Water-circulating cleaning litter box

Abstract

A water-circulating cleaning litter box, comprising a litter box body (100), a sifting assembly (200), a water washing chamber (120), a discharge portion (300) and a circulating cleaning assembly, wherein the inner wall of a resting space (110) within the litter box body (100) is provided with filter holes (111) for filtering out water; the sifting assembly (200) is used for sifting and discharging feces from the resting space (110), and the sifting assembly (200) is movably provided on the litter box body (100); the water washing chamber (120) is provided in the litter box body (100); the discharge portion (300) is provided between the resting space (110) and the water washing chamber (120), so as to discharge cat litter in the resting space (110) into the water washing chamber (120); and the circulating cleaning assembly comprises a cleaning pump (420) and a circulating pipe (410), the water inlet end of the cleaning pump (420) is communicated with the water washing chamber (120), and the water outlet end of the cleaning pump (420) is communicated with the resting space (110) by means of the circulating pipe (410), so that the cat litter is cyclically washed along with water flow.

Description

Water circulation cleaning cat litter basin TECHNICAL FIELD

[0001] The present application relates to the technical field of cat litter basin, and in particular to a water circulation cleaning cat litter basin. BACKGROUND

[0002] With the continuous improvement of living standards, more and more families choose pets as daily companions, especially in economically developed cities, the proportion of people feeding pets is higher. But due to the per capita housing area of economically developed cities and the control of pets going out, more pet feeding population tends to feline pets that do not need much activity area. Feline pets need to use special cat litter, and the cat litter needs to be cleaned and discarded regularly. TECHNICAL PROBLEM

[0003] At present, the main way to solve the problem of pet cat excretion on the market is to use cat litter basin. The existing cat litter basin usually does not have the function of cleaning cat litter, and cannot clean the cat litter, so that the pet cat will excrete urine or feces on the cat litter, and the surface of the cat litter will be contaminated with feces, which will cause obvious odor of the contaminated cat litter, causing discomfort to the breeder and the pet cat. After using the cat litter for a few days, the contaminated cat litter needs to be discarded and new cat litter needs to be added, which causes a lot of waste of cat litter, is not environmentally friendly, and increases the use cost of cat litter, which is undoubtedly a big pain point for breeders. TECHNICAL SOLUTION

[0004] The purpose of the present application is to provide a water circulation cleaning cat litter basin, which aims to solve the technical problem that the cat litter basin in the prior art cannot clean the cat litter.

[0005] In order to achieve the above purpose, the technical scheme of the present application provides a water circulation cleaning cat litter basin, which comprises:

[0006] A basin body having a sitting and lying space for placing cat litter for cats to defecate, the inner wall of the sitting and lying space is provided with a filter hole for filtering out water;

[0007] A screening assembly for screening and discharging feces in the sitting and lying space, the screening assembly is movably arranged on the basin body;

[0008] A water washing cavity arranged in the basin body;

[0009] A discharging part arranged between the sitting and lying space and the water washing cavity, for discharging cat litter in the sitting and lying space into the water washing cavity;

[0010] The circulating cleaning assembly comprises a cleaning pump and a circulating pipeline, the water inlet end of the cleaning pump is communicated with the water washing cavity, and the water outlet end of the cleaning pump is communicated with the sitting and lying space through the circulating pipeline.

[0011] From the above technical solution, the water circulating cleaning cat litter basin of the present application can feed the cat litter and water in the sitting and lying space to the water washing cavity through the feeding part, so that the cleaning pump can extract the cat litter and water in the water washing cavity to flow along the circulating pipeline and be discharged to the sitting and lying space, and the water in the sitting and lying space can be filtered out through the filter hole, so that the cat litter can be circulated and washed along the water flow to remove a small amount of excrement and obvious odor adhered to the surface of the cat litter, so that the cat litter can be repeatedly used, the use cost of the cat litter is saved, the cat litter is clean and sanitary, and the user experience is good.

[0012] Further, the water washing cavity is located below the sitting and lying space, the filter hole is a plurality of filter holes, and the filter holes are arranged between the sitting and lying space and the water washing cavity to filter the water in the sitting and lying space into the water washing cavity through the filter holes, and the water washing cavity is provided with a drain port.

[0013] Further, the basin body is provided with a receiving cavity, and the excrement in the sitting and lying space is screened and discharged into the receiving cavity through the screening assembly.

[0014] Further, the two ends of the screening assembly are movably connected between the opposite two side walls of the sitting and lying space, so that the screening assembly can be moved from one end of the sitting and lying space to the other end of the sitting and lying space to screen and discharge the excrement in the sitting and lying space.

[0015] Further, the screening assembly comprises a support and a screening part, the screening part is arranged on the support, and guide structures are arranged between the two ends of the support and the opposite two side walls of the sitting and lying space to guide the screening assembly to move along a preset path in the sitting and lying space to screen and discharge the excrement.

[0016] Further, the screening part comprises a plurality of screening claws, the plurality of screening claws are arranged at intervals along the length direction of the support to form gaps for passing through the cat litter between adjacent two screening claws, and the screening claws are arranged to extend towards the bottom wall of the sitting and lying space, so that the distal end of the screening claw is close to or in contact with the bottom wall of the sitting and lying space.

[0017] Further, the screening assembly further comprises a driving part, the driving part comprises a driving motor and a transmission mechanism, and the transmission mechanism is arranged between the support and the side wall of the sitting and lying space, so that the driving motor drives the screening assembly to move along the preset path of the guide structure through the transmission mechanism.

[0018] Further, the guide structure comprises a guide groove arranged on the sidewall of the sitting and lying space and a sliding part arranged on the end of the support, and the sliding part is slidably arranged in the guide groove, and the guide groove extends linearly or in an arc shape, so that the distance between the guide groove and the bottom wall of the sitting and lying space is consistent along the preset path.

[0019] Further, a drying assembly is further included, which comprises a drying channel, a heater and a fan unit, so that the wind blown by the fan unit is heated by the heater and then blown into the sitting and lying space to dry the cleaned cat litter.

[0020] Further, the discharging part comprises a driving motor, a movement mechanism and a cover plate, the inner wall of the sitting and lying space is provided with a first opening, the cover plate is movably arranged at the first opening, the driving motor drives the cover plate to move through the movement mechanism to open or close the first opening, so that the cat litter and water in the sitting and lying space are discharged into the washing cavity through the first opening when the first opening is opened; and / or

[0021] The cat litter box further comprises a water injection assembly, a first water level sensor and a circuit board, the water injection assembly comprises a water injection pipe and a water inlet electromagnetic valve, so as to connect a water source outside the water injection pipe to add water into the washing cavity and / or the sitting and lying space, the water inlet electromagnetic valve is arranged on the water injection pipe, the first water level sensor is used to detect the water level in the washing cavity and / or the sitting and lying space, so that the circuit board controls the water inlet electromagnetic valve to close the water injection pipe according to the water level detected by the first water level sensor reaching a preset value.

[0022] The technical scheme of the present application provides a water circulation cleaning cat litter box, which comprises:

[0023] A basin body, which has a sitting and lying space for placing cat litter for cats to defecate, and the inner wall of the sitting and lying space is provided with a filter hole for filtering out water;

[0024] A screening assembly for screening and discharging feces in the sitting and lying space, which is movably arranged on the basin body;

[0025] A washing cavity arranged in the basin body;

[0026] The circulating cleaning assembly comprises a cleaning pump and a circulating pipeline, the water inlet end of the cleaning pump is communicated with the water washing cavity, the water outlet end of the cleaning pump is communicated with one end of the circulating pipeline, the other end of the circulating pipeline is arranged above or on the side wall of the sitting and lying space, and the other end of the circulating pipeline is provided with one or more water spraying holes, so that the cleaning pump can draw water in the water washing cavity and clean the cat litter in the sitting and lying space through the circulating pipeline. Advantages

[0027] From the above technical solution, the water circulating cleaning cat litter basin can draw water in the water washing cavity through the cleaning pump and clean the cat litter in the sitting and lying space through the circulating pipeline, and the water in the sitting and lying space can be filtered to the water washing cavity through the filtering hole, so that the water circulating cleaning cat litter can be realized to remove a small amount of excrement and obvious odor on the surface of the cat litter, so that the cat litter can be repeatedly used, the use cost of the cat litter is saved, the cat litter is clean and sanitary, and the user experience is good. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 is a perspective view of the water circulating cleaning cat litter basin in an initial daily state according to an embodiment of the present application;

[0029] Fig. 2 is a perspective view of the water circulating cleaning cat litter basin in a feces screening state according to an embodiment of the present application;

[0030] Fig. 3 is a perspective view of the water circulating cleaning cat litter basin in an open top cover state according to an embodiment of the present application;

[0031] Fig. 4 is a perspective view of the water circulating cleaning cat litter basin in a feces discharging state according to an embodiment of the present application;

[0032] Fig. 5 is a perspective view of the water circulating cleaning cat litter basin in a cat litter cleaning state according to an embodiment of the present application;

[0033] Fig. 6 is an exploded view of the water circulating cleaning cat litter basin according to an embodiment of the present application;

[0034] Fig. 7 is a transverse cross-sectional view of the water circulating cleaning cat litter basin according to an embodiment of the present application;

[0035] Fig. 8 is a longitudinal cross-sectional view of the water circulating cleaning cat litter basin according to an embodiment of the present application;

[0036] Fig. 9 is a longitudinal cross-sectional view of the water circulating cleaning cat litter basin from another perspective according to an embodiment of the present application;

[0037] Fig. 10 is a structural schematic view of a discharging part of the water circulating cleaning cat litter basin according to an embodiment of the present application;

[0038] Fig. 11 is a structural schematic diagram of a screening assembly of a water circulation cleaning cat litter box according to an embodiment of the present application.

[0039] In the above drawings, the following reference signs are used:

[0040] 100, basin body; 110, sitting and lying space; 111, filter hole; 112, first opening; 113, through hole; 120, water washing cavity; 121, filter screen; 130, storage cavity; 131, top cover; 132, wing plate; 140, infrared sensor;

[0041] 200, screening assembly; 210, support; 220, driving motor; 230, transmission shaft; 240, gear; 250, bearing; 260, roller; 270, screening claw; 280, rack; 291, guide groove; 292, transmission groove;

[0042] 300, blanking part; 310, cover plate; 311, shaft end; 320, driving motor; 330, screw rod; 340, support frame; 350, strip-shaped movable groove; 360, connecting piece; 370, guide rod;

[0043] 410, circulation pipeline; 420, cleaning pump; 510, sewage pump; 520, sewage discharge pipe; 610, air drying channel; 620, heater; 630, fan unit; 710, water injection pipe; 720, water inlet electromagnetic valve. Embodiments of the present application

[0044] In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] Please refer to Figs. 1-11, the present embodiment provides a water circulation cleaning cat litter basin, comprising a basin body 100, a screening assembly 200, a water washing cavity 120, a discharging part 300 and a circulation cleaning assembly, the basin body 100 has a sitting space 110 for placing cat litter for cats to defecate, the inner wall of the sitting space 110 is provided with filter holes 111 for filtering out water; the screening assembly 200 is used for screening and discharging feces in the sitting space 110, and the screening assembly 200 is movably arranged on the basin body 100; the water washing cavity 120 is arranged in the basin body 100; the discharging part 300 is arranged between the sitting space 110 and the water washing cavity 120, so as to discharge the cat litter in the sitting space 110 into the water washing cavity 120; the circulation cleaning assembly comprises a cleaning pump 420 and a circulation pipeline 410, the water inlet end of the cleaning pump 420 is communicated with the water washing cavity 120, and the water outlet end of the cleaning pump 420 is communicated with the sitting space 110 through the circulation pipeline 410, and the cleaning pump 420 adopts a Sanyo washing machine XQB55-496 impeller type water pump assembly.

[0046] As can be seen from the above technical solution, the water circulation cleaning cat litter basin of the present embodiment discharges the cat litter and water in the sitting space 110 into the water washing cavity 120 through the discharging part 300, so that the cleaning pump 420 draws the cat litter and water in the water washing cavity 120 to flow along the circulation pipeline 410 and be discharged onto the sitting space 110 again, and the water in the sitting space 110 is filtered out through the filter holes 111, thereby realizing the circulation cleaning of the cat litter along the water flow to remove a small amount of excrement and obvious odor adhered to the surface of the cat litter, so that the cat litter can be repeatedly used, the use cost of the cat litter is saved, the cat litter is clean and sanitary, and the user experience is good.

[0047] In the present embodiment, the water washing cavity 120 is located below the sitting space 110, the filter holes 111 are a plurality of filter holes, and the filter holes 111 are arranged between the sitting space 110 and the water washing cavity 120 to filter the water in the sitting space 110 into the water washing cavity 120 through the filter holes 111, and the water washing cavity 120 is provided with a drain to discharge the water in the sitting space 110 into the water washing cavity 120 through the filter holes 111 after the cat litter is cleaned for multiple times, so as to keep the cat litter in the sitting space 110 for subsequent continuous use.

[0048] Specifically, the basin body 100 is provided with a receiving cavity 130, so that the feces of the cat in the sitting space 110 is screened and discharged into the receiving cavity 130 for centralized storage through the screening assembly 200, thereby improving the practicability and convenience of the product.

[0049] Further, the two ends of the screening assembly 200 are movably connected between the opposite two side walls of the sitting and lying space 110, so that the screening assembly 200 is moved from one end of the sitting and lying space 110 to the other end of the sitting and lying space 110 to screen and discharge the feces in the sitting and lying space 110, wherein the screening assembly 200 comprises a support 210 and a screening part arranged on the support 210, and the two ends of the support 210 are provided with a guide structure between the opposite two side walls of the sitting and lying space 110, so as to guide the screening assembly 200 to move along a preset path in the sitting and lying space 110 through the guide structure to screen and discharge the feces, which is simple in structure, stable and reliable. In this way, the feces of the cat in the sitting and lying space 110 is screened and discharged first, so as to facilitate the water circulation cleaning of the cat litter in the sitting and lying space 110.

[0050] Preferably, the screening part comprises a plurality of screening claws 270, which are arranged at intervals along the length direction of the support 210 to form gaps for passing the cat litter between adjacent two screening claws 270, and the screening claws 270 are arranged to extend towards the bottom wall of the sitting and lying space 110, so that the distal end of the screening claw 270 is close to or in contact with the bottom wall of the sitting and lying space 110. In this way, since the cat litter particles are small enough to pass through the gap between adjacent two screening claws 270, the cat litter still remains in the sitting and lying space 110 during the operation of the screening claw 270, while the feces of the cat, which is too large to pass through the gap between adjacent two screening claws 270, is pushed by the screening claw 270 to move and fall into the storage cavity 130 for centralized storage, so as to screen and discharge the feces of the cat in the sitting and lying space 110.

[0051] In the embodiment, the screening assembly 200 further comprises a driving part, which comprises a driving motor 220 and a transmission mechanism arranged between the support 210 and the side wall of the sitting and lying space 110, so that the driving motor 220 drives the screening assembly 200 to move along the preset path of the guide structure through the transmission mechanism, thereby realizing the driving operation of the screening claw 270 to automatically screen and discharge the feces of the cat in the sitting and lying space 110, which is high in intelligence and automation and convenient to use.

[0052] Specifically, the guide structure comprises a guide groove 291 arranged on the side wall of the sitting and lying space 110 and a sliding part arranged on the end of the support 210, and the sliding part is slidably arranged in the guide groove 291. The guide groove 291 extends along a straight line or an arc-shaped curve, so that the distance between the guide groove 291 and the bottom wall of the sitting and lying space 110 remains consistent along the preset path. In this way, the distal end of the screening claw 270 is ensured to be close to or in contact with the bottom wall of the sitting and lying space 110 during the operation of the screening claw 270, so as to avoid the feces of the cat from leaking out and remaining in the sitting and lying space 110 during the screening, thereby affecting the cleaning effect of the cat litter and improving the practicability and stability of the product.

[0053] Further, the transmission mechanism comprises a transmission shaft 230, a gear 240 and a rack 280, the driving motor 220 is arranged in the support 210, the support 210 comprises a upper shell and a lower shell which are buckled, and the support 210 is in the shape of a shaft, the transmission shaft 230 is rotatably installed on the support 210, and the two ends of the transmission shaft 230 respectively pass out from the two ends of the support 210, the output shaft of the driving motor 220 is in transmission connection with the transmission shaft 230 through a transmission belt, the gear 240 is arranged at the two ends of the transmission shaft 230 respectively, the rack 280 is arranged on the inner wall of the guide groove 291 on the opposite sides of the sitting and lying space 110, and the gear 240 is in transmission engagement with the rack 280, the rack 280 is arranged along the length direction of the guide groove 291, so as to drive the gear 240 to rotate along the rack 280 by driving the transmission shaft 230 to rotate by the driving motor 220, and drive the screening claw 270 to move from one end of the sitting and lying space 110 to the other end of the sitting and lying space 110 under the guidance of the guide structure, so as to screen and discharge the feces mixed in the cat litter into the storage cavity 130 for centralized storage, and the storage cavity 130 is installed at the other end of the sitting and lying space 110.

[0054] Wherein, the sliding part is in the shape of a roller 260, and the sliding part is arranged in a spaced manner with the transmission shaft 230, and the sliding part and the gear 240 are both contained in the guide groove 291, the inner wall of the guide groove 291 is provided with a transmission groove 292, the transmission groove 292 is arranged along the length direction of the guide groove 291, the width of the transmission groove 292 is smaller than the width of the guide groove 291, and the end of the transmission shaft 230 is sleeved with a bearing 250, so that the bearing 250 is movably installed in the transmission groove 292, so as to improve the smoothness and stability of the operation of the screening assembly 200.

[0055] In the embodiment, the top of the storage cavity 130 is provided in an open manner, and a top cover 131 is rotatably installed above the storage cavity 130, so as to cover the top opening of the storage cavity 130 by the top cover 131, at least one side of the top cover 131 extends in the direction close to the sitting and lying space 110 to form a wing plate 132, so that the top cover 131 is lifted by the support 210 and the wing plate 132 when the screening assembly 200 moves to screen the feces, and the storage cavity 130 is opened, and the feces is pushed into the storage cavity 130 for storage, and the structure is simple and convenient to use.

[0056] Specifically, the water washing cavity 120 is communicated with the storage cavity 130, and a filter screen 121 is arranged between the water washing cavity 120 and the storage cavity 130, so as to prevent the cat litter in the water washing cavity 120 from being accidentally discharged when the sewage in the water washing cavity 120 flows into the storage cavity 130. A sewage pump 510 is arranged in the sewage cavity, a sewage discharge port is arranged at the bottom of the sewage cavity, and the sewage discharge port is communicated with a sewage discharge pipe 520. An electromagnetic valve can be installed on the sewage discharge pipe 520 to control the automatic opening and closing, so that the sewage pump 510 operates to discharge the sewage in the sewage cavity and the excrement dissolved in the sewage through the sewage discharge pipe 520.

[0057] In the embodiment, the cat litter basin further comprises a drying assembly, which comprises a drying channel 610, a heater 620 and a fan unit 630. The fan unit 630 blows air, which is heated by the heater 620, to the sitting space 110 to dry the cleaned cat litter. One end of the drying channel 610 is communicated with the water washing cavity 120, and the other end of the drying channel 610 extends upward. The heater 620 and the fan unit 630 are installed at the other end of the drying channel 610. After the sewage in the water washing cavity 120 is discharged, the hot air in the drying channel 610 blows upward to the sitting space 110 through the filter holes 111 to dry the cleaned cat litter, so that the pet cat can continue to use the cat litter.

[0058] Further, the discharging part 300 comprises a driving motor 320, a moving mechanism and a cover plate 310, the inner wall of the sitting and lying space 110 is provided with a first opening 112, the cover plate 310 is movably arranged at the first opening 112, the driving motor 320 drives the cover plate 310 to move through the moving mechanism so as to open or close the first opening 112, so that the cat litter and water in the sitting and lying space 110 are discharged into the water washing cavity 120 through the first opening 112 when the first opening 112 is opened, wherein when the water in the water washing cavity 120 flows into the sitting and lying space 110 through the filtering hole 111 and the first opening 112 is opened, the water in the water washing cavity 120 is extracted by the cleaning pump 420 and discharged into the sitting and lying space 110 through the circulating pipeline 410, the end of the circulating pipeline 410 is connected with the sitting and lying space 110 through the through hole 113 of the side wall of the sitting and lying space 110, the cat litter in the sitting and lying space 110 flows into the water washing cavity 120 along the water flow through the first opening 112, and the water and cat litter in the water washing cavity 120 are extracted by the cleaning pump 420 and discharged into the sitting and lying space 110 through the circulating flow, the cat litter is washed along the circulating flow, and the friction between the cat litter and the surface of the blade in the cleaning pump 420 can also clean the cat litter, so that the surface of the cat litter is cleaned through the above-mentioned water circulating flow cleaning process repeatedly for several times, then the first opening 112 is closed by the cover plate 310 of the discharging part 300, so that the cat litter in the sitting and lying space 110 cannot flow into the water washing cavity 120 and is retained in the sitting and lying space 110, the water in the sitting and lying space 110 can flow into the water washing cavity 120 again through the filtering hole 111, and the cat litter and water in the water washing cavity 120 are extracted by the cleaning pump 420 and discharged into the sitting and lying space 110 repeatedly, so that the cat litter in the water washing cavity 120 can be replaced into the sitting and lying space 110, the applicant found that almost all the cat litter in the water washing cavity 120 can be replaced into the sitting and lying space 110 in the actual test process, even if a few cat litter particles are retained in the water washing cavity 120, they can also be replaced into the sitting and lying space 110 for use in the next time of cleaning the cat litter.

[0059] Wherein, after the cat litter is cleaned, the sewage pump 510 is operated to extract the sewage in the storage cavity 130 and discharge it through the sewage discharge pipe 520, in the process of discharging the sewage in the storage cavity 130, the sewage in the water washing cavity 120 continuously flows into the storage cavity 130 for centralized discharge, and the sewage in the sitting and lying space 110 flows into the water washing cavity 120 through the filtering hole 111 and is also discharged, so that the surface of the cat litter is cleaned, and of course the cat litter can be cleaned repeatedly by adding water again, so as to improve the cleaning effect of the cat litter.

[0060] Specifically, the opposite sides of the cover plate 310 are provided with shaft ends 311, and the opposite sidewalls of the first opening 112 are provided with mounting holes, so that the shaft ends 311 are inserted into the mounting holes correspondingly, so that the cover plate 310 is rotatably covered on the first opening 112. The cover plate 310 is provided with a support frame 340, and the support frame 340 is provided with a strip-shaped movable slot 350. The moving mechanism includes a lead screw 330 and a connecting piece 360. The end of the connecting piece 360 is provided with a guide rod 370, which is movably arranged in the strip-shaped movable slot 350. The connecting piece 360 is provided with a threaded hole. The lead screw 330 is in transmission connection with the output shaft of the driving motor 320, and the lead screw 330 is connected with the threaded hole. The driving motor 220 drives the lead screw 330 to rotate, and the connecting piece 360 is driven to ascend or descend along the lead screw 330 under the action of the spiral force of the threaded hole and the lead screw 330, so that the guide rod 370 of the connecting piece 360 presses or lifts the support frame 340, and then drives the cover plate 310 to rotate to open or close the first opening 112. The circuit board controls the rotation angle of the cover plate 310 according to the driving motor 320, so as to control the size of the opening of the first opening 112, and then control the proportion of the cat litter in the sitting and lying space 110 flowing into the washing cavity 120 through the first opening 112, so as to avoid that too much cat litter flowing into the washing cavity 120 at one time is rolled into the cleaning pump 420, which affects the cat litter cleaning effect, and the structure design is stable and reliable.

[0061] In the embodiment, the cat litter box further comprises a water injection assembly, a first water level sensor and a circuit board. The circuit board uses an STM32 MCU as the main control. The first water level sensor and the electromagnetic valve can use existing functional components. The water injection assembly comprises a water injection pipe 710 and a water inlet electromagnetic valve 720. The water injection pipe 710 is connected to a water source to add water to the washing cavity 120 and / or the sitting and lying space 110. The water inlet electromagnetic valve 720 is arranged on the water injection pipe 710. The first water level sensor is used to detect the water level in the washing cavity 120 and / or the sitting and lying space 110, so that the circuit board controls the water inlet electromagnetic valve 720 to close the water injection pipe 710 when the water level detected by the first water level sensor reaches a preset value. One end of the water injection pipe 710 is communicated with the storage cavity 130, so that water is first added to the storage cavity 130 through the water injection pipe 710, and then flows into the washing cavity 120 and the sitting and lying space 110 when the water level in the storage cavity 130 rises. Under normal circumstances, the first water level sensor detects the water level in the sitting and lying space 110 to prevent the cleaning water from overflowing, thereby improving the safety and reliability of the product.

[0062] Further, the sitting and lying space 110 is provided with an infrared sensor 140, which can be a BGX-35N diffuse reflection sensor of Bo Yijingke Company, which is used to detect whether there is a pet cat in the sitting and lying space 110, so as to ensure that the cat litter cleaning program is not started when the pet cat is not in the sitting and lying space 110.

[0063] In use, as shown in FIG. 1, in the initial daily state, the screening assembly 200 is located at one end of the sitting and lying space 110, and a plurality of cat litter particles are placed in the sitting and lying space 110 for pet cats to use for excretion, when it is necessary to clean the cat litter, the screening claws 270 of the screening assembly 200 are first moved from one end of the sitting and lying space 110 to the other end of the sitting and lying space 110 to screen and discharge the cat's feces mixed in the cat litter, as shown in FIG. 2, the cat litter basin is in a state of screening feces, so that the top cover 131 is lifted by the abutment of the support 210 and the wing plate 132 when the screening assembly 200 moves to the other end adjacent to the sitting and lying space 110, as shown in FIG. 3, thereby opening the storage cavity 130, and the cat's feces is pushed into the storage cavity 130 by the screening claws 270 for centralized storage, as shown in FIG. 4, then the water inlet electromagnetic valve 720 is opened, and some water is first added into the storage cavity 130 through the water injection pipe 710, and then the sewage pump 510 is started to run, and the feces in the storage cavity 130 is ground or broken by the rotation and stirring of the fan blades of the sewage pump 510, the sewage pump 510 can be a water pump with a feces grinding function, so that the ground small particle feces is dissolved in water and discharged through the sewage discharge pipe 520, and then cleaning water is added for water circulation cleaning of the cat litter, as shown in FIG. 5, so that when the water addition amount of the cleaning water reaches the preset value, the cleaning pump 420 is started, the cover plate 310 of the discharging part 300 opens the first opening 112, so that the cat litter in the sitting and lying space 110 flows into the water washing cavity 120 through the first opening 112, and the water and cat litter in the water washing cavity 120 are extracted by the cleaning pump 420 and discharged into the sitting and lying space 110 through the circulation pipe 410, the water in the sitting and lying space 110 can flow into the water washing cavity 120 through the filter hole 111, and the cat litter in the sitting and lying space 110 is again circulated and flows into the water washing cavity 120 through the first opening 112, in this way, the above-mentioned cat litter water circulation cleaning process is repeated, so that the cat litter is cleaned, the cleaning effect is good, the peculiar smell or odor on the surface of the cat litter is effectively reduced, a large amount of cat litter is saved, and the cat litter can still be repeatedly used after cleaning, wherein the cat litter is a degradable material of PLA polylactic acid, which can be processed into an egg-shaped particle with a diameter of 3-5 mm, and the smooth outer surface is conducive to cleaning and improves the foot feeling when the cat steps on it. Since the cat litter is a completely degradable material with small particle size, even if a small amount of cat feces is brought into the storage cavity 130 and discharged into the sewer, it will not have adverse effects on the environment.

[0064] In addition, the water circulation cleaning cat litter basin provided in one embodiment comprises a basin body 100, a screening assembly 200, a water washing cavity 120 and a circulation cleaning assembly. The basin body 100 has a lying space 110 for placing cat litter for cats to defecate. The inner wall of the lying space 110 is provided with filter holes 111 for filtering out water. The screening assembly 200 is used for screening and discharging feces in the lying space 110 and is movably arranged on the basin body 100. The water washing cavity 120 is arranged in the basin body 100. The circulation cleaning assembly comprises a cleaning pump 420 and a circulation pipeline 410. The water inlet end of the cleaning pump 420 is communicated with the water washing cavity 120. The water outlet end of the cleaning pump 420 is communicated with one end of the circulation pipeline 410. The other end of the circulation pipeline 410 is arranged above or on the side wall of the lying space 110 and is provided with one or more water spraying holes. The cleaning pump 420 draws water in the water washing cavity 120 and washes the cat litter in the lying space 110 through the circulation pipeline 410. The embodiment is different from the above-mentioned embodiments in that the embodiment cancels the discharging part 300 so that the cat litter can be washed in the lying space 110 without flowing into the water washing cavity 120. Of course, in order to ensure the washing effect of the cat litter, the other end of the circulation pipeline 410 can be provided with multiple water spraying holes similar to a shower head structure to spray and wash the cat litter in the lying space 110.

[0065] From the above technical solution, it can be seen that the water circulation cleaning cat litter basin of the present application can draw water in the water washing cavity 120 by the cleaning pump 420 and wash the cat litter in the lying space 110 through the circulation pipeline 410. The water in the lying space 110 is filtered to the water washing cavity 120 through the filter holes 111, thereby realizing water circulation washing of the cat litter to remove a small amount of excrement and obvious odor adhered to the surface of the cat litter, so that the cat litter can be repeatedly used, the use cost of the cat litter is saved, it is clean and sanitary, and the user experience is good.

[0066] The above is the preferred embodiment of the present application. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the present application, and these improvements and refinements are also regarded as the protection scope of the present application.

Claims

1. A water-circulating cleaning litter box for a cat, characterized by, The cat litter box comprises: a basin body having a lying space for placing cat litter for cats to defecate, the inner wall of the lying space being provided with filter holes for filtering out water; a screening assembly for screening and discharging feces in the lying space, the screening assembly being movably arranged on the basin body; a water washing cavity arranged in the basin body; a discharging part arranged between the lying space and the water washing cavity for discharging cat litter in the lying space into the water washing cavity; a circulating cleaning assembly comprising a cleaning pump and a circulating pipeline, the water inlet end of the cleaning pump being communicated with the water washing cavity, and the water outlet end of the cleaning pump being communicated with the lying space through the circulating pipeline.

2. The water-circulating self-cleaning cat litter box according to claim 1, wherein, The water washing cavity is located below the lying space, the filter holes are a plurality of holes arranged between the lying space and the water washing cavity for filtering water in the lying space into the water washing cavity through the filter holes, and the water washing cavity is provided with a drain.

3. The water-circulating self-cleaning cat litter box according to claim 1, wherein, The basin body is provided with a receiving cavity for screening and discharging feces in the lying space into the receiving cavity by the screening assembly.

4. The water-circulating self-rinsing cat litter box according to claim 1, wherein, The two ends of the screening assembly are movably connected between the opposite side walls of the lying space, so that the screening assembly moves from one end of the lying space to the other end of the lying space to screen and discharge feces in the lying space.

5. The water-circulating self-cleaning cat litter box according to claim 4, wherein, The screening assembly comprises a support and a screening part arranged on the support, the two ends of the support are provided with a guide structure between the opposite side walls of the lying space, and the guide structure guides the screening assembly to move along a preset path in the lying space to screen and discharge feces.

6. The water-circulating self-rinsing cat litter box according to claim 5, wherein, The screening part comprises a plurality of screening claws, the plurality of screening claws are arranged at intervals along the length direction of the support to form gaps for passing through cat litter between adjacent two screening claws, and the screening claws are arranged to extend towards the bottom wall of the lying space so that the ends of the screening claws are close to or in contact with the bottom wall of the lying space.

7. The water-circulating self-rinsing cat litter box according to claim 5, wherein, The screening assembly further comprises a driving part comprising a driving motor and a transmission mechanism, the transmission mechanism is arranged between the support and the side wall of the lying space, so that the driving motor drives the screening assembly to move along the preset path of the guide structure through the transmission mechanism.

8. The water-circulating self-cleaning cat litter box according to claim 7, wherein, The guide structure comprises a guide groove arranged on the side wall of the lying space and a sliding part arranged on the end of the support, the sliding part is slidably arranged in the guide groove, and the guide groove extends along a straight line or an arc-shaped curve so that the distance between the guide groove and the bottom wall of the lying space remains consistent along the preset path.

9. The water-cycling self-rinsing cat litter box according to any one of claims 1 to 8, wherein, The cat litter box further comprises a air-drying assembly comprising an air-drying channel, a heater and a fan unit, so that the air blown by the fan unit is heated by the heater and then blown into the lying space to dry the cleaned cat litter.

10. The water-circulating self-rinsing cat litter box according to any one of claims 1 to 8, wherein, The discharging part comprises a driving motor, a movement mechanism and a cover plate. An inner wall of the sitting and lying space is provided with a first opening. The cover plate is movably arranged at the first opening. The driving motor drives the cover plate to move through the movement mechanism, so as to open or close the first opening. When the first opening is opened, cat litter and water in the sitting and lying space are discharged into the water washing cavity through the first opening. And / or The litter box further comprises a water injection assembly, a first water level sensor and a circuit board. The water injection assembly comprises a water injection pipe and a water inlet electromagnetic valve. The water injection pipe is connected with a water source, so as to add water into the water washing cavity and / or the sitting and lying space. The water inlet electromagnetic valve is arranged on the water injection pipe. The first water level sensor is used to detect the water level in the water washing cavity and / or the sitting and lying space. The circuit board controls the water inlet electromagnetic valve to close the water injection pipe when the water level detected by the first water level sensor reaches a preset value.

11. A water-circulating cleaning litter box, characterized by, Comprise: A basin body having a sitting and lying space for placing cat litter for cats to defecate. An inner wall of the sitting and lying space is provided with a filter hole for filtering out water. A screening assembly for screening and discharging feces in the sitting and lying space. The screening assembly is movably arranged on the basin body. A water washing cavity arranged in the basin body. A circulating cleaning assembly comprising a cleaning pump and a circulating pipeline. The water inlet end of the cleaning pump is communicated with the water washing cavity. The water outlet end of the cleaning pump is communicated with one end of the circulating pipeline. The other end of the circulating pipeline is arranged above or on the side wall of the sitting and lying space. The other end of the circulating pipeline is provided with one or more water injection holes. The cleaning pump draws water from the water washing cavity and cleans the cat litter in the sitting and lying space through the circulating pipeline.

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