Inner cylinder of cat litter basin and cat litter basin

Abstract

The utility model discloses an inner cylinder of a cat litter basin and the cat litter basin, belongs to the field of cat litter basins, solves the problem that the inner cylinder of the existing cat litter basin possibly affects the cleaning effect or scratches pets, and adopts the technical scheme that the inner cylinder mainly comprises a first shell and a second shell which are mutually spliced through a fastener, a litter separation assembly and a cat litter bin are arranged in the inner cylinder, the first shell and the second shell are mutually spliced to form a first splicing part and a second splicing part which are distributed in the axial direction of the inner cylinder, the first splicing part and the second splicing part are each provided with a connecting structure used for connecting the first shell and the second shell, and the cat litter bin is fixed to the bottom of the inner cylinder. The upper side space of the cat litter bin is divided into a collecting bin for cat litter to enter and a moving cavity for pets to move by the litter separating assembly, the first splicing part is located in the collecting bin, and the second splicing part is located on the lower side of the cat litter bin. The pet cage is mainly used for preventing the splicing part of the inner cylinder from being directly exposed in an activity chamber of a pet.

Description

Technical Field

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

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

[0003] The inner cylinder of the existing cat litter box is usually composed of two shells spliced together. The splicing methods of the inner cylinder usually include two types: axial horizontal equal division type and radial vertical equal division type. And a convex structure or a fastener will be arranged at the splicing part of the shells to enhance the connection stability of the shells. In order not to affect the rotation of the inner cylinder, the convex structure or the fastener will be arranged inside the inner cylinder, resulting in the convex structure or the fastener being on the inner wall of the cavity where the pet moves. Among them, the convex structure may block the clumped cat litter, and then cause the clumped cat litter to not be discharged from the inner cylinder smoothly, affecting the cleaning effect of the inner cylinder. And the sharp part of the tip of the fastener may be exposed on the inner wall of the inner cylinder, and then it is easy to scratch the pet, reducing the use experience. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the inner cylinder of the existing cat litter box may affect the cleaning effect or may scratch the pet. For this reason, an inner cylinder of a cat litter box and the cat litter box are provided, which can prevent the splicing part of the inner cylinder from being directly exposed in the activity chamber of the pet.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An inner cylinder of a cat litter box includes a first shell and a second shell spliced together by fasteners. A sand separating component for screening out clumped cat litter and a cat litter bin for holding cat litter are arranged inside the inner cylinder. The first shell and the second shell are spliced together to form a first splicing part and a second splicing part distributed along the axis of the inner cylinder. The first splicing part and the second splicing part are both provided with connection structures for connecting the first shell and the second shell. The cat litter bin is fixed at the bottom of the inner cylinder. The sand separating component divides the space above the cat litter bin into a collection bin for cat litter to enter and an activity chamber for the pet to move. Among them, the first splicing part is located in the collection bin, and the second splicing part is located below the cat litter bin.

[0007] The beneficial effects of adopting the utility model are:

[0008] The interior of the inner cylinder described in the utility model is provided with a litter dividing assembly and a cat litter bin, the cat litter bin covers the bottom of the inner cylinder, and the litter dividing assembly divides the upper space of the cat litter bin into a collecting bin and an active cavity, wherein the first splicing portion of the inner cylinder is hidden in the collecting bin, and the second splicing portion is hidden under the cat litter bin, that is, the first splicing portion and the second splicing portion are not directly exposed in the active cavity. Since the litter dividing assembly can screen out the agglomerated cat litter and restrict the agglomerated cat litter from entering the collecting bin, in the process of removing the agglomerated cat litter, the connection structure of the first splicing portion and the second splicing portion will not block the agglomerated cat litter, so that the agglomerated cat litter can be smoothly separated from the inner cylinder, which helps to improve the cleaning effect of the agglomerated cat litter; in addition, the connection structure of the first splicing portion and the second splicing portion is not in the active cavity, which can effectively avoid the sharp tip of the fastener in the connection structure from being exposed in the active cavity and causing the risk of scratching the pet, which can protect the pet and help to improve the use experience.

[0009] Secondly, since the inner cylinder is installed inside the outer shell of the cat litter box during use, the outer surface of the inner cylinder is hidden in the outer shell and cannot be directly observed, while the user can observe the inner wall of the inner cylinder through the entrance of the inner cylinder. The first splicing part and the second splicing part are respectively arranged in the collection bin and on the lower side of the cat litter bin, so that the first splicing part and the second splicing part can be hidden to avoid being directly exposed to the user's observation field of view, which can make the appearance of the inner cylinder more complete and help improve the aesthetics of the inner cylinder.

[0010] Preferably, one end of the sand-dividing component is fixed to the inner wall of the first shell and fits with the inner wall of the first shell, the other end of the sand-dividing component extends toward the second shell and abuts against the second shell, the part of the sand-dividing component close to the second shell is provided with a sieve hole for cat litter to pass through, and the first shell, the second shell and the sand-dividing component are surrounded to form a collection bin. Using the above-mentioned technical solution, one end of the sand-dividing component is fixed to the first shell, and the other end abuts against the second shell, that is, the sand-dividing component forms a cover for the first splicing part, so that the first splicing part is in the collection bin, and the connection structure of the first splicing part does not affect the cleaning of the agglomerated cat litter and the activities of the pet, which helps to improve the user experience.

[0011] Preferably, the sand separation assembly includes a storage plate and a sieve plate, one end of the storage plate is fixed to the second housing, and the other end is connected to the sieve plate, and the sieve hole is set on the sieve plate. With the above technical solution, during the cleaning process of the inner cylinder, cat litter that has not formed agglomerates can enter the collection bin from the sieve holes on the sieve plate, thereby preventing intact cat litter from being cleaned out of the inner cylinder and causing waste of cat litter. The diameter of the agglomerated cat litter is larger than the sieve hole, so that the agglomerated cat litter cannot enter the collection bin, so that the agglomerated cat litter can be smoothly separated from the inner cylinder, thereby improving the cleaning effect of the inner cylinder.

[0012] Preferably, the top of the inner cylinder is provided with a sand leakage port, the sand leakage port is arranged in the first shell, the end of the storage plate is fixed to the edge of the sand leakage port, and the end of the storage plate close to the sand leakage port is provided with a guide surface for guiding the cat litter into the sand leakage port. With the above technical solution, during the cleaning process of the inner cylinder, the storage plate can guide the agglomerated cat litter to move to the sand leakage port, which can effectively reduce the amount of agglomerated cat litter remaining inside the inner cylinder and improve the cleaning effect of the inner cylinder on the agglomerated cat litter; in addition, the guide surface can guide the agglomerated cat litter to leave the inner cylinder from the sand leakage port, reduce the possibility of the storage plate blocking the agglomerated cat litter, help reduce the amount of agglomerated cat litter remaining inside the inner cylinder, and provide the cleaning effect of the inner cylinder on the agglomerated cat litter.

[0013] Preferably, the storage plate is provided with two pins at the end near the sand leakage port, and the two pins extend to the two ends of the sand leakage port in the axial direction of the inner cylinder respectively. With the above technical solution, the two pins can guide the agglomerated cat litter at the two ends of the sand leakage port to the sand leakage port, thereby reducing the possibility of agglomerated cat litter passing through the sand leakage port, ensuring that more agglomerated cat litter can move to the sand leakage port, and improving the cleaning effect of the inner cylinder.

[0014] Preferably, the end of the sand-dividing assembly abutting against the second shell is close to the connection between the second shell and the cat litter bin. With the above-mentioned technical solution, the first splicing part is in the collection bin, the second splicing part is on the lower side of the cat litter bin, and the end of the sand-dividing assembly abutting against the second shell is close to the connection between the second shell and the cat litter bin, that is, most of the second shell is in the collection bin and on the lower side of the cat litter bin, so the movable cavity is basically formed by the first shell, the cat litter assembly and the collection bin. In order to make the inner cylinder achieve the effect of not getting feces, the anti-fouling coating can be sprayed only on the inner wall of the first shell, and there is no need to spray the second shell, which helps to reduce the manufacturing cost of the inner cylinder.

[0015] Preferably, buckles are provided on both sides of the cat litter bin, and the inner wall of the inner cylinder is provided with a clamping piece that is clamped with the buckles, and the buckles and the clamping piece are clamped with each other to realize the connection between the cat litter bin and the inner cylinder, and the second splicing part is located between the two clamping pieces. With the above technical solution, the clamping piece on the inner wall of the inner cylinder is higher than the second splicing part. When the cat litter bin is clamped with the inner cylinder, the second splicing part can be ensured to be located at the lower side of the cat litter bin, so that the second splicing part is not directly exposed in the activity chamber, and the connection structure of the second splicing part is prevented from affecting the cleaning of the agglomerated cat litter or the activities of the pet.

[0016] Preferably, a first gripping portion is formed by concave inward on the outer peripheral side of the inner cylinder. The first gripping portion protrudes from the inner wall of the inner cylinder and is located inside the collection bin. With the foregoing technical solution, the first gripping portion can make it more convenient and labor-saving to take the inner cylinder, and can reduce the installation difficulty of the inner cylinder; in addition, the first gripping portion is formed by concave inward on the outer peripheral side of the inner cylinder, which can prevent the first gripping portion from protruding from the outer surface of the inner cylinder and affecting the normal rotation of the inner cylinder. At the same time, since the first gripping portion does not protrude from the outer surface of the inner cylinder, it can also improve the aesthetics of the inner cylinder; secondly, since the first gripping portion is located inside the collection bin, it can effectively prevent the first gripping portion from affecting the cleaning of the clumped cat litter or the activities of pets.

[0017] Preferably, an anti-fouling coating is provided on the inner wall of the first housing. With the foregoing technical solution, the anti-fouling coating can reduce the adhesion of clumped cat litter to the inner wall of the inner cylinder, contribute to improving the cleanliness of the inner wall of the inner cylinder, facilitate the cleaning by the user, and can also improve the user experience; in addition, since the clumped cat litter is only in the activity cavity, and basically only the inner wall of the first housing in the inner cylinder is exposed to the activity cavity, so only the inner wall of the first housing needs to be sprayed with the anti-fouling coating, without spraying the second housing, which helps to reduce the manufacturing cost of the inner cylinder; secondly, since the coating is prone to fall off due to friction at the edge, and the first splicing portion and the second splicing portion are not directly exposed in the activity cavity, so the edge of the coating is not likely to fall off and fail due to friction, which helps to improve the service life of the coating.

[0018] The present utility model also discloses a cat litter box, including an outer shell, an inner cylinder and a bracket. The inner cylinder is placed on the bracket, and the bracket is provided with a driving component for driving the inner cylinder to rotate. A garbage bin is provided at the bottom of the bracket, and the inner cylinder adopts the inner cylinder described in any one of the above.

[0019] Other features and advantages of the present utility model will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 It is a schematic structural view of Embodiment 1 of the present utility model;

[0022] Figure 2 It is an exploded view of Embodiment 1 of the present utility model;

[0023] Figure 3 It is a sectional view of Embodiment 1 of the present utility model;

[0024] Figure 4 It is a schematic structural view of removing the second housing in Embodiment 1 of the present utility model;

[0025] Figure 5Schematic diagram of the structure of the first embodiment of the present utility model excluding the second housing and the cat litter bin;

[0026] Figure 6 Schematic diagram of the structure of the second embodiment of the present utility model;

[0027] Figure 7 Explosion diagram of the second embodiment of the present utility model.

[0028] Reference numerals: 1, outer shell; 2, inner cylinder; 21, first housing; 211, sand leakage port; 212, first gripping part; 213, second gripping part; 214, movable cavity; 22, second housing; 23, front cover; 24, rear cover; 25, entrance; 26, sand separating assembly; 261, storage plate; 2611, pin; 2612, guiding surface; 262, sieve plate; 2621, sieve hole; 263, collection bin; 264, fixed end; 265, abutting end; 27, cat litter bin; 271, fastening member; 281, first splicing part; 282, second splicing part; 283, connecting structure; 29, clamping member; 3, bracket; 4, garbage bin; 5, driving assembly. Detailed implementation manners

[0029] The technical solutions of the embodiments of the present utility model will be explained and described below 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, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 thus cannot be understood as a limitation to the present utility model.

[0031] 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.

[0032] 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.

[0033] Embodiment 1:

[0034] like Figures 1 to 5 As shown, this embodiment shows an inner cylinder 2 of a cat litter box, including a first shell 21 and a second shell 22 spliced ​​together by fasteners, the interior of the inner cylinder 2 is provided with a litter separation component 26 for screening out agglomerated cat litter, and a cat litter bin 27 for containing cat litter, the first shell 21 and the second shell 22 are spliced ​​together to form a first splicing portion 281 and a second splicing portion 282 distributed along the axial direction of the inner cylinder 2, the first splicing portion 281 and the second splicing portion 282 are both provided with a connecting structure 283 for connecting the first shell 21 and the second shell 22, the cat litter bin 27 is fixed to the bottom of the inner cylinder 2, the litter separation component 26 divides the upper space of the cat litter bin 27 into a collecting bin 263 for cat litter to enter and an activity chamber 214 for pet activities, wherein the first splicing portion 281 is in the collecting bin 263, and the second splicing portion 282 is on the lower side of the cat litter bin 27.

[0035] In the present embodiment, a sand dividing assembly 26 and a cat litter bin 27 are provided inside the inner cylinder 2. The cat litter bin 27 covers the bottom of the inner cylinder 2. The sand dividing assembly 26 divides the upper space of the cat litter bin 27 into a collecting bin 263 and an active cavity 214. The first joint 281 of the inner cylinder 2 is hidden in the collecting bin 263, and the second joint 282 is hidden under the cat litter bin 27, that is, the first joint 281 and the second joint 282 are not directly exposed in the active cavity 214. Since the sand dividing assembly 26 can screen out the agglomerated cat litter and limit the agglomerated cat litter from entering the collecting bin 263, Therefore, in the process of removing the clumped cat litter, the connection structure 283 between the first splicing part 281 and the second splicing part 282 will not block the clumped cat litter, so that the clumped cat litter can be smoothly separated from the inner tube 2, which helps to improve the cleaning effect of the clumped cat litter; in addition, the connection structure 283 between the first splicing part 281 and the second splicing part 282 is not in the active cavity 214, which can effectively avoid the sharp tip of the fastener in the connection structure 283 from being exposed in the active cavity 214 and causing the risk of scratching the pet, which can protect the pet and help to improve the user experience.

[0036] Secondly, since the inner cylinder 2 is installed inside the outer shell 1 of the litter box during use, the outer surface of the inner cylinder 2 is hidden inside the outer shell 1 and cannot be directly observed. However, the user can observe the inner wall of the inner cylinder 2 through the entrance 25 of the inner cylinder 2. By respectively arranging the first splicing part 281 and the second splicing part 282 inside the collection bin 263 and the lower side of the litter bin 27, the first splicing part 281 and the second splicing part 282 can be hidden, preventing the first splicing part 281 and the second splicing part 282 from being directly exposed within the user's field of view, making the appearance of the inner cylinder 2 more complete and helping to improve the aesthetics of the inner cylinder 2.

[0037] As Figure 1 and Figure 2 shown, in this embodiment, the first shell 21 and the second shell 22 are symmetrically distributed, and the first shell 21 and the second shell 22 do not evenly divide the inner cylinder 2 in the vertical or horizontal direction. The first shell 21 and the second shell 22 have two connection points and respectively form the first splicing part 281 and the second splicing part 282. Among them, both the first splicing part 281 and the second splicing part 282 are distributed along the axial direction of the inner cylinder 2, that is, the first splicing part 281 and the second splicing part 282 are not at the highest and lowest ends of the inner cylinder 2, and the first splicing part 281 and the second splicing part 282 are not at the same height of the inner cylinder 2. In this embodiment, the first splicing part 281 is close to the top of the inner cylinder 2, and the second splicing part 282 is close to the bottom of the inner cylinder 2.

[0038] As Figure 2 and Figure 3 shown, in this embodiment, a connection structure 283 for fixing the first shell 21 and the second shell 22 is provided at both the first splicing part and the second splicing part. The connection structure 283 includes a fixing part provided at the end of the first shell 21, a mounting hole provided at the end of the second shell 22, and a fastener for connecting the fixing part and the mounting hole. The fixing part is provided on the inner wall of the first shell 21 and protrudes from the inner wall of the first shell 21, and the fixing part is provided with a threaded hole matching the mounting hole. During the assembly process of the inner cylinder 2, the two ends of the first shell 21 and the two ends of the second shell 22 are spliced together, and the threaded hole of the fixing part is aligned with the mounting hole. Then, the fastener is passed through the mounting hole and threadedly connected to the threaded hole, thereby realizing the splicing of the first shell 21 and the second shell 22. Additionally, in order to prevent the end of the fastener from being exposed inside the inner cylinder 2, in this embodiment, the threaded hole is a blind hole, that is, after the fastener is threadedly connected to the threaded hole, the end of the fastener will not penetrate the fixing part, thereby preventing the end of the fastener from protruding inside the inner cylinder 2 and preventing pets or users from being scratched by the fastener, which helps to improve the safety of use of the inner cylinder 2.

[0039] As Figure 2 and Figure 3As shown in the figure, in this embodiment, the sand separation component 26 has a fixed end 264 fixedly connected to the inner cylinder 2 and an abutting end 265 abutting against the inner wall of the inner cylinder 2. The fixed end 264 is fixed to the inner wall of the first housing 21, and the fixed end 264 is at the top of the inner cylinder 2. The abutting end 265 extends towards the second housing 22 and abuts against the second housing 22. The abutting end 265 is close to the bottom of the inner cylinder 2. The sand separation component 26 divides the upper space of the cat litter bin 27 into a collection bin 263 and an activity chamber 214. The inner wall of the sand separation component 26, a part of the inner wall of the first housing 21, and a part of the inner wall of the second housing 22 enclose the collection bin 263 together. The area of the first housing 21 is smaller than that of the second housing 22. In addition, the sand separation component 26 extends from the first housing 21 to the second housing 22, that is, the sand separation component 26 shields the first splicing part 281, making the first splicing part 281 hidden in the collection bin 263, thereby reducing the impact of the connection structure 283 of the first splicing part 281 on the cleaning of the clumped cat litter and the activities of pets, which helps to improve the user experience.

[0040] As Figure 2 and Figure 3 shown in the figure, in this embodiment, the bottom structure of the cat litter bin 27 is adapted to the bottom structure of the inner cylinder 2, and the top of the cat litter bin 27 is open to facilitate loading cat litter. Buckling members 271 are provided on both sides of the top of the cat litter bin 27. Clamping members 29 that are engaged with the buckling members 271 are provided on the inner walls of the first housing 21 and the second housing 22. The clamping member 29 in the first housing 21 is close to the second connection part, and the position of the clamping member 29 in the inner cylinder 2 is higher than the position of the second connection part. After the clamping member 29 and the buckling member 271 are clamped, the connection between the cat litter bin 27 and the inner cylinder 2 is realized, thereby restricting the displacement of the cat litter bin 27 and preventing the cat litter bin 27 from separating from the inner cylinder 2 during the rotation of the inner cylinder 2, which helps to improve the connection stability between the cat litter bin 27 and the inner cylinder 2. In addition, when the cat litter bin 27 and the inner cylinder 2 are clamped, it can ensure that the second splicing part 282 is on the lower side of the cat litter bin 27, avoiding the second splicing part 282 being directly exposed in the activity chamber 214 and preventing the connection structure 283 of the second splicing part 282 from affecting the cleaning of the clumped cat litter or the activities of pets.

[0041] It should be noted that in this embodiment, the connection between the sand separation component 26 and the first housing 21 is close to the first connection part, and the clamping member 29 of the first housing 21 is close to the second connection part. Therefore, while ensuring that the first connection part and the second connection part are not exposed to the activity chamber 214, the volume of the activity can be increased to a large extent. Without changing the overall volume of the inner cylinder 2, a larger activity space can be provided for pets, which helps to improve the user experience and can also keep the inner cylinder 2 in a small and delicate shape, which helps to increase the popularity.

[0042] In addition, as Figure 3As shown, in this embodiment, the abutting end 265 of the sand separating component 26 is close to the clamping component 29 of the second housing 22 and is located above the clamping component 29. After the inner cylinder 2 is assembled, the second housing 22 is basically covered by the sand separating component 26 and the cat litter bin 27. Therefore, the movable cavity 214 is basically formed by enclosing the first housing 21, the outer wall of the sand separating component 26, and the cat litter bin 27. To prevent the caked cat litter from contaminating the wall surface of the inner cylinder 2, in this embodiment, the inner wall of the first housing 21 is provided with an anti-fouling coating. The anti-fouling coating can reduce the adhesion of the caked cat litter to the inner wall of the inner cylinder 2, help improve the cleanliness of the inner wall of the inner cylinder 2, facilitate the cleaning by the user, and also improve the user experience. During the use of the inner cylinder 2, the cat litter in the cat litter bin 27 will combine with the excrement of the pet (cat) to form caked cat litter. The sand separating component 26 can limit the caked cat litter from entering the collection bin 263. The cat litter bin 27 can also limit the caked cat litter from moving to the lower side of the cat litter bin 27 through the cooperation of the fastening component 271 and the clamping component 29. Therefore, the caked cat litter can only move in the movable cavity 214. In this embodiment, the second housing 22 is basically not exposed in the movable cavity 214, and only most of the first housing 21 is exposed in the movable cavity 214. Therefore, the anti-fouling coating can be sprayed only on the inner wall of the first housing 21 without spraying on the second housing 22, which helps reduce the manufacturing cost of the inner cylinder 2. Secondly, since the coating is prone to fall off due to friction at the edge, and the first splicing part 281 and the second splicing part 282 are not directly exposed in the movable cavity 214, the edge of the anti-fouling coating is not prone to fall off and fail due to friction, which helps improve the service life of the anti-fouling coating. As Figures 2 to 4 As shown, in this embodiment, the sand separating component 26 includes a storage plate 261 and a sieve plate 262. The top end of the storage plate 261 is fixed to the first housing 21. The bottom end of the storage plate 261 extends towards the second housing 22 and is connected to the sieve plate 262. The bottom end of the sieve plate 262 abuts against the second housing 22. The above-mentioned fixed end 264 is located at the top end of the storage plate 261, and the abutting end 265 is located at the bottom end of the sieve plate 262. In addition, the fixed end 264 is adapted to the inner wall of the first housing 21 and remains in contact with the first housing 21. When the cat litter enters the inside of the storage plate 261, the storage plate 261 can collect the cat litter to prevent the cat litter from leaking out of the collection bin 263. A plurality of sieve holes 2621 are provided on the sieve plate 262. The width of the sieve holes 2621 is smaller than the diameter of the caked cat litter and larger than the diameter of the cat litter. Therefore, the sieve holes 2621 can allow the cat litter to pass through and can block the caked cat litter, restricting the caked cat litter from entering the collection bin 263.

[0043] As Figures 1 to 3As shown in the figure, in this embodiment, a sand leakage opening 211 is provided at the top of the first housing 21. The sand leakage opening 211 is located at the top end of the inner cylinder 2, and the side of the sand leakage opening 211 is close to the fixed end 264 of the sand distributing assembly 26, that is, the fixed end 264 is fixed to the edge of the sand leakage opening 211. When the inner cylinder 2 needs to clean the clumped cat litter, the driving assembly 5 in the cat litter basin controls the inner cylinder 2 to rotate ( Figure 3 in the clockwise direction in the figure). During the rotation of the inner cylinder 2, the cat litter and the clumped cat litter gradually move towards the sand distributing assembly 26 and first contact the sieve plate 262. Among them, the cat litter enters the collection bin 263 through the sieve holes 2621, while the clumped cat litter is blocked by the sieve plate 262 and thus remains outside the sand distributing assembly 26. As the inner cylinder 2 rotates, the clumped cat litter outside the sand distributing assembly 26 gradually moves towards the sand leakage opening 211 under the guidance of the storage plate 261. When the inner cylinder 2 rotates 180 degrees, the sand leakage opening 211 is at the lowest end of the inner cylinder 2. At this time, all the clumped cat litter inside the inner cylinder 2 breaks away from the inner cylinder 2 through the sand leakage opening 211, realizing the cleaning of the inner cylinder 2. After that, the inner cylinder 2 rotates in the reverse direction ( Figure 3 in the counterclockwise direction in the figure). As the position of the sand leakage opening 211 gradually rises, the cat litter in the collection bin 263 returns to the cat litter bin 27 through the sieve holes 2621 of the sieve plate 262.

[0044] To reduce the residue of the clumped cat litter on the collection plate, as Figure 5 shown in the figure, in this embodiment, the fixed end 264 is provided with a guiding surface 2612 for guiding the cat litter into the sand leakage opening 211. The guiding surface 2612 can guide the clumped cat litter to break away from the inner cylinder 2 through the sand leakage opening 211, reducing the possibility that the storage plate 261 blocks the clumped cat litter, helping to reduce the residual amount of the clumped cat litter inside the inner cylinder 2, and improving the cleaning effect of the inner cylinder 2 on the clumped cat litter.

[0045] In addition, to enable more clumped cat litter to move towards the sand leakage opening 211, as Figure 5 shown in the figure, in this embodiment, the fixed end 264 is provided with two pins 2611 extending towards the first housing 21, and the two pins 2611 respectively extend to both ends of the sand leakage opening 211 in the axial direction of the inner cylinder 2. A guiding surface 2612 is provided on the side of the pins 2611 close to the sand leakage opening 211. The two pins 2611 can guide the clumped cat litter at both ends of the sand leakage opening 211 to the sand leakage opening 211, thereby reducing the possibility that the clumped cat litter crosses the sand leakage opening 211, ensuring that more clumped cat litter can move towards the sand leakage opening 211, and improving the cleaning effect of the inner cylinder 2.

[0046] As Figure 2 and Figure 3As shown, in this embodiment, a first gripping portion 212 is formed by concave inward on the outer peripheral side of the inner cylinder 2. The first gripping portion 212 protrudes from the inner wall of the inner cylinder 2. The first gripping portion 212 is located between the first connecting portion and the sand leakage opening 211, and the first gripping portion 212 is within the collection bin 263. The first gripping portion 212 can make it more convenient and labor-saving to take the inner cylinder 2, and can reduce the installation difficulty of the inner cylinder 2. In addition, since the first gripping portion 212 is formed by concave inward on the outer peripheral side of the inner cylinder 2, it can be avoided that the first gripping portion 212 protrudes from the outer surface of the inner cylinder 2 and affects the normal rotation of the inner cylinder 2. At the same time, since the first gripping portion 212 does not protrude from the outer surface of the inner cylinder 2, the aesthetics of the inner cylinder 2 can also be improved. Secondly, since the first gripping portion 212 is within the collection bin 263, it can effectively avoid the first gripping portion 212 affecting the cleaning of the clumped cat litter or the activities of pets.

[0047] As Figure 2 shown, in this embodiment, the inner cylinder 2 further includes a front cover 23 and a rear cover 24. After the first housing 21 and the second housing 22 are spliced, the front cover 23 and the rear cover 24 are respectively fixed to the front end and the rear end of the inner cylinder 2. Among them, the front cover 23 is provided with an entrance 25 for cat litter and pets to enter. A second gripping portion 213 is provided between the first housing 21 and the front cover 23. The second gripping portion 213 is located at the top of the entrance 25. The second gripping portion 213 can also facilitate the user to take the inner cylinder 2, which helps to reduce the installation and disassembly of the inner cylinder 2, makes the assembly and maintenance of the inner cylinder 2 simpler and more labor-saving, and can effectively improve the installation and disassembly efficiency of the inner cylinder 2. In addition, the rear cover 24 seals the rear end of the inner cylinder 2, and a transmission gear is provided on the side of the rear cover 24 away from the inner cylinder 2. The drive assembly 5 in the cat litter basin is in transmission connection with the transmission gear. When the drive assembly 5 is started, the inner cylinder 2 is controlled to rotate through the transmission gear, thereby realizing the cleaning of the clumped cat litter by the inner cylinder 2.

[0048] Embodiment Two:

[0049] As Figure 6 and Figure 7 shown, this embodiment shows a cat litter basin, which includes a housing 1, an inner cylinder 2 and a bracket 3. The inner cylinder 2 is placed on the bracket 3. The bracket 3 is provided with a drive assembly 5 for driving the inner cylinder 2 to rotate. A garbage bin 4 is provided at the bottom of the bracket 3. The inner cylinder 2 adopts the inner cylinder 2 as described in Embodiment One.

[0050] As mentioned above, only the specific embodiments of the present utility model are described, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that the present utility model includes but is not limited to the content described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present utility model will be included in the scope of the claims.

Claims

1. An inner cylinder of a cat litter box, comprising a first shell and a second shell spliced with each other through fasteners. A sand separating assembly for screening out lumps and a cat litter bin for containing cat litter are arranged inside the inner cylinder, and it is characterized in that, The first housing and the second housing are spliced with each other to form a first splicing part and a second splicing part distributed along the axial direction of the inner cylinder. Both the first splicing part and the second splicing part are provided with connection structures for connecting the first housing and the second housing. The cat litter bin is fixed to the bottom of the inner cylinder. The sand separation component divides the space above the cat litter bin into a collection bin for cat litter to enter and an activity cavity for pets to move. Among them, the first splicing part is located in the collection bin, and the second splicing part is located below the cat litter bin.

2. The inner cylinder of a cat litter box according to claim 1, characterized in that, One end of the sand separation component is fixed to the inner wall of the first housing and fits with the inner wall of the first housing. The other end of the sand separation component extends towards the second housing and abuts against the second housing. The part of the sand separation component close to the second housing is provided with sieve holes for cat litter to pass through. The first housing, the second housing and the sand separation component enclose to form the collection bin.

3. The inner cylinder of a cat litter box according to claim 2, characterized in that, The sand separation component includes a storage plate and a sieve plate. One end of the storage plate is fixed to the second housing, and the other end is connected to the sieve plate. The sieve holes are arranged on the sieve plate.

4. The inner cylinder of a cat litter box according to claim 3, characterized in that, A sand leakage port is provided at the top end of the inner cylinder. The sand leakage port is arranged on the first housing, and the end of the storage plate is fixed to the edge of the sand leakage port.

5. The inner cylinder of a cat litter box according to claim 4, characterized in that, Two pins are provided at the end of the storage plate close to the sand leakage port. The two pins respectively extend to both ends of the sand leakage port in the axial direction of the inner cylinder.

6. The inner cylinder of a cat litter box according to claim 2, characterized in that, The end of the sand separation component abutting against the second housing is close to the connection part between the second housing and the cat litter bin.

7. The inner cylinder of a cat litter box according to claim 1, characterized in that, Clamping components are provided on both sides of the cat litter bin. A clamping part that is engaged with the clamping components in a clamping manner is provided on the inner wall of the inner cylinder. The clamping components and the clamping part are engaged in a clamping manner to realize the connection between the cat litter bin and the inner cylinder. The second splicing part is located between the two clamping parts.

8. The inner cylinder of a litter box according to claim 1, wherein, A first gripping part is recessed on the outer peripheral side of the inner cylinder. The first gripping part protrudes from the inner wall of the inner cylinder. The first gripping part is located in the collection bin.

9. The inner cylinder of a cat litter box according to claim 1, characterized in that, An anti-fouling coating is provided on the inner wall of the first housing.

10. A cat litter box, comprising a housing, an inner cylinder and a bracket. The inner cylinder is placed on the bracket, and the bracket is provided with a driving component for driving the inner cylinder to rotate. A garbage bin is arranged at the bottom of the bracket, and it is characterized in that, The inner cylinder adopts the inner cylinder as described in any one of claims 1 to 9.

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