Cat litter box with independent inner container
By designing a litter box with an independent inner liner and drive component, the problem of inconvenience in replacing and cleaning the inner liner caused by the one-piece molding of the outer shell is solved, realizing convenient replacement and automatic cleaning of cat litter, and improving the convenience and stability of use.
Patent Information
- Application Number
- CN202522149372.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-11
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-11
AI Technical Summary
The existing litter box has an inner liner and outer shell that are molded as one piece, making it inconvenient to change the litter and clean the inner liner.
Design a litter box with an independent inner liner, which is detachably installed on the outer box and driven by a drive assembly to move a cleaning rake back and forth in the inner liner, combined with an inclined outer shell to provide stable support.
It enables convenient replacement of cat litter and cleaning of the inner liner, reduces the possibility of the litter box tipping over, and improves ease of use through automatic cleaning.
Smart Images

Figure CN224670552U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pet supplies, and more specifically, to a cat litter box with an independent inner liner. Background Technology
[0002] Cats are naturally inclined to bury their excrement after defecating. Currently, pet owners generally provide their pets with pet-specific toilets, such as litter boxes, to guide them to defecate in a fixed area. Most existing cat litter can clump together when wet, making it easy to clean out from other dry cat litter without having to replace all the cat litter.
[0003] In existing technology, the inner liner and outer shell of a common cat litter box are molded as one piece, which saves costs. However, the one-piece molding of the inner liner and outer shell makes it inconvenient to replace cat litter and clean the inner liner. Utility Model Content
[0004] The purpose of this invention is to provide a cat litter box with a stable support structure, which aims to solve the problem that the existing cat litter box structure, in which the inner liner and outer shell are integrally molded, makes it inconvenient to replace cat litter and clean the inner liner.
[0005] This utility model is implemented as follows: a cat litter box with an independent inner liner includes an outer basin, an inner liner, a cleaning rake, and a drive assembly; the inner liner is detachably installed on the outer basin, and the drive assembly is installed on the outer basin to drive the cleaning rake to move back and forth in the inner liner; The outer basin includes an outer shell and an inner basin. The inner basin is recessed inward to form a cavity, and the inner liner is installed in the cavity. The upper edge of the inner basin is connected to the upper edge of the outer shell. The outer shell is arranged around the outer periphery of the inner basin and is inclined outward. The inner basin has an annular groove on the inner side of its upper edge. The inner bladder includes a horizontally arranged bladder bottom and a bladder wall that extends upward around the bladder bottom. The bladder bottom and the bladder wall together form a bladder cavity for containing cat litter. The upper edge of the bladder wall protrudes outward to form an annular edge, which is embedded in the annular groove.
[0006] Furthermore, the gallbladder wall includes a straight wall and an arc-shaped wall located at the tail of the inner gallbladder, the arc-shaped wall extending from the bottom of the gallbladder towards the upper edge of the gallbladder wall in an arc-shaped arrangement.
[0007] Furthermore, a protruding rail is provided above the ring edge. The protruding rail includes a horizontal protruding rail and a vertical protruding rail. The two vertical protruding rails are respectively connected to the two ends of the horizontal protruding rail. The inner side of the arc-shaped wall is connected to the inner side of the horizontal protruding rail, and the inner side of the straight wall is connected to the inner side of the vertical protruding rail.
[0008] Furthermore, the ring edge protrudes outward to form a lug, the lug being located on the outer side of the middle of the horizontal protrusion, and the upper edge of the inner basin is provided with a notch groove, the notch groove being arranged horizontally, and the lug being embedded in the notch groove.
[0009] Furthermore, the inner wall of the straight wall is provided with MAX and MIN marking lines to mark the reference amount of cat litter.
[0010] Furthermore, the outer wall of the inner liner is provided with multiple ribs, which are arranged in a grid pattern at the bottom of the inner liner.
[0011] Furthermore, the middle of the left side wall and the middle of the right side wall of the outer casing are provided with horizontally arranged tracks. The drive assembly includes an active component and a passive component, which are respectively located on both sides of the outer casing. The active component and the passive component can move back and forth along the tracks.
[0012] Furthermore, the drive assembly includes a motor, a drive gear, and a rack. The rack is located on the side of the outer basin and below the track. The rack is parallel to the track, and its working surface faces downward. The drive gear meshes with the rack. The motor drives the drive gear to rotate, causing the drive gear to reciprocate on the rack.
[0013] Furthermore, a transmission shaft is provided between the driving member and the driven member, the driving gear is fixedly connected to the left end of the transmission shaft, and a driven gear is provided at the right end of the transmission shaft, the driven gear meshing with the rack on the right side.
[0014] Furthermore, the active component is provided with a swing arm, the top of which is connected to one end of the cleaning rake, and a micro motor is provided at the tail of the swing arm. The active component is provided with a rack and pinion arranged in an arc shape, and the micro motor is driven by a first gear, which meshes with the rack and pinion.
[0015] Compared with existing technologies, this utility model provides a litter box with an independent inner liner. The inner liner is detachably installed on the outer basin, allowing users to easily remove it for litter replacement or cleaning. The inner liner's circumference is embedded in the outer basin's groove, preventing slippage. A drive assembly moves a cleaning rake back and forth within the inner liner, automatically cleaning the litter. The inclined outer shell provides stable support to the outer basin, reducing the likelihood of the litter box tipping over. Attached Figure Description
[0016] Figure 1This is a three-dimensional schematic diagram of the inner liner of a cat litter box with an independent inner liner provided by this utility model; Figure 2 This is a three-dimensional schematic diagram of the back of the inner liner of a cat litter box with an independent inner liner provided by this utility model; Figure 3 This is a three-dimensional schematic diagram of a cat litter box with an independent inner liner provided by this utility model; Figure 4 This is a three-dimensional schematic diagram from another angle of a cat litter box with an independent inner liner provided by this utility model; Figure 5 This is a three-dimensional schematic diagram of the outer basin of a cat litter box with an independent inner liner provided by this utility model; Figure 6 This is a schematic diagram of the bottom of a cat litter box with an independent inner liner provided by this utility model; Figure 7 This is a schematic diagram of the internal working component of a cat litter box with an independent inner liner provided by this utility model.
[0017] Explanation of reference numerals in the attached figures: 100-Outer basin, 140-Outer shell, 130-Inner basin, 132-Ring groove, 133-Notch groove, 200-Inner liner, 210-Bottom of the liner, 220-Liner wall, 221-Ring edge, 222-Horizontal protrusion, 223-Vertical protrusion, 230-Arched wall, 240-Leg, 250-Rib, 300-Gas box, 400-Cleaning rake, 500-Drive assembly, 501-Motor, 502-Drive gear, 503-Rack, 510-Driver, 511-Swing arm, 5111-Micro motor, 5112-First gear, 512-Rack rail, 513-Control circuit board, 520-Driven component, 600-Rail. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0019] The implementation of this utility model will be described in detail below with reference to specific embodiments.
[0020] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0021] Reference Figures 1 to 7 The image shown is a preferred embodiment of the present invention.
[0022] A litter box with an independent inner liner includes an outer basin 100, an inner liner 200, a cleaning rake 400, and a drive assembly 500; the inner liner 200 is detachably mounted on the outer basin 100, and the drive assembly 500 is mounted on the outer basin 100 for driving the cleaning rake 400 to reciprocate within the inner liner 200. The outer basin 100 includes an outer shell 140 and an inner basin 130. The inner basin 130 is recessed inward to form a cavity, and the inner liner 200 is installed in the cavity. The upper edge of the inner basin 130 is connected to the upper edge of the outer shell 140. The outer shell 140 is arranged around the outer periphery of the inner basin 130 and is arranged in an outward tilt. The inner basin 130 has an annular groove 132 on the inner side of its upper edge. The inner liner 200 includes a horizontally arranged liner bottom 210 and an upwardly extending liner wall 220 surrounding the liner bottom 210. The liner bottom 210 and the liner wall 220 enclose a liner cavity for containing cat litter. The upper edge of the liner wall 220 protrudes outward to form an annular edge 221, which is embedded in the annular groove 132.
[0023] This embodiment provides a litter box with an independent inner liner. The inner liner 200 is detachably installed on the outer basin 100, allowing the user to easily remove the inner liner 200 from the outer basin 100 for litter replacement or cleaning. The inner liner 200's circumferential edge 221 is embedded in the circumferential groove 132 of the outer basin 100, preventing the inner liner 200 from sliding within the outer basin 100. A cleaning rake 400 is driven by a drive assembly 500 to move back and forth within the inner liner 200, automatically cleaning the litter in the litter box. The inclined outer shell 140 provides relatively stable support to the outer basin 100, reducing the possibility of the litter box tipping over.
[0024] Specifically, the gallbladder wall 220 includes a straight wall and an arc-shaped wall 230 located at the tail of the inner gallbladder 200. The arc-shaped wall 230 extends from the bottom of the gallbladder 210 towards the upper edge of the gallbladder wall 220 in an arc shape. Three sides of the gallbladder cavity are straight walls arranged vertically, and the other side is an arc-shaped wall 230. When the cleaning rake 400 moves along the arc-shaped wall 230, the collecting claw of the cleaning rake 400 is slowly lifted, and the clumps in the cat litter are collected onto the collecting claw.
[0025] Furthermore, a protruding railing is provided above the ring edge 221. The protruding railing includes a horizontal protruding railing 222 and a vertical protruding railing 223. The two vertical protruding railings 223 are respectively connected to the two ends of the horizontal protruding railing 222. The inner side of the arc-shaped wall 230 is connected to the inner side of the horizontal protruding railing 222, and the inner side of the straight wall is connected to the inner side of the vertical protruding railing 223. The length of the vertical protruding railing 223 is less than the length of the horizontal protruding railing 222, and the vertical protruding railing 223 and the horizontal protruding railing 222 are connected by an arc. The protruding railing is arranged above the upper edge of the inner wall 220 to reduce the occurrence of cat litter overflowing from the litter box when the cleaning rake 400 moves.
[0026] The rim 221 protrudes outward to form a lug 240, which is located on the outer side of the middle of the horizontal protrusion 222. The upper edge of the inner basin 130 is provided with a notch 133, which is horizontally arranged, and the lug 240 is embedded in the notch 133. On the one hand, the lug 240 facilitates the removal of the inner liner 200 from the outer basin 100. On the other hand, it plays a positioning role when installing the inner liner 200, making the inner liner 200 more stable in the outer basin 100 and less prone to displacement.
[0027] Furthermore, the inner wall of the straight-walled litter box is equipped with MAX and MIN marking lines to indicate the recommended amount of cat litter to use. The MAX marking line indicates the maximum recommended amount of cat litter to use, and the MIN marking line indicates the minimum recommended amount of cat litter to use, making it convenient for users and preventing the litter box from being filled with too much or too little cat litter, which would affect its normal use.
[0028] The outer wall of the inner liner 200 is provided with multiple ribs 250. The multiple ribs 250 are arranged in a grid pattern at the bottom of the inner liner 200, which not only strengthens the inner liner 200 but also saves material costs.
[0029] The outer casing 140 has horizontally arranged tracks 600 on the middle of its left and right side walls. The drive assembly 500 includes a driving member 510 and a driven member 520, which are respectively located on both sides of the outer casing 140. The driving member 510 and the driven member 520 can move back and forth along the tracks 600. When the driving member 510 and the driven member 520 move back and forth along the tracks 600, they drive the cleaning rake 400 to move back and forth within the inner liner 200.
[0030] The drive assembly 500 includes a motor 501, a drive gear 502, and a rack 503. The rack 503 is located on the side of the outer basin 100 and below the track 600. The rack 503 is parallel to the track 600 and its working surface faces downward. The drive gear 502 meshes with the rack 503. The motor 501 drives the drive gear 502 to rotate, causing the drive gear 502 to reciprocate on the rack 503.
[0031] Furthermore, a transmission shaft is provided between the driving member 510 and the driven member 520. The driving gear 502 is fixedly connected to the left end of the transmission shaft, and a driven gear is provided at the right end of the transmission shaft. The driven gear meshes with the rack 503 on the right side. When the motor 501 drives the driving gear 502 to rotate, the transmission shaft rotates accordingly, driving the driven gear to rotate. The driving gear 502 and the driven gear are fixedly connected to the two ends of the transmission shaft, respectively. When the driving gear 502 is driven by the motor 501, the transmission shaft and the driven gear rotate synchronously, thereby causing the driving member 510 and the driven member 520 to move synchronously, making the movement of the cleaning rake 400 smooth.
[0032] Furthermore, the active component 510 includes a swing arm 511, the top of which is connected to one end of the cleaning rake 400. A micro motor 5111 is located at the tail of the swing arm 511. The active component 510 contains an arc-shaped rack and pinion rail 512. The micro motor 5111 is connected to a first gear 5112, which meshes with the rack and pinion rail 512. When the cleaning rake 400 moves from the head to the tail of the inner liner 200, the micro motor 5111 is not in operation. Upon reaching the tail, the micro motor 5111 drives the first gear 5112 to rotate. The first gear 5112 moves on the rack and pinion rail 512, causing the swing arm 511 to swing, thus causing the cleaning rake 400 to rotate. The collecting claw then lifts upwards, scooping cat excrement from the litter into the collecting claw.
[0033] The litter box is also equipped with a trash can 300, which is located on the outside of the inner liner 200.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cat litter box with an independent inner liner, characterized in that, It includes an outer basin, an inner liner, a cleaning rake, and a drive assembly; the inner liner is detachably mounted on the outer basin, and the drive assembly is mounted on the outer basin for driving the cleaning rake to reciprocate within the inner liner; The outer basin includes an outer shell and an inner basin. The inner basin is recessed inward to form a cavity, and the inner liner is installed in the cavity. The upper edge of the inner basin is connected to the upper edge of the outer shell. The outer shell is arranged around the outer periphery of the inner basin and is inclined outward. The inner basin has an annular groove on the inner side of its upper edge. The inner bladder includes a horizontally arranged bladder bottom and a bladder wall that extends upward around the bladder bottom. The bladder bottom and the bladder wall together form a bladder cavity for containing cat litter. The upper edge of the bladder wall protrudes outward to form an annular edge, which is embedded in the annular groove.
2. A cat litter box with an independent inner liner as described in claim 1, characterized in that, The gallbladder wall includes a straight wall and an arc-shaped wall located at the tail of the inner gallbladder. The arc-shaped wall extends from the bottom of the gallbladder to the upper edge of the gallbladder wall in an arc-shaped arrangement.
3. A cat litter box with an independent inner liner as described in claim 2, characterized in that, The ring edge is provided with a protruding rail, which includes a horizontal protruding rail and a vertical protruding rail. The two vertical protruding rails are respectively connected to the two ends of the horizontal protruding rail. The inner side of the arc-shaped wall is connected to the inner side of the horizontal protruding rail, and the inner side of the straight wall is connected to the inner side of the vertical protruding rail.
4. A cat litter box with an independent inner liner as described in claim 3, characterized in that, The ring edge protrudes outward to form a lug, which is located on the outer side of the middle of the horizontal protrusion. The upper edge of the inner basin is provided with a notch, which is arranged horizontally, and the lug is embedded in the notch.
5. A cat litter box with an independent inner liner as described in claim 2, characterized in that, The inner wall of the straight wall is provided with MAX and MIN marking lines to mark the reference amount of cat litter.
6. A cat litter box with an independent inner liner as described in claim 2, characterized in that, The outer wall of the inner liner is provided with multiple ribs, which are arranged in a grid pattern at the bottom of the inner liner.
7. A cat litter box with an independent inner liner as described in any one of claims 1-6, characterized in that, The outer casing has horizontally arranged tracks in the middle of the left and right side walls. The drive assembly includes an active component and a passive component, which are respectively located on both sides of the outer casing. The active component and the passive component can move back and forth along the tracks.
8. A cat litter box with an independent inner liner as described in claim 7, characterized in that, The drive assembly includes a motor, a drive gear, and a rack. The rack is located on the side of the outer basin and below the track. The rack is parallel to the track and its working surface faces downward. The drive gear meshes with the rack. The motor drives the drive gear to rotate, causing the drive gear to reciprocate on the rack.
9. A cat litter box with an independent inner liner as described in claim 8, characterized in that, A transmission shaft is provided between the driving member and the driven member. The driving gear is fixedly connected to the left end of the transmission shaft, and a driven gear is provided at the right end of the transmission shaft. The driven gear meshes with the rack on the right side.
10. A cat litter box with an independent inner liner as described in claim 9, characterized in that, The active component includes a swing arm, the top of which is connected to one end of the cleaning rake. The tail of the swing arm is equipped with a micro motor. The active component contains an arc-shaped rack and pinion, and the micro motor is driven by a first gear that meshes with the rack and pinion.