A deodorizing main structure and a cat litter box

Abstract

This application discloses an odor-proof main structure and a cat litter box, relating to the field of pet product technology. The odor-proof main structure includes a litter bin and a base. The litter bin is rotatably mounted on the top of the base. The top of the base has a recessed cavity into which the bottom of the litter bin extends. A uniform rotational gap is formed between the inner wall of the recessed cavity and the litter bin. A collection port is located at the bottom of the recessed cavity. A sealing ring is installed at the bottom of the litter bin. The sealing ring is in sealed contact with the inner wall of the recessed cavity. When the litter bin is in its initial position, the projection outline of the sealing ring on the ground is outside the projection outline of the collection port on the ground. This odor-proof main structure effectively prevents odors from escaping from the litter bin, effectively reduces noise, and maintains a simple structure, facilitating disassembly and cleaning.

Description

Technical Field

[0001] This application relates to the field of pet product technology, and in particular to an odor-proof main structure and a cat toilet. Background Technology

[0002] In the modern home pet care industry, automatic litter boxes are widely popular due to their convenience and hygiene. These boxes typically feature automatic litter cleaning, significantly reducing the cleaning burden on pet owners. In existing automatic litter box designs, the function of cleaning feces and litter is usually accomplished by rotating the litter bin. During the cleaning process, the litter is filtered through a filter plate and remains in the space between the filter plate and the litter bin wall, while clumps of feces remain above the filter plate and then roll down into the collection bin. After cleaning, the litter bin rotates back to its initial position, and the litter returns to the bottom of the litter bin through the filter plate.

[0003] However, because the litter box needs to rotate on the base during cleaning, a gap inevitably exists between the litter box and the base. This gap allows odors from excrement in the collection chamber to easily escape, negatively impacting the home environment. To solve this problem, existing technologies typically incorporate an openable and closable sealed door on the collection chamber. For example, patent publication number CN219660633U describes a cat litter box that incorporates a waste tray sealing assembly on the waste tray's collection chamber to control the opening and closing of the collection chamber.

[0004] However, this design requires additional control and drive mechanisms to operate the sealing door, which not only complicates the structure but also increases the difficulty of disassembly and cleaning. Furthermore, frequent opening and closing actions may cause mechanical failure of the sealing door, affecting the long-term stability and reliability of the automatic litter box.

[0005] Therefore, there is an urgent need for an innovative solution that can effectively prevent odors from escaping from the waste collection chamber, while maintaining a simple structure, easy disassembly and cleaning, and reducing the risk of mechanical failure, thereby improving the overall performance of automatic cat toilets and the user experience. Utility Model Content

[0006] In view of this, the purpose of this application is to provide an odor-proof main structure and cat toilet that can effectively prevent odors from escaping from the waste collection chamber, while maintaining a simple structure, easy disassembly and cleaning, and reducing the risk of mechanical failure, thereby improving the overall performance of the automatic cat toilet and the user experience.

[0007] To achieve the above technical objectives, this application provides an odor-proof main structure, including a sand chamber and a base. The sand chamber is rotatably mounted on the top of the base. The top of the base is provided with a recess for the bottom of the sand chamber to extend into. A uniform rotation gap is formed between the inner wall of the recess and the sand chamber. A collection port is provided at the bottom of the recess.

[0008] A sealing ring is installed at the bottom of the sand silo;

[0009] The sealing ring makes a sealing contact with the inner wall of the cavity;

[0010] When the sand hopper is in its initial position, the projection outline of the sealing ring on the ground is positioned outside the projection outline of the collection port on the ground.

[0011] Furthermore, a ring of slots is provided at the bottom of the sand bin;

[0012] The sealing ring is fitted into the slot.

[0013] Furthermore, the sealing ring includes a connecting ring body and a sealing ring body;

[0014] The connecting ring is fixedly embedded in the slot;

[0015] The inner ring edge of the sealing ring is fixedly connected to the outer peripheral wall of the connecting ring, and its outer ring edge away from the connecting ring is in sealing contact with the inner wall of the cavity.

[0016] Furthermore, the thickness of the sealing ring is less than the thickness of the connecting ring.

[0017] Furthermore, the outer ring edge is provided with a rounded chamfer.

[0018] Furthermore, the sealing ring body has a tapered cross-section, and the inner diameter of the inner ring side of the sealing ring body is smaller than that of the outer ring side.

[0019] Furthermore, when the sand hopper is in its initial position, the sealing ring is sealed to the top of the inner wall of the cavity.

[0020] This application also discloses a cat toilet, including a waste collection chamber, a litter cleaning assembly, a control device, and the aforementioned odor-proof main structure;

[0021] The sand cleaning component is installed in the sand chamber of the odor-proof main structure and is used to separate the sand-covered fecal clumps from the cat litter.

[0022] The control device is installed on the base of the odor-proof main structure and connected to the sand chamber, and is used to control the rotation of the sand chamber;

[0023] The waste collection chamber is located below the base and is connected to the collection port of the base.

[0024] Furthermore, the control device includes an execution module and a control module;

[0025] The execution module is connected to the sand bin and is used to drive the sand bin to rotate;

[0026] The control module is electrically connected to the execution module and is configured to control the execution module to drive the sand bin to rotate in the sand cleaning direction when receiving a sand cleaning control signal. The sand cleaning direction is consistent with the defecation cleaning direction.

[0027] Furthermore, the sand cleaning assembly includes a sand baffle plate and a sand filter plate;

[0028] The sand baffle is integrally connected to the sand filter plate and is detachably connected to the sand hopper.

[0029] As can be seen from the above technical solutions, the odor-proof main structure designed in this application has the following beneficial effects:

[0030] 1. Effectively prevents odor escape: The sealing ring installed at the bottom of the sand chamber makes a sealed contact with the inner wall of the cavity. When the sand chamber is in its initial position, the projection outline of the sealing ring on the ground is positioned outside the projection outline of the collection port. This design forms a sealed barrier, which can effectively prevent odors in the collection chamber from escaping outward through the gap between the sand chamber and the cavity, creating a relatively fresh and odor-free environment for users.

[0031] 2. Effective noise reduction: The sealing ring is also designed to include a connecting ring body and a sealing ring body fixed to the middle position of the outer peripheral wall of the connecting ring body, with the thickness of the sealing ring body being smaller than that of the connecting ring body. This design reduces the contact area between the sealing ring body and the cavity, while providing more deformation space for the sealing ring body, effectively reducing contact friction between the sealing ring and the cavity during rotation, thereby further reducing noise.

[0032] 3. Simple Structure: The main odor-proof structure consists only of a sand chamber, a base, and a sealing ring between them, without complex parts or structural designs. This simple structure reduces manufacturing complexity and costs. The simplified composition also facilitates easier assembly and disassembly of components, making thorough cleaning of the sand chamber, base, and interior of the cavity more convenient, ensuring good hygiene, and facilitating the removal of dirt that may accumulate in crevices over time.

[0033] 4. Reduced risk of mechanical failure: Due to its simple overall structure and fewer moving parts and complex connections, the probability of mechanical failure caused by wear, loosening, or interference of parts is significantly reduced. This not only reduces maintenance costs and time but also improves the reliability and stability of the litter box, making it more worry-free for users.

[0034] 5. Enhanced Overall Performance and User Experience: Through a combination of factors, including effectively preventing odor escape, significantly reducing noise, maintaining a simple structure, facilitating disassembly and cleaning, and minimizing the risk of mechanical failure, the overall performance of automatic litter boxes is significantly improved. Users no longer need to frequently deal with odors, cleaning is quick and easy, and they don't have to worry about frequent malfunctions, resulting in a more comfortable, convenient, and satisfying user experience, increasing product recognition and loyalty. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a perspective view of an odor-proof main structure provided in this application;

[0037] Figure 2 A perspective view of the base of an odor-proof main structure provided in this application;

[0038] Figure 3 A perspective view of a sand silo, which is a main structure for preventing odors provided in this application;

[0039] Figure 4 This is a cross-sectional view of a sand chamber, which is part of an odor-proof main structure provided in this application.

[0040] Figure 5 for Figure 4 Enlarged diagram of position A in the diagram;

[0041] Figure 6 A cross-sectional view of the sealing ring of an odor-proof main structure provided in this application;

[0042] Figure 7 A perspective view of a cat litter box provided in this application;

[0043] Figure 8 This is a partial structural diagram of a cat toilet provided in this application;

[0044] In the diagram: 1. Base; 11. Cavity; 12. Collection port; 13. Support leg; 2. Sand chamber; 21. Slot; 3. Sealing ring; 31. Connecting ring; 32. Sealing ring; 4. Sand cleaning assembly; 41. Sand baffle; 42. Filter plate; 5. Control device; 51. Control module; 511. Button assembly; 512. Main board; 52. Execution module; 521. Motor; 522. Transmission assembly; 6. Waste collection chamber. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of this application.

[0046] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0048] This application discloses an odor-proof main structure.

[0049] Please see Figure 1 , Figure 2 as well as Figure 6 One embodiment of an odor-proof main structure provided in this application includes:

[0050] The sand hopper 2 and the base 1 are provided. The sand hopper 2 is rotatably mounted on the top of the base 1. The top of the base 1 has a cavity 11 into which the bottom of the sand hopper 2 extends. A uniform rotational gap is formed between the inner wall of the cavity 11 and the sand hopper 2. The bottom of the cavity 11 has a collection port 12. The overall structure of the sand hopper 2 and the base 1 can be designed or reused with reference to existing structures. For example, multiple support legs 13 can be added to the bottom of the base 1 to elevate the base 1 and facilitate the installation of the collection chamber 6. Specific details are not elaborated here.

[0051] The core design improvement in this application lies in:

[0052] A sealing ring 3 is installed at the bottom of the litter box 2; the sealing ring 3 is in sealed contact with the inner wall of the cavity 11; when the litter box 2 is in the initial position, the projection outline of the sealing ring 3 on the ground is outside the projection outline of the collection port 12 on the ground. The initial position refers to the state where the litter box 2 is at the bottom, and the pet can normally enter and exit and lie or defecate on the litter. In this initial position, the projection outline of the sealing ring 3 on the ground is outside the projection outline of the collection port 12 on the ground, which means that the sealing ring 3 is above the collection port 12 and larger than the collection port 12, so as to ensure that the rotation gap is completely sealed and to prevent the odor of the waste collection box 6 from escaping from the rotation gap when in the initial position.

[0053] The odor-proof main structure designed in this application has the following beneficial effects:

[0054] 1. Effectively prevents odor escape: The sealing ring 3 installed at the bottom of the sand chamber 2 is in sealed contact with the inner wall of the cavity 11. When the sand chamber 2 is in its initial position, the projection outline of the sealing ring 3 on the ground is positioned outside the projection outline of the collection port 12. This design forms a sealed barrier, which can effectively prevent odors in the waste collection chamber 6 from escaping outward through the gap between the sand chamber 2 and the cavity 11, creating a relatively fresh and odor-free user environment.

[0055] 2. Simple Structure: The main odor-proof structure consists only of a sand chamber 2, a base 1, and a sealing ring 3 between them, without complex parts or structural designs. This simple structure reduces manufacturing complexity and cost. The simple composition also facilitates easier assembly and disassembly of components, making it easier to thoroughly clean the sand chamber 2, base 1, and the interior of the cavity 11, ensuring good hygiene and facilitating the removal of dirt that may accumulate in crevices over time.

[0056] 3. Reduced risk of mechanical failure: Due to its simple overall structure and fewer moving parts and complex connections, the probability of mechanical failure caused by wear, loosening, or interference of parts is significantly reduced. This not only reduces maintenance costs and time but also improves the reliability and stability of the litter box, making it more worry-free for users.

[0057] 4. Enhanced Overall Performance and User Experience: Through a combination of factors, including effectively preventing odor escape, maintaining a simple structure, facilitating disassembly and cleaning, and reducing the risk of mechanical failure, the overall performance of automatic litter boxes is significantly improved. Users no longer need to frequently deal with odors, cleaning is convenient and quick, and they don't have to worry about frequent malfunctions, thus obtaining a more comfortable, convenient, and satisfactory user experience, increasing product recognition and loyalty.

[0058] The above is Embodiment 1 of an odor-proof main structure provided in this application. The following is Embodiment 2 of an odor-proof main structure provided in this application. Please refer to the following for details. Figures 1 to 7 .

[0059] Based on the solution of Embodiment 1 above:

[0060] Furthermore, such as Figures 2 to 4 As shown, the bottom of the sand bin 2 is provided with a groove 21; one end of the sealing ring 3 is embedded in the groove 21, and the other end abuts against the inner wall of the cavity 11.

[0061] This design allows the sealing ring 3 to be more securely installed at the bottom of the sand chamber 2, preventing it from falling off or shifting, thus further ensuring the sealing effect. At the same time, the presence of the groove 21 also provides a positioning reference for the sealing ring 3, making it easier for the sealing ring 3 to achieve sealing contact with the inner wall of the cavity 11 during installation, improving the convenience and accuracy of installation.

[0062] Furthermore, such as Figure 5 as well as Figure 6 As shown, the sealing ring 3 includes a connecting ring 31 and a sealing ring 32; the connecting ring 31 is embedded in the slot 21; the inner ring edge of the sealing ring 32 is fixedly connected to the outer peripheral wall of the connecting ring 31, and its outer ring edge away from the connecting ring 31 is in sealing contact with the inner wall of the cavity 11.

[0063] This design makes the structure of the sealing ring 3 more reasonable and stable. The connecting ring 31 provides the area for connection with the bottom of the sand chamber 2, increasing the stability of the installation; while the sealing ring 32 is specifically designed to achieve sealing contact with the inner wall of the cavity 11, ensuring the sealing effect.

[0064] The sealing ring 32 and the connecting ring 31 can be a one-piece molded design, which improves structural reliability and reduces assembly processes and costs.

[0065] Furthermore, the thickness of the sealing ring 32 is less than the thickness of the connecting ring 31. The relatively larger thickness of the connecting ring 31 provides better connection stability, while the smaller thickness of the sealing ring 32 reduces the contact friction with the cavity 11, thereby making the rotation of the sand chamber 2 smoother and reducing the noise generated by frictional contact.

[0066] The sealing ring 32 can be connected to the middle of the outer peripheral wall of the connecting ring 31, that is, the sealing ring 32 is not connected to the edge of the outer peripheral wall of the connecting ring 31, thereby reserving more deformation space for the sealing ring 32, further reducing the friction of the sand chamber 2 when changing the rotation direction and reducing noise.

[0067] In summary, the above design incorporates a connecting ring 31 and a sealing ring 32 fixed to the middle of the outer peripheral wall of the connecting ring 31, with the sealing ring 32 being thinner than the connecting ring 31. This design reduces the contact area between the sealing ring 32 and the cavity 11, while providing more deformation space for the sealing ring 32, effectively reducing contact friction between the sealing ring 3 and the cavity 11 during rotation, thus further reducing noise. (A conventional sealing ring that fits tightly against the cavity 11 without deformation space will experience greater friction with the cavity 11 during rotation, resulting in more noise.)

[0068] Furthermore, such as Figure 5 As shown, the outer ring edge has a rounded chamfer. This design makes the contact between the outer ring edge of the sealing ring 32 and the inner wall of the cavity 11 smoother, reducing wear caused by friction and extending the service life of the sealing ring 3. At the same time, the presence of the rounded chamfer also makes it easier for the sealing ring 3 to achieve a sealing contact with the inner wall of the cavity 11 during installation, improving the convenience of installation and the sealing effect.

[0069] Furthermore, such as Figure 6 As shown, the sealing ring 32 has a tapered cross section, and the inner diameter of the inner ring side of the sealing ring 32 is smaller than that of the outer ring side; it can be understood that the sealing ring 32 has a tapered design, that is, the overall shape is horn-shaped, with the inner ring side being the small diameter end and the outer ring side being the large diameter end.

[0070] Compared to the flat ring design, this conical ring design makes it easier for the sealing ring 32 to achieve tight contact with the inner wall of the cavity 11 during installation. Specifically, when rotation occurs, the sealing ring 32 with the conical ring design can produce uniform deformation when in contact with the cavity 11, ensuring that the sealing ring 32 is always in tight contact with the cavity 11, thereby further improving the sealing effect.

[0071] Furthermore, when the sand chamber 2 is in its initial position, the sealing ring 3 is sealed to the top of the inner wall of the cavity 11. Understandably, in the initial position, the sealing ring 3 is positioned approximately flush with (slightly below) the top of the cavity 11. This ensures that the sealing ring 3 fits as closely as possible to the inner wall of the cavity 11 with a larger circumference, resulting in a larger sealing ring 3. This also acts as a reinforcing rib for the sand chamber 2, enhancing its overall strength and making the parted sand chamber 2 less prone to deformation.

[0072] like Figure 7 as well as Figure 8 As shown, this application also discloses a cat toilet, including a feces collection chamber 6, a litter cleaning component 4, a control device 5, and the aforementioned improved odor-proof main structure.

[0073] The litter cleaning component 4 is installed inside the litter bin 2 of the odor-proof main structure to separate litter clumps from the cat litter. The control device 5 is installed on the base 1 of the odor-proof main structure and connected to the litter bin 2 to control the rotation of the litter bin 2. The feces collection bin 6 is located below the base 1 and communicates with the collection port 12 of the base 1.

[0074] Furthermore, the control device 5 includes an execution module 52 and a control module 51. The execution module 52 is connected to the sand chamber 2 and is used to drive the sand chamber 2 to rotate. The control module 51 can specifically be a button module, which is electrically connected to the execution module 52 and configured to control the execution module 52 to drive the sand chamber 2 to rotate in the sand cleaning direction when it receives a long press signal (sand cleaning control signal). The long press signal can be understood as one of the following two types of signals: 1. A signal triggered by a long press action for a certain period of time, such as a 3-second long press / 5-second long press; 2. A signal triggered by pressing and holding the button to achieve a continuous pressing action, such as pressing and holding the button to drive the sand chamber 2 to rotate.

[0075] There are two main methods for cleaning litter. The first method involves installing a non-perforated cleaning plate on a perforated filter plate 42, then rotating the litter box 2. The rotation direction of the litter box 2 is the same as the direction of litter cleaning. After cleaning, the cleaning plate is removed. This method ensures that both litter cleaning and litter removal occur in the same direction, meaning the risk of trapping the cat only exists in that direction. While this method has a lower risk of trapping, the varying forms of commercially available cat litter and the unavoidable gaps between the cleaning plate, filter plate 42, and litter box 2 walls due to their removability lead to incomplete cleaning, often leaving litter residue in the litter box 2. The second method does not use a cleaning plate; instead, the litter box 2 rotates in the opposite direction to the litter cleaning direction. This method allows the litter box 2 to rotate in two opposite directions. Although it cleans more thoroughly than the first method, leaving no litter residue, the risk of trapping the cat exists in both directions. Anti-pinch devices must be installed in both directions, resulting in a complex and costly structure.

[0076] This application designs the control module 51 as a button module and configures it to be pressed and held to execute the litter cleaning mode. This can further reduce the risk of the cat getting caught. When manually pressing and holding the button to clean the litter, the person next to the machine can observe the cat's position at any time. If the cat jumps into the litter box 2 or the cat's paws reach between the litter box 2 and the base 1, the litter cleaning will stop when the button is stopped, thus avoiding the cat getting caught.

[0077] The aforementioned execution module 52 may include a transmission assembly 522 (such as a gear assembly) and a rotary motor 521. The rotary motor 521 drives the sand chamber 2 to rotate via the transmission assembly 522. This drive design is an existing drive method and will not be described in detail. Similarly, the button module is an existing button module, which includes a button component 511 and a main board 512. The button component 511 is connected to the main board 512 and exposes the base 1 for user pressing operation. The main board 512 is connected to the rotary motor 521 to control the operation of the rotary motor 521. The main board 512 can be a conventional PLC board or a microprocessor, and there are no specific limitations.

[0078] Furthermore, the sand cleaning component 4 includes a sand baffle 41 and a sand filter 42; the sand baffle 41 and the sand filter 42 are integrally connected and detachably connected to the litter box 2. This design allows the sand baffle 41 and the sand filter 42 to be removed from the litter box 2 together during sand cleaning. After removal, the sand cleaning mode can be activated by pressing and holding the button component 511. Since the sand baffle 41 and the sand filter 42 can be removed together, litter residue can be prevented from remaining in the gaps between the sand baffle 41 and the sand filter 42 and the litter box 2 during the cleaning process, further improving the cleaning effect.

[0079] Furthermore, since the sand cleaning component 4 has been removed, the sand cleaning process is not limited by the sand baffle plate 41 and the sand filter plate 42. This allows the sand chamber 2 to rotate in the same direction as the sand chamber 2 in the defecation cleaning mode. Moreover, the defecation cleaning and sand cleaning modes can be started and stopped with just one button and different control logic (such as manual double-click button component 511 in the defecation cleaning mode or remote control automatic defecation cleaning, etc., no specific restrictions are imposed). This not only reduces the risk of the cat getting caught and ensures that there is no sand residue after cleaning, but also further simplifies the structural design.

[0080] The above provides a detailed description of an odor-proof main structure and a cat toilet provided in this application. For those skilled in the art, based on the ideas of the embodiments of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. The deodorizing main structure includes a sand chamber (2) and a base (1). The sand chamber (2) is rotatably installed on the top of the base (1). The top of the base (1) is provided with a cavity (11) into which the bottom of the sand chamber (2) extends. A uniform rotation gap is formed between the inner wall of the cavity (11) and the sand chamber (2). The bottom of the cavity (11) is provided with a collection port (12). characterized in that A sealing ring (3) is installed at the bottom of the sand bin (2); The sealing ring (3) is in sealing contact with the inner wall of the cavity (11); When the sand bin (2) is in its initial position, the projection outline of the sealing ring (3) on the ground is positioned outside the projection outline of the collection port (12) on the ground.

2. The odor-resistant host structure according to claim 1, characterized in that The bottom of the sand bin (2) is provided with a ring of slots (21); The sealing ring (3) is fitted into the slot (21).

3. The odor-proof main structure according to claim 2, characterized in that, The sealing ring (3) includes a connecting ring (31) and a sealing ring (32); The connecting ring (31) is fixed in the slot (21); The inner ring edge of the sealing ring (32) is fixedly connected to the outer peripheral wall of the connecting ring (31), and its outer ring edge away from the connecting ring (31) is in sealing contact with the inner wall of the cavity (11).

4. The odor-proof main structure according to claim 3, characterized in that, The thickness of the sealing ring (32) is less than the thickness of the connecting ring (31).

5. The odor-proof main structure according to claim 3, characterized in that, The outer ring edge is provided with a rounded chamfer.

6. The odor-proof main structure according to claim 3, characterized in that, The sealing ring body (32) has a tapered cross section, and the inner diameter of the inner ring side of the sealing ring body (32) is smaller than the inner diameter of the outer ring side.

7. The odor-proof main structure according to claim 1, characterized in that, When the sand bin (2) is in its initial position, the sealing ring (3) is sealed to the top of the inner wall of the cavity (11).

8. A cat litter box, characterized in that, It includes a fecal collection chamber (6), a sand cleaning assembly (4), a control device (5), and an odor-proof main structure as described in any one of claims 1 to 7; The sand cleaning component (4) is installed in the sand chamber (2) of the odor-proof main structure to separate the sand-covered fecal clumps from the cat litter. The control device (5) is installed on the base (1) of the odor-proof main structure and connected to the sand chamber (2) for controlling the rotation of the sand chamber (2); The waste collection chamber (6) is located below the base (1) and is connected to the collection port (12) of the base (1).

9. The cat litter box according to claim 8, characterized in that, The control device (5) includes an execution module (52) and a control module (51); The execution module (52) is connected to the sand bin (2) and is used to drive the sand bin (2) to rotate; The control module (51) is electrically connected to the execution module (52) and is configured to control the execution module (52) to drive the sand bin (2) to rotate in the sand cleaning direction when receiving the sand cleaning control signal, the sand cleaning direction being consistent with the defecation cleaning direction.

10. The cat litter box according to claim 8, characterized in that, The sand cleaning component (4) includes a sand baffle (41) and a sand filter (42). The sand baffle (41) is integrally connected to the sand filter plate (42) and is detachably connected to the sand bin (2).

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