Cat litter basin

Abstract

The utility model discloses a cat litter basin, belongs to the field of cat litter basins, solves the problem that an inner cylinder in an existing cat litter basin is complex and tedious to mount and dismount, and adopts the technical scheme that the cat litter basin comprises a shell, a bracket fixed in the shell and the inner cylinder placed in the bracket, the shell is provided with an installation hole for the inner cylinder to enter and exit, the support is provided with a driving mechanism for driving the inner cylinder to rotate, the support is provided with a guide assembly for guiding the inner cylinder to enter and exit the installation hole, and the guide assembly guides the inner cylinder to be pulled out of the shell along the installation hole or installed in the shell so that the inner cylinder can be in transmission connection with the driving mechanism. According to the utility model, the inner cylinder can be directly drawn out or stretched in along the mounting hole of the shell, the inner cylinder can be mounted and dismounted only by one step, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model discloses a cat litter box, belonging to the technical field of cat litter boxes. Background Art

[0002] As more and more people like to keep pet cats, they need to clean their feces frequently during the breeding process. However, pet cat owners do not have so much time to clean the litter box, and may even feel annoyed about cleaning the litter box. Therefore, automatic cat litter boxes are widely loved by customers.

[0003] For example, CN217241971U discloses an inner bin of a cat toilet that is easy to disassemble and assemble, including a first bin body and a second bin body. The first bin body is provided with a plurality of positioning columns, the second bin body is provided with a plurality of positioning sleeves, the first bin body is provided with a plurality of buckles, and the second bin body is provided with a plurality of buckled parts, the buckled parts cooperate with the corresponding buckles. When installing, it is only necessary to align the first bin body with the second bin body, and to match the buckles on the first bin body with the buckled parts on the second bin body. When disassembling, the buckles on the first bin body can be separated from the buckled parts of the second bin body. The structure is simple and reasonable, and disassembly and assembly are very convenient, which is conducive to later cleaning and maintenance operations.

[0004] In the above patent, the inner bin is formed by splicing a first bin body and a second bin body. During the installation and disassembly process, the buckle and the buckled parts will undergo elastic deformation. After long-term use, the buckle and the buckled parts are prone to breakage, which makes it impossible to completely splice the first bin body and the second bin body. In addition, the inner bin is exposed to the outside world as a whole, which is prone to collision during use. At the same time, the inner bin is also prone to detach from the bracket, which causes damage to the inner bin. In addition, cat litter boxes in the prior art also have outer shells. In this type of cat litter box, the inner cylinder is inside the outer shell. When the inner cylinder needs to be cleaned, the outer shell must be removed first before the inner cylinder can be taken out. The operation is relatively complicated, which affects the cleaning efficiency. Utility Model Content

[0005] The utility model aims to solve the problem that the installation and disassembly of the inner cylinder in the existing cat litter box are relatively complicated and cumbersome. For this purpose, a cat litter box is provided, in which the inner cylinder can be directly pulled out or inserted along the installation hole of the outer shell, and the installation and disassembly of the inner cylinder only requires one step, and the operation is simple and convenient.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A cat litter box, comprising a housing, a bracket fixed inside the housing, and an inner cylinder placed on the bracket. The housing is provided with an installation hole for the inner cylinder to enter and exit. The bracket is provided with a driving mechanism for driving the inner cylinder to rotate. A guiding component for guiding the inner cylinder to enter and exit the installation hole is arranged on the bracket. The guiding component guides the inner cylinder to be pulled out of the housing along the installation hole or installed into the housing so that the inner cylinder is in transmission connection with the driving mechanism.

[0008] The beneficial effects of adopting the utility model are as follows:

[0009] In the utility model, the housing is provided with an installation hole, and the bracket is provided with a guiding component. Under the action of the guiding component, the inner cylinder can be directly pulled out of the housing along the installation hole or installed into the housing along the installation hole. During the installation and disassembly of the inner cylinder, there is no need to disassemble the housing, and it can be directly pulled out or inserted along the installation hole, enabling the installation and disassembly of the inner cylinder to be completed in one step, thereby simplifying the operation of the inner cylinder, facilitating the user to clean the inner cylinder, and helping to improve the cleaning efficiency of the inner cylinder.

[0010] Preferably, a ring groove is arranged on the outer peripheral side of the inner cylinder. The guiding component extends into the ring groove and is in sliding fit with the ring groove to realize the installation of the inner cylinder and the housing. By adopting the foregoing technical solution, the cooperation between the guiding component and the ring groove can ensure the accurate positioning of the inner cylinder and the bracket, effectively prevent the inner cylinder from shifting and misaligning during rotation, and make the rotation of the inner cylinder more stable; in addition, the cooperation between the guiding component and the ring groove can enable the user to clearly perceive that the inner cylinder and the bracket are already installed in place, making the installation of the inner cylinder more convenient and simple, and conducive to improving the user experience.

[0011] Preferably, the guiding component comprises a mounting seat and a ball. The mounting seat is internally provided with a receiving cavity for receiving the ball. The top of the mounting seat is provided with a through hole communicating with the receiving cavity. The diameter of the through hole is smaller than the diameter of the ball. Part of the ball protrudes from the through hole and is in sliding fit with the ring groove. By adopting the foregoing technical solution, the ball is rotatably installed in the mounting seat, so that a rolling friction is formed between the ball and the outer peripheral side of the inner cylinder, thereby reducing the resistance between the inner cylinder and the guiding component, making the installation, disassembly, and rotation of the inner cylinder smoother, avoiding the possibility of the inner cylinder being stuck, and being conducive to improving the installation and disassembly efficiency of the inner cylinder; in addition, a rolling friction is formed between the ball and the inner cylinder, which can significantly reduce the wear between the guiding component and the inner cylinder, is conducive to improving the service life of the inner cylinder and the guiding component, and can also reduce the maintenance cost; secondly, the cooperation between the ball and the mounting seat can enable the ball to rotate in any direction, and thus can simultaneously guide the axial movement and circumferential rotation of the inner cylinder.

[0012] Preferably, the bracket is provided with a plurality of convex ribs, and positioning grooves for positioning the mounting seat are formed between the convex ribs. With the foregoing technical solution, the positioning grooves formed by the convex ribs can accurately position the mounting seat, making the installation of the mounting seat simpler and more convenient; in addition, the convex ribs can also limit the mounting seat, reducing the possibility of the mounting seat shaking or moving, which is beneficial to improving the stability of the guiding assembly.

[0013] Preferably, the bracket is provided with a mounting groove, the convex ribs are arranged in the mounting groove, and the guiding assembly is positioned in the mounting groove through the convex ribs and partially protrudes from the surface of the bracket. With the foregoing technical solution, the gap between the inner cylinder and the bracket can be reduced, making the assembly of the inner cylinder and the bracket more compact, and at the same time, the utilization rate of the internal space of the outer shell can also be improved, thereby reducing the volume of the outer shell and making the whole cat litter box more compact and portable.

[0014] Preferably, a U-shaped groove is provided on the upper side of the bracket, the inner cylinder is placed in the U-shaped groove, and at least two guiding assemblies are provided in the U-shaped groove, and two of the guiding assemblies are symmetrically distributed on both sides of the inner cylinder. With the foregoing technical solution, the positioning ability of the inner cylinder can be improved through the U-shaped groove, thereby effectively preventing the inner cylinder from shaking and displacing in the horizontal direction, and further improving the positioning stability of the inner cylinder; in addition, the two guiding assemblies are symmetrically distributed on both sides of the inner cylinder, making the force on the inner cylinder more balanced and reducing the possibility of the inner cylinder detaching from the U-shaped groove.

[0015] Preferably, two annular grooves are provided on the outer peripheral side of the inner cylinder, the two annular grooves are respectively close to both ends of the inner cylinder, 4 guiding assemblies are provided in the U-shaped groove, and the depths of the two annular grooves are different, and each annular groove is slidably fitted with two guiding assemblies. With the foregoing technical solution, each annular groove is fitted with two guiding assemblies, which can enhance the cooperation stability between the guiding assembly and the annular groove and make the rotation of the inner cylinder more stable; in addition, the two annular grooves are respectively close to both ends of the inner cylinder, so that the external force received by the inner cylinder is more dispersed, the phenomenon of stress concentration can be reduced, and the positioning of the inner cylinder is more stable; secondly, the depth of one of the two annular grooves is larger and the depth of the other annular groove is smaller. Correspondingly, the height of the guiding assembly corresponding to the annular groove with a smaller depression depth is smaller. During the installation and disassembly of the inner cylinder, the annular groove can cross the guiding assembly more labor-savingly, thereby effectively reducing the resistance received by the inner cylinder during the installation and disassembly process; and the annular groove with a larger depression depth can make the guiding assembly embed deeper, thereby increasing the cooperation stability between the inner cylinder and the bracket.

[0016] Preferably, convex points are provided on the inner wall of the mounting hole, and a convex edge is provided on the circumferential side of the inner cylinder close to the end of the mounting hole, and the convex edge crosses the convex points to install the inner cylinder into the outer shell. With the foregoing technical solution, the cooperation between the convex points and the convex edge can limit the inner cylinder, reducing the possibility of the inner cylinder moving axially randomly and improving the positioning stability of the inner cylinder.

[0017] Preferably, a boss is provided on the inner wall of the mounting hole, the inner diameter of the boss is smaller than the outer diameter of the convex edge, the inner cylinder is installed in the outer shell so that the boss abuts against the convex edge, and the convex edge is located between the convex point and the boss. With the foregoing technical solution, the boss can limit the convex edge, preventing the inner cylinder from extending excessively; in addition, the cooperation between the boss and the convex edge can also ensure more accurate installation of the inner cylinder and reduce the shaking amplitude of the inner cylinder in the axial direction.

[0018] Preferably, an end cover is provided at the end of the inner cylinder close to the mounting hole. The end cover is provided with an inlet for putting cat litter. A notch is provided on the inner wall of the inlet, and the notch is located inside the end cover. A holding area is formed between the notch and the outer side surface of the end cover; and / or, a plurality of drain holes communicating with the inside of the inner cylinder are provided on the surface of the inner cylinder, and the drain holes are distributed at intervals along the circumferential direction of the inner cylinder. With the foregoing technical solution, the holding area can facilitate the user to apply force to the inner cylinder, which is beneficial to extracting the inner cylinder and makes the installation and disassembly of the inner cylinder more convenient and labor-saving; in addition, setting the notch inside the end cover can hide the notch and maintain the integrity of the end cover, which is beneficial to improving the aesthetics of the inner cylinder; secondly, the drain holes can drain the accumulated water inside the inner cylinder after cleaning, thereby reducing the accumulated water inside the inner cylinder and accelerating the drying speed of the inner cylinder.

[0019] Other features and advantages of the present utility model will be disclosed in detail in the following specific embodiments and drawings. Description of the Drawings

[0020] The following further describes the present utility model with reference to the drawings:

[0021] Figure 1 is a schematic structural diagram of a cat litter box of the present utility model;

[0022] Figure 2 is an exploded view of a cat litter box of the present utility model;

[0023] Figure 3 is Figure 1 a partial enlarged view of part A in

[0024] Figure 4 is a schematic structural diagram of the bracket and the inner cylinder in a cat litter box of the present utility model;

[0025] Figure 5 is Figure 4 a partial enlarged view of part B in

[0026] Figure 6 is a schematic structural diagram of the end cover in a cat litter box of the present utility model

[0027] Figure 7 is a schematic structural diagram of the bracket in a cat litter box of the present utility model;

[0028] Figure 8 is Figure 7 A partial enlarged view of part C in it;

[0029] Figure 9 This is a schematic structural diagram of a guiding component in a cat litter box of the present utility model.

[0030] Reference numerals: 1 housing, 11 mounting holes, 12 bumps, 2 inner cylinder, 21 annular grooves, 22 end caps, 221 convex edges, 222 notches, 23 inlets, 24 sand leakage openings, 25 drain holes, 3 brackets, 31 U-shaped grooves, 32 mounting grooves, 33 positioning parts, 34 through holes, 331 ribs, 332 positioning grooves, 4 waste bins, 5 driving mechanisms, 6 guiding components, 61 mounting seats, 611 receiving cavities, 612 positioning holes, 62 balls. Specific embodiments

[0031] The following explains and illustrates the technical solutions of the embodiments of the present utility model with reference to the accompanying drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise clearly defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figures 1 to 9 As shown, this embodiment shows a cat litter box, including an outer shell 1, a bracket 3 fixed inside the outer shell 1, a garbage bin 4 slidably connected to the bracket 3, and an inner cylinder 2 placed on the bracket 3, the bracket 3 is installed on the bottom plate of the outer shell 1, the outer shell 1 is provided with a mounting hole 11 for the inner cylinder 2 to enter and exit, the lower side of the mounting hole 11 is provided with a through hole for the garbage bin 4 to enter and exit, the bracket 3 is provided with a driving mechanism 5 for driving the inner cylinder to rotate, the output end of the driving mechanism 5 is provided with a transmission gear, the end of the inner cylinder 2 away from the mounting hole 11 is provided with a passive gear transmission-connected to the transmission gear, and the driving mechanism 5 drives the inner cylinder 2 to rotate through the meshing of the transmission gear and the passive gear.

[0036] like Figure 2 As shown, in this embodiment, the bracket 3 is provided with a guide component 6 for guiding the inner cylinder 2 to enter and exit the mounting hole 11. The guide component 6 guides the inner cylinder 2 to be withdrawn from the outer shell 1 along the mounting hole 11, or installed into the outer shell 1 so that the inner cylinder 2 is transmission-connected with the driving mechanism 5. The outer shell 1 is provided with a mounting hole 11, and the bracket 3 is provided with a guide component 6. Under the action of the guide component 6, the inner cylinder 2 can be directly withdrawn from the outer shell 1 along the mounting hole 11 or installed into the outer shell 1 along the mounting hole 11. During the installation and disassembly process, the inner cylinder 2 does not need to disassemble the outer shell 1, and can be directly withdrawn or inserted along the mounting hole 11, so that the installation and disassembly of the inner cylinder 2 can be completed in one step, thereby simplifying the operation of the inner cylinder 2, facilitating the user to clean the inner cylinder 2, and helping to improve the cleaning efficiency of the inner cylinder 2.

[0037] like Figure 2 and Figure 4As shown, in this embodiment, a ring groove 21 is provided on the outer peripheral side of the inner cylinder 2. After the inner cylinder 2 is completely installed into the outer shell 1, the end of the guiding component 6 extends into the ring groove 21 and is in sliding fit with the ring groove 21. At the same time, the transmission gear of the driving mechanism 5 remains meshed with the passive gear. The cooperation between the guiding component 6 and the ring groove 21 can ensure the accurate positioning of the inner cylinder 2 and the bracket 3, effectively preventing the inner cylinder 2 from shifting and misaligning during rotation, making the rotation of the inner cylinder 2 more stable. In addition, the cooperation between the guiding component 6 and the ring groove 21 can allow users to clearly perceive that the inner cylinder 2 and the bracket 3 are already installed in place, making the installation of the inner cylinder 2 more convenient and simple, which is beneficial to improving the user experience. In addition, to make it more labor-saving to pull the inner cylinder 2 out of the outer shell 1, in this embodiment, guiding inclined surfaces are provided on both sides of the ring groove 21. When the inner cylinder 2 is gradually pulled out of the outer shell 1 under the action of an external force, the guiding component 6 disengages from the ring groove 21 under the action of the guiding inclined surface, and then the inner cylinder 2 disengages from the bracket 3 in the axial direction. The guiding inclined surface can reduce the external force required for the guiding component 6 to disengage from the ring groove 21, enabling users to pull out the inner cylinder 2 with a smaller force.

[0038] As Figure 4 shown, in this embodiment, a U-shaped groove 31 is provided on the upper side of the bracket 3, and the inner cylinder 2 is placed in the U-shaped groove 31. The U-shaped groove 31 is provided with 4 guiding components 6, and two ring grooves 21 are provided on the outer peripheral side of the inner cylinder 2. The two ring grooves 21 are respectively close to both ends of the inner cylinder 2. Each ring groove 21 is slidably fitted with two guiding components 6. The two guiding components 6 are symmetrically distributed on both sides of the inner cylinder 2, and the guiding components 6 are all located at the top of the bracket 3. Each ring groove 21 is fitted with two guiding components 6, which can enhance the cooperation stability between the guiding component 6 and the ring groove 21, making the rotation of the inner cylinder 2 more stable. In addition, the two ring grooves 21 are respectively close to both ends of the inner cylinder 2, so that the external force received by the inner cylinder 2 is more dispersed, reducing the phenomenon of stress concentration and making the positioning of the inner cylinder 2 more stable. Secondly, the two guiding components 6 in each group are symmetrically distributed on both sides of the inner cylinder 2, making the force on the inner cylinder 2 more balanced and reducing the possibility of the inner cylinder 2 disengaging from the U-shaped groove 31.

[0039] It should be noted that in this embodiment, the recess depths of the two annular grooves 21 are different. The recess depth of the annular groove 21 near the rear end of the inner cylinder 2 is greater than that of the annular groove 21 near the front end of the inner cylinder 2. In order to make the guiding component 6 cooperate more stably with the annular groove 2, the protruding height of the guiding component 6 corresponding to the rear end of the inner cylinder 2 is greater than that of the guiding component 6 corresponding to the front end of the inner cylinder 2. The annular groove 21 at the rear end of the inner cylinder 2 can increase the embedding depth of the guiding component 6, making the cooperation between the guiding component 6 and the annular groove 21 more stable and reliable, and effectively avoiding axial sliding of the inner cylinder 2 during rotation. In addition, during the installation of the inner cylinder 2, the guiding component 6 near the installation hole 11 is first embedded into the annular groove 21 at the rear end of the inner cylinder 2. Since the protruding height of the guiding component 6 near the installation hole 11 is small, the annular groove 21 at the rear end of the inner cylinder 2 can more easily cross the guiding component 6, reducing the resistance received by the inner cylinder 2 during installation and making the installation of the inner cylinder 2 simpler and more labor-saving. Correspondingly, before the inner cylinder 2 is detached from the installation hole, the annular groove 21 at the rear end of the inner cylinder 2 can also more easily cross the guiding component 6, reducing the resistance received by the inner cylinder 2 during disassembly and making the disassembly of the inner cylinder 2 simpler and more labor-saving.

[0040] As Figure 9 shown, in this embodiment, the guiding component 6 includes a mounting seat 61 and a ball 62. The mounting seat 61 is internally provided with a receiving cavity 611 for receiving the ball 62. A through hole 34 communicating with the receiving cavity 611 is provided at the top of the mounting seat 61. The diameter of the through hole 34 is smaller than the diameter of the ball 62. The ball 62 partially protrudes from the through hole 34 and slidably cooperates with the annular groove 21. The ball 62 is rotatably mounted in the mounting seat 61, so that a rolling friction is formed between the ball 62 and the outer peripheral side of the inner cylinder 2, thereby reducing the resistance between the inner cylinder 2 and the guiding component 6, making the installation, disassembly, and rotation of the inner cylinder 2 smoother, avoiding the possibility of the inner cylinder 2 being stuck, and being beneficial to improving the installation and disassembly efficiency of the inner cylinder 2. In addition, a rolling friction is formed between the ball 62 and the inner cylinder 2, which can significantly reduce the wear between the guiding component 6 and the inner cylinder 2, be beneficial to improving the service life of the inner cylinder 2 and the guiding component 6, and also reduce the maintenance cost. Secondly, the cooperation between the ball 62 and the mounting seat 61 can make the ball 62 rotate in any direction, and thus can simultaneously guide the axial movement and circumferential rotation of the inner cylinder 2.

[0041] As Figure 7 and Figure 8As shown in the figure, in this embodiment, the bracket 3 is provided with an installation groove 32 for installing the guiding component 6. The bottom of the installation groove 32 is provided with a positioning portion 33 for positioning the guiding component 6. The positioning portion 33 includes two ribs 331. A positioning groove 332 is formed between the two ribs 331. The structure at the bottom of the mounting seat 61 matches the positioning groove 332. After the mounting seat 61 is placed in the positioning groove 332, the whole mounting seat 61 is positioned between the two ribs 331. A threaded hole is provided in the positioning groove 332, and the mounting seat 61 is provided with a mounting hole 11 that matches the positioning hole 612. When the mounting seat 61 is placed in the positioning groove 332, the mounting hole 11 is aligned with the threaded hole. The mounting seat 61 is fixed by connecting a fastener to the threaded hole. The positioning groove 332 formed by the ribs 331 can accurately position the mounting seat 61, making the installation of the mounting seat 61 simpler and more convenient; in addition, the ribs 331 can also limit the mounting seat 61, reducing the possibility of the mounting seat 61 shaking or moving, which is beneficial to improving the stability of the guiding component 6.

[0042] In addition, in order to improve the utilization rate of the internal space of the housing 1, in this embodiment, the installation groove 32 is located on the upper surface of the bracket 3 and is formed by recessing downward along the upper surface. After the guiding component 6 is positioned in the installation groove 32, part of the ball 62 protrudes from the surface of the bracket 3. When the inner cylinder 2 is placed in the U-shaped groove 31, the outer peripheral side of the inner cylinder 2 contacts the ball 62. The ball 62 supports the inner cylinder 2 and a gap is formed between the inner cylinder 2 and the upper surface of the bracket 3. The installation groove 32 can reduce the gap between the inner cylinder 2 and the bracket 3, making the assembly of the inner cylinder 2 and the bracket 3 more compact. At the same time, it can also improve the utilization rate of the internal space of the housing 1, thereby reducing the volume of the housing 1 and making the whole cat litter box smaller and more portable.

[0043] As Figure 3 and Figure 6As shown in the figure, in this embodiment, the inner wall of the mounting hole 11 is provided with 4 bumps 12, and the 4 bumps 12 are evenly distributed along the axial direction of the mounting hole 11. The inner wall of the mounting hole 11 is provided with a boss extending radially. The inner cylinder 2 includes a front end and a rear end. The rear end is the end of the inner cylinder 2 away from the mounting hole 11, and the passive gear is mounted at the rear end of the inner cylinder 2. The front end is the end of the inner cylinder 2 close to the mounting hole 11. A end cover 22 is provided at the front end. An inlet 23 for putting cat litter is provided in the middle of the end cover 22. A radially extending convex edge 221 is provided on the outer peripheral side of the end cover 22. The outer diameter of the convex edge 221 is greater than the inner diameter of the boss. When the inner cylinder 2 is completely installed in the outer shell 1, the convex edge 221 passes over the bump 12 and abuts against the boss, so that the end cover 22 is limited between the bump 12 and the boss. The boss can limit the convex edge 221 to prevent the inner cylinder 2 from extending excessively; in addition, the cooperation between the boss and the convex edge 221 can also ensure that the installation of the inner cylinder 2 is more accurate, and at the same time can reduce the shaking amplitude of the inner cylinder 2 in the axial direction. The cooperation between the bump 12 and the convex edge 221 can limit the inner cylinder 2 and reduce the possibility of the inner cylinder 2 moving axially at will, improving the positioning stability of the inner cylinder 2.

[0044] As Figure 6 shown, in this embodiment, the inner wall of the inlet 23 is provided with a notch 222, and the notch 222 is located inside the end cover 22. A holding area is formed between the notch 222 and the outer side surface of the end cover 22. In this embodiment, the notch 222 is located on the upper side of the inner wall of the inlet 23. The holding area can facilitate the user to apply force to the inner cylinder 2, which is beneficial to extracting the inner cylinder 2 and making the installation and disassembly of the inner cylinder 2 more convenient and labor-saving; in addition, setting the notch 222 inside the end cover 22 can hide the notch 222 and maintain the integrity of the end cover 22, which is beneficial to improving the aesthetics of the inner cylinder 2; in addition, as Figure 5 shown, in this embodiment, the surface of the inner cylinder 2 is provided with a plurality of drain holes 25 communicating with the inside of the inner cylinder 2. The drain holes 25 are spaced along the circumferential direction of the inner cylinder 2. When the inner cylinder 2 is cleaned, there will be accumulated water inside the inner cylinder 2. The drain holes 25 can drain the accumulated water inside the inner cylinder 2, thereby reducing the accumulated water inside the inner cylinder 2 and accelerating the drying speed of the inner cylinder 2.

[0045] As Figure 4 and Figure 7 shown, in this embodiment, a sand leakage port 24 is provided on the outer peripheral side of the inner cylinder 2. A perforation is provided at the bottom of the U-shaped groove 31. The top of the garbage bin 4 is open and is located below the perforation. When the cat litter box needs to be cleaned, the driving mechanism 5 controls the installation of the inner cylinder 2 until the sand leakage port 24 rotates to the lowest position of the inner cylinder 2. At this time, the sand leakage port 24 is aligned with the perforation, and the lumps inside the inner cylinder 2 fall into the garbage bin 4 along the sand leakage port 24, thereby realizing the cleaning of the lumps.

[0046] The installation process of the inner cylinder 2 in this embodiment is as follows:

[0047] The user can insert part of the fingers into the notch 222 on the inner wall of the inlet 23, hold the holding area, and then align the rear end of the inner cylinder 2 with the mounting hole 11. At the same time, gradually push the inner cylinder 2 into the mounting hole 11. During the insertion process of the inner cylinder 2, the outer peripheral side of the inner cylinder 2 first contacts the guiding component 6 on the side of the bracket 3 close to the mounting hole 11. At the same time, the balls 62 in the wire component rotate as the inner cylinder 2 moves axially, so that the balls 62 form rolling friction with the outer side wall of the inner cylinder 2, thereby guiding the insertion of the inner cylinder 2 and making the axial movement of the inner cylinder 2 smoother. When the guiding component 6 is embedded in the annular groove 21 near the rear end, push the inner cylinder 2 to make the inner cylinder 2 continue to insert. At this time, the guiding component 6 disengages from the annular groove 21 under the action of the guiding inclined surface until the transmission gear of the driving mechanism 5 meshes with the driven gear, which completes the installation of the inner cylinder 2. At this time, the balls 62 of the guiding component 6 are embedded in the annular groove 21 and are in sliding fit with the annular groove 21. At the same time, the convex edge 221 passes over the convex point 12 and abuts against the convex platform; in this embodiment, the disassembly process of the inner cylinder 2 is opposite to the installation process of the inner cylinder 2, and will not be elaborated here one by one.

[0048] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A cat litter box, comprising a housing, a bracket fixed inside the housing, and an inner cylinder placed on the bracket. The housing is provided with an installation hole for the inner cylinder to enter and exit, and the bracket is provided with a driving mechanism for driving the inner cylinder to rotate, characterized in that: The bracket is provided with a guiding component for guiding the inner cylinder in and out of the mounting hole. The guiding component guides the inner cylinder to be withdrawn from the housing along the mounting hole, or to be installed into the housing so that the inner cylinder is in transmission connection with the driving mechanism.

2. The litter box according to claim 1, wherein: A ring groove is provided on the outer peripheral side of the inner cylinder. The guiding component extends into the ring groove and is in sliding fit with the ring groove to realize the installation of the inner cylinder and the housing.

3. The litter box according to claim 2, wherein: The guiding component includes a mounting seat and a ball. The interior of the mounting seat is provided with a receiving cavity for receiving the ball. The top of the mounting seat is provided with a through hole communicating with the receiving cavity. The diameter of the through hole is smaller than the diameter of the ball. A part of the ball protrudes from the through hole and is in sliding fit with the ring groove.

4. The litter box according to claim 3, wherein: The bracket is provided with a plurality of ribs, and positioning grooves for positioning the mounting seat are formed between the ribs.

5. The litter box according to claim 4, wherein: The bracket is provided with a mounting groove. The ribs are arranged in the mounting groove. The guiding component is positioned in the mounting groove through the ribs and partially protrudes from the surface of the bracket.

6. The litter box according to claim 1, wherein: A U-shaped groove is provided on the upper side of the bracket. The inner cylinder is placed in the U-shaped groove. The U-shaped groove is provided with at least two guiding components, and two of the guiding components are symmetrically distributed on both sides of the inner cylinder.

7. A cat litter box according to claim 6, characterized in that: Two ring grooves are provided on the outer peripheral side of the inner cylinder. The two ring grooves are respectively close to both ends of the inner cylinder, and the depths of the two ring grooves are different. The U-shaped groove is provided with 4 guiding components, and each ring groove is in sliding fit with two guiding components.

8. The litter box according to claim 1, wherein: Convex points are provided on the inner wall of the mounting hole. A convex edge is provided on the circumferential side of the inner cylinder close to the end of the mounting hole. The convex edge passes over the convex points so that the inner cylinder is installed into the housing.

9. The litter box according to claim 8, wherein: A convex platform is provided on the inner wall of the mounting hole. The inner diameter of the convex platform is smaller than the outer diameter of the convex edge. The inner cylinder is installed into the housing so that the convex platform abuts against the convex edge, and the convex edge is located between the convex points and the convex platform.

10. A cat litter box according to claim 1, characterized in that: An end cover is provided at the end of the inner cylinder close to the mounting hole. The end cover is provided with an inlet for putting cat litter. A notch is provided on the inner wall of the inlet, and the notch is located inside the end cover. A holding area is formed between the notch and the outer side surface of the end cover; and / or, a plurality of drain holes communicating with the inside of the inner cylinder are provided on the surface of the inner cylinder, and the drain holes are distributed at intervals along the circumference of the inner cylinder.

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