Cat litter basin

Abstract

The cat litter basin 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 externally arranged in the working bin, and the basin body assembly rotates around the rotating center of the basin body assembly under the action of a 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 invention 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 rotatable, 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, meanwhile, a user can clean the cat litter basin conveniently, and the cleaning workload of the user is greatly reduced.

Description

Technical Field

[0001] The invention relates to a cat excrement cleaning device, in particular to a cat litter box. Background Art

[0002] Among the existing automatic cat litter boxes, the drum-type automatic cat litter box based on the gravity screening principle is popular among consumers due to its simple structure and stable performance, and occupies the main market. The existing drum-type cat litter box sets the screening and feces collection functions in the drum, and the feces collection space and the working space are connected. This structural setting has the following shortcomings: 1. The screening space and the feces collection space must occupy the drum space, that is, the pet's working space, resulting in low utilization of the working space, and in most cases, a guide or connecting piece needs to be configured between the feces collection space and the working space so that cat feces can fall from the working space into the feces collection space during operation of the cat litter box; 2. During the cleaning process, the feces that have been stored in the feces collection space may roll from the feces collection space to the working space during the cleaning process. During the cleaning operation, the feces that roll out of the feces collection space will be collected into the feces collection space together with the newly generated cat feces. This process causes the stored cat feces to repeatedly enter and exit the connecting port between the feces collection space and the working space, causing the inner wall of the drum to be repeatedly contaminated, resulting in the accumulation of odor. 1. The weight increases, and the frequency of cleaning the cat litter box increases; 2. In order to provide cats with enough space for going to the toilet, the drum-type automatic cat litter box is usually very large, and the machine parts cannot be folded or self-stored. It can only be transported in the state of use during storage and transportation. The internal space of the machine cannot be effectively utilized, resulting in high storage and transportation costs, especially for long-distance transportation (such as product export). The transportation cost will account for more than half of the value of the product itself; 3. Due to the limitations of shape or volume, the existing cat litter box can only hold less cat litter, and the thickness of the cat litter is also relatively shallow, resulting in a small effective area for cats to go to the toilet, making it easier for cats to excrete on the shallow sand surface, which easily causes feces to stick to the bottom, making it impossible to automatically clean the feces, and increasing the time for users to manually clean. Summary of the Invention

[0003] The purpose of the present invention is to provide a cat litter box with a simple structure, reasonable distribution, high working space utilization, clean cat feces, and convenient for users to clean, thereby greatly reducing the cleaning workload of users.

[0004] The present invention discloses a cat litter box, comprising: The basin assembly includes a working chamber, a screening chamber and a feces collecting chamber, wherein the screening chamber and the feces collecting chamber form a first unit and are externally arranged to the working chamber, wherein: The basin assembly rotates around the rotation center of the basin assembly under the action of the first external force. The feces collecting bin rotates around its own rotation center under the action of the second external force.

[0005] In this embodiment, the screening bin and the feces collection bin form a first unit, that is, the screening bin and the feces collection bin are combined together to form an integral component structure, and the first unit is placed outside the working bin, which effectively ensures that the working space of the working bin is not occupied by the screening bin and the feces collection bin, so that the working space of the working bin is entirely available for pets to use. Compared with the existing technology, this technical solution can adapt to the use of pets with larger bodies; the cat litter box of the present invention is mainly composed of a basin body assembly consisting of a working bin, a screening bin and a feces collection bin, wherein the screening bin and the feces collection bin form a first unit outside the working bin, and the cat litter box has a simple structure and a reasonable distribution. Specifically, when the basin body assembly is in the initial position, the feces collection bin is located directly above the screening bin. This structural distribution ensures that the screening bin and the feces collection bin are both located outside the working bin. Compared with the existing technology, this structural distribution effectively avoids the feces collection bin occupying the upper space of the working bin in the existing technology. The problem is solved by completely opening the upper space of the working bin, so that the working bin can adapt to larger pets; in the cat litter box of the present invention, the basin body assembly can rotate around the rotation center of the basin body assembly under the action of a first external force, and the feces collecting bin rotates around the rotation center of the feces collecting bin itself under the action of a second external force. During operation, the working bin, screening bin and feces collecting bin in the basin body assembly rotate together around the rotation center of the basin body assembly under the action of the first external force, that is, the feces collecting bin revolves around the rotation center of the basin body assembly together with the working bin and screening bin, and at the same time, the feces collecting bin rotates around its own rotation center under the action of the first external force. This not only ensures that the cat feces in the working bin can directly and smoothly fall into the feces collecting bin during operation, but also effectively saves the guide parts or connecting parts between the working bin and the feces collecting bin compared to the existing technology, so that the structure of the cat litter box is simpler.

[0006] The feces collection bin of the cat litter box of the present invention has a dual-operation configuration of both revolution and rotation. Revolution refers to the rotation of the feces collection bin together with the screening bin and the working bin as a bowl assembly. Rotation refers to the rotation of the feces collection bin along with the screening bin and the working bin. This allows the opening of the feces collection bin to remain upwardly distributed regardless of whether the bowl assembly is in the initial position, the first position, or the second position. When the bowl assembly rotates from the initial position to the first position, the screening bin is at the lowest position of the bowl assembly, cat litter falls from the working bin into the screening bin, and cat feces remains in the working bin. When the bowl assembly rotates from the first position to the second position, the feces collection bin is at the lowest position of the bowl assembly. At this time, the opening of the feces collection bin is upwardly distributed, and cat feces rolls from the working bin into the feces collection bin under the action of gravity. When the basin assembly is in reverse operation, when the basin assembly returns from the second position to the first position, the opening of the feces collection bin is also distributed upward, and the cat feces are retained in the feces collection bin; when the basin assembly continues to return from the first position to the initial position, the cat litter returns from the screening bin to the working bin. Since the opening of the feces collection bin is also distributed upward at this time, the cat feces that have been collected in the feces collection bin are still retained in the feces collection bin, which effectively solves the problem of cat feces falling from the feces collection bin back to the working bin in the prior art. The structural configuration and operation mode of the cat litter box of the present invention can ensure that the problem of cat feces that have been collected or are being collected falling out of the feces collection bin can be avoided throughout the entire process, whether the basin assembly is in the initial position, the first position, or the second position.

[0007] Furthermore, the basin assembly is composed of the working chamber, the screening chamber and the feces collecting chamber connected in sequence, wherein the screening chamber and the feces collecting chamber are connected to form a first unit, and the first unit is connected to the working chamber to form the basin assembly.

[0008] In this embodiment, the basin assembly is composed of a working chamber, a screening chamber, and a feces collection chamber, which are sequentially connected. Specifically, the screening chamber and the feces collection chamber are first configured as a component structure, with the feces collection chamber mounted on the screening chamber to form a first unit. The screening chamber in the first unit of the component structure is then connected to the working chamber to form the basin assembly. The basin assembly of the cat litter box of the present invention has a small number of overall components, a simple structure, and is easy to assemble and disassemble.

[0009] Furthermore, the screening chamber is a container with a closed outer periphery, and a selective opening is provided on a side of the screening chamber adjacent to the working chamber, and a filter is provided at the opening.

[0010] In this embodiment, the screening chamber is selected to form an enclosed container on the outer periphery, so that the screening chamber is arranged outside the working chamber, that is, to ensure that the screening chamber can be placed outside the working chamber; the screening chamber has a selective opening and a filter at the opening, and the pore size of the filter is smaller than the size of pet feces and larger than the size of cat litter, so that the cat litter passing through the opening can freely enter and exit the screening chamber through the filter, while the pet feces is blocked and cannot enter the screening chamber.

[0011] As a preferred technical solution of the present invention, the filter is provided with a first counterweight on one side of the working chamber, and the filter is movably connected to the screening chamber.

[0012] 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, the filter screen and the first counterweight are both positioned below the pivot point. The first counterweight acts on the filter screen, and under the action of the first counterweight, the filter screen's center of gravity is located away from the screening chamber. This allows the filter screen to cling to the screening chamber opening under the action of gravity, further preventing the filter screen from encroaching on the working chamber space due to gravity. When the basin assembly moves from the initial position to the first position, the filter is under the action of the counterweight, and its center of gravity is located on the left side of the pivot point. The filter is still under the action of gravity and is tightly attached to the opening of the screening bin. At this time, cat litter enters the screening bin through the filter, while pet feces is retained in the working bin or on the filter or the upper surface of the outer wall of the screening bin; when the basin assembly moves from the first position to the second position, the filter and the counterweight are located above the pivot point. Under the action of the counterweight, the center of gravity of the filter is still located on the side of the pivot point away from the screening bin. At this time, the filter is pivoted open to a position away from the opening due to gravity, so as to completely shake off the small particles of pet feces that may remain attached to the filter, thereby achieving the technical effect of improving the filtration efficiency. In addition, since the water absorption rate of cat litter actually used varies, it may be broken into small pet feces during the cleaning process. These feces fragments, which are close to or slightly larger than the filter mesh diameter, may be stuck on the filter mesh and cannot fall off in time. The cat litter may also adhere to the filter mesh due to its low water absorption rate. In order to improve the filtration efficiency of pet feces, a matching design solution is needed for 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 on the filter mesh. The configuration of the first counterweight on the filter mesh in the present invention solves this problem very well.

[0013] As a preferred technical solution of the present invention, a flap is provided adjacent to the screening bin and the feces collecting bin.

[0014] During the actual research and development testing process, the following problems were 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 falls off the pet feces will roll and slide before pet feces of other shapes. At this time, the feces collection bin may not be able to move in time under the second force to fully receive these pre-rolled pet feces or loose cat litter, so as to prevent a small amount of pet feces and loose cat litter from entering the gap between the feces collection bin and the screening bin and not being completely collected in the feces collection bin. Therefore, in order to solve this problem, the present invention configures a flap adjacent to the screening bin and the feces collection bin. The flap is configured so that when the basin assembly is between the initial position and the first position, the flap is in a tilted state under the action of gravity. This state can effectively block cat feces or scattered cat litter that rolls down prematurely, and temporarily intercept it on the side of the flap away from the feces collection bin; as the basin assembly rotates further, when the feces collection bin opening rotates and contacts the flap, the flap loses the support of the outer wall of the feces collection bin, and lies flat and adheres to the outer wall of the screening bin under the action of gravity. At this time, the pet feces and scattered cat litter intercepted on the side of the flap away from the feces collection bin, as well as large pieces of pet feces, slide over the surface of the flap and enter the feces collection bin.

[0015] Furthermore, the screening bin is provided with an extension portion.

[0016] In this embodiment, the extension extends from the top contour of the screening chamber toward one side of the working chamber, forming a storage space above the screening chamber. The feces collection chamber is disposed within this storage space. The extension allows the feces collection chamber to form a first unit with the screening chamber after placement in the storage space. This not only enhances the aesthetics of the first unit but also improves the stability of the feces collection chamber and screening chamber during transportation, preventing the feces collection chamber from falling out of the first unit.

[0017] Furthermore, the feces collecting bin is a box-shaped container with an opening, and both ends of the feces collecting bin are pivotally connected to the extension portion of the screening bin.

[0018] In this embodiment, the feces collection bin is configured as a box-shaped container, with both ends pivotally connected to the extension. The feces collection bin and the extension are pivotally connected so that the feces collection bin revolves along the basin assembly under the action of a first external force, while the feces collection bin rotates about its pivot axis under the action of its own weight, i.e., a second external force. This keeps the opening of the feces collection bin of the box-shaped container facing upward, thereby ensuring that the feces collection bin can smoothly collect pet feces and preventing collected pet feces from rolling back into the working bin.

[0019] Furthermore, the first unit is detachably connected to the working chamber, and after detachment, the first unit can be nested and placed in the working chamber.

[0020] In this embodiment, the outer contour of the first unit is smaller than the inner contour of the working bin. Specifically, the outer contour of the screening bin is smaller than the inner contour of the working bin. The feces collection bin is located inside the extension of the screening bin. At the same time, the first unit is detachably connected to the working bin. The structural configuration of the present invention allows the first unit to be removed from the working bin when the litter box is not in use for a long time or is in storage or transportation, and then nested in the working bin. The outer contour of the working bin is the overall outer contour of the basin assembly, that is, the volume of the basin assembly is reduced to the same as that of the working bin, greatly reducing 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.

[0021] Furthermore, the outer contour of the side of the first unit away from the working chamber is adapted to the shape of the inner bottom of the working chamber.

[0022] In this embodiment, the first unit is configured to match the shape of the working bin, so that after the first unit is placed in the working bin, the first unit and the working bin fit together better, making the basin assembly more stable during storage and transportation.

[0023] Furthermore, the extension portion is provided with an end cover, and the end cover is movably closed to close the opening of the feces collecting bin.

[0024] In this embodiment, the configuration of the extension end cap allows the feces collection bin opening to align with the end cap when the basin assembly is in the initial position, sealing the end cap and preventing the spread of odor from pet feces. As the basin assembly rotates from the initial position to the first position and further to the second position under the action of a first external force, the feces collection bin and the end cap, driven by the extension, revolve around the basin assembly's rotational center. Simultaneously, the feces collection bin rotates around its own rotational center under the action of the second external force, causing the feces collection bin opening to move away from the position of the end cap during this rotation. This means that the end cap no longer seals the feces collection bin opening, gradually opening. When the basin assembly reaches the second position, the open portion of the feces collection bin opening connects to the outer wall of the screening bin facing the basin assembly's rotational center, allowing it to receive falling pet feces. When the basin assembly returns from the second position to the initial position, the feces collection bin opening once again aligns with the end cap and is sealed by the end cap. With the support of the end cover, the present invention achieves two technical effects at the same time: first, it prevents pet feces collected in the feces collection bin from repeatedly entering and exiting the feces collection bin during the cleaning process, contaminating the inner wall of the basin assembly and causing the odor to increase; second, when the basin assembly is in the initial position, the feces collection bin is closed by the end cover to block the odor and prevent pet feces from attracting or breeding insects; in the user's use environment, the initial position of this embodiment is the standby state, and only after the pet uses it and enters the cleaning stage, the basin assembly will leave the initial position. Therefore, the configuration of the end cover of this embodiment is that the product is in the initial position most of the time, which can effectively block the odor.

[0025] Furthermore, the end cover is movably connected to the extension portion.

[0026] In this embodiment, the end cap is pivotally connected to the extension portion. When the collection bin is full of pet feces, the user can remove the pet feces immediately by opening the end cap. Furthermore, a plastic bag can be pre-placed in the collection bin. When removing pet feces, the user can remove the pet feces together with the plastic bag and pack and discard them. Alternatively, after opening the end cap and releasing the pivotal connection between the collection bin and the extension portion, the collection bin can be removed, the pet feces in the collection bin can be removed, and the collection bin can be cleaned more thoroughly.

[0027] Furthermore, the working chamber is a basin-shaped container.

[0028] In this embodiment, a certain amount of cat litter is loaded inside the working chamber. After the pet enters the working chamber, it defecates and buries its excrement in this area. The working chamber is configured as a basin-shaped container with an open structure. Its large working space is suitable for pets of different sizes and has good adaptability.

[0029] As a preferred embodiment of the cat litter box of the present invention, a soft cushion is provided in the working chamber.

[0030] After the pet finishes defecating in the working bin, if the cat litter has insufficient water absorption capacity or the amount of cat litter put in is small, the pet's urine may soak the cat litter and stick to the bottom of the working bin, which will bring obstacles to the automatic cleaning of the cat litter box. For example, when the basin assembly is already in the second position, the pet feces stuck to the bottom of the working bin cannot fall off naturally under the action of gravity. Therefore, the present invention lays a soft pad at the bottom of the working bin. When the basin assembly moves to the second position, the soft pad is deformed under the action of gravity. The relatively hard pet feces and cat litter adhesion cannot continue to stick to the soft pad, and then can be smoothly peeled off under the action of gravity and roll down to the feces collection bin, greatly reducing the workload of the user in cleaning the working bin.

[0031] Furthermore, a fixing ring is provided at the edge of the cushion, the working chamber is formed by connecting a working chamber wall and a working chamber bottom, and the fixing ring is clamped and fixed by the connecting portion of the working chamber wall and the working chamber bottom.

[0032] In this embodiment, the working chamber is a split structure, consisting of a working chamber wall and a working chamber bottom connected by a connector; and a fixing ring is configured at the edge of the soft cushion. The fixing ring is configured at the connection portion of the working chamber wall and the working chamber bottom, and is clamped and fixed by the working chamber wall and the working chamber bottom. The configuration of the soft cushion with a fixing ring and the split working chamber structure of the present invention allows the user to remove the connector between the working chamber wall and the working chamber bottom, replace the soft cushion, and align the fixing ring configured on the edge of the soft cushion between the working chamber wall and the working chamber bottom. Then, the connector between the two can be restored to the original position, thereby completing the replacement of the soft cushion and avoiding the situation where the cat litter box cannot be used due to the soft cushion being damaged.

[0033] As a preferred embodiment of the cat litter box of the present invention, a soft plastic bag is provided in the working chamber.

[0034] This embodiment is an alternative technical solution to replace the soft pad configured in the working bin. The present invention configures a soft plastic bag in the working bin. The soft plastic bag is also a soft component and has the same function and technical effect as the aforementioned soft pad configured in the working bin. It is used to solve and alleviate the technical problem of cat litter and urine being mixed and fixedly adhered to the bottom of the working bin.

[0035] Furthermore, the working bin is composed of a working bin wall and a working bin bottom, and the connecting part of the working bin wall and the working bin bottom is provided with a groove and a pressure ring, and the pressure ring is detachably embedded in the groove; the opening of the soft plastic bag is arranged between the groove and the pressure ring, and the pressure ring presses the soft plastic bag and fixes it in the groove.

[0036] In this embodiment, the upper portion of the working chamber is the working chamber wall, and the lower portion 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 placed in the groove, and then the soft plastic bag is fixed between the pressing ring and the groove by pressing the pressing ring into the groove. While using the cat litter box, users need to perform certain maintenance tasks, 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 agglomerated solids, it is inevitable that small particles of the litter will fall off during the cleaning process. These contaminated, loose cat litter particles gradually accumulate over time, causing the cat litter to produce an unpleasant odor and breed mold and bacteria, causing the cleaning process to deteriorate. Therefore, regular replacement of the cat litter in the working chamber is necessary. However, cat litter boxes are large in size, and in the prior art, replacing cat litter requires the use of handheld tools to remove the litter in batches, or by lifting the entire bowl assembly and dumping it into a trash can, which is very inconvenient. The technical solution proposed in this invention is to install a pressure ring inside the working chamber to hold a soft plastic bag, and then lay cat litter on the soft plastic bag. When the user needs to completely replace the cat litter, they remove the pressure ring and use the soft plastic bag to remove all the cat litter. Then, they can replace the soft plastic bag and put it into the working chamber. This is not only convenient and quick to operate, but also reduces the maintenance burden of cleaning the bottom of the working chamber.

[0037] As a preferred embodiment of the cat litter box of the present invention, the cat litter box further comprises a sand cleaning structure, which is arranged above the filter screen on the screening bin and adjacent to the feces collection bin.

[0038] As described above, during the use of the cat litter box, the cat litter in the working chamber needs to be replaced regularly. Traditionally, the working chamber is removed for manual cleaning, or a soft pad or soft plastic bag is placed in the working chamber and cleaned by replacing the soft pad or soft plastic bag. This embodiment provides a technical solution, which configures a sand cleaning structure above the filter screen on the screening chamber and adjacent to the feces collection chamber. The configuration of the sand cleaning structure allows the cat litter to enter and exit the feces collection chamber through the sand cleaning structure. During the rotation of the basin assembly, the cat litter automatically falls into the feces collection chamber, thereby realizing the automatic cleaning of the cat litter and the maintenance needs of the user to replace the cat litter.

[0039] Furthermore, the sand cleaning structure includes more than one sand discharge port, and the sand discharge port is provided with a sand discharge movable door for opening or closing the sand discharge port.

[0040] In this embodiment, the configuration of the sand discharge port in the sand cleaning structure enables the cat litter in the working bin to first pass through the filter screen from the working bin to enter the screening bin, and then pass through the sand discharge port on the screening bin to fall into the feces collection bin during the process of the basin body assembly rotating from the initial position to the first position and then from the first position to the third position; the configuration of the sand discharge movable door allows the user to open the sand discharge port to leak out of the screening bin when the cat litter needs to be replaced, thereby ensuring that the cat litter enters the feces collection bin to be cleaned when the basin body assembly rotates; when the cat litter basin is in use, the sand discharge movable door is in the closed state to prevent the cat litter from falling into the feces collection bin from the sand discharge port.

[0041] The present invention also discloses another cat litter box. This litter box, based on the aforementioned litter box, further includes a support assembly, to which the basin assembly is pivotally connected. The arrangement of the support assembly in this embodiment provides the litter box with not only the advantages of a simple structure, reasonable distribution, and a large workspace, but also the advantages of flexible, convenient, and labor-saving operation. Furthermore, the litter box is more adaptable, allowing for manual cleaning of cat feces or litter, as well as automatic cleaning of cat feces or litter via a drive structure.

[0042] As a preferred embodiment of the cat litter box of the present invention, the support assembly includes two oppositely distributed support walls, and both ends of the basin body assembly are pivotally connected to the support walls on both sides.

[0043] In this embodiment, the configuration of the 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 can operate smoothly and labor-savingly when it rotates along the center of the pivot hole under the action of the first external force.

[0044] Furthermore, the support assembly further includes a chassis structure, and the two support walls are respectively connected to two opposite sides of the chassis structure.

[0045] In this embodiment, the configuration of the chassis structure connects the two supporting walls in the supporting assembly to the two sides of the chassis structure respectively, so that the supporting walls and the chassis structure together form a supporting assembly, effectively ensuring the supporting stability of the supporting assembly, and the two scattered supporting walls are connected through the chassis structure to form an overall assembly structure, which is convenient for warehousing and transportation.

[0046] As a preferred embodiment of the cat litter box of the present invention, the support assembly includes a support wall and a group of roller support frames, one end of the basin body assembly is pivotally connected to the support wall, and the other end is mounted on the roller support frame.

[0047] The present invention also provides a support assembly solution. This embodiment provides another support assembly structure, wherein the upper support wall is used to pivot the basin assembly so that the basin assembly rotates around the center of the pivot hole. At the same time, the basin assembly is mounted on a roller support frame, and the other side of the basin assembly is supported by the roller on the roller support frame. During the rotation of the basin assembly, the roller on the roller support frame rotates with the basin assembly.

[0048] Furthermore, this embodiment also provides another support assembly structure, wherein the support assembly includes a support wall and a chassis structure, wherein the support wall is connected to one side of the chassis structure, and one or more rollers are distributed on the side of the chassis structure away from the support wall, and the rollers protrude from the upper surface of the chassis structure and are used to support the basin assembly. The other side of the chassis structure is connected to the support wall, and the support wall is used to be pivotally connected to the basin assembly to provide support for the rotation of the basin assembly.

[0049] Furthermore, the support wall is an integrally formed structure, and a pivot hole is provided at the pivotal connection between the support wall and the working chamber. The configuration of the integrally formed support wall makes processing and installation simpler and more convenient.

[0050] Because users require the basin assembly to be cleaned, and the support assembly is equipped with electrical components and is not suitable for cleaning, the present invention further provides a support wall with a split connection structure, wherein the support wall includes a support wall body and a bearing shell disposed above the support wall body, the bearing shell being movably connected to the support wall body, and the bearing shell and the support wall body being connected to form a pivot hole for pivoting the working chamber. The configuration of the support wall with a split connection structure of the present invention allows the user to remove the bearing shell in the support wall from the support wall body when cleaning the basin assembly, and then remove the basin assembly from the support assembly, thereby achieving the need to clean the basin assembly separately without affecting the electrical components on the support assembly.

[0051] Furthermore, the support assembly is a foldable structure or a detachable structure, and the outer contour of the folded support assembly or the detached support assembly is smaller than the inner contour of the basin mouth of the working chamber. When the support assembly is a foldable structure, the support wall and / or the 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 the roller support frame are movably connected to the chassis structure, and in addition to the movable connection between the support wall and the chassis at the mechanical structure level, there are also movable electrical connection components, such as a USB plug and a USB socket respectively fixed at the corresponding positions of the support wall and the chassis, for realizing the communication and power supply requirements between the electrical components configured on the chassis and the support wall. In this embodiment, the support assembly is configured as a foldable structure or a detachable structure. During storage and transportation, the manufacturer can fold the support wall and the chassis and place them in the working chamber. After purchase, the user only needs to simply unfold and assemble them to realize the use state. Compact product packaging reduces storage and transportation costs. As the average weight and size of cats increase year by year, the space requirements for the product categories described in this case are also increasing, and the costs of transporting and storing such products are also rising significantly. However, this is inconsistent with the increasingly competitive market. Therefore, achieving a smaller storage and transportation volume and reducing the use of packaging materials has greater commercial value and demand, and is also beneficial to environmental protection. This embodiment preferably configures the support assembly as a foldable structure, which not only enables folding and storage but also avoids the problem of parts being easily lost after disassembly, as in the case of a detachable structure.

[0052] Furthermore, the first external force is generated by human power or a first drive component, wherein the first drive component is configured on the support component to drive the basin body component to rotate around its rotation center; or human power directly drives the basin body component to rotate around its rotation center.

[0053] In this embodiment, the first drive assembly includes a first motor and a first gear assembly. The first motor is fixed to the support assembly. One end of the first gear assembly is fixed to the output terminal of the first motor, and the other end is fixed to the basin assembly. The first motor drives the basin assembly to rotate about its rotation center via the first gear assembly. In the cat litter box of the present invention, the basin assembly can be rotated directly by human power or automatically and intelligently by the first drive assembly.

[0054] Furthermore, the second external force is generated by the weight of the feces collecting bin itself or by the first driving component through the transmission component or by the second driving component, wherein: When the second external force is generated by the weight of the feces collecting bin itself, the feces collecting bin rotates around its own rotation center under the action of its own weight during the rotation of the basin assembly; When the second external force is generated by the second driving assembly, the second driving assembly is configured on the screening bin to drive the feces collecting bin to be placed around its own rotation center; or, the second driving assembly is configured on the feces collecting bin to output a force to the screening bin, so that the screening bin pushes the feces collecting bin in reverse to rotate around its own rotation center; specifically, the second driving assembly includes a second motor and a second gear assembly, the second motor is fixed on the screening bin, one end of the second gear assembly is fixed on the output end of the second motor, and the other end is fixed on the feces collecting bin; the second driving assembly can also be configured on the feces collecting bin, at this time, the second motor is fixed on the feces collecting bin, one end of the second gear assembly is fixed on the output end of the second motor, and the other end is fixed on the screening bin for outputting a force to the screening bin, so that the screening bin pushes the feces collecting bin in reverse to rotate around its own rotation center. Rotation; In this embodiment, the configuration of the second drive assembly can drive the feces collection bin to rotate around its own rotation center in advance or lag. Specifically, before the basin body assembly reaches the second position, the second drive assembly can drive the feces collection bin to rotate, so that the feces collection bin opening runs in advance to a position connected with the outer wall surface of the screening bin close to the rotation center of the basin body assembly, thereby avoiding the defect that spherical pet feces and loose cat litter that roll down in advance cannot be completely collected in the feces collection bin, which is equivalent to the technical effect brought by the flap; in addition, the feces collection bin can be rotated and the feces collection bin opening can be opened by manual instruction without opening the flip cover, so that the user can check whether the feces collection bin is full; the feces collection bin can also be shaken separately to make the pet feces in the feces collection bin more evenly distributed; In addition to the above functions, it also has the function of assisting the rotation of the feces collection bin when gravity is insufficient so that it can reach the correct position; 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 feces collection bin respectively. The transmission component is a belt transmission component. In this embodiment, the conveyor belt is preferably used 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 drive component, and the other end is sleeved on the second driven wheel in the second drive component. The first driving wheel or the first driven wheel drives the second driven wheel to rotate through the conveyor belt, thereby driving the feces collection bin to rotate around its rotation center.

[0055] Furthermore, the cat litter box of the present invention further comprises a sensing device and a control system, wherein the sensing device and the first driving assembly are respectively connected to the control system, and the sensing device comprises a first sensor and / or a second sensor, wherein: The first sensor is configured on the support assembly to detect whether an animal or a 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 enters or exits the basin assembly by changes in weight data. Alternatively, the first sensor may be a microwave radar sensor, an ultrasonic ranging sensor, a pyroelectric sensor, an infrared sensor, or the like, which uses changes in light obstruction reflection signals or radio obstruction reflection variables to determine whether a pet enters or exits the basin assembly. The second sensor is configured on the support assembly and is used to detect the relative position status 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 status of the basin assembly is judged by means of switch signals, magnetic field variables, and light variables, and the action signal is transmitted to the control system to generate an action signal, which is then delivered to the drive assembly to execute the corresponding drive action.

[0056] Compared with the prior art, the present invention has the following beneficial effects: First, the working space utilization rate is high. The first unit of the overall component structure formed by the screening bin and the feces collection bin is placed outside the working bin, which effectively ensures that the working space of the working bin is not occupied by the screening bin and the feces collection bin, so that the working space of the working bin is fully available for pets to use, avoiding and solving the problem of the screening bin and the feces collection bin occupying the working space in the working bin in the prior art. Compared with the prior art, this technical solution can adapt to the use of pets with larger bodies.

[0057] Second, the structure is rationally distributed. The cat litter box of the present invention is mainly composed of a basin body assembly consisting of a working chamber, a screening chamber, and a feces collection chamber. The screening chamber and the feces collection chamber form a first unit and are located outside the working chamber. The cat litter box has a rational structure. Specifically, when the basin body assembly is in the initial position, the feces collection chamber is located directly above the screening chamber. This structural distribution ensures that both the screening chamber and the feces collection chamber are located outside the working chamber. Compared with the existing technology, this structural distribution effectively avoids the problem of the feces collection chamber occupying the space above the working chamber in the existing technology, completely opening up the space above the working chamber.

[0058] Third, the structure is simple. During operation, the present invention's basin assembly, consisting of the working chamber, screening chamber, and feces collection chamber, rotates together around the basin assembly's rotation center under the action of a first external force. That is, the feces collection chamber orbits around the basin assembly's rotation center along with the working chamber and screening chamber. Simultaneously, the feces collection chamber rotates around its own rotation center under the action of the first external force. This structural configuration allows cat feces in the working chamber to fall directly into the feces collection chamber during operation. Compared to existing technologies, this eliminates the need for guides or connecting members between the working chamber and the feces collection chamber, simplifying the litter box structure.

[0059] Fourth, the feces collection bin of the present invention features a dual-operation configuration, with both orbital and autorotational motion. The orbital motion involves the collection bin rotating together with the screening bin and the working bin as a basin assembly, while the autorotation occurs as the collection bin rotates with the screening bin and the working bin. This ensures that the opening of the collection bin remains facing upward, regardless of whether the basin assembly is in the initial, first, or second positions. This structural configuration and operational mode of the present invention ensures that both collected and currently collected cat feces are prevented from falling out of the collection bin, regardless of whether the basin assembly is in the initial, first, or second positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a perspective view of a cat litter box embodiment 1 of the present invention; Figure 2 A cross-sectional diagram showing the center of rotation of the basin assembly being arranged on the working chamber; Figure 3 A cross-sectional diagram showing the center of rotation of the basin assembly being disposed on the screening bin; Figure 4 A perspective view of a cat litter box with an end cover on the screening bin; Figure 5 for Figure 4 Schematic diagram of the middle basin assembly in the initial position; Figure 6 for Figure 4 a schematic diagram of the middle basin assembly in a first position; Figure 7 for Figure 4 a schematic diagram of the middle basin assembly in a second position; Figure 8 for Figure 4 A schematic diagram of the middle basin assembly returning from the second position to the initial position; Figure 9 for Figure 4 Schematic diagram of the plastic bags pre-installed in the CIMC silo for removing feces; Figure 10 for Figure 4 Schematic diagram of feces removal in CIMC feces bin; Figure 11 for Figure 4 Schematic diagram of the retracted middle basin assembly Figure 1 ; Figure 12 for Figure 4 Schematic diagram of the retracted middle basin assembly Figure 2 ; Figure 13 Schematic diagram of Example 2 of the cat litter box of the present invention equipped with a filter counterweight in the initial position; Figure 14Schematic diagram of Example 2 of the cat litter box of the present invention configured with a filter counterweight in a first position; Figure 15 Schematic diagram of Example 2 of the cat litter box of the present invention equipped with a filter counterweight in the second position; Figure 16 Schematic diagram of Example 2 of the cat litter box of the present invention equipped with a filter counterweight returning from the second position to the initial position; Figure 17 Schematic diagram of Example 3 of the cat litter box of the present invention equipped with a flap in the initial position; Figure 18 Schematic diagram of Example 3 of the cat litter box of the present invention equipped with a flap in a first position; Figure 19 Schematic diagram of Example 3 of the cat litter box of the present invention equipped with a flap in the second position; Figure 20 Schematic diagram of Example 3 of the cat litter box equipped with a flap of the present invention returning from the second position to the initial position; Figure 21 Schematic diagram of Example 4 of the cat litter box of the present invention equipped with a soft pad in the initial position; Figure 22 Schematic diagram of Example 4 of the cat litter box of the present invention equipped with a soft pad in a first position; Figure 23 Schematic diagram of Example 4 of the cat litter box of the present invention equipped with a soft pad in the second position; Figure 24 Schematic diagram of Example 4 of the cat litter box equipped with a soft pad of the present invention returning from the second position to the initial position; Figure 25 Schematic cross-sectional view of the working chamber in Example 4 of the present invention; Figure 26 for Figure 25 A magnified view of part A in FIG; Figure 27 for Figure 26 Schematic diagram of the middle working chamber wall; Figure 28 A schematic cross-sectional view of a working chamber in which a soft plastic bag replaces a soft cushion in Example 4 of the present invention; Figure 29 for Figure 28 A magnified view of part B in FIG; Figure 30 This is a schematic diagram of installing a soft plastic bag according to embodiment 4 of the present invention; Figure 31 This is a schematic diagram of removing a soft plastic bag according to embodiment 4 of the present invention; Figure 32 Schematic diagram of Example 5 of the cat litter box of the present invention equipped with a sand cleaning structure with the sand discharge door closed; Figure 33 Schematic diagram of Example 5 of the cat litter box with a litter cleaning structure added according to the present invention, with the litter door open; Figure 34 A schematic diagram of Example 5 of the cat litter box of the present invention equipped with a litter cleaning structure in an initial position; Figure 35 A schematic diagram of a cat litter box equipped with a litter cleaning structure according to embodiment 5 of the present invention in a first position; Figure 36 A schematic diagram of a cat litter box equipped with a litter cleaning structure in a third position according to embodiment 5 of the present invention; Figure 37 This is a three-dimensional diagram of a cat litter box embodiment 1 of the present invention, in which the working chamber is a closed container; Figure 38 Schematic cross-sectional view of a cat litter box embodiment 1 of the present invention in which the working chamber is a closed container; Figure 39 A perspective view of a sixth embodiment of the cat litter box of the present invention equipped with a support assembly; Figure 40 An exploded view of Example 6 of a cat litter box equipped with a support assembly according to the present invention; Figure 41 is an exploded schematic diagram of the support assembly in the present invention; Figure 42 for Figure 41 Schematic diagram of the retracted middle support assembly; Figure 43 It is another structural decomposition schematic diagram of the support assembly in the present invention; Figure 44 for Figure 43 Schematic diagram of the retracted middle support assembly; Figure 45 This is a schematic diagram of the packing of the cat litter box of the present invention in a normal state; Figure 46 This is a schematic diagram of the cat litter box of the present invention in a folded state; Figure 47 A perspective view of a support assembly with a roller support frame configured for embodiment 6 of the present invention; Figure 48 for Figure 47 Schematic cross-section diagram; Figure 49 A perspective view of a support assembly with rollers mounted on a chassis structure according to embodiment 6 of the present invention; Figure 50 for Figure 49 Schematic cross-section diagram; Figure 51 The relationship between power and operation in Example 6 of the present invention Figure 1 ; Figure 52 for Figure 51A partial schematic diagram in ; Figure 53 The relationship between power and operation in Example 6 of the present invention Figure 2 ; Figure 54 The relationship between power and operation in Example 6 of the present invention Figure 3 ; Figure 55 The relationship between power and operation in Example 6 of the present invention Figure 4 . DETAILED DESCRIPTION

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0062] 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 rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0063] Additionally, it should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings. Example 1

[0064] Reference Figure 1 、 Figure 2 and Figure 3 In a non-limiting embodiment of the present invention, a cat litter box includes a basin assembly, wherein the basin assembly includes a working chamber 100, a screening chamber 200, and a feces collection chamber 300. The screening chamber 200 and the feces collection chamber 300 form a first unit external to the working chamber 100, wherein the basin assembly rotates around the rotation center of the basin assembly under the action of a first external force; and the feces collection chamber 300 rotates around the rotation center of the feces collection chamber 300 itself under the action of a second external force. In this embodiment, the rotation center of the basin assembly is configured on the working chamber 100, as shown in FIG. Figure 1 and Figure 2 As shown, of course, the rotation center of the basin assembly can also be as shown Figure 3As shown, it is configured on the screening bin 200. The following description will be expanded by taking the configuration of the rotation center of the basin assembly on the working bin 100 as an example. In this embodiment, the screening bin 200 and the feces collection bin 300 form a first unit, that is, the screening bin 200 and the feces collection bin 300 are combined together to form an integral component structure. The first unit is placed outside the working bin 100, effectively ensuring that the working space of the working bin 100 is not occupied by the screening bin 200 and the feces collection bin 300, so that the working space of the working bin 100 is all available for pets to use, avoiding and solving the problem of the screening bin 200 and the feces collection bin 300 occupying the working space in the working bin 100 in the prior art. Compared with the prior art, this technical solution can The cat litter box of the present invention is mainly composed of a basin body component consisting of a working bin 100, a screening bin 200 and a feces collection bin 300, wherein the screening bin 200 and the feces collection bin 300 form a first unit and are arranged outside the working bin 100. The cat litter box has a simple structure and a reasonable distribution. Specifically, when the basin body component is in the initial position, the feces collection bin 300 is located directly above the screening bin 200. This structural distribution ensures that the screening bin 200 and the feces collection bin 300 are both located outside the working bin 100. Compared with the prior art, this structural distribution is simple. The present invention effectively avoids the problem that the feces collecting bin 300 occupies the upper space of the working bin 100 in the prior art, and completely opens the upper space of the working bin 100, so that the working bin 100 can adapt to pets of larger sizes; in the cat litter box of the present invention, the basin assembly can rotate around the rotation center of the basin assembly under the action of a first external force, and the feces collecting bin 300 rotates around the rotation center of the feces collecting bin 300 itself under the action of a second external force. During operation, the working bin 100, the screening bin 200 and the feces collecting bin 300 in the basin assembly rotate under the action of the first external force. The first external force is applied to the working bin 100 and the screening bin 200, and the feces collecting bin 300 rotates around the rotation center of the basin assembly together. At the same time, the feces collecting bin 300 rotates around its own rotation center under the action of the first external force. This not only ensures that the cat feces 120 in the working bin 100 can directly and smoothly fall into the feces collecting bin 300 during operation, but also effectively saves the guide parts or connecting parts between the working bin 100 and the feces collecting bin 300 compared to the prior art, so that the structure of the cat litter box is simpler.

[0065] Reference Figure 1 、 Figure 2 、 Figures 5 to 8 In a non-limiting embodiment of the present invention, the feces collecting bin 300 in the cat litter box of the present invention has a dual operation configuration of both revolution and rotation. Revolution means that the feces collecting bin 300 rotates together with the screening bin 200 and the working bin 100 as a bowl assembly. Rotation means that the feces collecting bin 300 rotates with the screening bin 200 and the working bin 100, so that the opening of the feces collecting bin 300 remains upward regardless of whether the bowl assembly is in the initial position, the first position or the second position. Figures 5 to 8The figure shows the cat feces cleaning process. When the basin assembly rotates from the initial position to the first position, the screening bin 200 is located at the lowest position of the basin assembly, and the cat litter 110 falls from the working bin 100 into the screening bin 200, while the cat feces 120 remains in the working bin 100. When the basin assembly rotates from the first position to the second position, the feces collecting bin 300 is located at the lowest position of the basin assembly. At this time, the opening of the feces collecting bin 300 is distributed upward, and the cat feces 120 rolls from the working bin 100 into the feces collecting bin 300 under the action of gravity. When the basin assembly is in reverse operation, returning from the second position to the first position, the opening of the feces collection bin 300 is also distributed upward, and the cat feces 120 is retained in the feces collection bin 300. When the basin assembly continues to return from the first position to the initial position, the cat litter 110 returns from the screening bin 200 to the working bin 100. Since the opening of the feces collection bin 300 is also distributed upward, the cat feces 120 that has been collected in the feces collection bin 300 is still retained in the feces collection bin 300, effectively solving the problem of cat feces 120 falling from the feces collection bin 300 back to the working bin 100 in the prior art. This structural configuration and operating mode of the cat litter box of the present invention can ensure that the problem of cat feces 120 that has been collected or is being collected falling out of the feces collection bin 300 can be avoided throughout the entire process, whether the basin assembly is in the initial position, the first position, or the second position.

[0066] 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 collecting chamber 300 connected in sequence, wherein the screening chamber 200 and the feces collecting chamber 300 are connected to form a first unit, and the first unit is connected to the working chamber 100 to form a basin assembly. In this embodiment, the basin assembly is composed of a working bin 100, a screening bin 200 and a feces collecting bin 300 connected in sequence. Specifically, the screening bin 200 and the feces collecting bin 300 are first configured as a component structure, that is, the feces collecting bin 300 is installed on the screening bin 200 to form a first unit. In this embodiment, both ends of the feces collecting bin 300 are pivotally connected to the screening bin 200, and the pivot point between the feces collecting bin 300 and the screening bin 200 is the first pivot center 310. The first pivot center 310 is located above the center of gravity 320 of the feces collecting bin 300, and the feces collecting bin 300 can rotate along the pivot center; then the screening bin 200 in the first unit of the component structure is connected to the working bin 100 to form a basin assembly. The basin assembly of the present invention has few overall parts, a simple structure, and is easy to disassemble and assemble.

[0067] 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 working chamber 100, it completes excretion and buries excrement in this area. The working chamber 100 is configured as a basin-shaped container. The basin-shaped container is an open structure with an open top. It has a large working space and can be used for pets of different sizes. It has good applicability. Of course, in addition to the above-mentioned basin-shaped container, the working chamber 100 can also be configured as Figure 37 and Figure 38 The closed container shown in the figure is provided with an opening on one side of the working chamber 100 for the cat to enter and exit.

[0068] Reference Figure 1 、 Figure 2 In a non-limiting embodiment of the present invention, the screening chamber 200 is a container with a closed periphery. A selective opening is provided on a side of the screening chamber 200 adjacent to the working chamber 100, and a filter screen 210 is provided at the opening. In this embodiment, the screening chamber 200 is a container with a closed periphery, 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 selective opening of the screening chamber 200 and the filter screen 210 at the opening are configured 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 the pet feces 120 and larger than the size of the cat litter 110, so that the cat litter 110 passing through the opening can freely enter and exit the screening chamber 200 through the filter screen 210, while the pet feces 120 is intercepted and cannot enter the screening chamber 200.

[0069] 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 arcuate wall that mates with the feces collection chamber 200. The sidewalls of the screening chamber 200 extend and extend from the arcuate wall to form the extensions 220. The extensions 220 extend from the top contour of the screening chamber 200 toward one side of the working chamber, forming a storage space above the screening chamber 200. The feces collection chamber 300 is disposed within this storage space. The configuration of the extensions 220 allows the feces collection chamber 300 to form a first unit with the screening chamber 200 when placed within the storage space. The feces collection chamber 300 is placed within the upper storage space of the screening chamber 200, with only the outline of the screening chamber 200 visible from the outside. This not only enhances the aesthetic appearance of the first unit, but also improves the stability of the feces collection chamber 300 and the screening chamber 200 during transportation, preventing the feces collection chamber 300 from falling out of the first unit.

[0070] Reference Figure 1 、 Figure 2 、 Figures 4 to 8In a non-limiting embodiment of the present invention, the feces collection bin 300 is a box-shaped container with an opening. Both ends of the feces collection bin 300 are pivotally connected to the extension 220 of the screening bin 200. In this embodiment, the lower portion of the feces collection bin 300 is a curved bottom that aligns with the curved top contour of the screening bin 200, ensuring that the feces collection bin 300 does not collide with the curved top contour of the screening bin 200 during rotation. The pivotal connection between the feces collection bin 300 and the extension 220 allows the feces collection bin 300 to simultaneously orbit along the basin assembly under the action of a first external force while rotating about its pivot axis under the action of its own weight, i.e., a second external force. This maintains the opening of the box-shaped container 300 facing upward, ensuring that the feces collection bin 300 can successfully collect pet feces 120 while preventing collected pet feces 120 from rolling back into the working bin 100.

[0071] Reference Figures 4 to 8In a non-limiting embodiment of the present invention, the extension portion 220 is configured with an end cap 230 that is movable to close the opening of the feces collection bin 300. In this embodiment, the configuration of the end cap 230 on the extension portion 220 is such that when the bowl assembly is in the initial position, the opening of the feces collection bin 300 corresponds to the position of the end cap 230. At this time, the opening of the feces collection bin 300 is directly below the end cap 230. The end cap 230 closes the opening of the feces collection bin 300, thereby preventing the spread of odor from pet feces 120 in the feces collection bin 300. When the bowl assembly is moved from the initial position to the first position, and further from the first position to the second position, driven by the first external force, the feces collection bin 300 and the end cap 230, driven by the extension 220, revolve around the bowl assembly's rotation center along with the entire bowl assembly. Simultaneously, the feces collection bin 300 also rotates around its own rotation center under the action of the second external force. The opening of the feces collection bin 300 also moves away from the position of the end cap 230 during this rotation. During this process, the opening of the feces collection bin 300 is no longer directly below the end cap 230, but extends beyond the end cap 230. In other words, the end cap 230 no longer seals the opening of the feces collection bin 300, and the opening of the feces collection bin 300 gradually opens. When the bowl assembly reaches the second position, the open portion of the feces collection bin 300 connects to the outer wall of the screening bin 200 facing the bowl assembly's rotation center, allowing it to receive falling pet feces 120. When the bowl assembly returns from the second position to the initial position, the opening of the feces collection bin 300 once again corresponds to the position of the end cap 230, and the opening of the feces collection bin 300 returns to directly below the end cap 230 and is sealed by the end cap 230. With the support of the end cap 230, the present invention simultaneously achieves two technical effects: first, it prevents pet feces 120 already collected in the feces collection bin 300 from repeatedly entering and exiting the feces collection bin 300 during the cleaning process, thereby contaminating the inner wall of the bowl assembly and causing odor to intensify; second, when the bowl assembly is in the initial position, the feces collection bin 300 is sealed by the end cap 230, thereby blocking the emission of odor and preventing the pet feces from attracting or breeding insects. In the user's use environment, the initial position of this embodiment is a standby state. Only after the pet uses the bowl assembly and enters the cleaning process does the bowl assembly leave the initial position. Therefore, the configuration of the end cap 230 of this embodiment ensures that the product is in the initial position most of the time, which can effectively block the emission of odor.

[0072] Reference Figures 4 to 10 In a non-limiting embodiment of the present invention, the end cap 230 is movably connected to the extension portion 220. In this embodiment, the end cap 230 is rotatably connected to the extension portion 220. When the feces collecting bin 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 feces collecting bin 300 can be opened as shown in FIG. Figure 9As shown in the figure, a fixed plastic bag is pre-laid, and when the user removes the pet feces 120, the user can take out the pet feces 120 together with the plastic bag and pack it up for disposal. Figure 10 As shown, after the user opens the end cover 230 , the pivotal connection between the excrement collecting bin 300 and the extension portion 220 is released, and the excrement collecting bin 300 is further taken out to clean and remove the pet feces 120 in the excrement collecting bin 300 and to clean the excrement collecting bin 300 more thoroughly.

[0073] 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 in the working chamber 100. In this embodiment, the end walls of the screening chamber 200 and the adjacent sides of the working chamber 100 can be as follows: Figure 11 As shown, the screening chamber 200 and the working chamber 100 can be detachably connected by adjusting members or fasteners. Figure 12 The illustrated embodiment shows a plug-in detachable connection; of course, the screening chamber 200 and the working chamber 100 may also be connected using other detachable connection methods. In this embodiment, the outer dimensions of the first unit are smaller than the inner dimensions of the working chamber 100. Specifically, the outer dimensions of the screening chamber 200 are smaller than the inner dimensions of the working chamber 100. The feces collection chamber 300 is located within the extension 220 of the screening chamber 200. Furthermore, the first unit is detachably connected to the working chamber 100. The structural configuration of the present invention allows the first unit to be removed from the working chamber 100 when the litter box is not in use for an extended period of time, or when it is being stored or transported, and then nested within the working chamber 100. The outer contour of the working chamber 100 becomes the overall outer contour of the basin assembly, thus reducing the volume of the basin assembly to the same as that of the working chamber 100. This significantly reduces the space occupied by the litter box during storage and transportation, allowing more litter boxes to be stored or placed within the same storage and transportation space, thereby effectively saving storage and transportation costs.

[0074] 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 bin 100 is adapted to the inner bottom shape of the working bin 100, so that after the first unit is placed in the working bin 100, the fit between the first unit and the working bin 100 is more consistent, making the basin assembly more stable during storage and transportation. Example 2

[0075] Reference Figures 13 to 16This embodiment has essentially the same structure and principle as Example 1, differing in that a first counterweight 211 is positioned above the filter screen 210. The filter screen 210 is located on one side of the working chamber 100 and is provided with the first counterweight 211. 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, while the other side comprises a movable end. This configuration allows the movable end to rotate along its pivot center under the weight of the first counterweight 211, sealing the opening of the screening chamber 200. This allows both cat litter 110 and cat feces 120 to selectively pass through the filter screen 210 and enter the screening chamber 200. Furthermore, the movable end rotates along its pivot center under the weight of the first counterweight 211 to a flipped position, allowing small particles of pet feces 120 remaining on the filter screen 210 to fall into the feces collection chamber. Specifically, when the bowl assembly is in its initial position, the filter screen 210 and the first counterweight 211 are both positioned 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 bin 200, so that the filter screen 210 is tightly attached to the opening of the screening bin 200 under the action of gravity, which can further prevent the filter screen 210 from encroaching on the space of the working bin 100 under the action of gravity. Figures 13 to 16 The figure shows a cat feces cleaning process when a first counterweight 211 is added to the filter screen 210. Specifically, when the basin assembly moves from the initial position to the first position, the filter screen 210 is under the action of the counterweight, and its center of gravity is located on the left side of the pivot point. The filter screen 210 is still under the action of gravity and is tightly attached to the opening of the screening bin 200. At this time, the cat litter 110 passes through the filter screen 210 and enters the screening bin 200, while the pet feces 120 is retained in the working bin 100 or stays on the filter screen 210 or the upper surface of the outer wall of the screening bin 200; when the basin assembly moves from the first position to the second position, the filter screen 210 and the counterweight are located above the pivot point. Under the action of the counterweight, the center of gravity of the filter screen 210 is still located on the side of the pivot point away from the screening bin 200. At this time, the filter screen 210 is pivoted open to a position away from the opening due to gravity, thereby completely shaking off the small particles of pet feces 120 that may remain attached to the filter screen 210, thereby achieving the technical effect of improving the filtration efficiency. In addition, since the water absorption rate of the cat litter 110 actually used varies, it may be broken into small pieces of pet feces 120 during the cleaning process. These pieces of feces 120 that are close to or slightly larger than the pore size of the filter 210 may get stuck in the mesh of the filter 210 and cannot fall off in time. The cat litter 110 may also adhere to the filter 210 due to its low water absorption rate. In order to improve the filtration efficiency of the pet feces 120, a matching design solution is required for the filter 210. It is necessary to shake the filter 210 during operation to get rid of the residual pet feces 120 fragments stuck to the filter 210. The configuration of the first counterweight 211 on the filter 210 in the present invention solves this problem well. Example 3

[0076] Reference Figures 17 to 20 The structure and principle of this embodiment are substantially the same as those of Embodiments 1 and 2, with the difference being that a flap 400 is disposed adjacent to the screening bin 200 and the feces collection bin 300 in this embodiment. The flap 400 is pivotally connected to the sidewalls of the screening bin 200 at both ends. During actual development and testing, the inventors discovered the following problem: when the bowl assembly moves from the first position to the second position, some nearly spherical pet feces 120 or a small amount of loose cat litter 110 that has fallen off the pet feces 120 may roll and slide before other pet feces 120. At this time, the feces collection bin 300, under the second force, may not be able to move in time to fully receive this pre-rolled pet feces 120 or loose cat litter 110. This prevents a small amount of pet feces 120 and loose cat litter 110 from entering the gap between the screening bin 200 and the feces collection bin 300, preventing them from being fully collected in the feces collection bin 300. Therefore, in order to solve this problem, the present invention configures a flap 400 adjacent to the screening bin 200 and the feces collecting bin 300. Figures 17 to 20 The figure shows the cat feces cleaning process when the cat litter box is added with a flap 400. The configuration of the flap 400 is that when the basin body assembly is between the initial position and the first position, the flap 400 is in a tilted state under the action of gravity. This state can effectively block the cat feces 120 or scattered cat litter 110 that rolls down prematurely, and temporarily intercept them on the side of the flap 400 away from the feces collection bin 300; as the basin body assembly rotates further, the feces collection bin 300 opening rotates and contacts the flap 400, and the flap 400 loses the support of the outer wall of the feces collection bin 300, and lies flat and adheres to the outer wall of the screening bin 200 under the action of gravity. At this time, the pet feces 120 and scattered cat litter 110 intercepted on the side of the flap 400 away from the feces collection bin 300, as well as large pieces of pet feces 120, slide over the surface of the flap 400 and enter the feces collection bin 300. Example 4

[0077] Reference Figures 21 to 24, a non-limiting embodiment of the present invention, this embodiment is a further improved embodiment of any of the above embodiments 1 to 3, and this embodiment is provided with a soft pad 130 in the working bin 100. After the pet has completed defecation in the working bin 100, if the water absorption capacity of the cat litter 110 is insufficient, or the amount of cat litter 110 put in is small, the pet's urine may soak the cat litter 110 and stick to the bottom 150 of the working bin, which will bring obstacles to the automatic cleaning of the cat litter box. For example, when the basin assembly is already in the second position, the pet feces 120 stuck to the bottom 150 of the working bin cannot fall off naturally under the action of gravity. Therefore, the present invention is provided with a soft pad 130 on the bottom 150 of the working bin. 0. When the basin assembly moves to the second position, the soft pad 130 is deformed under the action of gravity. The relatively hard pet feces 120 and the cat litter 110 cannot continue to stick to the soft pad 130, and are then smoothly peeled off under the action of gravity and rolled into the feces collection bin 300, avoiding the cat litter 110 soaked in urine from sticking to the working bin 100, ensuring that the cat litter 110 in the working bin 100 remains clean, and greatly reducing the workload of the user in cleaning the working bin 100.

[0078] Reference Figure 25 、 Figure 26 、 Figure 27In a non-limiting embodiment of the present invention, a fixing ring 131 is disposed on the edge of the soft cushion 130. The work chamber 100 is formed by connecting a work chamber wall 140 and a work chamber bottom 150. The fixing ring 131 is clamped and fixed by the connecting portion of the work chamber wall 140 and the work chamber bottom 150. In this embodiment, the work chamber 100 is a split structure, consisting of the work chamber wall 140 and the work chamber bottom 150 connected by a connector 160. The fixing ring 131 is disposed on the edge of the soft cushion 130. The fixing ring 131 is disposed at the connecting portion of the work chamber wall 140 and the work chamber bottom 150 and is clamped and fixed by the work chamber wall 140 and the work chamber bottom 150. The present invention has a cushion 130 with a fixing ring 131 and a split-structure work chamber 100. If a pet damages the cushion 130, the user can remove the connector 160 between the work chamber wall 140 and the work chamber bottom 150, replace it with a new cushion 130, and align the fixing ring 131 configured on the edge of the cushion 130 between the work chamber wall 140 and the work chamber bottom 150, and then reinstall the connector 160 between the two, thereby replacing the cushion 130 and avoiding the situation where the cat litter box cannot be used due to damage to the cushion 130. In order to improve the connection between the working bin wall 140 and the working bin bottom 150 and the stability of the working bin wall 140 and the working bin bottom 150 clamping the fixing ring 131, further, this embodiment provides the lower part of the working bin wall 140 with a bent portion bent inward, and a step-shaped groove 141 distributed in steps from the inside to the outside is provided in the middle of the bent portion. The groove on the inner side of the step-shaped 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 a step-shaped groove 141. After the clamping groove is opened, the fixing ring 131 is first placed in the clamping groove, and then the working bin wall 140 and the working bin bottom 150 are connected together through the connecting piece 160, so that the fixing ring 131 is well clamped in the connecting portion with the clamping groove, which effectively ensures that the fixing ring 131 is stably clamped between the working bin wall 140 and the working bin bottom 150.

[0079] Reference Figures 28 to 31A non-limiting embodiment of the present invention is provided. This embodiment is used to replace the technical solution of configuring a soft cushion 130 in the work bin 100. In this embodiment, a soft plastic bag 170 is provided in the work bin 100, and the soft plastic bag 170 can be used as a garbage bag. This embodiment achieves the technical effect of configuring a soft cushion 130 in the work bin 100 by configuring a soft plastic bag 170 in the work bin 100. It is an alternative technical solution to configuring a soft cushion 130 in the work bin 100. The present invention configures a soft plastic bag 170 in the work bin 100. The soft plastic bag 170 is also a soft component and has the same function and technical effect as the aforementioned soft cushion 130 configured in the work bin 100. It is used to solve and alleviate the technical problem of the mixture of cat litter 110 and urine being fixedly bonded to the bottom 150 of the work bin. Furthermore, in this embodiment, the work chamber 100 is composed of a work chamber wall 140 and a work chamber bottom 150. The connection between the work chamber wall 140 and the work chamber bottom 150 is configured with a groove 190 and a pressure ring 180. 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. The pressure ring 180 presses and secures the soft plastic bag 170 within the groove 190. The work chamber 100 of this embodiment comprises the work chamber wall 140 at the top and the work chamber bottom 150 at the bottom. The groove 190 is disposed at the connection between the work chamber wall 140 and the work chamber bottom 150. The opening of the soft plastic bag 170 is disposed at the groove 190 and extends a certain distance therefrom. The pressure ring 180 is then pressed into the groove to stably secure the soft plastic bag 170 between the pressure ring 180 and the groove 190. During the use of the cat litter box, users need to do certain maintenance work, one of which is to add cat litter 110, or completely replace the cat litter 110 in the working chamber 100. This is because although the cat litter 110 can adhere to the pet feces 120 and form agglomerated solids, it is inevitable that some small-sized particles will fall off during the cleaning process. The small particles of these contaminated scattered cat litter 110 gradually accumulate and increase with the accumulation of usage time, causing the cat litter 110 to produce odor and breed mold and bacteria, causing the cleaning condition to deteriorate. Therefore, it is necessary to regularly replace the cat litter 110 in the working chamber 100. However, the cat litter box is large in size. In the prior art, the cat litter 110 is replaced by using handheld tools to remove it in batches, or by lifting the entire basin assembly and dumping it into a trash can, which is very inconvenient. The technical solution proposed by the present invention is to set a pressing ring 180 that can clamp the soft plastic bag 170 in the working chamber 100, and then lay the cat litter 110 on the soft plastic bag 170. When the user needs to completely replace the cat litter 110, he or she can remove the pressing ring 180 and use the soft plastic bag 170 to remove all the cat litter 110 as a whole, and then replace the soft plastic bag 170 with a new one and put it into the working chamber 100. The operation is convenient and fast, and it also reduces the maintenance burden of the user in cleaning the bottom of the working chamber 100. Example 5

[0080] Reference Figures 32 to 36 , a non-limiting embodiment of the present invention, this embodiment is a further improved embodiment of any one of the above embodiments 1 to 4. In this embodiment, the cat litter box also includes a sand cleaning structure 500, and the sand cleaning structure 500 is arranged above the filter screen 210 on the screening bin 200 and adjacent to the feces collection bin 300. As described above, during the use of the cat litter box, the cat litter 110 in the working bin 100 needs to be replaced regularly. The traditional operation is to take out the working bin 100 for manual cleaning, or to configure a soft pad 130 or a soft plastic bag 170 in the working bin 100, and clean it by replacing the soft pad 130 or the soft plastic bag 170. This embodiment provides a technical solution, which configures a sand cleaning structure 500 above the filter screen 210 on the screening bin 200 and adjacent to the feces collection bin 300. The configuration of the sand cleaning structure 500 enables the cat litter 110 to enter and exit the feces collection bin 300 through the sand cleaning structure 500. During the rotation of the basin assembly, the cat litter 110 automatically falls into the feces collection bin 300, thereby achieving the automatic cleaning of the cat litter 110 and the maintenance needs of the user to replace the cat litter 110. Furthermore, in this embodiment, the sand cleaning structure 500 includes more than one sand discharge port 510, and the sand discharge port 510 is configured with a sand discharge movable door 520 for opening or closing the sand discharge port 510. In this embodiment, as Figures 32 to 34 The figure shows the sand discharge process of the sand cleaning structure 500. The configuration of the sand discharge port 510 in the sand cleaning structure 500 enables the cat litter 110 in the working bin 100 to first pass through the filter 210 from the working bin 100 into the screening bin 200 and then pass through the sand discharge port 510 on the screening bin 200 to fall into the feces collection bin 300 when the basin assembly rotates from the initial position to the first position and then from the first position to the third position. The configuration of the sand discharge movable door 520 is that when the user needs to replace the cat litter 110, it is opened to leak the sand discharge port 510, ensuring that the cat litter 110 enters the feces collection bin 300 to achieve sand cleaning when the basin assembly rotates. When the cat litter basin is in use, the sand discharge movable door 520 is in the closed state to prevent the cat litter 110 from falling into the feces collection bin 300 from the sand discharge port 510. Example 6

[0081] Reference Figures 39 to 44The present invention provides another cat litter box. This litter box, in addition to any of the litter boxes of Embodiments 1 to 5, further includes a support assembly 600. Specifically, the litter box of this embodiment includes a basin assembly and a support assembly 600, wherein the basin assembly is pivotally connected to the support assembly 600. The provision of the support assembly 600 in this embodiment not only provides the cat litter box with the advantages of a simple structure, reasonable distribution, and a large workspace, but also offers the advantages of flexible, convenient, and labor-saving operation. Furthermore, the litter box is more adaptable, 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.

[0082] Reference Figures 39 to 44 , a preferred embodiment of the cat litter box of the present invention, the support assembly 600 includes two relatively distributed support walls 610 and a chassis structure 620, the two ends of the basin assembly are respectively pivoted to the support walls 610 on both sides, and the bottoms of the two support walls 610 are respectively connected to the opposite sides of the chassis structure 620. In this embodiment, the configuration of the two relatively distributed support walls 610 in the support assembly 600 is used to pivot the two ends of the basin assembly, so that the support at both ends of the basin assembly is balanced, so that when the basin assembly rotates along the center of the pivot hole 613 under the action of the first external force, the operation is stable, labor-saving, and easy to operate. In this embodiment, it is preferred that the two ends of the working bin 100 in the basin assembly are pivoted to the support walls 610, so that the rotation center of the basin assembly is located on the working bin 100; of course, it can also be as follows Figure 3 As shown, both ends of the screening bin 200 in the basin assembly are pivotally connected to the support walls 610, so that the rotation center of the basin assembly is located on the screening bin 200. In this embodiment, the configuration of the chassis structure 620 connects the two support walls 610 in the support assembly 600 to the two 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. The two separate support walls 610 are connected by the chassis structure 620 to form an integrated assembly structure, which is convenient for storage and transportation.

[0083] Reference Figures 41 to 46 In a non-limiting embodiment of the present invention, the support assembly 600 may be a foldable or detachable structure, and the outer contour of the folded support assembly 600 or the disassembled support assembly 600 is smaller than the inner contour of the basin opening of the working chamber 100. In this embodiment, Figure 41 、 42As shown, when the support assembly 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. In addition to the folding technical solution, the support wall 610 and the chassis structure 620 can also be configured as a detachable structure with active connection, such as Figure 43 、 44 As shown, the support wall 610 and the chassis structure 620 are plug-connected, which can also achieve the folding effect of the foldable structure. In this embodiment, in addition to the movable connection between the support wall 610 and the chassis structure 620 at the mechanical structure level, movable electrical connection components can also be configured. For example, when the support wall 610 and the chassis structure 620 are plug-connected, a USB plug 630 and a USB socket 640 can be configured. The USB plug 630 and the USB socket 640 are respectively fixed to corresponding positions of the support wall 610 and the chassis structure 620 to achieve communication and power supply requirements between the electrical components configured on the chassis structure 620 and the 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 the support wall 610 and the chassis structure 620 and place them in the work compartment 100. After purchase, the user only needs to simply unfold and assemble them to realize the use state. The foldable structure of the support assembly 600 of the present invention is configured as the first unit that combines the screening bin 200 and the feces collection bin 300 in the basin assembly. When in storage or transportation, the first unit and the folded support assembly 600 are placed in the working bin in sequence. The height of the folded cat litter box is approximately 1 / 3 to 1 / 2 of the height of the unfolded cat litter box, which greatly reduces the height of the cat litter box and achieves a compact product packaging size. Figure 45 Shows the packaging size of the product in use state, Figure 46 The package dimensions of the product in its folded state are shown. The folded package dimensions are approximately 1 / 3 to 1 / 2 the height of the package dimensions when the product is in use, significantly reducing storage and transportation costs. As the average weight and size of cats have been increasing year by year, the space requirements for the product categories described in this case have also gradually increased, and the costs of transporting and storing such products have also risen significantly. However, this is inconsistent with the increasingly significant market competition. Therefore, achieving a smaller storage and transportation volume and reducing the use of packaging materials have greater commercial value and demand, and are also beneficial to environmental protection. In this embodiment, the support assembly 600 is preferably configured as a foldable structure, which not only enables folding and storage but also avoids the problem of easy loss of parts after disassembly, as in the case of a detachable structure.

[0084] Reference Figure 47 、 Figure 48In a non-limiting embodiment of the present invention, in addition to being configured to include two opposing support walls 610 and a chassis structure 620, the support assembly 600 may also be configured to include a support wall 610 and a set of roller support frames 630, with one end of the basin assembly pivotally connected to the support wall 610 and the other end mounted on the roller support frames 630. This embodiment provides another structure of the support assembly 600, wherein the 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, while the basin assembly is mounted on the roller support frames 630. Specifically, the other side of the basin assembly is supported by rollers on the roller support frames 630. During the rotation of the basin assembly, the rollers on the roller support frames 630 rotate along 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 the two ends of the chassis structure 620. A fixed shaft extends inward from the roller support frame 630, and a rotatable roller is mounted 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.

[0085] Reference Figure 49 、 Figure 50 In a non-limiting embodiment of the present invention, in addition to being configured to include two opposing support walls 610 and a chassis structure 620, or being configured to include a support wall 610 and a set of roller support frames 630, the support assembly 600 can also be configured to include a support wall 610 and a chassis structure 620, wherein the support wall 610 is connected to one side of the chassis structure 620 for pivoting with the basin assembly to provide support for the rotation of the basin assembly; and one or more rollers are distributed on a side of the chassis structure 620 away from the support wall 610, wherein the rollers protrude from the upper surface of the chassis structure 620 for supporting the basin assembly.

[0086] Reference Figures 39 to 50, a non-limiting embodiment of the present invention, the present invention includes a cat litter box with a support assembly, which is an intelligent cat litter box. Since the user has the requirement to clean the basin body assembly, and the support assembly 600 is equipped with electrical components and is not suitable for cleaning, the present invention provides a support wall 610 with a split connection structure, the support wall 610 includes a support wall body 611 and a bearing 612 arranged above the support wall body 611, and 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, and a pivot is arranged in the connecting groove 614. The connecting end 615 of the bearing 612 is rotatably connected to the pivot, and the connecting end 615 is an arc-shaped open groove structure that cooperates with the pivot to facilitate 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 for pivoting the working bin 100 is formed. The configuration of the support wall 610 of the split connection structure of the present invention allows the user to remove the bearing 612 in the support wall 610 from the support wall body 611 when cleaning the basin assembly, and then remove the basin assembly from the support assembly 600, so as to achieve the need to clean the basin assembly separately without affecting the electrical components on the support assembly 600. Of course, to make processing and installation simpler and more convenient, the support wall 610 can also be configured as an integrally molded structure. In this case, the pivot hole 613 is configured at the pivotal connection between the support wall 610 and the working chamber 100. However, the disadvantage of this is that the basin assembly is not easy to remove from the support assembly 600, which brings inconvenience to the separate cleaning of the basin assembly.

[0087] Reference Figure 39 、 Figure 40 、 Figures 47 to 50In a non-limiting embodiment of the present invention, the cat litter box further comprises a control system, and the first external force is generated by human power or by the first drive assembly 700. In the cat litter box of the present invention, the basin assembly can be directly driven to rotate by human power, or the basin assembly can be driven by the first drive assembly 700 to realize automatic intelligent rotation. When the first external force is generated by the first drive assembly 700, the first drive assembly 700 is configured on the support assembly 600, and the first drive assembly 700 is connected to the control system. In this embodiment, the first drive assembly 700 comprises a first motor 710 and a first gear assembly, the first motor 710 is fixedly mounted on the support assembly 600, one end of the first gear assembly is fixedly mounted on the output end of the first motor 710, and the other end is fixedly mounted on the basin assembly, and the first motor 710 drives the basin assembly to rotate around its rotation center through the first gear assembly. Specifically, the first gear assembly includes a first driving wheel 720 and a first driven wheel 730 that are meshed with each other. The first driving wheel 720 is fixed to the output end of the first motor 710, and the first driven wheel 730 is fixed to the basin assembly. The first motor 710 drives the first driving wheel 720 to rotate, and the first driving wheel 720 drives the first driven wheel 730 to rotate, and the first driven wheel 730 further drives the basin assembly to rotate.

[0088] Reference Figure 39 、 Figure 40 、 Figures 47 to 55 , a non-limiting embodiment of the present invention, in the present invention, the second external force is generated by the weight of the feces collecting bin 300 itself or the first drive assembly 700 transmitted and converted through the transmission assembly 900 or the second drive assembly 800, wherein the second drive assembly 800 includes a second motor 810 and a second gear assembly, the second motor 810 is fixed to the screening bin 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 feces collecting bin 300, and the second gear assembly includes a second driving wheel 820 and a second driven wheel 830 that are meshed with each other.

[0089] When the second external force is generated by the gravity of the feces collecting bin 300, Figures 39 to 40 、 Figures 47 to 50 In the process of rotating with the basin assembly, the feces collecting bin 300 rotates around its own rotation center under the action of its own gravity.

[0090] When the second external force is generated by the second driving assembly 800, the second driving assembly 800 is connected to the control system as the first driving assembly 700. Figure 51 and Figure 52As shown, the second driving assembly 800 is configured on the screening bin 200. Specifically, the second motor 810 is fixed on the screening bin 200, the second driving wheel 820 is fixed on the output end of the second motor 810, and the second driven wheel 830 is fixed on the feces collecting bin 300. The second motor 810 drives the second driving wheel 820 to rotate, and the second driving wheel 820 drives the second driven wheel 830 to rotate, and the second driven wheel 830 then drives the feces collecting bin 300 to rotate around its own rotation center; of course, the second driving assembly 800 can also be as follows Figure 53 As shown, it is configured on the feces collecting bin 300. At this time, the second driving component 800 is used to output a force to the screening bin 200, and the screening bin 200 pushes the feces collecting bin 300 in reverse to rotate around its own rotation center; specifically, the second motor 810 is fixed on the feces collecting bin 300, the second driving wheel 820 is fixed to the output end of the second motor 810, and the second driven wheel is fixed on the screening bin 200 for outputting a force to the screening bin 200, and the screening bin 200 pushes the feces collecting bin 300 in reverse to rotate around its own rotation center. In this embodiment, the configuration of the second drive assembly 800 can drive the feces collection bin 300 to rotate around its own rotation center in advance or in delay. Specifically, before the basin assembly reaches the second position, the second drive assembly 800 can drive the feces collection bin 300 to rotate, so that the opening of the feces collection bin 300 moves in advance to a position connected with the outer wall surface of the screening bin 200 on the side close to the rotation center of the basin assembly, thereby avoiding the defect that the spherical pet feces 120 and loose cat litter 110 that roll down in advance cannot be completely collected in the feces collection bin 300, which is equivalent to the technical effect brought by the flap 400; in addition, the feces collection bin 300 can be rotated and the opening of the feces collection bin 300 can be opened without opening the flip cover, so that the user can check whether the feces collection bin 300 is full. The feces collection bin 300 can also be shaken separately to make the pet feces 120 in the feces collection bin 300 more evenly distributed; in addition to the above functions, it also has the function of assisting the rotation of the feces collection bin 300 when gravity is insufficient so that it can reach the correct position.

[0091] Reference Figure 54 and Figure 55 When the second external force is generated by the first driving assembly 700 through the transmission assembly 900, the transmission assembly 900 is connected to the first driving assembly 700 and the feces collecting bin 300 respectively. The transmission assembly 900 is a belt transmission member. In this embodiment, the transmission assembly 900 is preferably a conveyor belt. One end of the conveyor belt is sleeved on the first driving assembly 700. Figure 54 The first driving wheel 720 shown or Figure 55The first driven wheel 730 is shown in FIG. 1 , and the other end is mounted on the rotating member 330 of the feces collecting bin 300. The first driving wheel 720 or the first driven wheel 730 drives the rotating member 330 to rotate through the conveyor belt, thereby driving the feces collecting bin 300 to rotate around its first pivot center 310. Specifically, when the conveyor belt is mounted on the rotating member 330, the first driving wheel 720 or the first driven wheel 730 drives the rotating member 330 to rotate through the conveyor belt, thereby driving the feces collecting bin 300 to rotate around its first pivot center 310. Figure 54 When the first driving wheel 720 is on the first driving wheel 720 shown in the figure, when starting cleaning, the first motor 710 drives the first driving wheel 720 to rotate counterclockwise, and the first driving wheel 720 drives the working bin to rotate clockwise through the first driven wheel 730. At the same time, the first driving wheel 720 drives the feces collecting bin 300 to rotate counterclockwise through the conveyor belt; when the conveyor belt is set as shown in the figure Figure 55 When the first driven wheel 730 is on, when cleaning is started, the first motor 710 drives the first driving wheel 720 to rotate counterclockwise, and the first driving wheel 720 drives the working bin 100 to rotate clockwise through the first driven wheel 730. At the same time, the first driven wheel 730 drives the feces collection bin 300 to rotate counterclockwise through the conveyor belt.

[0092] Reference Figure 39 and Figure 40 The cat 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 respectively electrically connected to the control board 930 in the control system, wherein the first sensor 910 is configured on the support assembly 600. Specifically, in this embodiment, the first sensor 910 is configured 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 enters and exits the basin assembly and / or approaches the basin assembly; the first sensor 910 can be a gravity sensor, which determines whether the pet enters and exits the basin assembly by changing the weight data; it can also be a microwave radar sensor, an ultrasonic ranging sensor, a pyroelectric sensor, an infrared sensor, etc. Etc., with the help of the change of the light blocking reflection signal and the radio blocking reflection variable, it is used to determine whether the pet enters or exits the basin assembly; the second sensor 920 is arranged on the support assembly 600. Specifically, in this embodiment, the second sensor 920 is arranged on the support wall 610, and is used to detect the relative position state of the basin assembly and the support assembly 600. The second sensor 920 can be a position switch sensor, a Hall sensor arranged on the base and a magnet arranged on the basin assembly, a grating arranged on the basin assembly and an infrared grating sensor arranged on the base, etc., with the help of the switch signal, the magnetic field variable, and the light variable, the position state of the basin assembly is judged, and the action signal is transmitted to the control system to make the drive assembly execute the corresponding drive action.

[0093] The above-mentioned embodiments disclosed in the present invention are only for illustrating or explaining the principles disclosed in the present invention. For those skilled in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and all should be included in the scope of protection of the present invention.

Claims

1. A cat litter box, characterized in that: include, The basin assembly includes a working chamber, a screening chamber and a feces collecting chamber, wherein the screening chamber and the feces collecting chamber form a first unit and are externally arranged to the working chamber, wherein: The basin assembly rotates around the rotation center of the basin assembly under the action of the first external force. The feces collecting bin rotates around its own rotation center under the action of the second external force.

2. The cat litter box according to claim 1, wherein: When the basin assembly rotates from the initial position to the first position, the screening bin is located at the lowest position of the basin assembly, and cat litter falls from the working bin into the screening bin, while cat feces remains in the working bin; When the basin assembly rotates from the first position to the second position, the feces collecting bin is located at the lowest position of the basin assembly, and cat feces falls from the working bin into the feces collecting bin.

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

4. The cat litter box according to claim 1 or 2, characterized in that: The screening chamber is a container with a closed outer periphery. A selective opening is provided on a side of the screening chamber adjacent to the working chamber, and a filter is provided at the opening.

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

6. The cat litter box according to claim 4, characterized in that: A flap is provided adjacent to the screening bin and the feces collecting bin.

7. The cat litter box according to claim 1 or 2, characterized in that: An extension portion is arranged on the screening bin.

8. The cat litter box according to claim 7, characterized in that: The feces collecting bin is a box-shaped container with an opening, and both ends of the feces collecting bin are pivotally connected to the extension portion of the screening bin.

9. The cat litter box according to claim 8, characterized in that: The first unit is detachably connected to the working chamber. After detachment, the first unit can be nested and placed in the working chamber.

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

11. The cat litter box according to claim 8, characterized in that: The extension portion is provided with an end cover, and the end cover is movably closed to close the opening of the feces collecting bin.

12. The cat litter box according to claim 11, characterized in that: The end cover is movably connected to the extension portion.

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

14. The cat litter box according to claim 1 or 2, characterized in that: A soft cushion is provided in the working chamber.

15. The cat litter box according to claim 14, characterized in that: A fixing ring is arranged at the edge of the soft cushion. The working chamber is formed by connecting a working chamber wall and a working chamber bottom. The fixing ring is clamped and fixed by the connecting portion of the working chamber wall and the working chamber bottom.

16. The cat litter box according to claim 1 or 2, characterized in that: A soft plastic bag is provided in the working chamber.

17. The cat litter box according to claim 16, characterized in that: The working bin is composed of a working bin wall and a working bin bottom. The connecting portion of the working bin wall and the working bin 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 arranged between the groove and the pressure ring. The pressure ring presses and fixes the soft plastic bag in the groove.

18. The cat litter box according to claim 4, characterized in that: It also includes a sand cleaning structure, which is arranged above the filter screen on the screening bin and adjacent to the feces collection bin.

19. The cat litter box according to claim 18, characterized in that: The sand cleaning structure includes more than one sand discharge port, and each sand discharge port is provided with a sand discharge movable door for opening or closing the sand discharge port.

20. A cat litter box, comprising the bowl assembly according to any one of claims 1 to 19, and further comprising a support assembly, wherein the bowl assembly is pivotally connected to the support assembly.

21. The cat litter box according to claim 20, characterized in that: The support assembly includes two supporting walls that are distributed opposite to each other, and the two ends of the basin assembly are respectively pivotally connected to the supporting walls on both sides.

22. The cat litter box according to claim 21, characterized in that The support assembly further includes a chassis structure, and the two support walls are respectively connected to two opposite sides of the chassis structure.

23. The cat litter box according to claim 20, characterized in that The support assembly includes a support wall and a group 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 frame.

24. The cat litter box according to claim 23, characterized in that The roller support frame is a chassis structure, one side of the roller support frame is distributed with one or more rollers, and the other side of the roller support frame is connected to the support wall.

25. The cat litter box according to claim 20, 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.

26. The cat litter box according to any one of claims 22 to 25, characterized in that: The support wall is an integrally formed structure, and a pivot hole is provided at the pivotal connection between the support wall and the working chamber; Alternatively, the support wall is a split connection structure, the support wall includes a support wall body and a bearing shell arranged above the support wall body, the bearing shell is movably connected to the support wall body, and after the bearing shell and the support wall body are connected, a pivot hole for pivoting the working chamber is formed.

27. The cat litter box according to claim 26, characterized in that The support assembly may be a foldable structure or a detachable structure, and the outer contour size of the folded support assembly or the disassembled support assembly is smaller than the inner contour size of the basin mouth of the working chamber.

28. The cat litter box according to claim 27, characterized in that The first external force is generated by human power or by a first driving component, wherein, The first driving assembly is configured on the supporting assembly and is used to drive the basin assembly to rotate around its rotation center; or human power directly drives the basin assembly to rotate around its rotation center.

29. The cat litter box according to claim 28, characterized in that The second external force is generated by the weight of the feces collecting bin itself or by the first driving component through the transmission component or by the second driving component, wherein: When the second external force is generated by the weight of the feces collecting bin itself, the feces collecting bin rotates around its own rotation center under the action of its own weight during the rotation of the basin assembly; When the second external force is generated by the second driving assembly, the second driving assembly is configured on the screening bin to drive the feces collecting bin to be placed around its own rotation center; or, the second driving assembly is configured on the feces collecting bin to output a force to the screening bin, so that the screening bin pushes the feces collecting bin to rotate around its own rotation center in the opposite direction; When the second external force is generated by the first driving assembly through the transmission assembly, the transmission assembly is connected to the first driving assembly and the feces collecting bin respectively.

30. The cat litter box according to claim 29, wherein: It also includes a sensing device and a control system, wherein the sensing device and the first driving component are connected to the control system respectively, and the sensing device includes a first sensor and / or a second sensor, wherein: The first sensor is configured on the support assembly to detect whether animals or humans enter or exit the basin assembly and / or approach the basin assembly; the second sensor is configured on the support assembly to detect the relative position status of the basin assembly and the support assembly.

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