Pet waste cleaning device and method of sand and feces cleaning

Abstract

A pet excrement cleaning device and a method for cleaning sand and excrement. The cleaning device comprises a sand bin structure, a cleaning assembly and a quick disassembly mechanism. The sand bin structure is configured to rotate around a rotation axis, and the quick disassembly mechanism comprises a locked state for fixing the sand bin structure and a blocking structure and an unlocked state for allowing the sand bin structure and the blocking structure to be separated. In the locked state, the cleaning assembly forms a temporary storage cavity with the containing section, and in response to a first cleaning signal, the sand bin structure rotates around the rotation axis in a preset rotation direction, so that the pet sand enters the temporary storage cavity, and the excrement is screened out through the screening of the screening structure and is discharged from the discharge opening. In the unlocked state, the cleaning assembly is configured to be located outside the sand bin structure; in response to a second cleaning signal, the sand bin structure rotates around the rotation axis in the same preset rotation direction to at least discharge the pet sand from the discharge opening. The safety of the cleaning device is higher, and the sand cleaning effect is better.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202521653392.1, filed on August 5, 2025, and Chinese Patent Application No. 202521673971.2, filed on August 7, 2025, the disclosures of which are incorporated herein by reference in their entirety. Technical Field

[0003] At least one embodiment of this disclosure relates to a pet excrement cleaning device and a method for cleaning sand and feces. Background Technology

[0004] Cleaning devices such as automatic litter boxes offer advantages such as convenience and cleanliness, making it easy for users to clean up their pets' waste. However, the thoroughness of cleaning and the safety of using these devices need improvement. Summary of the Invention

[0005] This disclosure provides at least one embodiment of a pet excrement cleaning device and a method for cleaning sand and feces.

[0006] At least one embodiment of this disclosure provides a pet excrement cleaning device, comprising: a litter box structure configured to rotate about a rotation axis; the inner sidewall of the litter box structure including a receiving section and a discharge opening arranged circumferentially along the rotation axis, the receiving section being configured to receive pet litter, and the discharge opening being configured to allow pet litter and excrement to be discharged; a cleaning assembly including a blocking structure and a screening structure connected to each other, the blocking structure being configured to be detachably connected to the litter box structure; wherein the cleaning device further includes a quick-release mechanism, which includes a locking state fixing the litter box structure to the blocking structure and a state allowing the litter box to be discharged. In the unlocked state, the structure is separated from the blocking structure; in the locked state, the cleaning component and the receiving section form a temporary storage cavity; in response to a first cleaning signal, the litter box structure rotates about the rotation axis in a preset rotation direction, causing the pet litter to enter the temporary storage cavity and be sieved out by the screening structure and discharged from the discharge opening; in the unlocked state, the cleaning component is configured to be located outside the litter box structure; in response to a second cleaning signal, the litter box structure rotates about the rotation axis in the same preset rotation direction to at least discharge the pet litter from the discharge opening.

[0007] For example, according to at least one embodiment of this disclosure, in the locked state, the quick-release mechanism is located on the outer wall of the sand hopper structure.

[0008] For example, according to at least one embodiment of this disclosure, the blocking structure includes a first mounting portion located on the side edge of the blocking structure away from the screening structure; the sand hopper structure includes a second mounting portion located on the edge of the discharge opening; in the locked state, the quick-release mechanism locks the first mounting portion and the second mounting portion; in the unlocked state, the quick-release mechanism unlocks the first mounting portion and the second mounting portion to allow the sand hopper structure to be separated from the cleaning assembly.

[0009] For example, according to at least one embodiment of this disclosure, the quick-release mechanism includes a snap-fit ​​component, the snap-fit ​​component including a first snap-fit ​​structure and a second snap-fit ​​structure disposed opposite to each other in a first direction; wherein the first snap-fit ​​structure is rotatably connected to the first mounting portion to allow the quick-release mechanism to switch between a locked state and an unlocked state; in the locked state, the second snap-fit ​​structure is snapped into the second mounting portion; in the unlocked state, the second snap-fit ​​structure is separated from the second mounting portion.

[0010] For example, according to at least one embodiment of the present disclosure, the thickness of the second snap-fit ​​structure gradually decreases along a direction parallel to the first direction and along the direction from the first snap-fit ​​structure to the second snap-fit ​​structure.

[0011] For example, according to at least one embodiment of the present disclosure, the outer wall of the sand silo structure includes a recessed structure located on the side of the second mounting portion away from the discharge opening; the recessed structure is configured to accommodate at least a portion of the second snap-fit ​​structure, and there is a gap between the recessed structure and the surfaces of the second snap-fit ​​structure facing each other.

[0012] For example, according to at least one embodiment of this disclosure, the blocking structure and the screening structure are integrally formed.

[0013] For example, according to at least one embodiment of this disclosure, the blocking structure and the screening structure are configured to be detachably connected.

[0014] For example, according to at least one embodiment of the present disclosure, the cleaning device includes a first magnetic member and a second magnetic member; the first magnetic member is located on the side edge of the blocking structure away from the screening structure, and the second magnetic member is located on the side of the sand hopper structure near the discharge opening; the first magnetic member and the second magnetic member are magnetically attached to each other so that the blocking structure and the sand hopper structure are positioned relative to each other.

[0015] For example, according to at least one embodiment of the present disclosure, the cleaning device further includes a support frame and a receiving element; wherein the litter bin structure is rotatably connected to the support frame, the support frame surrounding a receiving opening of the receiving element; the litter bin structure is configured to rotate along the preset rotation direction until the discharge opening communicates with the receiving opening, so that at least one of the excrement and the pet litter enters the receiving element.

[0016] For example, according to at least one embodiment of the present disclosure, the cleaning device further includes a first detection element mounted on the support frame; wherein the first detection element is configured to brake the sand hopper structure when a target object is detected.

[0017] For example, according to at least one embodiment of this disclosure, the cleaning device further includes a button mounted on the support frame; wherein the second cleaning signal is configured to be generated only by triggering the button.

[0018] For example, according to at least one embodiment of this disclosure, a first cleanup signal is generated in response to triggering the button in a first mode; a second cleanup signal is generated in response to triggering the button in a second mode; the first mode is different from the second mode.

[0019] For example, according to at least one embodiment of this disclosure, the first mode includes a first trigger time, and the second mode includes a second trigger time; the duration of the first trigger time is less than a preset trigger duration, and the duration of the second trigger time is not less than the preset trigger duration.

[0020] For example, according to at least one embodiment of this disclosure, the cleaning device further includes a second detection element mounted on the support frame; wherein, in response to the second detection element detecting that the excrement has reached a preset detection time and detecting that there is no target object in the sand silo structure, the first cleaning signal is generated.

[0021] At least one embodiment of this disclosure provides a method for cleaning pet litter and feces using a cleaning device according to the above embodiments, comprising: fixing the cleaning component to the litter box structure via the quick-release mechanism; controlling the litter box structure to rotate around the rotation axis in the preset rotation direction in response to a first cleaning signal, so that the pet litter enters the temporary storage cavity and the excrement is screened out by the screening structure and discharged from the discharge opening; unlocking the cleaning component from the litter box structure via the quick-release mechanism and moving the cleaning component out of the litter box structure; controlling the litter box structure to rotate around the rotation axis in the same preset rotation direction in response to a second cleaning signal, so as to at least discharge the pet litter in the litter box structure from the discharge opening. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0023] Figure 1 This is a schematic diagram of a cleaning apparatus provided as an example in at least one embodiment of the present disclosure.

[0024] Figure 2 for Figure 1 A schematic diagram of the explosion of the cleaning device shown.

[0025] Figure 3 for Figure 1 A cross-sectional view of the cleaning device shown.

[0026] Figure 4 for Figure 1 A magnified view of a portion of point P1 is shown.

[0027] Figure 5 and Figure 6 for Figure 1 The diagram shows partial explosions of the sand hopper structure, blocking structure, and quick-assembly mechanism in the cleaning device from different perspectives.

[0028] Figure 7 This is a schematic diagram of a snap-fit ​​component in a cleaning device provided in at least one embodiment of the present disclosure.

[0029] Figure 8 and Figure 9 This is a schematic diagram of the cleaning components and quick-release mechanism of the cleaning device provided in at least one embodiment of the present disclosure.

[0030] Figure 10 This is a schematic diagram of the screening structure in a cleaning apparatus provided in at least one embodiment of the present disclosure.

[0031] Figure 11 This is a schematic diagram of the blocking structure and the first magnetic element in a cleaning device provided in at least one embodiment of the present disclosure.

[0032] Figure 12 This is a schematic diagram of the sand chamber structure and the second magnetic element in a cleaning device provided in at least one embodiment of the present disclosure.

[0033] Figure 13 This is a schematic diagram of a cleaning apparatus provided as an example in at least one embodiment of the present disclosure.

[0034] Figure 14 This is a schematic flowchart illustrating a method for cleaning sand and feces provided in at least one embodiment of the present disclosure. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0036] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0037] The terms "parallel," "perpendicular," and "identical" as used in this disclosure include the strictly defined meanings of "parallel," "perpendicular," and "identical," as well as terms such as "approximately parallel," "approximately perpendicular," and "approximately identical," which include a certain degree of error. Taking into account measurement and errors associated with the measurement of a specific quantity (i.e., limitations of the measurement system), they represent acceptable deviations for a specific value as determined by a person skilled in the art. In embodiments of this disclosure, "center" can include a strictly defined location at the geometric center as well as a location approximately at the center within a small area surrounding the geometric center. For example, "approximately" can mean within one or more standard deviations, or within 10% or 5% of the value.

[0038] Some cleaning devices, such as automatic litter boxes, have functions for cleaning up feces and cleaning up litter. The feces cleaning function works by rotating the litter box, allowing the excrement inside to be sifted out of the litter box by a filter plate and discharged outside the litter box. The litter cleaning function works by rotating the litter box, allowing the litter inside to be discharged outside the litter box.

[0039] In some automatic litter boxes, the litter guard and litter bin are integrally injection molded, allowing the space between them to store litter during cleaning. One method for litter cleaning is to install a cleaning baffle on the filter plate. The litter bin can rotate in the same direction for both cleaning and waste removal, and the user can remove the cleaning baffle after cleaning. However, due to the addition of more parts (e.g., the cleaning baffle), gaps between these parts can lead to litter residue. Furthermore, the varying shapes of litter make it difficult to improve the incomplete cleaning by modifying the structure of the cleaning baffle or other parts. Another method is to have the litter bin rotate in the opposite direction to the waste removal bin. This method eliminates the need for a cleaning baffle but increases the potential for the pet to get trapped. Additionally, because the litter guard and litter bin are not removable, cleaning the device becomes more difficult, and the litter bin itself has many blind spots and hard-to-clean areas, making thorough cleaning challenging.

[0040] At least one embodiment of this disclosure provides a pet excrement cleaning device. The cleaning device includes a litter box structure, a cleaning assembly, and a quick-release mechanism. The litter box structure is configured to rotate about a rotation axis, and its inner sidewall includes a receiving section and a discharge opening circumferentially disposed along the rotation axis. The receiving section is configured to receive pet litter, and the discharge opening is configured to allow pet litter and excrement to be discharged. The cleaning assembly includes a blocking structure and a sieving structure connected to each other. The blocking structure is configured to be detachably connected to the litter box structure. The quick-release mechanism includes a locking state that secures the litter box structure to the blocking structure and an unlocking state that allows the litter box structure to separate from the blocking structure. In the locked state, the cleaning assembly and the receiving section form a temporary storage cavity. In response to a first cleaning signal, the litter box structure rotates about the rotation axis in a preset rotation direction, causing pet litter to enter the temporary storage cavity and excrement to be sieved by the sieving structure and discharged from the discharge opening. In the unlocked state, the cleaning assembly is configured outside the litter box structure; in response to a second cleaning signal, the litter box structure rotates about the rotation axis in the same preset rotation direction to discharge at least pet litter from the discharge opening.

[0041] At least one embodiment of this disclosure provides a method for cleaning pet litter and feces using a cleaning device. The method includes: fixing a cleaning component to a litter box structure via a quick-release mechanism; responding to a first cleaning signal, controlling the litter box structure to rotate around a rotation axis in a preset rotation direction, causing pet litter to enter a temporary storage chamber; and screening out excrement through a screening structure and discharging it from a discharge opening. The cleaning component is then unlocked from the litter box structure via the quick-release mechanism and moved outside the litter box structure. Responding to a second cleaning signal, the litter box structure is then controlled to rotate around a rotation axis in the same preset rotation direction, so as to at least discharge pet litter from the litter box structure from the discharge opening.

[0042] In the pet excrement cleaning device and litter cleaning method provided in at least one embodiment of this disclosure, a quick-release mechanism allows users to easily and conveniently install or disassemble the blocking structure and litter box structure as needed. Therefore, when the cleaning device performs the excrement cleaning (i.e., litter cleaning) function and the pet litter cleaning (i.e., litter cleaning) function, the rotation direction of the litter box structure can be consistent, reducing the risk of pinching the pet, increasing safety, and reducing or even eliminating residual pet litter after cleaning, resulting in more thorough and effective cleaning. Simultaneously, users can easily clean and replace the various parts in the cleaning device, improving cleaning efficiency, extending the device's lifespan, and improving its adaptability.

[0043] The following description, in conjunction with the accompanying drawings and some embodiments, illustrates the pet excrement cleaning device and the method for cleaning sand and feces.

[0044] Figure 1 This is a schematic diagram of a cleaning apparatus provided as an example in at least one embodiment of the present disclosure. Figure 2 for Figure 1 A schematic diagram of the explosion of the cleaning device shown. Figure 3 for Figure 1 A cross-sectional view of the cleaning device shown.

[0045] refer to Figure 1 , Figure 2 and Figure 3 This disclosure provides at least one embodiment of a pet excrement cleaning device. The cleaning device includes a litter box structure 100, a cleaning assembly 200, and a quick-release mechanism 300. The litter box structure 100 is configured to rotate about a rotation axis R, and its inner sidewall includes a receiving section 110 and a discharge opening 120 arranged circumferentially along the rotation axis R. The receiving section 110 is configured to receive pet litter, and the discharge opening 120 is configured to allow pet litter and excrement to be discharged.

[0046] refer to Figure 1 , Figure 2 and Figure 3 The cleaning assembly 200 includes a blocking structure 210 and a screening structure 220 connected to each other. The blocking structure 210 is configured to be detachably connected to the sand hopper structure 100. The quick-release mechanism 300 includes a locked state that secures the sand hopper structure 100 to the blocking structure 210 and an unlocked state that allows the sand hopper structure 100 to be separated from the blocking structure 210.

[0047] refer to Figure 1 , Figure 2 and Figure 3In the locked state, the cleaning assembly 200 and the receiving section 110 form a temporary storage cavity 10. In response to a first cleaning signal, the litter box structure 100 rotates about the rotation axis R in a preset rotation direction, allowing pet litter to enter the temporary storage cavity 10. The litter is then sieved out by the screening structure 220 and discharged from the discharge opening 120. In the unlocked state, the cleaning assembly 200 is configured to be located outside the litter box structure 100. In response to a second cleaning signal, the litter box structure 100 rotates about the rotation axis R in the same preset rotation direction to at least discharge pet litter from the discharge opening 120.

[0048] refer to Figure 1 , Figure 2 and Figure 3 The cleaning device provided in at least one embodiment of this disclosure, by providing a quick-release mechanism 300, allows users to easily and conveniently install or disassemble the blocking structure 210 and the litter box structure 100 as needed. Therefore, when the cleaning device performs the functions of cleaning excrement (i.e., feces cleaning) and cleaning pet litter (i.e., litter cleaning), the rotation direction of the litter box structure 100 can be consistent, reducing the risk of pinching the pet. Furthermore, the amount of pet litter remaining after cleaning is reduced, or even virtually eliminated, resulting in more thorough cleaning. Simultaneously, users can easily clean and replace the various parts in the cleaning device, improving cleaning efficiency, extending the device's lifespan, and enhancing its adaptability.

[0049] refer to Figure 1 , Figure 2 and Figure 3Specifically, the cleaning component 200 is usually located inside the litter box structure 100. When the cleaning device needs to clean the litter box, the user can issue a first cleaning signal (e.g., by pressing the litter box button). Under the control of the first cleaning signal, the litter box structure 100 rotates around the rotation axis R in a preset rotation direction, such as clockwise, so that the pet litter enters the temporary storage chamber 10 and is temporarily stored. At this time, the excrement can be screened out by the sieving structure 220. As the litter box structure 100 continues to rotate (e.g., continues to rotate clockwise), the excrement screened out by the sieving structure 220 is discharged from the discharge opening 120. Subsequently, as the litter box structure 100 continues to rotate (e.g., continues to rotate counterclockwise), the clean pet litter in the temporary storage chamber 10 passes through the sieving structure 220 and returns to the receiving section 110 of the litter box structure 100 for the pet to use. When the cleaning device needs to be emptied (i.e., the pet litter is completely emptied), the user can remove the cleaning component 200 from the litter box structure 100 via the quick-release mechanism 300. Under the control of the second cleaning signal, the litter box structure 100 can then rotate in the same preset direction as the cleaning process, thus expelling the pet litter. The entire cleaning process is unaffected by the cleaning component 200, resulting in a more thorough cleaning. Furthermore, when the user needs to clean the cleaning device, component-level disassembly and cleaning can be easily achieved, reducing or even eliminating blind spots and dead zones in the litter box structure 100 and the cleaning component 200. Simultaneously, the user can replace parts as needed; for example, when adapting to different types of pet litter, the appropriate screening structure 220 can be selected.

[0050] It is understandable that the terms "clockwise" and "counterclockwise" mentioned above are only relative. For example, if clockwise rotation is considered a rotation in the middle of the clock, then counterclockwise rotation is considered a rotation in the middle of the clock.

[0051] refer to Figure 1 , Figure 2 and Figure 3 Since users can quickly detach and assemble the cleaning component 200 to clean feces or sand, the sandpit structure 100 can be configured to rotate in the same direction under the control of the first cleaning signal and the second cleaning signal. This reduces the potential location where a pet might get caught in the rotating sandpit structure 100, thus lowering the risk of injury. Furthermore, because users need to manually detach the cleaning component 200 before the cleaning device can perform its sand-cleaning function, this manual operation allows users to observe the pet's position near the device, further reducing the risk of the pet accidentally entering the rotating sandpit structure 100 and improving the safety of the cleaning device.

[0052] Furthermore, having the same rotation direction under the first cleaning signal and the same rotation direction under the second cleaning signal simplifies the control program setup. This simplifies the control logic and related structures of the cleaning device, reducing software development and debugging costs, and decreasing the probability of malfunctions due to complex control logic, thus lowering subsequent maintenance costs. Simultaneously, production efficiency is improved, and production costs are reduced.

[0053] For example, pet litter can collect pet excrement. The pet litter can clump together and encapsulate the pet's excrement so that a sieving structure can separate the excrement from the clean pet litter. For example, pet litter can include cat litter, and the cleaning device can be an automatic litter box. However, this disclosure is not limited to this. For example, pet litter can also be specialized litter for other pets, such as bedding for dogs, rabbits, mice, or other reptiles. It is understood that this disclosure does not limit the usage scenarios, users, or types of pet litter contained in the cleaning device.

[0054] refer to Figure 1 , Figure 2 and Figure 3 For example, the sand silo structure 100 can be generally columnar in shape, and the sand silo structure 100 can include two opposite sides on the rotation axis R, and the receiving section 110 can be connected between these two sides.

[0055] refer to Figure 1 , Figure 2 and Figure 3 For example, the rotation axis R can be parallel to the discharge opening 120 to improve the efficiency of discharging pet litter or excrement during the rotation of the litter box structure 100.

[0056] refer to Figure 1 , Figure 2 and Figure 3 For example, the discharge opening 120 is not limited to being used for discharging pet litter and excrement. For example, a pet can enter the litter box structure 100 through the discharge opening 120. For example, a user can add pet litter to the litter box structure through the discharge opening 120.

[0057] refer to Figure 1 , Figure 2 and Figure 3For example, the sieving structure 220 may include a mesh. With the blocking structure 210 fixed to the litter box structure 100 via the quick-release mechanism 300, as the litter box structure 100 rotates, pet litter can pass through the mesh of the sieving structure 220 under gravity and fall into the temporary storage chamber 10 as it gradually rotates downwards. Thus, the clean pet litter, after being sieving, can be temporarily stored in the temporary storage chamber 10 by the blocking structure 210. After excrement is discharged, the clean pet litter can fall from the temporary storage chamber 10 back into the receiving section 110 so that the pet can continue to use clean pet litter.

[0058] refer to Figure 1 , Figure 2 and Figure 3 For example, when the cleaning component 200 is located outside the litter box structure 100, in response to the second cleaning signal, the litter box structure 100 may discharge all contents within it. For example, if only pet litter is present in the litter box structure 100, the litter box structure 100 may discharge only the pet litter. For example, if both pet litter and excrement are present in the litter box structure 100, the litter box structure 100 may discharge both pet litter and excrement simultaneously; this disclosure does not limit this.

[0059] For example, a quick-release mechanism refers to a structure that allows for rapid installation and disassembly. For instance, this disclosure schematically illustrates a quick-release mechanism including snap-fit ​​elements, which will be elaborated in the examples described later. However, this disclosure is not limiting in this regard. For example, a quick-release mechanism may also include a push-button resilient switch structure, a magnetic structure, a hand-tightening screw structure, etc. It is understood that as long as the quick-release mechanism can reliably fix the blocking structure and the sand chamber structure while allowing for easy installation and disassembly, this disclosure does not limit the specific implementation of the quick-release mechanism.

[0060] Figure 4 for Figure 1 A magnified view of a portion of point P1 is shown.

[0061] refer to Figure 1 and Figure 4 In some examples, the quick-release mechanism 300 is located on the outer wall of the sand hopper structure 100 in the locked state. Users can operate the quick-release mechanism 300 from the outside of the sand hopper structure 100, rather than from inside the structure. This not only makes applying force more convenient but also improves visibility, facilitating repeated disassembly and assembly for the user.

[0062] Figure 5 and Figure 6 for Figure 1The diagram shows partial explosions of the sand hopper structure, blocking structure, and quick-assembly mechanism in the cleaning device from different perspectives.

[0063] refer to Figure 2 , Figure 5 and Figure 6 In some examples, the blocking structure 210 includes a first mounting portion 211 located on the edge of the blocking structure 210 away from the screening structure 220. The sand hopper structure 100 includes a second mounting portion 111 located at the edge of the discharge opening 120. In the locked state, the quick-release mechanism 300 locks the first mounting portion 211 and the second mounting portion 111 together; in the unlocked state, the quick-release mechanism 300 unlocks the first mounting portion 211 and the second mounting portion 111 together, allowing the sand hopper structure 100 to be separated from the cleaning assembly 200. By positioning the first mounting portion 211 at the edge of the blocking structure 210 and the second mounting portion 111 at the edge of the discharge opening 120, the first mounting portion 211 of the blocking structure 210 and the second mounting portion 111 of the sand hopper structure 100 can be easily stacked together, and the quick-release mechanism 300 can be used to fix or disassemble the blocking structure 210 from the outside of the sand hopper structure 100.

[0064] For example, the first mounting portion on the blocking structure can be multiple, such as two or more. Figures 1 to 4 The following explanation uses the example of two first mounting parts 211. For instance, the two first mounting parts 211 can be provided on both sides of the blocking structure 210 along its length, so that the user can install or remove it using both hands. It is understood that when there are two first mounting parts 211, the sand hopper structure 100 can correspondingly be provided with two second mounting parts 111 in a direction parallel to its axis of rotation R, and the quick-release mechanism 300 of the cleaning device can be provided with two.

[0065] refer to Figures 1 to 4 For example, the two first mounting parts 211 can be symmetrically arranged and the two second mounting parts 111 can be symmetrically arranged. Correspondingly, the two quick-release mechanisms 300 can be symmetrically arranged on both sides of the cleaning device, so as to facilitate the user to apply force.

[0066] Figure 7 This is a schematic diagram of a snap-fit ​​component in a cleaning device provided in at least one embodiment of this disclosure. It should be noted that... Figure 7 The shown snap-fit ​​connector and Figure 1 , Figure 2 , Figures 4 to 6 The quick-release mechanism shown can be the same. However, this disclosure is not limiting in this regard, and the quick-release mechanism can also be other structures.

[0067] refer to Figure 7 In some examples, the quick-release mechanism 300 includes snap-fit ​​connectors, such as... Figure 7 The shown snap-fit ​​member 301 includes a first snap-fit ​​structure 310 and a second snap-fit ​​structure 320 disposed opposite each other in a first direction. For example, the first direction can be... Figure 7 The X-direction arrow indicates the direction, or the direction opposite to the direction indicated by the arrow. (Reference) Figure 5 and Figure 7 The first latching structure 310 is rotatably connected to the first mounting portion 211, allowing the quick-release mechanism 300 to switch between a locked state and an unlocked state. In the locked state, the second latching structure 320 latches with the second mounting portion 111; in the unlocked state, the second latching structure 320 is separated from the second mounting portion 111. The user can apply force to the second latching structure 320 to rotate the latching member around the axis of the first latching structure 310, thereby achieving the latching or separation of the second latching structure 320 from the second mounting portion 111.

[0068] refer to Figures 5 to 7 For example, the second mounting portion 111 of the sand hopper structure 100 has a snap-fit ​​portion 1111 on the side away from the discharge opening 120, and the second snap-fit ​​structure 320 has a protrusion 321 on the side facing the first snap-fit ​​structure 310. When the user applies force to the second snap-fit ​​structure 320, the protrusion 321 and the snap-fit ​​portion 1111 can snap into or disengage from each other, thereby enabling the quick-release mechanism 300 to switch between the locked and unlocked states.

[0069] refer to Figure 5 and Figure 7 For example, the first snap-fit ​​structure 310 can be generally axial in shape, and the first mounting portion 211 can include a snap-fit ​​groove 2111. At least a portion of the first snap-fit ​​structure 310 can extend into and be limited by the snap-fit ​​groove 2111. Thus, the quick-release mechanism 300 can be rotatably connected to the blocking structure 210, which facilitates switching between the locked and unlocked states through the rotation of the quick-release mechanism 300.

[0070] For example, refer to Figure 5 The first snap-fit ​​structure 310 and the snap-fit ​​groove 2111 can be detachably connected. Therefore, the quick-release mechanism 300 and the blocking structure 210 can be installed together or separately according to the user's needs. However, this disclosure does not limit this; the first snap-fit ​​structure 310 and the snap-fit ​​groove 2111 can also be non-detachably connected, as long as a rotatable connection between the first snap-fit ​​structure 310 and the snap-fit ​​groove 2111 can be achieved. This disclosure does not limit this.

[0071] refer to Figure 6 and Figure 7For example, the protrusion 321 may include a curved surface, such as a convex surface. For example, the locking portion 1111 may include a guide surface S11 and a limiting surface S12 disposed opposite to each other. The guide surface S11 is configured to guide the protrusion 321 to slide past the guide surface S11 and be blocked by the limiting surface S12, thereby achieving mutual fixation between the protrusion 321 and the locking portion 1111. This makes the installation process easier and the fixation between the blocking structure 210 and the sand hopper structure 100 more reliable.

[0072] refer to Figure 7 In some examples, along a direction parallel to the first direction and along the first snap-fit ​​structure 310 pointing to the second snap-fit ​​structure 320 (e.g. Figure 7 As indicated by the X arrow, the thickness of the second snap-fit ​​structure 320 gradually decreases to facilitate the user applying force to the second snap-fit ​​structure 320. For example, the cross-section of the second snap-fit ​​structure 320 can be approximately triangular, or the second snap-fit ​​structure 320 as a whole can be approximately a triangular prism structure.

[0073] refer to Figure 7 For example, the quick-release mechanism 300 includes a connecting structure 330 connecting the first snap-fit ​​structure 310 and the second snap-fit ​​structure 320. The connecting structure 330 may have multiple mating portions 331 protruding from it, which can be configured to abut against the sidewalls of the first mounting portion 211 and the second mounting portion 111. This improves the stability of the quick-release mechanism 300 in fixing to the first mounting portion 211 and the second mounting portion 111, and the mating portions 331 also enhance the strength of the connecting structure 330.

[0074] refer to Figures 5 to 7 For example, the sidewall of the first mounting portion 211 may be provided with a first recess 2112, and the sidewall of the second mounting portion 111 may be provided with a second recess 1112. Multiple mating portions 331 may include a first mating surface 3311 and a second mating surface 3312. The first mating surface 3311 may be configured to abut against the first recess 2112 and the second recess 1112, and the second mating surface 3312 may be configured to abut against the portion of the sidewall of the first mounting portion 211 excluding the first recess 2112 and the portion of the sidewall of the second mounting portion 111 excluding the second recess 1112. By designing the first recess 2112 and the second recess 1112, and by designing the first mating surfaces 3311 and 3312 of different heights in the mating portions 331, the abutment between the quick-release mechanism 300 and the first mounting portion 211 and the second mounting portion 111 can be made more stable. Therefore, the quick-release mechanism 300 can more stably fix the blocking structure 210 and the sand hopper structure 100 together and prevent them from easily coming loose.

[0075] refer to Figures 5 to 7For example, when the first mounting part 211 and the second mounting part 111 are stacked on top of each other, the edges of the first mounting part 211 and the edges of the second mounting part 111 can be aligned with each other to facilitate the matching between the quick-release mechanism 300, the first mounting part 211 and the second mounting part 111.

[0076] refer to Figure 7 For example, the sidewall of the mating part 331 can be roughly U-shaped to facilitate contact with the larger outer surface area of ​​the first mounting part 211 and the second mounting part 111, thereby improving the stability of the snap-fit.

[0077] refer to Figures 4 to 6 The outer wall of the sand hopper structure 100 includes a recessed structure 130 located on the side of the second mounting portion 111 away from the discharge opening 120. The recessed structure 130 is configured to accommodate at least a portion of the second snap-fit ​​structure 320, and there is a gap between the recessed structure 130 and the surfaces of the second snap-fit ​​structure 320 facing each other. Thus, when it is necessary to separate the cleaning assembly 200 from the sand hopper structure 100, the user's hand can reach into the gap to apply force to the second snap-fit ​​structure 320, causing it to separate from the sand hopper structure 100. Furthermore, the recessed structure 130's ability to accommodate at least a portion of the second snap-fit ​​structure 320 minimizes the protrusion of the quick-release mechanism 300 from the outer wall of the sand hopper structure 100, helping to prevent damage to the cleaning device and resulting in a more aesthetically pleasing cleaning device.

[0078] For example, the entire second snap-fit ​​structure may be located within the recessed structure. However, this disclosure is not limiting in this regard; for example, the recessed structure may only accommodate a portion of the second snap-fit ​​structure, while another portion of the second snap-fit ​​structure may be located outside the recessed structure.

[0079] Figure 8 and Figure 9 This diagram illustrates the cleaning components and quick-release mechanisms of the cleaning apparatus provided in at least one embodiment of this disclosure, according to different examples. It should be noted that... Figure 8 The cleaning components shown can be used with Figure 1 and Figure 2 The cleaning components in the cleaning apparatus shown are the same. However, this disclosure does not limit this. Figure 9 The cleaning components shown can also be applied to Figure 1 and Figure 2 In the cleaning device shown. For example, the quick-release mechanism shown in 8 and Figure 9 The quick-release mechanisms shown can all be used with Figure 1 and Figure 2 The quick-release mechanism in the cleaning device shown is the same.

[0080] refer to Figure 8In some examples, the blocking structure 210 and the screening structure 220 are configured to be detachably connected. Users can assemble the blocking structure 210 with different screening structures 220, or vice versa, as needed. This allows for the selection of appropriate cleaning components 200 based on actual conditions, improving the adaptability of the cleaning device. Furthermore, when the user needs to clean the cleaning device, the blocking structure 210 and the screening structure 220 can be disassembled for separate cleaning, improving the user's cleaning efficiency.

[0081] refer to Figure 9 In some examples, the blocking structure 210 and the screening structure 220 are integrally formed. This reduces the number of parts in the cleaning device and simplifies the assembly process.

[0082] For example, refer to Figure 8 and Figure 9 Based on the aforementioned examples of the connection method between the snap-fit ​​component and the blocking structure 210, after the user operates the quick-release mechanism 300 to unlock it, the quick-release mechanism 300 does not need to be separated from the blocking structure 210. The user can separate the cleaning component 200 and the quick-release mechanism 300, which is rotatably connected to the blocking structure 210, from the sand hopper structure 100, which helps prevent the quick-release mechanism 300 from being lost.

[0083] Figure 10 This is a schematic diagram of the screening structure in a cleaning apparatus provided in at least one embodiment of the present disclosure. Figure 10 The sieving structure shown is Figure 8 , Figure 9 The difference between the screening structures shown lies in the design of the mesh openings.

[0084] For example, different pet litters may have different particle shapes and sizes. To adapt to different pet litters, the cleaning component 200 includes, for example, […]. Figure 8 In the case of the detachably connected blocking structure 210 and screening structure 220 shown, the user can select, as needed, Figure 8 The sieve structure 220 shown or as shown Figure 10 The sieve structure 220 is shown.

[0085] For example, Figure 8 The sieving structure 220 shown may include a plurality of uniformly arranged mesh openings, and the mesh openings are all the same size and shape. For example, the mesh openings may be approximately circular or regular polygonal.

[0086] For example, Figure 10The sieving structure 220 shown may include a plurality of mesh openings of different shapes and sizes. For example, the mesh openings may be generally strip-shaped. For example, the sieving structure 220 may include mesh openings extending along the length direction of the sieving structure 220 and mesh openings extending along the width direction of the sieving structure 220, in order to improve the strength of the sieving structure 220.

[0087] refer to Figure 3 , Figure 8 and Figure 10 For example, after the cleaning component 200 is installed inside the litter box structure 100, the edge of the sieving structure 220 can be in substantially contact with the inner wall of the litter box structure 100, so that the sieving structure 220 can better sift excrement in the pet litter.

[0088] Figure 11 This is a schematic diagram of the blocking structure and the first magnetic element in a cleaning device provided in at least one embodiment of the present disclosure. Figure 12 This is a schematic diagram of the sand chamber structure and the second magnetic suction element in a cleaning device provided in at least one embodiment of this disclosure. It should be noted that... Figure 11 The barrier structure shown can be used with Figure 1 , Figure 2 The blocking structure in the cleaning device shown is the same. Figure 12 The sand silo structure shown can be combined with Figure 1 , Figure 2 The sand hopper structure in the cleaning device shown is the same.

[0089] refer to Figure 11 and Figure 12 The cleaning device includes a first magnetic suction member 410 and a second magnetic suction member 420. The first magnetic suction member 410 is located on the edge of the blocking structure 210 away from the screening structure 220, and the second magnetic suction member 420 is located on the side of the sand hopper structure 100 near the discharge opening 120. The first magnetic suction member 410 and the second magnetic suction member 420 are magnetically attached to each other to position the blocking structure 210 and the sand hopper structure 100 relative to each other. When the blocking structure 210 is installed on the sand hopper structure 100, the user can easily position the blocking structure 210 and the sand hopper structure 100 relative to each other using the magnetic force between the first magnetic suction member 410 and the second magnetic suction member 420, thereby aligning the first mounting part 211 and the second mounting part 111. Thus, the user can easily fix the blocking structure 210 and the sand hopper structure 100 together using the quick-release mechanism 300.

[0090] For example, Figure 11 The diagram schematically illustrates that the blocking structure 210 is provided with a first mounting groove 212, which can be used to mount the first magnetic member 410. For example, Figure 12The diagram illustrates that the sand silo structure 100 is provided with a second mounting slot 140, which can be used to mount a second magnetic member 420.

[0091] refer to Figure 1 and Figure 2 In some examples, the cleaning device also includes a support frame 500 and a receiving container 600, with the litter bin structure 100 rotatably connected to the support frame 500, the support frame 500 surrounding a receiving opening 601 of the receiving container 600. The litter bin structure 100 is configured to rotate in a predetermined direction of rotation until the discharge opening 120 communicates with the receiving opening 601, allowing at least one of excrement and pet litter to enter the receiving container 600. Thus, the support frame 500 can support the rotation of the litter bin structure 100, while the receiving container 600, located below the litter bin structure 100, can receive excrement and pet litter discharged from the litter bin structure 100.

[0092] refer to Figure 1 and Figure 2 For example, the cleaning device further includes a drive structure 910 and a transmission structure 920. A support frame 500 is configured to support the transmission structure 920, and the transmission structure 920 is driveably connected between the drive structure 910 and the sand hopper structure 100. Thus, driven by the drive structure 910, the transmission structure 920 can transmit force to the sand hopper structure 100, thereby achieving rotation of the sand hopper structure 100. For example, the drive structure 910 may include a motor. For example, the transmission structure 920 may include gears, etc., and this disclosure is not limiting in this regard.

[0093] Figure 13 This is a schematic diagram of a cleaning apparatus provided in at least one embodiment of the present disclosure. It should be noted that... Figure 13 The cleaning device shown is Figure 1 The cleaning device shown can be the same cleaning device. Figure 13 The cleaning device shown is Figure 1 The difference in the cleaning device shown is that, in order to clearly illustrate the other structures installed within the support frame, Figure 13 A portion of the support frame housing was removed. Additionally, Figure 13 The cleaning device shown is Figure 1 The cleaning devices shown are viewed from different angles.

[0094] refer to Figure 13In some examples, the cleaning device also includes a first detection element 700 mounted on the support frame 500, configured to brake the sandpit structure 100 upon detection of a target object. By providing the first detection element 700 on the support frame 500, the sandpit structure 100 can be braked upon detection of a target object such as a pet, for example, causing the sandpit structure 100 to stop rotating. This prevents pets from being pinched by the rotating sandpit structure 100, thus improving the safety of the cleaning device.

[0095] In other examples, the direction of rotation of the litter box performing the litter cleaning function is opposite to that of the litter box performing the feces cleaning function. In order to prevent pets from being pinched, detection elements need to be installed on both sides of the litter box (such as the front and back).

[0096] refer to Figure 2 and Figure 13 For example, a plane containing a straight line extending along the direction of gravity and intersecting the rotation axis R, and the rotation axis R, is a reference plane S0. The first detection element 700 can be located only on one side of this reference plane S0. Since the litter box structure 100 rotates in the same direction when performing the litter cleaning function and the litter cleaning function, the risk of pet injury due to pinching is only on one side of this reference plane. Therefore, the first detection element 700 can be set only on one side of the reference plane S0, as in... Figure 13 The rear side of the cleaning device shown is designed to simplify the structural design and reduce manufacturing costs while improving the safety of the cleaning device.

[0097] refer to Figure 1 and Figure 2 For example, with Figure 2 The side where the drive structure 900 is located is the right side. When the cleaning device performs the waste cleaning function, in order to use the cleaning component 200 to sieve the excrement, viewed from the right side, the sand hopper structure 100 rotates clockwise around the rotation axis R, that is, the discharge opening 120 of the sand hopper structure 100 rotates from the front to the rear. During the rotation of the sand hopper structure 100, the discharge opening 120 gradually exposes the receiving opening 601 of the receiving component 600. In this case, if the pet's paw or other parts extend into the receiving opening 601, there is a risk of pinching the pet. Since the sand hopper structure 100 rotates in the same direction when performing the sand cleaning function and the waste cleaning function, the location where the risk of pinching the pet may occur is on the rear side, regardless of whether the sand cleaning function or the waste cleaning function is performed. Therefore, the first detection element 700 can be set only on the rear side of the support frame 500, so that when a pet is detected, the sand hopper structure 100 is braked, thereby ensuring the safety of the cleaning device while simplifying the structure and reducing costs.

[0098] It should be noted that, due to the perspective, Figure 2 The first detection element 700, located on the left rear side of the support frame 500, is only schematically shown. However, this disclosure is not limited to this. For example, another first detection element may be symmetrically arranged on the right rear side of the support frame 500. For example, only one first detection element may be provided. It is understood that this disclosure does not limit the number, location, or specific detection method of the first detection elements, as long as they can be used to detect in areas where pets may be pinched.

[0099] refer to Figure 13 For example, the first detection element 700 may include at least one of an infrared sensor, a radar sensor, and a Hall sensor. It is understood that the first detection element may include one of the infrared sensor, radar sensor, and Hall sensor, or a combination of multiple sensors; this disclosure does not limit this. Of course, the first detection element may also include other sensors, as long as they can be used to brake the sand chamber structure by detecting the target object; this disclosure does not limit this.

[0100] For example, an infrared detection element can emit infrared light, and when a pet blocks the infrared light, it can trigger a braking signal to brake the litter box structure. Similarly, a radar sensor can emit radar in the microwave frequency band, and when a pet enters the detection range, it can trigger a braking signal to brake the litter box structure. Furthermore, a Hall effect sensor can detect obstruction during the rotation of the litter box structure; if a pet enters the litter box, the Hall effect sensor can detect abnormal rotation, thereby triggering a braking signal to brake the litter box structure.

[0101] refer to Figure 1 and Figure 13 In some examples, the cleaning device also includes a button 801 mounted on the support frame 500, and the second cleaning signal is configured to be generated only by triggering the button 801. For example, triggering means that the user needs to touch the button 801 to activate it. Thus, by having the user manually trigger the button 801 to generate the second cleaning signal to perform the sand cleaning function, the user can be prompted to observe the pet's location near the cleaning device to prevent the pet from accidentally entering the sand chamber structure 100 during the sand cleaning process.

[0102] Understandable Figure 1 and Figure 13 The diagram only shows that the support frame may have only one button 801 for performing sand cleaning or toilet cleaning functions.

[0103] However, this disclosure is not limited thereto. Multiple buttons may also be provided on the support frame for performing sand cleaning and bowel cleaning functions, such as two buttons or more multi-function buttons. This disclosure does not limit this.

[0104] refer to Figure 1 and Figure 13 For example, button 801 can be triggered based on the same operating mode to perform the defecation cleaning function or the sand cleaning function, thereby simplifying the structural design of button 801. For example, when the cleaning component 200 is installed inside the sand chamber structure 100, the user can perform defecation cleaning by triggering button 801, such as pressing button 801, using the rotation of the sand chamber structure 100 and the cleaning component 200. For example, when the user needs to clean sand, the cleaning component 200 can be removed from the sand chamber structure 100, and after the user triggers button 801, the rotation of the sand chamber structure 100 can be used to clean sand.

[0105] refer to Figure 1 and Figure 13 In some examples, a first cleaning signal is generated in response to triggering button 801 in the first mode. A second cleaning signal is generated in response to triggering button 801 in the second mode. The first mode is different from the second mode. By setting different trigger modes to correspond to different cleaning modes, it is beneficial for users to operate the cleaning device to perform different functions as needed. Thus, in special modes, such as when the sand cleaning function needs to be performed, the user can be prompted to pay attention to the location of the pet.

[0106] refer to Figure 1 and Figure 13 In some examples, the first mode includes a first trigger time, and the second mode includes a second trigger time. The duration of the first trigger time is less than a preset trigger time, and the duration of the second trigger time is not less than the preset trigger time. For example, the duration of the second trigger time can be equal to or greater than the preset trigger time. Thus, the user can perform the fecal cleaning function by briefly pressing button 801, and perform the sand cleaning function by long-pressing button 801.

[0107] By designing the second mode for performing the sand cleaning function as a long press, users can observe their pet's position and movements in real time while the button is pressed. For example, if the pet jumps into the sandpit structure, or if the pet's paws or other body parts get between the sandpit structure and the support frame, the user can stop pressing the button to brake the sandpit structure, causing the cleaning device to stop performing the sand cleaning function. This reduces the risk of injuring the pet and improves the safety of the cleaning device.

[0108] It is understood that, since the cleaning device provided in at least one embodiment of this disclosure configures the cleaning component 200 to be quickly attached and detached from the sand chamber structure 100 via the quick-release mechanism 300, the safety of the cleaning device does not necessarily rely on a long press of the button 801. In other words, the first mode and the second mode can be set to be the same, thereby providing convenience for the user, and this disclosure does not limit this.

[0109] For example, the preset trigger duration can be 2 seconds. If the user presses the button for less than 2 seconds (e.g., 1 second), it is determined to be a short press, and the cleaning device performs the cleaning function. If the user presses the button for more than 2 seconds (e.g., 2 seconds, 3 seconds, or longer), it is determined to be a long press, and the cleaning device performs the sand removal function. It is understood that the above-mentioned preset trigger duration can be designed as needed, and this disclosure does not limit the specific time of the preset trigger duration.

[0110] refer to Figure 1 and Figure 13 For example, a switch 802 may also be provided on the support frame 500 so that the user can turn the cleaning device on or off. It is understandable that... Figure 1 and Figure 13 The schematic diagram shows that switch 802 is located below button 801, but this disclosure does not impose any restrictions on the relative positional relationship between switch 802 and button 801.

[0111] refer to Figure 13 In some examples, the cleaning device also includes a second detection element 701 mounted on the support frame 500. A first cleaning signal is generated in response to the second detection element 701 detecting excrement for a preset detection time and detecting that there is no target object within the litter box structure 100. The cleaning function can be automatically executed after the second detection element 701 detects that pet defecation has reached the preset detection time and simultaneously detects that the pet is not within the litter box structure 100. For example, the second detection element 701 can also be configured to detect whether the pet is near the litter box structure 100, allowing the user to set conditions for automatically executing the cleaning function as needed.

[0112] refer to Figure 13 For example, the second detection element 701 may include at least one of an infrared sensor, a radar sensor, and a Hall sensor. For details, please refer to the description of the first detection element in the foregoing examples; further details will not be repeated here.

[0113] For example, the cleaning device may also include modules such as Bluetooth and WiFi, so that users can remotely control the cleaning device through other communication devices, such as through mobile phone applications (APP).

[0114] Figure 14 This is a schematic flowchart illustrating a method for cleaning sand and feces provided in at least one embodiment of the present disclosure.

[0115] refer to Figure 1 , Figure 2 , Figure 3 as well as Figure 14 At least one embodiment of this disclosure provides a method for cleaning sand and feces using a cleaning device, including the following steps S100 and S200.

[0116] Step S100: The cleaning component 200 is fixed in the litter box structure 100 by the quick disassembly mechanism 300. In response to the first cleaning signal, the litter box structure 100 is controlled to rotate around the rotation axis R in a preset rotation direction, so that the pet litter enters the temporary storage chamber 10 and the excrement is screened out by the screening structure 220 and discharged from the discharge opening 120.

[0117] Step S200: The cleaning component 200 is unlocked from the litter box structure 100 by the quick disassembly mechanism 300, and the cleaning component 200 is moved out of the litter box structure 100. In response to the second cleaning signal, the litter box structure 100 is controlled to rotate around the rotation axis R in the same preset rotation direction so as to discharge at least the pet litter in the litter box structure 100 from the discharge opening 120.

[0118] For a detailed explanation of the method for cleaning sand and feces, please refer to the relevant descriptions in the embodiments of the cleaning device described above; repeated descriptions will not be repeated here. Since the method for cleaning sand and feces according to the embodiments of this disclosure is used in the above-described cleaning device, it also has corresponding beneficial technical effects, which will not be elaborated upon here.

[0119] The following points need to be explained:

[0120] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0121] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0122] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A device for cleaning up pet excrement, comprising: The sand silo structure is configured to rotate about a rotation axis; The inner wall of the litter box structure includes a receiving section and a discharge opening arranged circumferentially along the axis of rotation. The receiving section is configured to receive pet litter, and the discharge opening is configured to allow pet litter and excrement to be discharged. The cleaning assembly includes a barrier structure and a screening structure connected to each other, the barrier structure being configured to be detachably connected to the sand silo structure; The cleaning device further includes a quick disassembly mechanism, which includes a locking state that fixes the sand chamber structure to the blocking structure and an unlocking state that allows the sand chamber structure to be separated from the blocking structure. In the locked state, the cleaning component and the receiving section form a temporary storage cavity; in response to the first cleaning signal, the litter box structure rotates around the rotation axis in a preset rotation direction, so that the pet litter enters the temporary storage cavity, and the excrement is screened out by the screening structure and discharged from the discharge opening; In the unlocked state, the cleaning component is configured to be located outside the litter box structure; in response to the second cleaning signal, the litter box structure rotates about the rotation axis in the same preset rotation direction to at least discharge the pet litter from the discharge opening.

2. The cleaning device according to claim 1, wherein, In the locked state, the quick-release mechanism is located on the outer wall of the sand hopper structure.

3. The cleaning device according to claim 1 or 2, wherein, The blocking structure includes a first mounting portion located on the side edge of the blocking structure away from the screening structure; the sand silo structure includes a second mounting portion located at the edge of the discharge opening. In the locked state, the quick-release mechanism locks the first mounting part and the second mounting part together; In the unlocked state, the quick-release mechanism unlocks the first mounting part from the second mounting part, allowing the sand chamber structure to be separated from the cleaning assembly.

4. The cleaning device according to claim 3, wherein, The quick-release mechanism includes a snap-fit ​​component, which includes a first snap-fit ​​structure and a second snap-fit ​​structure disposed opposite to each other in a first direction. The first snap-fit ​​structure is rotatably connected to the first mounting part so that the quick-release mechanism switches between the locked state and the unlocked state. In the locked state, the second snap-fit ​​structure snaps into the second mounting part; In the unlocked state, the second snap-fit ​​structure is separated from the second mounting portion.

5. The cleaning device according to claim 4, wherein, Along a direction parallel to the first direction and pointing from the first snap-fit ​​structure to the second snap-fit ​​structure, the thickness of the second snap-fit ​​structure gradually decreases.

6. The cleaning device according to claim 5, wherein, The outer wall of the sand silo structure includes a recessed structure, which is located on the side of the second mounting portion away from the discharge opening; The recessed structure is configured to accommodate at least a portion of the second snap-fit ​​structure, and there is a gap between the recessed structure and the surfaces of the second snap-fit ​​structure facing each other.

7. The cleaning apparatus according to any one of claims 3-6, wherein, The blocking structure and the screening structure are integrally formed.

8. The cleaning device according to any one of claims 3-6, wherein, The blocking structure and the screening structure are configured to be detachably connected.

9. The cleaning device according to any one of claims 3-8, wherein, The cleaning device includes a first magnetic suction element and a second magnetic suction element; The first magnetic suction member is located on the edge of the blocking structure away from the screening structure, and the second magnetic suction member is located on the side of the sand hopper structure near the discharge opening; the first magnetic suction member and the second magnetic suction member are magnetically attached to each other so that the blocking structure and the sand hopper structure are positioned relative to each other.

10. The cleaning device according to any one of claims 1-9, further comprising a support frame and a housing; in, The sand hopper structure is rotatably connected to the support frame, which surrounds the receiving opening of the housing. The litter box structure is configured to rotate along the preset rotation direction until the discharge opening communicates with the receiving opening, so that at least one of the excrement and the pet litter enters the containment.

11. The cleaning device according to claim 10, further comprising a first detection element mounted on the support frame; in, The first detection element is configured to brake the sand silo structure when a target object is detected.

12. The cleaning device according to claim 10 or 11, further comprising a button mounted on the support frame; in, The second cleanup signal is configured to be generated only by triggering the button.

13. The cleaning apparatus according to claim 12, wherein, In response to triggering the button in a first mode, a first cleanup signal is generated; in response to triggering the button in a second mode, a second cleanup signal is generated. The first mode is different from the second mode.

14. The cleaning apparatus according to claim 13, wherein, The first mode includes a first trigger time, and the second mode includes a second trigger time; The duration of the first trigger time is less than the preset trigger duration, and the duration of the second trigger time is not less than the preset trigger duration.

15. The cleaning apparatus according to any one of claims 10-14, further comprising a second detection element mounted on the support frame; in, In response to the second detection element detecting that the excrement has reached a preset detection time and that there is no target object in the sand silo structure, the first cleaning signal is generated.

16. A method for cleaning sand and feces using the cleaning device according to claim 1, comprising: The cleaning component is fixed in the litter box structure by the quick disassembly and assembly mechanism. In response to the first cleaning signal, the litter box structure is controlled to rotate around the rotation axis in the preset rotation direction, so that the pet litter enters the temporary storage cavity and the excrement is screened out by the screening structure and discharged from the discharge opening. The cleaning component is unlocked from the litter box structure by the quick disassembly mechanism, and the cleaning component is moved out of the litter box structure. In response to the second cleaning signal, the litter box structure is controlled to rotate around the rotation axis in the same preset rotation direction, so as to at least discharge the pet litter in the litter box structure from the discharge opening.

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