Cat litter basin

Abstract

The utility model discloses a cat litter basin which comprises a basin body assembly, the basin body assembly comprises a working bin, a screening bin and an excrement collecting bin, the screening bin and the excrement collecting bin form a first unit which is arranged outside the working bin, and the basin body assembly rotates around the rotating center of the basin body assembly under the action of first external force. The excrement collecting bin rotates around the rotation center of the excrement collecting bin under the action of a second external force. The utility model further provides a cat litter basin with the supporting assembly, and the cat litter basin can be connected with a control system to achieve automatic cat litter cleaning besides manual cat litter cleaning. According to the cat litter basin, the first unit is arranged outside the working bin, and the excrement collecting bin is configured to be capable of rotating, so that the cat litter basin is simple in overall structure, reasonable in distribution and high in working space utilization rate, cat excrement is cleaned up, meanwhile, a user can clean the cat litter basin conveniently, and the cleaning workload of the user is greatly reduced.

Description

Technical Field

[0001] This utility model relates to a cat feces cleaning device, specifically a cat litter box. Background Technology

[0002] With the continuous improvement of living standards and the simplification of family structures, more and more families, especially single young people, prefer to keep pets as daily companions and leisure time partners. This is especially true in economically developed metropolises, where, due to limited living space, more and more people tend to keep cats. Generally, trained cats will defecate in the litter box and bury it, requiring people to manually pick out the feces, which is time-consuming and laborious. Moreover, people need to be out at work during the day and cannot clean up cat feces in time, causing feces to accumulate. Accumulated feces not only make the room smell bad but also bring a series of hygiene problems.

[0003] Among existing automatic litter boxes, the roller-type automatic litter box based on the gravity screening principle is favored by consumers and occupies the main market due to its simple structure and stable performance. Existing roller-type litter boxes integrate both screening and waste collection functions within the roller, with the waste collection space and working space connected. This structure has the following drawbacks: 1. The screening and waste collection spaces inevitably occupy the roller space, i.e., the pet's working space, resulting in low utilization of the working space. Furthermore, in most cases, a guide or connecting component is needed between the waste collection space and the working space to ensure that cat feces fall from the working space into the waste collection space during operation; 2. During cleaning, feces already stored in the waste collection space may roll from the waste collection space into the working space. During operation, the feces that roll out of the waste collection space will be collected again along with newly generated feces. This process causes stored feces to repeatedly enter and exit the connection between the waste collection space and the working space, repeatedly contaminating the inner wall of the roller and leading to accumulated odors. 1. Increased burden, requiring more frequent cleaning of the litter box; 2. To provide cats with sufficient space for urination, automatic roller litter boxes are typically large in size, and their components cannot be folded or retracted. They must be transported in their entirety during storage and transportation, resulting in inefficient use of internal space and high storage and transportation costs, especially for long-distance transport (such as product export), where transportation costs can account for more than half of the product's value; 3. Due to limitations in shape or size, existing litter boxes can hold relatively little litter, and the litter layer is shallow, resulting in a small effective area for cats to urinate. This makes it easier for cats to excrete on the shallow litter surface, causing feces to stick to the bottom and preventing automatic cleaning, thus increasing the time required for manual cleaning. Utility Model Content

[0004] The purpose of this utility model is to provide a litter box with a simple structure, reasonable distribution, high workspace utilization, cleans up cat feces, and is easy for users to clean, greatly reducing the amount of cleaning work for users.

[0005] This utility model discloses a cat litter box, including,

[0006] A basin assembly includes a working chamber, a screening chamber, and a collection chamber. The screening chamber and the collection chamber form a first unit external to the working chamber. An extension is disposed on the screening chamber, and the collection chamber is internally housed within the extension. The extension is equipped with a movable end cap that closes the opening of the collection chamber.

[0007] Under the action of the first external force, the basin assembly rotates around the rotation center of the basin assembly.

[0008] The collection chamber rotates around its own rotation center under the action of a second external force.

[0009] In this embodiment, the screening chamber and the waste collection chamber form a first unit, that is, the screening chamber and the waste collection chamber are combined to form an integral component structure. The first unit is placed outside the working chamber, effectively ensuring that the working space of the working chamber is not occupied by the screening chamber and the waste collection chamber, so that the entire working space of the working chamber is available for the pet. Compared with the prior art, this technical solution can accommodate larger pets. The litter box of this utility model is mainly composed of a basin component consisting of a working chamber, a screening chamber, and a waste collection chamber. The screening chamber and the waste collection chamber form the first unit and are placed outside the working chamber. This litter box has a simple structure and a reasonable distribution. Specifically, when the basin component is in the initial position, the waste collection chamber is located directly above the screening chamber. This structural distribution ensures that both the screening chamber and the waste collection chamber are located outside the working chamber. Compared with the prior art, this structural distribution effectively avoids the waste collection chamber occupying the upper space of the working chamber in the prior art. The problem is that the upper space of the working chamber is completely open, allowing the working chamber to accommodate larger pets. In this new litter box, the basin assembly can rotate around its rotation center under the action of a first external force, and the waste collection chamber rotates around its own rotation center under the action of a second external force. During operation, the working chamber, screening chamber, and waste collection chamber in the basin assembly rotate together around the rotation center of the basin assembly under the action of the first external force. That is, the waste collection chamber revolves around the rotation center of the basin assembly along with the working chamber and screening chamber. At the same time, the waste collection chamber also rotates around its own rotation center under the action of the first external force. This not only ensures that cat feces in the working chamber can fall directly and smoothly into the waste collection chamber during operation, but also effectively saves guide parts or connecting parts between the working chamber and the waste collection chamber compared to the prior art, making the litter box structure simpler.

[0010] This utility model features a dual-operation configuration in its litter box: the collection chamber rotates both around a central axis and rotates on its own axis. The central axis involves the collection chamber rotating together with the screening chamber and the working chamber as part of the box assembly. The rotation on its own axis occurs as the collection chamber and working chamber rotate, ensuring that the opening of the collection chamber remains upward-facing regardless of the box assembly's position (initial, first, or second). When the box assembly rotates from the initial position to the first position, the screening chamber is at its lowest point, allowing litter to fall from the working chamber into the screening chamber, while feces remain in the working chamber. When the box assembly rotates from the first position to the second position, the collection chamber is again at its lowest point, with its opening upward-facing, allowing feces to roll from the working chamber into the collection chamber under gravity. When the litter box assembly rotates in reverse, returning from the second position to the first position, the opening of the collection chamber is also facing upwards, and cat feces are retained in the collection chamber. When the litter box assembly continues to return from the first position to the initial position, cat litter returns from the screening chamber to the working chamber. Since the opening of the collection chamber is also facing upwards at this time, the cat feces already collected in the collection chamber remain in the collection chamber, effectively solving the problem of cat feces falling from the collection chamber back to the working chamber in the prior art. This structural configuration and operation mode of the litter box of this utility model can ensure that the problem of collected and being collected cat feces falling out of the collection chamber is avoided throughout the entire process, whether the litter box assembly is in the initial position, the first position, or the second position.

[0011] Furthermore, the basin assembly is composed of the working chamber, the screening chamber, and the feces collection chamber connected in sequence. The screening chamber and the feces collection chamber are connected to form a first unit, and the first unit is connected to the working chamber to form the basin assembly.

[0012] In this embodiment, the litter box assembly is composed of a working chamber, a screening chamber, and a waste collection chamber connected in sequence. Specifically, the screening chamber and the waste collection chamber are first configured as a single component structure, that is, the waste collection chamber is installed on the screening chamber to form a first unit; then, the screening chamber in the first unit of the component structure is connected to the working chamber to form the litter box assembly. The litter box assembly of this utility model has few overall parts, a simple structure, and is easy to assemble and disassemble.

[0013] Furthermore, the screening chamber is a container with an enclosed outer perimeter, and the side of the screening chamber adjacent to the working chamber is provided with a selective passage opening, and a filter screen is provided at the opening.

[0014] In this embodiment, the screening chamber is selected to form an enclosed container on its outer periphery, so that the screening chamber is configured outside the working chamber, that is, to ensure that the screening chamber can be placed outside the working chamber; the selective passage opening of the screening chamber and the configuration of the filter screen at the opening, the pore size of the filter screen is smaller than the size of pet feces and larger than the size of cat litter, so that cat litter passing through the opening can freely enter and exit the screening chamber through the filter screen, while pet feces are intercepted and cannot enter the screening chamber.

[0015] As a preferred embodiment of this utility model, the filter screen is provided with a first counterweight on one side of the working chamber, and the filter screen is movably connected to the screening chamber.

[0016] In this embodiment, one side of the filter screen is pivotally connected to the opening of the screening chamber. When the basin assembly is in its initial position, both the filter screen and the first counterweight are below the pivot point. The first counterweight acts on the filter screen, and under the action of the first counterweight, the center of gravity of the filter screen is located on the side away from the screening chamber. This causes the filter screen to adhere tightly to the opening of the screening chamber under the action of gravity, which further prevents the filter screen from encroaching on the working chamber space under the action of gravity. When the basin assembly moves from the initial position to the first position, the filter screen, under the action of the counterweight, has its center of gravity located to the left of the pivot point. The filter screen, still under the action of gravity, adheres tightly to the opening of the screening chamber. At this time, cat litter enters the screening chamber through the filter screen, while pet feces remain in the working chamber or stay on the upper surface of the filter screen or the outer wall of the screening chamber. When the basin assembly moves from the first position to the second position, the filter screen and counterweight are located above the pivot point. Under the action of the counterweight, the center of gravity of the filter screen is still located on the side away from the screening chamber from the pivot point. At this time, the filter screen pivots and opens to a position away from the opening due to gravity, thereby thoroughly shaking off any small particles of pet feces that may remain attached to the filter screen, achieving the technical effect of improving filtration efficiency. In addition, since the water absorption rate of cat litter varies, small pieces of pet feces may break during the cleaning process. These feces fragments, which are close to or slightly larger than the filter mesh size, may get stuck in the filter mesh and not fall off in time. They may also stick to the filter mesh because the cat litter has a low water absorption rate. In order to improve the filtration efficiency of pet feces, it is necessary to design a solution that matches the filter mesh. It is necessary to make the filter mesh shake once during operation to get rid of the residual pet feces fragments stuck to the filter mesh. The configuration of the first counterweight on the filter mesh in this utility model solves this problem very well.

[0017] As a preferred technical solution of this utility model, a flap is configured at the adjacent position of the screening chamber and the fecal collection chamber.

[0018] During actual research and development testing, the following problem was found: When the basin assembly moves from the first position to the second position, some nearly spherical pet feces or a small amount of loose cat litter that has fallen off the pet feces will roll and slide down before other shapes of pet feces. At this time, the collection chamber may not be able to move in time to fully receive these pet feces or loose cat litter that have rolled down in advance under the second force, so that a small amount of pet feces and loose cat litter may enter the gap between the collection chamber and the screening chamber and not be completely collected into the collection chamber. Therefore, to solve this problem, this utility model configures a flap at the adjacent position of the screening chamber and the waste collection chamber. When the basin assembly is between the initial position and the first position, the flap is tilted up under the action of gravity. This state can effectively block cat feces or loose cat litter that rolls down in advance and temporarily intercept them on the side of the flap away from the waste collection chamber. As the basin assembly rotates further, when the opening of the waste collection chamber rotates and contacts the flap, the flap loses the support of the outer wall of the waste collection chamber and lies flat against the outer wall of the screening chamber under the action of gravity. At this time, the pet feces and loose cat litter intercepted on the side of the flap away from the waste collection chamber, as well as large pieces of pet feces, slide over the surface of the flap and enter the waste collection chamber.

[0019] Furthermore, the screening chamber is equipped with an extension.

[0020] In this embodiment, the extension extends from the top outline of the screening chamber toward one side of the working chamber, forming an accommodating space above the screening chamber, within which the stool collection chamber is disposed. This extension arrangement ensures that the stool collection chamber, after being placed in the accommodating space, forms a first unit with the screening chamber as an integral structure. This not only enhances the aesthetic appearance of the first unit but also improves the stability of the stool collection chamber's fit with the screening chamber during transportation, preventing the stool collection chamber from detaching from the first unit.

[0021] Furthermore, the waste collection chamber is a box-shaped container with an opening, and both ends of the waste collection chamber are pivotally connected to the extension of the screening chamber.

[0022] In this embodiment, the waste collection chamber is configured as a box-shaped container, with both ends pivotally connected to the extension. The waste collection chamber is pivotally connected to the extension, so that while the waste collection chamber revolves around the basin assembly under the action of a first external force, it also rotates on its own axis under the action of its own weight, i.e., a second external force. This keeps the opening of the waste collection chamber of the box-shaped container facing upward, ensuring that the waste collection chamber can smoothly collect pet feces, while preventing the collected pet feces from rolling back into the working chamber.

[0023] Furthermore, the first unit is detachably connected to the working chamber, and after disassembly, the first unit can be nested inside the working chamber.

[0024] In this embodiment, the outer contour dimension of the first unit is smaller than the inner contour dimension of the working chamber. Specifically, the outer contour dimension of the screening chamber is smaller than the inner contour dimension of the working chamber, and the waste collection chamber is located inside the extension of the screening chamber. Furthermore, the first unit is detachably connected to the working chamber. This structural configuration allows the litter box to be disassembled from the working chamber when it is not in use for extended periods, during storage, or during transportation. The first unit can then be nested inside the working chamber, making the outer contour of the working chamber the same as the overall outer contour of the litter box assembly. This reduces the volume of the litter box assembly to be the same as the working chamber, significantly reducing the space occupied by the litter box during storage and transportation. This allows for the storage or placement of more litter boxes within the same storage and transportation space, effectively saving storage and transportation costs.

[0025] Furthermore, the outer contour of the first unit on the side away from the work chamber is adapted to the shape of the inner bottom of the work chamber.

[0026] In this embodiment, the first unit is configured to fit the shape of the working chamber, so that after the first unit is placed in the working chamber, the fit between the first unit and the working chamber is more perfect, and the basin assembly is more stable during storage and transportation.

[0027] Furthermore, the extension is provided with an end cap that can movably close the opening of the waste collection chamber.

[0028] In this embodiment, the end cap of the extension is configured such that, when the basin assembly is in the initial position, the opening of the waste collection chamber corresponds to the position of the end cap, and the end cap closes the opening of the waste collection chamber, preventing the spread of pet feces odor from the waste collection chamber. When the basin assembly moves from the initial position to the first position and further to the second position under the action of a first external force, the waste collection chamber and the end cap, driven by the extension, revolve around the rotation center of the basin assembly together with the entire basin assembly. Simultaneously, the waste collection chamber also rotates around its own rotation center under the action of a second external force. During this rotation, the opening of the waste collection chamber also moves away from the position of the end cap, meaning the end cap no longer closes the opening, and the opening gradually becomes open. When the basin assembly moves to the second position, the open portion of the waste collection chamber connects to the outer wall of the screening chamber facing the rotation center of the basin assembly, allowing it to receive the rolling pet feces. When the basin assembly returns from the second position to the initial position, the opening of the waste collection chamber again corresponds to the position of the end cap and is closed by the end cap. With the support of the end cap, this utility model achieves two technical effects simultaneously: First, it prevents pet feces already collected in the collection chamber from repeatedly entering and exiting the collection chamber during the cleaning process, thus avoiding contamination of the inner wall of the basin assembly and exacerbating odors; Second, when the basin assembly is in the initial position, the collection chamber is sealed by the end cap, blocking odor emissions and preventing pet feces from attracting or breeding insects. In this embodiment, the initial position is in standby mode in the user's environment. The basin assembly will only leave the initial position after the pet has used it and the cleaning process begins. Therefore, the end cap configuration in this embodiment ensures that the product is in the initial position most of the time, effectively blocking odor emissions.

[0029] Furthermore, the end cap is movably connected to the extension.

[0030] In this embodiment, the end cap and the extension are rotatably connected. When the collection chamber is full of pet feces, the user can remove the pet feces in real time by opening the end cap. Furthermore, a fixed plastic bag can be pre-placed inside the collection chamber. When the user removes the pet feces, the pet feces can be removed along with the plastic bag and disposed of in a package. Alternatively, after opening the end cap and disengaging the pivot connection between the collection chamber and the extension, the collection chamber can be further removed to clean and remove the pet feces and to more thoroughly clean the collection chamber.

[0031] Furthermore, the working chamber is a basin-shaped container.

[0032] In this embodiment, a certain amount of cat litter is loaded inside the working chamber. After the pet enters the working chamber space, it completes its defecation and burying of excrement in this area. The working chamber is configured as a basin-shaped container with an open structure, providing a large working space suitable for pets of different sizes, thus offering good applicability.

[0033] As a preferred embodiment of the cat litter box of this utility model, the working chamber is equipped with a soft pad.

[0034] After a pet relieves itself in the litter box, if the litter's absorbency is insufficient or the amount of litter is too small, the pet's urine may soak the litter and stick to the bottom of the litter box. This can hinder the automatic cleaning of the litter box. For example, when the litter box assembly is in the second position, the pet feces stuck to the bottom of the litter box cannot fall off naturally under gravity. Therefore, this invention lays a soft pad at the bottom of the litter box. When the litter box assembly rotates to the second position, the soft pad deforms under gravity. The relatively hard pet feces and litter sticking to the soft pad can no longer stick to the soft pad, thus allowing them to be easily peeled off under gravity and roll into the waste collection tank, greatly reducing the amount of work the user needs to do to clean the litter box.

[0035] Furthermore, a retaining ring is provided at the edge of the cushion, and the working chamber is formed by connecting the working chamber wall and the working chamber bottom. The retaining ring is clamped and fixed by the connection between the working chamber wall and the working chamber bottom.

[0036] In this embodiment, the litter box has a split structure, consisting of a litter box wall and a litter box bottom connected by a connector. A retaining ring is located at the edge of the cushion, positioned at the connection between the litter box wall and bottom, and held in place by the wall and bottom. This invention, with its cushion with a retaining ring and split-structure litter box, allows users to easily replace the litter box if the pet damages it. The user can then replace the litter box, align the retaining ring at the edge of the cushion with the wall and bottom, and reinstall the connector, thus replacing the litter box and preventing the litter box from becoming unusable due to cushion damage.

[0037] As a preferred embodiment of the cat litter box of this utility model, the working chamber is equipped with a soft plastic bag.

[0038] This embodiment is an alternative technical solution to replace the soft pad inside the working compartment. The present invention configures a soft plastic bag inside the working compartment. The soft plastic bag is also a soft component and has the same function and technical effect as the aforementioned soft pad configured inside the working compartment, in order to solve and alleviate the technical problem of cat litter and urine mixing, fixing and sticking to the bottom of the working compartment.

[0039] Furthermore, the working chamber is composed of a working chamber wall and a working chamber bottom. The connection between the working chamber wall and the working chamber bottom is provided with a groove and a pressure ring. The pressure ring is detachably embedded in the groove. The opening of the soft plastic bag is disposed between the groove and the pressure ring. The pressure ring presses and fixes the soft plastic bag in the groove.

[0040] In this embodiment, the upper part of the working chamber is the working chamber wall, and the lower part is the working chamber bottom. A groove is provided at the connection between the working chamber wall and the working chamber bottom. The opening of the soft plastic bag is positioned in the groove, and then the soft plastic bag is fixed between the pressure ring and the groove by pressing the pressure ring into the groove. During the use of the litter box, users need to perform certain maintenance work, one of which is to add cat litter or completely replace the cat litter in the working chamber. This is because although cat litter can adhere to pet feces and form clumps, small loose particles inevitably fall off during cleaning. These contaminated loose cat litter particles gradually accumulate over time, causing the cat litter to produce odors and also breeding mold and bacteria, resulting in a deterioration of the cleanliness. Therefore, it is necessary to regularly replace the cat litter in the working chamber. However, cat litter boxes are large, and in the existing technology, replacing cat litter involves using hand tools to remove it in batches or lifting the entire basin assembly and dumping it into the trash can, which is very inconvenient. The technical solution proposed in this utility model involves setting a pressure ring inside the working chamber to hold a soft plastic bag, and then laying cat litter on the soft plastic bag. When the user needs to completely replace the cat litter, the pressure ring is removed, and all the cat litter can be removed as a whole using the soft plastic bag. Then, a new soft plastic bag can be placed into the working chamber. This operation is convenient and quick, and also reduces the maintenance burden of cleaning the bottom of the working chamber for the user.

[0041] As a preferred embodiment of the cat litter box of this utility model, the cat litter box further includes a sand cleaning structure, which is disposed above the filter screen of the screening chamber and adjacent to the feces collection chamber.

[0042] As described above, cat litter boxes require regular replacement of the litter in the working compartment during use. Traditionally, this involves manually cleaning the working compartment by removing it, or placing a soft pad or plastic bag inside and cleaning by replacing the pad or bag. This embodiment provides a technical solution that includes a litter cleaning structure positioned above the filter screen in the sieving compartment and adjacent to the litter collection compartment. This cleaning structure allows litter to pass through and into the litter collection compartment. As the litter box rotates, the litter automatically falls into the collection compartment, achieving automatic litter cleaning and meeting the user's maintenance needs for litter replacement.

[0043] Furthermore, the sand-cleaning structure includes one or more sand discharge ports, and the sand discharge ports are equipped with sand discharge doors for opening or closing the sand discharge ports.

[0044] In this embodiment, the configuration of the litter box's cleaning outlet ensures that as the litter box assembly rotates from the initial position to the first position and then from the first position to the third position, the litter in the working chamber first passes through the filter screen into the screening chamber, and then exits through the litter box's cleaning outlet into the waste collection chamber. The cleaning door is designed so that when the user needs to change the litter, it can be opened to expose the cleaning outlet, ensuring that the litter enters the waste collection chamber while the litter box assembly rotates, thus achieving litter cleaning. When the litter box is in use, the cleaning door is closed to prevent litter from falling into the waste collection chamber from the cleaning outlet.

[0045] This utility model also discloses another type of cat litter box, which, based on the aforementioned cat litter box, further includes a support component, with the box body component pivotally connected to the support component. The support component in this embodiment not only gives the cat litter box the advantages of simple structure, reasonable distribution, and large working space, but also the advantages of flexible, convenient, and labor-saving operation, and it is more versatile. It can be manually operated for cleaning cat feces or cat litter, or automatically cleaned through a drive structure.

[0046] As a preferred embodiment of the cat litter box of this utility model, the support component includes two oppositely distributed support walls, and the two ends of the box body component are respectively pivotally connected to the support walls on both sides.

[0047] In this embodiment, the arrangement of two oppositely distributed support walls in the support assembly is used to pivotally connect the two ends of the basin assembly, so that the support at both ends of the basin assembly is balanced, and the basin assembly operates smoothly and effortlessly when rotating along the center of the pivot hole under the action of the first external force.

[0048] Furthermore, the support assembly also includes a chassis structure, with two support walls respectively connected to opposite sides of the chassis structure.

[0049] In this embodiment, the chassis structure is configured such that the two support walls in the support component are respectively connected to both sides of the chassis structure, so that the support walls and the chassis structure together form a support component, which effectively ensures the support stability of the support component. Furthermore, the two separate support walls are connected through the chassis structure to form an integral component structure, which facilitates warehousing and transportation.

[0050] As a preferred embodiment of the cat litter box of this utility model, the support assembly includes a support wall and a set of roller support frames. One end of the litter box assembly is pivotally connected to the support wall, and the other end is mounted on the roller support frames.

[0051] This utility model also provides a support component solution. This embodiment provides another support component structure, in which the upper support wall is used to pivotally connect the basin component, so that the basin component rotates around the center of the pivot hole. At the same time, the basin component is mounted on the roller support frame, and the other side of the basin component is supported by the rollers on the roller support frame. During the rotation of the basin component, the rollers on the roller support frame rotate together with the basin component.

[0052] Furthermore, this embodiment also provides another support component structure, the support component including a support wall and a chassis structure, the support wall being connected to one side of the chassis structure, and one or more rollers distributed on the side of the chassis structure away from the support wall, the rollers being arranged protruding from the upper surface of the chassis structure for supporting the basin assembly, the other side of the chassis structure being connected to the support wall, the support wall being pivotally connected to the basin assembly to provide support for the rotation of the basin assembly.

[0053] Furthermore, the support wall is a one-piece molded structure, and a pivot hole is provided at the pivot joint between the support wall and the working chamber. The configuration of this one-piece molded support wall makes its processing and installation simpler and more convenient.

[0054] Since users require cleaning of the basin assembly, but the support assembly contains electrical components and is unsuitable for cleaning, this invention also provides a support wall with a split-connection structure. The support wall includes a support wall body and a bearing bush disposed above the support wall body. The bearing bush is movably connected to the support wall body, and the connection between the bearing bush and the support wall body forms a pivot hole for pivotally connecting the working chamber. This split-connection structure of the support wall allows the bearing bush to be removed from the support wall body when the user needs to clean the basin assembly, and then the basin assembly can be removed from the support assembly, thus achieving the need for cleaning the basin assembly separately without affecting the electrical components on the support assembly.

[0055] Furthermore, the support component is a foldable or detachable structure, and the outer contour dimension of the folded or detached support component is smaller than the inner contour dimension at the opening of the working compartment. When the support component is a foldable structure, the support wall and / or roller support frame are movably connected to the chassis structure to form a foldable structure. In addition to the folding technical solution, it can also be a detachable structure in which the support wall and / or roller support frame are movably connected to the chassis structure. Moreover, in addition to the mechanical structural connection between the support wall and the chassis, there are also movable electrical connection components, such as USB plugs and USB sockets, which are fixed at corresponding positions on the support wall and the chassis, respectively, to meet the communication and power supply needs between the electrical components configured on the chassis and the support wall. In this embodiment, the support component is configured as a foldable or detachable structure. During storage and transportation, the manufacturer can fold and store the support wall and chassis in the working compartment. After purchase, the user only needs to unfold and assemble it to realize its use. The compact size of product packaging reduces warehousing and transportation costs. As the average weight and size of cats show a year-on-year increasing trend, the space requirements for the product categories described in this case are also gradually increasing, and the costs of transporting and storing these products are rising significantly. However, this contradicts the increasingly intense market competition. Therefore, achieving smaller storage and transportation volumes and reducing the use of packaging materials has greater commercial value and demand, and is also beneficial to environmental protection. In this embodiment, the support component is preferably configured as a foldable structure, which not only allows for folding and storage but also avoids the problem of easily lost parts after disassembly, as with detachable structures.

[0056] Furthermore, the first external force is generated by human power or by a first driving component, wherein the first driving component is disposed on the support component and is used to drive the basin component to rotate around its rotation center; or human power directly drives the basin component to rotate around its rotation center.

[0057] In this embodiment, the first driving component includes a first motor and a first gear assembly. The first motor is fixed to the support component, one end of the first gear assembly is fixed to the output end of the first motor, and the other end is fixed to the basin assembly. The first motor drives the basin assembly to rotate around its rotation center through the first gear assembly. This utility model cat litter box allows the basin assembly to be rotated directly by human power, or it can be driven automatically and intelligently by the first driving component.

[0058] Furthermore, the second external force is generated by the gravity of the collection chamber itself, or by the first drive assembly through the transmission assembly, or by the second drive assembly.

[0059] When the second external force is generated by the gravity of the collection chamber itself, the collection chamber rotates around its own rotation center under the action of its own gravity as it rotates with the basin assembly.

[0060] When the second external force is generated by the second driving component, the second driving component is disposed on the screening chamber to drive the collection chamber to rotate around its own rotation center; or, the second driving component is disposed on the collection chamber to output a force to the screening chamber, which in turn pushes the collection chamber to rotate around its own rotation center. Specifically, the second driving component includes a second motor and a second gear assembly. The second motor is fixed to the screening chamber, one end of the second gear assembly is fixed to the output end of the second motor, and the other end is fixed to the collection chamber. Alternatively, the second driving component can be disposed on the collection chamber, in which case the second motor is fixed to the collection chamber, one end of the second gear assembly is fixed to the output end of the second motor, and the other end is fixed to the screening chamber to output a force to the screening chamber, which in turn pushes the collection chamber to rotate around its own rotation center. In this embodiment, the configuration of the second driving component allows the collection chamber to rotate around its own rotation center either in advance or with a delay. Specifically, before the basin assembly reaches the second position, the second driving component can drive the collection chamber to rotate, causing the collection chamber opening to move in advance to a position where it connects with the outer wall of the screening chamber on the side closest to the rotation center of the basin assembly. This avoids the defect that spherical pet feces and loose cat litter that roll off prematurely cannot be completely collected in the collection chamber, achieving the same technical effect as the flip-top. In addition, the collection chamber can be rotated manually without opening the flip-top, opening the collection chamber opening to facilitate user checks on whether the collection chamber is full. The collection chamber can also be shaken individually to make the pet feces in the collection chamber more evenly distributed. Besides the above functions, it also assists in rotating the collection chamber when gravity is insufficient, ensuring that it reaches the correct position.

[0061] When the second external force is generated by the first driving component through the transmission component, the transmission component is connected to the first driving component and the collection chamber respectively. The transmission component is a belt drive. In this embodiment, the conveyor belt is preferred as the transmission component. One end of the conveyor belt is sleeved on the first driving wheel or the first driven wheel in the first driving component, and the other end is sleeved on the second driven wheel in the second driving component. The first driving wheel or the first driven wheel drives the second driven wheel to rotate through the conveyor belt, thereby driving the collection chamber to rotate around its rotation center.

[0062] Furthermore, the litter box of this utility model also includes a sensing device and a control system. The sensing device and the first drive assembly are respectively connected to the control system. The sensing device includes a first sensor and / or a second sensor, wherein...

[0063] The first sensor is configured on the support assembly to detect whether an animal or person enters or exits the basin assembly and / or approaches the basin assembly. The first sensor may be a gravity sensor, which determines whether a pet has entered or exited the basin assembly by measuring changes in weight data. It may also be a microwave radar sensor, an ultrasonic ranging sensor, a pyroelectric sensor, an infrared sensor, etc., which uses changes in light blocking and reflection signals, and radio blocking and reflection variables to determine whether a pet has entered or exited the basin assembly.

[0064] The second sensor is configured on the support assembly to detect the relative position of the basin assembly and the support assembly. The second sensor can be a position switch sensor, a Hall sensor configured on the base and a magnet configured on the basin assembly, a grating configured on the basin assembly and an infrared grating sensor configured on the base, etc. The position of the basin assembly is determined by the switch signal, magnetic field variable and light variable, and the signal is transmitted to the control system to generate an action signal and deliver the drive assembly to execute the corresponding drive action.

[0065] Compared with the prior art, this utility model has the following advantages:

[0066] First, the working space utilization rate is high. The first unit of the integrated component structure formed by combining the screening chamber and the waste collection chamber is placed outside the working chamber, which effectively ensures that the working space of the working chamber is not occupied by the screening chamber and the waste collection chamber, so that the working space of the working chamber is entirely available for the pet. This avoids and solves the problem of the screening chamber and the waste collection chamber occupying the working space in the working chamber in the existing technology. Compared with the existing technology, this technical solution can be adapted to pets with larger body sizes.

[0067] Secondly, the structure is rationally distributed. The litter box of this utility model is mainly composed of a basin assembly consisting of a working chamber, a screening chamber, and a collection chamber. The screening chamber and the collection chamber form a first unit located outside the working chamber. The structure of this litter box is rationally distributed. Specifically, when the basin assembly is in its initial position, the collection chamber is located directly above the screening chamber. This structural distribution ensures that both the screening chamber and the collection chamber are located outside the working chamber. Compared with the prior art, this structural distribution effectively avoids the problem of the collection chamber occupying the upper space of the working chamber in the prior art, and completely opens up the upper space of the working chamber.

[0068] Third, the structure is simple. During operation, the basin assembly consisting of the working chamber, the screening chamber, and the waste collection chamber rotates together around the center of rotation of the basin assembly under the action of a first external force. That is, the waste collection chamber revolves around the center of rotation of the basin assembly along with the working chamber and the screening chamber. At the same time, the waste collection chamber also rotates around its own center of rotation under the action of the first external force. The structural configuration of this invention allows cat feces in the working chamber to fall directly into the waste collection chamber during operation. Compared with the prior art, it saves the guide or connecting parts between the working chamber and the waste collection chamber, making the cat litter box structure more simplified.

[0069] Fourth, the litter box of this invention features a dual-operation configuration where the collection chamber rotates both around a central axis and on its own axis. The central axis involves the collection chamber rotating together with the screening chamber and the working chamber as part of the litter box assembly. The rotational axis occurs as the collection chamber rotates along with the screening and working chambers, ensuring that the opening of the collection chamber remains upward-facing regardless of whether the litter box assembly is in the initial, first, or second position. This structural configuration and operating method of the litter box of this invention guarantees that collected and being collected cat feces will not fall out of the collection chamber, regardless of whether the litter box assembly is in the initial, first, or second position. Attached Figure Description

[0070] Figure 1 This is a perspective view of Embodiment 1 of the cat litter box of this utility model;

[0071] Figure 2 A cross-sectional schematic diagram showing the rotation center of the basin assembly positioned on the working chamber;

[0072] Figure 3 A cross-sectional schematic diagram showing the rotation center of the basin assembly positioned on the screening chamber;

[0073] Figure 4 A 3D view of a litter box with end caps on the screening compartment;

[0074] Figure 5 for Figure 4 A schematic diagram of the middle basin assembly in its initial position;

[0075] Figure 6 for Figure 4 A schematic diagram of the middle basin assembly in the first position;

[0076] Figure 7 for Figure 4 A schematic diagram of the middle basin assembly in the second position;

[0077] Figure 8 for Figure 4 A schematic diagram of the middle basin assembly returning to its initial position from the second position;

[0078] Figure 9 for Figure 4 A diagram illustrating the removal of feces using plastic bags pre-installed inside the CIMC feces storage compartment;

[0079] Figure 10 for Figure 4 Schematic diagram of fecal removal from CIMC's waste storage compartment;

[0080] Figure 11 for Figure 4 Convergence diagram of the mid-pelvis assembly Figure 1 ;

[0081] Figure 12 for Figure 4 Convergence diagram of the mid-pelvis assembly Figure 2 ;

[0082] Figure 13 A schematic diagram of Embodiment 2 of the present invention, which is equipped with a filter screen counterweight, in its initial position;

[0083] Figure 14 A schematic diagram of Embodiment 2 of the present invention, which is equipped with a filter screen counterweight, in the first position;

[0084] Figure 15 A schematic diagram of Embodiment 2, in which a filter screen counterweight is provided for the cat litter box of this utility model, is positioned in the second position;

[0085] Figure 16 A schematic diagram of Embodiment 2 of the present invention, which is equipped with a filter screen counterweight, returning from the second position to the initial position;

[0086] Figure 17 A schematic diagram of Embodiment 3 of the present invention, which is equipped with a flip-up plate, in its initial position;

[0087] Figure 18 A schematic diagram of Embodiment 3 of the present invention, which is equipped with a flip-up plate, in the first position;

[0088] Figure 19 A schematic diagram of Embodiment 3 of the present invention, which is equipped with a flip-up plate, in the second position;

[0089] Figure 20 A schematic diagram of Embodiment 3 of the present invention, which is equipped with a flip-up plate, returning from the second position to the initial position;

[0090] Figure 21 A schematic diagram of Embodiment 4 of the present invention, which is equipped with a soft pad, in its initial position;

[0091] Figure 22 A schematic diagram of Embodiment 4 of the present invention, which is equipped with a soft pad, in the first position;

[0092] Figure 23 A schematic diagram of Embodiment 4 of the present invention, which is equipped with a soft pad, in the second position;

[0093] Figure 24 A schematic diagram of Embodiment 4 of the present invention, which is equipped with a soft pad, returning from the second position to the initial position;

[0094] Figure 25 This is a cross-sectional schematic diagram of the working chamber in Embodiment 4 of this utility model;

[0095] Figure 26 for Figure 25 Enlarged view of part A in the image;

[0096] Figure 27 for Figure 26 A schematic diagram of the working chamber wall;

[0097] Figure 28 This is a cross-sectional schematic diagram of the working chamber in Embodiment 4 of this utility model, in which a soft plastic bag is used to replace the soft pad.

[0098] Figure 29 for Figure 28 Enlarged view of part B in the image;

[0099] Figure 30 This is a schematic diagram of the installation of the soft plastic bag in Embodiment 4 of this utility model;

[0100] Figure 31 This is a schematic diagram of removing the soft plastic bag in Embodiment 4 of this utility model;

[0101] Figure 32 A schematic diagram of Embodiment 5 of the present invention, which is equipped with a sand-cleaning structure for a cat litter box, in the closed state of the sand-discharging door;

[0102] Figure 33 A schematic diagram of Embodiment 5, which adds a sand-cleaning structure to the cat litter box of this utility model, with the sand-discharging door open;

[0103] Figure 34 A schematic diagram of Embodiment 5, in which the litter box of this utility model is equipped with a sand-cleaning structure, is in its initial position;

[0104] Figure 35 A schematic diagram of Embodiment 5, in which the litter box of this utility model is equipped with a sand-cleaning structure, is positioned in the first position;

[0105] Figure 36 A schematic diagram of Embodiment 5, which features a litter cleaning structure for the cat litter box of this utility model, in the third position;

[0106] Figure 37 This is a perspective view of the working chamber of the cat litter box in Embodiment 1 of this utility model, which is a closed container;

[0107] Figure 38 This is a cross-sectional schematic diagram of the working chamber of the cat litter box in Embodiment 1 of this utility model, which is a closed container;

[0108] Figure 39 A perspective view of embodiment 6 of the present invention, which is equipped with a support component for the cat litter box;

[0109] Figure 40 An exploded view of Embodiment 6, which includes a support assembly for the cat litter box of this utility model;

[0110] Figure 41 This is an exploded view of the support component in this utility model;

[0111] Figure 42 for Figure 41 A schematic diagram of the convergence of the central support components;

[0112] Figure 43 This is another exploded view of the support component in this utility model;

[0113] Figure 44 for Figure 43 A schematic diagram of the convergence of the central support components;

[0114] Figure 45 This is a schematic diagram of the cat litter box of this utility model in its normal packaging state;

[0115] Figure 46 This is a schematic diagram showing the cat litter box of this utility model in its packed state.

[0116] Figure 47 A perspective view of a support assembly with a roller support frame configured for Embodiment 6 of this utility model;

[0117] Figure 48 for Figure 47 A cross-sectional schematic diagram;

[0118] Figure 49 This is a perspective view of a support assembly with rollers mounted on a chassis structure, as described in Embodiment 6 of this utility model.

[0119] Figure 50 for Figure 49 A cross-sectional schematic diagram;

[0120] Figure 51 The relationship between power and operation in Embodiment 6 of this utility model Figure 1 ;

[0121] Figure 52 for Figure 51 A partial schematic diagram;

[0122] Figure 53 The relationship between power and operation in Embodiment 6 of this utility model Figure 2 ;

[0123] Figure 54 The relationship between power and operation in Embodiment 6 of this utility model Figure 3 ;

[0124] Figure 55 The relationship between power and operation in Embodiment 6 of this utility model Figure 4 . Detailed Implementation

[0125] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0126] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0127] Additionally, it should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Example 1

[0128] Reference Figure 1 , Figure 2 and Figure 3 In a non-limiting embodiment of the present invention, a cat litter box includes a litter box assembly. The litter box assembly includes a working chamber 100, a screening chamber 200, and a waste collection chamber 300. The screening chamber 200 and the waste collection chamber 300 form a first unit externally disposed within the working chamber 100. Under the action of a first external force, the litter box assembly rotates around its own rotation center; under the action of a second external force, the waste collection chamber 300 rotates around its own rotation center. In this embodiment, the rotation center of the litter box assembly is disposed on the working chamber 100, as shown below. Figure 1 and Figure 2 As shown, of course, the rotation center of the basin assembly can also be as follows: Figure 3The configuration shown is on the screening chamber 200. The following description uses the example of the rotating center of the basin assembly being located on the working chamber 100 for further explanation. In this embodiment, the screening chamber 200 and the waste collection chamber 300 form a first unit, that is, the screening chamber 200 and the waste collection chamber 300 are combined to form an integral component structure. The first unit is externally located in the working chamber 100, effectively ensuring that the working space of the working chamber 100 is not occupied by the screening chamber 200 and the waste collection chamber 300, allowing the entire working space of the working chamber 100 to be used by the pet. This avoids and solves the problem in the prior art where the screening chamber 200 and the waste collection chamber 300 occupy the working space within the working chamber 100. Compared with the prior art, this technical solution can... This invention's litter box is suitable for larger pets. It primarily consists of a basin assembly comprising a working chamber 100, a screening chamber 200, and a collection chamber 300. The screening chamber 200 and the collection chamber 300 form a first unit external to the working chamber 100. This litter box has a simple and rationally distributed structure. Specifically, when the basin assembly is in its initial position, the collection chamber 300 is located directly above the screening chamber 200. This structural distribution ensures that both the screening chamber 200 and the collection chamber 300 are located outside the working chamber 100. Compared to existing technologies, this structural distribution... This invention effectively avoids the problem of the waste collection chamber 300 occupying the upper space of the working chamber 100 in the prior art, and completely opens the upper space of the working chamber 100, allowing the working chamber 100 to accommodate larger pets. In the litter box of this invention, the basin assembly can rotate around the rotation center of the basin assembly under the action of a first external force, and the waste collection chamber 300 rotates around its own rotation center under the action of a second external force. During operation, the working chamber 100, the screening chamber 200, and the waste collection chamber 300 in the basin assembly rotate under the action of the first external force. The litter box 300 rotates around the center of rotation of the basin assembly together with the working chamber 100 and the screening chamber 200. At the same time, the litter box 300 also rotates around its own center of rotation under the action of the first external force. This not only ensures that the cat feces 120 in the working chamber 100 can fall directly and smoothly into the litter box 300 during operation, but also effectively saves the guide or connecting parts between the working chamber 100 and the litter box 300 compared with the existing technology, making the structure of the litter box more simplified.

[0129] Reference Figure 1 , Figure 2 , Figures 5 to 8 In a non-limiting embodiment of the present invention, the litter box of the present invention features a dual-operation configuration where the waste collection chamber 300 both revolves and rotates. Revolution occurs when the waste collection chamber 300, along with the screening chamber 200 and the working chamber 100, rotates as part of the litter box assembly. Rotation occurs when the waste collection chamber 300 rotates along with the screening chamber 200 and the working chamber 100, ensuring that the opening of the waste collection chamber 300 remains upward-facing regardless of whether the litter box assembly is in the initial, first, or second position. Figures 5 to 8The process of cleaning cat feces is shown. When the basin assembly rotates from the initial position to the first position, the screening chamber 200 is located at the lowest position of the basin assembly. Cat litter 110 falls from the working chamber 100 into the screening chamber 200, while cat feces 120 remains in the working chamber 100. When the basin assembly rotates from the first position to the second position, the feces collection chamber 300 is located at the lowest position of the basin assembly. At this time, the opening of the feces collection chamber 300 is upwardly distributed, and cat feces 120 rolls from the working chamber 100 into the feces collection chamber 300 under the action of gravity. When the litter box assembly rotates in reverse, returning from the second position to the first position, the opening of the collection chamber 300 is also facing upwards, and the cat feces 120 are retained in the collection chamber 300. When the litter box assembly continues to return from the first position to the initial position, the cat litter 110 returns from the screening chamber 200 to the working chamber 100. Since the opening of the collection chamber 300 is also facing upwards at this time, the cat feces 120 already collected in the collection chamber 300 remain in the collection chamber 300, effectively solving the problem of cat feces 120 falling from the collection chamber 300 back to the working chamber 100 in the prior art. This structural configuration and operation mode of the litter box of the present invention can ensure that the collected and being collected cat feces 120 do not fall out of the collection chamber 300 throughout the entire process, whether the litter box assembly is in the initial position, the first position, or the second position.

[0130] Reference Figure 1 , Figure 2 In a non-limiting embodiment of the present invention, the basin assembly is composed of the working chamber 100, the screening chamber 200 and the feces collection chamber 300 connected in sequence. The screening chamber 200 and the feces collection chamber 300 are connected to form a first unit, and the first unit is connected to the working chamber 100 to form the basin assembly. In this embodiment, the basin assembly is composed of a working chamber 100, a screening chamber 200, and a stool collection chamber 300 connected in sequence. Specifically, the screening chamber 200 and the stool collection chamber 300 are first configured as a component structure, that is, the stool collection chamber 300 is installed on the screening chamber 200 to form a first unit. In this embodiment, the two ends of the stool collection chamber 300 are pivotally connected to the screening chamber 200. The pivot point between the stool collection chamber 300 and the screening chamber 200 is the first pivot center 310. The first pivot center 310 is located above the center of gravity 320 of the stool collection chamber 300, and the stool collection chamber 300 can rotate along the pivot center. Then, the screening chamber 200 in the first unit of the component structure is connected to the working chamber 100 to form the basin assembly. The basin assembly of the present invention has few components, a simple structure, and is easy to assemble and disassemble.

[0131] Reference Figure 1 , Figure 2In a non-limiting embodiment of the present invention, the working chamber 100 is preferably a basin-shaped container. In this embodiment, a certain amount of cat litter 110 is loaded inside the working chamber 100. After the pet enters the space of the working chamber 100, it completes its excrement disposal and burying of excrement in this area. The working chamber 100 is configured as a basin-shaped container with an open structure at the top, providing a large working space suitable for pets of different sizes, thus offering good applicability. Of course, in addition to the aforementioned basin-shaped container, the working chamber 100 can also be configured as... Figure 37 and Figure 38 The enclosed container shown has an opening on one side of the work chamber 100 for the cat to enter and exit.

[0132] Reference Figure 1 , Figure 2 In a non-limiting embodiment of the present invention, the screening chamber 200 is a container with an enclosed outer periphery. A selectively passable opening is provided on the side of the screening chamber 200 adjacent to the working chamber 100, and a filter screen 210 is disposed at the opening. In this embodiment, the screening chamber 200 is selectively enclosed, so that the screening chamber 200 is disposed outside the working chamber 100, ensuring that the screening chamber 200 can be placed outside the working chamber 100. The selectively passable opening of the screening chamber 200 and the placement of the filter screen 210 at the opening are such that the edge of the filter screen 210 is fixed to the opening of the screening chamber 200. The pore size of the filter screen 210 is smaller than the size of pet feces 120 but larger than the size of cat litter 110, allowing cat litter 110 to freely enter and exit the screening chamber 200 through the filter screen 210, while pet feces 120 is blocked and cannot enter the screening chamber 200.

[0133] Reference Figure 1 , Figure 2 , Figures 4 to 8 In a non-limiting embodiment of the present invention, the screening chamber 200 is provided with an extension 220. In this embodiment, the upper contour wall of the screening chamber 200 is an arc-shaped wall that cooperates with the stool collection chamber 200. The two end side walls of the screening chamber 200 extend and extend along the arc-shaped wall to form the extension 220. The extension 220 extends from the top contour of the screening chamber 200 to one side located in the working chamber, so that the upper part of the screening chamber 200 forms an accommodating space, and the stool collection chamber 300 is disposed in the accommodating space. The configuration of the extension 220 makes the stool collection chamber 300, after being placed in the accommodating space, form a first unit with the screening chamber 200 as an integral structure. The stool collection chamber 300 is placed in the upper accommodating space of the screening chamber 200, and only the outline shape of the screening chamber 200 is visible from the outside. This not only increases the aesthetic appearance of the first unit, but also improves the stability of the stool collection chamber 300 and the screening chamber 200 during transportation, preventing the stool collection chamber 300 from falling out of the first unit.

[0134] Reference Figure 1 , Figure 2 , Figures 4 to 8In a non-limiting embodiment of the present invention, the waste collection chamber 300 is a box-shaped container with an opening, and both ends of the waste collection chamber 300 are pivotally connected to the extension 220 of the screening chamber 200. In this embodiment, the lower part of the waste collection chamber 300 is an arc-shaped box bottom, which is consistent with the arc-shaped top contour of the screening chamber 200, ensuring that the waste collection chamber 300 does not collide with the arc-shaped top contour of the screening chamber 200 during its rotation. The waste collection chamber 300 is pivotally connected to the extension 220, which allows the waste collection chamber 300 to revolve around the basin assembly under the action of a first external force, while simultaneously rotating around its pivot axis under its own weight, i.e., a second external force. This keeps the opening of the box-shaped container waste collection chamber 300 facing upwards, ensuring that the waste collection chamber 300 can smoothly collect pet feces 120, while preventing the collected pet feces 120 from rolling back into the working chamber 100.

[0135] Reference Figures 4 to 8In a non-limiting embodiment of the present invention, the extension 220 is provided with an end cap 230, which movably closes the opening of the feces collection chamber 300. In this embodiment, the end cap 230 on the extension 220 is configured such that when the basin assembly is in the initial position, the opening of the feces collection chamber 300 corresponds to the position of the end cap 230. At this time, the opening of the feces collection chamber 300 is located directly below the end cap 230, and the end cap 230 closes the opening of the feces collection chamber 300, which can prevent the odor of pet feces 120 in the feces collection chamber 300 from spreading. When the basin assembly moves from its initial position to the first position and further from the first position to the second position under the action of a first external force, the waste collection chamber 300 and the end cap 230, driven by the extension 220, revolve around the rotation center of the basin assembly together with the entire basin assembly. Simultaneously, the waste collection chamber 300 also rotates around its own rotation center under the action of a second external force. During this rotation, the opening of the waste collection chamber 300 moves away from the position of the end cap 230. During this process, the opening of the waste collection chamber 300 is no longer directly below the end cap 230; instead, it extends beyond the end cap 230, meaning the end cap 230 no longer closes the opening, and the opening gradually becomes open. When the basin assembly reaches the second position, the open portion of the waste collection chamber 300 connects to the outer wall of the screening chamber 200 facing the rotation center of the basin assembly, allowing it to receive the rolling pet feces 120. When the basin assembly returns from the second position to the initial position, the opening of the waste collection chamber 300 aligns again with the end cap 230, and the opening of the waste collection chamber 300 returns to directly below the end cap 230 and is closed by the end cap 230. With the support of the end cap 230, this invention achieves two technical effects simultaneously: First, it prevents pet feces 120 already collected in the waste collection chamber 300 from repeatedly entering and exiting the chamber during cleaning, thus avoiding contamination of the inner wall of the basin assembly and exacerbating odor; Second, when the basin assembly is in the initial position, the waste collection chamber 300 is closed by the end cap 230, blocking odor emission and preventing pet feces from attracting or breeding insects. In this embodiment, the initial position is in standby mode during user use. The basin assembly only leaves the initial position after the pet has used it and the cleaning process begins. Therefore, the configuration of the end cap 230 in this embodiment ensures that the product is in the initial position most of the time, effectively blocking odor emission.

[0136] Reference Figures 4 to 10 In a non-limiting embodiment of the present invention, the end cap 230 is movably connected to the extension 220. In this embodiment, the end cap 230 and the extension 220 are rotatably connected, so that when the waste collection chamber 300 is full of pet feces 120, the user can remove the pet feces 120 in real time by opening the end cap 230; furthermore, the waste collection chamber 300 can be configured as follows... Figure 9As shown, a pre-laid, fixed plastic bag is provided. When removing pet feces 120, the user can remove the pet feces 120 along with the plastic bag, pack it up, and dispose of it. Or as... Figure 10 As shown, after the user opens the end cover 230, the connection between the collection chamber 300 and the extension 220 is released, and the collection chamber 300 is further removed to clean and remove the pet feces 120 in the collection chamber 300 and to clean the collection chamber 300 more thoroughly.

[0137] Reference Figure 11 , Figure 12 In a non-limiting embodiment of the present invention, when the working chamber 100 is configured as an open, basin-shaped container, the first unit is detachably connected to the working chamber 100. After detachment, the first unit can be nested within the working chamber 100. In this embodiment, the end walls of the screening chamber 200 and the working chamber 100 on adjacent sides can be as follows: Figure 11 As shown, the screening chamber 200 and the working chamber 100 can be detachably connected via adjusting parts or fasteners. Figure 12 The shown connection is a plug-in detachable connection. Of course, the screening chamber 200 and the working chamber 100 can also be connected in other detachable ways. In this embodiment, the outer contour dimension of the first unit is smaller than the inner contour dimension of the working chamber 100. Specifically, the outer contour dimension of the screening chamber 200 is smaller than the inner contour dimension of the working chamber 100. The waste collection chamber 300 is located inside the extension 220 of the screening chamber 200. At the same time, the first unit is detachably connected to the working chamber 100. The structural configuration of this invention allows the litter box to be detached from the working chamber 100 when it is not used for a long time, in storage, or during transportation. Then, the first unit can be nested inside the working chamber 100, so that the outer contour of the working chamber 100 is the overall outer contour of the litter box assembly. That is, the volume of the litter box assembly is reduced to be the same as that of the working chamber 100, which greatly reduces the space occupied by the litter box during storage and transportation. With the same storage and transportation space, more litter boxes can be stored or placed, thereby effectively saving storage and transportation costs.

[0138] Reference Figure 11 , Figure 12 In a non-limiting embodiment of the present invention, the outer contour of the side of the first unit away from the working chamber 100 is adapted to the shape of the inner bottom of the working chamber 100, so that after the first unit is placed in the working chamber 100, the fit between the first unit and the working chamber 100 is more appropriate, and the basin assembly is more stable during storage and transportation. Example 2

[0139] Reference Figures 13 to 16This embodiment is basically the same in structure and principle as Embodiment 1, except that a first counterweight 211 is configured on the filter screen 210 in this embodiment. The filter screen 210 is located on one side of the working chamber 100 with the first counterweight 211 configured thereon, and the filter screen 210 is movably connected to the screening chamber 200. In this embodiment, one side of the filter screen 210 is pivotally connected to the opening of the screening chamber 200, and the other side is a movable end. This configuration allows the movable end to rotate along its pivot center under the gravity of the first counterweight 211 to close the opening of the screening chamber 200, so that cat litter 110 and cat feces 120 can selectively enter the screening chamber 200 through the filter screen 210. It also allows the movable end to rotate along its pivot center to a flipped state under the gravity of the first counterweight 211, so that small particles of pet feces 120 remaining on the filter screen 210 can be shaken off into the collection chamber. Specifically, when the basin assembly is in the initial position, the positions of the filter screen 210 and the first counterweight 211 are both below the pivot point. The first counterweight 211 acts on the filter screen 210, and under the action of the first counterweight 211, the center of gravity of the filter screen 210 is located on the side away from the screening chamber 200. This makes the filter screen 210 adhere tightly to the opening of the screening chamber 200 under the action of gravity, which can further prevent the filter screen 210 from encroaching on the space of the working chamber 100 under the action of gravity. Figures 13 to 16 The diagram illustrates the cat feces cleaning process when a first counterweight 211 is added to the filter 210. Specifically, when the basin assembly moves from the initial position to the first position, the center of gravity of the filter 210, under the action of the counterweight, is located to the left of the pivot point. The filter 210 remains in close contact with the opening of the screening chamber 200 under the action of gravity. At this time, cat litter 110 enters the screening chamber 200 through the filter 210, while pet feces 120 remain in the working chamber 100 or stay on the upper surface of the filter 210 or the outer wall of the screening chamber 200. When the basin assembly moves from the first position to the second position, the filter 210 and the counterweight are located above the pivot point. Under the action of the counterweight, the center of gravity of the filter 210 is still located on the side away from the screening chamber 200 from the pivot point. At this time, the filter 210 pivots and opens to a position away from the opening due to gravity, thereby thoroughly shaking off any small particles of pet feces 120 that may remain attached to the filter 210, achieving the technical effect of improving filtration efficiency. In addition, since the water absorption rate of cat litter 110 varies in different applications, it may break into small pieces of pet feces 120 during the cleaning process. These pieces of feces 120, which are close to or slightly larger than the pore size of filter screen 210, may get stuck on the mesh of filter screen 210 and not fall off in time. They may also stick to filter screen 210 because cat litter 110 has a low water absorption rate. In order to improve the filtration efficiency of pet feces 120, a matching design solution for filter screen 210 is needed. It is necessary to make filter screen 210 shake once during operation to get rid of the residual pet feces 120 pieces stuck to filter screen 210. The configuration of the first counterweight 211 on filter screen 210 in this invention solves this problem very well. Example 3

[0140] Reference Figures 17 to 20 This embodiment is basically the same in structure and principle as Embodiments 1 and 2. The difference is that in this embodiment, a flap 400 is arranged adjacent to the screening chamber 200 and the feces collection chamber 300. The flap 400 is pivotally connected to the side walls at both ends of the screening chamber 200. During the actual research and development testing, the inventors found the following problem: When the basin assembly moves from the first position to the second position, some of the nearly spherical pet feces 120 or a small amount of loose cat litter 110 that has fallen off the pet feces 120 will roll and slide down before other shapes of pet feces 120. At this time, under the second force, the feces collection chamber 300 may not be able to move in time to fully receive these prematurely rolled pet feces 120 or loose cat litter 110, so as to prevent a small amount of pet feces 120 and loose cat litter 110 from entering the gap between the feces collection chamber 300 and the screening chamber 200 and not being completely collected into the feces collection chamber 300. Therefore, to solve this problem, the present invention provides a flap 400 located adjacent to the screening chamber 200 and the waste collection chamber 300. Figures 17 to 20 The diagram illustrates the cat feces cleaning process when a flip plate 400 is added to the litter box. When the litter box assembly is between its initial and first positions, the flip plate 400 is tilted upwards under gravity. This effectively blocks any prematurely falling cat feces 120 or loose cat litter 110, temporarily intercepting them on the side of the flip plate 400 away from the collection chamber 300. As the litter box assembly rotates further, when the opening of the collection chamber 300 rotates and contacts the flip plate 400, the flip plate 400 loses the support of the outer wall of the collection chamber 300 and lies flat against the outer wall of the screening chamber 200 under gravity. At this point, the pet feces 120, loose cat litter 110, and large pieces of pet feces 120 intercepted on the side of the flip plate 400 away from the collection chamber 300 slide across the surface of the flip plate 400 and enter the collection chamber 300. Example 4

[0141] Reference Figures 21 to 24This invention provides a non-limiting embodiment, which is a further improvement on any of the above embodiments 1 to 3. In this embodiment, a soft pad 130 is provided inside the working chamber 100. After the pet finishes defecating in the working chamber 100, if the cat litter 110 has insufficient absorbency or the amount of cat litter 110 is insufficient, the pet's urine may soak the cat litter 110 and stick to the bottom 150 of the working chamber. This will hinder the automatic cleaning of the litter box. For example, when the litter box assembly is already in the second position, the pet feces 120 stuck to the bottom 150 of the working chamber cannot fall off naturally under the action of gravity. Therefore, this invention provides a soft pad 130 at the bottom 150 of the working chamber. When the basin assembly moves to the second position, the soft pad 130 deforms under the action of gravity. The relatively hard pet feces 120 and cat litter 110 can no longer stick to the soft pad 130, thus achieving smooth separation under the action of gravity and rolling into the collection chamber 300. This prevents the cat litter 110 in the working chamber 100 from being soaked in urine, ensuring that the cat litter 110 in the working chamber 100 remains clean and greatly reducing the amount of work that users need to do to clean the working chamber 100.

[0142] Reference Figure 25 , Figure 26 , Figure 27In a non-limiting embodiment of the present invention, a fixing ring 131 is disposed at the edge of the cushion 130, and the working chamber 100 is formed by connecting the working chamber wall 140 and the working chamber bottom 150. The fixing ring 131 is clamped and fixed by the connecting part of the working chamber wall 140 and the working chamber bottom 150. In this embodiment, the working chamber 100 is a split structure, formed by connecting the working chamber wall 140 and the working chamber bottom 150 through a connector 160; and the fixing ring 131 is disposed at the edge of the cushion 130, and the fixing ring 131 is disposed at the connecting part of the working chamber wall 140 and the working chamber bottom 150, and is clamped and fixed by the working chamber wall 140 and the working chamber bottom 150. The present invention features a soft pad 130 with a fixing ring 131 and a split-structure working chamber 100. If the pet damages the soft pad 130, the user can remove the connector 160 between the working chamber wall 140 and the working chamber bottom 150, replace the soft pad 130, align the fixing ring 131 on the edge of the soft pad 130 between the working chamber wall 140 and the working chamber bottom 150, and then reinstall the connector 160 between the two, thereby replacing the soft pad 130 and avoiding the situation where the litter box cannot be used due to damage to the soft pad 130. To improve the connection between the working chamber wall 140 and the working chamber bottom 150, and the stability of the clamping and fixing ring 131 between the working chamber wall 140 and the working chamber bottom 150, this embodiment further provides an inwardly bent portion at the lower part of the working chamber wall 140. A stepped groove 141, distributed from the inside out, is provided in the middle of this bent portion. The groove on the inner side of the stepped groove 141 is a clamping groove, and the groove on the outer side is a connecting groove. The clamping groove and the connecting groove are connected together to form the stepped groove 141. With the clamping groove in place, the fixing ring 131 is first placed in the clamping groove, and then the working chamber wall 140 and the working chamber bottom 150 are connected together by the connector 160. This effectively clamps the fixing ring 131 in the connecting portion with the clamping groove, ensuring that the fixing ring 131 is stably clamped between the working chamber wall 140 and the working chamber bottom 150.

[0143] Reference Figures 28 to 31This invention provides a non-limiting embodiment that replaces the technical solution of configuring a soft pad 130 inside the working compartment 100. In this embodiment, a soft plastic bag 170 is configured inside the working compartment 100, which can be used as a garbage bag. This embodiment achieves the technical effect of configuring a soft pad 130 inside the working compartment 100 by configuring a soft plastic bag 170 inside the working compartment 100, and it is an alternative technical solution to configuring a soft pad 130 inside the working compartment 100. The soft plastic bag 170 in this invention is also a soft component, and it has the same function and technical effect as the aforementioned soft pad 130 configured inside the working compartment 100, in order to solve and alleviate the technical problem of cat litter 110 and urine mixing and sticking to the bottom 150 of the working compartment. Further, in this embodiment, the working chamber 100 is composed of a working chamber wall 140 and a working chamber bottom 150. A groove 190 and a pressure ring 180 are provided at the connection between the working chamber wall 140 and the working chamber bottom 150. The pressure ring 180 is detachably embedded in the groove 190. The opening of the soft plastic bag 170 is disposed between the groove 190 and the pressure ring 180, and the pressure ring 180 presses and fixes the soft plastic bag 170 within the groove 190. In this embodiment, the working chamber 100 has a working chamber wall 140 at its upper part and a working chamber bottom 150 at its lower part. A groove 190 is provided at the connection between the working chamber wall 140 and the working chamber bottom 150. The opening of the soft plastic bag 170 is positioned in the groove 190 and extends a certain distance beyond the groove 190. Then, by pressing the pressure ring 180 into the groove, the soft plastic bag 170 is stably fixed between the pressure ring 180 and the groove 190. During the use of a litter box, users need to perform certain maintenance tasks, one of which is adding cat litter 110 or completely replacing the cat litter 110 in the working chamber 100. This is because although cat litter 110 can adhere to pet feces 120 and form clumps, small, loose particles inevitably fall off during cleaning. These contaminated loose cat litter 110 particles gradually accumulate over time, causing the cat litter 110 to produce odors and also breeding mold and bacteria, leading to a deterioration in cleanliness. Therefore, it is necessary to regularly replace the cat litter 110 in the working chamber 100. However, litter boxes are large, and in existing technologies, replacing cat litter 110 involves using hand tools to remove it in batches or lifting the entire box assembly to empty it into the trash can, which is very inconvenient. The technical solution proposed in this invention is to set a pressure ring 180 inside the working chamber 100 that can hold a soft plastic bag 170, and then lay cat litter 110 on the soft plastic bag 170. When the user needs to completely replace the cat litter 110, remove the pressure ring 180, and then use the soft plastic bag 170 to remove all the cat litter 110 as a whole. Then replace it with a new soft plastic bag 170 and put it into the working chamber 100. The operation is convenient and quick, and it also reduces the maintenance burden of cleaning the bottom of the working chamber 100. Example 5

[0144] Reference Figures 32 to 36 This invention is a non-limiting embodiment, which is a further improved embodiment of any of the embodiments 1 to 4 described above. In this embodiment, the litter box further includes a sand cleaning structure 500, which is disposed above the filter screen 210 on the screening chamber 200 and adjacent to the feces collection chamber 300. As described above, during use, the litter box requires periodic replacement of the litter 110 in the working chamber 100. The traditional operation is to remove the working chamber 100 for manual cleaning, or to place a soft pad 130 or a soft plastic bag 170 inside the working chamber 100 and clean it by replacing the soft pad 130 or the soft plastic bag 170. This embodiment provides a technical solution in which a sand-cleaning structure 500 is configured above the filter screen 210 of the screening chamber 200 and adjacent to the waste collection chamber 300. This sand-cleaning structure 500 allows cat litter 110 to enter and exit the waste collection chamber 300 through the sand-cleaning structure 500. During the rotation of the basin assembly, the cat litter 110 automatically falls into the waste collection chamber 300, achieving automatic cleaning of the cat litter 110 and meeting the user's maintenance needs for replacing the cat litter 110. Further, in this embodiment, the sand-cleaning structure 500 includes one or more sand discharge ports 510, and each sand discharge port 510 is equipped with a sand discharge door 520 for opening or closing the sand discharge port 510. In this embodiment, as... Figures 32 to 34 The litter box cleaning structure 500 is shown to be discharging litter. The configuration of the litter discharge port 510 in the litter box 500 allows the litter 110 in the working chamber 100 to first pass through the filter screen 210 into the screening chamber 200 during the rotation of the litter box assembly from the initial position to the first position and then from the first position to the third position. The litter 110 then passes through the screening chamber 200 through the litter discharge port 510 and falls into the waste collection chamber 300. The configuration of the litter discharge door 520 allows the litter discharge port 510 to be opened when the user needs to replace the litter 110, ensuring that the litter 110 enters the waste collection chamber 300 during the rotation of the litter box assembly to achieve litter cleaning. When the litter box is in use, the litter discharge door 520 is in the closed position to prevent the litter 110 from falling from the litter discharge port 510 into the waste collection chamber 300. Example 6

[0145] Reference Figures 39 to 44This invention provides another litter box, which, based on any of the litter boxes in Embodiments 1 to 5, further includes a support component 600. That is, the litter box described in this embodiment includes a body assembly and a support component 600, with the body assembly pivotally connected to the support component 600. The support component 600 in this embodiment not only gives the litter box the advantages of simple structure, reasonable distribution, and large working space, but also the advantages of flexible, convenient, and labor-saving operation. Furthermore, it has greater applicability, allowing for manual cleaning of cat feces 120 or cat litter 110, or automatic cleaning of cat feces 120 or cat litter 110 through a drive structure.

[0146] Reference Figures 39 to 44 In a preferred embodiment of the litter box of the present invention, the support assembly 600 includes two oppositely distributed support walls 610 and a base structure 620. The two ends of the litter box assembly are pivotally connected to the support walls 610 on both sides, and the bottoms of the two support walls 610 are connected to opposite sides of the base structure 620. In this embodiment, the configuration of the two oppositely distributed support walls 610 in the support assembly 600 is used to pivotally connect the two ends of the litter box assembly, ensuring balanced support at both ends of the litter box assembly. This allows the litter box assembly to rotate smoothly, effortlessly, and easily when rotating along the center of the pivot hole 613 under the action of a first external force. In this embodiment, preferably, the two ends of the working chamber 100 in the litter box assembly are pivotally connected to the support walls 610, so that the rotation center of the litter box assembly is located in the working chamber 100; of course, it can also be... Figure 3 As shown, the two ends of the screening chamber 200 in the basin assembly are pivotally connected to the support wall 610, so that the rotation center of the basin assembly is located on the screening chamber 200. In this embodiment, the chassis structure 620 is configured to connect the two support walls 610 in the support assembly 600 to both sides of the chassis structure 620, so that the support walls 610 and the chassis structure 620 together form the support assembly 600, effectively ensuring the support stability of the support assembly 600. Furthermore, the connection of the two separate support walls 610 through the chassis structure 620 forms an integral component structure, which facilitates storage and transportation.

[0147] Reference Figures 41 to 46 In a non-limiting embodiment of the present invention, the support component 600 is a foldable or detachable structure, and the outer contour dimension of the folded or detached support component 600 is smaller than the inner contour dimension at the opening of the working chamber 100. In this embodiment, as... Figure 41 , 42As shown, when the support component 600 is preferably a foldable structure, the support wall 610 and the chassis structure 620 are movably connected to form a foldable structure. Specifically, in this embodiment, the support wall 610 and the chassis structure 620 are rotatably connected. Besides the folding solution, the support wall 610 and the chassis structure 620 can also be configured as a detachable structure with a movable connection, such as... Figure 43 , 44 As shown, the support wall 610 is plugged into the chassis structure 620, which also achieves the foldable structure's folding effect. In this embodiment, in addition to the mechanical structural connection, the support wall 610 and chassis structure 620 can also be equipped with movable electrical connection components. For example, when the support wall 610 and chassis structure 620 are plugged into each other, a USB plug 630 and a USB socket 640 can be configured. The USB plug 630 and USB socket 640 are respectively fixed at corresponding positions on the support wall 610 and chassis structure 620 to meet the communication and power supply needs between the electrical components configured on chassis structure 620 and support wall 610. In this embodiment, the support assembly 600 is configured as a foldable or detachable structure. During storage and transportation, the manufacturer can fold and store the support wall 610 and chassis structure 620 in the work compartment 100. After purchase, the user only needs to unfold and assemble it to achieve the usage state. The foldable structure of the support component 600 of this invention, combined with the configuration of the first unit integrating the screening chamber 200 and the waste collection chamber 300 in the litter box assembly, allows the first unit and the folded support component 600 to be placed sequentially in the working chamber during storage or transportation. The height of the folded litter box is approximately 1 / 3 to 1 / 2 of the height of the unfolded litter box, significantly reducing the height of the litter box and achieving a compact product packaging size. Figure 45 The packaging dimensions are shown for the product in its usage state. Figure 46 The packaging dimensions of the product in its folded state are shown. The folded packaging dimensions are approximately 1 / 3 to 1 / 2 the height of the packaging in its usable state, significantly reducing warehousing and transportation costs. As the average weight and size of cats show a year-on-year increasing trend, the space requirements for the product categories described in this case are also gradually increasing, and the costs of transporting and storing these products are also rising significantly. However, this contradicts the increasingly significant market competition. Therefore, achieving smaller storage and transportation volumes and reducing the use of packaging materials has greater commercial value and demand, and is also beneficial to environmental protection. In this embodiment, the support component 600 is preferably configured as a foldable structure, which not only achieves folding storage but also avoids the problem of easily lost parts after disassembly, as with detachable structures.

[0148] Reference Figure 47 , Figure 48In a non-limiting embodiment of the present invention, in addition to being configured to include two oppositely distributed support walls 610 and a chassis structure 620, the support component 600 may also be configured to include a support wall 610 and a set of roller support frames 630. One end of the basin assembly is pivotally connected to the support wall 610, and the other end is mounted on the roller support frame 630. This embodiment provides another support component 600 structure, wherein the upper support wall 610 is used to pivotally connect the basin assembly, allowing the basin assembly to rotate around the center of the pivot hole 613. Simultaneously, the basin assembly is mounted on the roller support frame 630. Specifically, the other side of the basin assembly is supported by rollers on the roller support frame 630. During the rotation of the basin assembly, the rollers on the roller support frame 630 rotate together with the basin assembly. Specifically, in this embodiment, the roller support frame 630 and the support wall 610 in the support assembly 600 are arranged in parallel. The support assembly 600 also includes a chassis structure 620. The support wall 610 is connected to one side of the chassis structure 620, and the roller support frame 630 is connected to the other side of the chassis structure 620. In this embodiment, the roller support frame 630 and the support wall 610 are respectively connected to both ends of the chassis structure 620. A fixed shaft extends inward from the roller support frame 630, and a rotatable roller is installed on the fixed shaft to support one end of the basin assembly. The support wall 610 connected to the other end of the chassis structure 620 is pivotally connected to the basin assembly to provide support for the rotation of the basin assembly.

[0149] Reference Figure 49 , Figure 50 In a non-limiting embodiment of the present invention, the support assembly 600 may be configured to include two oppositely distributed support walls 610 and a chassis structure 620, or to include a support wall 610 and a set of roller support frames 630. Alternatively, the support assembly 600 may be configured to include a support wall 610 and a chassis structure 620, with the support wall 610 connected to one side of the chassis structure 620 for pivotal connection with the basin assembly, providing support for the rotation of the basin assembly; one or more rollers are distributed on the side of the chassis structure 620 away from the support wall 610, the rollers protruding from the upper surface of the chassis structure 620 for supporting the basin assembly.

[0150] Reference Figures 39 to 50In a non-limiting embodiment of the present invention, the litter box with a support assembly is an intelligent litter box. Since users require cleaning of the litter box assembly, but the support assembly 600 contains electrical components and is unsuitable for cleaning, the present invention provides a split-connection structure support wall 610. The support wall 610 includes a support wall body 611 and a bearing 612 disposed above the support wall body 611. The bearing 612 is movably connected to the support wall body 611. In this embodiment, connecting grooves 614 are provided on both sides of the top of the support wall body 611. A pivot is disposed within the connecting groove 614. The connecting end 615 of the bearing 612 is rotatably connected to the pivot. The connecting end 615 is an arc-shaped opening groove structure that cooperates with the pivot, facilitating the installation and disassembly of the bearing 612 and the support wall body 611. After the bearing 612 and the support wall body 611 are connected, a pivot hole 613 is formed for pivotally connecting the working chamber 100. The configuration of the split-connection structure of the support wall 610 of this invention allows the user to remove the bearing 612 from the support wall body 611 when cleaning the basin assembly, and then remove the basin assembly from the support assembly 600, thus achieving the need for separate cleaning of the basin assembly without affecting the electrical components on the support assembly 600. Of course, for simpler and more convenient processing and installation, the support wall 610 can also be configured as a one-piece structure. In this case, a pivot hole 613 is provided at the pivot point between the support wall 610 and the working chamber 100. However, the drawback is that the basin assembly is not easily removed from the support assembly 600, causing inconvenience for separate cleaning of the basin assembly.

[0151] Reference Figure 39 , Figure 40 , Figures 47 to 50In a non-limiting embodiment of the present invention, the litter box further includes a control system. The first external force is generated by human power or by the first drive component 700. In this litter box, the litter box assembly can be directly driven to rotate by human power, or it can be driven by the first drive component 700 to achieve automated intelligent rotation. When the first external force is generated by the first drive component 700, the first drive component 700 is disposed on the support component 600 and connected to the control system. In this embodiment, the first drive component 700 includes a first motor 710 and a first gear assembly. The first motor 710 is fixed to the support component 600, one end of the first gear assembly is fixed to the output end of the first motor 710, and the other end is fixed to the litter box assembly. The first motor 710 drives the litter box assembly to rotate around its rotation center through the first gear assembly. Specifically, the first gear assembly includes a first driving gear 720 and a first driven gear 730 that mesh with each other. The first driving gear 720 is fixed to the output end of the first motor 710, and the first driven gear 730 is fixed to the basin assembly. The first motor 710 drives the first driving gear 720 to rotate, the first driving gear 720 drives the first driven gear 730 to rotate, and the first driven gear 730 in turn drives the basin assembly to rotate.

[0152] Reference Figure 39 , Figure 40 , Figures 47 to 55 In a non-limiting embodiment of the present invention, the second external force is generated by the gravity of the collection chamber 300 itself, or by the first drive component 700 transmitted and converted through the transmission component 900, or by the second drive component 800. The second drive component 800 includes a second motor 810 and a second gear assembly. The second motor 810 is fixed to the screening chamber 200. One end of the second gear assembly is fixed to the output end of the second motor 810, and the other end is fixed to the collection chamber 300. The second gear assembly includes a second driving wheel 820 and a second driven wheel 830 that mesh with each other.

[0153] When the second external force is generated by the weight of the collection chamber 300, refer to Figures 39 to 40 , Figures 47 to 50 The collection chamber 300 rotates around its own rotation center under the action of its own gravity as it rotates with the basin assembly.

[0154] When the second external force is generated by the second drive component 800, the second drive component 800 is connected to the control system in the same way as the first drive component 700, such as... Figure 51 and Figure 52As shown, the second drive assembly 800 is disposed on the screening chamber 200. Specifically, the second motor 810 is fixed on the screening chamber 200, the second drive wheel 820 is fixed on the output end of the second motor 810, and the second driven wheel 830 is fixed on the stool collection chamber 300. The second motor 810 drives the second drive wheel 820 to rotate, the second drive wheel 820 drives the second driven wheel 830 to rotate, and the second driven wheel 830 in turn drives the stool collection chamber 300 to rotate around its own rotation center. Of course, the second drive assembly 800 can also be configured as follows: Figure 53 As shown, the waste collection chamber 300 is configured to output force to the screening chamber 200, which in turn pushes the waste collection chamber 300 to rotate around its own rotation center. Specifically, the second motor 810 is fixed to the waste collection chamber 300, the second drive wheel 820 is fixed to the output end of the second motor 810, and the second driven wheel is fixed to the screening chamber 200 to output force to the screening chamber 200, which in turn pushes the waste collection chamber 300 to rotate around its own rotation center. In this embodiment, the configuration of the second drive component 800 allows the waste collection chamber 300 to rotate around its own rotation center in advance or with a delay. Specifically, before the basin assembly reaches the second position, the second drive component 800 can drive the waste collection chamber 300 to rotate, causing the opening of the waste collection chamber 300 to move in advance to a position where it connects with the outer wall surface of the screening chamber 200 on the side closest to the rotation center of the basin assembly. This avoids the defect that the spherical pet feces 120 and loose cat litter 110 that roll off prematurely cannot be completely collected in the waste collection chamber 300, achieving the same technical effect as the flip plate 400. In addition, the waste collection chamber 300 can be rotated manually without opening the flip cover to open the opening, facilitating the user's need to check whether the waste collection chamber 300 is full. The waste collection chamber 300 can also be shaken individually to make the pet feces 120 in the waste collection chamber 300 more evenly distributed. In addition to the above functions, it also assists in rotating the waste collection chamber 300 when gravity is insufficient, enabling it to reach the correct position.

[0155] Reference Figure 54 and Figure 55 When the second external force is generated by the first drive assembly 700 through the transmission assembly 900, the transmission assembly 900 is connected to both the first drive assembly 700 and the collection chamber 300. The transmission assembly 900 is a belt drive component. In this embodiment, the transmission assembly 900 is preferably a conveyor belt, with one end of the conveyor belt sleeved in the first drive assembly 700. Figure 54 The first drive wheel 720 shown or as Figure 55The first driven wheel 730 shown has one end fitted onto the rotating component 330 of the waste collection chamber 300, and the first driving wheel 720 or the first driven wheel 730 drives the rotating component 330 to rotate via a conveyor belt, thereby driving the waste collection chamber 300 to rotate around its rotation center, the first pivot center 310. Specifically, when the conveyor belt is fitted onto the first driven wheel 730, the rotating component 330 is rotated via a conveyor belt. Figure 54 When the first drive wheel 720 is shown, during the start of cleaning, the first motor 710 drives the first drive wheel 720 to rotate counterclockwise. The first drive wheel 720 drives the working chamber to rotate clockwise via the first driven wheel 730. At the same time, the first drive wheel 720 drives the collection chamber 300 to rotate counterclockwise via the conveyor belt. When the conveyor belt is fitted onto the first drive wheel 720, the first drive wheel 720 drives the collection chamber 300 to rotate counterclockwise. Figure 55 When the first driven wheel 730 is in operation, during the start of cleaning, the first motor 710 drives the first driving wheel 720 to rotate counterclockwise. The first driving wheel 720 drives the working chamber 100 to rotate clockwise through the first driven wheel 730. At the same time, the first driven wheel 730 drives the collection chamber 300 to rotate counterclockwise through the conveyor belt.

[0156] Reference Figure 39 and Figure 40 The litter box of the present invention also includes a sensing device, which is connected to the control system. The sensing device includes a first sensor 910 and / or a second sensor 920. The first sensor 910 and the second sensor 920 are electrically connected to the control board 930 in the control system, respectively. The first sensor 910 is disposed on the support assembly 600. Specifically, in this embodiment, the first sensor 910 is disposed on the chassis structure 620 on the side where the pet enters and exits, and is used to detect whether an animal or a person has entered or exited the litter box assembly and / or is near the litter box assembly. The first sensor 910 can be a gravity sensor, which determines whether the pet has entered or exited the litter box assembly by changing weight data; it can also be a microwave radar sensor, an ultrasonic ranging sensor, a pyroelectric sensor, an infrared sensor, etc. The system uses changes in light and radio wave signals to determine whether a pet has entered or exited the basin assembly. The second sensor 920 is mounted on the support assembly 600. Specifically, in this embodiment, the second sensor 920 is mounted on the support wall 610 to detect the relative position of the basin assembly and the support assembly 600. The second sensor 920 can be a position switch sensor, a Hall sensor mounted on the base and a magnet mounted on the basin assembly, a grating mounted on the basin assembly and an infrared grating sensor mounted on the base, etc. The system uses switch signals, magnetic field variables, and light variables to determine the position of the basin assembly, transmits this information to the control system to generate an action signal, and delivers the corresponding driving action to the drive assembly.

[0157] The above embodiments disclosed in this invention are merely illustrative or explanatory of the principles disclosed in this invention. For those skilled in the art, it will be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this invention, and all such changes should be included within the protection scope of this invention.

Claims

1. A cat litter box, characterized in that, include, A basin assembly includes a working chamber, a screening chamber, and a collection chamber. The screening chamber and the collection chamber form a first unit external to the working chamber. An extension is disposed on the screening chamber, and the collection chamber is internally housed within the extension. The extension is equipped with a movable end cap that closes the opening of the collection chamber. Under the action of the first external force, the basin assembly rotates around the rotation center of the basin assembly. The collection chamber rotates around its own rotation center under the action of a second external force.

2. The litter box according to claim 1, characterized in that, When the basin assembly rotates from the initial position to the first position, the screening chamber is at the lowest position of the basin assembly, and cat litter falls from the working chamber into the screening chamber, while cat feces remain in the working chamber. When the basin assembly rotates from the first position to the second position, the waste collection chamber is at its lowest position, and cat feces fall from the working chamber into the waste collection chamber.

3. The litter box according to claim 1 or 2, characterized in that, The basin assembly is composed of a working chamber, a screening chamber, and a waste collection chamber connected in sequence. The screening chamber and the waste collection chamber are connected to form a first unit, and the first unit is connected to the working chamber to form a basin assembly.

4. The litter box according to claim 1 or 2, characterized in that, The screening chamber is a closed container with an outer perimeter. The side of the screening chamber adjacent to the working chamber is provided with a selective passage opening, and a filter screen is provided at the opening.

5. The litter box according to claim 4, characterized in that, The filter screen is located on one side of the working chamber and is equipped with a first counterweight. The filter screen is movably connected to the screening chamber.

6. The litter box according to claim 4, characterized in that, A flap is installed next to the screening chamber and the stool collection chamber.

7. The litter box according to claim 1 or 2, characterized in that, The waste collection chamber is a box-shaped container with an opening, and both ends of the waste collection chamber are pivotally connected to the extension of the screening chamber.

8. The litter box according to claim 7, characterized in that, The first unit is detachably connected to the working chamber. After detachment, the first unit can be nested inside the working chamber.

9. The litter box according to claim 8, characterized in that, The outer contour of the first unit on the side away from the working chamber is adapted to the shape of the inner bottom of the working chamber.

10. The litter box according to claim 9, characterized in that, The end cap is movably connected to the extension.

11. The litter box according to claim 1 or 2, characterized in that, The working chamber is a basin-shaped container.

12. The litter box according to claim 1 or 2, characterized in that, The work compartment is equipped with soft padding.

13. The litter box according to claim 12, characterized in that, The edge of the cushion is provided with a fixing ring, and the working chamber is formed by connecting the working chamber wall and the working chamber bottom. The fixing ring is clamped and fixed by the connection part of the working chamber wall and the working chamber bottom.

14. The litter box according to claim 1 or 2, characterized in that, The work compartment is equipped with soft plastic bags.

15. The litter box according to claim 14, characterized in that, The working chamber consists of a working chamber wall and a working chamber bottom. The connection between the working chamber wall and the working chamber bottom is provided with a groove and a pressure ring. The pressure ring is detachably embedded in the groove. The opening of the soft plastic bag is disposed between the groove and the pressure ring. The pressure ring presses and fixes the soft plastic bag in the groove.

16. The litter box according to claim 4, characterized in that, It also includes a sand-cleaning structure, which is disposed above the filter screen in the screening chamber and adjacent to the feces collection chamber.

17. The litter box according to claim 16, characterized in that, The sand removal structure includes one or more sand discharge ports, and each sand discharge port is equipped with a sand discharge door for opening or closing the sand discharge port.

18. A cat litter box, characterized in that, The basin assembly includes the basin assembly according to any one of claims 1 to 17, and further includes a support assembly, the basin assembly being pivotally connected to the support assembly.

19. The litter box according to claim 18, characterized in that, The support assembly includes two oppositely distributed support walls, and the two ends of the basin assembly are respectively pivotally connected to the support walls on both sides.

20. The litter box according to claim 19, characterized in that, The support assembly also includes a chassis structure, with two support walls connected to opposite sides of the chassis structure.

21. The litter box according to claim 18, characterized in that, The support assembly includes a support wall and a set of roller support frames. One end of the basin assembly is pivotally connected to the support wall, and the other end is mounted on the roller support frames.

22. The litter box according to claim 21, characterized in that, The roller support frame is a chassis structure, with one or more rollers distributed on one side of the roller support frame, and the other side of the roller support frame is connected to the support wall.

23. The litter box according to claim 18, characterized in that, The support assembly includes a support wall and a chassis structure. One end of the basin assembly is pivotally connected to the support wall, and the other end is mounted on the chassis structure.

24. The litter box according to any one of claims 19 to 23, characterized in that, The support wall is an integrally formed structure, and a pivot hole is provided at the pivot joint between the support wall and the working chamber. Alternatively, the support wall can be a split connection structure, comprising a support wall body and a bearing bush disposed above the support wall body. The bearing bush is movably connected to the support wall body, and the connection between the bearing bush and the support wall body forms a pivot hole for pivotally connecting the working chamber.

25. The litter box according to claim 24, characterized in that, The support component is a foldable or detachable structure, and the outer contour dimension of the folded or detached support component is smaller than the inner contour dimension at the opening of the working chamber.

26. The litter box according to claim 25, characterized in that, The first external force is generated by human power or by a first driving component, wherein, The first drive component is configured on the support component and is used to drive the basin component to rotate around its rotation center; or the basin component can be driven to rotate around its rotation center directly by human power.

27. The litter box according to claim 26, characterized in that, The second external force is generated by the gravity of the waste collection chamber itself, or by the first drive assembly through the transmission assembly, or by the second drive assembly. When the second external force is generated by the gravity of the collection chamber itself, the collection chamber rotates around its own rotation center under the action of its own gravity as it rotates with the basin assembly. When the second external force is generated by the second driving component, the second driving component is disposed on the screening chamber and is used to drive the collection chamber to be placed around its own rotation center; or, the second driving component is disposed on the collection chamber and is used to output a force to the screening chamber, which in turn pushes the collection chamber to rotate around its own rotation center. When the second external force is generated by the first drive component through the transmission component, the transmission component is connected to the first drive component and the collection chamber respectively.

28. The litter box according to claim 27, characterized in that, It also includes a sensing device and a control system, wherein the sensing device and the first driving component are respectively connected to the control system, and the sensing device includes a first sensor and / or a second sensor, wherein... The first sensor is disposed on the support assembly and is used to detect whether an animal or a person enters or exits the basin assembly and / or approaches the basin assembly; the second sensor is disposed on the support assembly and is used to detect the relative position of the basin assembly and the support assembly.

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