispenser in the water drinking process, the case and the water tank are easy to separate.

Disclosure of Invention

The utility model mainly aims to provide a pet water dispenser, which aims to solve the problem that a water tank component and a case component are easy to separate when the existing pet water dispenser is impacted.

In order to achieve the above object, the present utility model provides a pet drinking machine, wherein the pet drinking machine comprises:

the water tank assembly comprises a water storage tank and a water trough, the water storage tank is defined with a water storage cavity with an opening at the top, the water trough is detachably arranged at the top of the water storage tank, the water trough comprises a tank body and a delay edge, and the delay edge extends from the circumferential edge of the tank body to a direction far away from the tank body;

the case assembly comprises a shell, the shell comprises a pressing part and a limiting part, the pressing part is abutted with the extension edge of the water trough to press the water tank assembly, and the limiting part is matched with the side wall edge of the water storage tank and/or the water trough to limit the water tank assembly; the method comprises the steps of,

the water pump is arranged in the water storage tank or the shell and is used for discharging the water in the water storage cavity to the water trough.

According to the technical scheme provided by the utility model, the case component is abutted with the extension edge of the water trough arranged at the top of the water storage tank through the pressing part, and meanwhile, the case component is in limit fit with the side wall edge of the water storage tank and/or the water trough through the limit part, so that the case component and the water trough component are tightly connected through the design, the high stability is achieved, the separation of the water trough component and the case component can be effectively avoided, and the lasting use of the pet water dispenser is further ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of a pet drinking machine provided by the utility model;

FIG. 2 is a front view of the pet drinking machine of FIG. 1;

FIG. 3 is a cross-sectional view taken along section A-A in FIG. 2;

FIG. 4 is an enlarged view of the trough and primary filter layer of FIG. 3;

FIG. 5 is a schematic perspective view of the trough and primary filter layer of FIG. 3;

FIG. 6 is a side view of the chassis assembly of FIG. 1;

FIG. 7 is a cross-sectional view of the chassis assembly of FIG. 1;

FIG. 8 is a cross-sectional view of the chassis assembly of FIG. 1;

fig. 9 is a perspective view of the waterway assembly of fig. 7.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Fig. 1 to 9 are specific embodiments of a pet drinking machine provided by the present utility model.

Referring to fig. 1 to 3, the pet drinking machine 100 includes a water tank assembly 1, a case assembly 2 and a water pump 27, the water tank assembly 1 includes a water storage tank 11 and a water trough 12, the water storage tank 11 defines a water storage cavity with a top opening, the water trough 12 is detachably mounted on the top of the water storage tank 11, the water trough 12 includes a tank body 121 and a extension 122, the extension 122 extends from a circumferential edge of the tank body 121 to a direction away from the tank body 121, the case assembly 2 includes a housing 21, the housing 21 includes a pressing portion 211 and a limiting portion 212, the pressing portion 211 abuts against the extension 122 of the water trough 12 to press the water tank assembly 1, the limiting portion 212 cooperates with a side wall edge of the water storage tank 11 to limit the water tank assembly 1, the water pump 27 is disposed in the water storage tank 11 or in the housing 21, and the water pump 27 is used for discharging the water pump 27 in the water storage tank 11 to the water trough 12.

In the embodiment disclosed in fig. 3, the drinking trough 12 is integrally embedded in the water storage tank 11, specifically: the first step part 111 of the inside wall of the water storage tank 11, the extension 122 of the water trough 12 is detachably mounted on the first step part 111, at this time, the top of the water storage tank 11 is higher than the top of the water trough 12, and the edge of the side wall of the water storage tank 11 is exposed to be matched with the limit part 212. It will be apparent to those skilled in the art that there are at least the following ways: in the mode 1, a hanging groove (not shown) is formed in the extended edge of the water trough 12, the side wall edge of the water tank 11 stretches into the hanging groove of the water trough 12, at the moment, the top of the water trough 12 is higher than the top of the water tank 11, and the side wall edge of the water trough 12 is exposed out of the limiting part 212 to limit the water tank assembly 1; in mode 2, the inner wall of the drinking trough 12 and the outer wall of the water storage tank 11 form opposite side walls connected to the limiting portion 212.

In the technical scheme provided by the utility model, the case component 2 is connected with the extension edge 122 of the water trough 12 arranged at the top of the water storage tank 11 through the pressing part 211, and meanwhile, the case component 2 is in limit fit with the side wall edge of the water storage tank 11 and/or the water trough 12 through the limit part 212, so that the case component 2 and the water trough component 1 are tightly connected through the design, the high stability is achieved, the separation of the water trough component 1 and the case component 2 can be effectively avoided, and the lasting use of the pet water dispenser 100 is ensured.

In this embodiment, as shown in fig. 3, the housing 21 includes a housing body 213 and a housing boss 214, the housing boss 214 is disposed on the housing body 213 and protrudes outside the housing body 213, the lower end surface of the housing boss 214 is a pressing portion 211, the housing boss 214 faces the inner peripheral wall of the housing body 213 and encloses with the housing body 213 to form a clamping groove 212a with a downward opening, and the clamping groove 212a is a limiting portion 212. The arrangement positions of the pressing part 211 and the limiting part 212 enable the connection between the case assembly 2 and the water tank assembly 1 to be more compact.

As shown in fig. 2, the housing boss 214 is provided with a pyroelectric sensor 28, and the pyroelectric sensor 28 is used to determine whether an animal has come in the vicinity of the pet drinking machine 100. If the pyroelectric sensor 28 senses that an animal comes near the pet drinking machine 100, the pet drinking machine 100 drives the water pump 27 to operate so that water flows.

As shown in fig. 3, the inner side wall of the water storage tank 11 has a first step portion 111, and the extension 122 of the water trough 12 is detachably mounted on the first step portion 111, i.e. the top of the water storage tank 11 is higher than the top of the water trough 12, and the edge of the side wall of the water storage tank 11 is exposed and matched with the limit portion 212. So arranged, even if the pet drinking machine 100 is knocked by a pet to topple over, the drinking trough 12 is not easily separated from the water storage tank 11.

The relation between the top of the water storage tank and the top of the water trough in the prior art is almost as follows: the top of the water trough is higher than the top of the water storage tank (if the water trough is provided with a clamping groove clamped in the water storage tank), or the top of the water drinking basin is flush with the top of the water storage tank. The embodiment of the utility model provides a novel assembly form: namely, the drinking trough 12 is integrally embedded into the water storage cavity, specifically: a first step part 111 on the inner side wall of the water storage tank 11, a extension edge 122 of the water trough 12 is detachably arranged on the first step part 111, and at the moment, the top of the water storage tank 11 is higher than the top of the water trough 12, so that the edge of the side wall of the water storage tank 11 can be exposed to be matched with the limit part 212; meanwhile, the pressing part 211 is abutted against the extended edge 122 of the water trough 12 to press the water tank assembly 1, so that the case assembly is tightly connected with the water tank assembly, and the separation of the water tank assembly and the case assembly can be effectively avoided.

In this embodiment, as shown in fig. 5, the groove wall of the clamping groove 212a is provided with an elastic protrusion 215, the elastic protrusion 215 can limit the side wall edge of the water storage tank 11 from being separated from the clamping groove 212a, and because the friction force of the elastic material of the elastic protrusion 215 is larger, the side wall edge of the water storage tank 11 can be better limited from being separated from the clamping groove 212a, and the elastic material has deformation capability, so that a user can take out the water storage tank 11 more conveniently.

It can be understood that in fig. 3, the side wall edge of the water tank 11 is exposed to cooperate with the limiting portion 212, and at this time, the slot wall of the clamping slot 212a is provided with an elastic protrusion 215 for abutting against the side wall edge of the water tank 11. It will be appreciated by those skilled in the art that when the side wall edge of the water trough 12 is exposed to the limit portion 212 to limit the water tank assembly 1, the groove wall of the clamping groove 212a is provided with an elastic protrusion 215 for abutting against the side wall edge of the water trough 12. When the inner side wall of the water trough 12 and the outer side wall of the water storage tank 11 form opposite side walls connected with the limiting part 212, only one groove wall of the clamping groove 212a is provided with an elastic bulge 215, and the elastic bulge 215 is abutted with the side wall edge of the water storage tank 11, or the elastic bulge 215 is abutted with the side wall edge of the water trough 12; alternatively, at this time, both the two groove walls of the clamping groove 212a are provided with elastic protrusions 215, and the elastic protrusions 215 are respectively abutted against the side wall edges of the water storage tank 11 and the side wall edges of the water trough 12.

As shown in fig. 5, an abutment block 216 is formed on the side of the housing 21 facing the water tank 11 so as to protrude, and the casing assembly 2 abuts against the outer wall of the water tank 11 through the abutment block 216. When the pet kicks the pet water dispenser 100, the water tank assembly 1 and the case assembly 2 are stably and firmly connected due to the fact that the edge of the side wall of the water storage tank 11 and/or the water trough 12 stretches into the clamping groove 212a of the shell 21, meanwhile, the water storage tank 11 is propped against the outer protrusion of the shell 21 to form the propping block 216, shaking and loosening of the pet water dispenser 100 caused by external force can be reduced, and the risk that the pet water dispenser 100 is pushed down is further reduced.

As shown in fig. 4, the trough wall of the drinking trough 12 is provided with an overflow through hole 123, and the overflow through hole 123 is communicated with the water storage cavity. This structure prevents the overflow of the drinking water in the drinking trough 12.

As shown in fig. 4, the water tank assembly 1 further includes a primary filter layer 13 disposed corresponding to the overflow hole 123, the primary filter layer 13 includes a filter holder 131 and a filter member 132, the filter member 132 is disposed on the filter holder 131 and located on the water outlet side of the overflow hole 123, the filter holder 131 is formed with a filter through hole 1311, the filter through hole 1311 is located on the water outlet side of the filter member 132, and the filter through hole 1311 is communicated with the water storage chamber. In this embodiment, the water in the water trough 12 flows in from the overflow through hole 123, falls onto the filter 132, is filtered by the filter 132, and enters the water storage chamber from the filter through hole 1311. The pet drinking machine 100 of the present embodiment can perform preliminary filtration, such as filtering out pet hair or food residues, etc., by means of the primary filter layer 13.

As shown in fig. 4, the inner side wall of the side plate 1312 is formed with a second stepped portion 1314, and the filter 132 is disposed in the receiving space by the second stepped portion 1314, and stable installation of the filter 132 can be achieved by this design.

As shown in fig. 4, the side plate 1312 has a hanging portion 1315 on the inner side wall, and the hanging portion 1315 is engaged with the overflow hole 123 to detachably connect the primary filter layer 13 to the drinking trough 12. When the user needs to replace or clean the filter 132, the user takes the primary filter layer 13 and the water trough 12 out of the water storage cavity, then removes the primary filter layer 13 from the water trough 12, and then cleans or replaces the filter 132 in the accommodating space. After the user puts the clean filter 132 into the receiving space, the primary filter 13 is mounted to the water trough 12, and both are put into the water storage chamber. This design improves the convenience of the user in changing or cleaning the filter 132.

As shown in fig. 3 and 4, the bottom plate 1313 is inclined downward toward the inner side wall near the water tank 11, and the side plate 1312 near the water tank 11 is provided with a filter through hole 1311. In the pet drinking machine of the embodiment, water filtered by the filter 132 falls on the bottom plate 1313, and then flows out from the filter through holes 1311 near the inner wall surface of the water storage tank 11 along the inclined plane, so that noise generated by water flowing can be effectively reduced, and a quiet and comfortable use environment is provided for pets and users.

As shown in fig. 5 and 6, the water pump 27 is disposed in the housing 21, the casing assembly 2 further includes a water pumping pipe 22, a water inlet pipe 23 and a water outlet pipe 24, a water pumping through hole 124 is disposed on a extension 122 of the water trough 12, one end of the water pumping pipe 22 is communicated with the water inlet pipe 23, the other end of the water pumping pipe 22 passes through the water pumping through hole 124 to be communicated with the water storage cavity, and water in the water storage cavity flows into the water inlet pipe 23 through the water pumping pipe 22 and flows out from the water outlet pipe 24 to the water trough 12. When the water pump 27 is started, water in the water storage cavity flows through the water suction pipe 22 and the water inlet pipe 23, and finally flows out from the water outlet pipe 24 to the water trough 12.

In the embodiment disclosed in fig. 5 and 6, a water pump 27 is provided within the housing 21. It will be apparent to those skilled in the art that there are at least the following ways: the water pump 27 is arranged in the water storage tank 11; at this time, the water inlet end of the water pump 27 is communicated with the water storage cavity, the water outlet end of the water pump 27 is communicated with the water suction pipe 22, and the water suction pipe 22 introduces water into the cabinet assembly 2. This is not described here in detail, since it is a conventional design in the art.

In this embodiment, the water pumping pipe 22 is detachably designed, and when scale is accumulated on the inner side wall of the water pumping pipe 22 after long-term use, the water pumping pipe 22 can be removed for cleaning.

In this embodiment, the water inlet end of the water suction pipe 22 is provided with a filter screen, which may be a metal screen. This design can block larger impurities from entering the conduit of the draft tube 22.

As shown in fig. 6, the casing assembly 2 includes an advanced filter layer, the advanced filter layer includes a filter device 25, the filter device 25 is disposed in the housing 21, the filter device 25 includes a device housing 251 and a filter flow channel 252 formed in the device housing 251, ultrafiltration, microfiltration or nanofiltration is disposed in the filter flow channel 252, and water in the water storage chamber flows into the filter device 25 through the water inlet pipe 23 and flows out of the water outlet pipe 24 after being filtered by the filter device 25. The pet drinking machine 100 of the utility model has the advantages of pure water, purer water, health and more peace of mind for the pet.

As shown in fig. 7 to 9, the water path assembly 26 includes a plurality of water inlet path segments 261, a water filtering and delivering path segment 262 and a water returning path segment 263 which are independent of each other, water enters the water pump 27 from the water inlet end of the water pump 27 through the water inlet path segment 261, then enters the filtering device 25 from the water outlet end of the water pump 27 through the water filtering and delivering path segment 262 from the water inlet end of the filtering device 25, and filtered water is discharged from the water outlet pipe 24 through the water filtering and delivering path segment 262 from the water outlet end of the filtering device 25.

Referring to fig. 7 to 9, an inlet of the water inlet path 261 and an outlet of the post-filtration water return path section 263 are provided on a top surface of the middle case 264, the inlet of the water inlet path section 261 and the outlet of the post-filtration water return path section 263 are aligned in a front-rear direction, an outlet of the water inlet path section 261 is provided on an outer side surface of the left case 265, an inlet of the post-filtration water return path section 263 is provided on an outer side surface of the right case 266, the outlet of the water inlet path section 261 and the inlet of the post-filtration water return path section 263 are aligned in a left-right direction, and when an axis of the inlet of the post-filtration water return path section 263 and an axis of the outlet of the post-filtration water return path section 263 are disposed to intersect, the middle case 264 and the left case 265 are spliced to form a first connection path extending in the front-rear direction, and the water inlet path section 261 includes the first connection path.

In this embodiment, the inlet of the water inlet section 261 and the outlet of the filtered water return flow path section 263 are aligned in the front-rear direction, the outlet of the water inlet section 261 and the inlet of the filtered water return flow path section 263 are aligned in the left-right direction, so that the pipelines are symmetrical and regular, the assembly and disassembly operations of the corresponding components are convenient, and the water inlet section 261 has a stroke in the up-down direction, the front-rear direction and the left-right direction, and is integrally in a zigzag arrangement, so that the waterway assembly 26 cannot be integrally formed, the middle shell 264 and the left Bian Ke 265 are split, and the middle shell 264 and the left Bian Ke 265 are spliced to form a first connecting flow section extending in the front-rear direction for being communicated into the complete water inlet flow path section 261.

The inner side of the middle case 264 facing the left case 265 is formed with a first groove, and the side of the left case 265 facing the middle case 264 is formed with a second groove, wherein the first groove and the second groove are enclosed together to form a first connection flow path section. In this embodiment, the flow path of the water flowing through the water inlet section of the water tank is turned and extended from the up-down direction to the front-back direction, so that the water flow path is reasonably arranged, and the corresponding assembly is conveniently abutted with the waterway assembly 26.

A control board electrically connected to the water pump 27 is provided in the housing 21. Specifically, the water tank assembly 1 further includes a control button or control panel electrically connected to the control board, and a user can operate on the control button or control panel to control the operation and stop of the water pump 27 through the control board.

In this embodiment, the water storage tank 11 is made of stainless steel. The water storage tank 11 of the pet drinking machine in the market at present is generally made of plastic, but the plastic can store water for a long time so that fine scale, dust or other deposits can be formed on the inner wall surface of the water storage tank. These substances may under certain conditions cause the risk of microbial contamination of the water. The cleaning of the inner wall of the storage tank 11 of plastic material also requires suitable cleaning agents and tools. The above problems can be avoided by the water storage tank 11 made of stainless steel.

In this embodiment, the water trough 12 is made of stainless steel. Because the stainless steel container is manufactured through a stamping process, the design that the edge of the water trough 12 is provided with the folded edge and the edge of the water storage tank 11 is provided with the folded edge can increase the rigidity of the container, and can prevent unsafe caused by sharp parts of the edge.

In an embodiment of the utility model, the water pump 27 is a diaphragm water pump. The diaphragm water pump 27 has good self-priming capability, so that the flow of water is smoother.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. A pet drinking machine, comprising:

the water tank assembly comprises a water storage tank and a water trough, the water storage tank is defined with a water storage cavity with an opening at the top, the water trough is detachably arranged at the top of the water storage tank, the water trough comprises a tank body and a delay edge, and the delay edge extends from the circumferential edge of the tank body to a direction far away from the tank body;

the case assembly comprises a shell, the shell comprises a pressing part and a limiting part, the pressing part is abutted with the extension edge of the water trough to press the water tank assembly, and the limiting part is matched with the side wall edge of the water storage tank and/or the water trough to limit the water tank assembly; the method comprises the steps of,

the water pump is arranged in the water storage tank or the shell and is used for discharging the water in the water storage cavity to the water trough.

2. The pet water dispenser according to claim 1, wherein the housing further comprises a housing body and a housing boss, the housing boss is arranged on the housing body and protrudes out of the housing body, the lower end face of the housing boss is the pressing portion, the housing boss faces towards the inner peripheral wall of the housing body and encloses with the housing body to form a clamping groove with a downward opening, and the clamping groove is the limiting portion.

3. The pet water dispenser according to claim 2, wherein the inner side wall of the water storage tank is provided with a first step part, the extension edge of the water trough is detachably arranged on the first step part so as to embed the water trough into the water storage cavity, and the side wall edge of the water storage tank stretches into the clamping groove to be clamped with the clamping groove;

and/or the groove wall of the clamping groove is provided with an elastic bulge.

4. The pet water dispenser of claim 1, wherein the trough wall of the trough body is provided with an overflow through hole, and the overflow through hole is communicated with the water storage cavity.

5. The pet water dispenser of claim 4, wherein the water tank assembly further comprises a primary filter layer disposed corresponding to the overflow hole, the primary filter layer comprising a filter support and a filter element, the filter element being disposed on the filter support and on the water outlet side of the overflow hole, the filter support being formed with a filter through hole on the water outlet side of the filter element, the filter through hole being in communication with the water storage chamber.

6. The pet water dispenser of claim 5, wherein the filter support comprises two side plates and a bottom plate, the two side plates are respectively connected to two ends of the bottom plate to form a containing space, the inner side wall of the side plate is provided with a second step part, and the filter is arranged in the containing space through the second step part.

7. The pet water dispenser of claim 6, wherein the inner side wall of the side plate is provided with a hanging part which is clamped with the overflow through hole so that the filtering bracket is detachably connected with the water trough;

and/or the bottom plate is arranged in a downward inclined way towards the direction close to the inner side wall of the water storage tank, and the side plate close to the inner side wall of the water storage tank is provided with the filtering through hole.

8. The pet water dispenser according to any one of claims 1 to 7, wherein a water pumping through hole is formed in a side of the water trough, the case assembly further comprises a water pumping pipe, a water inlet pipe and a water outlet pipe, one end of the water pumping pipe is communicated with the water inlet pipe, the other end of the water pumping pipe penetrates through the water pumping through hole to be communicated with the water storage cavity, and water in the water storage cavity flows into the water inlet pipe through the water pumping pipe and flows out of the water outlet pipe to the water trough.

9. The pet water dispenser of claim 8, wherein the housing assembly includes an advanced filter layer including a filter device disposed in the housing, the filter device including a device housing and a filter flow path formed in the device housing, wherein ultrafiltration or microfiltration or nanofiltration is disposed in the filter flow path, and wherein water in the water storage chamber flows into the filter device through the water inlet pipe and flows out of the water outlet pipe after being filtered by the filter device.

10. The pet water dispenser of claim 9, wherein the case assembly comprises a waterway assembly, the water pump is arranged in the shell, the waterway assembly is provided with a plurality of flow sections, the plurality of flow sections comprise mutually independent water inlet flow sections, filtering water supply flow sections and filtered water return flow sections, the water inlet pipe is communicated with the water inlet end of the water pump through the water inlet flow sections, the water outlet end of the water pump is communicated with the water inlet end of the filtering device through the filtering water supply flow sections, the water outlet pipe is communicated with the water outlet end of the filtering device through the filtering water return flow sections, the waterway assembly comprises a middle shell, a left shell and a right shell which are assembled on two sides of the middle shell, the water inlet flow sections are at least partially formed on the middle shell and the left shell, the filtering water supply flow sections are at least partially formed on the middle shell, the left shell and the right shell, and the filtered water return flow sections are at least partially formed on the middle shell and the right shell;

and/or a control board is arranged in the shell and is electrically connected with the water pump;

and/or the water storage tank is made of stainless steel;

and/or the water trough is made of stainless steel;

and/or, the water pump is a diaphragm water pump;

and/or the extended edge of the water trough is provided with a folded edge;

and/or the edge of the water storage tank is provided with a folded edge.