Pet waste filtration device

Abstract

This application belongs to the field of pet supplies and relates to a pet excrement filtration device, including a support frame with at least one limiting component on the support frame; a rotating chamber capable of rotating on the support frame; a chamber body through-hole on the circumferential wall of the rotating chamber; a first filter screen installed on the first side wall edge of the chamber body through-hole inside the rotating chamber; a chamber body cover corresponding to the chamber body through-hole; when the rotating chamber rotates, the limiting component contacts or separates from the chamber body cover to open or close the chamber body through-hole. This application greatly increases the internal activity space of the pet toilet and has a simple structure.

Description

Technical Field

[0001] This application relates to the field of pet products, and in particular to a pet excrement filtration device. Background Technology

[0002] With the rapid development of smart pet devices, automatic litter boxes are gradually becoming essential for pet-owning families. Among existing technologies, litter boxes based on the drum sieving principle have attracted much attention due to their elimination of complex sensors; however, their mechanical structure still has significant drawbacks, particularly the conflict between efficient internal space utilization and pet comfort. For example, the excrement sieving device disclosed in existing technology CN112400706B separates excrement through a sieving chamber within the drum linked to a movable door. While this avoids the safety hazards associated with electronic sensors, it suffers from the following key problems:

[0003] The sieving chamber occupies valuable space and restricts pet movement: As a fixed structure, the sieving chamber requires a large volume inside the roller, resulting in cramped space for pets to enter, exit, and turn around. This can be especially oppressive for larger cats, potentially causing them to refuse to use the equipment. Furthermore, the rigid partitions in the sieving chamber may hinder the natural flow of excrement, leading to lower efficiency. Summary of the Invention

[0004] Based on this, and in response to the aforementioned technical problems, this application provides a pet excrement filtration device to solve the technical problem that the fixed structure of the screening chamber in the prior art occupies too much internal space of the pet toilet.

[0005] A pet excrement filtration device includes: a support frame with at least one limiting component; a rotating chamber rotatable on the support frame; a chamber through-hole on the circumferential wall of the rotating chamber; a first filter screen installed on the first sidewall edge of the chamber through-hole inside the rotating chamber; a chamber cover corresponding to the chamber through-hole; and, during the rotation of the rotating chamber, the limiting component contacts or separates from the chamber cover to open or close the chamber through-hole.

[0006] Furthermore, the number of the limiting components is one; the limiting component is a limiting arc surface installed on the support frame;

[0007] The compartment cover is hinged to the second side wall edge of the compartment through hole via a hinge mechanism. When the limiting component is not in contact with the compartment cover, the compartment through hole is in the open state. During the rotation of the rolling compartment, the limiting arc surface is in at least partial contact with the compartment cover.

[0008] When the chamber cover plate rotates to the first position with the rolling chamber, the chamber cover plate and the limiting arc surface change from a non-contact state to a contact state to close the chamber through hole;

[0009] When the chamber cover plate rotates to the second position with the rolling chamber, the chamber cover plate and the limiting arc surface change from a contact state to a non-contact state, thereby opening the chamber through hole.

[0010] Furthermore, the limiting arc surface is provided with several holes.

[0011] Furthermore, the limiting arc surface also includes an edge portion corresponding to the first position;

[0012] The curvature of the edge portion is less than the overall curvature of the limiting arc.

[0013] Furthermore, the limiting arc surface is arc-shaped, annular, or spiral-shaped.

[0014] Furthermore, the compartment cover is provided with at least one first rolling component;

[0015] The limiting arc surface is also provided with a first rolling groove; the first rolling groove is set to correspond to the rotation path of the first rolling component.

[0016] Preferably, the first rolling component is a ball bearing, a roller, or a shaft disposed on the compartment cover.

[0017] Furthermore, the hinge mechanism is a torsion spring;

[0018] The first side of the hopper cover is hinged to the second side wall edge of the hopper through hole via the torsion spring.

[0019] Furthermore, the hinge mechanism is a rotating shaft;

[0020] The rotating shaft is installed at the edge of the silo cover plate near the first side of the silo cover plate, and is hinged to the edge of the second side wall near the through hole of the silo.

[0021] Using the rotating shaft as the axis of rotation, the hopper cover is divided into a first cover and a second cover, wherein the weight of the first cover is not less than the weight of the second cover.

[0022] Furthermore, the number of the limiting components is one;

[0023] The limiting component is an elastic limiting member installed on the support frame;

[0024] The silo cover is slidably connected to the silo through hole via a sliding mechanism;

[0025] The cover plate of the silo is equipped with a stress-bearing component;

[0026] When the chamber cover plate rotates to the first position along the first direction with the rolling chamber, the elastic limiting member contacts the force-receiving member, pushing the chamber cover plate to slide along the sliding mechanism to close the chamber through hole;

[0027] When the chamber cover plate rotates to the second position along the second direction with the rolling chamber, the elastic limiting member contacts the force-receiving member, pushing the chamber cover plate to slide along the sliding mechanism to open the chamber through hole;

[0028] As the rolling chamber continues to rotate in the second direction, the force-bearing component deforms under the force of the elastic limiting component, and the elastic limiting component passes over the force-bearing component.

[0029] Furthermore, the force-bearing component is an elastic sheet or an inclined limiting rib.

[0030] Furthermore, the elastic limiting member includes a limiting post, a spring, and an elastic post;

[0031] One end of the limiting post is fixed to the support frame;

[0032] The spring is sleeved on the outside of the elastic post, and the elastic post passes through a hole on the limiting post and is connected to the other end of the limiting post, so that it can contact the cover plate of the chamber body during the rotation of the rolling chamber.

[0033] Furthermore, the number of the limiting components is two;

[0034] The limiting components are elastic limiting elements installed at different positions on the support frame;

[0035] The cover plate of the silo is equipped with a stress-bearing component;

[0036] The first side edge of the silo cover plate is hinged to the first side wall edge of the silo through hole via a hinge mechanism;

[0037] The second side of the hopper cover is locked to the edge of the second side wall of the hopper through hole by a push-button latch;

[0038] The push-button latch is installed on the second side of the compartment cover plate;

[0039] The second side wall edge of the through hole in the compartment is provided with a locking groove corresponding to the push-button latch;

[0040] When the chamber cover rotates to the first position with the rolling chamber, the first elastic limiting member applies a first pressure to the push-type latch through the force-bearing member on the chamber cover, so that the push-type latch locks with the locking groove to close the chamber through hole;

[0041] When the chamber cover rotates to the second position with the rolling chamber, the second elastic limiting member applies pressure to the push-button latch through the force-bearing member on the chamber cover, causing the push-button latch to disengage from the locking groove and open the chamber through hole.

[0042] Furthermore, the number of the limiting components is two;

[0043] The limiting components are elastic limiting elements installed at different positions on the support frame;

[0044] The silo cover is slidably connected to the silo through hole via a sliding mechanism;

[0045] The cover plate of the silo is provided with at least one load-bearing component;

[0046] When the chamber cover plate rotates to the first position along the first direction with the rolling chamber, the first elastic limiting member contacts the force-bearing member, pushing the chamber cover plate to slide along the sliding mechanism to close the chamber through hole;

[0047] When the chamber cover plate rotates to the second position along the second direction with the rolling chamber, the second elastic limiting member contacts the force-bearing member, pushing the chamber cover plate to slide along the sliding mechanism to open the chamber through hole;

[0048] As the rolling chamber continues to rotate in the second direction, the second elastic limiting member and the first elastic limiting member pass over the force-bearing member in sequence, so that the chamber cover rotates to the first position.

[0049] Furthermore, the support frame is provided with several slots;

[0050] The limiting component is provided with a buckle for engaging with the slot.

[0051] Furthermore, the first filter screen is fixedly or snapped onto the first sidewall edge of the through hole in the chamber.

[0052] Furthermore, the first filter screen is hinged to the first sidewall edge of the through hole in the chamber.

[0053] Furthermore, the end of the first filter screen that is hinged to the first sidewall edge is also provided with a first drive mechanism;

[0054] The first drive mechanism is fixedly connected to the hinge shaft of the first filter screen and the first sidewall edge;

[0055] When the first drive mechanism is working, it drives the first filter screen to rotate around the hinge axis.

[0056] Furthermore, the height of the first filter screen is not greater than the width of the through hole in the chamber.

[0057] The first filter screen is capable of rotating around the first edge of the sidewall to rotate the first filter screen to the outside of the rolling chamber through the chamber through-hole.

[0058] Furthermore, it also includes a second drive mechanism;

[0059] A bearing is installed at the rear end of the rolling chamber;

[0060] The second drive mechanism is connected to the bearing via a coupling, so that when the second drive mechanism rotates, it drives the rolling chamber to rotate via the coupling.

[0061] Furthermore, the feature is that the outer wall of the rolling chamber is provided with a first groove;

[0062] The support frame is equipped with rollers, which are placed in the first groove;

[0063] When the rolling chamber is driven to rotate by the second drive mechanism, the rolling wheel rotates along the first groove.

[0064] Furthermore, one end of the rolling compartment is also provided with a pet entry / exit port.

[0065] Furthermore, a rotating handle is provided at one end of the rolling chamber.

[0066] The aforementioned pet excrement filtration device, during use, achieves automatic opening and closing of the chamber cover as the rolling chamber rotates, through the linkage between the rotating chamber and the limiting component. When sieving cat litter, the opening direction of the included angle of the first filter screen is where cat litter and feces clumps enter. As the rolling chamber rotates, cat litter and feces clumps flow into the included angle opening along the inner wall of the rolling chamber under the action of gravity. The granular cat litter passes through the mesh of the first filter screen to reach the other side of the first filter screen, while the feces clumps are blocked on one side of the first filter screen.

[0067] The beneficial effects of this application are: the open structure of this application eliminates the screening chamber inside the rolling chamber in the prior art, greatly increasing the internal activity area for pets and reducing pet anxiety caused by insufficient space or cramped space. Attached Figure Description

[0068] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0069] Figure 1 A schematic diagram of a pet waste filtration device;

[0070] Figure 2 This is a cross-sectional view of a pet excrement filtration device in one embodiment;

[0071] Figure 3 A cross-sectional view showing the change in the rotational state of the pet excrement filtration device in another embodiment;

[0072] Figure 4 Another cross-sectional view showing the change in the rotational state of the pet excrement filtering device in another embodiment;

[0073] Figure 5 Another cross-sectional view showing the change in the rotational state of the pet excrement filtering device in another embodiment;

[0074] Figure 6 Another cross-sectional view showing the change in the rotational state of the pet excrement filtering device in another embodiment;

[0075] Figure 7 Another cross-sectional view showing the change in the rotational state of the pet excrement filtering device in another embodiment;

[0076] Figure 8 This is a schematic diagram of the pet excrement filtration device in another embodiment;

[0077] Figure 9 This is a schematic diagram of the pet excrement filtration device in another embodiment;

[0078] Figure 10 This is a cross-sectional view of a schematic diagram of a pet excrement filtration device in another embodiment;

[0079] Figure 11 This is a cross-sectional view of a schematic diagram of a pet excrement filtration device in another embodiment;

[0080] Figure 12 This is a schematic diagram of a pet excrement filtration device in another embodiment.

[0081] In the picture:

[0082] 00 - Cat litter; 01 - Clumped feces;

[0083] 1-Support frame; 10-Crossbeam; 100-Slot; 11-Rolling caster;

[0084] 2-Limiting component; 20-First edge; 21-Second edge; 22-Snap fastener; 23-Arc-shaped groove;

[0085] 3-Rolling chamber; 30-Bed through hole; 300-First sidewall edge; 301-Second sidewall edge; 31-Rotating handle; 32-Pet inlet / outlet; 33-Arc-shaped limiting rib;

[0086] 4-First filter;

[0087] 5-Compartment cover plate; 50-First side; 51-Second side; 52-First rolling assembly; 53-Force-bearing component; 5a-First cover plate; 5b-Second cover plate;

[0088] 60 - Hinged mechanism; 61 - Rotating shaft; 62 - Sliding mechanism; 70 - First position; 71 - Second position. Detailed Implementation

[0089] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0090] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0091] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0092] This application aims to address the technical problem in existing pet toilets where the screening chamber occupies too much space, affecting the pet's activity area, by providing a pet excrement filtration device, such as... Figure 1As shown, it includes: a support frame 1, on which at least one limiting component 2 is provided; a rolling chamber 3, which is rotatable on the support frame 1; a chamber body through hole 30 is provided on the circumferential wall of the rolling chamber 3; a first filter screen 4 is also installed on the first side wall edge 300 of the chamber body through hole 30 inside the rolling chamber 3; a chamber body cover plate 5 is provided correspondingly to the chamber body through hole 30; when the rolling chamber 3 rotates, the limiting component 2 contacts or separates from the chamber body cover plate 5 to open or close the chamber body through hole 30.

[0093] Specifically, such as Figure 2 As shown, the support frame 1 supports the rotating chamber 3 to rotate around its central axis. The rotating chamber 3 can be a cylinder, mounted on the support frame 1, and capable of rotating under the action of an external force. In this embodiment, the external force can refer to a force driven by a motor or human force. For example, human force can be used to rotate the rotating chamber 3 so that it rotates on the support frame 1.

[0094] Inside the rolling chamber 3, a first filter screen 4 is provided on the chamber body through hole 30, which is used to filter out fecal clumps when the rolling chamber 3 rotates.

[0095] One side of the first filter screen 4 is installed on the inner wall of the rolling chamber 3 where the chamber through hole 30 is located. That is, the first filter screen 4 is connected to the first side wall edge 300 of the chamber through hole 30, and the first filter screen 4 and the plane where the chamber through hole 30 is located have an angle to ensure that when the rolling chamber 3 rotates, cat litter can enter from the opening of the angle between the first filter screen 4 and the plane where the chamber through hole 30 is located, so as to pass through the mesh of the first filter screen 4 to the other side of the first filter screen 4, while feces clumps are blocked because they are larger than the mesh on the first filter screen 4.

[0096] The through hole 30 on the rolling chamber 3 is a multi-functional through hole.

[0097] It can serve as an entrance / exit for pets to freely enter and exit the rolling chamber for toileting; it can be a vent for adding new cat litter or emptying old cat litter; and it can also be a vent for discharging filtered feces clumps and other waste at appropriate times, achieving a multi-purpose technical effect.

[0098] In this embodiment, the design of placing the chamber cover 5 inside the rolling chamber 3 is abandoned, and the screening chamber is eliminated. The automatic opening and closing of the chamber cover 5 is achieved through the rotation of the rolling chamber 3 and the linkage between the chamber cover 5 and the limiting component 2. During cat litter screening, the opening direction of the included angle of the first filter screen 4 is where cat litter and feces clumps enter. As the rolling chamber 3 rotates, cat litter and feces clumps flow along the inner wall of the rolling chamber 3 into the included angle opening under gravity. The granular cat litter passes through the mesh of the first filter screen 4 to the other side of the first filter screen 4, while the feces clumps are blocked on one side of the first filter screen 4. This achieves efficient separation of pet excrement while significantly increasing pet activity space and user comfort. In existing technologies, the screening chamber in a rolling chamber of the same size occupies about 20%-40% of the effective space inside the drum as a fixed structure, which restricts the pet's activity area. However, the open structure of this application eliminates the screening chamber inside the rolling chamber, greatly increasing the pet's internal activity area and reducing pet anxiety caused by insufficient space or a cramped space.

[0099] In some embodiments, such as Figure 2 The diagram shows a cross-sectional view of the limiting component 2 and the rolling chamber 3. When there is only one limiting component, it can be a limiting arc surface mounted on the support frame 1. The first side 50 of the chamber cover 5 is hinged to the second side wall edge 301 of the chamber through hole 30 via a hinge mechanism 60. In its natural state, the chamber cover 5 is in an open state. During the rotation of the rolling chamber 3, the limiting arc surface and the chamber cover 5 at least partially overlap. The natural state refers to the chamber cover 5 being in an open state when it is not in contact with the limiting component 2, thus opening the chamber through hole 30.

[0100] Specifically, the limiting arc surface refers to the arc-shaped surface installed on the support frame 1 that can completely or partially cover the rolling chamber. The arc-shaped surface can be a cylinder that fits over the outside of the rolling chamber 3. The top of the cylinder has a hole with a width greater than the width of the chamber cover plate. The length of the hole can be determined according to the timing of opening or closing the chamber through hole 30, so as to ensure that the chamber cover plate 5 does not contact the limiting component 2 when it rotates to the hole at the top of the cylinder.

[0101] Optionally, the limiting arc surface can also be a tile-shaped arc surface, which can be set on the support frame 1 and located at the bottom of the rolling chamber 3 to partially surround the rolling chamber 3; when the rolling chamber 3 rolls, the two edges of the tile-shaped arc surface contact or separate from the chamber cover plate 5 to close or open the chamber passage 30 hole.

[0102] Specifically, when the compartment cover 5 rotates with the rolling compartment 3 to the first position 70, the compartment cover 5 and the limiting arc surface change from a non-contact state to a contact state. The compartment cover 5 rotates around the second side wall edge 301 of the compartment through hole 30, and the second side 51 closes on the compartment through hole 30 and contacts the first side wall edge 300 of the compartment through hole 30 to close the compartment through hole 30. When the compartment cover 5 rotates with the rolling compartment 3 to the second position 71, the compartment cover 5 and the limiting arc surface change from a contact state to a non-contact state to open the compartment through hole 30.

[0103] Optionally, the first side 50 of the chamber cover 5 can be hinged to the second side wall edge 301 of the chamber through hole 30 via a torsion spring, ensuring that the position where feces are blocked is the location of the chamber through hole 30. The torsion spring also allows the chamber through hole 30 to remain open when the chamber cover 5 is not subjected to other external forces. Pets, such as cats, can not only enter and exit the rolling chamber 3 through the open chamber through hole 30 to relieve themselves, but also step into the rolling chamber 3 by stepping on the first filter 4. When the pet comes out, it can step on the first filter 4 to let the litter on its paws fall out, and then exit through the chamber through hole 30, preventing the litter from being carried out of the rolling chamber 3.

[0104] In addition, users can add cat litter into the rolling chamber 3 through the open chamber opening 30; or check the condition inside the rolling chamber 3, etc.

[0105] In some embodiments, when the rolling chamber 3 rotates in a first direction, for example... Figure 2 As the chamber rotates clockwise, the chamber cover 5 also rotates clockwise along with the rolling chamber 30, and contacts the first edge 20 of the limiting component 2 at the first position 70. The chamber cover 5 rotates under the pressure of the limiting component 2 and closes the chamber through hole 30.

[0106] As the rolling chamber 3 continues to rotate clockwise, the chamber cover 5 separates from the limiting arc surface as the rolling chamber 3 separates. The chamber cover 5 loses the pressure from the limiting arc surface and springs open under the action of the torsion spring, opening the chamber through hole 30.

[0107] During the period from closing to opening the lid 5, the cat litter mixture inside the rolling chamber 3 flows until it comes into contact with the first filter screen 4. As the rolling chamber 3 rotates, the cat litter in the cat litter mixture passes through the mesh of the first filter screen 4 and reaches the other side of the first filter screen 4, while the feces in the cat litter mixture are blocked by the first filter screen 4 on one side and accumulate at the angle between the first filter screen 4 and the lid 5, thus achieving the separation of cat litter and feces clumps.

[0108] When the bin cover 5 is opened, the fecal clumps that were originally located in the angle area between the bin cover 5 and the first filter screen 4 after filtration lose the support of the bin cover 5 and fall off the first filter screen 4. They then slide through the bin through hole 30 to the outside of the rolling bin 3, thus achieving the purpose of automatically filtering cat litter and automatically discharging fecal clumps as the rolling bin 3 rotates and the limiting components 2, the first filter screen 4, and the limiting components of the bin cover 5 are linked.

[0109] In this embodiment, by setting a limiting arc surface outside the rolling chamber 3, when the rolling chamber 3 rotates, the chamber cover plate 5 contacts or separates from the limiting arc surface, thereby achieving the purpose of closing or opening the chamber through hole 30. This eliminates the traditional structure where the screening chamber is set inside the rolling chamber 3, which not only greatly increases the activity space of the pets in the rolling chamber 3, but also has a simple structure and is easy to implement.

[0110] To address the technical challenge of preventing cat litter from being easily removed from the rolling chamber and the limiting arc surface, some implementations may incorporate several holes on the limiting arc surface. These holes can be strip-shaped, square-shaped, or round, etc., to reduce the weight and raw material costs of the pet toilet while ensuring that the chamber's through-hole 30 remains closed during a portion of the rotation path.

[0111] Furthermore, when cat litter accidentally falls into the rolling chamber 3 and the limiting arc surface, the cat litter can still leak out through the hole, avoiding the technical problems of cat litter being difficult to remove when there are no holes, cat litter wear on the outer wall of the rolling chamber 3 when the rolling chamber 3 rotates, and increased noise.

[0112] In some embodiments, such as Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, in order to solve the technical problem of the screening chamber occupying too much space inside the rolling chamber 3, this application also provides a pet excrement filtration device, wherein the hinge mechanism is a rotating shaft 61; the rotating shaft 61 is installed at the edge of the chamber cover plate 5 near the first side 50 of the chamber cover plate 5, and is hinged to the second side wall edge 301 near the chamber through hole 30; with the rotating shaft 61 as the rotation axis, the chamber cover plate 5 is divided into a first cover plate 5a and a second cover plate 5b, wherein the weight of the first cover plate 5a is not less than the weight of the first cover plate 5b.

[0113] Specifically, the edge of the first cover plate 5a contacts the second side wall edge 301 of the through hole 30 of the chamber body. When the chamber body cover plate 5 rotates around the pivot, the first side 50 of the chamber body cover plate 5 can only rotate and move inside the rolling chamber 3 along with the first cover plate 5a; while the second side 51 of the chamber body cover plate 5 moves outside the rolling chamber 3.

[0114] Because the weight of the first cover plate 5a and the weight of the second cover plate 5b can be controlled, it is equivalent to using the rotating shaft 61 as the support shaft. When the rolling chamber 3 rolls, the height of the first cover plate 5a and the second cover plate 5b will change, similar to the two ends of a seesaw.

[0115] like Figure 4 As shown, when the weight of the first cover plate 5a is slightly greater than the weight of the second cover plate 5b, under natural conditions, the first cover plate 5a will press the second cover plate bb up and stabilize it at a certain angle.

[0116] When the compartment cover 5 rotates to the first position along with the rolling compartment 3, the compartment cover 5 contacts the first edge 20 of the limiting arc surface. The first edge 20 applies pressure to the compartment cover 5, pushing the compartment cover 5 to rotate around the axis of rotation, so that the second cover 5b moves closer to the outer wall of the first side wall edge 300 of the compartment through hole 30, while the first cover 5a moves closer to the inner wall of the second side wall edge 301 of the compartment through hole 30, until the compartment through hole 30 is closed.

[0117] like Figure 6 As shown, between the first position 70 and the second position 71, on the rotation path of the bin cover 5, the limiting component 2 is in contact with the bin cover 5 to ensure a continuous force on the bin cover 5 and prevent the bin cover 5 from opening under gravity, thus avoiding the technical problem of cat litter leakage.

[0118] like Figure 7 As shown, when the silo cover 5 rotates to the second position 71, the second side 51 of the silo cover 5 separates from the first edge 20 of the limiting arc surface. The silo cover 5 loses the external force. The first cover 5a and the second cover 5b need to maintain balance due to gravity, which causes the silo cover 5 to rotate and open the silo through hole 30. The fecal clump 01 falls from the first filter screen 4 along the direction of the arrow to the outside of the rolling silo 3.

[0119] In this embodiment, a single pivot shaft, combined with the weight setting of the differentiated compartment cover 5, allows the compartment cover 5 to automatically open and close at a set position under the action of gravity and the limiting component 2, thereby filtering pet feces. This not only simplifies the structure but also greatly increases the activity space for pets inside the rolling compartment 3.

[0120] In some embodiments, such as Figure 7 As shown, the curvature of the first edge of the limiting arc surface is less than the overall curvature of the limiting arc.

[0121] The edge of the limiting arc surface here refers to the first edge 20 of the limiting arc surface that comes into contact with the compartment cover 5 from non-contact to contact, thus closing the compartment through hole 30. That is, the first edge 20 of the limiting arc surface is set to an arc shape with a smaller curvature, ensuring that the closer to the edge of the limiting arc surface, the greater the distance between the inner wall of the limiting arc surface and the rolling compartment 3. In this way, when the rolling compartment 3 rotates, the compartment cover 5 can be closed slowly, reducing the noise caused by the compartment cover 5 closing the compartment through hole 30 as soon as it comes into contact with the limiting component 2, and avoiding the technical problem of potentially startling the cat.

[0122] In some embodiments, the limiting arc surface can be annular. When the rolling chamber 3 rotates, it can partially overlap with the chamber cover 5 to achieve automatic opening and closing of the chamber cover 5.

[0123] Specifically, during the rotation of the rolling chamber 3, the limiting arc surface only partially contacts the chamber cover plate 5, reducing the contact area between the chamber cover plate 5 and the limiting arc surface, thereby reducing friction damage to the equipment.

[0124] Optionally, in some embodiments, the limiting arc surface may also be spiral-shaped.

[0125] Specifically, the limiting arc surface is set to a spiral shape. When the bin cover rotates to the bottom of the rolling bin, the limiting arc surface can cover the middle position of the bin cover, ensuring that the bin cover and the bin through hole fit together perfectly. This prevents the part of the bin cover without the support of the limiting arc surface from lifting up and leaking cat litter due to the pressure of cat litter on the bin cover.

[0126] In some embodiments, such as Figure 5 As shown, in order to avoid damage to components caused by long-term friction between the outer wall of the rolling chamber 3 and the limiting arc surface when there is cat litter in the rolling chamber 3, as well as equipment noise caused by friction between the limiting arc surface and the rolling chamber 5, at least one first rolling component 52 is provided on the chamber cover plate 5; a first rolling groove is also provided on the limiting arc surface; the first rolling groove is set in accordance with the rotation path of the first rolling component 52.

[0127] In this embodiment, the first rolling component 52 contacts the limiting arc surface, preventing the outer wall of the chamber cover 5 from directly contacting the limiting component 2, thereby reducing friction and lowering the noise when the rolling chamber 3 rolls; it also prevents cat litter 00 from leaking into the gap between the rolling chamber 3 and the limiting component 2, and prevents the cat litter 00 from causing wear on the equipment when the rolling chamber 3 rotates.

[0128] Optionally, the first rolling component 52 is a ball bearing or a roller embedded in the compartment cover plate 5.

[0129] Specifically, such as Figure 5As shown, several rolling balls can be embedded at the opening of the compartment cover 52 to make the force on the compartment cover 5 more even. Preferably, one rolling ball can be embedded. The rolling ball rolls along the first rolling groove to ensure that the compartment cover 5 can roll on the inner wall of the limiting arc surface, reducing friction and increasing the smoothness of the rotation of the rolling compartment 3. Moreover, because the gap between the rolling compartment 3 and the limiting arc surface is reduced, it can also prevent the cat from sticking its paw into the gap between the two, reducing the risk of potentially injuring the cat.

[0130] Optionally, when there are several holes on the limiting arc surface, it is necessary to ensure that there are no holes on the rotation path of the rolling ball on the limiting arc surface; that is, the rolling ball will not slip into the holes on the limiting arc surface when it rolls on the rotation path, so as to avoid the problem of cat litter leakage caused by the opening of the compartment cover 5 under the action of the torsion spring.

[0131] Of course, regardless of whether the first rolling component 52 is a spherical protrusion, a ball bearing, a rolling shaft, or a rolling wheel, a small gap can exist between the outer wall of the rolling chamber 3 and the inner wall of the limiting arc surface, such as a gap between 4mm and 10mm, to avoid direct contact between the outer wall of the rolling chamber 3 and the inner wall of the limiting component 2, which would cause equipment damage and increased energy consumption due to long-term friction. The range of the gap is not specifically limited in this embodiment and can be set according to requirements and the structure of the chamber cover 5.

[0132] In some embodiments, to address issues related to litter disposal, internal cleaning of the rolling chamber 3, and pet access for toileting, the length of the inner wall of the limiting arc surface can be set as needed. In some embodiments, the length of the limiting arc surface can also be adjusted, i.e., the height of the first position 70 and the second position 71 of the contact and separation between the chamber cover 5 and the limiting arc surface can be adjusted to control the position or timing of the chamber cover 5 closing or opening, adapting to different working conditions and needs.

[0133] In some embodiments, this application also provides other innovative solutions, where the number of limiting components 2 is one; such as Figure 8 As shown, the limiting component 2 is an elastic limiting component installed on the support frame 1; the silo cover plate 5 is slidably connected to the silo through hole 30 through the sliding mechanism 62; and the silo cover plate 5 is provided with a force-bearing component 53.

[0134] When the chamber cover 5 rotates to the first position 70 along the first direction with the rolling chamber 3, the elastic limiting member contacts the force-bearing member 53, pushing the chamber cover 5 to slide along the sliding mechanism 62 against the rotation direction of the rolling chamber 3 to close the chamber through hole 30.

[0135] When the chamber cover 5 rotates to the second position 71 along the second direction with the rolling chamber 3, the elastic limiting member contacts the force-bearing member 53, pushing the chamber cover 5 to slide along the sliding mechanism 62 to open the chamber through hole 30.

[0136] As the rolling chamber 3 continues to rotate in the second direction, the force-bearing component 53 deforms under the force of the elastic limiting component, and the elastic limiting component passes over the force-bearing component 53.

[0137] When it is necessary to filter out clumped feces, the rolling chamber 3 can be rotated in the first direction, for example, counterclockwise. When the chamber cover 5 reaches the first position 70 as the rolling chamber 3 rotates, the elastic limiting member contacts the force-bearing member 53 of the chamber cover 5 to push the chamber cover 5 to slide clockwise along the sliding mechanism 62 to close the chamber through hole 30.

[0138] Then, the suspending chamber 3 is rotated along the second direction, for example, clockwise. When the chamber cover 5 rotates clockwise with the suspending chamber 3 to the second position 71, the elastic limiting member contacts the force-bearing member 53 on the chamber cover 5. As the suspending chamber 3 continues to rotate, the elastic limiting block 2 pushes the chamber cover 5 to slide counterclockwise along the sliding mechanism 62 to open the chamber through hole 30. The fecal clumps located in the angle area between the first filter screen 4 and the chamber through hole 30 fall out of the gradually opening chamber through hole 30 and into the outside of the suspending chamber 3. The first position 70 is above the second position 71.

[0139] Then continue along the second direction, that is, rotate the rolling chamber 3 clockwise. When the chamber cover 5 slides to the end on the sliding mechanism 62, the limiting component 2 passes over the force-bearing component 53 to ensure that the force-bearing component 53 can move from one side of the elastic limiting component to the other side, completing a filtration cycle.

[0140] Specifically, the force-bearing component 53 is an elastic piece, which is a paddle-shaped piece with elasticity, protruding above the outer wall of the compartment cover 5, and can bend to both sides under the action of external force and return to its original shape after the external force disappears.

[0141] When the chamber cover 5 rotates with the rolling chamber 3 in the first direction, for example counterclockwise, to the first position, the elastic limiting member contacts the force-bearing member 53, pushing the chamber cover 5 to slide along the sliding mechanism 62 to close the chamber through hole 30; then the rolling chamber is controlled to rotate in the second direction, for example clockwise, to the second position 71, the elastic limiting member contacts the elastic sheet, pushing the chamber cover 5 to slide along the sliding mechanism 62 to open the chamber through hole 30; when the rolling chamber 3 continues to rotate clockwise, the chamber cover 5 slides to the end of the slide rail, the elastic sheet deforms and bends under the force of the elastic limiting member, the elastic limiting member passes over the elastic sheet, ensuring that the rolling chamber 3 continues to rotate smoothly forward.

[0142] Furthermore, such as Figure 8As shown, in order to prevent the slide rail and slide groove connecting the hopper cover plate 5 to the side wall of the hopper through hole 30 from loosening and causing the hopper cover plate 5 to slide freely due to gravity, in some embodiments, the side of the hopper cover plate 5 of this application is also provided with a limiting protrusion. The limiting protrusion can be stuck on one of the side wall edges of the hopper through hole 30 when the hopper cover plate 5 is completely merged into the hopper through hole 30.

[0143] This embodiment uses an elastic sheet installed above the outer wall of the chamber cover 5, and controls the force exerted on the elastic limiting member by the distance between the elastic sheet and the slide rail. This ensures that the elastic limiting member can push the chamber cover 5 to slide along the slide rail normally, and can also return to the initial set position. If the feces cannot be completely filtered in one go, the above operation can be repeated to start a new filtration cycle. Most importantly, it eliminates the technical problem of setting a screening chamber inside the rolling chamber 3, which occupies a lot of internal space of the rolling chamber 3 and affects the cat's activity.

[0144] Optionally, in some embodiments, the force-bearing member 53 on the silo cover plate 5 may also be an inclined limiting rib.

[0145] With the force-bearing component 53 set as an inclined plane, when the elastic limiting component has pushed the chamber cover 5 to the end of the slide rail, if the rolling chamber 3 continues to rotate in the original direction, the elastic limiting component can cross the inclined limiting rib along the inclined plane of the limiting rib to reach the other side of the limiting rib and start a new filtration cycle.

[0146] Furthermore, the elastic limiting component includes a limiting post, a spring, and an elastic post; one end of the limiting post is fixed to the support frame 1; the spring is sleeved outside the elastic post, and the elastic post passes through a hole on the limiting post and is connected to the other end of the limiting post, so that it can contact the chamber cover plate 5 during the rotation of the rolling chamber 3.

[0147] When the chamber cover 5 has reached the end of the slide rail, if the rolling chamber 3 continues to rotate in the original direction, the elastic limiting member will cross the limiting rib along the inclined surface of the limiting rib and reach the other side of the limiting rib, thus starting a new filtration cycle.

[0148] During this process, when the elastic column of this embodiment is located at the highest point of the inclined limiting rib, the elastic column drives the limiting column to deform and the spring to compress, which greatly reduces the resistance caused by the elastic limiting component when the rolling chamber 3 rotates, and also reduces rotation noise.

[0149] In some embodiments, the number of limiting components is two.

[0150] The limiting component 2 is an elastic limiting component installed at different positions on the support frame 1; the compartment cover plate 5 is provided with a force-bearing component 53; the first side 50 of the compartment cover plate 5 is hinged to the second side wall edge 301 of the compartment through hole 30 through a hinge mechanism 60, and the second side 51 of the compartment cover plate 5 is locked to the compartment through hole 30 through a push-type lock; the push-type lock is installed on the second side 51 of the compartment cover plate 5; the first side wall edge 300 of the compartment through hole 30 is provided with a locking groove corresponding to the push-type lock; the push-type lock can engage or disengage with the locking groove under external force to open and close the compartment cover plate 5.

[0151] Specifically, in this embodiment, different positions refer to different locations on the rotation path of the force-bearing member 53.

[0152] When the chamber cover 5 rotates with the rolling chamber 3 to the first position 70, the first elastic limiting member applies the first pressure to the push-type lock through the force-bearing member 53 on the chamber cover 5, so that the push-type lock locks with the lock groove and closes the chamber through hole 30.

[0153] When the chamber cover 5 rotates with the rolling chamber 3 to the second position 71, the second elastic limiting member applies pressure to the push-button latch through the force-bearing member 53 on the chamber cover 5, so that the push-button latch disengages from the lock groove and opens the chamber through hole 30.

[0154] Specifically, the push-button latch includes a latch body fixed to the second side 51 of the compartment cover plate 5, wherein the latch body includes an elastic element (such as a spring) and a hook, and the compartment cover plate 5 acts as the force-bearing component of the latch body; a slot is provided on the first side wall edge 300 of the compartment through hole 30 for engaging with the hook of the latch body.

[0155] Specifically, the push-button buckle achieves locking and releasing through the deformation of the elastic element. When the compartment cover 5 closes under the pressure of the first elastic limiter, the hook of the buckle body is inserted into the slot under the action of the elastic element (such as a spring), forming a secure locking state. Because the elastic element is under force, that is, the spring is compressed, storing elastic potential energy, it ensures that the hook and the slot are tightly engaged.

[0156] When the compartment cover 5 is subjected to the force of the second elastic limiting member, it is equivalent to pressing the compartment cover 5 again. The compartment cover 5 is still a force-bearing component, which pushes the elastic element inside the buckle body to push the hook out of the slot. The spring releases the stored potential energy, causing the hook to rebound quickly so that the hook is out of the slot. After the hook is out of the slot, the compartment cover 5 opens under the action of the torsion spring.

[0157] In this embodiment, by placing the cage cover 5 outside the rolling cage 3, the activity space for the cat inside the rolling cage 3 is greatly increased. Furthermore, this solution not only allows for pressure control of the opening and closing of the cage cover 5 through elastic limiting components, but also...

[0158] As an improvement, this application can also eliminate the limiting component 2, and directly control the opening and closing of the chamber cover 5 by hand to complete the filtration and discharge of fecal clumps.

[0159] Furthermore, the force-bearing component is a protrusion higher than the outer wall of the outlet cover plate 5. When the rolling chamber 3 rotates, the protrusion can contact the two elastic limiting components in sequence, increasing the force on a specific position and improving the accuracy of opening or closing the outlet cover plate 5.

[0160] In some embodiments, the number of limiting components is two.

[0161] The limiting component 2 is an elastic limiting component installed at different positions on the support frame 1; the bin cover plate 5 is slidably connected to the bin through hole 30 through the sliding mechanism 62; the bin cover plate is provided with at least one force-bearing component.

[0162] When the chamber cover 5 rotates with the rolling chamber 3 to the first position 70 in the first direction, the first elastic limiting member contacts the force-bearing member 53 to push the chamber cover 5 to slide along the sliding mechanism 62 to close the chamber through hole 30.

[0163] When the chamber cover 5 rotates to the second position along the second direction with the rolling chamber 3, the second elastic limiting member contacts the force-bearing member 53 to push the chamber cover 5 to slide along the sliding mechanism 62 to open the chamber through hole 30.

[0164] As the rolling chamber 3 continues to rotate in the second direction, the second elastic limiting member and the first elastic limiting member pass over the force-bearing member 53 in sequence, so that the chamber cover 5 rotates to the first position 70.

[0165] Specifically, when it is necessary to filter out fecal clumping, the rolling chamber is first rotated in the first direction, for example, counterclockwise. When the chamber cover 5 reaches the first position as the rolling chamber 3 rotates, the first elastic limiting member contacts the force-bearing member 53 on the chamber cover 5 to push the chamber cover 5 to move clockwise along the sliding assembly 62 to close the chamber through hole 30.

[0166] Then, along the second direction, for example, rotating the rolling chamber 3 clockwise, when the chamber cover 5 rotates clockwise with the rolling chamber 3 to the second position, the second elastic limiting member contacts the force-bearing member 53 on the chamber cover 5. As the rolling chamber 3 continues to rotate, the second elastic limiting member pushes the chamber cover 5 to slide in the opposite direction along the sliding assembly 62 to open the chamber through hole 30. The fecal clump 01 located in the angle area between the first filter screen and the chamber cover 5 falls out of the gradually opening chamber through hole 30 and into the outside of the rolling chamber 3.

[0167] When the chamber cover 5 slides to the end on the sliding assembly 62, as the rolling chamber 3 continues to rotate in the second direction, the force exerted by the second elastic limiting member on the force-bearing member increases to a certain extent, causing it to deform and separate from the chamber cover 5; that is, the second elastic limiting member passes over the force-bearing member 53, and as the rolling chamber 3 continues to rotate clockwise, the first limiting assembly contacts the force-bearing member 53 again, and as the rolling chamber 3 continues to rotate, the first elastic limiting member also passes over the force-bearing member 53, completing one filtration cycle.

[0168] In this embodiment, by setting the two limiting components 2 in different positions, the through hole of the compartment can be closed and opened at different positions and times, providing another solution to increase the activity space of the pet in the rolling compartment 3.

[0169] This application achieves the opening and closing of the compartment cover through pure mechanical linkage, avoiding reliance on sensors and combining high safety with low maintenance costs, providing an innovative solution for the field of smart pet toilets. Furthermore, the compartment cover 5 is located outside or in a hollow position within the rolling compartment 3. This open structure greatly increases the activity space for the pet inside the rolling compartment 3. Moreover, because the compartment cover 5 is directly in contact with fecal clumps 01, its location outside the rolling compartment 3 makes thorough cleaning easier, preventing bacterial growth and ensuring the pet's health.

[0170] Furthermore, in traditional litter boxes, the lid 5 of the compartment is closed when the cat uses the litter box. This closed structure can make cats feel depressed, especially for timid or sensitive cats, who may refuse to use the litter box. In this embodiment, the through-hole 30 of the compartment can be open when the cat uses the litter box. This open design creates a more spacious and bright environment, reducing the pet's psychological stress.

[0171] Moreover, the rigid partitions in traditional sieving chambers can hinder cats' sand-digging behavior, while the open design of this embodiment allows cats to dig naturally, satisfying their natural needs.

[0172] In some embodiments, such as Figure 9 As shown, when the limiting component is a limiting arc surface or annular shape, the support frame 1 is provided with a slot 100; the bottom of the limiting component 2 is provided with several buckles 22 for engaging with the slot. The limiting component 2 and the support frame 1 can be fixed by buckle connection to achieve adjustment of the position of the limiting component 2.

[0173] The crossbeam 10 of the support frame 1 with the slot 100 can be removed from the support frame 1 to facilitate adjustment of the limiting component 2.

[0174] Specifically, when it is necessary to adjust the position of the limiting component 2, the crossbeam 10 is pulled outward, and then the limiting component 2 is rotated to install the other buckles 22 into the slot 100.

[0175] Optionally, in some embodiments, an elastic buckle or pin may be provided at one end of the limiting component 2, and a slot 100 or protrusion may be provided on the support frame 1 to cooperate with the elastic buckle or pin. The installation position of the limiting component 2 can be adjusted by the engagement or disengagement of the buckle and the slot.

[0176] Furthermore, such as Figure 9 As shown, one end of the rolling chamber 3 is also provided with a rotating handle 31;

[0177] Furthermore, such as Figure 9 As shown, one end of the rolling chamber 3 is also provided with a pet entry / exit hole 32.

[0178] One end of the rolling chamber 3 can be lifted off the support frame 1 to allow the waste cat litter 00 to be poured out from the end with the pet inlet / outlet.

[0179] Optionally, one end of the rolling chamber 3 can be lifted off the support frame 1 so that the height of the edge of the limiting component 2 can be adjusted without removing the crossbeam 10 on the support frame 1.

[0180] In this embodiment, the position of the limiting component 2 is adjusted by the buckle 22 and the slot 100. This not only has a simple structure and low cost, but also allows for manual operation, greatly reducing costs. Of course, in this embodiment, the method of fixing the limiting component 2 to the support frame 1 is not limited.

[0181] Specifically, when emptying cat litter 00, you can choose to install the second edge of the limiting component 2 to the bottom area of ​​the rolling chamber 3 or remove the limiting component 2. After the chamber cover 5 is no longer restricted by the limiting component 2, it will pop open to expose the chamber through hole 30. The cat litter 00 inside the rolling chamber 3 can then flow from the chamber through hole 30 to the outside of the rolling chamber 3, thus completing the emptying of the cat litter 00.

[0182] Of course, after cleaning the rolling chamber 3, the chamber through hole 30 can be rotated to the bottom area of ​​the rolling chamber 3 to allow the sewage to flow out of the rolling chamber 3.

[0183] When you need to add new cat litter, you can rotate the lid 5 of the bin to the top position of the rolling bin 3 and pour the new cat litter into the rolling bin through the through hole 30.

[0184] This embodiment achieves multiple uses for a single hole by adjusting the position of the limiting block. That is, the through hole in the silo can not only facilitate the excretion of clumps of feces, but also perform the following functions:

[0185] (1) When the rolling chamber 3 is stationary, the chamber body through hole 30 is in the open state by default, and the chamber body through hole 30 can dissipate odors and allow air to pass through.

[0186] Because pet fur easily picks up the smell of feces, especially when cats defecate, current pet toilets with only a 32-inch pet inlet / outlet cannot quickly dissipate the smell of fresh feces, which quickly gets stuck to the pet's fur.

[0187] In this application, when the rolling chamber 3 is stationary, the chamber cover 5 can be in an open state. The pet can enter the rolling chamber 3 through the chamber through hole 30 or through the pet inlet / outlet hole 32 on the rolling chamber 3. The chamber through hole 30 and the pet inlet / outlet hole 32 can form air convection, allowing the odor to quickly drift out of the rolling chamber and preventing the odor from sticking too much to the pet's fur.

[0188] The 30-hole in the bin can be opened to serve as a window for cleaning old cat litter and adding new cat litter.

[0189] That is, the timing of closing or opening the bin cover 5 can be adjusted by changing the position and height of the limiting component 2 on the support frame 1, so as to achieve the purpose of cleaning, adding, and cleaning the rolling bin.

[0190] The through hole 30 in the compartment can also be used as an entrance and exit hole for pets to enter and exit the rolling compartment.

[0191] Specifically, when the rolling chamber is stationary, the position of the chamber cover when it is open can be set according to needs to ensure that the pet can enter the rolling chamber through the chamber opening to relieve itself, and the first filter can be used as a stepping stone for the cat to prevent the pet from taking cat litter out of the rolling chamber.

[0192] The through hole 30 in the enclosure can also be a feces observation hole, making it convenient for users to observe the pet's defecation.

[0193] In some embodiments, such as Figure 3 As shown, the first filter screen 4 is fixedly connected to the first side wall edge 300 of the through hole in the chamber, and there is an angle between the first filter screen 4 and the through hole 30 in the chamber, such as... Figure 5 As shown, this ensures that the cat litter mixture can pass through the opening at the angle between the first filter 4 and the closed chamber cover 5.

[0194] Specifically, the first filter 4 is installed on the first side wall edge 300 of the bin body through hole 3, while the bin body cover 5 is installed on the second side wall edge 301 of the bin body through hole 30. When the rolling bin 3 rotates along the first direction, the cat litter mixture first flows through the bin body cover 5 and then through the first filter 4, ensuring that the fecal clump 01 is blocked between the first filter 4 and the bin body cover 5, so that when the bin body cover 5 is opened, the fecal clump 01 can fall from the bin body through hole 30 to the outside of the rolling bin 3.

[0195] In some embodiments, the first filter 4 engages with the first sidewall edge 300 of the chamber through-hole 30.

[0196] In this embodiment, the first filter 4 can be stuck on the first side wall edge 300 of the through hole 30 of the chamber body, and can be removed for cleaning or replacement.

[0197] In some embodiments, such as Figure 2 As shown, the first filter 4 is hinged to the first sidewall edge 300 of the bin body through hole 30. For example, the first filter 4 can be hinged to the first sidewall edge 300 of the bin body through hole 30 via a damping hinge, and then the angle between the first filter 4 and the bin body through hole 30 can be adjusted according to different cat litter volumes to adapt to different working conditions and needs.

[0198] Importantly, such as Figure 10 As shown, in the non-filtration state, the first filter screen 4 can be rotated to adhere to the inner wall of the rolling chamber 3, ensuring a larger space for pet movement within the rolling chamber 3. Furthermore, it solves the technical problem of the fixed-angle first filter screen 4 failing to automatically adjust its angle according to the distribution of cat litter 00 and fecal clumps 01, leading to material accumulation and affecting the screening effect.

[0199] For example, if the fixed angle is too small, the litter flow will be insufficient, resulting in low sieving efficiency; if the fixed angle is too large, fecal clumps cannot be effectively intercepted, resulting in poor sieving effect.

[0200] Furthermore, the fixed-angle first filter screen 4 can be well adapted to different amounts of cat litter 00. Therefore, in this embodiment, the angle of the first filter screen 4 inside the rotating chamber 3 can be dynamically adjusted according to the rotation speed of the rotating chamber 3 to ensure the best screening effect under different working conditions. Increasing the installation angle of the first filter screen 4 accelerates the return speed of the cat litter 00, while decreasing the installation angle of the first filter screen 4 forms a steeper screen surface, ensuring that excrement is effectively intercepted and discharged better and more smoothly out of the rotating chamber 3.

[0201] Furthermore, a first drive mechanism is provided at the end of the first filter screen 4 that is hinged to the first side wall edge 300; the first drive mechanism is fixedly connected to the hinge shaft of the first filter screen 4 and the first side wall edge 300.

[0202] When the first drive mechanism is working, it drives the first filter screen 4 to rotate around the hinge axis.

[0203] In this embodiment, the first filter 4 is rotated within the rolling chamber 3 via a first driving mechanism, which is more convenient. Most importantly, in the non-filtration state, the first filter 4 can be rotated to adhere to the inner wall of the rolling chamber 3, ensuring more space for the pet to move around within the rolling chamber 3.

[0204] The first driving mechanism can be a motor.

[0205] Furthermore, such as Figure 11As shown, the height of the first filter screen 4 is not greater than the width of the through hole 30 in the chamber; the first filter screen 4 can rotate around the edge of the first side wall to rotate the first filter screen 4 to the outside of the rolling chamber 3.

[0206] In this embodiment, the first filter 4 can be rotated directly outside the rolling chamber 3, making it convenient for users to quickly disassemble and clean the first filter 4, thus avoiding bacterial growth caused by cat litter residue.

[0207] For example, users can easily remove and clean the first filter screen 4 by simply rotating it to the outer position, without any complicated steps. Furthermore, after rotating the first filter screen 4 to the outer position, users can rinse it with water to quickly remove any residue.

[0208] Importantly, in the non-filtering state, after the first filter 4 rotates to the outside, the internal space of the rolling chamber 3 can be further freed up, expanding the pet's activity area. Moreover, after the first filter 4 rotates to the outside, the inner wall of the rolling chamber 3 becomes smoother, avoiding sharp edges from causing injury to the pet.

[0209] In addition, the first filter 4 can be rotated to be flush with the horizontal plane, and the first filter 4 can also be used as a step for pets to enter and exit the rolling chamber 3, making it convenient for pets to enter and exit.

[0210] In some embodiments, in order to solve the problem of users not wanting to manually scoop up poop, the device further includes a second drive mechanism; an outer gear ring is provided on the outer wall of the rolling chamber 3; the motor gear of the second drive mechanism meshes with the outer gear ring to drive the rolling chamber 3 to rotate on the support frame 1.

[0211] In some embodiments, the rotation of the rolling chamber 3 can also be driven by an electric motor.

[0212] Specifically, an external gear ring is provided on the outer wall of the rolling chamber 3; the external gear ring meshes with the motor gear of the second drive mechanism on the support frame 1.

[0213] The outer gear ring is fixed to the outer wall of the rolling chamber 3 and meshes with the motor gear of the second drive mechanism to transmit power.

[0214] Specifically, the external gear ring can be made of high-strength steel to ensure durability and transmission efficiency.

[0215] The second drive mechanism is mounted on the support frame and drives the external gear ring to rotate via a motor gear. For example, a stepper motor or servo motor with a rated torque of 1-2 N·m can be selected to ensure that the rotating chamber can be driven to rotate. The specific torque can be selected as needed and is not limited here.

[0216] When filtering out clumped feces, the second drive mechanism is activated, and the motor gear meshes with the external gear ring, driving the rolling chamber 3 to rotate. For example, the motor gear drives the external gear ring at a speed of 10-20 rpm, allowing the rolling chamber to rotate smoothly. The rolling wheel 11 rolls within the first groove, providing radial support and ensuring the stability of the rolling chamber 3 during rotation. For example, the engagement between the rolling wheel and the first groove reduces friction, ensuring smooth operation.

[0217] When the rolling chamber 3 rotates, cat litter and excrement flow from high to low as the rolling chamber 3 rotates. When it flows to the first filter screen 4, the cat litter passes through the mesh of the first filter screen 4, while the feces clump together and are blocked by the first filter screen 4 and separated from the cat litter. The cat litter also flows back to the bottom through the first filter screen 4, and the excrement is intercepted.

[0218] Specifically, when the rotating chamber 3 rotates to a certain angle, the first filter screen 4 forms an inclined screen surface to ensure screening effect. The chamber cover separates from the limiting component and opens the chamber through hole to clean up fecal clumps.

[0219] This application achieves smooth rotation of the rolling chamber 3 by setting an external gear ring on the outer wall of the rolling chamber 3 and meshing it with the motor gear of the second drive mechanism on the support frame 1, while utilizing the cooperation between the rolling wheel 11 and the first groove. Motor drive:

[0220] The second drive mechanism drives the rotating chamber 3 to rotate, enabling automated control and reducing manual operation. For example, users can control the motor's start / stop and speed via buttons or a mobile app, improving ease of use.

[0221] Furthermore, to achieve automatic and remote control of the rotating chamber's rotation, the device also needs to include a microcontroller connected to a motor drive module. The motor drive module converts the microcontroller's signals into drive signals that the motor can execute, controlling the motor's start / stop, speed, and direction of rotation. A power supply is provided to power the drive motor, microcontroller, and other components; a DC power adapter can be used. In addition, to enable remote control, a Wi-Fi or Bluetooth connection allows users to remotely control the motor's start / stop and speed via a mobile app, enhancing the user experience.

[0222] Optionally, the device further includes a second drive mechanism; a bearing is installed at the rear end of the rolling chamber 3; the second drive mechanism is connected to the bearing via a coupling so that when the second drive mechanism rotates, it drives the rolling chamber 3 to rotate via the coupling.

[0223] Specifically, a bearing is installed at the rear end of the rolling chamber 3, and a second drive mechanism, such as a motor, is fixed on the support frame 1. The second drive mechanism is connected to the bearing through a coupling so that when the second drive mechanism rotates, the rolling chamber 3 is driven to rotate through the coupling.

[0224] Furthermore, such as Figure 8 As shown, the outer wall of the rolling chamber 3 is provided with a first groove; the support frame is provided with a rolling wheel 11, which is placed in the first groove; when the rolling chamber 3 is driven to rotate by the second drive mechanism, the rolling wheel 11 rotates along the first groove.

[0225] In this embodiment, the second drive mechanism is directly connected to the bearing at the tail end of the rolling chamber, and power is transmitted using a coupling. Simultaneously, the smooth rotation of the rolling chamber 3 is achieved through the cooperation of the rolling wheel 11 with the first groove. The second drive mechanism is directly connected to the bearing at the tail end of the rolling chamber via a coupling, resulting in a short power transmission path and high efficiency.

[0226] Furthermore, eliminating the external gear ring simplifies the equipment structure, reduces the number of mechanical parts, and lowers the failure rate. For example, there's no need to regularly check gear meshing, reducing maintenance workload. Additionally, it prevents playful cats from sticking their paws into the internal gear mesh, thus avoiding the danger of a kitten being caught when the rotating chamber rotates.

[0227] Among them, the rolling wheel 11 can be made of low-friction material (such as nylon or polytetrafluoroethylene) to reduce frictional resistance.

[0228] Furthermore, it also includes a microcontroller; an infrared sensor connected to the microcontroller is provided on the through hole of the enclosure or the pet's in / out hole; the microcontroller is connected to the first drive mechanism and the second drive mechanism, and is used to receive the sensor signal from the infrared sensor and control the start, stop and rotation direction of the drive motor.

[0229] Specifically, the infrared sensor can detect in real time whether the pet is inside the rolling chamber 3, ensuring the safety of the cleaning process. When the infrared sensor detects a pet inside the rolling chamber 3, the microcontroller immediately pauses the drive motor to prevent injury to the pet. When the pet enters the rolling chamber 3, the infrared sensor detects a signal, and the microcontroller prevents the drive motor from starting, ensuring the pet's safety. For example, even if the user accidentally starts the cleaning program while the pet is inside the rolling chamber, the device will not operate.

[0230] Furthermore, it features intelligent control. Upon detecting a pet leaving the swivel chamber, the microcontroller automatically starts the drive motor to begin the cleaning process. It can also be integrated with cameras, Wi-Fi, or Bluetooth modules to monitor the pet's entry and exit, littering, and other activities via a mobile app. The motor drive ensures precise control over the swivel chamber's rotation speed and angle, adapting to different sieving needs. For example, users can set different rotation speeds and angles based on the type of cat litter to ensure optimal sieving results.

[0231] Furthermore, this application can also be equipped with corresponding physical buttons, which users can use to control the start, stop and speed of the motor, providing a simple local control method suitable for users who are not familiar with mobile apps.

[0232] In some embodiments, such as Figure 9 As shown, this application also provides a pet feces filtration device, in which a gear is connected to the tail end of the rolling chamber, and a rotating handle 31 is provided on one end, so that the user can drive the rolling chamber 3 to rotate on the support frame 1 through the handle.

[0233] Specifically, one end of the rolling chamber 3 is connected to the support shaft on the support frame 1, and the rolling chamber 3 can rotate on the support shaft under human power.

[0234] Furthermore, users can easily drive the rotating chamber by manually turning the handle, without requiring additional power or complicated operations. Users can also adjust the rotation speed and angle of the rotating chamber 3 as needed, achieving precise control over its rotation. For example, users can slowly turn the handle to ensure that excrement is thoroughly separated.

[0235] In some embodiments, a fecal collection box is also included; the fecal collection box is disposed below the through hole of the hopper when the hopper cover is in the second position, to ensure that the feces can slide into the fecal collection box.

[0236] In some embodiments, such as Figure 12 As shown, this application also provides a pet excrement filtration device, including a support frame 1, on which at least one limiting component 2 is provided; a rolling chamber 3, which is rotatable on the support frame 1; a chamber body through hole 30 is provided on the circumferential wall of the rolling chamber 3; a first filter screen 4 is also installed on the first side wall edge 300 of the chamber body through hole 30 inside the rolling chamber 3; when the rolling chamber 3 rotates, the chamber body through hole overlaps or does not overlap with the limiting component to open or close the chamber body through hole.

[0237] Specifically, the limiting component is an arc-shaped limiting component 2, the width and length of which are not less than the through hole 30 of the compartment body.

[0238] Optionally, the limiting component 2 is an arc surface with a width and length greater than the width and length of the through hole 30 of the bin body, respectively. When the through hole 30 of the bin body rotates to a specific position, such as when the through hole 30 of the bin body completely overlaps with the limiting component 2, the limiting component 2 can fit tightly with the outer wall of the rolling bin 3 to cover the through hole 30 of the bin body, so as to prevent the cat litter 00 from leaking when the through hole 30 of the bin body is located at the bottom or near the bottom of the rolling bin 3.

[0239] Furthermore, the first sidewall edge 300 and the second sidewall edge 301 of the through hole 30 are both designed as beveled surfaces to allow the cat litter 00 to flow back from the inner wall of the limiting component 2 to the inner wall of the rolling chamber 3, thereby improving the return efficiency of the cat litter 00.

[0240] Furthermore, the two side edges of the non-side wall edge of the through hole 30 of the hopper body are respectively provided with arc-shaped limiting ribs 33 with a length not less than the width of the through hole 30 of the hopper body, and the limiting component 2 is provided with a corresponding arc-shaped groove 23 to accommodate the arc-shaped limiting rib.

[0241] In addition to ensuring that the rolling chamber 3 rotates along a specific trajectory on the limiting component 2, the arc-shaped limiting rib 23 can also prevent cat litter 00 from leaking out from the gap between the side edge of the limiting component 2 and the chamber through hole 30.

[0242] Optionally, if the length of the limiting component 2 is equal to the length of the through hole 30 in the bin, since the arc-shaped limiting rib 33 is located at the edge of the through hole 30 in the bin, the arc-shaped limiting rib 33 can also be directly attached to the two edges of the limiting component 2 to prevent cat litter from leaking out of the gap.

[0243] Specifically, when the rolling chamber 3 rotates to the first position 70, the chamber through hole 30 begins to contact the limiting component 2, and the edge of the chamber through hole 30 engages with the limiting component 2, so that as the rolling chamber 3 continues to rotate in the first direction, such as clockwise, the limiting component 2 can gradually cover the chamber through hole 30. When the first filter 4 rotates to the bottom of the rolling chamber 3, the chamber through hole 30 also rotates to the bottom of the rolling chamber 3, and the cat litter 00 will flow onto the limiting component 2. Because the limiting component 2 and the rolling chamber 3 fit together tightly, the cat litter 00 cannot leak out of the rolling chamber 3 from the gap between the rolling chamber 3 and the limiting component 2.

[0244] When the chamber through-hole 30 rotates to the second position 71, as the rolling chamber 3 continues to rotate, the chamber through-hole 30 begins to separate from the limiting component 2, and all the chamber through-holes 30 gradually leak out. When the edge of the first filter screen 4 is flush with the second edge of the limiting component 2, the fecal clump 01 falls off the first filter screen 4 and out of the rolling chamber 3.

[0245] As the rolling chamber 3 continues to rotate, the chamber through-hole 30 can rotate to the top position of the rolling chamber 3, serving as a ventilation opening and a through-hole for adding cat litter 00. Alternatively, it can continue to rotate to the first position 70 or remain at the second position 71 as a pet entrance / exit for the cat to enter and exit the rolling chamber 3.

[0246] Furthermore, a dedicated pet entry / exit hole 32 can be provided at one end of the rolling chamber to cooperate with the through hole 30 of the chamber body to ensure air circulation inside the rolling chamber 3.

[0247] In this embodiment, by eliminating the chamber cover plate 5, the arc-shaped limiting component 2 serves as the cover plate for the chamber through hole 30 when the rolling chamber 3 rotates, thus preventing cat litter 00 from flowing to the outside of the rolling chamber 3 when it reaches the chamber through hole 30. This greatly increases the activity space for the pet inside the rolling chamber 3. Moreover, the structure is simple, and the automatic filtration and removal of cat litter 00 can be achieved simply by using an arc-shaped limiting component 2 that fits into the rolling chamber 3. Most importantly, the activity space for the pet inside the rolling chamber 3 is greatly improved.

Claims

1. A pet excrement filtration device, characterized in that, include: A support frame, wherein at least one limiting component is provided on the support frame; A rotatable container that can rotate on the support frame; The circumferential wall of the rolling chamber is provided with a chamber body through hole; Inside the rolling chamber, a first filter screen is also installed on the first side wall edge of the chamber body through hole; The bin body through-hole is provided with a bin body cover plate; When the rolling chamber rotates, the limiting component contacts or separates from the chamber cover to open or close the chamber through hole.

2. The apparatus according to claim 1, characterized in that: The limiting component is a limiting arc surface installed on the support frame; The compartment cover is hinged to the second side wall edge of the compartment through hole via a hinge mechanism. When the limiting component is not in contact with the compartment cover, the compartment through hole is in the open state. During the rotation of the rolling compartment, the limiting arc surface is in at least partial contact with the compartment cover. When the chamber cover plate rotates to the first position with the rolling chamber, the chamber cover plate and the limiting arc surface change from a non-contact state to a contact state to close the chamber through hole; When the chamber cover plate rotates to the second position with the rolling chamber, the chamber cover plate and the limiting arc surface change from a contact state to a non-contact state, thereby opening the chamber through hole.

3. The apparatus according to claim 2, characterized in that, The limiting arc surface is provided with several holes.

4. The apparatus according to claim 2, characterized in that, The limiting arc surface also includes an edge portion corresponding to the first position; The curvature of the edge portion is less than the overall curvature of the limiting arc.

5. The apparatus according to claim 2, characterized in that, The limiting arc surface is arc-shaped, ring-shaped, or spiral-shaped.

6. The apparatus according to claim 2, characterized in that, The compartment cover plate is provided with at least one first rolling component; The limiting arc surface is also provided with a first rolling groove; the first rolling groove is set to correspond to the rotation path of the first rolling component.

7. The apparatus according to claim 2, characterized in that, The hinge mechanism is a torsion spring; The first side of the hopper cover is hinged to the second side wall edge of the hopper through hole via the torsion spring.

8. The apparatus according to claim 2, characterized in that, The hinge mechanism is a rotating shaft; The rotating shaft is installed at the edge of the silo cover plate near the first side of the silo cover plate, and is hinged to the edge of the second side wall near the through hole of the silo. Using the rotating shaft as the axis of rotation, the hopper cover is divided into a first cover and a second cover, wherein the weight of the first cover is not less than the weight of the second cover.

9. The apparatus according to claim 1, characterized in that: The limiting component is an elastic limiting member installed on the support frame; The silo cover is slidably connected to the silo through hole via a sliding mechanism; The cover plate of the silo is equipped with a stress-bearing component; When the chamber cover plate rotates to the first position along the first direction with the rolling chamber, the elastic limiting member contacts the force-receiving member, pushing the chamber cover plate to slide along the sliding mechanism to close the chamber through hole; When the chamber cover plate rotates to the second position along the second direction with the rolling chamber, the elastic limiting member contacts the force-receiving member, pushing the chamber cover plate to slide along the sliding mechanism to open the chamber through hole; As the rolling chamber continues to rotate in the second direction, the force-bearing component deforms under the force of the elastic limiting component, and the elastic limiting component passes over the force-bearing component.

10. The apparatus according to claim 9, characterized in that, The force-bearing component is an elastic sheet or an inclined limiting rib.

11. The apparatus according to claim 9, characterized in that, The elastic limiting component includes a limiting post, a spring, and an elastic post; One end of the limiting post is fixed to the support frame; The spring is sleeved on the outside of the elastic post, and the elastic post passes through a hole on the limiting post and is connected to the other end of the limiting post, so that it can contact the cover plate of the chamber body during the rotation of the rolling chamber.

12. The apparatus according to claim 1, characterized in that: The limiting components are elastic limiting elements installed at different positions on the support frame; The cover plate of the silo is equipped with a stress-bearing component; The first side edge of the silo cover plate is hinged to the first side wall edge of the silo through hole via a hinge mechanism; The second side of the hopper cover is locked to the edge of the second side wall of the hopper through hole by a push-button latch; The push-button latch is installed on the second side of the compartment cover plate; The second side wall edge of the through hole in the compartment is provided with a locking groove corresponding to the push-button latch; When the chamber cover rotates to the first position with the rolling chamber, the first elastic limiting member applies a first pressure to the push-type latch through the force-bearing member on the chamber cover, so that the push-type latch locks with the locking groove to close the chamber through hole; When the chamber cover rotates to the second position with the rolling chamber, the second elastic limiting member applies pressure to the push-button latch through the force-bearing member on the chamber cover, causing the push-button latch to disengage from the locking groove and open the chamber through hole.

13. The apparatus according to claim 1, characterized in that: The limiting components are elastic limiting elements installed at different positions on the support frame; The silo cover is slidably connected to the silo through hole via a sliding mechanism; The cover plate of the silo is provided with at least one load-bearing component; When the chamber cover plate rotates to the first position along the first direction with the rolling chamber, the first elastic limiting member contacts the force-bearing member, pushing the chamber cover plate to slide along the sliding mechanism to close the chamber through hole; When the chamber cover plate rotates to the second position along the second direction with the rolling chamber, the second elastic limiting member contacts the force-bearing member, pushing the chamber cover plate to slide along the sliding mechanism to open the chamber through hole; As the rolling chamber continues to rotate in the second direction, the second elastic limiting member and the first elastic limiting member pass over the force-bearing member in sequence, so that the chamber cover rotates to the first position.

14. The apparatus according to claim 2, characterized in that, The support frame is provided with several slots; The limiting component is provided with a buckle for engaging with the slot.

15. The apparatus according to claim 1, characterized in that, The first filter screen is fixed or snapped to the first side wall edge of the through hole of the chamber.

16. The apparatus according to claim 1, characterized in that, The first filter screen is hinged to the first sidewall edge of the through hole in the chamber.

17. The apparatus according to claim 1, characterized in that, The first filter screen is also provided with a first drive mechanism at one end that is hinged to the first sidewall edge; The first drive mechanism is fixedly connected to the hinge shaft of the first filter screen and the first sidewall edge; When the first drive mechanism is working, it drives the first filter screen to rotate around the hinge axis.

18. The apparatus according to claim 17, characterized in that, The height of the first filter screen is not greater than the width of the through hole in the chamber body; The first filter screen is capable of rotating around the first edge of the sidewall to rotate the first filter screen to the outside of the rolling chamber through the chamber through-hole.

19. The apparatus according to claim 1, characterized in that, It also includes a second drive mechanism; A bearing is installed at the rear end of the rolling chamber; The second drive mechanism is connected to the bearing via a coupling, so that when the second drive mechanism rotates, it drives the rolling chamber to rotate via the coupling.

20. The apparatus according to claim 19, characterized in that, The outer wall of the rolling chamber is provided with a first groove; The support frame is equipped with rollers, which are placed in the first groove; When the rolling chamber is driven to rotate by the second drive mechanism, the rolling wheel rotates along the first groove.

21. The apparatus according to claim 1, characterized in that, One end of the rolling compartment is also provided with a pet entry / exit port.

22. The apparatus according to claim 1, characterized in that, A rotating handle is also provided at one end of the rolling chamber.

23. The apparatus according to claim 2, characterized in that, The compartment cover plate is provided with at least one first rolling component; The limiting arc surface is also provided with a first rolling groove; the first rolling groove is set to correspond to the rotation path of the first rolling component; The first rolling component is a ball bearing, a roller, or a shaft disposed on the cover plate of the compartment.

24. A pet excrement filtration device, characterized in that: Includes a support frame, and the support frame is provided with at least one limiting component; A rotatable container that can rotate on the support frame; The circumferential wall of the rolling chamber is provided with a chamber body through hole; A first filter screen is also installed on the first side wall edge of the through hole in the rolling chamber; When the rolling chamber rotates, the chamber body through hole may overlap or not overlap with the limiting component to open or close the chamber body through hole.

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