Cat litter box waste bin cover synchronous opening and closing mechanism

Abstract

The utility model discloses a cat litter basin convenient store cover synchronous opening and closing mechanism, including base and setting in the movable storehouse of base top and with base rotation connection, be provided with on the movable storehouse convenient store, convenient store cover is provided with on the convenient store mouth of going into, the convenient store cover is hinged and is provided with the convenient store cover between the base synchronous opening and closing mechanism, through synchronous opening and closing mechanism in the rotation process of movable storehouse can synchronous change convenient store cover and the opening and closing state of convenient store mouth, the utility model, discard existing electric drive mode, and the connection and positional relationship design of structure member are combined and draw linkage type mechanical structure, and through mechanical structure in the rotation process of movable storehouse linkage drive convenient store cover and realize synchronous opening and closing, not only save manufacturing cost, and operation stable and not easy to make a mistake, be suitable for applying in automation equipment.

Description

Technical Field

[0001] This utility model relates to the field of pet supplies technology, specifically a synchronous opening and closing mechanism for a cat litter box lid. Background Technology

[0002] Litter boxes are used to collect the excrement of cats and other pets. When the litter in the litter box becomes contaminated with excrement, users need to clean the used litter to maintain its cleanliness. Litter cleaning involves separating clean litter from contaminated litter, recycling the clean litter for reuse, or replacing all the used litter, which requires removing the used litter from the litter box. Litter cleaning is labor-intensive, and litter mixed with cat excrement emits an unpleasant odor, making manual litter cleaning a poor user experience. Therefore, most litter boxes have been designed to be automated, effectively reducing the hassle of manual litter cleaning by assisting users in cleaning the litter box.

[0003] In automated litter boxes, the waste collection chamber is an indispensable component. However, when the waste collection chamber is integrated with the litter box itself, odor leakage can occur. In this case, it is necessary to install a waste collection chamber cover at the waste inlet to seal the waste collection space as much as possible to prevent odor leakage. However, it is impractical to manually open the cover during automated operation of a litter box with a waste collection chamber cover. This requires the cover to open and close automatically at a designated location during automated operation to facilitate the collection of contaminated litter. Currently, solutions for automatic opening and closing of the waste collection chamber cover usually use electric drive mechanisms and software algorithms for control. This solution is not only costly but also often suffers from incoordination. In severe cases, it can even lead to untimely accidental opening or closing, posing a catastrophic risk to automated operation. Utility Model Content

[0004] The purpose of this utility model is to provide a synchronous opening and closing mechanism for a cat litter box lid. It abandons the existing electric drive method and designs a linkage mechanical structure by combining the connection and positional relationship between structural components. The mechanical structure drives the lid to open and close synchronously during the rotation of the movable chamber. This not only saves manufacturing costs, but also ensures stable operation and reduces the likelihood of errors, effectively solving the defects of the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a synchronous opening and closing mechanism for a cat litter box lid, comprising a base and a movable chamber disposed above the base and rotatably connected to the base. The base has upwardly extending support brackets on opposite sides, each support bracket having a bearing seat. The bearing seats on the two opposite support brackets are coaxially arranged. The movable chamber has a rotating shaft coaxially arranged on opposite sides, the rotating shaft being rotatably mounted on the bearing seat. The rotating shaft is driven by a driving mechanism, which drives the rotating shaft to rotate, thereby driving the movable chamber to rotate around the rotating shaft as its central axis. The movable chamber has a feces collection chamber, which includes a feces inlet. A feces lid is hinged to the feces inlet. A synchronous opening and closing mechanism is provided between the feces lid and the base, allowing the opening and closing states of the feces lid and the feces inlet to be changed synchronously during the rotation of the movable chamber.

[0006] Preferably, the synchronous opening and closing mechanism includes a fixed rod and a movable rod disposed on the toilet compartment cover, and a first guide rail and a second guide rail disposed on the support bracket. The fixed rod and the movable rod are both arranged parallel to the length direction of the toilet compartment cover. The movable rod is disposed on the side of the fixed rod facing the rotating shaft. The first guide rail and the second guide rail are both arc-shaped guide rails. The first guide rail is centered on the rotating shaft, and the second guide rail is centered on the fixed rod. The planes on which the first guide rail and the second guide rail are located are parallel to each other. The first guide rail includes a retractable area and an unfoldable area. The retractable area and the unfoldable area abut against each other at opposite ends. The distance R1 between the rail wall of the retractable area away from the rotating shaft and the central axis of the rotating shaft is less than the distance R2 between the rail wall of the unfoldable area away from the rotating shaft and the central axis of the rotating shaft. The second guide rail is disposed between the fixed rod and the rotating shaft, and the movable rod is slidably inserted into the second guide rail.

[0007] Preferably, a deformation positioning component is provided inside the second guide rail. The deformation positioning component is a silicone sheet. The circumferential edge of the deformation positioning component is fixedly connected to the circumferential wall of the second guide rail. A fence-shaped crack is opened in the middle of the deformation positioning component. The movable rod is provided through the fence-shaped crack and is dampedly connected to the deformation positioning component during the sliding process relative to the second guide rail.

[0008] Preferably, the movable chamber is provided with a sand chamber inside, the sand chamber opening is opened on the circumferential wall of the movable chamber, the sand chamber is provided with a sand filter plate, the sand filter plate divides the sand chamber into an outer sand chamber and an inner sand chamber in the direction of rotation of the sand chamber, the outer sand chamber is located near the edge of the sand chamber opening, the feces collection chamber is located above the inner sand chamber, the feces inlet is located on the inner wall of the sand chamber and near the edge of the sand chamber opening facing the outer sand chamber, the sand filter plate is located between the outer sand chamber and the feces inlet, and the feces chamber cover is hinged to the edge of the feces inlet near the sand chamber opening.

[0009] Preferably, a sand-laying pad is detachably laid on the bottom surface of the outer sand bin, the upper surface of the sand-laying pad is a flat plane, and a sand-leaking pedal is detachably connected to the edge of the sand bin opening near the outer sand bin.

[0010] Preferably, the toilet lid is provided with an aromatherapy chamber, and the toilet lid has an aromatherapy passage hole on the side wall facing the toilet chamber that connects to the aromatherapy chamber.

[0011] Preferably, a waste collection port is provided on the outer wall of the waste collection chamber, and the waste collection port is hinged and covered with a waste collection cover.

[0012] Preferably, the driving mechanism includes a drive motor and a transmission gear set, one end of which is meshed with the output shaft of the drive motor, and the other end is fixedly connected to the rotating shaft.

[0013] Preferably, the base is provided with a circuit board assembly, a rotation orientation sensor and an anti-jamming sensor. The rotation orientation sensor is disposed on the bearing seat and located in the projection area of ​​the rotating shaft. The anti-jamming sensor is disposed at the front and / or rear edge of the base. The rotation orientation sensor, the anti-jamming sensor and the drive mechanism are all electrically connected to the circuit board assembly. The circuit board assembly is electrically connected to a control button group and a power interface.

[0014] Preferably, the base includes a base plate and a support bracket connected to opposite sides of the base plate. The support bracket includes a bracket panel and a bracket body that overlap and connect with each other. A sand-draining hole is provided in the middle area of ​​the base plate, penetrating the upper and lower surfaces of the base plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention abandons the existing electric drive method and designs a linkage mechanical structure by combining the connection and positional relationship between structural components. The mechanical structure drives the compartment cover to open and close synchronously during the rotation of the movable compartment. This not only saves manufacturing costs, but also ensures stable operation and reduces the likelihood of errors, making it suitable for use in automated equipment. Attached Figure Description

[0017] Figure 1 Explosion of the structure of this utility model Figure 1 ;

[0018] Figure 2 Explosion of the structure of this utility model Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the connection relationship of the synchronous opening and closing mechanism of this utility model;

[0020] Figure 4This is a schematic diagram showing the positional relationship between the toilet compartment cover and the toilet inlet in the synchronous opening and closing mechanism of this utility model.

[0021] Figure 5 This is a schematic diagram showing the positional relationship between the unfolded shape of the toilet compartment cover and the toilet inlet of the synchronous opening and closing mechanism of this utility model.

[0022] Figure 6 This is a schematic diagram of the detachable structure of the movable compartment and the base of this utility model;

[0023] Figure 7 This is a schematic diagram of the internal structure of the support bracket of this utility model;

[0024] Figure 8 This is a schematic diagram of the internal structure of the waste collection chamber of this utility model;

[0025] Figure 9 This is an exploded view of the support structure of this utility model;

[0026] Figure 10 For reference regarding the usage status of this utility model Figure 1 ;

[0027] Figure 11 For reference regarding the usage status of this utility model Figure 2 .

[0028] In the diagram: 1. Base; 11. Support bracket; 111. Bracket panel; 112. Bracket body; 113. Bolt hole; 114. First pulley seat; 115. First pulley; 116. Second pulley mounting seat; 1161. Closing area; 1162. Expanding area; 117. Second pulley; 1171. Deformation positioning component; 12. Base plate; 121. Sand leakage hole; 13. Shaft seat; 14. Sealing arm; 141. Buckle hole; 15. Elastic lock; 151. Toggle key; 152. Buckle tongue; 153. Return spring; 16. Elastic bolt; 17. Circuit board assembly; 171. Rotation orientation sensor; 172. Anti-jamming sensor; 173. Control button group; 174. Power interface; 18. Support foot; 181. Foot sleeve. ; 182 Weight sensor; 183 Conical fulcrum; 184 Reinforcing pad; 185 Foot bolt; 186 Anti-slip foot pad; 2 Movable compartment; 21 Sand compartment; 211 Filter sand plate; 212 Sand pad; 22 Waste collection compartment; 221 Waste inlet; 222 Waste cleaning inlet; 223 Surrounding edge; 224 Connecting arm; 225 Buckle hole; 23 Waste compartment cover; 231 Aroma chamber; 232 Aroma through hole; 233 Fixing rod; 234 Movable rod; 24 Waste cleaning cover; 25 Rotating shaft; 251 Shaft collar connector; 252 Circular shaft rail; 26 Bag opening fastening frame; 261 Elastic arm; 262 Buckle key; 27 Sand leakage pedal; 3 Drive mechanism; 31 Drive motor; 32 Transmission gear set. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-11A cat litter box lid synchronous opening and closing mechanism includes a base 1 and a movable compartment 2 disposed above and rotatably connected to the base 1. The base 1 has upwardly extending support brackets 11 on opposite sides. Each support bracket 11 includes a bracket panel 111 and a bracket body 112 that are mutually capped and connected. A bearing seat 13 is provided on each support bracket 11, and the bearing seats 13 on the two opposite support brackets 11 are coaxially arranged. Each bearing seat 13 includes a U-shaped seat and a sealing arm 14 surrounding the opening above the U-shaped seat. The sealing arm 14 includes a first end and a second end. The first end of the sealing arm is rotatably hinged to the U-shaped seat, and the second end is detachably connected to the U-shaped seat via an elastic lock 15. The elastic lock 15 includes a lock body and a lever 1. The latch 151 and the latch tongue 152 and the return spring 153 are respectively disposed on opposite sides of the latch body. Both the latch tongue 152 and the latch tongue 152 extend out of the outer side of the support bracket 11 housing. The return spring 153 is sandwiched between the latch body and the support bracket 11 and is elastically connected to the latch body. The second end of the sealing arm 14 is provided with a latch hole 141 corresponding to the position of the latch tongue 152. The latch tongue 152 can be fastened to the latch hole 141. Under normal conditions, the latch body always keeps the latch tongue 152 extending out of the support bracket 11 housing under the elastic force of the return spring 153. When the sealing arm 14 surrounds and covers the opening of the U-shaped seat, the latch tongue 152 is fastened to the latch hole 141. The sealing arm 14 and the U-shaped seat are fixed and maintained in an enclosed shape. When it is necessary to release the enclosed shape of the sealing arm 14 and the U-shaped seat, the key 151 is turned to allow the latch body to overcome the elastic force of the return spring 153, thereby causing the latch tongue 152 to retract into the housing of the support bracket 11, ultimately realizing the latch tongue 152 and the latch hole 141. The U-shaped seat has a bolt hole 113 that penetrates the inside and outside of the housing on the lower end face of the second end of the sealing arm 14. A spring bolt 16 is provided in the bolt hole 113, and the upper end of the spring bolt 16 extends out of the bolt hole 113. When the sealing arm 14 encloses and covers the opening of the U-shaped seat and the latch tongue 152 and the latch hole 141 are engaged, the locking mechanism is activated. In the closed configuration, the elastic bolt 16 is pressed down and extends into the housing, providing space for the sealing arm 14 to close. When the latch 152 is released from the latch hole 141, the elastic bolt 16 springs outward from the bolt hole 113, automatically assisting the sealing arm 14 to spring up from the U-shaped seat opening, facilitating the opening operation. The movable chamber 2 has a rotating shaft 25 coaxially arranged on opposite sides. The rotating shaft 25 is rotatably mounted on the bearing seat 13. The openable design of the sealing arm 14 allows the rotating shaft 25 to be detachably connected to the bearing seat 13, thus enabling the movable chamber 2 to be detachably connected to the base 1, facilitating the removal of the movable chamber 2 from the base 1 for cleaning. The rotating shaft 25 is driven by the drive mechanism 3.The driving mechanism 3 includes a drive motor 31 and a transmission gear set 32. One end of the transmission gear set 32 ​​is meshed with the output shaft of the drive motor 31, and the other end is fixedly connected to the rotating shaft 25. The driving mechanism 3 drives the rotating shaft 25 to rotate, thereby driving the movable chamber 2 to rotate about the rotating shaft 25 as the central axis. A sand chamber 21 is provided inside the movable chamber 2. The opening of the sand chamber 21 is located on the circumferential wall of the movable chamber 2. A filter plate 211 is provided inside the sand chamber 21. The filter plate 211 presses against the sand in the direction of rotation of the sand chamber 21. The sand silo 21 is divided into an outer sand silo and an inner sand silo. The outer sand silo is located near the edge of the sand silo 21 opening. A waste collection silo 22 is located above the inner sand silo. The waste collection silo 22 includes a waste inlet 221, which is located on the inner wall of the sand silo 21, near the edge of the sand silo 21 facing the outer sand silo. A filter plate 211 is located between the outer sand silo and the waste inlet 221. A waste silo cover 23 is hinged to the waste inlet 221, and the waste silo cover 23 is hinged to the edge of the waste inlet 221 near the sand silo 21 opening.

[0031] The edge of the inlet 221 extends axially inward toward the inner side of the collection chamber 22 to form a surrounding rim 223. A bag opening fastening frame 26 is detachably fitted onto the surrounding rim 223. A connecting arm 224 is provided on the inner side of the inlet 221. The connecting arm 224 is arranged parallel to the surrounding rim 223 and has a fastening hole 225. The bag opening fastening frame 26 extends axially at the position corresponding to the connecting arm 224 to form an elastic arm 261. A fastening key 262 is provided on the wall of the elastic arm 261. The bag opening fastening frame 26 is connected to the fastening hole 225 via the fastening key 262. The interlocking mechanism of components 5 enables a detachable connection with the surrounding edge 223. During use, a garbage bag is installed inside the collection chamber 22. The opening of the garbage bag can be detachably fixed to the surrounding edge 223 via a bag opening fastening frame 26. The bag opening fastening frame 26 facilitates the installation of the garbage bag and ensures that the garbage bag is stable and not easily detached after installation. A cleaning port 222 is provided on the outer wall of the collection chamber 22, and a cleaning cover 24 is hinged to the cleaning port 222. When cleaning the collection chamber 22, the garbage bag can be removed or removed by opening the cleaning cover 24. An aromatherapy chamber 231 is provided on the chamber cover 23. An aromatherapy passage 232 communicating with the aromatherapy chamber 231 is provided on the side wall of the chamber cover 23 facing the collection chamber 22. Aromatherapy material is placed in the aromatherapy chamber 231, and the fragrance emitted by the aromatherapy material enters the collection chamber 22, effectively removing odors inside the collection chamber 22.

[0032] A synchronous opening and closing mechanism is provided between the toilet compartment cover 23 and the base 1. The synchronous opening and closing mechanism includes a fixed rod 233 and a movable rod 234 provided on the toilet compartment cover 23, and a first guide rail 116 and a second guide rail 117 provided on the support bracket 11. The fixed rod 233 and the movable rod 234 are both arranged parallel to the length direction of the toilet compartment cover 23, and the movable rod 234 is located on the side of the fixed rod 233 facing the rotating shaft 25. Both the first guide rail 116 and the second guide rail 117 are arc-shaped guide rails. The first guide rail 116 is centered on the rotating shaft 25, and the second guide rail 117 is centered on the fixed rod 233. The planes containing the first guide rail 116 and the second guide rail 117 are parallel to each other. The first guide rail 116 includes a retractable area 1161 and an expandable area 1162. The retractable area 1161 and the expandable area 1162 abut against each other at opposite ends. The distance R1 between the rail wall of the retractable area 1161 away from the rotating shaft 25 and the central axis of the rotating shaft 25 is less than the distance R1 between the rail wall of the expandable area 1162 away from the rotating shaft 25 and the central axis of the rotating shaft 25. The distance R2 between the central axes of shaft 25, the second guide rail 117 is disposed between the fixed rod 233 and the rotating shaft 25, the movable rod 234 is slidably inserted into the second guide rail 117, the second guide rail 117 is provided with a deformation positioning member 1171, the deformation positioning member 1171 is a silicone sheet, the circumferential edge of the deformation positioning member 1171 is fixedly connected to the circumferential wall of the second guide rail 117, the deformation positioning member 1171 has a fence-shaped crack in the middle, the movable rod 234 is disposed through the fence-shaped crack, and is dampedly connected to the deformation positioning member 1171 during the sliding process relative to the second guide rail 117. When the movable chamber 2 rotates clockwise around the pivot 25, the fixed rod 233, the movable rod 234, and the second guide rail 117 all move along with the movable chamber 2. Since the fixed rod 233 and the second guide rail 117 are fixed to the movable chamber 2, both rotate around the pivot 25. At this time, the end of the movable rod 234 is inserted into the first guide rail 116, and under the guiding action of the first guide rail 116, it will be positioned within the second guide rail 117. When the movable rod 234 is located in the retracting area 1161, the toilet lid 23 is closed relative to the inlet 221. When the movable rod 234 moves from the retracting area 1161 into the unfolding area 1162, the movable rod 234 is guided by the unfolding area 1162 and simultaneously changes the orientation of the first guide rail 117. The toilet lid 23 is gradually opened from the closed state until the movable compartment 2 rotates to the target position, at which point the toilet lid 23 and the inlet 221 form an opening of not less than 90 degrees.

[0033] The rotating shaft 25 includes a collar connector 251, and the collar connector 251 forms an annular track 252 coaxially with the rotating shaft 25. The bearing seat 13 has multiple first pulley seats 114 arranged circumferentially inwards, and first pulleys 115 are mounted on the first pulley seats 114. When the rotating shaft 25 is mounted on the bearing seat 13, the edges of the first pulleys 115 are embedded in the annular track 252 and slidably connected to it. The inner side of the base 1 and the circumferential side of the movable chamber 2 are both formed with rotatable guide arc surfaces. A second pulley seat 116 is provided on the inner side of the base 1, and a second pulley 117 is rotatably mounted on the second pulley seat 116. The rotation plane of the second pulley 117 is parallel to the rotation plane of the movable chamber 2, and the edge of the second pulley 117 facing the movable chamber 2 abuts against the circumferential side of the movable chamber 2. Through the coordination of these two smooth auxiliary mechanisms, the movable chamber 2 can achieve a smooth and gradual transformation when rotating relative to the base 1.

[0034] A sand-laying pad 212 is detachably laid on the bottom surface of the outer sand bin. The upper surface of the sand-laying pad 212 is a flat plane. A sand-leaking pedal 27 is detachably connected to the edge of the sand bin 21 near the outer sand bin.

[0035] A support leg 18 is provided on the lower end face of the base 1. The support leg 18 includes a foot sleeve 181 fixedly connected to the base 1, a foot bolt 185 slidably sleeved inside the foot sleeve 181 and slidable along the axial direction of the foot sleeve 181, and a weight sensor 182 clamped between the foot sleeve 181 and the foot bolt 185. The weight sensor 182 includes a connecting part, a resistance strain gauge, and an elastic body. The connecting part is fixedly connected to the foot sleeve 181, and the elastic body is fixedly connected to the connecting part. The resistance strain gauge is disposed on the elastic body. A conical fulcrum 183 is provided on the surface of the elastic body facing away from the connecting part. The foot bolt 185 faces... A reinforcing pad 184 is provided on one side of the weight sensor 182. The conical fulcrum 183 is contacted and connected to the reinforcing pad 184. The reinforcing pad 184 can be made of steel sheet. The reinforcing pad 184 is used to support the conical fulcrum 183 and can better protect the foot bolt 185, effectively extending the service life of the foot bolt 185. The conical feature of the conical fulcrum 183 can effectively adapt to the shape changes of the foot 18, so that good contact can be guaranteed when the foot 18 is reasonably tilted, thereby improving the sensing stability of the weight sensor 182. An anti-slip foot pad 186 is installed on the lower end face of the foot bolt 185.

[0036] The base 1 is provided with a circuit board assembly 17, a rotation orientation sensor 171, and an anti-jamming sensor 172. The rotation orientation sensor 171 is disposed on the bearing seat 13 and located in the projection area of ​​the rotating shaft 25. The anti-jamming sensor 172 is disposed on the front and / or rear edge of the base 1. The rotation orientation sensor 171, the anti-jamming sensor 172, and the drive mechanism 3 are all electrically connected to the circuit board assembly 17. The circuit board assembly 17 is electrically connected to a control button group 173 and a power interface 174.

[0037] The base 1 includes a base plate 12 and a support bracket 11 connected to opposite sides of the base plate 12. A sand leakage hole 121 is provided in the middle area of ​​the base plate 12, penetrating the upper and lower surfaces of the base plate 12. The sand leakage hole 121 can prevent the cat litter box from accumulating sand on the base during use and can improve the cleanliness of the cat litter box.

[0038] Operating mode: The working circuit of the litter box is controlled by the control button group 173. At this time, the litter box is in standby mode. In standby mode, the inlet 221 and the litter box cover 23 are closed. The litter pad 212 is covered with clean cat litter. When the cat enters the litter box 21, the weight sensor 182 on the support leg 18 senses the cat's entry and sends a trigger command to the circuit board assembly 17. When the cat finishes defecating and exits the litter box 21, the weight sensor 182 on the support leg 18 recognizes the cat leaving the box and sends a corresponding signal to the circuit board assembly 17. After receiving the signal and confirming it, the circuit board assembly 17 starts the drive mechanism 3 to drive the movable chamber 2 to rotate clockwise around the pivot 25. During the rotation, the litter box cover 23 is opened synchronously and gradually under the action of the synchronous opening and closing mechanism. The cat litter on the litter pad 212 that has not been contaminated by cat feces will be filtered by the filter plate. After filtration, the litter flows into the inner litter bin and is temporarily recycled. The litter that has clumped up due to its large size is blocked on the filter plate 211. When the movable bin 2 continues to rotate, causing the filter plate 211 to tilt towards the inlet 221, the litter contaminated with cat feces will roll into the garbage bag inside the collection bin 22 and be collected. Subsequently, the rotation orientation sensor 171 detects that the movable bin 2 has rotated to the set position and controls the movable bin 2 to rotate counterclockwise through the circuit board assembly 17. During the rotation of the movable bin 2, the litter bin cover 23 is gradually closed synchronously under the action of the synchronous opening and closing mechanism. The litter that has not been contaminated with cat feces and is temporarily stored in the inner litter bin flows back into the litter pad 212 in the outer litter bin for continued use. In order to make the litter spread more evenly on the litter pad 212, the movable bin 2 will rotate slightly back and forth after rotating counterclockwise to the set limit position, thereby achieving the effect of spreading the litter evenly. In addition, it should be noted that the litter box cover 23 is designed to seal the inlet 221 to prevent the odor inside the litter box 22 from leaking out and polluting the environment to the greatest extent possible. On the other hand, when the litter box cover 23 is closed, it can cover a large area of ​​the inner wall of the litter box 21, reducing the possibility of the cat being contaminated by cat feces residue on the wall of the litter box 21 after entering the litter box 21.

[0039] In summary, this utility model abandons the existing electric drive method and designs a linkage mechanical structure by combining the connection and positional relationship between structural components. The mechanical structure drives the compartment cover 23 to open and close synchronously during the rotation of the movable compartment. This not only saves manufacturing costs, but also ensures stable operation and reduces the likelihood of errors, making it suitable for use in automated equipment.

[0040] 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 process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cat litter box lid synchronous opening and closing mechanism, comprising a base (1) and a movable compartment (2) disposed above the base (1) and rotatably connected to the base (1), characterized in that: The base (1) has upwardly extending support brackets (11) on both sides. Each support bracket (11) has a bearing seat (13). The bearing seats (13) on the two opposing support brackets (11) are coaxially arranged. The movable compartment (2) has coaxially arranged rotating shafts (25) on both sides. The rotating shafts (25) are rotatably mounted on the bearing seats (13). The rotating shafts (25) are driven by a drive mechanism (3), which drives the rotating shafts (25) to rotate. The movable chamber (2) is driven to rotate around the pivot (25). The movable chamber (2) is provided with a collection chamber (22). The collection chamber (22) includes a waste inlet (221). A waste chamber cover (23) is hinged to the waste inlet (221). A synchronous opening and closing mechanism is provided between the waste chamber cover (23) and the base (1). The synchronous opening and closing mechanism can synchronously change the opening and closing state of the waste chamber cover (23) and the waste inlet (221) during the rotation of the movable chamber (2).

2. The cat litter box lid synchronous opening and closing mechanism according to claim 1, characterized in that: The synchronous opening and closing mechanism includes a fixed rod (233) and a movable rod (234) disposed on the toilet lid (23), and a first guide rail (116) and a second guide rail (117) disposed on the support bracket (11). The fixed rod (233) and the movable rod (234) are both arranged parallel to the length direction of the toilet lid (23). The movable rod (234) is disposed on the side of the fixed rod (233) facing the rotating shaft (25). The first guide rail (116) and the second guide rail (117) are both arc-shaped guide rails. The first guide rail (116) is centered on the rotating shaft (25), and the second guide rail (117) is centered on the fixed rod (233). The planes containing the first guide rail (116) and the second guide rail (117) are arranged parallel to each other. The first guide rail (116) includes a retractable area (1161) and an unfoldable area (1162). The retractable area (1161) and the unfoldable area (1162) abut against each other at opposite ends. The distance R1 between the rail wall of the retractable area (1161) away from the rotating shaft (25) and the central axis of the rotating shaft (25) is less than the distance R2 between the rail wall of the unfoldable area (1162) away from the rotating shaft (25) and the central axis of the rotating shaft (25). The second guide rail (117) is located between the fixed rod (233) and the rotating shaft (25). The movable rod (234) is slidably inserted into the second guide rail (117).

3. The cat litter box lid synchronous opening and closing mechanism according to claim 2, characterized in that: The second guide rail (117) is provided with a deformation positioning component (1171), which is a silicone sheet. The circumferential edge of the deformation positioning component (1171) is fixedly connected to the circumferential wall of the second guide rail (117). A fence-shaped crack is opened in the middle of the deformation positioning component (1171). The movable rod (234) is provided through the fence-shaped crack and is dampedly connected to the deformation positioning component (1171) during the sliding process relative to the second guide rail (117).

4. The cat litter box lid synchronous opening and closing mechanism according to claim 1, characterized in that: The movable chamber (2) is equipped with a sand chamber (21) inside. The opening of the sand chamber (21) is located on the circumferential wall of the movable chamber (2). A filter plate (211) is provided inside the sand chamber (21). The filter plate (211) divides the sand chamber (21) into an outer sand chamber and an inner sand chamber in the direction of rotation of the sand chamber (21). The outer sand chamber is located near the edge of the opening of the sand chamber (21). The feces collection chamber (22) is located above the inner sand chamber. The feces inlet (221) is located on the inner wall of the sand chamber (21) and is located near the edge of the opening of the sand chamber (21) facing the outer sand chamber. The filter plate (211) is located between the outer sand chamber and the feces inlet (221). The feces chamber cover (23) is hinged to the edge of the feces inlet (221) near the opening of the sand chamber (21).

5. The cat litter box lid synchronous opening and closing mechanism according to claim 4, characterized in that: A sand-laying pad (212) is detachably laid on the bottom surface of the outer sand bin. The upper surface of the sand-laying pad (212) is a flat plane. A sand-leaking pedal (27) is detachably connected to the edge of the sand bin (21) near the outer sand bin.

6. A cat litter box lid synchronous opening and closing mechanism according to any one of claims 1, 2, and 4, characterized in that: The toilet lid (23) is provided with an aromatherapy chamber (231), and the toilet lid (23) has an aromatherapy passage (232) that connects to the aromatherapy chamber (231) on the side wall facing the toilet (22).

7. A cat litter box lid synchronous opening and closing mechanism according to claim 1 or 4, characterized in that: The outer wall of the collection chamber (22) is provided with a cleaning port (222), and the cleaning port (222) is hinged to be provided with a cleaning cover (24).

8. The cat litter box lid synchronous opening and closing mechanism according to claim 1, characterized in that: The drive mechanism (3) includes a drive motor (31) and a transmission gear set (32). One end of the transmission gear set (32) is meshed with the output shaft of the drive motor (31), and the other end is fixedly connected to the rotating shaft (25).

9. The cat litter box lid synchronous opening and closing mechanism according to claim 1, characterized in that: The base (1) is provided with a circuit board assembly (17), a rotation orientation sensor (171) and an anti-jamming sensor (172). The rotation orientation sensor (171) is located on the bearing seat (13) and in the projection area of ​​the rotating shaft (25). The anti-jamming sensor (172) is located at the front and / or rear edge of the base (1). The rotation orientation sensor (171), the anti-jamming sensor (172) and the drive mechanism (3) are all electrically connected to the circuit board assembly (17). The circuit board assembly (17) is electrically connected to a control button group (173) and a power interface (174).

10. A cat litter box lid synchronous opening and closing mechanism according to claim 1 or 9, characterized in that: The base (1) includes a base plate (12) and a support bracket (11) connected to opposite sides of the base plate (12). The support bracket (11) includes a support panel (111) and a support body (112) that are connected to each other. A sand-leaking hole (121) is provided in the middle area of ​​the base plate (12) and passes through the upper and lower surfaces of the base plate (12).

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