An automatic cat litter cleaning cat litter box

Abstract

The present application relates to the technical field of cat litter box, and particularly relates to a cat litter box capable of automatically cleaning cat litter, which comprises a cat litter box, a bottom plate, a driving motor, a horizontal moving screw rod, a limiting rod, a sliding plate, a screening comb, a multistage hydraulic rod, a rotating seat, a lifting plate, a limiting block, a partition plate and a storage bin, and the bottom plate has an inclined surface; the cat litter box is square, and the inclined surface of the bottom plate is used for placing cat litter; the driving motor drives the screening comb to move, and carries the cat litter clumps formed by cat defecation to the top of the bottom plate; when the clumps are carried to the lifting plate, the multistage hydraulic rod is started to push the lifting plate out; when the lifting plate moves above the partition plate, the lifting plate is blocked by the limiting block and is deflected to pour the clumps into the storage bin, thus completing the automatic cleaning of cat litter once; and the problems that the existing cat litter box is designed in a spherical shape, the volume is too small, the cat litter spreading range is small, and the cat defecation is easy to adhere to the inner wall of the spherical shape are solved.

Description

Technical Field

[0001] This invention relates to the field of cat litter box technology, and more particularly to a cat litter box that automatically cleans cat litter. Background Technology

[0002] Cats are quite independent animals, but to keep them healthy and active, they need proper care and attention. Each time a cat goes to the litter box, it first digs a small area in the sand or soil to urinate or defecate there. However, most city dwellers live in apartments and have to buy cat litter instead of sand or soil. Cat litter absorbs cat feces, causing them to clump together and absorbing odors. If the owner is home, they can manually remove the litter regularly. But when the owner is away, the clumps of litter are left unattended, and over time, the cat will refuse to use the litter box, causing inconvenience to the owner.

[0003] Most existing smart litter boxes that can clean cat litter have a spherical inner cavity with cat litter placed at the bottom. After the cat defecates, the litter is separated from the clumps of feces by flipping the box.

[0004] However, the spherical design of this device results in a smaller litter spread area, and cats tend to defecate on the inner wall of the spherical cavity, making cleaning inconvenient. At the same time, this spherical design also results in a closed space above, significantly reducing the overall volume and making it unable to accommodate larger cats. Summary of the Invention

[0005] The purpose of this invention is to provide a litter box that automatically cleans cat litter, aiming to solve the problems of existing litter boxes having a small volume due to their spherical design, a small litter spreading area, and feces easily adhering to the inner wall of the spherical shape.

[0006] To achieve the above objectives, the present invention provides an automatic litter box, comprising a litter box, a base plate, a drive motor, a transverse screw, a limiting rod, a sliding plate, a screening comb, a multi-stage hydraulic rod, a rotating seat, a lifting plate, a limiting block, a partition, and a storage compartment. The base plate has an inclined surface; the base plate is fixed in the litter box; the drive motor is fixed in the side wall of the litter box; the transverse screw is fixed at the output end of the drive motor; the drive motor and the transverse screw are inclined, with the curvature being the same as the inclined surface of the base plate. The limiting rod is rotatably disposed within the side wall of the litter box away from the transverse screw; the sliding plate is threadedly connected to the transverse screw and slidably connected to the limiting rod; the screening comb is fixed below the sliding plate; the multi-stage hydraulic rod is fixed in the litter box; the rotating seat is rotatably disposed at the output end of the multi-stage hydraulic rod; the lifting plate is disposed on the rotating seat; the limiting block is fixed on the side wall of the litter box; the partition is fixed in the litter box; and the storage compartment is located between the partition and the litter box.

[0007] The litter box for automatically cleaning cat litter also includes a receiving plate with chamfered edges; the receiving plate is fixed below the filter comb.

[0008] The litter box for automatically cleaning cat litter further includes a torsion spring and a limiting platform. The torsion spring is fixedly connected to the rotating seat and to the output end of the multi-stage hydraulic rod. The limiting platform is fixed to the output end of the multi-stage hydraulic rod.

[0009] The litter box with automatic litter cleaning further includes a connecting arm and a baffle plate, wherein the connecting arm is fixed to the lifting plate and the baffle plate is fixed to the connecting arm.

[0010] The litter box with automatic litter cleaning also includes a storage box and a pull ring. The storage box is slidably disposed in the litter box, and the pull ring is fixed to the side of the storage box.

[0011] The litter box with automatic litter cleaning also includes support legs and a weighing device, with the weighing device located below the litter box and the support legs fixed below the weighing device.

[0012] The litter box with automatic litter cleaning also includes multiple infrared sensors, which are arranged around the perimeter of the litter box.

[0013] This invention discloses an automatic litter box for cleaning cat litter. The litter box is square with an open top, and a baffle can be added later according to user needs. The inclined surface of the base plate is used to receive cat litter. A drive motor drives a transverse screw to rotate, which, with the cooperation of a limiting rod, drives a sliding plate to move linearly. The transverse screw is inclined, and its curvature is the same as that of the inclined surface of the base plate. A screening comb is fixed below the sliding plate. When the drive motor is started, it drives the screening comb to move obliquely upward, bringing the clumps formed by cat feces to the top of the base plate. The inclined surface of the base plate can prevent excessive cat litter from accumulating at the end of the moving screening plate. The multi-stage hydraulic rod can extend in multiple stages, with its main body lower than the highest point of the base plate. When fully retracted, the lifting mechanism... The highest point of the plate is flush with the base plate; the rotating seat connects the lifting plate and the multi-stage hydraulic rod, and provides rotational capability to the lifting plate; when the clump is brought to the top of the base plate, continued movement will push it onto the lifting plate, and the other side of the lifting plate is blocked by the partition to prevent the clump from falling; the multi-stage hydraulic rod is activated to push the lifting plate out, and when it moves above the partition, the lifting plate is blocked by the limiting block and deflects, pouring the clump into the collection compartment, completing one automatic litter cleaning cycle; the litter box of the present invention has an open top, allowing the cat to defecate comfortably, and the large litter spreading area reduces the possibility of litter reaching the inner wall, thus solving the problem of the existing litter box spherical design resulting in too small a volume, a small litter spreading area, and feces easily adhering to the inner wall of the spherical shape. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the structure of an automatic litter box according to the first embodiment of the present invention.

[0016] Figure 2 This is a top view of a litter box with automatic litter cleaning according to the first embodiment of the present invention.

[0017] Figure 3 This is a litter box with automatic litter cleaning according to the first embodiment of the present invention. Figure 2 A cross-sectional view of AA.

[0018] Figure 4 This is a litter box with automatic litter cleaning according to the first embodiment of the present invention. Figure 2 A cross-sectional view of BB.

[0019] Figure 5This is a schematic diagram of the structure of an automatic litter box according to the second embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the structure of an automatic litter box according to the third embodiment of the present invention.

[0021] Figure 7 This is a cross-sectional view of a litter box with automatic litter cleaning according to a third embodiment of the present invention.

[0022] Figure 8 This is a third embodiment of an automatic litter box for cleaning cat litter according to the present invention. Figure 7 A magnified view of detail C.

[0023] 101-Litter box, 102-Base plate, 103-Drive motor, 104-Horizontal sliding screw, 105-Limit rod, 106-Sliding plate, 107-Screwing comb, 108-Hydraulic rod, 109-Rotating seat, 110-Lifting plate, 111-Limit block, 112-Baffle, 113-Storage compartment, 114-Inclined surface, 115-Supporting plate, 116-Chamfer, 117-Torsion spring, 118-Limiting platform, 119-Connecting arm, 120-Baffle plate, 121-Storage box, 122-Pull ring, 201-Support leg, 202-Weighing device, 203-Infrared sensor, 301-Protrusion, 302-Slide rail, 303-Slide groove, 304-Screwing hole, 305-Guide groove, 306-Roller. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] For the first embodiment, please refer to... Figures 1-4 , Figure 1 This is a schematic diagram of the structure of an automatic litter box according to the first embodiment of the present invention; Figure 2 This is a top view of an automatically cleaning cat litter box according to the first embodiment of the present invention; Figure 3 This is a litter box with automatic litter cleaning according to the first embodiment of the present invention. Figure 2 Sectional view of AA; Figure 4 This is a litter box with automatic litter cleaning according to the first embodiment of the present invention. Figure 2 A cross-sectional view of BB.

[0026] This invention provides an automatic litter box 101 for cleaning cat litter: including a litter box 101, a base plate 102, a drive motor 103, a transverse screw 104, a limiting rod 105, a sliding plate 106, a screening comb 107, a multi-stage hydraulic rod 108, a rotating seat 109, a lifting plate 110, a limiting block 111, a partition 112, a storage compartment 113, a receiving plate 115, a torsion spring 117, a limiting platform 118, a connecting arm 119, a shielding plate 120, a storage box 121, and a pull ring 122. The base plate 102 has an inclined surface 114; the receiving plate 115 has a chamfer 116.

[0027] The aforementioned solution addresses the problems of the existing 101 litter box's spherical design, which results in a small volume, limited litter spread, and feces easily adhering to the inner wall of the sphere. Understandably, the aforementioned solution can automatically clean the litter and also provides a larger volume and space for the cat to defecate.

[0028] In this embodiment, the base plate 102 is fixed in the litter box 101; the drive motor 103 is fixed in the side wall of the litter box 101; the transverse screw 104 is fixed in the output end of the drive motor 103; the drive motor 103 and the transverse screw 104 are inclined, with the same curvature as the inclined surface 114 of the base plate 102; the limiting rod 105 is rotatably disposed in the side wall of the litter box 101 away from the transverse screw 104; the sliding plate 106 is threadedly connected to the transverse screw 104 and slidably connected to the limiting rod 105; the screening comb 107 is fixed below the sliding plate 106; the multi-stage... The hydraulic rod 108 is fixed in the litter box 101; the rotating seat 109 is rotatably mounted on the output end of the multi-stage hydraulic rod 108; the lifting plate 110 is mounted on the rotating seat 109; the limiting block 111 is fixed on the side wall of the litter box 101; the partition 112 is fixed in the litter box 101; the storage compartment 113 is located between the partition 112 and the litter box 101; the litter box 101 is square with an open top, and a baffle can be installed later according to the user's specific needs; the inclined surface 114 of the bottom plate 102 is used to receive and place cat litter, and the drive motor 103 is used to drive the transverse screw 104 to rotate. With the cooperation of the limiting rod 105, the sliding plate 106 is driven to move linearly. The transverse screw 104 is inclined, and its arc is the same as the arc of the inclined surface 114 of the base plate 102. The screening comb 107 is fixed below the sliding plate 106. When the drive motor 103 is started, it drives the screening comb 107 to move obliquely upward, bringing the clumps formed by cat feces to the top of the base plate 102. The inclined surface 114 of the base plate 102 can prevent excessive cat litter from accumulating at the end of the screening plate's movement. The multi-stage hydraulic rod 108 can extend in multiple stages, and its main body is lower than the highest point of the base plate 102. When fully retracted, the lifting plate 110... The rotating seat 109 is flush with the highest point of the base plate 102. It connects the lifting plate 110 and the multi-stage hydraulic rod 108, providing rotational capability to the lifting plate 110. Once the clump is brought to the top of the base plate 102, continued movement will push it onto the lifting plate 110. The other side of the lifting plate 110 is blocked by the partition 112, preventing the clump from falling. The multi-stage hydraulic rod 108 is activated, pushing the lifting plate 110 out. When it moves above the partition 112, the lifting plate 110 is blocked by the limiting block 111, causing it to deflect and pour the clump into the collection compartment 113, completing one automatic litter cleaning cycle.The litter box 101 of this invention has an open top, allowing cats to defecate comfortably. Furthermore, the large litter spreading area reduces the possibility of litter adhering to the inner wall, thus solving the problems of existing litter boxes 101 with their small volume, limited litter spreading area, and easy adhesion of feces to the inner wall due to a spherical design.

[0029] The receiving plate 115 is fixed below the screening comb 107; the chamfer 116 of the receiving plate 115 is used to facilitate the scooping up of clumps, making it easier for them to move with the screening comb 107.

[0030] Secondly, the torsion spring 117 is fixedly connected to the rotating seat 109 and to the output end of the multi-stage hydraulic rod 108; the limiting platform 118 is fixed to the output end of the multi-stage hydraulic rod 108; the torsion spring 117 has a tendency to make the lifting plate 110 rotate away from the partition 112, so that when the lifting plate 110 is blocked and deflected by the limiting block 111, the torsion spring 117 can reset it; the limiting platform 118 is used to limit the maximum rotation angle of the lifting plate 110 to avoid excessive reset.

[0031] Furthermore, the connecting arm 119 is fixed to the lifting plate 110; the shielding plate 120 is fixed to the connecting arm 119; the connecting arm 119 is used to connect the shielding plate 120 and drive it to move with the lifting plate 110. When the lifting plate 110 moves to the lowest end, the shielding plate 120 blocks the storage compartment 113, that is, the space between the partition 112 and the litter box 101, sealing the accumulated feces and reducing odor emission.

[0032] Finally, the storage box 121 is slidably disposed in the litter box 101; the pull ring 122 is fixed to the side of the storage box 121; the slidable storage box 121 allows for easy individual removal of clumps for cleaning; the pull ring 122 is used to easily pull out the storage box 121.

[0033] During use, the litter box 101 is square with an open top, and a baffle can be added later according to the user's specific needs; the inclined surface 114 of the base plate 102 is used to receive and place cat litter, and the drive motor 103 is used to drive the transverse screw 104 to rotate. With the cooperation of the limiting rod 105, the sliding plate 106 is driven to move linearly. The transverse screw 104 is inclined, and its arc is the same as the arc of the inclined surface 114 of the base plate 102. The filtering comb 107 is fixed below the sliding plate 106. When the drive motor 103 is started, it drives the filtering comb 107 to move obliquely upward, bringing the clumps formed by cat feces to the top of the base plate 102; the base plate 102... The inclined surface 114 of 02 can prevent excessive cat litter from accumulating at the end of the moving screen plate; the multi-stage hydraulic rod 108 can extend in multiple stages, its main body being lower than the highest point of the base plate 102, and when fully retracted, the lifting plate 110 is flush with the highest point of the base plate 102; the rotating seat 109 connects the lifting plate 110 and the multi-stage hydraulic rod 108, and provides rotational capability to the lifting plate 110; when the clumping is brought to the top of the base plate 102, continued movement will push it onto the lifting plate 110, the other side of the lifting plate 110 is blocked by the partition 112, which can prevent the clumping from falling; the multi-stage hydraulic rod 108 is activated to push the lifting plate 110 out, when After moving above the partition 112, the lifting plate 110 is blocked by the limiting block 111, causing it to deflect and pour the clumps into the collection bin 113, completing one automatic litter cleaning cycle. The chamfer 116 of the receiving plate 115 is used to facilitate scooping up the clumps, making it easier for them to move with the sorting comb 107. The torsion spring 117 has a tendency to rotate the lifting plate 110 away from the partition 112, so that when the lifting plate 110 is blocked and deflected by the limiting block 111, the torsion spring 117 can reset it. The limiting platform 118 is used to limit the maximum rotation angle of the lifting plate 110 to avoid over-resetting. The connecting arm 119 is used to connect the shielding plate 1. 20, which moves along with the lifting plate 110. When the lifting plate 110 moves to the lowest point, the cover plate 120 covers the storage compartment 113, that is, the space between the partition 112 and the litter box 101, sealing the accumulated feces clumps and reducing odor emission. The storage box 121 is slidably designed to easily pull out the clumps for cleaning. The pull ring 122 is used to easily pull out the storage box 121. The litter box 101 of the present invention is open at the top, allowing the cat to defecate comfortably. The litter spread area is large, which reduces the possibility of feces sticking to the inner wall. This solves the problem that the existing litter box 101 has a small volume due to its spherical design, a small litter spread area, and feces easily adhering to the inner wall of the spherical shape.

[0034] For the second embodiment, please refer to... Figure 5 , Figure 5 This is a schematic diagram of the structure of an automatic litter box according to the second embodiment of the present invention.

[0035] Based on the first embodiment, the cat litter box 101 of the present invention for automatically cleaning cat litter also includes a support leg 201, a weighing device 202 and a plurality of infrared sensors 203.

[0036] The weighing device 202 is located below the litter box 101; the support leg 201 is fixed below the weighing device 202; the weighing device 202 is used to measure and sense whether there is a cat in the litter box 101, and then calculate data such as the amount of feces, while also preventing the cat from being harmed by automatically cleaning itself when it is in the litter box 101; the support leg 201 is used to install and support the weighing device 202.

[0037] Multiple infrared sensors 203 are arranged around the litter box 101; the infrared sensors 203 are used to assist the weighing device 202 in detecting whether there is a cat and avoid accidental injury.

[0038] Third embodiment, please refer to Figures 6-8 , Figure 6 This is a schematic diagram of the structure of an automatic litter box according to the third embodiment of the present invention; Figure 7 This is a cross-sectional view of a cat litter box with automatic litter cleaning according to a third embodiment of the present invention; Figure 8 This is a third embodiment of an automatic litter box for cleaning cat litter according to the present invention. Figure 7 A magnified view of detail C.

[0039] Based on the second embodiment, the litter box 101 of the present invention for automatically cleaning cat litter also includes a plurality of protrusions 301, a slide rail 302 and two rollers 306, the litter box 101 having two sliding grooves 303; the lifting plate 110 having a plurality of screening holes 304 and a guide groove 305.

[0040] The protrusions 301 are staggered in the two grooves 303 of the litter box 101; the slide rail 302 is fixedly connected to the lifting plate 110 and slidably connected to the rotating seat 109; the slide rail 302 allows the lifting block to slide a certain position relative to the rotating seat 109, and its sliding direction is perpendicular to the direction of the transverse screw 104; the staggered design of the protrusions 301 allows the lifting plate 110 to slide left and right when it moves up and down, and the lifting plate 110 is provided with a screening hole 304, which is connected to the guide channel 305. When it slides left and right, it can play a role in screening the cat litter again. After the cat litter enters the screening hole 304, it returns to the bottom plate 102 through the guide channel 305, which can improve the utilization rate of the cat litter.

[0041] The two rollers 306 are rotatably disposed on both sides of the lifting plate 110 and located in the two grooves 303 of the litter box 101; the rollers 306 enable the lifting plate 110 to move more smoothly left and right and avoid getting stuck during the lifting process.

[0042] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A litter box with automatic litter cleaning function, characterized in that, The device includes a litter box, a base plate, a drive motor, a transverse screw, a limiting rod, a sliding plate, a screening comb, a multi-stage hydraulic rod, a rotating seat, a lifting plate, a limiting block, a partition, and a storage compartment. The base plate has an inclined surface and is fixed inside the litter box. The drive motor is fixed in the side wall of the litter box. The transverse screw is fixed to the output end of the drive motor. The drive motor and the transverse screw are inclined, with the same curvature as the inclined surface of the base plate. The limiting rod is rotatably disposed inside the side wall of the litter box away from the transverse screw. The sliding plate is threadedly connected to the transverse screw and slidably connected to the limiting rod. The screening comb is fixed below the sliding plate. The multi-stage hydraulic rod is fixed inside the litter box. The rotating seat is rotatably disposed at the output end of the multi-stage hydraulic rod. The lifting plate is disposed on the rotating seat. The limiting block is fixed to the side wall of the litter box; the partition is fixed in the litter box; the storage compartment is located between the partition and the litter box. It also includes multiple protrusions, a slide rail, and two rollers. The litter box has two grooves. The lifting plate has multiple screening holes and a guide channel. The protrusions are staggered in the two grooves of the litter box. The slide rail is fixedly connected to the lifting plate and slidably connected to the rotating seat. The slide rail allows the lifting plate to slide relative to the rotating seat, and its sliding direction is perpendicular to the direction of the transverse screw. The staggered design of the protrusions allows the lifting plate to slide left and right when it moves up and down. The lifting plate is provided with screening holes, which are connected to the guide channel. When it slides left and right, it plays a role in screening the litter again. After the litter enters the screening hole, it returns to the base plate through the guide channel, which can improve the utilization rate of the litter. The two rollers are rotatably arranged on both sides of the lifting plate and located in the two grooves of the litter box.

2. The litter box with automatic litter cleaning as described in claim 1, characterized in that, The litter box for automatically cleaning cat litter also includes a receiving plate with chamfered edges; the receiving plate is fixed below the filter comb.

3. The litter box with automatic litter cleaning as described in claim 2, characterized in that, The automatic litter box also includes a torsion spring and a limiting platform. The torsion spring is fixedly connected to the rotating seat and to the output end of the multi-stage hydraulic rod. The limiting platform is fixed to the output end of the multi-stage hydraulic rod.

4. The automatic litter box for cleaning cat litter as described in claim 3, characterized in that, The automatic litter box also includes a connecting arm and a baffle plate, wherein the connecting arm is fixed to the lifting plate and the baffle plate is fixed to the connecting arm.

5. The litter box with automatic litter cleaning as described in claim 4, characterized in that, The automatic litter box also includes a storage box and a pull ring. The storage box is slidably disposed in the litter box, and the pull ring is fixed to the side of the storage box.

6. The litter box with automatic litter cleaning as described in claim 5, characterized in that, The litter box with automatic litter cleaning also includes support legs and a weighing device, with the weighing device located below the litter box and the support legs fixed below the weighing device.

7. The litter box with automatic litter cleaning as described in claim 6, characterized in that, The litter box with automatic litter cleaning also includes multiple infrared sensors, which are arranged around the perimeter of the litter box.

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