Intelligent cat litter box

Through the coordinated design of the filter plate on the inner wall of the cylinder and the drive mechanism, combined with the identification and weighing modules, the intelligent cat litter box achieves continuous cleaning and health monitoring, solving the problems of fecal retention and hygiene in the case of multiple cats sharing the same space, and improving the cleaning efficiency and health management of large-scale breeding.

CN224522017UActive Publication Date: 2026-07-21CHANGZHOU BIDUO NAICI PET CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU BIDUO NAICI PET CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional smart litter boxes cause fecal retention due to frequent interruptions in cleaning when multiple cats share the same space. Furthermore, the hidden collection trough is difficult to observe and clean, making it difficult to guarantee hygiene. Existing equipment is not suitable for the needs of large-scale animal husbandry.

Method used

The system combines the filter plate on the inner wall of the cylinder with the drive mechanism to form a dynamic filtration-gravity discharge mechanism. It achieves continuous cleaning of feces through constant rotation speed and is equipped with identification, weighing and control modules for automatic monitoring and sand replenishment.

Benefits of technology

It enables uninterrupted cleaning in high-frequency multi-cat usage scenarios, improves cleaning efficiency and hygiene safety, reduces manual cleaning costs, and has health monitoring functions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an intelligent cat litter basin, including the cylinder of being located on the mounting bracket, drive mechanism, the fixed filter board of cat litter agglomerate separation of cylinder inner wall, the axis of this filter board is angle setting with horizontal plane, the cylinder rotates with constant rotational speed through drive mechanism drive, be equipped with the excrement discharge opening in the position of cylinder surface and filter plate correspondence, be equipped with the excrement collecting groove of being located cylinder outside below this excrement discharge opening, still include identity recognition module, weighing module and control module, through drive mechanism drive cylinder constant continuous rotation, combine the split type design of inner wall filter plate and the angle of inclination setting of excrement discharge opening, form dynamic filtration - gravity excretion collaborative mechanism, realize the uninterrupted cleaning under the high frequency use scene of many cats, improve the excrement cleaning efficiency and cat litter recovery rate, solve the excrement retention, bacteria breeding problem of the existing device because of the inductive start -stop mechanism, the health safety and equipment reliability of large -scale breeding scene have been improved significantly.
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Description

Technical Field

[0001] This utility model relates to pet supplies, and more particularly to a smart cat litter box. Background Technology

[0002] With the booming development of the pet industry and the rise of cat cafes and large-scale catteries, people have placed higher demands on the cleanliness and intelligent management of cat-keeping environments. Traditional litter boxes rely on manual cleaning at regular intervals, which is inefficient and makes it difficult to guarantee hygiene. To address this, various smart litter boxes have emerged on the market, capable of automatically cleaning after the cat leaves. However, these existing automatic cleaning devices generally adopt a "sense of cat departure to start cleaning" mechanism, and often hide the collection trough at the bottom of the device. This design is suitable for single or small numbers of pet cats, but it has serious shortcomings in large-scale cat farms or cat cafes with multiple cats sharing a space due to the large number of cats (e.g., 40 or more) and high usage frequency: because cats frequently and irregularly enter and exit, the device's sensing system repeatedly interrupts the cleaning process due to continuous detection of "cats," resulting in prolonged fecal retention; at the same time, the hidden collection trough structure makes it difficult to observe the fecal accumulation and perform thorough cleaning, easily leading to bacterial growth and odor. Faced with this dilemma, such venues still have to rely mainly on primitive manual cleaning methods, which not only consume a lot of manpower, but also make it difficult to maintain an ideal sanitary environment and effectively monitor the health status of the population. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to provide an intelligent cat litter box that is suitable for large-scale breeding, enables continuous manure removal, and has health monitoring functions.

[0004] Technical Solution: The intelligent cat litter box of this utility model includes a cylinder mounted on a mounting frame for holding cat litter and a driving mechanism. Its features include: a filter plate fixed to the inner wall of the cylinder to separate clumps of cat litter, the axis of which is angled to the horizontal plane; the cylinder is driven to rotate at a constant speed by the driving mechanism; a discharge port for discharging clumps of cat litter is provided on the surface of the cylinder corresponding to the filter plate, and a collection trough is provided below the discharge port, the collection trough being located outside the cylinder; it also includes an electrically connected identification module, a weighing module, and a control module.

[0005] Preferably, the filter plate consists of a filter screen for filtering cat litter and a collection element; the collection element is set at an angle to the discharge port to guide the filtered material to the discharge port for discharge.

[0006] Preferably, the driving mechanism includes a motor and a friction wheel, wherein the wheel surface of the friction wheel contacts the friction layer on the outer circumference of the cylinder for transmission.

[0007] Preferably, the manure collection trough is made of transparent material and can be pulled out and installed on the side of the mounting frame via a sliding rail structure.

[0008] Preferably, the weighing module includes two or more weighing sensors, which are evenly distributed on the load-bearing part of the mounting frame at the bottom of the cylinder.

[0009] Preferably, the identification module is a passive RFID reader, which is mounted on a mounting bracket at the cylinder inlet.

[0010] Preferably, it also includes an automatic sand replenishment system, which includes a sand storage bin and a feeding channel connecting the sand storage bin and the inner cavity of the cylinder, wherein a rotating material feeding component is provided in the feeding channel; the automatic sand replenishment system is electrically connected to the control module.

[0011] Preferably, the control module is electrically connected to the identity recognition module, the weighing module, and the drive mechanism; the control module includes a wireless communication unit for uploading weight data and identity information to a cloud server.

[0012] Preferably, the cylinder is cylindrical or frustum-shaped.

[0013] Beneficial effects: Compared with the prior art, this utility model has the following advantages: By driving the cylinder to rotate at a constant speed through the drive mechanism, combined with the split design of the inner wall filter plate and the tilting angle of the manure outlet, a dynamic filtration-gravity excretion synergistic mechanism is formed, realizing uninterrupted cleaning in high-frequency use scenarios with multiple cats. This not only improves the efficiency of manure cleaning and the cat litter recovery rate, but also solves the problems of manure retention and bacterial growth caused by the sensor start-stop mechanism of existing devices, significantly improving the hygiene and safety and equipment reliability of large-scale breeding scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the intelligent cat litter box in this utility model.

[0015] Figure 2 This is a front view of the intelligent cat litter box of this utility model.

[0016] Figure 3 This is an enlarged schematic diagram of the intelligent cat litter box filter structure in this utility model.

[0017] Figure 4 , 5 Figures 6 and 7 are schematic diagrams illustrating the cleaning status of the intelligent cat litter box in this utility model. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0019] like Figures 1 to 6As shown in this embodiment, a smart litter box has a mounting frame 7 forming the main support structure of the device. A rotatable cylinder 1 is mounted on the upper part of the frame via a bearing seat. The cylinder 1 is filled with cat litter to collect feces, and its outer circumference is covered with a rubber friction layer. The output shaft of the motor 21 of the drive mechanism 2 is connected to a friction wheel 22. The friction wheel 22 presses against the friction layer of the cylinder 1 with constant pressure, forming a contact transmission relationship, driving the cylinder 1 to rotate continuously at a constant speed of 0.5-2 revolutions per hour. A filter plate 3 is fixed to the inner wall of the cylinder 1. The axis of the filter plate 3 is angled to the horizontal plane, ensuring that regardless of the shape of the cylinder 1 or whether an angle exists, any cat litter clumps filtered out by the filter plate 3 will roll towards the feces discharge port 41 and be discharged during the rotation of the cylinder 1 due to gravity. The filter plate 3 consists of a filter screen 31 for filtering cat litter and a collection element 32. A discharge port 41 is located at the end of the collection element 32 where it contacts the back of the cylinder 1. A collection trough 4 is located outside the discharge port 41, below the movement trajectory of the end of the collection element 32. The collection element 32 is angled relative to the discharge port 41 to guide the filtered material to the discharge port 41 for discharge. The collection trough 4 is removably mounted on the side of the mounting frame 7 via a sliding rail, and its transparent material facilitates observation of the feces. The filter plate 3 and the cylinder 1 rotate synchronously. When the filter plate 3 rotates to the bottom litter area, its filter screen 31 sieves the litter, intercepting large clumps of litter and feces onto the filter screen 31. When the filter screen 31 rotates beyond the horizontal position, the large clumps of litter and feces roll down into the collection element 32 due to gravity. Because of the angle between the collection element 32 and the discharge port 41, the large clumps of litter and feces continue to roll down along the collection element 32 to the discharge port 41 for discharge.

[0020] At least two weighing sensors are symmetrically arranged on the load-bearing part of the mounting bracket 7 at the bottom of the cylinder 1 to form a weighing module 6, which monitors the weight changes of the cylinder 1 and its internal load in real time. A passive RFID reader is fixed on the mounting bracket 7 at the inlet of the cylinder 1 as an identification module 5, used to identify the RFID collar worn by the cat. The litter bin of the automatic litter replenishment system 8 is connected to the inner cavity of the cylinder 1 through a feeding channel, and the rotating feeding component in the channel replenishes cat litter in a controlled manner. The control module is integrated inside the mounting bracket 7 and is electrically connected to the identification module 5, the weighing module 6, the drive mechanism 2, and the automatic litter replenishment system 8. Its built-in wireless communication unit uploads the cat's identity and excrement weight data to a cloud server.

[0021] Working Process: When a cat wearing an RFID collar enters the container 1, the identification module 5 immediately reads its identity information. During the cat's defecation process, the weighing module 6 dynamically monitors the weight change of the container and records the weight difference after defecation. As the container 1 rotates continuously at a low speed, the filter plate 3 scrapes the feces and cat litter mixture along the container wall. The cat litter is filtered through the mesh of the filter screen 31 and falls back to the bottom of the container. The feces move with the filter screen 31. When the filter screen 31 rotates beyond the horizontal position, large clumps of cat litter and feces roll down into the collection component 32 due to gravity. Because there is an angle between the collection component 32 and the discharge port 41, the large clumps of cat litter and feces continue to roll down along the collection component 32 to the discharge port 41 and are discharged into the feces collection trough 4. When the weighing module 6 detects a decrease in the total amount of cat litter, the control module activates the rotating feeder to replenish the litter. The entire process requires no manual intervention, achieving fully automatic cleaning and health monitoring in multi-cat shared scenarios.

[0022] The filter screen 31 and the collection element 32 work together in a split design of the filter plate 3 to achieve dynamic sieving while the cylinder 1 rotates at a constant low speed: the filter screen 31 separates cat litter and fecal clumps in real time, and when it rotates to a horizontal position, the clumps automatically roll off into the collection element 32 due to gravity; the inclination angle of the collection element 32 and the fecal discharge port 41, combined with the centrifugal force of the cylinder rotation, guides the feces to be accurately discharged into the fecal collection trough 4. This process does not require stopping the machine to wait for the cat to leave, solving the problem of fecal retention caused by frequent interruptions in traditional equipment in high-frequency use scenarios with multiple cats, and improving cleaning efficiency.

[0023] The identification module 5 uses RFID technology to bind the cat's identity in real time, while the weighing module 6 uses symmetrically arranged sensors to accurately detect the difference in weight between excrement and feces. The control module simultaneously integrates the data and uploads it to the cloud via wireless communication. This forms a complete monitoring chain of "individual identification → excrement quantification → cloud analysis," helping cat cafes and breeding farms quickly detect abnormal health conditions in their groups, such as parasite infections and urinary tract diseases, and reducing the cost of manual inspections.

[0024] The friction wheel 22 of the drive mechanism 2 avoids the risk of gear jamming through contact transmission, and the continuous and uniform rotation of the cylinder 1 minimizes the shearing force of the filter plate 3 on the cat litter; the pull-out design of the transparent feces collection trough 4 makes it easy to observe and clean, avoiding the bacterial growth problem of traditional hidden feces collection troughs.

Claims

1. A smart litter box, comprising a cylinder (1) for holding cat litter mounted on a mounting frame (7) and a drive mechanism (2), characterized in that: A filter plate (3) for separating cat litter clumps is fixed on the inner wall of the cylinder (1). The axis of the filter plate (3) is set at an angle to the horizontal plane. The cylinder (1) is driven to rotate at a constant speed by a drive mechanism (2). A feces discharge port (41) for discharging cat litter clumps is provided on the surface of the cylinder (1) at a position corresponding to the filter plate (3). A feces collection trough (4) is provided below the feces discharge port (41). The feces collection trough (4) is located outside the cylinder (1). It also includes an identification module (5), a weighing module (6), and a control module that are electrically connected.

2. The intelligent cat litter box according to claim 1, characterized in that: The filter plate (3) consists of a filter screen (31) for filtering cat litter and a collection element (32); the collection element (32) is set at an angle to the discharge port (41) to guide the filtered material to the discharge port (41) for discharge.

3. The intelligent litter box according to claim 1, characterized in that: The drive mechanism (2) includes a motor (21) and a friction wheel (22), and the wheel surface of the friction wheel (22) contacts the friction layer on the outer circumference of the cylinder (1) for transmission.

4. The intelligent litter box according to claim 1, characterized in that: The manure collection trough (4) is made of transparent material and can be pulled out and installed on the side of the mounting frame (7) via a sliding rail structure.

5. The intelligent cat litter box according to claim 1, characterized in that: The weighing module (6) includes two or more weighing sensors, which are evenly distributed on the load-bearing part of the mounting bracket (7) at the bottom of the cylinder (1).

6. The intelligent cat litter box according to claim 1, characterized in that: The identification module (5) is a passive RFID reader, which is installed on the mounting bracket (7) at the entrance of the cylinder (1).

7. The intelligent cat litter box according to claim 1, characterized in that: It also includes an automatic sand replenishment system (8), which includes a sand storage bin and a feeding channel connecting the sand storage bin and the inner cavity of the cylinder (1). The feeding channel is equipped with a rotating material feeding component; the automatic sand replenishment system (8) is electrically connected to the control module.

8. The intelligent litter box according to claim 1, characterized in that: The control module is electrically connected to the identity recognition module (5), the weighing module (6), and the drive mechanism (2); the control module includes a wireless communication unit for uploading weight data and identity information to a cloud server.

9. The intelligent litter box according to claim 1, characterized in that: The cylinder (1) is cylindrical or frustum-shaped.