Automatic pet toilet
By incorporating a push-shovel device and a reset mechanism in the pet toilet, the problem of accidental tipping of the litter rake is solved, enabling efficient automatic cleaning and separation of pet litter and litter clumps.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG MINGFENG TECH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-10
AI Technical Summary
In existing automatic pet toilets, the scoop rake is easily accidentally triggered and flipped over during movement, resulting in incomplete cleaning of excrement.
Design an automatic pet litter box with a pusher device including a drive plate, a mounting plate, and a reset component. The scoop keeps abutting against the bottom wall of the litter trough and is kept relatively stationary by the reset component to ensure that the scoop is not accidentally touched during movement. Combined with the guide surface and slide rail structure, it can effectively separate pet litter from litter clumps.
It improves cleaning efficiency and effectiveness, ensuring that the rake always rests against the bottom wall of the litter trough, effectively separating pet litter from litter clumps, and achieving automated cleaning.
Smart Images
Figure CN224473822U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pet excrement cleaning technology, and in particular to an automatic pet toilet that scoops up excrement. Background Technology
[0002] Pet toilets, such as cat litter boxes, are devices used to store cat litter. Trained cats will come to the litter box when they need to relieve themselves and defecate on the litter. Urine and feces can clump together in the litter box, requiring timely cleaning to prevent odor. Therefore, some have designed self-cleaning litter boxes. Chinese patent CN218163900U discloses a self-cleaning litter box where the user doesn't need to manually scoop out the cat's waste. A drive mechanism in the litter box causes a rake to reciprocate, separating the waste and ensuring the litter box remains clean. However, when the rake reaches the edge of the litter box near the waste collection box, it needs to flip relative to the litter box to open the lid. During this scooping process, the rake can easily be accidentally flipped, resulting in incomplete cleaning. Utility Model Content
[0003] The present invention provides an automatic pet toilet to solve the technical problem that the cat poop rake is easily accidentally triggered and flipped over during the process of moving the cat poop rake to clean up the excrement.
[0004] This utility model discloses an automatic pet toilet that scoops up poop, comprising:
[0005] The main body includes a sand trough with a passage for pets to enter and exit. The inner wall of the sand trough is provided with a first slide rail and a second slide rail, both extending from a first end to a second end of the sand trough. The second end of the sand trough has a guide surface that connects to the bottom wall of the sand trough and extends upwards along a direction inclined to the depth of the sand trough, reaching the opening of the passage at the second end. The second slide rail includes a connected first horizontal section and a first inclined section. The first horizontal section is parallel to and spaced apart from the first slide rail, and the beginning and end of the first inclined section correspond to the beginning and end of the guide surface.
[0006] A pusher device is installed inside the sand trough and moves between the first and second ends of the sand trough. The pusher device includes a drive plate, a mounting plate, a rake, and a reset member. The drive plate is slidably mounted on the first slide rail via a first slider. The mounting plate is movably connected to the side of the drive plate facing the second end and is slidably mounted on the second slide rail via a second slider. The rake is fixedly connected to the mounting plate and extends toward the bottom wall of the sand trough. The reset member is disposed between the drive plate and the mounting plate to maintain the drive plate and the mounting plate in a relatively stationary state.
[0007] The drive plate pushes the mounting plate along the second slide rail to the opening position at the second end of the channel. The rake always abuts against the bottom wall of the sand trough and the guide surface. When the mounting plate moves along the first inclined section toward the second end, the mounting plate and the drive plate move up and down in a staggered manner, and the reset member accumulates reset force.
[0008] In one embodiment, the mounting plate and the drive plate are assembled together by a sliding connection structure. The sliding connection structure includes a guide groove and a guide protrusion that cooperates with the guide groove. One of the guide groove and the guide protrusion is located on the drive plate, and the other is located on the mounting plate.
[0009] Both the guide groove and the guide protrusion extend along the depth direction of the sand groove. As the rake moves along the guide surface toward the second end, the rake is vertically lifted, causing the mounting plate and the drive plate to slide and offset relative to each other along the depth direction of the sand groove.
[0010] In one embodiment, the number of sliding connection structures is two, and the number of guide grooves and guide protrusions is also two. One of the two guide grooves and the two guide protrusions are located on opposite sides of the edge of the drive plate, and the other is located on opposite sides of the edge of the mounting plate.
[0011] In one embodiment, the guide surface is an inclined surface, and the first inclined segment is parallel to the inclined surface.
[0012] In one embodiment, the number of the first slide rail and the number of the first slider are both two and are arranged symmetrically with respect to the main body; and / or, the number of the second slide rail and the number of the second slider are both two and are arranged symmetrically with respect to the main body.
[0013] In one embodiment, the second slide rail includes a second horizontal section connected to the side of the first inclined section away from the first horizontal section, the second horizontal section extending toward the second end, and when the mounting plate slides to the end of the second horizontal section, the rake moves synchronously to disengage from the guide surface and be outside the sand trough.
[0014] In one embodiment, the pet toilet includes a waste collection device located at the second end. The waste collection device includes a collection box and a cover. The collection box is installed at the second end of the litter box and adjacent to the end of the guide surface. The cover is rotatably connected to the collection box and spaced apart from the guide surface. The cover is flipped relative to the collection box to open or close the collection box.
[0015] In one embodiment, the rake includes a plurality of parallel and spaced rake spikes, the gap between any two adjacent rake spikes forming a sieve hole for separating pet litter from litter lumps; each rake spike includes a vertical section and a second inclined section connected at an obtuse angle, the vertical section being fixedly inserted into the mounting plate, and the second inclined section extending toward the second end and abutting against the bottom wall of the litter trough;
[0016] As the rake moves along the guide surface toward the waste collection device, the second inclined section can be squeezed and deformed by the guide surface to change the angle between the vertical section and the second inclined section. The second inclined section tilts upward and lifts the cover plate to open the collection box.
[0017] In one embodiment, the cover plate is provided with a lever, and when the cover plate is closed on the opening of the collection box, the lever extends toward the first end and protrudes from the guide surface; the rake includes a lifting member, which protrudes from the mounting plate on the side facing the waste collection device; as the rake moves along the guide surface toward the waste collection device, the lifting member moves synchronously to open the lever to open the collection box.
[0018] In one embodiment, the cover is rotatably connected to the side of the collection box opening away from the guide surface via a pivot; the collection device also includes a torsion spring, which is passed through the pivot, and the elastic force of the torsion spring drives the cover to automatically close to the opening of the collection box.
[0019] In one embodiment, the waste collection device is provided with a buffer gasket, which is attached to the inner sidewall edge or sidewall of the cover plate. When the cover plate closes to the opening of the collection box, the buffer gasket is located between the cover plate and the collection box.
[0020] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects:
[0021] This utility model provides an automatic pet toilet with a scooping mechanism, including a main body and a scooping device. The main body has a sand trough, and the scooping device is slidably installed in the sand trough and moves between a first end and a second end to separate clean pet litter from litter clumps containing pet excrement. A reset element is provided between the drive plate and the mounting plate in the scooping device, maintaining their relative stillness. As the drive plate pushes the mounting plate from the first end towards the second end, the scoop remains in contact with the bottom wall of the sand trough, and the reset element prevents accidental contact. Specifically, as the mounting plate moves along the first inclined section, the mounting plate and drive plate move vertically out of alignment, causing the scoop to tilt and lift. The reset element accumulates a reset force, which keeps the scoop in contact with the guide surface. Simultaneously, pet litter slides down the guide surface into the sand trough, and litter clumps are sifted out and pushed out of the trough by the scoop. Here, the user can install a collection device at the second end of the sand trough to collect the litter clumps pushed out by the scoop. On the other hand, when the drive plate pulls the mounting plate back to move in the opposite direction, the resetting force of the reset component can drive the mounting plate to reset to the initial connection state with the drive plate, and the rake shovel always remains against the bottom wall of the sand trough.
[0022] In summary, under the action of the resetting component, the rake in the pusher device always remains in contact with the bottom or guide surface of the litter trough to completely separate the litter clumps from the pet litter. Therefore, the pet toilet of this application has high cleaning efficiency and cleaning effect. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of an automatic pet toilet according to an embodiment of this application;
[0025] Figure 2 for Figure 1 Another view of the automatic litter box shown;
[0026] Figure 3 for Figure 2 A schematic diagram showing the pusher device in the pet toilet moving to the guide surface;
[0027] Figure 4 for Figure 2The diagram shows the lifting mechanism in a pet toilet when the collection box is opened.
[0028] Figure 5 for Figure 2 The diagram shows the exploded structure of the pusher device in the pet toilet.
[0029] Figure 6 for Figure 2 A magnified view of part A in the pet toilet shown;
[0030] Figure 7 for Figure 4 A magnified view of part B in the pet toilet shown;
[0031] Figure 8 for Figure 2 The diagram shows the exploded structure of the waste collection device in a pet toilet.
[0032] The annotations in the attached figures are explained as follows:
[0033] 1. Automatic pet toilet with scooping function;
[0034] 10. Main body; 11. Sand trough; 111. First end; 112. Second end; 12. Channel; 13. First slide rail; 14. Second slide rail; 141. First horizontal section; 142. First inclined section; 143. Second horizontal section; 15. Guide surface; 151. Inclined surface;
[0035] 20. Pusher device; 21. Drive plate; 22. Mounting plate; 23. Rake; 231. Rake nail; 2311. Vertical section; 2312. Second inclined section; 232. Screen hole; 233. Lifting component; 24. Resetting component; 25. First slider; 26. Second slider; 27. Sliding connection structure; 271. Guide groove; 272. Guide protrusion;
[0036] 30. Waste collection device; 31. Collection box; 32. Cover plate; 321. Pulley; 33. Rotating shaft; 34. Torsion spring; 35. Buffer washer. Detailed Implementation
[0037] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.
[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0040] Reference Figure 1-4 This application provides an automatic litter box 1, including a main body 10, a scooping device 20, and a waste collection device 30. The main body 10 has a litter trough 11 for holding pet litter (e.g., cat litter). The litter trough 11 is designed to provide a passage for pets to enter and exit, thus providing a space for pets to defecate. The scooping device 20 is installed inside the litter trough 11. The user can operate it with one button to move the scooping device 20 between the first end 111 and the second end 112 of the litter trough 11 to separate clean cat litter from litter clumps formed by pet excrement. This one-button operation includes, but is not limited to, pressing a button or remote terminal control. The waste collection device 30 is located at the second end 112 of the litter trough 11. The scooping device 20 pushes the separated litter clumps to the second end 112 and they fall into the waste collection device 30 for collection, thereby completing the automatic cleaning of the pet litter box 1. It should be understood that cleaning the pet litter box 1 is completed simply by separating the litter clumps containing excrement from the litter trough 11. The waste collection device 30 is for more convenient collection of litter clumps. In other embodiments, a trash can or cardboard box can be placed directly on the outside of the second end 112 of the sand trough 11 to replace the collection device 30, which can also serve the function of collecting sand. Therefore, in this application, the setting of the collection device 30 is not limited.
[0041] Continue to refer to Figure 1-4The inner wall of the sand trough 11 is provided with a first slide rail 13 and a second slide rail 14, both extending from the first end 111 of the sand trough 11 to the second end 112. The second end 112 of the sand trough 11 is provided with a guide surface 15, which is in contact with the bottom wall of the sand trough 11 and extends upward along the depth direction inclined to the sand trough 11, extending to the opening position of the channel at the second end 112. The second slide rail 14 includes a first horizontal section 141 and a first inclined section 142 connected together. The first horizontal section 141 is parallel to the first slide rail 13 and is spaced apart from it. The beginning and end ends of the first inclined section 142 correspond to the beginning and end ends of the guide surface 15.
[0042] Reference Figure 2 and Figure 5 The pusher device 20 includes a drive plate 21, a mounting plate 22, a rake 23, and a reset member 24. The drive plate 21 is slidably mounted on the first slide rail 13 via a first slider 25. The mounting plate 22 is movably connected to the side of the drive plate 21 facing the second end 112, and the mounting plate 22 is also slidably mounted on the second slide rail 14 via a second slider 26. The rake 23 is fixedly connected to the mounting plate 22 and extends along the bottom wall of the sand trough 11. The reset member 24 is disposed between the drive plate 21 and the mounting plate 22 to maintain stability. When the drive plate 21 and the mounting plate 22 are relatively stationary, the end of the rake 23 away from the mounting plate 22 abuts against the bottom wall of the sand trough 11. The reset member 24 is used to maintain the state of the rake 23 abutting against the bottom wall of the sand trough 11. It can be understood that even if the pet accidentally touches the rake 23 and leaves the bottom wall of the sand trough 11, the reset member 24 can drive the rake 23 to instantly reset and remain abutting against the bottom wall. Therefore, the reset member 24 plays the function of preventing accidental contact with the rake 23.
[0043] Combination Figure 2-4 The drive plate 21 pushes the mounting plate 22 along the second slide rail 14 to the opening position of the channel 12 at the second end 112. The rake 23 always abuts against the bottom wall of the sand trough 11 or the guide surface 15. When the mounting plate 22 moves along the first inclined section 142 toward the second end 112, the mounting plate 22 and the drive plate 21 move vertically out of alignment, and the reset member 24 accumulates reset force. When the drive plate 21 pulls the mounting plate 22 back from the second end 112 to the first end 111, the reset force of the reset member 24 can drive the mounting plate 22 to return to the initial connection state with the drive plate 21, and the rake 23 always abuts against the bottom wall of the sand trough 11. It is understood that without the reset member 24, the rake 23 may be blocked by sand or pet litter and unable to abut against the bottom wall of the sand trough 11.
[0044] This application provides an automatic pet toilet 1. Because a reset member 24 is provided between the drive plate 21 and the mounting plate 22 in the scooping device 20, the reset member 24 can maintain their relative static state. When the drive plate 21 pushes the mounting plate 22 from the first end 111 towards the second end 112, the rake 23 always remains abutted against the bottom wall of the litter trough 11. The reset member 24 prevents accidental contact with the rake 23. Specifically, when the mounting plate 22 moves along the first inclined section 142, the mounting plate 22 and the drive plate 21 move vertically out of alignment, causing the rake 23 to tilt and lift. The reset member 24 accumulates a reset force, which keeps the rake 23 abutting against the guide surface 15. Simultaneously, pet litter slides down the guide surface 15 into the litter trough 11, and litter clumps are sifted out by the rake 23 and pushed outside the litter trough 11. Here, the user can install a collection device (feces collection device 30) at the second end 112 of the litter trough 11 to collect the litter clumps pushed out by the rake 23. On the other hand, when the drive plate 21 pulls back the mounting plate 22 to move in the opposite direction, the resetting force of the reset member 24 can drive the mounting plate 22 to reset to the initial connection state with the drive plate 21, and the rake 23 always remains against the bottom wall of the sand trough 11.
[0045] In summary, under the action of the reset member 24, the rake 23 in the pusher device 20 always remains in contact with the bottom of the sand trough 11 or the guide surface 15, so as to completely separate the sand clumps from the pet litter. Therefore, the pet toilet 1 of this application has high cleaning efficiency and cleaning effect.
[0046] Optionally, in conjunction with reference Figure 5-7 In one embodiment, the mounting plate 22 and the drive plate 21 are assembled together via a sliding connection structure 27. The sliding connection structure 27 includes a guide groove 271 and a guide protrusion 272 that engages with the guide groove 271. Since they are in a mating assembly relationship, one of the guide groove 271 and the guide protrusion 272 is located on the drive plate 21, and the other is located on the mounting plate 22. Both the guide groove 271 and the guide protrusion 272 extend along the depth direction of the sand groove 11. During the movement of the rake 23 along the guide surface 15 towards the second end 112, the rake 23 is vertically lifted, causing the mounting plate 22 and the drive plate 21 to slide relative to each other along the depth direction of the sand groove 11. Here, the sliding connection structure 27 can further improve the assembly stability between the drive plate 21 and the mounting plate 22, and limit the sliding misalignment of the drive plate 21 and the mounting plate 22 in the same direction, preventing relative left-right movement or relative rotational offset. Of course, in other embodiments, in conjunction with... Figure 2 Alternatively, the sliding connection structure 27 can be omitted. The drive plate 21 and the mounting plate 22 are connected and relatively limited by the reset component 24. The parallel arrangement of the first horizontal section 141 in the first slide rail 13 and the second slide rail 14 can also limit the relative offset between the drive plate 21 and the mounting plate 22 to a certain extent.
[0047] Optionally, in conjunction with reference Figure 2 and Figure 5 In one embodiment, there are two sliding connection structures 27, and two guide grooves 271 and two guide protrusions 272. These are in a mating assembly relationship. Therefore, one of the two guide grooves 271 and the two guide protrusions 272 is located on opposite sides of the edge of the drive plate 21, and the other is located on opposite sides of the edge of the mounting plate 22, providing double-sided confinement to further improve the assembly stability between the drive plate 21 and the mounting plate 22. It should be understood that in other embodiments, the number of sliding connection structures 27 can also be one, with one guide groove 271 and the guide protrusion 272 located on the side of the drive plate 21 facing the mounting plate 22, and the other on the side of the mounting plate 22 facing the drive plate 21. In other embodiments, the number of sliding connection structures 27 can also be more than two. Therefore, in this application, the number of sliding connection structures 27 is not limited, nor is the location of the guide grooves 271 and guide protrusions 272; they simply need to be slidably assembled together.
[0048] Preferably, refer to Figure 2 In one embodiment, the guide surface 15 is an inclined surface 151, and the first inclined segment 142 is parallel to the inclined surface 151. This ensures that the height to which the rake 23 is raised is the same as the height to which the mounting plate 22 slides upward. The mounting plate 22 and the rake 23 always rise and fall synchronously relative to the drive plate 21, which improves the sliding stability of the entire pusher device 20 between the first end 111 and the second end 112. It is understood that in other embodiments, the guide surface 15 may also be an arc surface, or the first inclined segment 142 may not be parallel to the inclined surface 151. In this case, the mounting plate 22 and the rake 23 cannot rise and fall synchronously, and the rake 23 may need to undergo a certain deformation to maintain synchronous movement with the mounting plate 22.
[0049] Preferably, in conjunction with reference Figure 1 , Figure 2 and Figure 5In one embodiment, the number of first slide rails 13 and first sliders 25 are both two, symmetrically arranged relative to the main body 10, so that the drive plate 21 is slidably installed on both sides within the sand trough 11; the number of second slide rails 14 and second sliders 26 are both two, symmetrically arranged relative to the main body 10, so that the mounting plate 22 is slidably installed on both sides within the sand trough 11. The slidable installation of the drive plate 21 and mounting plate 22 on both sides greatly improves the sliding stability and smoothness of the reciprocating movement of the entire pusher device 20, thereby improving the cleaning efficiency and cleaning effect of the rake 23 on the sand trough 11. Of course, in other embodiments, the number of first slide rails 13 and first sliders 25 can be set as one set, so that the drive plate 21 is slidably installed on one side; or, the number of second slide rails 14 and second sliders 26 can be set as one set, so that the mounting plate 22 is slidably installed on one side, which can also realize the movement of the pusher device 20 between the first end 111 and the second end 112. Optionally, when both the drive plate 21 and the mounting plate 22 are slidably mounted on one side, the first slide rail 13 and the second slide rail 14 can be located on the same side of the sand trough 11 or on opposite sides of the sand trough 11.
[0050] Preferably, refer to Figure 2 In one embodiment, the second slide rail 14 includes a second horizontal section 143, which connects to the side of the first inclined section 142 away from the first horizontal section 141. The second horizontal section 143 extends toward the second end 112. When the mounting plate 22 slides to the end of the second horizontal section 143, the rake shovel 23 moves synchronously to disengage from the guide surface 15 and is located outside the sand trough 11. No additional sand blocks remain at the opening edge of the sand trough 11 at the second end 112, allowing the sand blocks to be completely pushed out of the sand trough 11 by the rake shovel 23 and fall into the sand block collection device (e.g., the waste collection device 30), thereby further improving the cleaning efficiency of the rake shovel 23 in cleaning sand blocks in pet litter. Of course, in other embodiments, the second horizontal section 143 is not required, and the rake shovel 23 can clean the sand blocks in the sand trough 11 by moving back and forth multiple times.
[0051] Preferably, in conjunction with reference Figure 3 and Figure 8 In one embodiment, the waste collection device 30 includes a collection box 31 and a cover plate 32. The collection box 31 is installed at the second end 112 of the litter trough 11 and adjacent to the end of the guide surface 15. The cover plate 32 is rotatably connected to the collection box 31 and spaced apart from the guide surface 15. The cover plate 32 is flipped relative to the collection box 31 to open or close the collection box 31. When the collection box 31 is opened, the opening of the collection box 31 is located at the end of the guide surface 15, and litter is separated from the pet litter by the rake 23 and pushed into the collection box 31. Of course, in other embodiments, the waste collection device 30 may not be provided; or the waste collection device 30 may not have a cover plate 32.
[0052] Here, the cover 32 of the waste collection device 30 is set to open automatically, with the following structure:
[0053] Optionally, in conjunction with reference Figure 2 and Figure 5 In one embodiment, the rake 23 includes multiple parallel and spaced rake spikes 231. The gap between any two adjacent rake spikes 231 forms a sieve hole 232, which is used to separate pet litter from litter lumps. Each rake spike 231 includes a vertical section 2311 and a second inclined section 2312 connected at an obtuse angle. The vertical section 2311 is fixedly inserted into the mounting plate 22, and the second inclined section 2312 extends toward the second end 112 and abuts against the bottom wall of the litter trough 11. As the rake 23 moves along the guide surface 15 toward the waste collection device 30, the second inclined section 2312 can be deformed by the guide surface 15, changing the angle between the vertical section 2311 and the second inclined section 2312. The second inclined section 2312 tilts upward to open the cover plate 32, thereby opening the collection box 31 (not shown in the figure). In this embodiment, the collection box 31 is automatically opened by setting the second inclined section 2312 on the rake spikes 231.
[0054] Optionally, in conjunction with reference Figure 3 , Figure 4 and Figure 8 In one embodiment, the cover plate 32 is provided with a lever 321. When the cover plate 32 closes to the opening of the collection box 31, the lever 321 extends toward the first end 111 and protrudes from the guide surface 15. The rake shovel 23 includes a lifting member 233, which protrudes from the side of the mounting plate 22 toward the collection device 30. As the rake shovel 23 moves along the guide surface 15 toward the collection device 30, the lifting member 233 moves synchronously to open the lever 321. Figure 4 As shown in the diagram, the cover plate 32 is opened to open the collection box 31. Here, the shape and number of the lifting member 233 and the lever 321 are not limited. In this embodiment, the number of lifting members 233 and levers 321 is the same, and there are two of each. They are arranged to support each other approximately opposite the main body 10. In this embodiment, the automatic collection box 31 is opened by the cooperation of the lifting member 233 and the lever 321.
[0055] Preferably, refer to Figure 4 and Figure 8 In one embodiment, the cover 32 is rotatably connected to the side of the collection box 31 away from the guide surface 15 via a pivot 33. The waste collection device 30 includes a torsion spring 34, which is inserted through the pivot. The elastic force of the torsion spring 34 can drive the cover 32 to automatically close to the opening of the collection box 31. Of course, in other embodiments, the pivot 33 and torsion spring 34 are not required. The cover 32 can be rotatably connected to the opening of the collection box 31 via other rotating structures. In this case, the cover 32 needs to be closed with the aid of external force.
[0056] Preferably, refer to Figure 8 In one embodiment, the waste collection device 30 is provided with a buffer washer 35, which is attached to the inner edge or peripheral wall of the cover plate 32. When the cover plate 32 is closed over the opening of the collection box 31, the buffer washer 35 is located between the cover plate 32 and the collection box 31. During the repeated opening and closing of the cover plate 32 relative to the collection box 31, the buffer washer 35 provides a buffering protection function for both, which can not only buffer the collision contact force between the two, but also reduce the collision noise. Of course, in other embodiments, the buffer washer 35 may not be provided.
[0057] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.
Claims
1. An automatic pet toilet, characterized in that, include: The main body includes a sand trough with a passage for pets to enter and exit. The inner wall of the sand trough is provided with a first slide rail and a second slide rail, both extending from a first end to a second end of the sand trough. The second end of the sand trough has a guide surface that connects to the bottom wall of the sand trough and extends upwards along a direction inclined to the depth of the sand trough, reaching the opening of the passage at the second end. The second slide rail includes a connected first horizontal section and a first inclined section. The first horizontal section is parallel to and spaced apart from the first slide rail, and the beginning and end of the first inclined section correspond to the beginning and end of the guide surface. A pusher device is installed inside the sand trough and moves between the first and second ends of the sand trough. The pusher device includes a drive plate, a mounting plate, a rake, and a reset member. The drive plate is slidably mounted on the first slide rail via a first slider. The mounting plate is movably connected to the side of the drive plate facing the second end and is slidably mounted on the second slide rail via a second slider. The rake is fixedly connected to the mounting plate and extends toward the bottom wall of the sand trough. The reset member is disposed between the drive plate and the mounting plate to maintain the drive plate and the mounting plate in a relatively stationary state. The drive plate pushes the mounting plate along the second slide rail to the opening position at the second end of the channel. The rake always abuts against the bottom wall of the sand trough and the guide surface. When the mounting plate moves along the first inclined section toward the second end, the mounting plate and the drive plate move up and down in a staggered manner, and the reset member accumulates reset force.
2. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The mounting plate and the drive plate are assembled together by a sliding connection structure. The sliding connection structure includes a guide groove and a guide protrusion that cooperates with the guide groove. One of the guide groove and the guide protrusion is located on the drive plate, and the other is located on the mounting plate. Both the guide groove and the guide protrusion extend along the depth direction of the sand groove. As the rake moves along the guide surface toward the second end, the rake is vertically lifted, causing the mounting plate and the drive plate to slide and offset relative to each other along the depth direction of the sand groove.
3. The automatic litter-scooping pet toilet according to claim 2, characterized in that, The sliding connection structure has two components, and the guide groove and the guide protrusion each have two components. One of the two guide grooves and the two guide protrusions are located on opposite sides of the edge of the drive plate, and the other is located on opposite sides of the edge of the mounting plate.
4. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The guiding surface is an inclined surface, and the first inclined segment is parallel to the inclined surface.
5. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The number of the first slide rail and the number of the first slider are both two and they are arranged symmetrically with respect to the main body; and / or, the number of the second slide rail and the number of the second slider are both two and they are arranged symmetrically with respect to the main body.
6. The automatic litter-scooping pet toilet according to claim 1, characterized in that, The second slide rail includes a second horizontal section, which connects to the side of the first inclined section away from the first horizontal section. The second horizontal section extends toward the second end. When the mounting plate slides to the end of the second horizontal section, the rake moves synchronously to disengage from the guide surface and is located outside the sand trough.
7. The automatic litter-scooping pet toilet according to any one of claims 1-6, characterized in that, The pet toilet includes a waste collection device located at the second end. The waste collection device includes a collection box and a cover. The collection box is installed at the second end of the litter box and is adjacent to the end of the guide surface. The cover is rotatably connected to the collection box and spaced apart from the guide surface. The cover is flipped relative to the collection box to open or close the collection box.
8. The automatic litter-scooping pet toilet according to claim 7, characterized in that, The rake includes multiple parallel and spaced rake spikes, with the gap between any two adjacent rake spikes forming a sieve hole for separating pet litter from litter lumps; each rake spike includes a vertical section and a second inclined section connected at an obtuse angle, the vertical section being fixedly inserted into the mounting plate, and the second inclined section extending toward the second end and abutting against the bottom wall of the litter trough; As the rake moves along the guide surface toward the waste collection device, the second inclined section can be squeezed and deformed by the guide surface to change the angle between the vertical section and the second inclined section. The second inclined section tilts upward and lifts the cover plate to open the collection box.
9. The automatic litter-scooping pet toilet according to claim 7, characterized in that, The cover plate is provided with a lever. When the cover plate is closed on the opening of the collection box, the lever extends towards the first end and protrudes from the guide surface. The rake includes a lifting member, which protrudes from the mounting plate on the side facing the waste collection device. As the rake moves along the guide surface toward the waste collection device, the lifting member moves synchronously to open the lever to open the collection box.
10. The automatic litter-scooping pet toilet according to claim 7, characterized in that, The cover plate is rotatably connected to the side of the collection box opening away from the guide surface via a pivot; the waste collection device also includes a torsion spring, which is passed through the pivot, and the elastic force of the torsion spring drives the cover plate to automatically close to the opening of the collection box. And / or, the waste collection device is provided with a buffer gasket, which is attached to the inner side wall edge or side peripheral wall of the cover plate. When the cover plate is closed on the opening of the collection box, the buffer gasket is located between the cover plate and the collection box.