Device with automatic pet excrement cleaning function

Abstract

The invention relates to the technical field of animal excrement cleaning equipment, in particular to an automatic pet excrement cleaning device which comprises a cat litter box, a mounting box is fixedly mounted at the bottom of the cat litter box, an infrared sensor is mounted in the cat litter box, and cat litter is laid at the bottom end in the cat litter box. A cleaning mechanism capable of shoveling excrement in the cat litter is further fixedly mounted in the cat litter box, a conveying pipe is communicated between the cat litter box and the mounting box, a mounting round box is fixedly connected to the bottom end in the mounting box, a mounting cavity used for storing garbage is further formed in the mounting box, and a mechanical arm is mounted in the mounting box; two groups of cooling and heating mechanisms capable of tightening the circular plastic bags are further fixedly mounted in the mounting box, and a mounting cavity capable of placing the packed circular plastic bags into the mounting cavity is further fixedly mounted at the bottom end in the mounting box, so that excrement can be packed more quickly, and spreading of odor is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of animal excrement cleaning equipment, in particular to a device capable of automatically cleaning pet excrement. Background Art

[0002] As people's living standards improve, their requirements for quality of life are constantly increasing, and the demand for pets is also increasing year by year. More and more families are raising pets at home, but the problem that follows is that the environment around people is getting worse and worse because of pets. In order to change the environment, various pet products have emerged, and pet-specific feces boxes are one of them. However, the existing pet feces boxes are not easy to clean, and after using them several times, they will be stained with more pet feces and are difficult to remove. This not only brings a lot of trouble to pet owners, but also poses a great threat to the health of the pets themselves. Although the traditional packaging device packs the feces, the smell is difficult to cover up, and manual packaging is too troublesome.

[0003] After searching, it was found that the prior art publication number is CN107318693B, which discloses an automatic pet excrement packaging device, including multiple cleaning bags for packaging pet excrement, and also includes a base, on which two rows of support members arranged at intervals are vertically arranged, and there are two support members in the same row, and they are arranged at intervals; multiple cleaning bags are stacked together in sequence, and multiple cleaning bags have elastic shrink bag openings, and each elastic shrink bag opening is respectively equipped with multiple rings, and multiple rings are respectively sleeved on corresponding support members; the two support members in the front row of the base are screw rods, and the rings sleeved on the screw rods are all provided with matching internal threads, and the lower end of the screw rod is movably connected to the base, and a first driving device is installed in the base; the first driving device is connected to the two screw rods through a transmission assembly. Compared with the prior art, the invention can automatically package pet excrement multiple times, has the characteristics of simple structure and convenient use, is easy to clean pet excrement, and is convenient and hygienic.

[0004] Therefore, based on the above search and in combination with the existing ones, when the above scheme is used, the pet feces is simply packed. Since the packing process is all manual operation, it is too troublesome, and the odor cannot be reduced during packing. In order to reduce the odor spread and the problem that manual packing of feces is too troublesome, we propose a device that can automatically clean pet excrement. Summary of the invention

[0005] The object of the present invention is to provide a device for automatically cleaning pet excrement to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] As a further feature of this solution, a mounting box is fixedly installed at the bottom of the cat litter box, an infrared sensor is installed inside the cat litter box, cat litter is laid at the bottom end of the cat litter box, a cleaning mechanism for shoveling feces in the cat litter is also fixedly installed inside the cat litter box, a delivery pipe is connected between the cat litter box and the mounting box, a mounting round box is fixedly connected to the bottom end of the mounting box, and a round plastic sheet is laid inside the mounting round box;

[0008] A picking mechanism for picking up round plastic sheets inside the installation round box is fixedly installed on the top of the inner wall of the installation box, an installation cavity for storing garbage is also opened inside the installation box, a mechanical arm is installed inside the installation box, two sets of hot and cold mechanisms for tightening round plastic bags are also fixedly installed inside the installation box, and a device for placing packaged round plastic bags into the installation cavity is also fixedly installed at the bottom of the installation box.

[0009] As a further embodiment of the present invention, the cleaning mechanism includes a moving bar, and the moving bar is slidably installed in the inner wall of the cat litter box, the outer wall of the moving bar is also fixedly connected to a flat plate, and two groups of second recovery wheels are rotatably connected to the bottom end of the inner wall of the installation box, and two groups of first springs are also fixedly connected between the moving bar and the inner wall of the installation box, and the two groups of second recovery wheels are fixedly connected to each other, and the outer wall of each group of the second recovery wheels is fixedly connected to a first pull rope, and the outer wall of each group of the first pull rope is fixedly connected to the moving bar, and a reset retraction rod is fixedly connected between the electromagnetic block and the corresponding second recovery wheel.

[0010] As a further feature of the present invention, a driving motor is fixedly installed on the bottom end of the inner wall of the installation box, and a second gear is fixedly connected to the output end of the driving motor, and a transfer round box is fixedly connected to the end of the second gear away from the driving motor, and a plurality of ball grooves are provided inside the transfer round box, an electromagnetic block is arranged in the center of the interior of the transfer round box, and a plurality of limit springs are fixedly connected to the outer wall of the electromagnetic block, and an abutment ball is fixedly connected to the output end of the limit spring, and the end of the electromagnetic block away from the transfer round box is fixedly connected to the outer wall of a corresponding group of second recovery wheels.

[0011] As a further feature of the present invention, the picking mechanism includes two groups of circular tubes, wherein the upper end of one group of circular tubes is fixedly connected to the inner wall of the installation box, a plurality of fixing bars are fixedly connected between the inner walls of the two groups of circular tubes, a moving block is slidably connected to the inner wall of each group of fixing bars, an elastic rope is fixedly connected between the bottom of the moving block and the corresponding fixing bar, and a second elastic telescopic rod is fixedly connected to one end of the moving block away from the fixing bar.

[0012] As a further embodiment of the present invention, a shrinkage sleeve is fixedly connected to the bottom of the second elastic telescopic rod, a first recovery wheel is rotatably connected to the bottom end of the inner wall of the installation box, and a third pull rope is fixedly connected between each group of the moving blocks and the first recovery wheel, a first gear is fixedly connected to the outer wall of the first recovery wheel, and the first gear and the second gear are meshed with each other.

[0013] As a further embodiment of the present invention, the hot and cold mechanism includes a fixed circular tube, and the outer wall of the fixed circular tube is fixedly connected to a second connecting circular tube, and the inner wall of the second connecting circular tube is fixedly connected to a connecting circular plate, and the end of the connecting circular plate away from the second connecting circular tube is fixedly connected to a plurality of guide air blocks, and the outer wall of each group of the guide air blocks is provided with an inclined wall.

[0014] As a further feature of the present invention, the end of the second connecting circular tube away from the connecting circular plate is fixedly connected to the first connecting circular tube, and the end of the fixed circular tube away from the second connecting circular tube is fixedly connected to the ventilation pipe, the end of the ventilation pipe close to the fixed circular tube is fixedly connected to a conical block, and the conical block is cone-shaped and is located inside the fixed circular tube.

[0015] As a further feature of the present invention, the installation cavity and the inner wall of the cat litter box are fixedly connected with an air pipe, and the air pipe and the outer wall of the circular tube are fixedly installed with a plurality of air nozzles, each group of the air pipes is fixedly connected to the corresponding first connecting circular tube through a pipe, each group of the circular tubes is fixedly connected to the corresponding ventilation pipe through a pipe, a high-pressure air pump is fixedly installed on the bottom end of the inner wall of the installation box, and the air outlet of the high-pressure air pump is fixedly connected to each group of the second connecting circular tubes.

[0016] Beneficial Effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. All the second elastic telescopic rods will drive the shrinkage sleeve to gather towards the center, and the round plastic bag will wrap the feces. Then, by starting the high-pressure air pump, the high-pressure air pump will fill the second connecting round tube with high-pressure air. When the gas enters the second connecting round tube, high-temperature gas is discharged from the ventilation pipe, and low-temperature gas is discharged from the first connecting round tube. The hot air will blow the round plastic bag, and the round plastic bag will shrink to pack the feces. In this process, there is no need to manually pack the feces, which is simple and quick.

[0019] 2. When cold air enters the cat litter box and the installation cavity, the cold air can reduce the activity of odor molecules, so that the odor will not spread easily, thereby reducing the odor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural front view of the present invention;

[0021] Figure 2 It is a structural cross-sectional view of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the installation box of the present invention;

[0023] Figure 4 It is a schematic diagram of the internal structure of the cat litter box of the present invention;

[0024] Figure 5 This is a schematic diagram of the position structure of the first recovery wheel of the present invention;

[0025] Figure 6 It is a schematic diagram of the internal structure of the transfer round box of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the picking mechanism of the present invention;

[0027] Figure 8 It is a schematic diagram of the position structure of the second elastic telescopic rod of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the cooling and heating mechanism of the present invention.

[0029] In the figure: 1, cat litter box; 2, installation box; 3, climbing board; 4, installation cavity; 5, installation round box; 6, conveying pipe; 7, abutment ball; 8, mechanical arm; 9, abutment wheel; 10, limit spring; 11, abutment arm; 12, first pull rope; 13, sliding rod; 14, abutment bar; 15, moving bar;

[0030] 16. first spring; 17. paving plate; 18. driving motor; 19. transfer round box; 20. first gear; 21. second gear; 22. first recovery wheel; 23. third pull rope; 24. first connecting round tube; 25. second recovery wheel; 26. ball slot; 27. electromagnetic block; 28. shrink sleeve; 29. ​​second elastic telescopic rod;

[0031] 30. Annular tube; 31. Fixed bar; 33. Moving block; 34. High-pressure air pump; 35. Air pipe; 36. Second connecting circular tube; 37. Fixed circular tube; 38. Ventilation pipe; 39. Conical block; 40. Connecting circular plate; 41. Guide air block; 42. Elastic rope; 101. Cleaning mechanism; 201. Picking mechanism; 301. Hot and cold mechanism. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figure 1 , 2 As shown in Figure 3, a device for automatically cleaning pet excrement comprises a cat litter box 1, a mounting box 2 is fixedly installed at the bottom of the cat litter box 1, an infrared sensor is installed inside the cat litter box 1, a climbing board 3 is fixedly connected to the outer wall of the cat litter box 1, and the climbing board 3 is designed at an inclined angle, the climbing board 3 can help the cat to enter the cat litter box 1 more conveniently, cat litter is laid on the bottom end of the cat litter box 1, a cleaning mechanism 101 for shoveling feces in the cat litter is also fixedly installed inside the cat litter box 1, a conveying pipe 6 is connected between the cat litter box 1 and the mounting box 2, a mounting round box 5 is fixedly connected to the bottom end of the mounting box 2, a round plastic sheet is laid inside the mounting round box 5, the round plastic sheet is made of polyethylene PE, and when this plastic bag is heated, the molecular chains will rearrange and shrink, thereby tightly wrapping the feces, a picking mechanism 201 for picking up the round plastic sheet inside the mounting round box 5 is fixedly installed on the top of the inner wall of the mounting box 2, and the picking mechanism 201 for picking up the round plastic sheet inside the mounting round box 5 is fixedly installed. The mechanism 201 is located directly above the installation circular box 5. The bottom end of the inner wall of the installation box 2 is also rotatably connected to a plurality of abutment arms 11 with a reset function, and the abutment arms 11 are "L"-shaped. The end of the abutment arm 11 away from the inner wall of the installation box 2 is rotatably connected to an abutment wheel 9 through a rotating shaft, and the plurality of abutment arms 11 are distributed in a circle with the installation circular box 5 as the center. The outer wall of the abutment wheel 9 abuts the outer wall of the circular plastic sheet. Each group of abutment arms 11 can drive the outer wall of the abutment wheel 9 to abut the circular plastic bag, which can fix the circular plastic bag. When the circular plastic bag needs to be picked up, the first layer of circular plastic bags leaves the abutment with the outer wall of the abutment wheel 9, and the abutment wheel 9 reduces the friction between the circular plastic bag and the abutment arm 11. An installation cavity 4 for storing garbage is also provided inside the installation box 2. A mechanical arm 8 is installed inside the installation box 2. Two groups of hot and cold mechanisms 301 that can tighten the circular plastic bags are also fixedly installed inside the installation box 2.

[0034] Example 2: Please refer to Figure 4As shown, the cleaning mechanism 101 includes a moving bar 15, and the moving bar 15 is slidably installed in the inner wall of the cat litter box 1. Specifically, the inner wall of the cat litter box 1 is also fixedly connected with two groups of sliding rods 13, and the moving bar 15 is slidably installed on the outer walls of the two groups of sliding rods 13, and the outer walls of each group of sliding rods 13 are coated with lubricating oil. When the moving bar 15 moves on the outer walls of the sliding rods 13, the two groups of sliding rods 13 can guide the moving bar 15, and can also limit the moving bar 15, and improve the moving bar 1 5 stability during movement, the outer wall of the moving bar 15 is fixedly connected with a plurality of abutment bars 14, and the plurality of abutment bars 14 are distributed in an array on the outer wall of the moving bar 15, the outer wall of the moving bar 15 is also fixedly connected with a flattening plate 17, and the flattening plate 17 is inclined, the bottom end of the inner wall of the installation box 2 is rotatably connected with two groups of second recovery wheels 25 through a rotating shaft, and the two groups of second recovery wheels 25 are symmetrically distributed at the bottom end of the inner wall of the installation box 2, and two groups of first springs 16 are fixedly connected between the moving bar 15 and the inner wall of the installation box 2.

[0035] See also Figure 5 and Figure 6 As shown, two groups of second recovery wheels 25 are fixedly connected, the outer wall of each group of second recovery wheels 25 is fixedly connected to the first pull rope 12, and the outer wall of each group of first pull rope 12 is fixedly connected to the moving bar 15. A driving motor 18 is also fixedly installed at the bottom end of the inner wall of the installation box 2, and the output end of the driving motor 18 is fixedly connected to the second gear 21. The end of the second gear 21 away from the driving motor 18 is fixedly connected to the transfer round box 19, and the transfer round box 19 is made of metal. A plurality of ball grooves 26 are opened inside the transfer round box 19, and the plurality of ball grooves 26 are distributed in a circle in the inner wall of the transfer round box 19. An electromagnetic block 27 is arranged in the middle of the interior of the transfer round box 19, and the outer wall of the electromagnetic block 27 is fixed It is connected to a plurality of limit springs 10, and an abutment ball 7 is fixedly connected to the output end of the limit spring 10. The plurality of abutment balls 7 are also distributed in a circle on the outer wall of the electromagnetic block 27, and the abutment balls 7 are spherical. A plurality of connecting rods are arranged inside the limit spring 10, and the connecting rods are fixedly connected to the electromagnetic block 27, and each group of the abutment balls 7 is slidably connected to the outer wall of the connecting rod. The connecting rods can prevent the abutment balls 7 from deviating when the outer wall of the abutment ball 7 abuts against the inner wall of the ball groove 26. The end of the electromagnetic block 27 away from the adapter round box 19 is fixedly connected to the outer wall of a corresponding group of second recovery wheels 25, and a reset retraction rod is fixedly connected between the electromagnetic block 27 and the corresponding second recovery wheel 25.

[0036] See also Figure 5 , 7As shown in , 8, the picking mechanism 201 includes two groups of annular tubes 30, and the two groups of annular tubes 30 are distributed up and down inside the installation box 2, and the upper end of one group of annular tubes 30 is fixedly connected to the inner wall of the installation box 2, and a plurality of fixing bars 31 are fixedly connected between the inner walls of the two groups of annular tubes 30, and the plurality of fixing bars 31 are also distributed in a circle in the inner walls of the two groups of annular tubes 30, and a moving block 33 is slidably connected to the inner wall of each group of fixing bars 31. Specifically, a slide groove is opened inside each group of fixing bars 31, and the moving block 33 is slidably installed in the corresponding inner wall of the slide groove, and the action and effect between the moving block 33 and the slide groove are the same as those between the sliding rod 13 and the moving bar 15. , no further details are given here. An elastic rope 42 is fixedly connected between the bottom of the moving block 33 and the corresponding fixed bar 31, and the elastic rope 42 is made of rubber material with good elasticity and resilience. The end of the moving block 33 away from the fixed bar 31 is fixedly connected to the second elastic telescopic rod 29, and the bottom of the second elastic telescopic rod 29 is fixedly connected to the shrink sleeve 28. The bottom end of the inner wall of the installation box 2 is rotatably connected to the first recovery wheel 22, and each group of moving blocks 33 is fixedly connected to the first recovery wheel 22. The outer wall of the first recovery wheel 22 is fixedly connected to the first gear 20, and the first gear 20 and the second gear 21 are meshed with each other;

[0037] When the first recovery wheel 22 rotates, the rotation of the first recovery wheel 22 will pull all the third pull ropes 23, and the third pull ropes 23 will drive the corresponding moving blocks 33 to move, and all the moving blocks 33 will lift the round plastic bag adsorbed by the shrink sleeve 28. When the feces inside the conveying tube 6 falls from the conveying tube 6 into the upper end of the lifted round plastic bag, the collection of feces can be completed.

[0038] See also Figure 2 , 9As shown, the hot and cold mechanism 301 includes a fixed circular tube 37, and the outer wall of the fixed circular tube 37 is fixedly connected to the second connecting circular tube 36, and the inner wall of the second connecting circular tube 36 is fixedly connected to a connecting circular plate 40, and the end of the connecting circular plate 40 away from the second connecting circular tube 36 is fixedly connected to a plurality of guide air blocks 41, and the plurality of guide air blocks 41 are distributed in a circle on the outer wall of the connecting circular plate 40, and the outer wall of each group of guide air blocks 41 is provided with an inclined wall, and each group of inclined walls is inclined, and the end of the second connecting circular tube 36 away from the connecting circular plate 40 is fixedly connected to the first connecting circular tube 24, and the end of the fixed circular tube 37 away from the second connecting circular tube 36 is fixedly connected to the ventilation pipe 38, and the ventilation pipe 38, the fixed circular tube 37, and the connecting circular plate 40 are fixedly connected to the second connecting circular tube 36. The connecting circular plate 40, the second connecting circular tube 36 and the first connecting circular tube 24 are connected as one body, a conical block 39 is fixedly connected to one end of the ventilation tube 38 close to the fixed circular tube 37, and the conical block 39 is conical, and the conical block 39 is located inside the fixed circular tube 37, the installation cavity 4 and the inner wall of the cat litter box 1 are fixedly connected with the air supply pipe 35, and the air supply pipe 35 and the outer wall of the annular tube 30 are fixedly installed with a plurality of air nozzles, each group of air supply pipes 35 is fixedly connected with the corresponding first connecting circular tube 24 through a pipeline, and each group of annular tubes 30 is fixedly connected with the corresponding ventilation pipe 38 through a pipeline, and a high-pressure air pump 34 is fixedly installed at the bottom end of the inner wall of the installation box 2, and the air outlet of the high-pressure air pump 34 is fixedly connected with each group of second connecting circular tubes 36.

[0039] The working principle of the present invention is as follows: when in use, when a cat enters the cat litter box 1, discharges excrement in the cat litter box 1 and then leaves the cat litter box 1, the infrared sensor will detect that there is no cat in the cat litter box 1, and will start the driving motor 18 to drive the second gear 21 to rotate, and the second gear 21 will drive the abutment ball 7 engaged with the ball groove 26 in the inner wall to rotate through the adapter round box 19, and the abutment ball 7 drives the electromagnetic block 27 to rotate, and there is a gap between the electromagnetic block 27 and the inner wall of the adapter round box 19, and the electromagnetic block 27 drives two sets of second recovery wheels 25 to rotate, and the second recovery wheel 25 will pull the first pull rope 12, and the first pull rope 12 will pull the second recovery wheel 25 to recycle the corresponding first pull rope 12, and the first pull rope 12 will pull the moving bar 15, and the moving bar 15 drives all the abutment bars 14 and the paving plate 17 to move at the same time, and the abutment bar 14 pushes the feces into the conveying pipe 6, and then falls from the conveying pipe 6 onto the round plastic sheet;

[0040] At the same time, when the driving motor 18 rotates, the second gear 21 and the first gear 20 will be driven to rotate at the same time, and the first gear 20 will drive the first recovery wheel 22 to rotate, and the installation box 2 will pull the third pull rope 23. When all the third pull ropes 23 are pulled, the third pull rope 23 will pull the corresponding moving block 33 to move in the inner wall of the fixed bar 31, and the moving block 33 drives the second elastic telescopic rod 29 to move up, and the second elastic telescopic rod 29 drives the shrinking sleeve 28 to adsorb the circular plastic sheet at the bottom. When the moving block 33 moves to the position of the uppermost group of circular ring tubes 30, according to the above, the feces will fall on the circular plastic sheet. At this time, the moving bar 15 is in contact with the inner wall of the cat litter box 1 and cannot continue to move, and the driving motor The machine 18 continues to drive the second gear 21 and the transfer round box 19 to continue to rotate. When the second gear 21 drives the transfer round box 19 to rotate, the abutment ball 7 in the inner wall of the transfer round box 19 is driven by the limit spring 10 to disengage from the inner wall of the ball groove 26. When the abutment ball 7 is disengaged from the inner wall of the ball groove 26, the abutment ball 7 will enter the inner wall of the ball groove 26 of the next group and engage. At this time, the second gear 21 can continue to drive the first gear 20 to rotate through the second gear 21, and the first gear 20 drives the first recovery wheel 22 to rotate. The first recovery wheel 22 will continue to recover all the third pull ropes 23. At this time, according to the above, all the second elastic telescopic rods 29 will drive the shrink sleeve 28 to gather toward the center, and the round plastic bag will wrap the feces;

[0041] The high-pressure air pump 34 is started again, and the high-pressure air pump 34 fills the second connecting circular tube 36 with high-pressure air. When the gas enters the second connecting circular tube 36, it passes between the outer walls of each group of guide air blocks 41, and is then guided by the inclined wall to enter the fixed circular tube 37 and move in a spiral direction toward the vent pipe 38. At the vertex of the conical block 39, a group of high-pressure air flows rotating in the opposite direction to the inside of the fixed circular tube 37 are formed and move in the opposite direction to the first connecting circular tube 24. The two groups of reverse air flows rub against each other. Therefore, high-temperature gas is discharged from the vent pipe 38, while high-temperature gas is discharged from the first connecting circular tube 24. The discharged gas is low-temperature gas, so when the gas discharged from the ventilation pipe 38 enters the inside of the annular tube 30, it is sprayed out from the nozzle on the outer wall of the annular tube 30. The round plastic sheet shrinks when heated and will wrap the feces. Then the robot arm 8 will throw the wrapped feces plastic bag into the installation cavity 4. Then the first connecting circular tube 24 will discharge the low-temperature gas into the high-pressure air pump 34. The high-pressure air pump 34 will discharge cold air into the installation cavity 4 and the inside of the cat litter box 1. Since the smell of feces is pungent and unpleasant, the cold air can reduce the activity of gas molecules, thereby playing a role in reducing the spread of odor.

[0042] When the above work is completed, the electromagnetic block 27 is started, and the electromagnetic block 27 drives all the abutting balls 7 to disengage from the inner wall of the ball groove 26. At this time, the first spring 16 pulls the moving bar 15 to reset, and the moving bar 15 pulls the first pull rope 12 while resetting, and the first pull rope 12 also drives the second recovery wheel 25 to reset and rotate, and then the driving motor 18 is started to rotate the second gear 21 in the opposite direction, and the second gear 21 drives the first gear 20 to rotate in the opposite direction, and the first gear 20 also drives the first recovery wheel 25 to reset and rotate. The gear 20 rotates in the opposite direction to release the third pull rope 23, and the elastic rope 42 will pull the corresponding moving block 33 to reset. When the moving block 33 drives the second elastic telescopic rod 29 and the shrinking sleeve 28 to reset, the second elastic telescopic rod 29 will tightly adsorb the bottom of the shrinking sleeve 28 to the outer wall of the next group of circular plastic bags, and the moving block 33 will also pull the third pull rope 23 during the descending process. When all the moving blocks 33 are reset, the electromagnetic block 27 is turned off to make the outer wall of the abutment ball 7 engage with the corresponding inner wall of the ball groove 26.

[0043] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed in the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for automatically cleaning pet excrement, comprising a cat litter box (1), characterized in that: The bottom of the cat litter box (1) is fixedly provided with a mounting box (2), an infrared sensor is installed inside the cat litter box (1), cat litter is laid at the bottom of the cat litter box (1), a cleaning mechanism (101) capable of shoveling feces in the cat litter is also fixedly installed inside the cat litter box (1), a conveying pipe (6) is connected between the cat litter box (1) and the mounting box (2), a mounting round box (5) is fixedly connected to the bottom of the mounting box (2), and a round plastic sheet is laid inside the mounting round box (5); A picking mechanism (201) capable of picking up a circular plastic sheet inside the circular installation box (5) is fixedly installed on the top of the inner wall of the installation box (2), a mounting cavity (4) for storing garbage is also provided inside the installation box (2), a mechanical arm (8) is installed inside the installation box (2), and two sets of hot and cold mechanisms (301) capable of tightening the circular plastic bag are also fixedly installed inside the installation box (2).

2. The device for automatically cleaning pet excrement according to claim 1, characterized in that: The cleaning mechanism (101) comprises a moving bar (15), and the moving bar (15) is slidably installed in the inner wall of the cat litter box (1), and the outer wall of the moving bar (15) is also fixedly connected to a flat plate (17), and two groups of second recovery wheels (25) are rotatably connected to the bottom end of the inner wall of the installation box (2), and two groups of first springs (16) are also fixedly connected between the moving bar (15) and the inner wall of the installation box (2), and the two groups of the second recovery wheels (25) are fixedly connected, and the outer wall of each group of the second recovery wheels (25) is fixedly connected to a first pull rope (12), and the outer wall of each group of the first pull rope (12) is fixedly connected to the moving bar (15).

3. The device for automatically cleaning pet excrement according to claim 2, characterized in that: A driving motor (18) is also fixedly mounted on the bottom end of the inner wall of the installation box (2); the output end of the driving motor (18) is fixedly connected to a second gear (21); the end of the second gear (21) away from the driving motor (18) is fixedly connected to a transfer round box (19); a plurality of ball grooves (26) are provided inside the transfer round box (19); an electromagnetic block (27) is arranged in the middle of the transfer round box (19); a plurality of limit springs (10) are fixedly connected to the outer wall of the electromagnetic block (27); the output end of the limit spring (10) is fixedly connected to an abutment ball (7); the end of the electromagnetic block (27) away from the transfer round box (19) is fixedly connected to the outer wall of a corresponding group of second recovery wheels (25); and a reset retraction rod is fixedly connected between the electromagnetic block (27) and the corresponding second recovery wheel (25).

4. The device for automatically cleaning pet excrement according to claim 1, characterized in that: The picking mechanism (201) comprises two groups of annular tubes (30), wherein the upper end of one group of the annular tubes (30) is fixedly connected to the inner wall of the installation box (2), a plurality of fixing bars (31) are fixedly connected between the inner walls of the two groups of the annular tubes (30), a moving block (33) is slidably connected in the inner wall of each group of the fixing bars (31), an elastic rope (42) is fixedly connected between the bottom of the moving block (33) and the corresponding fixing bar (31), and a second elastic telescopic rod (29) is fixedly connected to one end of the moving block (33) away from the fixing bar (31).

5. The device for automatically cleaning pet excrement according to claim 4, characterized in that: The bottom of the second elastic telescopic rod (29) is fixedly connected to a shrink sleeve (28), the bottom end of the inner wall of the installation box (2) is rotatably connected to a first recovery wheel (22), and a third pull rope (23) is fixedly connected between each group of the moving blocks (33) and the first recovery wheel (22), the outer wall of the first recovery wheel (22) is fixedly connected to a first gear (20), and the first gear (20) and the second gear (21) are meshed with each other.

6. The device for automatically cleaning pet excrement according to claim 1, characterized in that: The hot and cold mechanism (301) comprises a fixed circular tube (37), and the outer wall of the fixed circular tube (37) is fixedly connected to a second connecting circular tube (36), and the inner wall of the second connecting circular tube (36) is fixedly connected to a connecting circular plate (40), and one end of the connecting circular plate (40) away from the second connecting circular tube (36) is fixedly connected to a plurality of guide air blocks (41), and the outer wall of each group of the guide air blocks (41) is provided with an inclined wall.

7. The device for automatically cleaning pet excrement according to claim 6, characterized in that: The end of the second connecting circular tube (36) away from the connecting circular plate (40) is fixedly connected to the first connecting circular tube (24), and the end of the fixed circular tube (37) away from the second connecting circular tube (36) is fixedly connected to the ventilation tube (38), and the end of the ventilation tube (38) close to the fixed circular tube (37) is fixedly connected to a conical block (39), and the conical block (39) is conical and is located inside the fixed circular tube (37).

8. The device for automatically cleaning pet excrement according to claim 7, characterized in that: The installation cavity (4) and the inner wall of the cat litter box (1) are both fixedly connected with an air supply pipe (35), and the air supply pipe (35) and the outer wall of the circular tube (30) are both fixedly installed with a plurality of air nozzles, each group of the air supply pipes (35) is fixedly connected to the corresponding first connecting circular tube (24) through a pipeline, and each group of the circular tube (30) is fixedly connected to the corresponding ventilation pipe (38) through a pipeline, and a high-pressure air pump (34) is fixedly installed at the bottom end of the inner wall of the installation box (2), and the air outlet of the high-pressure air pump (34) is fixedly connected to each group of the second connecting circular tube (36).

Images