A litter box structure for cleaning litter and feces in the same direction and a cat litter box

Abstract

This application discloses a litter box structure with unidirectional litter cleaning and waste removal, and a cat litter box, relating to the field of pet supplies technology. The unidirectional litter box structure includes a litter box body, a litter cleaning component, and a control device. The litter cleaning component is detachably installed within the litter box body and is used to separate litter clumps from the litter. The control device is connected to the litter box body and is configured to control the litter box body to rotate in the litter cleaning direction upon receiving a litter cleaning control signal, wherein the litter cleaning direction is consistent with the waste removal direction. The designed unidirectional litter box structure can reduce the risk of cats getting pinched while improving litter cleaning efficiency and reducing litter residue.

Description

Technical Field

[0001] This application relates to the field of pet supplies technology, and in particular to a litter box structure with unidirectional litter cleaning and a cat toilet. Background Technology

[0002] In the modern home pet care industry, automatic cat litter boxes are widely popular due to their convenience and hygiene. These litter boxes are typically equipped with automatic litter emptying functions, significantly reducing the cleaning burden on pet owners. In existing automatic cat litter box designs, the function of emptying feces and litter is usually accomplished by rotating the litter bin.

[0003] There are two main methods for cleaning litter boxes. The first involves installing a non-perforated cleaning plate on a perforated filter plate, then rotating the litter box in the same direction as the litter box during cleaning. After cleaning, the cleaning plate is removed. This method ensures that both litter box cleaning and litter box cleaning occur in the same direction, meaning the risk of trapping the cat only exists in that direction. While this method has a lower risk, the varying forms of commercially available cat litter and the unavoidable gaps between the cleaning plate, filter plate, and litter box walls due to their removability lead to incomplete cleaning, often leaving litter residue. The second method does not use a cleaning plate; it simply controls the litter box to rotate in the opposite direction to the litter box rotation. This method allows the litter box 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 design.

[0004] Therefore, there is an urgent need to design a new solution that can reduce the risk of cats getting caught while improving sand removal efficiency and reducing sand residue. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a litter box structure with unidirectional litter cleaning and a cat toilet, which can reduce the risk of cats getting caught while improving litter cleaning efficiency and reducing litter residue.

[0006] To achieve the above technical objectives, this application provides a sand cleaning and purifying commutative sand bin structure, including a sand bin body, sand cleaning components, and a control device;

[0007] The sand cleaning component is detachably installed in the litter box body and is used to separate the sand-covered feces from the cat litter.

[0008] The control device is connected to the sand silo body and is configured to control the sand silo body to rotate in the sand cleaning direction when receiving a sand cleaning control signal, wherein the sand cleaning direction is consistent with the defecation cleaning direction.

[0009] Furthermore, the control device includes an execution module and a control module;

[0010] The execution module is connected to the sand silo body and is used to drive the sand silo body to rotate;

[0011] The control module is electrically connected to the execution module.

[0012] Furthermore, the control module is a button module.

[0013] Furthermore, the sand-cleaning control signal is a long press signal.

[0014] Furthermore, the sand cleaning assembly includes a sand baffle plate and a sand filter plate;

[0015] The sand baffle plate is integrally connected to the sand filter plate and is detachably connected to the sand hopper body.

[0016] Furthermore, the sand baffle plate is provided with a first positioning structure and a first locking structure;

[0017] The sand silo body is provided with a second positioning structure and a second locking structure;

[0018] The first positioning structure can be positioned and cooperated with the second positioning structure;

[0019] When the first positioning structure and the second positioning structure are positioned and engaged, the first locking structure can be locked to the second locking structure.

[0020] Furthermore, the sand bin body is provided with an mounting flange;

[0021] The mounting flange is folded to have a stop flange;

[0022] The stop flange can contact and abut against the side of the sand baffle plate away from the filter sand plate;

[0023] The second positioning structure is located on the mounting flange.

[0024] Furthermore, the first positioning structure includes a positioning protrusion;

[0025] The second positioning structure includes a positioning hole through which the positioning protrusion moves.

[0026] Furthermore, the first positioning structure also includes a claw;

[0027] The second positioning structure also includes a locking hole through which the claw moves;

[0028] When the first locking structure and the second locking structure are locked together, the end of the claw can contact and abut against the mounting flange.

[0029] Furthermore, the first locking structure is a first snap-fit ​​structure;

[0030] The second locking structure is a second snap-fit ​​structure that engages with the first snap-fit ​​structure.

[0031] Furthermore, the sand baffle plate is provided with a snap-fit ​​mounting part;

[0032] The mounting flange is provided with a notch to avoid the buckle mounting part;

[0033] The first locking structure is rotatably mounted on the buckle mounting part, and a first fastening part is provided thereon;

[0034] The second locking structure is installed on the sand hopper body at the position corresponding to the notch, and it is provided with a second fastening part that engages with the first fastening part.

[0035] This application also discloses a cat litter box, including a base, a waste collection chamber, and the aforementioned sand and waste removal unidirectional sand chamber structure;

[0036] The sand hopper body of the sand cleaning and defecation co-directional sand hopper structure is rotatably installed on the top of the base;

[0037] The top of the base is provided with a recess for the bottom of the sand hopper body to extend into;

[0038] A uniform rotational gap is formed between the inner wall of the concave cavity and the sand chamber;

[0039] The bottom of the cavity is provided with a collection port;

[0040] The waste collection chamber is located below the base and is connected to the collection port.

[0041] As can be seen from the above technical solutions, the sand-cleaning and waste-cleaning co-directional sand bin structure designed in this application has the following beneficial effects:

[0042] 1. The sand cleaning component is designed to be detachable from the sand chamber body. This allows the sand cleaning component to be removed as a whole before sand cleaning. Since the removal or installation of the sand cleaning component requires manual operation, it can ensure that personnel are present during the sand cleaning process, thereby reducing the risk of the cat getting caught during the rotating sand cleaning process.

[0043] 2. The sand and toilet cleaning directions are designed to be in the same direction, which can reduce the setting of control programs and reduce costs.

[0044] 3. The sand cleaning components are designed to be detachable as a whole, which avoids incomplete sand cleaning due to gaps between some sand cleaning components and the main body of the sand chamber during sand cleaning operations, thereby improving sand cleaning efficiency and reducing sand residue. Attached Figure Description

[0045] 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.

[0046] Figure 1 A first-view perspective perspective view of a sand-cleaning and waste-cleaning unidirectional sand bin structure provided in this application;

[0047] Figure 2 This is a second-view perspective perspective view of a sand-cleaning and waste-cleaning unidirectional sand bin structure provided in this application;

[0048] Figure 3 for Figure 2 Enlarged diagram of position A in the diagram;

[0049] Figure 4 This is a perspective view of a sand-cleaning and facilitating sand-cleaning silo structure without a sand-blocking plate, as provided in this application.

[0050] Figure 5 for Figure 4 Enlarged diagram of position B in the diagram;

[0051] Figure 6 This is a perspective view of a sand cleaning component with a co-directional sand cleaning chamber structure provided in this application;

[0052] Figure 7 for Figure 6 Enlarged diagram of position C in the diagram;

[0053] Figure 8 A three-dimensional view of the cat litter box provided in this application;

[0054] Figure 9 A perspective view of the base of the cat litter box provided in this application;

[0055] In the diagram: 1. Sand chamber body; 11. Mounting flange; 12. Stop flange; 13. Second positioning structure; 131. Positioning hole; 132. Locking hole; 14. Second locking structure; 141. Second fastening part; 15. Notch; 2. Sand cleaning assembly; 21. Sand baffle plate; 22. Sand filter plate; 23. First positioning structure; 231. Positioning protrusion; 232. Claw; 24. First locking structure; 25. Snap-on mounting part; 3. Control device; 31. Execution module; 311. Transmission assembly; 312. Rotary motor; 32. Control module; 321. Button component; 322. Main board; 4. Base; 41. Cavity; 42. Collection port; 43. Support leg; 5. Waste collection chamber. Detailed Implementation

[0056] 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.

[0057] 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.

[0058] 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.

[0059] This application discloses a unidirectional litter box structure for cleaning litter and feces, as well as a cat litter box.

[0060] Please see Figure 1 An embodiment of a sand-cleaning and waste-cleaning co-directional sand silo structure provided in this application includes:

[0061] 1. Sand bin body, 2. Sand cleaning components, and 3. Control device.

[0062] The litter cleaning component 2 is detachably installed inside the litter box body 1 to separate litter clumps from cat litter; the control device 3 is connected to the litter box body 1 and is configured to control the litter box body 1 to rotate in the litter cleaning direction when receiving a litter cleaning control signal, wherein the litter cleaning direction is consistent with the litter cleaning direction.

[0063] The sand-cleaning and waste-cleaning co-directional sand bin structure designed in this application has the following beneficial effects:

[0064] 1. The sand cleaning component 2 is designed to be detachable from the sand chamber body 1. This allows the sand cleaning component 2 to be removed as a whole before sand cleaning. Since the removal or installation of the sand cleaning component 2 requires manual operation, it can ensure that personnel are present during the sand cleaning process, thereby reducing the risk of the cat getting caught during the rotating sand cleaning process.

[0065] 2. From a cost control perspective, on the one hand, the detachable connection avoids the need to replace the entire sand bin assembly due to partial damage, reducing maintenance costs. On the other hand, the unidirectional sand and dust removal design reduces the number of control program settings, making the equipment's control system simpler. This not only reduces software development and debugging costs but also decreases the probability of malfunctions caused by complex control programs, further reducing subsequent maintenance costs. Simultaneously, the simple structure and control program also help improve production efficiency and reduce production costs, thus making the product more competitive in the market.

[0066] 3. The sand cleaning component 2 is designed to be detachable as a whole, so as to avoid incomplete sand cleaning due to gaps between the non-detachable sand cleaning component 2 and the sand chamber body 1 during sand cleaning operations, thereby improving sand cleaning efficiency and reducing sand residue.

[0067] The above is Embodiment 1 of a co-directional sand silo structure for sand and waste removal provided in this application. The following is Embodiment 2 of a co-directional sand silo structure for sand and waste removal provided in this application. Please refer to the following for details. Figures 1 to 8 .

[0068] Based on the solution of Embodiment 1 above:

[0069] Furthermore, such as Figure 1 As shown, the control device 3 includes an execution module 31 and a control module 32; the execution module 31 is connected to the sand silo body 1 and is used to drive the sand silo body 1 to rotate; the control module 32 is electrically connected to the execution module 31.

[0070] The aforementioned execution module 31 may include a transmission component 311 (such as a gear assembly) and a rotary motor 312. The rotary motor 312 drives the sand chamber to rotate through the transmission component 311. This drive design is an existing drive method, and will not be described in detail.

[0071] Furthermore, such as Figure 1 As shown, control module 32 is a button module. The button module is an existing button module, comprising a button component 321 and a main board 322. The button component 321 is connected to the main board 322 and is exposed for user pressing. The main board 322 is connected to the rotary motor 312 to control its operation. The main board 322 can be a conventional PLC board or a microprocessor; there are no specific limitations.

[0072] Furthermore, the litter cleaning control signal is a long-press signal. This application designs the control module 32 as a button module and configures it to require a long press to execute the litter cleaning mode. This further reduces the risk of the cat getting caught, because by 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 body 1 or its paws reach between the litter box body 1 and the base 4, stopping the button press will stop the litter cleaning, preventing the cat from getting caught. 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 holding down the button to achieve a continuous pressing action, such as holding down the button to rotate the litter box.

[0073] Furthermore, such as Figure 6 As shown, the sand cleaning component 2 includes a sand baffle plate 21 and a sand filter plate 22; the sand baffle plate 21 and the sand filter plate 22 are integrally connected and detachably connected to the sand hopper body 1.

[0074] This design allows for the simultaneous removal of the sand baffle 21 and filter plate 22 from the litter box body 1 during sand cleaning. After removal, the sand cleaning mode can be activated by pressing and holding the button component 321. Because the sand baffle 21 and filter plate 22 can be removed together, litter residue can be prevented from remaining in the gaps between the sand baffle 21 and filter plate 22 and the litter box body 1 during the cleaning process, further improving the cleaning effect.

[0075] Furthermore, since the sand cleaning component 2 has been removed, the sand cleaning process is not limited by the sand baffle 21 and the sand filter 22. This allows the sand chamber to rotate in the same direction as the sand chamber in the defecation cleaning mode. Moreover, the start and stop of the defecation cleaning and sand cleaning modes can be controlled by a single button with different control logic (such as manual double-clicking of button component 321 in the defecation cleaning mode or remote control of automatic defecation cleaning, etc., without any specific restrictions). 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.

[0076] Furthermore, such as Figures 4 to 6 As shown, for the detachable connection design, this application provides a first positioning structure 23 and a first locking structure 24 on the sand baffle 21; and a second positioning structure 13 and a second locking structure 14 on the sand chamber body 1.

[0077] The first positioning structure 23 can be positioned and engaged with the second positioning structure 13; when the first positioning structure 23 and the second positioning structure 13 are positioned and engaged, the first locking structure 24 can be locked and connected with the second locking structure 14.

[0078] With this positioning and locking structure design, when installing the sand cleaning component 2, the operator can first use the positioning cooperation of the first positioning structure 23 and the second positioning structure 13 to quickly and accurately place the sand baffle 21 into the correct position on the sand hopper body 1, improving the efficiency and accuracy of installation. After positioning is completed, the locking connection of the first locking structure 24 and the second locking structure 14 ensures the stability and reliability of the connection between the sand baffle 21 and the sand hopper body 1, preventing the sand baffle 21 from loosening or shifting during normal operation of the equipment.

[0079] Furthermore, this detachable connection method facilitates subsequent maintenance and replacement. If the sand baffle 21 or filter sand plate 22 becomes damaged or requires cleaning after long-term use, the operator can easily disengage the first locking structure 24 from the second locking structure 14 and remove the sand cleaning component 2 from the sand chamber body 1 for appropriate processing. Moreover, when replacing a new sand cleaning component 2, the positioning and locking structures can also be used to quickly complete the installation, reducing downtime.

[0080] Furthermore, such as Figures 2 to 4 As shown, the sand bin body 1 is provided with an installation flange 11; the installation flange 11 is folded to form a stop flange 12; the stop flange 12 can contact and abut against the side of the sand baffle plate 21 away from the filter sand plate 22; the second positioning structure 13 is provided on the installation flange 11.

[0081] The design of the mounting flange 11 and the stop flange 12 further enhances the stability of the sand cleaning assembly 2 during installation. The stop flange 12 abuts against the sand baffle 21, which serves as a limiting installation, allowing operators to more clearly locate the positioning point when installing the sand cleaning assembly 2, thus improving installation efficiency. Moreover, the mounting flange 11 also facilitates the design of the second positioning structure 13.

[0082] Furthermore, such as Figures 5 to 6 As shown, the first positioning structure 23 includes a positioning protrusion 231; the second positioning structure 13 includes a positioning hole 131 through which the positioning protrusion 231 moves. The number of positioning protrusions 231 can be multiple (e.g., two), distributed at intervals. Correspondingly, there are multiple positioning holes 131, which correspond to the meaning of the positioning protrusions 231.

[0083] The positioning protrusion 231 and the positioning hole 131 work together to further and accurately determine the installation position of the sand baffle 21 on the sand chamber body 1. When the positioning protrusion 231 passes through the positioning hole 131, it is as if a precise coordinate has been set for the installation of the sand baffle 21, making the installation process smoother and more accurate. This design of multiple positioning protrusions 231 and positioning holes 131 also enhances the stability of the sand baffle 21 after installation, preventing the sand baffle 21 from shaking or shifting during use of the sand chamber body 1.

[0084] Furthermore, such as Figures 5 to 6 As shown, the first positioning structure 23 also includes a claw 232 (the claw 232 may be L-shaped, and there is no specific limitation); the second positioning structure 13 also includes a locking hole 132 through which the claw 232 moves; when the first locking structure 24 and the second locking structure 14 are locked together, the end of the claw 232 can contact and abut against the mounting flange 11.

[0085] The engagement of the claw 232 and the locking hole 132 further enhances the stability of the sand baffle 21 installation. When the claw 232 passes through the locking hole 132 and engages with the mounting flange 11 during locking, it is as if an additional fixing point is added to the sand baffle 21. Combined with the engagement of the positioning protrusion 231 and the positioning hole 131, the sand baffle 21 becomes more stable during the rotation of the sand chamber body 1 and is less prone to displacement.

[0086] Furthermore, such as Figure 3 , Figures 5 to 7 As shown, the first locking structure 24 is a first latching structure; the second locking structure 14 is a second latching structure that latches with the first latching structure. There are multiple first locking structures 24 (e.g., two) distributed at intervals, and correspondingly, there are multiple second latching structures that correspond one-to-one with the first latching structures.

[0087] This multi-clamp structure design ensures a tighter and more reliable connection between the sand baffle 21 and the sand hopper body 1. Multiple clamps are evenly distributed at the connection point between the sand baffle 21 and the sand hopper body 1, providing a more balanced tension during locking and preventing loosening due to uneven local stress. When the first and second clamp structures engage, it effectively prevents the sand baffle 21 from disengaging due to vibration or other external forces during the rotation of the sand hopper body 1.

[0088] Furthermore, such as Figure 2 as well as Figure 4 As shown, the sand baffle 21 is provided with a snap-fit ​​mounting part 25; the mounting flange 11 is provided with a notch 15 to avoid the snap-fit ​​mounting part 25; the first locking structure 24 is rotatably mounted on the snap-fit ​​mounting part 25, and is provided with a first fastening part; the second locking structure 14 is installed on the sand chamber body 1 at the position corresponding to the notch 15, and is provided with a second fastening part 141 that engages with the first fastening part. The first fastening part can be a claw part, and the second fastening part 141 can be a hook hole part for the claw part to engage.

[0089] This design allows the first locking structure 24 to rotate freely in the snap-fit ​​mounting part 25, facilitating the installation and removal of the sand cleaning component 2 by the operator. When installing the sand cleaning component 2, first align the positioning protrusion 231 with the positioning hole 131 and the claw 232 with the snap hole 132, then rotate the first locking structure 24 to engage the first snap-fit ​​part with the second snap-fit ​​part 141, thus achieving a secure connection between the sand baffle 21 and the sand chamber body 1. For disassembly, simply rotate the first locking structure 24 in the opposite direction to release the engagement, and the sand cleaning component 2 can be easily removed from the sand chamber body 1.

[0090] like Figure 8 as well as Figure 9 As shown, this application also discloses a cat toilet, including a base 4, a waste collection chamber 5, and a litter box structure with the same direction for cleaning and waste removal.

[0091] The sand hopper body 1, with its co-directional sand and feces cleaning structure, is rotatably mounted on top of the base 4. The top of the base 4 has a recess 41 into which the bottom of the sand hopper body 1 extends. A uniform rotational gap is formed between the inner wall of the recess 41 and the sand hopper. A collection port 42 is located at the bottom of the recess 41. The feces collection chamber 5 is positioned below the base 4 and communicates with the collection port 42. The bottom of the base 4 can also be a support leg 43 for providing support and fixation.

[0092] This litter box design allows for smoother and more stable rotation of the litter box body 1 on the base 4. The uniform rotation gap reduces friction between the litter box body 1 and the base 4 during rotation, lowering noise and extending the device's lifespan. When the litter box body 1 rotates to clean litter or feces, the litter-laden clumps and separated litter can smoothly fall into the waste collection tank 5 through the collection port 42. The control device 3 can be located on the base 4, with the button component 321 of the control module 32 protruding from the base 4 for operation.

[0093] The overall structural design of the cat toilet described above is an existing structural design, and will not be described in detail.

[0094] The foregoing has provided a detailed description of a litter box structure for cleaning litter and feces in the same direction as the litter box provided in this application. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the ideas of the embodiments of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A sand cleaning and de-ironing concurrent sand bin structure, characterized by, It includes the sand bin body (1), the sand cleaning assembly (2), and the control device (3); The sand cleaning component (2) is detachably installed inside the sand chamber body (1) to separate the sand-covered fecal clumps from the cat litter. The control device (3) is connected to the sand silo body (1) and is configured to control the sand silo body (1) to rotate in the sand cleaning direction when receiving a sand cleaning control signal, wherein the sand cleaning direction is consistent with the defecation cleaning direction.

2. The sand and waste cleaning concurrent sand bin structure according to claim 1, characterized in that, The control device (3) includes an execution module (31) and a control module (32); The execution module (31) is connected to the sand silo body (1) and is used to drive the sand silo body (1) to rotate; The control module (32) is electrically connected to the execution module (31).

3. The sand and waste cleaning concurrent sand bin structure according to claim 2, characterized in that, The control module (32) is a button module.

4. The sand and waste cleaning concurrent sand bin structure according to claim 3, characterized in that, The sand-cleaning control signal is a long press signal.

5. The sand and waste cleaning concurrent sand bin structure according to claim 1, characterized in that, The sand cleaning component (2) includes a sand baffle (21) and a sand filter (22); The sand baffle (21) is integrally connected with the sand filter plate (22) and is detachably connected with the sand hopper body (1).

6. The sand and waste cleaning concurrent sand bin structure according to claim 5, characterized in that, The sand baffle (21) is provided with a first positioning structure (23) and a first locking structure (24). The sand bin body (1) is provided with a second positioning structure (13) and a second locking structure (14). The first positioning structure (23) can be positioned and cooperated with the second positioning structure (13); When the first positioning structure (23) and the second positioning structure (13) are positioned and engaged, the first locking structure (24) can be locked and connected with the second locking structure (14).

7. The sand-cleaning and waste-removing unidirectional sand bin structure according to claim 6, characterized in that, The sand bin body (1) is provided with an installation flange (11); The mounting flange (11) is folded to have a stop flange (12); The stop flange (12) can contact and abut against the side of the sand baffle (21) away from the sand filter plate (22); The second positioning structure (13) is provided on the mounting flange (11).

8. The sand and waste cleaning concurrent sand bin structure according to claim 7, characterized in that, The first positioning structure (23) includes a positioning protrusion (231); The second positioning structure (13) includes a positioning hole (131) through which the positioning protrusion (231) moves.

9. The sand and waste cleaning concurrent sand bin structure according to claim 8, characterized in that, The first positioning structure (23) also includes a claw (232); The second positioning structure (13) also includes a locating hole (132) through which the claw (232) moves; When the first locking structure (24) and the second locking structure (14) are locked together, the end of the claw (232) can contact and abut against the mounting flange (11).

10. The sand and waste cleaning concurrent sand bin structure according to claim 7, characterized in that, The first locking structure (24) is a first snap-fit ​​structure; The second locking structure (14) is a second snap-fit ​​structure that engages with the first snap-fit ​​structure.

11. The sand and waste cleaning concurrent sand bin structure according to claim 10, characterized in that, The sand baffle (21) is provided with a snap-fit ​​mounting part (25); The mounting flange (11) is provided with a notch (15) to avoid the buckle mounting part (25); The first locking structure (24) is rotatably mounted on the buckle mounting part (25), and a first fastening part is provided thereon; The second locking structure (14) is installed on the sand bin body (1) at the position corresponding to the notch (15), and is provided with a second fastening part (141) that engages with the first fastening part.

12. A cat litter box, characterized in that, Includes a base (4), a feces collection chamber (5), and a sand-cleaning and feces-cleaning co-directional sand chamber structure as described in any one of claims 1 to 11; The sand silo body (1) of the sand silo structure is rotatably mounted on the top of the base (4); The top of the base (4) is provided with a recess (41) into which the bottom of the sand silo body (1) extends. A uniform rotational gap is formed between the inner wall of the cavity (41) and the sand bin; The bottom of the cavity (41) is provided with a collection port (42). The waste collection chamber (5) is located below the base (4) and is connected to the collection port (42).

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