Automatic cat excrement cleaning device

Abstract

An automatic cat droppings cleaning device comprises a cat litter basin, a partition plate divides an inner cavity of the cat litter basin into a front excretion chamber and a rear storage chamber, a discharge port extending transversely is formed in the lower middle portion of the partition plate, a transverse supporting plate is arranged behind the partition plate, a stepping motor is arranged on the transverse supporting plate and connected with a main gear in a driving mode, and buckets are connected to the front portions of two supporting inclined rods. Filter screens are arranged on the two buckets; and a plastic bag which is supported below the discharge port and is opened is arranged in the rear storage chamber. Excrement of cats can be automatically collected and treated, and time and labor are saved. The cleaning effect is good, the sealing and bucket filtering technology is adopted, it is ensured that excrement is thoroughly cleaned and treated, and the cat litter basin is kept clean and sanitary.

Description

Technical Field

[0001] This invention relates to an automatic cat feces cleaning device. Background Technology

[0002] As people's living standards improve, more and more families are choosing to keep pets, with cats being particularly popular due to their cuteness, independence, and ease of care. However, cat waste management has become a major challenge for many cat-owning families. Traditional litter boxes require regular manual cleaning, which is not only time-consuming and laborious but also prone to bacterial growth, affecting the cat's health and the indoor environment. Therefore, developing a device that can automatically clean cat feces is of great significance for improving the quality of life for cat-owning families. Summary of the Invention

[0003] To address the above-mentioned technical shortcomings, this invention provides an automatic cat feces cleaning device that can collect cat excrement and keep the litter box clean and hygienic.

[0004] This invention is achieved through the following measures:

[0005] An automatic cat feces cleaning device includes a horizontally cylindrical litter box. A circular partition is vertically installed at the rear of the litter box, dividing the interior cavity into a front excretion chamber and a rear collection chamber. An inlet is located at the front end of the litter box, and an outlet is located at the top of the litter box at the rear of the front excretion chamber. A horizontally extending outlet is formed in the lower part of the partition. Three vertically extending guide grooves are arranged side-by-side on the upper part of the partition, with their bottoms communicating with the outlet. A horizontal support plate, movable vertically within the rear collection chamber, is located behind the partition. A vertical support plate is integrally and vertically connected to the front end of the horizontal support plate. A stepper motor is mounted on the horizontal support plate, driving a main gear. A main shaft rotatably connected to the vertical support plate is centrally connected to the main gear. Driven gears mesh with the main gear on both sides. A secondary shaft rotatably connected to the vertical support plate is centrally connected to each of the two driven gears. The front ends of both secondary shafts penetrate the vertical support plate. The guide groove is connected to a support slant located in the front excretion chamber. Two buckets with arc-shaped cross-sections extending forward and backward are connected to the front of each support slant. At the end of the rotation stroke of the two driven gears, the two buckets meet at the center of the bottom of the litter box, forming a semi-circular bucket body. Arc-shaped filter screens are provided on the arc surfaces of both buckets. The center of the rear edge of the filter screen is rotatably connected to the rear edge of the bucket via a horizontal pivot. A forward-protruding stop is provided on the partition plate at the lower edge of the discharge outlet. The lower part of the rear edge of the filter screen extends backward, forming a convex edge that can rest against the stop at the end of the bucket's upward movement stroke, causing the front part of the filter screen to flip upward around the horizontal pivot. A plastic bag is provided in the rear storage chamber, which is positioned below the discharge outlet and has an open opening. A rear cover is provided on the rear end face of the litter box behind the rear storage chamber. An electric telescopic rod, a battery, a controller, and a manual switch are provided on the top of the litter box. The lower end of the electric telescopic rod is connected to the rear end of the horizontal support plate. The controller signal connects the electric telescopic rod and the stepper motor.

[0006] The front surface of the aforementioned partition is provided with several forward protrusions arranged vertically and horizontally below the discharge outlet, which can contact the protruding edge during the upward movement of the bucket, and the stop block is located on the top of the forward protrusions.

[0007] The aforementioned electric telescopic rod is installed above the rear of the litter box. The electric telescopic rod extends vertically downwards and moves into the rear storage chamber. The lower end of the electric telescopic rod is connected to the rear end of the horizontal support plate. The main rotating shaft passes forward through the vertical support plate and slides into the guide groove in the middle.

[0008] Plastic bag hooks are installed on the side walls of the aforementioned storage room and on the partition below the outlet.

[0009] The litter box has a rectangular receiving chamber extending upward from the top. Above the partition, there is a sealing plate extending upward into the receiving chamber. The sealing plate divides the receiving chamber into a front receiving chamber and a rear receiving chamber that can accommodate a stepper motor that can be moved to the top. The cat outlet is located at the top of the front receiving chamber.

[0010] The beneficial effects of this invention are: it can automatically collect and process cat excrement, saving time and effort. It also provides excellent cleaning, employing sealing and hopper filtration technology to ensure that excrement is thoroughly cleaned and processed, maintaining the cleanliness and hygiene of the litter box. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0012] Figure 2 This is a schematic diagram of the internal structure of the present invention with the bucket at the bottom position;

[0013] Figure 3 This is a schematic diagram of the vertical support plate structure of the present invention;

[0014] Figure 4 This is a schematic diagram of the structure of the bucket of the present invention in the rising state;

[0015] Figure 5 This is a schematic diagram of the structure of the bucket of the present invention in the open state;

[0016] Figure 6 This is a schematic diagram of the bucket structure of the present invention;

[0017] Figure 7 This is a schematic diagram of the structure of the filter screen on the bucket of the present invention in the state of being tilted up;

[0018] The components include: 1. Litter box, 2. Cat inlet, 3. Cat outlet, 4. Cat chamber, 5. Electric telescopic rod, 6. Horizontal support plate, 7. Stepper motor, 8. Partition, 9. Bucket, 10. Plastic bag hook, 11. Sealing plate, 12. Guide groove, 13. Discharge outlet, 14. Stop block, 15. Supporting diagonal bar, 16. Bucket body, 17. Front protrusion strip, 18. Vertical support plate, 19. Main gear, 20. Driven gear, 21. Filter screen, 22. Horizontal rotating shaft. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings:

[0020] like Figure 1-7As shown, an automatic cat feces cleaning device includes a horizontally cylindrical cat litter box 1. A circular partition 8 is vertically arranged at the rear of the litter box 1, dividing the inner cavity of the litter box 1 into a front excretion chamber and a rear collection chamber. A cat inlet 2 is provided on the front end face of the litter box 1, and a cat outlet 3 is provided on the top of the litter box 1 at the rear of the front excretion chamber. A horizontally extending outlet 13 is opened in the lower middle part of the partition 8, and three vertically extending guide grooves 12 are arranged side-by-side on the upper part of the partition 8, with the bottom of the guide grooves 12 communicating with the outlet 13. A horizontal support plate 6, located in the rear collection chamber and movable vertically, is provided behind the partition 8. A vertical support plate 18 is integrally and vertically connected to the upper front end of the horizontal support plate 6. A stepper motor 7 is installed on the horizontal support plate 6, and the stepper motor 7 drives a main gear 19. The center of the main gear 19 is connected to a main shaft rotatably connected to the vertical support plate 18. Driven gears 20 meshing with the main gear 19 are provided on both sides of the main gear 19. The centers of the two driven gears 20 are each connected to a secondary shaft rotatably connected to the vertical support plate 18. The front ends of the two secondary shafts pass through the vertical support plate 18 and the guide groove 12 and are connected to a support inclined rod 15 located in the front discharge chamber. The front ends of the two support inclined rods 15 are connected to...

[0021] The litter box 1 has two buckets 9 with arc-shaped cross-sections that extend forward and backward. At the end of the rotation stroke of the two driven gears 20, the two buckets 9 meet at the bottom center of the litter box 1 to form a hopper body 16 with a semi-circular cross-section. Arc-shaped filter screens 21 are provided on the arc surfaces of the two buckets 9. The middle of the rear edge of the filter screen 21 is rotatably connected to the rear edge of the bucket 9 via a horizontal rotating shaft 22. A forward-protruding stop block 14 is provided on the partition 8 at the lower edge of the outlet 13. The lower part of the rear edge of the filter screen 21 extends backward. Extending outwards is a convex edge that can be placed under the stop block 14 at the end of the upward stroke of the bucket 9 and cause the front part of the filter screen 21 to flip upwards around the horizontal pivot 22; the rear storage chamber is provided with a plastic bag that is supported below the outlet 13 and has an open opening; the rear end face of the litter box 1 behind the rear storage chamber is provided with a rear cover; the top of the litter box 1 is provided with an electric telescopic rod 5, a battery, a controller and a manual switch; the lower end of the electric telescopic rod 5 is connected to the rear end of the horizontal support plate 6; the controller signal is connected to the electric telescopic rod 5 and the stepper motor 7.

[0022] The front surface of the partition 8 is provided with several forward protrusions 17 arranged vertically and side by side below the outlet 13, which can contact the protruding edge during the upward movement of the bucket 9. The stop block 14 is located on the top of the forward protrusions 17. An electric telescopic rod 5 is provided above the rear of the litter box 1. The electric telescopic rod 5 extends vertically downward and moves into the rear storage chamber. The lower end of the electric telescopic rod 5 is connected to the rear end of the horizontal support plate 6. The main rotating shaft passes forward through the vertical support plate 18 and slides into the guide groove 12 in the middle. Plastic bag hooks 10 are provided on the side wall of the rear storage chamber and on the partition 8 below the outlet 13. A rectangular receiving chamber 4 extends upward from the top of the litter box 1. A sealing plate 11 is provided above the partition 8 and extends upward into the receiving chamber 4. The sealing plate 11 divides the receiving chamber 4 into a front receiving chamber 4 and a rear receiving chamber 4 that can accommodate the stepper motor 7 that moves upward to the top. The cat outlet 3 is located at the top of the front receiving chamber 4.

[0023] When using, place an appropriate amount of cat litter at the bottom of the litter box 1, approximately one-third of the way up. Under normal circumstances, without cleaning, move the scoop 9 upwards. Figure 4 At the indicated height, i.e., when the convex edge just touches the stop block 14, the two buckets 9 open. When there is cat excrement in the litter box, the user presses the switch, the electric telescopic rod 5 moves downward, and at the same time the stepper motor 7 drives the main gear 19 to rotate clockwise. Therefore, the two buckets 9 gradually move closer to the center during the downward movement. Finally, the two buckets 9 come together at the bottom of the litter box 1 to form a semi-circular bucket body 16. At this time, the bucket body 16 is located at the bottom of the litter box. Then the electric telescopic rod 5 moves upward, the stepper motor 7 does not move, the electric telescopic rod 5 drives the horizontal support plate 6, the vertical support plate 18 and all the components installed on the horizontal support plate 6 to rise. The guide groove 12 plays a vertical guiding role during the rise, thereby driving the buckets 9 to rise. During the rise of the buckets 9, the finer cat litter comes out through the filter screen. 21. Some excrement leaks out, while larger pieces remain on filter screen 21. Simultaneously, as bucket 9 rises, the convex edge of filter screen 21 touches the front protrusion 17, causing filter screen 21 to bounce up and down, accelerating the filtering speed. When bucket 9 reaches a certain height, the convex edge of filter screen 21 presses against stop block 14. Then, the electric telescopic rod 5 continues to rise, while the convex edge of filter screen 21 is restrained below stop block 14, forcing the front of filter screen 21 to tilt upwards. The tilted filter screen 21 causes the excrement on it to roll down to discharge outlet 13, then into the plastic bag in the rear storage compartment, thus completing the collection of excrement. Then, the electric telescopic rod 5 descends, causing bucket 9 to move down to... Figure 4At the indicated height, i.e., when the convex edge just touches the stop block 14, the front of the filter screen 21 drops down, and then the stepper motor 7 drives the main gear 19 to rotate counterclockwise, causing the two buckets 9 to open, thus putting the device in its initial state. The battery provides power to the electric telescopic rod 5 and the stepper motor 7. The controller can be a PLC controller, programmed to automatically control the start and stop of the electric telescopic rod 5 and the stepper motor 7. The rear storage chamber is sealed to prevent odor leakage. Various technologies such as drying, deodorization, and sterilization can be used to transform excrement into harmless substances or easily treatable forms. The device's outer casing is waterproof and dustproof to ensure the safety of internal circuits and components. The litter box 1 is integrated with the device, facilitating litter replacement and device cleaning. A control module is used for intelligent control of the device, improving its automation level and user experience.

[0024] The above description is only a preferred embodiment of this patent. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this patent, and these improvements and substitutions should also be considered within the scope of protection of this patent.

Claims

1. An automatic cat feces cleaning device, characterized in that: The cat litter box of the embodiment of the present invention comprises a horizontal cylindrical cat litter box, a circular partition is vertically arranged at the rear part of the cat litter box, the partition divides the cavity in the cat litter box into a front excretion chamber and a rear storage chamber, a cat inlet is arranged on the front end face of the cat litter box, a cat outlet is arranged on the top of the cat litter box at the rear of the front excretion chamber, a laterally extending discharge outlet is opened in the middle and lower part of the partition, three vertically extending guide grooves are arranged side by side on the upper part of the partition, and the bottom of the guide groove is connected with the discharge outlet, a horizontal support plate is arranged behind the partition, which is located in the rear collection chamber and can move up and down, a vertical support plate is integrally connected with the upper part of the front end of the horizontal support plate, a stepping motor is arranged on the horizontal support plate, and a main gear is driven and connected to the main gear, a main shaft rotatably connected to the vertical support plate is connected to the center of the main gear, and driven gears meshing with the main gear are arranged on the left and right sides of the main gear, and the centers of the two driven gears are connected to secondary shafts rotatably connected to the vertical support plate, and the front ends of the two secondary shafts pass through the vertical support plate and the guide groove and are connected A supporting inclined rod is connected to the front excretion chamber, and buckets with a circular arc cross section and extending forward and backward are connected in front of the two supporting inclined rods. At the end of the rotation stroke of the two driven gears, the two buckets are connected in the middle of the bottom of the cat litter box to form a bucket body with a semicircular cross section. Arc-shaped filter screens are arranged on the arc surfaces of the two buckets. The middle part of the rear edge of the filter screen is rotationally connected with the rear edge of the bucket through a transverse rotation axis. A block protruding forward is arranged on the partition at the lower edge of the discharge outlet. The lower part of the rear edge of the filter screen extends backward to form a convex edge that can be pressed under the block at the end of the bucket's upward movement and make the front part of the filter screen turn up around the transverse rotation axis; a plastic bag that is received under the discharge outlet and supports the opening is arranged in the rear storage chamber, and a rear cover is arranged on the rear end surface of the cat litter box behind the rear storage chamber; an electric telescopic rod, a battery, a controller and a manual switch are arranged on the top of the cat litter box, the lower end of the electric telescopic rod is connected to the rear end of the horizontal support plate, and the controller signal connects the electric telescopic rod and the stepping motor.

2. The automatic cat feces cleaning device according to claim 1, characterized in that: The front surface of the partition is provided with a plurality of front convex strips which are arranged side by side and spaced up and down below the discharge port and can touch the convex edge when the bucket moves upward, and the stopper is located at the top of the front convex strips.

3. The automatic cat feces cleaning device according to claim 1, characterized in that: The electric telescopic rod is arranged above the rear part of the cat litter box, extends vertically downward and movably into the rear storage chamber, the lower end of the electric telescopic rod is connected to the rear end of the horizontal support plate, and the main shaft passes through the vertical support plate forward and slides into the middle guide groove.

4. The automatic cat feces cleaning device according to claim 1, characterized in that: Plastic bag hooks are arranged on the side walls in the rear storage chamber and on the partition below the discharge port.

5. The automatic cat feces cleaning device according to claim 1, characterized in that: A rectangular accommodating chamber is extended upward from the top of the cat litter box, and a sealing plate is arranged above the partition and extends upward into the accommodating chamber. The sealing plate divides the accommodating chamber into a front accommodating chamber and a rear accommodating chamber that can accommodate a stepper motor that moves upward to the top, and the cat outlet is arranged at the top of the front accommodating chamber.

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