Cat litter box with screening structure

Abstract

This utility model relates to the field of cat litter box technology and discloses a cat litter box with a screening structure, including a base, a screening mechanism on the top of the base, a conveying mechanism on the rear side of the screening mechanism, a partition fixedly connected to the inner side of the base, and a cat litter box body fixedly connected to the top of the base. The cat litter box body is rotatably connected to the front side of the cat litter box body and to the right side of the cat litter box body, and a limiting ring is fixedly connected to the top of the inner side of the cat litter box body. In use, the screening mechanism first closes the baffle and positions it at the bottom of the limiting ring. At this time, cat litter can be placed on the top of the baffle, and the cat can defecate inside the limiting ring. After defecation, the knob can be turned to move the bidirectional threaded rod to move the moving frame and the baffle, opening the baffle, and the excrement will fall into the screening box along with the cat litter.

Description

Technical Field

[0001] This utility model relates to the field of cat litter box technology, specifically a cat litter box with a screening structure. Background Technology

[0002] With the increasing popularity of pet ownership, cat litter boxes have become an essential tool for cats to excrete waste daily, and their frequency of use and importance have become more and more prominent. Traditional cat litter boxes mainly rely on manual cleaning of cat litter on a regular basis. All the cat litter needs to be emptied and then manually picked out the clumps or contaminated cat litter, which is not only time-consuming and laborious, but also easily leads to waste of cat litter.

[0003] To address these issues, litter boxes with screening structures have gradually emerged on the market. These screens separate clumpy litter from clean litter, enabling the recycling of litter. However, existing screening structures cannot rotate, affecting the screening effect and causing problems such as easy clogging of the screen holes and low screening efficiency. Furthermore, some screening devices are complex to operate, resulting in a poor user experience.

[0004] According to the description of a cat litter box published on the patent website (authorization announcement number: CN218353916U), the cat litter box includes "a bowl body, a folded edge, and a cover body" for use.

[0005] Regarding the above description, the applicant believes the following issues exist:

[0006] This litter box uses a basin, rim, and lid for operation. However, when a cat defecates in the litter box, the excrement mixes with the litter. Separating the litter requires manual cleaning, which involves emptying the litter and manually picking out clumps, contaminated litter, and excrement. This process is time-consuming, laborious, and wasteful. Therefore, this litter box needs improvement. Utility Model Content

[0007] The purpose of this invention is to provide a cat litter box with a screening structure to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a cat litter box with a screening structure, including a base, a screening mechanism on the top of the base, a conveying mechanism on the rear side of the screening mechanism, and a partition fixedly connected to the inner side of the base;

[0009] The screening mechanism includes a litter box body, which is fixedly connected to the top of the base. A first sealing door is rotatably connected to the front of the litter box body, and a second sealing door is rotatably connected to the right side of the litter box body. A limit ring is fixedly connected to the top of the inner side of the litter box body. A fixed frame is fixedly connected to the rear side of the litter box body. A bidirectional threaded rod is rotatably connected inside the fixed frame. A knob is fixedly connected to the left side of the bidirectional threaded rod. A movable frame is threadedly connected to the outer side of the bidirectional threaded rod. A baffle is fixedly connected to the inner side of the movable frame. The baffle is located at the bottom of the limit ring. A screening frame is slidably connected inside the litter box body. The screening frame is located at the bottom of the baffle. A connecting shaft is inserted into the bottom of the screening frame. A rotating rod is slidably connected inside the connecting shaft. A limit pin is threadedly connected inside the rotating rod. A first servo motor is fixedly connected to the bottom of the rotating rod. A cylinder is fixedly connected to the left side of the litter box body. A push plate is fixedly connected to the right side of the cylinder. The push plate is located to the left of the screening frame.

[0010] Preferably, the baffle is slidably connected inside the litter box body, and the top of the baffle is in contact with the bottom of the limiting ring, so that the cat can defecate on the baffle under the action of the baffle and place the cat litter on the top of the baffle.

[0011] Preferably, the top of the screening frame is in contact with the bottom of the baffle, and the first servo motor is fixedly connected to the bottom of the baffle, so as to facilitate the screening of cat excrement and cat litter under the action of the screening frame.

[0012] Preferably, the connecting shaft and the rotating rod are rotatably connected to the litter box body and the partition, respectively, and the right side of the push plate is in contact with the left side of the filter frame, so as to facilitate the rotation of the filter frame under the action of the connecting shaft and the rotating rod.

[0013] Preferably, the limiting pin passes through the inside of the connecting shaft, and the connecting shaft and the rotating rod are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The limiting pin is threaded into the fixing groove, which facilitates the stability between the connecting shaft and the rotating rod under the action of the limiting pin.

[0014] Preferably, the conveying mechanism includes a conveying pipe, which is fixedly connected to the bottom of the litter box body. A fixing frame is fixedly connected to the inner side of the conveying pipe, and the fixing frame is fixedly connected to the rear side of the litter box body. A second servo motor is fixedly connected to the top of the conveying pipe, and a rotating shaft is fixedly connected to the bottom of the second servo motor. An auger is fixedly connected to the periphery of the rotating shaft, and a connecting pipe is fixedly connected to the inner side of the conveying pipe.

[0015] Preferably, the connecting pipe is located at the top of the baffle, and the rotating shaft is rotatably connected inside the conveying pipe, so that the auger can be driven to work under the action of the rotating shaft to convey the screened cat litter back to the top of the baffle.

[0016] Compared with the prior art, this utility model provides a cat litter box with a screening structure, which has the following beneficial effects:

[0017] 1. This litter box with a screening structure, through its screening mechanism, first closes the baffle and positions it at the bottom of the limiting ring. Cat litter can then be placed on top of the baffle, allowing the cat to defecate inside the limiting ring. After defecation, rotating the knob moves the bidirectional threaded rod, causing the moving frame and baffle to open. Excrement falls into the screening frame along with the cat litter. The first servo motor then drives the rotating rod, which is connected to the connecting shaft via a limiting pin. The connecting shaft is inserted into the bottom of the screening frame, causing the screening frame to rotate. Under the action of the screening frame, cat litter falls through the frame to the bottom of the litter box body, while excrement remains inside. When cleaning is needed, the second sealing door is opened, the limiting pin is removed, and the connecting shaft moves downwards around the rotating rod, removing it from the bottom of the screening frame. This disconnects the connection to the screening frame. A cylinder then moves the push plate to the right, pushing the screening frame out for cleaning.

[0018] 2. This litter box with a screening structure uses a conveying mechanism to screen cat excrement through a screening frame. After the screened litter falls to the bottom of the litter box, a second servo motor drives a rotating shaft and an auger to rotate, conveying the clean litter back to the top of the baffle through a conveying pipe and connecting pipe. This achieves litter recycling, effectively reducing litter waste and lowering operating costs. Opening the first sealing door allows the litter remaining at the bottom of the litter box to be cleaned and placed back on the top of the baffle for recycling, preventing waste. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0020] Fig. 1 This is a three-dimensional structural diagram of the present invention;

[0021] Fig. 2 This is a schematic diagram of the screening mechanism;

[0022] Fig. 3 A schematic diagram of the rear structure of the cat litter box;

[0023] Fig. 4 A cross-sectional structural diagram of the cat litter box body;

[0024] Fig. 5 This is a schematic diagram of the internal structure of the cat litter box.

[0025] Fig. 6 This is a schematic diagram of the conveying mechanism.

[0026] In the diagram: 1. Base; 2. Screening mechanism; 3. Conveying mechanism; 4. Partition; 21. Litter box body; 22. First sealing door; 23. Limiting ring; 24. Baffle; 25. Second sealing door; 26. Fixing frame; 27. Bidirectional threaded rod; 28. Moving frame; 29. ​​Knob; 291. Cylinder; 292. Screening frame; 293. Connecting shaft; 294. Push plate; 295. Rotating rod; 296. Limiting pin; 297. First servo motor; 31. Conveying pipe; 32. Rotating shaft; 33. Screwdriver; 34. Second servo motor; 35. Connecting pipe; 36. Fixing frame. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] This utility model provides the following technical solution:

[0030] Example 1

[0031] Please see Figs. 1-6 This utility model provides a technical solution: a cat litter box with a screening structure, including a base 1, a screening mechanism 2 is provided on the top of the base 1, a conveying mechanism 3 is provided on the rear side of the screening mechanism 2, and a partition 4 is fixedly connected to the inner side of the base 1.

[0032] The screening mechanism 2 includes a litter box body 21, which is fixedly connected to the top of the base 1. A first sealing door 22 is rotatably connected to the front of the litter box body 21, and a second sealing door 25 is rotatably connected to the right side of the litter box body 21. A limit ring 23 is fixedly connected to the top inner side of the litter box body 21. A fixed frame 26 is fixedly connected to the rear side of the litter box body 21. A bidirectional threaded rod 27 is rotatably connected inside the fixed frame 26. A knob 29 is fixedly connected to the left side of the bidirectional threaded rod 27. A movable frame 28 is threadedly connected to the outer side of the bidirectional threaded rod 27. A stop is fixedly connected to the inner side of the movable frame 28. Plate 24 and baffle 24 are located at the bottom of limiting ring 23. A filter frame 292 is slidably connected inside the litter box body 21. The filter frame 292 is located at the bottom of baffle 24. A connecting shaft 293 is inserted into the bottom of the filter frame 292. A rotating rod 295 is slidably connected inside the connecting shaft 293. A limiting pin 296 is threaded inside the rotating rod 295. A first servo motor 297 is fixedly connected to the bottom of the rotating rod 295. A cylinder 291 is fixedly connected to the left side of the litter box body 21. A push plate 294 is fixedly connected to the right side of the cylinder 291. The push plate 294 is located to the left of the filter frame 292.

[0033] The baffle 24 is slidably connected inside the litter box body 21. The top of the baffle 24 is in contact with the bottom of the limiting ring 23, which facilitates the cat to defecate on the baffle 24 under the action of the baffle 24 and places the cat litter on the top of the baffle 24. The top of the filter frame 292 is in contact with the bottom of the baffle 24. The first servo motor 297 is fixedly connected to the bottom of the partition 4, which facilitates the filtering of cat excrement and cat litter under the action of the filter frame 292. The connecting shaft 293 and the rotating rod 295 are rotatably connected inside the litter box body 21 and the partition 4, respectively. The right side of the push plate 294 is in contact with the left side of the filter frame 292, which facilitates the rotation of the filter frame 292 under the action of the connecting shaft 293 and the rotating rod 295.

[0034] The limiting pin 296 passes through the inside of the connecting shaft 293. The connecting shaft 293 and the rotating rod 295 are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The limiting pin 296 is threaded into the fixing groove, which facilitates the stability between the connecting shaft 293 and the rotating rod 295 under the action of the limiting pin 296.

[0035] Example 2

[0036] Please see Figs. 1-6Furthermore, based on Embodiment 1, the conveying mechanism 3 further includes a conveying pipe 31, which is fixedly connected to the bottom of the litter box body 21. A fixing frame 36 is fixedly connected to the inner side of the conveying pipe 31, and the fixing frame 36 is fixedly connected to the rear side of the litter box body 21. A second servo motor 34 is fixedly connected to the top of the conveying pipe 31, and a rotating shaft 32 is fixedly connected to the bottom of the second servo motor 34. An auger 33 is fixedly connected to the outer periphery of the rotating shaft 32. A connecting pipe 35 is fixedly connected to the inner side of the conveying pipe 31, and the connecting pipe 35 is located at the top of the baffle 24. The rotating shaft 32 is rotatably connected to the inside of the conveying pipe 31, so that the auger 33 can be driven to work under the action of the rotating shaft 32, and the screened cat litter can be conveyed back to the top of the baffle 24.

[0037] In actual operation, when this device is used, the baffle 24 is first closed and located at the bottom of the limiting ring 23. At this time, cat litter can be placed on the top of the baffle 24, and the cat can defecate inside the limiting ring 23. After defecation, the knob 29 can be turned to move the bidirectional threaded rod 27 to move the moving frame 28 and the baffle 24, so that the baffle 24 opens. The excrement will fall into the screening frame 292 along with the cat litter. At this time, the first servo motor 297 can drive the rotating rod 295 to rotate. The rotating rod 295 is connected to the connecting shaft 293 through the limiting pin 296, and the connecting shaft 293 is inserted into the bottom of the screening frame 292, which can drive the screening frame 292 to rotate. Under the action of the screening frame 292, the cat litter falls through the screening frame 292 into the bottom of the cat litter box body 21. The excrement and clumps of cat litter can continue to be in the screening frame 292, thus realizing the screening work.

[0038] When it is necessary to clean up the excrement, open the second sealing door 25, remove the limit pin 296, and move the connecting shaft 293 downward around the rotating rod 295. Take it out from the bottom of the filter frame 292 to disconnect it from the filter frame 292. Drive the push plate 294 to the right through the cylinder 291 to push the filter frame 292 out to clean up the excrement. After cleaning, the filter frame 292 can be slidably connected to the inside of the litter box body 21 so that the left side of the filter frame 292 and the right side of the push plate 294 are in contact with each other.

[0039] After the cat's excrement is filtered by the filtering box 292, the filtered cat litter will fall to the bottom of the litter box body 21. The second servo motor 34 drives the rotating shaft 32 and the auger 33 to rotate, and the filtered clean cat litter is transported back to the top of the baffle 24 through the conveying pipe 31 and the connecting pipe 35. The baffle 24 needs to be closed to realize the recycling of cat litter, effectively reduce cat litter waste and reduce usage costs. Opening the first sealing door 22 can clean the cat litter remaining at the bottom of the litter box body 21 and put it back on the top of the baffle 24 for recycling, avoiding waste.

[0040] The litter box body 21 in this case is designed to be low in height, making it suitable for daily use by cats.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A litter box with a screening structure, comprising a base (1), characterized in that: The base (1) is provided with a screening mechanism (2) at the top, and a conveying mechanism (3) is provided at the rear side of the screening mechanism (2). A partition (4) is fixedly connected to the inner side of the base (1). The screening mechanism (2) includes a litter box body (21), which is fixedly connected to the top of the base (1). A first sealing door (22) is rotatably connected to the front side of the litter box body (21), and a second sealing door (25) is rotatably connected to the right side of the litter box body (21). A limiting ring (23) is fixedly connected to the top of the inner side of the litter box body (21), and a fixed frame (26) is fixedly connected to the rear side of the litter box body (21). A bidirectional threaded rod (27) is rotatably connected inside the fixed frame (26). A knob (29) is fixedly connected to the left side of the bidirectional threaded rod (27). A movable frame (28) is threadedly connected to the outer side of the bidirectional threaded rod (27). A baffle (24) is fixedly connected to the inner side of the movable frame (28). The baffle (24) is located at the bottom of the limiting ring (23). A filter frame (292) is slidably connected inside the litter box body (21). The filter frame (292) is located at the bottom of the baffle (24). A connecting shaft (293) is inserted into the bottom of the filter frame (292). A rotating rod (295) is slidably connected inside the connecting shaft (293). A limit pin (296) is threaded inside the rotating rod (295). A first servo motor (297) is fixedly connected to the bottom of the rotating rod (295). A cylinder (291) is fixedly connected to the left side of the litter box body (21). A push plate (294) is fixedly connected to the right side of the cylinder (291). The push plate (294) is located to the left of the filter frame (292).

2. A litter box with a screening structure according to claim 1, characterized in that: The baffle (24) is slidably connected to the inside of the litter box body (21), and the top of the baffle (24) is in contact with the bottom of the limiting ring (23).

3. A litter box with a screening structure according to claim 1, characterized in that: The top of the filter box (292) is in contact with the bottom of the baffle (24), and the first servo motor (297) is fixedly connected to the bottom of the partition (4).

4. A cat litter box with a screening structure according to claim 1, characterized in that: The connecting shaft (293) and the rotating rod (295) are rotatably connected to the inside of the litter box body (21) and the partition (4), respectively, and the right side of the push plate (294) is in contact with the left side of the filter box (292).

5. A litter box with a screening structure according to claim 1, characterized in that: The limiting pin (296) passes through the inside of the connecting shaft (293). The connecting shaft (293) and the rotating rod (295) are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The limiting pin (296) is threaded into the fixing groove.

6. A litter box with a screening structure according to claim 1, characterized in that: The conveying mechanism (3) includes a conveying pipe (31), which is fixedly connected to the bottom of the litter box body (21). A fixing frame (36) is fixedly connected to the inner side of the conveying pipe (31). The fixing frame (36) is fixedly connected to the rear side of the litter box body (21). A second servo motor (34) is fixedly connected to the top of the conveying pipe (31). A rotating shaft (32) is fixedly connected to the bottom of the second servo motor (34). An auger (33) is fixedly connected to the outer periphery of the rotating shaft (32). A connecting pipe (35) is fixedly connected to the inner side of the conveying pipe (31).

7. A litter box with a screening structure according to claim 6, characterized in that: The connecting pipe (35) is located on top of the baffle (24), and the rotating shaft (32) is rotatably connected to the inside of the conveying pipe (31).

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