Cat toilet

Abstract

The utility model discloses a cat toilet, which comprises a roller, a toilet seat, a toilet seat, a toilet seat, a toilet seat, a toilet seat, a toilet seat, a toilet seat, a toilet seat and a toilet seat, and is characterized in that the side wall of the roller is provided with a rack extending along the circumferential direction; a driving wheel meshed with the rack and four idler wheels are installed below the roller, the idler wheels abut against the side wall of the roller and can rotate along with the roller, two idler wheels are oppositely arranged near the first end of the roller, and the other two idler wheels are oppositely arranged near the second end of the roller. A driving device used for driving the driving wheel to rotate is further arranged. And the roller is stressed uniformly during rotation, rotates stably and is low in noise.

Description

Technical Field

[0001] The utility model belongs to the technical field of pet products, and in particular relates to a cat toilet. Background Art

[0002] The drum of the cat toilet is paved with cat litter and equipped with a screen. After the cat defecates on the cat litter, the cat litter will combine with the cat excrement to form clumps, and then the cat litter and the clumps will be separated by the rotation of the drum and the screen, and then the clumps will be discharged into the feces collection box.

[0003] However, the structure of the existing cat toilet causes uneven force on the drum, unstable rotation and loud noise. Summary of the invention

[0004] The utility model aims to provide a cat toilet, which solves the problem that the drum of the cat toilet rotates unsteadily and makes a lot of noise.

[0005] The technical solution is as follows:

[0006] The cat toilet of the utility model comprises:

[0007] A drum, wherein a rack extending in a circumferential direction is provided on a side wall of the drum and the rack is located in the middle of the drum;

[0008] A driving wheel meshing with the rack and four rollers are installed below the drum, the rollers abut against the side wall of the drum and can rotate with the drum, wherein two rollers are relatively arranged near the first end of the drum, and the other two rollers are relatively arranged near the second end of the drum;

[0009] A driving device is also provided for driving the driving wheel to rotate.

[0010] In one of the embodiments, a support rod is further provided, wherein the support rod is connected to the second end of the drum to support the drum.

[0011] In one embodiment, an arc-shaped groove is provided on the outer wall of the second end of the drum, and a rotating wheel is provided at the end of the support rod, and the rotating wheel is embedded in the arc-shaped groove.

[0012] In one of the embodiments, the second end of the drum is provided with a drum shaft extending to the outside of the drum, and one end of the support rod is a semicircular support platform, and the drum shaft is placed on the support platform.

[0013] In one embodiment, a device box is installed below the drum, the roller is installed on the top wall of the device box, the driving device and the driving wheel are arranged in the device box, a slot is opened on the top wall of the device box, and at least part of the driving wheel extends out of the slot.

[0014] In one embodiment, the top wall of the device box is recessed inward to form an arcuate wall and a horizontal wall, the horizontal wall surrounds the periphery of the arcuate wall, and the slot extends from the horizontal wall to the arcuate wall.

[0015] In one embodiment, the four rollers are respectively arranged at four corners of the arc-shaped wall.

[0016] In one embodiment, a roller arm is provided between the roller and the device box, the roller arm is in the shape of an elongated strip, the first end of the roller arm is connected to the top wall of the device box, the second end of the roller arm extends obliquely upward, and the roller is mounted on the second end of the roller arm.

[0017] In one of the embodiments, the second end of the roller arm is provided with an arcuate groove with one end open, the axis of the arcuate groove is parallel to the axis of the roller, and the roller is installed in the arcuate groove.

[0018] In one of the embodiments, a weighing element is provided at the bottom of the device box.

[0019] In one of the embodiments, grooves are provided at four corners of the bottom wall of the equipment box, and the weighing elements are installed in the grooves.

[0020] In one embodiment, the driving device includes a motor and a gearbox, and the driving wheel is mounted on an output shaft of the gearbox.

[0021] The technical solution provided by the utility model has the following advantages and effects:

[0022] By arranging a rack extending in the circumferential direction on the outer wall in the middle of the drum, the rack and the driving wheel are meshed in the middle of the drum, so that a rotational force can be applied to the middle of the drum, and then two of the four rollers are relatively arranged near the first end of the drum, and the other two are relatively arranged near the second end of the drum, so that the drum is evenly stressed, rotates smoothly, and the noise when the drum rotates is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the assembly of the drum and the equipment box of the cat toilet embodiment of the utility model;

[0024] Figure 2 is a three-dimensional diagram of the device box in this embodiment;

[0025] Figure 3 is a three-dimensional diagram of the roller arm in this embodiment;

[0026] Figure 4 is a three-dimensional diagram of the support rod in this embodiment;

[0027] Figure 5 is a three-dimensional diagram of a drum in a second embodiment of a cat litter box;

[0028] Figure 6 It is a three-dimensional view of the support rod in the second embodiment of the cat litter box.

[0029] Description of reference numerals:

[0030] 10. roller, 11. first end, 12. second end, 13. side wall, 14. discharge port, 15. rack, 17. arc-shaped groove,

[0031] 20. Equipment box, 21. Driving wheel, 22. Through hole, 23. Arc wall, 24. Horizontal wall, 25. Slot hole, 26. Roller, 27. Roller arm, 271. Bow slot, 272. First opening, 273. Second opening, 28. Support rod, 281. Boss, 282. Rotating wheel, 283. Support platform. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0033] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0034] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] It should be noted that, in this document, “fixed to” or “connected to” may mean directly fixing or connecting to an element, or indirectly fixing or connecting to an element.

[0036] The existing cat toilet (also called cat litter box) mainly includes a top cover, a drum, a base and a feces collection box. The base is fixed with rollers and a support rod that support the drum, and there are supporting feet under the base. The drum is paved with cat litter and a screen is provided. After the cat defecates on the cat litter, the cat litter will combine with the cat excrement to form a clumping, and then the cat litter and the clumping will be separated by the rotation of the drum and the screen, and then the clumping will be discharged into the feces collection box.

[0037] The cat toilet drives the drum to rotate by meshing the gear with the rack at the end of the drum. However, the drum is generally large in size, and the force driving the drum to rotate acts on one end of the drum, which will cause uneven force on the drum of the cat toilet, unstable rotation of the drum, and loud noise.

[0038] In view of the above problems, the utility model provides a rack extending in the circumferential direction on the outer wall in the middle of the drum, and installs a driving wheel and four rollers under the drum. The driving wheel is meshed with the rack, and the driving wheel is rotated by the driving device to drive the drum to rotate; the roller abuts against the side wall of the drum, and can support the drum. When the drum rotates, the roller can also rotate with the drum. Since the rack and the driving wheel are meshed in the middle of the drum, a rotational force is applied to the middle of the drum, and two of the four rollers are relatively arranged near the first end of the drum, and the other two are relatively arranged near the second end of the drum, so that the drum is evenly stressed and rotates smoothly, reducing the noise when the drum rotates.

[0039] Figure 1 The present invention is a stereoscopic diagram of the assembled drum and equipment box in the cat toilet embodiment of the utility model. The drum 10 is cylindrical, and the two ends perpendicular to the axis of the drum 10 are the first end 11 and the second end 12. The first end 11 and the second end 12 are opposite to each other. The first end 11 is provided with an entrance for cats to enter and exit the drum 10, and the second end 12 is a closed end wall. The side wall 13 of the drum 10 surrounds the axis of the drum 10, and the side wall 13 is provided with a discharge port 14. A rack 15 is provided on the side wall 13 in the middle of the drum 10, and the rack 15 extends circumferentially on the side wall 13 of the drum 10. The drum 10 is driven to rotate by a gear meshing with the rack. A sand screening plate is provided inside the drum 10, and the sand screening plate and the inner wall of the drum are arranged to form a sand collecting space. When the drum 10 rotates, the cat litter and feces mixture in the drum 10 rotates accordingly. The sand screening plate is provided with sand screening holes. The size of cat litter is smaller than that of the sand screening holes, while the size of the sand-feces mixture (i.e., agglomerates) is usually larger than that of the sand screening holes. When the discharge port 14 is located near the bottom of the drum 10, the agglomerates on the sand screening plate will fall out of the discharge port. It should be noted that the middle of the drum 10 refers to the rack 15 between the first end 11 and the second end 12 of the drum 10, and does not limit the distance between the rack 15 and the first end 11 and the second end 12 of the drum 10 to be equal. The specific position of the rack 15 can be set accordingly according to the mass of the first end 11 and the second end 12 of the drum 10. In addition, the length of the rack 15 extending in the circumferential direction is not limited, as long as the stroke of the driving wheel 21 meshing with the rack 15 on the rack 15 can make the discharge port 14 rotate to the bottom of the drum 10.

[0040] Figure 2: is a three-dimensional diagram of the device box in this embodiment. The device box 20 is located below the drum 10. The device box 20 is a square box. The center of the device box 20 is dug with a through hole 22 that penetrates the upper and lower ends of the device box 20. The shape of the through hole 22 is not limited, and it can be square, circular, oval, etc. When the drum 10 rotates to the bottom end of the drum 10 where the discharge port 14 is located, when the agglomerate falls out of the discharge port, it passes through the through hole 22 and falls into the feces collection box below the device box 20. The top wall of the device box 20 is recessed inward to form an arc wall 23 to match the shape of the side wall 13 of the drum 10, and the periphery of the arc wall 23 is surrounded by a horizontal wall 24. A slot 25 is provided on the top wall of the device box 20, a part of the slot 25 is provided on the horizontal wall 24, and another part is provided on the arc wall 23, that is, extending from the horizontal wall 24 to the arc wall 23. The driving wheel 21 meshing with the rack 15 of the drum 10 is installed in the device box 20, and a part of the driving wheel 21 extends out of the slot 25. A driving device for driving the driving wheel 21 to rotate is installed in the device box 20. In this embodiment, a motor and a gearbox are installed in the device box, and the driving wheel 21 is installed on the output shaft of the gearbox. The motor drives the gearbox, and the gearbox drives the driving wheel 21 to rotate, that is, the motor and the gearbox constitute the above-mentioned driving device. Among them, the specific position of the slot 25 is adapted to the position of the rack 15 of the drum 10, so that the driving wheel 21 extending from the slot 25 can mesh with the rack 15 of the drum 10.

[0041] In order to support the drum 10 and facilitate the rotation of the drum 10, four rollers 26 are also installed on the device box 20, which are arranged at the four corners of the arc-shaped wall 23. That is, a roller 26 is respectively arranged on the left and right sides of the first end 11 of the drum 10, and a roller 26 is respectively arranged on the left and right sides of the second end 12 of the drum 10 (the left and right sides are based on standing at the entrance of the drum and looking at the second end of the drum). By arranging four rollers 26 to support the drum 10, and arranging the rollers 26 in the arc-shaped wall 23, compared with the conventional arrangement of the rollers 26 at the top of the base, the center of gravity of the drum 10 is lower, and the rollers 26 have a better supporting effect on the drum 10.

[0042] The device box in this embodiment can be placed on the feces collection box or a foldable support leg can be set on the device box, and then the feces collection box can be placed under the device box; the device box can also be installed on the base. Weighing elements (such as weighing sensors) are also installed at the four corners of the bottom of the device box. Specifically, grooves are set at the four corners of the bottom wall of the device box, and the weighing elements are installed in the grooves. Compared with other installation methods, the weighing elements are set in the grooves, the weighing is more accurate, the weighing elements are also safer and not easy to be damaged.

[0043] The current cat toilet has rollers symmetrically arranged on the top of the base that rotate with the drum. The rollers are fixed in the grooves of the base by screws. In order to stably support the drum, the four rollers on the base are more stable when they are far apart in the horizontal direction. Therefore, the width of the base is generally equal to or even larger than the diameter of the drum, resulting in a large volume of the entire base. In addition, when the drum rotates to sieve cat litter and excrement, cat litter may fall into the gap between the base and the drum, which may cause the litter to get stuck and affect the normal operation of the drum. Therefore, the current setting method of the rollers in the cat toilet is prone to failure and cannot stably support the rotation of the drum.

[0044] In this embodiment, the roller 26 is connected to the device box 20 through the roller arm 27 (the roller in this embodiment may also be referred to as a long-arm roller). The roller arm 27 is in the shape of a long strip, and the first end of the roller arm 27 is connected to the top wall of the device box 20, and the specific connection method is not limited; the second end of the roller arm 27 extends obliquely upward to the left or right side of the device box 20 (based on the second end of the drum when standing at the entrance of the drum), and the roller 26 is installed at the end of the second end of the roller arm 27. By setting the roller arm 27, the roller 26 extends obliquely upward to the device box 20, the horizontal distance between the contact point of the roller 26 and the drum 10 and the central axis of the drum 10 is larger, and the roller 26 forms a wider support range for the drum 10 on the horizontal plane, and the support effect is better.

[0045] In addition, during use of the existing cat litter box, cat litter is easy to enter the groove of the fixed roller, resulting in a failure in the rotation of the roller and making it difficult to clean the cat litter in the groove. Figure 3 2 is a three-dimensional diagram of the roller arm of this embodiment. An arcuate groove 271 is provided at the second end of the roller arm 27, and two openings are provided on the arcuate groove 271, one of which is a first opening 272 on the side wall, and the first opening 272 is flush with the top surface of the roller arm 27, and the other is a second opening 273 provided at one end of the arcuate groove 271 (perpendicular to the axis of the arcuate groove). After the roller arm 27 is connected to the device box 20, the axis of the arcuate groove 271 is parallel to the axis of the drum 10, and the other end of the arcuate groove 271 opposite to the second opening 273 is closed, and the roller 26 is screwed to the other end by a thread, and the roller 26 slightly protrudes from the top surface of the roller arm 27. Since the roller 26 raises the height of the contact point with the drum 10 through the roller arm 27, cat litter rarely falls into the arcuate groove 271 to affect the rotation of the roller; and a second opening 273 is provided at one end of the arcuate groove 271, and even if cat litter occasionally falls into the arcuate groove 271, it will slide out from the second opening 273 during the rotation of the roller 26. Therefore, the long-arm roller in this embodiment can avoid the situation of sand jam, increase the service life of the roller, improve the stability of the drum, and facilitate cleaning.

[0046] In order to make the drum rotate more smoothly, in some embodiments, a support rod 28 is further provided. Figure 4 The first end of the support rod 28 is connected to the device box 20, and the second end of the support rod 28 is a semicircular support platform 283. The roller shaft extending outward from the roller 10 is placed on the support platform 283, so that the support rod 28 plays a role in supporting the roller 10.

[0047] Compared with the existing drive components distributed in multiple parts such as the bottom shell and the support base, integrating the drive components into the device box makes it easier to clean other parts and can be directly washed with water. The device box itself is also easy to wipe and clean. There is no limit to the specific connection method between the long-arm roller and the bracket rod and the device box. It can be fixed, detachable or foldable. In addition, when the drive component fails, the device box can be directly packed and sent back for repair, which greatly improves the convenience of cat toilet repair and significantly reduces the repair cost.

[0048] Figure 5 It is a three-dimensional view of the drum in the second embodiment of the cat litter box. Figure 6 The figure is a three-dimensional diagram of the support rod in the second embodiment of the cat toilet. An arc-shaped groove 17 is provided on the second end 12 of the drum 10. Accordingly, a boss 281 extending toward the drum 10 is provided on the second end of the support rod 28. A rotating wheel 282 is installed at the end of the boss 281. The rotating wheel 282 is embedded in the arc-shaped groove 17, which supports the drum 10 without restricting the rotation of the drum 10. The structure changes the existing method of using a higher support rod to support the central axis of the drum, and can greatly reduce the height of the support rod, so that the drum rotates more smoothly.

[0049] In summary, by setting a circumferentially extending rack on the outer wall in the middle of the drum, the rack and the driving wheel are meshed in the middle of the drum, and a rotational force can be applied to the middle of the drum. Then, two of the four rollers are relatively arranged near the first end of the drum, and the other two are relatively arranged near the second end of the drum, so that the drum is evenly stressed and rotates smoothly, reducing the noise when the drum rotates. In addition, the use of long-arm rollers forms a wider support range for the drum, which not only improves the support effect and solves the problem of sand jamming, but also greatly facilitates the disassembly, assembly and cleaning of the cat toilet.

[0050] The above embodiments are not exhaustive enumerations based on the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A cat toilet, characterized in that: include: A drum, wherein a rack extending in a circumferential direction is provided on a side wall of the drum and the rack is located in the middle of the drum; A driving wheel meshing with the rack and four rollers are installed below the drum, the rollers abut against the side wall of the drum and can rotate with the drum, wherein two rollers are relatively arranged near the first end of the drum, and the other two rollers are relatively arranged near the second end of the drum; A driving device is also provided for driving the driving wheel to rotate.

2. The cat litter box according to claim 1, characterized in that: A support rod is also provided, and the support rod is connected to the second end of the drum to support the drum.

3. The cat litter box according to claim 2, characterized in that: An arc-shaped groove is arranged on the outer wall of the second end of the drum, and a rotating wheel is arranged at the end of the bracket rod, and the rotating wheel is embedded in the arc-shaped groove.

4. The cat litter box according to claim 2, characterized in that: The second end of the drum is provided with a drum shaft extending to the outside of the drum, and one end of the bracket rod is a semicircular support platform, and the drum shaft is placed on the support platform.

5. The cat litter box according to claim 1, characterized in that: A device box is installed below the drum, the roller is installed on the top wall of the device box, the driving device and the driving wheel are arranged in the device box, a slot is opened on the top wall of the device box, and at least part of the driving wheel extends out of the slot.

6. The cat litter box according to claim 5, characterized in that: The top wall of the equipment box is recessed inward to form an arc-shaped wall and a horizontal wall, the horizontal wall surrounds the periphery of the arc-shaped wall, and the slot extends from the horizontal wall to the arc-shaped wall.

7. The cat litter box according to claim 6, characterized in that: The four rollers are respectively arranged at four corners of the arc-shaped wall.

8. The cat litter box according to claim 5, characterized in that: A roller arm is provided between the roller and the device box. The roller arm is in the shape of an elongated strip. A first end of the roller arm is connected to the top wall of the device box. A second end of the roller arm extends obliquely upward. The roller is mounted on the second end of the roller arm.

9. The cat litter box according to claim 8, characterized in that: An arcuate groove with one end open is provided at the second end of the roller arm, the axis of the arcuate groove is parallel to the axis of the roller, and the roller is installed in the arcuate groove.

10. The cat litter box according to claim 5, characterized in that: A weighing element is arranged at the bottom of the equipment box.

11. The cat litter box according to claim 10, characterized in that: The four corners of the bottom wall of the equipment box are provided with grooves, and the weighing elements are installed in the grooves.

12. The cat litter box according to any one of claims 1 to 11, characterized in that: The driving device comprises a motor and a gearbox, and the driving wheel is mounted on the output shaft of the gearbox.

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