Automatic cleaning system for cat toilet and control method

Abstract

The automatic cat toilet cleaning system comprises a support assembly, a water spraying system, an excrement shoveling device, a cat litter basin, a sewage discharging system and a drying and disinfecting device, the sewage discharging system is located below the cat litter basin, and water is sprayed into the cat litter basin from outside to inside through the water spraying system to wash cat litter, the cat litter basin and a shovel rake; generated sewage flows into a sewage discharge system through a water leakage hole of the cat litter basin, the cat litter is shoveled into a water tank of the sewage discharge system through the cat litter shoveling device, the cat litter is smashed by the smashing device, dissolved with the sewage and then discharged through a sewage discharge pipe, actions such as cat litter shoveling, flushing, smashing, sewage discharge and drying disinfection are fully automatically completed, peculiar smell is removed in time, the two hands are liberated, and cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of pet supplies equipment, and in particular to an automatic cleaning system and control method for a cat toilet. Background Art

[0002] In the prior art, the removal of cat excrement mainly includes manual removal and automatic removal. At present, the automatic cat litter box on the market is generally a rotating or raking feces shoveling mechanism, so as to separate cat feces from cat litter. However, cat feces are easy to stick to the cat litter box and the shovel. It is difficult to remove the lumps formed by cat urine and disposable cat litter with the existing device. The cat urine lumps need to be removed manually. The cat feces and cat urine lumps need to be manually packaged and processed. At the same time, it is necessary to keep purchasing disposable cat litter, which is neither hygienic nor labor-saving nor cost-effective. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an automatic cleaning system and control method for a cat toilet, including a body provided with a bracket assembly, a water spraying system, a feces shoveling device, a sewage system and a drying and disinfecting device. The water spraying system sprays water from the outside into the cat litter box to flush the cat litter box, cat litter and the shovel rake. The generated sewage flows into the sewage system through the water leakage hole of the cat litter box. The cat feces are shoveled into the sewage system sink by the feces shoveling device. The cat feces are crushed by the crushing device and dissolved in the sewage, and then discharged through the sewage pipe. The actions of shoveling, flushing, crushing, sewage discharge and drying and disinfection are fully automatically completed, and the feces are removed in time, odor is eliminated, hands are freed, and costs are saved.

[0004] The first aspect of the present invention discloses an automatic cleaning system for a cat toilet, including a body, which is provided with a bracket assembly, a water spraying system, a feces scooping device, a cat litter box and a sewage system, wherein the sewage system is located below the cat litter box, and the cat litter box is provided with an inner groove for placing cat litter. The feces scooping device scoops cat feces into the sewage system, and the water spraying system sprays water from the outside into the cat litter box to flush the cat litter box, and the generated sewage flows into the sewage system through the leakage hole of the cat litter box, and the cat feces are dissolved in the sewage system and then discharged to the outside.

[0005] According to some embodiments of the present invention, the water spray system is installed on a bracket assembly or a cat litter box, a shell is provided on the outside of the body, the water spray system is installed on the body or the shell, the water spray system includes a water inlet pipe, a water inlet valve, a water outlet pipe and a nozzle, the water inlet of the water inlet pipe is connected to an external water source, the water outlet of the water inlet pipe is connected to the water inlet of the water inlet valve, the water outlet of the water inlet valve is connected to the water inlet of the water outlet pipe, the water outlet of the water outlet pipe is connected to the water inlet of the nozzle, the number of the nozzles is at least 1, and the single hole diameter or width size of the water spray hole of the nozzle is between greater than or equal to 0.1 mm and less than or equal to 30 mm.

[0006] According to some embodiments of the present invention, a feces shoveling device is provided above or inside the cat litter box, and the cat litter box is provided with a sewage outlet, and the sewage outlet is located above the sewage system. The feces shoveling device shovels cat feces into the sewage system through the sewage outlet, and the cat litter box is provided with a leakage hole, and the sewage after flushing flows into the sewage system through the leakage hole or the sewage outlet.

[0007] According to some embodiments of the present invention, the sewage discharge system includes at least one of a water tank, a crushing device and a sewage pipe, the crushing device includes a crushing motor and a crushing knife, the crushing device is arranged on at least one of the bracket assembly, the cat litter box and the water tank, the crushing knife extends into the water tank, the water tank is provided with a sewage hole connected to the sewage pipe, and the cat feces is crushed by the crushing knife and dissolved in sewage and discharged through the sewage pipe.

[0008] According to some embodiments of the present invention, a drying and disinfecting device is provided on the body or the casing, and the drying and disinfecting device includes at least one of a fan, a heater and a disinfecting device. When the flushing program is completed, the drying and disinfecting device starts to dry and disinfect the cat litter.

[0009] According to some embodiments of the present invention, the water inlet valve comprises a control valve or a water pump, and the external water source comprises tap water or a water storage tank.

[0010] According to some embodiments of the present invention, a sand filter basket is provided in the water tank, and the sand filter basket is provided with a drainage hole. The maximum size of the through holes of the cat litter box and the drainage hole of the sand filter basket is smaller than the diameter or minimum size of the cat litter, and the outlet of the sewage pipe is connected to a sewer or a sewage storage tank.

[0011] According to some embodiments of the present invention, the body or the casing is provided with an automatic control unit, including a main control device and an infrared detection device, the main control device includes a main control board, an electrical system and an intelligent control system thereof; the infrared detection device is arranged on the bracket assembly near the cat entrance and exit, and when the infrared detects that the cat has an entry and exit signal, the main control device controls the program actions of shoveling feces, flushing, crushing, discharging sewage and drying and disinfection respectively.

[0012] The second embodiment of the present invention discloses a control method of an automatic cleaning system of a cat toilet in the first embodiment, including arranging an infrared sensor in a bracket assembly, and executing the following steps when the infrared sensor detects that a cat enters a cat litter box to defecate and then leaves the cat litter box:

[0013] For ease of understanding, the position where the poop scooping device moves to a side close to the cat litter box sewage outlet is defined as the end point, and the initial starting point of the poop scooping device is defined as the starting point.

[0014] Step 1, turn on the feces shoveling mode, the feces shoveling device starts to work, the driving motor drives the shovel rake to do axial flipping motion, the shovel rake moves from the starting position to the end position close to the cat litter box sewage outlet, and the cat feces are shoveled into the sewage system;

[0015] Step 2: Turn on the return mode of the poop shoveling device, drive the motor to reverse, and flip the shovel from the end position to the starting position;

[0016] Step 3, repeating the actions of step 1 and step 2 for greater than or equal to 1 and less than or equal to 50 cycles;

[0017] Step 4, start the flushing mode, the water inlet valve is actuated to open the water path, and high-pressure water is sprayed into the cat litter box through the nozzle. To ensure the flushing effect, the flushing mode can be turned on at any time during the action period from step 1 to step 3;

[0018] Step 5: During the water spraying and rinsing process, the crushing mode is turned on at the same time, the crushing device is activated, and the crushing motor drives the crushing blade to rotate to crush the cat feces and cat urine lumps;

[0019] Step 6, turn off the flushing mode and crushing mode, and keep steps 1 to 3 in working state;

[0020] Step 7: Turn on the drying and disinfection mode, and the fan, heating element and disinfection start working, and last for more than or equal to 1 and less than or equal to 250 minutes;

[0021] Step 8. Turn off the drying and disinfection mode, return the shovel and rake to the starting position, stop the action, and enter the standby state.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention.

[0023] At least the following beneficial effects are achieved:

[0024] The present invention uses a water spraying system to spray water from the outside into the cat litter box to rinse the cat litter, the cat litter box and the shovel. The generated sewage flows into the sewage system through the water leakage hole of the cat litter box. The cat feces are shoveled into the water tank of the sewage system by the feces shoveling device, and are dissolved in the sewage after being crushed and then discharged through the sewage pipe. The actions of shoveling feces, flushing, crushing, sewage discharge, drying and disinfection are fully automatically completed, and the feces are removed in time, odor is avoided, hands are freed, and repeated purchase of cat litter is avoided, thereby saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0026] Figure 1 This is a schematic diagram of the overall structure of an automatic cleaning system and control method for a cat toilet of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the structural breakdown of the bracket assembly;

[0028] Figure 3 for Figure 2 Schematic diagram of the structure of the water spray system;

[0029] Figure 4 for Figure 1 Overall cross-sectional view and schematic diagram of the flip position of the feces shoveling device;

[0030] Figure 5 for Figure 1 Schematic diagram of sewage system structure decomposition;

[0031] Figure 6 for Figure 1 Schematic diagram of the assembly structure of the shit shoveling device and the bracket;

[0032] Figure 7 for Figure 1 Schematic diagram of the cat litter box structure.

[0033] Reference numerals:

[0034] Among them, 100, bracket assembly; 101, bracket; 1011, support hole; 102, main control device; 1021, infrared detection device; 103, drying and disinfection device; 1031, fan; 1032, heating body; 1033, disinfection device; 104, waterproof cover; 105, support column; 110, water spray system; 111, water storage tank; 112, water inlet pipe; 113, water inlet valve; 114, water outlet pipe; 115, nozzle; 120, shit shoveling device; 121, shovel rake; 1211, Rotating shaft; 1212, rake teeth; 122, driving motor; 123, driving wheel; 124, passive wheel; 200, cat litter box; 2001, sewage outlet; 2002, water leakage hole; 2003, fixing frame; 2004, positioning hole; 230, supporting foot; 300, sewage system; 310, sink; 3101, sewage hole; 320, sand filter basket; 330, crushing device; 331, crushing motor; 332, crushing knife; 340, sewage pipe; 350, sewage storage tank; A, starting point; B, end point. DETAILED DESCRIPTION

[0035] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations 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 device or element 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.

[0037] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood as not including the number itself, and "above", "below", "within", etc. are understood as including the number itself. If there is a first or second description, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] refer to Figures 1 to 7 An automatic cleaning system and control method for a cat litter box according to an embodiment of the present invention are described.

[0040] like Figures 1 to 7 As shown, in some embodiments, in order to solve the problem that cat feces and urine are not cleaned in time to produce stench, and cat feces and urine clumps that need to be manually cleaned, in this embodiment, an automatic cleaning system and control method for a cat toilet are provided, including a bracket assembly 100, a water spraying system 110, a feces shoveling device 120, a cat litter box 200, a sewage system 300 and a drying and disinfecting device 103, wherein the sewage system 300 is located below the cat litter box 200, the feces shoveling device 120 shovels cat feces into the sewage system 300, the water spraying system 110 sprays water from the outside into the cat litter box 200 to rinse the cat litter, the cat litter box 200 and the shovel rake 121, and the generated sewage flows into the sewage system 300 through the leaking hole 2002 of the cat litter box 200, and the cat feces and urine are dissolved in the sewage in the sewage system 300 and then discharged to the outside.

[0041] like Figure 1 , 4 and Figure 7As shown, in some embodiments, the cat litter box 200 is provided with a groove inside for placing cat litter. The cat litter is washable, dryable and reusable. Its constituent material includes at least one of metal, plastic, stone and composite material. The shape is round, cylindrical, square, strip, polygonal or irregular. The diameter is greater than or equal to 1 mm and less than or equal to 50 mm, and the length is greater than or equal to 1 mm and less than or equal to 100 mm. The cat litter box 200 is provided with a sewage outlet 2001, and the feces shoveling device 120 pushes cat feces into the sewage system 300 through this sewage outlet 2001. At the same time, a drainage hole 2002 is opened at the bottom of the cat litter box 200. In order to facilitate drainage, the opening height of the drainage hole 2002 is not higher than the cat litter box. The outer height of the cat litter box 200 is 200, and the leakage hole 2002 is connected to the sewage system 300 to drain the sewage into the sewage system 300. The sewage system 300 is provided with a water tank 310. After the cat feces are crushed by the crushing device 330 in the water tank 310, they are dissolved with the sewage and discharged into the sewer or the sewage storage tank 350 through the drainage hole 3101 and the drainage pipe 340. At the same time, in order to simplify the structure and save costs, the bracket 101 is located above the cat litter box 200, and a plurality of support columns 105 are provided at the bottom of the bracket 101, which cooperate with the positioning holes 2004 preset in the cat litter box 200. The bracket 101 and the cat litter box 200 are detachably connected or fixedly connected, and the cat litter box 200 and the bottom of the water tank 310 are provided with support feet 230.

[0042] like Figure 2 and Figure 3 As shown, in some embodiments, in order to facilitate the rapid cleaning of cat feces and urine, a water spray flushing method is adopted, and a water spray system 110 is set. The water spray system 110 is installed on the body or casing. The water spray system 110 includes an inlet pipe 112, an inlet valve 113, an outlet pipe 114 and a nozzle 115. One end of the inlet pipe 112 is connected to an external water source, and the external water source includes tap water or a water tank 111. The outlet of the inlet pipe 112 is connected to the water inlet of the inlet valve 113. The inlet valve The water outlet 113 is connected to the water inlet of the water outlet pipe 114, and the water outlet of the water outlet pipe 114 is connected to the water inlet of the nozzle. There is at least one nozzle 115, and the single hole diameter or width of the water spray hole of the nozzle is between greater than or equal to 0.1 mm and less than or equal to 30 mm. The water inlet valve 113 includes a control valve or a water pump. For ease of implementation, it is preferred to use tap water with a control valve and a water storage tank 111 with a water pump to provide high water pressure to meet and achieve a better flushing effect.

[0043] like Figure 1 , 3 and Figure 6As shown, in some embodiments, a feces scooping device 120 is used to separate cat litter and cat feces in a cat litter box 200. At this time, the cat feces are mainly concentrated on the upper side of the feces scooping device 120. When the feces scooping device 120 rotates to a position near the sewage outlet 2001 in the cat litter box 200, the feces scooping device 120 flips forward to push the cat feces from the sewage outlet 2001 of the cat litter box 200 into the sewage system 300. The cat feces dissolves with the sewage in the sewage system 300. In this way, under the action of the feces scooping device 120, the separation of cat litter and cat feces in the cat litter box 200 and the collection of cat feces can be completed.

[0044] like Figure 1 and Figure 4 As shown, in some embodiments, for ease of understanding, the movement of the poop shoveling device 120 to the side close to the sewage outlet of the cat litter box is defined as the end position, and the initial starting point of the poop shoveling device 120 is defined as the starting point. At this time, the poop shoveling device 120 is axially flipped along the support hole 1011, that is, flipped from the starting position to the end position. During the flipping process, the cat litter and cat feces in the cat litter box 200 are separated, and finally the cat feces are pushed into the sewage system 300 by the shovel rake 121. Furthermore, for cleaning, the sewage system 300 and the cat litter box 200 are a split structure, and the sewage system 300 is arranged below the cat litter box 200 for collecting and discharging cat feces and urine.

[0045] Further, if Figure 4 and Figure 6 As shown, the feces shoveling device 120 is mainly used to separate cat litter and cat feces during the flipping process. The feces shoveling device 120 is installed on the bracket 101. The feces shoveling device 120 includes a driving motor 122, a driving wheel 123, a passive wheel 124 and a shoveling rake 121. The driving wheel 123 is fixedly installed on the rotating shaft of the driving motor. The driving motor 122 is installed on the bracket 101. The shoveling rake 121 is provided with a rotating shaft 1211. The bracket 101 is provided with a support that matches the shoveling rake rotating shaft 1211 and can pass through. Hole 1011, the support hole 1011 and the rotating shaft 1211 are clearance-matched, the passive wheel 124 is fixedly mounted on the shovel 121, and under the meshing drive of the driving wheel 123 and the passive wheel 124, the shovel rotating shaft 1211 can rotate around the support hole 1011 to perform axial forward or backward flipping action, and the cat litter and cat feces are separated by flipping. When in the initial position, it flips backward to a horizontal state, which can reserve enough space for the cat to enter and exit, and when it flips forward, the cat feces can be shoveled into the sewage system 300.

[0046] like Figure 6As shown, in some embodiments, the lower side of the feces shoveling device 120 is provided with a plurality of shovel rakes 121, and the shovel rakes 121 can be turned over in the cat litter box 200 to separate cat feces from cat litter. The lower side of the shovel rake 121 is provided with a plurality of vertical rake teeth 1212, and the spacing between adjacent rake teeth 1212 is larger than the size of the cat litter and smaller than the size of the cat feces, so that the cat litter and cat feces can be separated and turned over during the turning process of the shovel rake 121, and the cat feces are concentrated on the upper side of the rake teeth 1212. When the shovel rake 121 continues the turning process, all the cat feces in the cat litter box 200 are shoveled together on the upper side of the rake teeth 1212, and the cat feces are pushed into the sink 310 of the sewage system 300 at the sewage outlet 2001 of the cat litter box.

[0047] like Figure 4 , 5 and Figure 7 As shown, in some embodiments, in order to ensure that cat feces or cat urine lumps are fully dissolved and discharged, the sewage system 300 includes a sink 310, a crushing device 330 and a sewage pipe 340. The sink 310 is provided with a sewage hole 3101 connected to the sewage pipe 340. The crushing device 330 includes a crushing motor 331 and a crushing knife 332. The crushing device 330 is installed on the crushing device fixing frame 2003 of the cat litter box 200. Similarly, considering the convenience of installation, the crushing device 330 can also be installed on the bracket assembly 100 or the sink 310. The crushing knife 332 extends into the sink 310. After the cat feces or cat urine lumps are crushed by the crushing knife 332 in the sink 310, they are dissolved with sewage and discharged into the sewer or sewage storage tank 350 through the sewage hole 3101 and the sewage pipe 340.

[0048] Furthermore, in order to facilitate the cat feces or cat urine to be fully crushed, in the actual implementation example, the crushing is carried out while spraying water, so that the cat feces or cat urine clumps are fully dissolved in the sewage and discharged while dissolving, avoiding sewage blockage or overflow.

[0049] like Figure 4 and Figure 7 As shown, in some embodiments, in order to facilitate sewage discharge and prevent cat litter from being washed into the sewer by sewage and causing blockage, a sand filter basket 320 is provided in the water tank 310, and the sand filter basket 320 is provided with a leakage hole 2002. The maximum size of the through holes of the cat litter basin 200 and the leakage hole 2002 of the sand filter basket is smaller than the diameter or minimum size of the cat litter, so as to prevent cat litter from falling into the sewer and causing blockage. The outlet of the sewage pipe 340 is connected to the sewer or the sewage storage tank 350.

[0050] like Figure 4 , 5 and Figure 7As shown, in some embodiments, in order to ensure that the cat litter after flushing dries quickly and avoids the breeding of bacteria, a drying and disinfecting device 103 is provided on the body or casing, and the drying and disinfecting device 103 includes at least one of a fan 1031, a heating body 1032 and a disinfecting device 1033. In actual implementation, if the heating body 1032 is used in combination with the fan 1031, it is recommended that the heating body 1032 be placed at the front end of the fan 1031 to avoid the fan 1031 being heated to too high a temperature, which is easy to be damaged and causes safety hazards. The disinfection device 1033 mainly includes a disinfection ultraviolet lamp. When the above-mentioned flushing program is completed, the drying and disinfection device 103 starts to dry and disinfect the cat litter. For safety reasons, the program of the disinfection device 1033 is set to proceed after the drying program is completed, and the disinfection time must be controlled within 30 minutes. Furthermore, in order to ensure the safety of the cat, before starting the disinfection program, keep the fan 1031 working first, because cat urine has the habit of being afraid of the blowing of the fan 1031, which can avoid the hidden danger of the cat entering again and being harmed by the disinfection.

[0051] like Figure 2 and Figure 4 As shown, in some embodiments, in order to achieve intelligent control, an automatic control unit is arranged on the body or casing, including a main control device 102 and an infrared detection device 1021, and the main control device 102 includes a main control board, an electrical system and its intelligent control system; the infrared detection device 1021 is arranged on the bracket assembly 100 at the cat entrance and exit close to the body. When the infrared detects that the cat has an entry and exit signal, the main control device 102 controls the actions of shoveling shit, flushing, crushing, draining and drying and disinfection respectively. For safety, a waterproof cover 104 is also arranged on the outside of the main control device 102.

[0052] Further understanding, a cat litter box automatic cleaning system and control method includes setting an infrared detection device 1021 on the bracket assembly 100, and executing the following steps when the infrared detection device 1021 detects that a cat enters the cat litter box 200 to defecate and then leaves the cat litter box 200:

[0053] For ease of understanding, the position where the poop scooping device moves to a side close to the cat litter box sewage outlet is defined as the end point, and the initial starting point of the poop scooping device is defined as the starting point.

[0054] Step 1, turn on the excrement shoveling mode, the excrement shoveling device 120 is in motion, the driving motor 122 drives the shoveling rake 121 to perform axial flipping motion, and the shoveling rake 121 moves from the starting point A to the end point B near the cat litter box sewage outlet 2001, and shovels the cat excrement into the sewage system 300;

[0055] Step 2, start the return mode of the feces shoveling device 120, drive the motor 122 to reverse, and the shovel rake 121 flips from the end point B to the starting point A;

[0056] Step 3, repeating the actions of step 1 and step 2 for greater than or equal to 1 and less than or equal to 50 cycles;

[0057] Step 4, start the flushing mode, the water inlet valve 113 is actuated to open the water path, and high-pressure water is sprayed into the cat litter box 200 through the nozzle 115. To ensure the flushing effect, the flushing mode can be turned on at any time during the action period from step 1 to step 3;

[0058] Step 5: During the water spraying and rinsing process, the crushing mode is turned on, the crushing device 330 is activated, and the crushing motor 331 drives the crushing blade 332 to rotate to crush the cat feces and cat urine lumps;

[0059] Step 6, turn off the flushing mode and crushing mode, and keep steps 1 to 3 in working state;

[0060] Step 7: Start the drying and disinfection mode, and the fan 1031, the heating body 1032 and the disinfection device 1033 start working, and the operation lasts for a period of 1 to 250 minutes.

[0061] Step 8, turn off the drying and disinfection mode, the shovel rake 121 returns to the starting point A, stops moving, and enters the standby state.

[0062] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An automatic cleaning system for a cat toilet, characterized in that: The invention comprises a body, which is provided with a bracket assembly, a water spraying system, a feces scooping device, a cat litter box and a sewage system. The sewage system is located below the cat litter box. The cat litter box is provided with an inner groove for placing cat litter. The feces scooping device scoops cat feces into the sewage system. The water spraying system sprays water from the outside into the cat litter box to flush the cat litter box. The generated sewage flows into the sewage system through the water leakage hole of the cat litter box. The cat feces are dissolved in the sewage in the sewage system and then discharged to the outside.

2. The automatic cleaning system for a cat toilet according to claim 1, characterized in that: A shell is arranged outside the machine body, and the water spray system is installed on the machine body or the shell. The water spray system comprises a water inlet pipe, a water inlet valve, a water outlet pipe and a nozzle. The water inlet of the water inlet pipe is connected to an external water source, the water outlet of the water inlet pipe is connected to the water inlet of the water inlet valve, the water outlet of the water inlet valve is connected to the water inlet of the water outlet pipe, the water outlet of the water outlet pipe is connected to the water inlet of the nozzle, the number of the nozzle is at least 1, and the single hole diameter or width size of the water spray hole of the nozzle is between greater than or equal to 0.1 mm and less than or equal to 30 mm.

3. The automatic cleaning system for a cat toilet according to claim 1, characterized in that: A feces shoveling device is arranged above or inside the cat litter box, and the cat litter box is provided with a sewage outlet, and the sewage outlet is located above the sewage system. The feces shoveling device shovels cat feces into the sewage system through the sewage outlet. The cat litter box is provided with a water leakage hole, and the opening position height of the water leakage hole is not higher than the outer height of the cat litter box. The flushed sewage flows into the sewage system through the water leakage hole or the sewage outlet.

4. The automatic cleaning system for a cat toilet according to claim 1, characterized in that: The sewage discharge system includes at least one of a water tank, a crushing device and a sewage discharge pipe. The crushing device includes a crushing motor and a crushing knife. The crushing device is arranged on at least one of the bracket assembly, the cat litter box and the water tank. The crushing knife extends into the water tank. The water tank is provided with a sewage discharge hole connected to the sewage discharge pipe. After the cat feces is crushed by the crushing knife and dissolved in sewage, it is discharged through the sewage discharge pipe.

5. The automatic cleaning system for a cat toilet according to claim 2, characterized in that: The machine body or the housing is provided with a drying and disinfecting device, which includes at least one of a fan, a heating body and a disinfecting device. When the flushing procedure is completed, the drying and disinfecting device starts to dry and disinfect the cat litter.

6. The automatic cleaning system for a cat toilet according to claim 2, characterized in that: The water inlet valve includes a control valve or a water pump, and the external water source includes tap water or a water storage tank.

7. The automatic cleaning system for a cat toilet according to claim 4, characterized in that: A sand filter basket is arranged in the water tank, and the sand filter basket is provided with a water leakage hole. The maximum size of the through holes of the cat litter box and the water leakage hole of the sand filter basket is smaller than the diameter or the minimum size of the cat litter, and the water outlet of the sewage pipe is connected to a sewer or a sewage storage tank.

8. The automatic cleaning system for a cat toilet according to claim 2, characterized in that: The machine body or the casing is provided with an automatic control unit, including a main control device and an infrared detection device, wherein the main control device includes a main control board, an electrical system and an intelligent control system thereof; the infrared detection device is arranged on the bracket assembly near the cat entrance and exit, and when the infrared detects that the cat has an entry and exit signal, the main control device controls the program actions of shoveling feces, flushing, crushing, draining, and drying and disinfecting respectively.

9. A control method for an automatic cleaning system for a cat litter box according to any one of claims 1 to 8, characterized in that: The bracket assembly is provided with an infrared detection device. When the infrared detection device detects that the cat enters the litter box to defecate and then leaves the litter box, the following steps are performed: Step 1, turn on the feces shoveling mode, the feces shoveling device starts to work, the driving motor drives the shovel rake to do axial flipping motion, the shovel rake moves from the starting position to the end position close to the cat litter box sewage outlet, and the cat feces are shoveled into the sewage system; Step 2: Turn on the return mode of the poop shoveling device, drive the motor to reverse, and flip the shovel from the end position to the starting position; Step 3, repeating the actions of step 1 and step 2 for greater than or equal to 1 and less than or equal to 50 cycles; Step 4, start the flushing mode, the water inlet valve is actuated to open the water path, and high-pressure water is sprayed into the cat litter box through the nozzle. To ensure the flushing effect, the flushing mode can be turned on at any time during the action period from step 1 to step 3; Step 5: During the water spraying and rinsing process, the crushing mode is turned on at the same time, the crushing device is activated, and the crushing motor drives the crushing blade to rotate to crush the cat feces and cat urine lumps; Step 6, turn off the flushing mode and crushing mode, and keep steps 1 to 3 in working state; Step 7: Turn on the drying and disinfection mode, and the fan, heating element and disinfection start working, and last for more than or equal to 1 and less than or equal to 250 minutes; Step 8. Turn off the drying and disinfection mode, return the shovel and rake to the starting position, stop the action, and enter the standby state.

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