Pet toilet basin

Abstract

The utility model belongs to the technical field of pet supplies, and particularly relates to a pet defecation basin which comprises a basin frame, and a basin body is rotatably arranged on the basin frame. The sand shovel is arranged on the basin frame and can be rotationally switched between a sand shoveling position and a sand pouring position, the sand shovel extends into the basin body when the sand shoveling position is in the sand shoveling position, and the sand shovel is lifted and retreats from the basin body when the sand pouring position is in the sand pouring position; the weighing mechanism is arranged below the basin body; the transmission mechanism comprises a turntable, and the turntable is arranged below the basin body and is configured to drive the basin body to rotate at the sand shoveling position; the linkage mechanism is connected with the sand shovel and the weighing mechanism, when the sand shovel is in the sand shoveling position, the linkage mechanism enables the weighing mechanism to be separated from the pot body, and the pot body is in transmission connection with the rotary disc; at the sand pouring position, the linkage mechanism jacks up the weighing mechanism to be separated from the rotating disc, and the weighing mechanism is attached to the basin body for weighing. According to the utility model, two operations of sand shoveling and weighing can be realized, and the rotary sand shoveling structure avoids the risk of pinching a pet; the separated internal weighing precision is higher, and the problem that an existing structure is inaccurate in weighing is solved.

Description

Technical Field

[0001] This utility model belongs to the field of pet supplies technology, and in particular relates to a pet toilet bowl. Background Technology

[0002] Pet litter (such as cat litter) is used by pets to bury their feces and urine. It has good absorbency and is typically placed in a litter box. Trained pets will defecate in the litter box, where the litter absorbs the waste, forming a clump that easily buries the urine and feces. The litter box, through built-in mechanical structures or sensor technology, can automatically clean the litter, eliminating the need for frequent manual litter changes and saving significant time and effort. Therefore, pet litter boxes, with their automation, convenience, and health benefits, are widely used in various fields such as family pet ownership, pet stores and boarding facilities, and special needs scenarios.

[0003] However, most existing pet litter boxes are roller-type, which clean up litter by rotating the roller and combining functions such as shoveling, washing, and drying with a flat shovel. This makes them complex and difficult to clean. When a pet (such as a cat) accidentally enters a roller-type pet litter box or fails to exit in time, there is a safety hazard of being pinched. In addition, the internal space of the roller is relatively small, and litter may get stuck on the edge due to the long path it travels during the rolling process, resulting in "hanging on the wall" or "sticky surface" phenomena, which affects the cleaning effect.

[0004] Therefore, to address these safety concerns, rotating pet toilet bowls have emerged on the market. However, current pet toilet bowls are becoming increasingly intelligent, requiring not only collection and cleaning of excrement but also weighing to monitor and manage pet health. While the rotating structure of current pet toilet bowls reduces the risk of pinching injuries to some extent, its structural limitations mean it can only weigh the entire unit. Although this weighing can roughly reflect the amount of litter used, it only provides a vague estimate of the weight of pet excrement. Furthermore, its accuracy is easily affected by external factors such as ground flatness and floor material, leading to inaccurate data. It is also often difficult to completely eliminate interference from transmission components and wiring, causing the weighed weight to include other parts, resulting in poor weighing performance. It cannot accurately measure and calculate the total weight of litter containing excrement clumps, thus failing to achieve accurate health monitoring through analyzing and recording the weight of pet excrement. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a pet toilet bowl to solve the technical problems of low accuracy in weighing and detecting pet excrement and the risk of pinching injury in the prior art.

[0006] To achieve the above and other related objectives, the technical solution of this utility model is as follows:

[0007] A pet toilet bowl includes:

[0008] A basin stand, on which a basin body is rotatably mounted;

[0009] A sand shovel is mounted on the basin frame and can rotate between a sand shoveling position and a sand pouring position. When in the sand shoveling position, the sand shovel extends into the basin body, and when in the sand pouring position, the sand shovel is lifted and withdrawn from the basin body.

[0010] A weighing mechanism is located below the basin.

[0011] A transmission mechanism, including a turntable disposed below the basin body and configured to drive the basin body to rotate during the sand-shoveling position; and

[0012] The linkage mechanism connects the sand shovel and the weighing mechanism respectively. When shoveling sand, the linkage mechanism disengages the weighing mechanism from the basin, and the basin is connected to the turntable via transmission. When emptying sand, the linkage mechanism lifts the weighing mechanism to disengage it from the turntable, and the weighing mechanism is in contact with the basin for weighing.

[0013] In the above structure, when the sand is being shoveled, the rotating basin driven by the turntable works in conjunction with the sand shovel to achieve the sand shoveling operation. After the sand is shoveled into the sand shovel, the sand shovel is switched to the sand pouring position, where the sand can be filtered out by the sand shovel and the sand clumps can be poured out by the sand shovel. This sand shoveling method makes it easy for the sand shovel to clean efficiently in different positions, while reducing the direct friction of mechanical parts, resulting in better sand shoveling effect.

[0014] By setting up a linkage mechanism, the sand shovel and weighing mechanism can operate in tandem. The linkage mechanism automatically switches between the sand shoveling position and the sand pouring position, realizing flexible connection and disconnection between the weighing mechanism and the basin. This ensures both cleaning efficiency during sand shoveling and accuracy of weighing results. In the sand shoveling position, the linkage mechanism disengages the weighing mechanism from the basin, the basin connects to the turntable and rotates under the turntable's drive, and the sand shovel extends into the basin to shovel sand. In the sand pouring position, the sand shovel is raised and withdrawn from the basin. The linkage mechanism lifts the weighing mechanism and the basin, causing the basin to disengage from the turntable and engage with the weighing mechanism for weighing. This structure enables both shoveling and weighing operations, with a linkage mechanism switching between the two modes. When shoveling, the weighing mechanism is completely disengaged and no longer bears weight, thus protecting the weighing mechanism. During weighing, the basin is lifted and detached from the turntable, allowing the weighing mechanism to weigh the basin independently without any transmission links or lead wires, resulting in higher weighing accuracy and solving the problem of inaccurate weighing detection in pet toilet bowls. Furthermore, when the pet is using the toilet bowl, it is in a raised weighing state and detached from the transmission mechanism, preventing rotation and making its use safer, thus avoiding the risk of pinching the pet. The overall structure is simple and easy to install.

[0015] Optionally, when shoveling sand, the turntable drives the basin to rotate in a first direction to perform sand shoveling operations, and the turntable drives the basin to rotate in a second direction opposite to the first direction to perform sand spreading operations.

[0016] The above structure drives the basin to rotate in the first and second directions via a turntable, thereby realizing the sand shoveling and sand spreading operations respectively. By integrating the two steps of sand shoveling and sand spreading through the rotation of the basin in the first and second directions, it is conducive to the optimization of the automated process, which not only reduces manual intervention but also improves the efficiency of the overall cleaning operation.

[0017] Optionally, the linkage mechanism includes a cam, a lever, and a support. The cam is rotatably disposed on one side of the basin, and the first end of the cam is connected to the sand shovel. The support is disposed below the basin, and the lever is rotatably disposed on the support. The first end of the lever is connected to the weighing mechanism.

[0018] The above structure, through the coordinated operation of the cam component and the lever component, and by utilizing the contour shape of the cam component and the lever principle, can realize the downward pressing and lifting of the weighing mechanism, thereby achieving the switching between different working states of sand shoveling and sand dumping (weighing), and thus realizing the linkage between sand shoveling and weighing operations. When dumping sand, the weighing action is initiated through the linkage structure, ensuring that sand shoveling does not involve weighing, and weighing does not involve sand shoveling. This ensures both the safety of sand shoveling operations and the weighing accuracy during weighing.

[0019] Optionally, in the sand-shoveling position, the second end of the cam component disengages from the second end of the lever component to allow the weighing mechanism to fall; in the sand-pouring position, the second end of the cam component abuts against the second end of the lever component to allow the weighing mechanism to rise.

[0020] The above structure uses a linkage mechanism composed of cam and lever components to lift and lower the weighing mechanism, thereby achieving sand shoveling and sand dumping (weighing). This automated process reduces manual intervention and improves the automation level and reliability of the operation.

[0021] Optionally, the distance between the first end of the lever and the support is less than the distance between the second end of the lever and the support.

[0022] The above structure utilizes the characteristics of the lever principle. By making the distance between the first end of the lever and the support smaller than the distance between the second end of the lever and the support, the force exerted by the cam on the second end of the lever can be reduced. The effect of lifting the weighing mechanism can be achieved with a smaller force from the cam.

[0023] Optionally, the lever includes a first flat section, a second flat section, and a ramp section connecting the first flat section and the second flat section, wherein the second flat section is rotatably mounted on the support.

[0024] The aforementioned structure, with its first and second flat sections, ensures relative stability of the lever in its initial and final positions, guaranteeing the continuity and accuracy of force transmission. The first flat section of the lever abuts against the second end of the cam during the pouring position, allowing the second end of the cam to press down on the first flat section, thereby lifting the second flat section. The second flat section of the lever is rotatably mounted on a support to achieve the downward or upward movement of the weighing mechanism. The ramp section of the lever serves as a transition connecting the first and second flat sections. Considering the assembly height of the cam and the weighing mechanism, the ramp section allows the first flat section, currently at a higher position, to transition to the second flat section, currently at a lower position. This amplifies the force transmitted to the second flat section of the lever, thereby driving the weighing mechanism.

[0025] Optionally, the cam member is hook-shaped, including a connecting portion and an arc portion connected together, the arc portion being arc-shaped to tangentially abut against the lever member.

[0026] The above structure features a hook-shaped cam that allows for easy switching between different states. The strip-shaped connecting part facilitates connection with the sand shovel, and the arc-shaped part allows for smooth movement of the lever when it comes into contact with the lever, avoiding impact and vibration caused by direct collision and reducing friction loss.

[0027] Optionally, the sand shovel is provided with a first locking part, and the first end of the cam is provided with a second locking part, the second locking part engaging with the first locking part.

[0028] The above structure, with its locking design between the first and second locking parts, ensures a stable and reliable connection between the sand shovel and the cam component. It also makes the assembly process of the sand shovel and the cam component simpler and faster, improving work efficiency. Furthermore, when the sand shovel or the cam component is worn or damaged, the locking design makes the disassembly and replacement of the components easy and simple.

[0029] Optionally, the linkage mechanism further includes a shovel drive component, which is disposed on the basin frame and connected to the cam component via a rotating shaft to drive the cam component to rotate.

[0030] The above structure drives the cam component to reciprocate through the shovel drive component, thereby switching the sand shovel between the sand shoveling position and the sand dumping position, which facilitates the direct transmission of power. This method reduces energy loss during the transmission process and improves the efficiency of power transmission.

[0031] Optionally, the transmission mechanism further includes a basin drive member, a driving drive wheel, and a driven drive wheel. The driving end of the basin drive member is connected to the driving drive wheel, the driving drive wheel is meshed with the driven drive wheel, and the driven drive wheel is sleeved on the turntable.

[0032] The above structure, through the power transmission between the basin drive component, the active drive wheel, and the driven drive wheel, can easily realize the rotation of the turntable, ensure the continuity and stability of power transmission, and reduce energy loss during the transmission process. This allows the driven drive wheel to rotate at a predetermined speed and direction, thereby driving the turntable to achieve precise motion control. The compact layout of the basin drive component, the active drive wheel, and the driven drive wheel also helps to save space.

[0033] Optionally, the top of the turntable is provided with an annular friction element, and the basin is connected to the turntable through the friction element when the sand is being shoveled.

[0034] The above structure, by incorporating friction components, facilitates the connection between the basin and the turntable. Power transmission is achieved through the frictional force of these components, which in turn drives the basin to rotate, making the transmission mechanism safer. Combining gear transmission with the frictional force transmission of the friction components, even if the basin gets stuck during rotation (e.g., sand sticking to the wall), the basin will slide between itself and the turntable due to the friction components, thus preventing damage to the transmission mechanism.

[0035] Optionally, the weighing mechanism includes a weighing bracket, a weighing sensor, and a weighing base. The top of the weighing bracket is adapted to the basin, the bottom of the weighing bracket is connected to the weighing sensor, and the weighing sensor is connected to the weighing base.

[0036] The above structure, through the weighing bracket to support the basin when in contact with it, ensures the stability and accuracy of the basin during the weighing process; through the weighing base to support the weighing sensor, so that the lever can lift the weighing base to raise the entire weighing mechanism.

[0037] Optionally, the weighing mechanism further includes a plurality of guide columns vertically arranged below the weighing support, and the weighing base has a plurality of guide holes, with the guide columns passing through the guide holes.

[0038] The above structure, by setting guide columns that are adapted to guide holes on the weighing base, can guide the movement of the weighing base and the weighing sensors on it. This helps ensure that the weighing mechanism can move vertically when the linkage mechanism drives the weighing mechanism to rise or fall, thus ensuring the stability and reliability of its movement and improving the accuracy of weighing.

[0039] Optionally, the sand shovel has multiple side-by-side and spaced-apart screening teeth, which are wavy to make the sand roll back and forth in the sand shovel.

[0040] The above structure, by setting a sand shovel with wavy screening teeth, can increase the screening path. The sand rolls back and forth in the sand shovel, which promotes the interaction between sand particles and increases the number of contacts between the sand and the screening teeth, making it easier to filter out clean sand, achieve a finer screening effect, and avoid waste sand.

[0041] Optionally, the pet toilet bowl also includes a litter collection bucket with an open top, disposed on the bowl stand and adjacent to the litter shovel, configured to collect litter poured out by the litter shovel when it is in the litter pouring position.

[0042] The above structure, by setting up a sand collection bucket, is used to collect the clumps of sand poured out by the sand shovel at the sand pouring position, thereby improving the convenience and efficiency of the cleaning process and keeping the environment clean.

[0043] Optionally, the pet toilet bowl also includes an open-top outer shell with a receiving cavity, and the bowl body, weighing mechanism, transmission mechanism, linkage mechanism and sand collection bucket are disposed within the receiving cavity.

[0044] The aforementioned structure provides additional protection for the various mechanisms and components, and reduces the risk of damage from accidental collisions or falls; the open top design of the outer shell allows pets to freely enter and exit the pet toilet bowl, while also partially concealing the interior of the pet toilet bowl.

[0045] As described above, the pet litter box of this invention has the following beneficial effects:

[0046] By setting up a linkage mechanism to connect the sand shovel and the weighing mechanism respectively, when the sand is being shoveled, the basin is detached from the weighing mechanism and rotates under the transmission of the turntable to perform the sand shoveling operation. When the sand is being poured out, the linkage mechanism initiates the weighing action, the basin is detached from the turntable and comes into contact with the weighing mechanism to perform the weighing operation. In this way, both sand shoveling and weighing functions can be realized. It adopts a detachable internal weighing system, without any transmission links or lead wires. Only the basin is weighed independently, resulting in higher weighing accuracy and solving the problem of inaccurate weighing detection of pet toilet bowls. Moreover, when the pet is using it, the basin is in a raised weighing state and detached from the transmission mechanism, making the use of the pet toilet bowl safer and avoiding the risk of pinching the pet. The overall structure is simple and easy to install.

[0047] Furthermore, by setting a gear-type transmission mechanism and combining it with the friction force transmission of the friction parts at the bottom of the basin, the basin is driven to rotate, making the transmission mechanism safer; by setting a sand shovel with wave-shaped sand-screening teeth, the sand-screening path is increased, making it easier to filter out clean sand and avoid waste sand. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the external structure of a pet toilet bowl according to an embodiment of the present utility model.

[0049] Figure 2 This is a schematic diagram of the internal structure of the pet toilet bowl according to an embodiment of the present invention. Figure 1 ;

[0050] Figure 3 This is a schematic diagram of the internal structure of the pet toilet bowl according to an embodiment of the present invention. Figure 2 ;

[0051] Figure 4 This is a schematic diagram showing the state of the sand shovel in the sand-shoveling position according to an embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram showing the state of the sand shovel in the sand-pouring position according to an embodiment of the present invention;

[0053] Figure 6 This is a schematic diagram of the weighing mechanism in the sand-shoveling position according to an embodiment of the present invention;

[0054] Figure 7 This is a schematic diagram of the weighing mechanism in the sand-pouring position according to an embodiment of the present invention;

[0055] Figure 8 This is a schematic diagram of the linkage mechanism according to an embodiment of the present utility model;

[0056] Figure 9 This is a schematic diagram of the assembly structure of the sand shovel and the cam component according to an embodiment of the present utility model;

[0057] Figure 10This is a schematic diagram of the weighing mechanism according to an embodiment of the present utility model.

[0058] Explanation of reference numerals in the attached figures

[0059] 10-Pourer stand; 11-Pourer body;

[0060] 20-Sand shovel; 21-First locking part; 22-Sand screening teeth;

[0061] 30 - Weighing mechanism; 31 - Weighing bracket; 32 - Weighing sensor; 33 - Weighing base; 331 - Guide hole;

[0062] 40 - Transmission mechanism; 41 - Turntable; 42 - Basin drive component; 43 - Driven drive wheel; 44 - Driven drive wheel;

[0063] 50-Linkage mechanism;

[0064] 51-Cam component; 511-Connecting part; 512-Arc portion; 513-Second snap-fit ​​portion;

[0065] 52-Shovel drive component;

[0066] 53-Lever component; 53a-First flat section; 53b-Second flat section; 53c-Slope section; 531-Lever shaft;

[0067] 60-Sand collection bucket;

[0068] 70 - Outer shell. Detailed Implementation

[0069] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0070] It should be noted that the illustrations provided in this embodiment are merely schematic representations of the basic concept of this utility model. Therefore, the illustrations only show components relevant to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes and to assist those skilled in the art in understanding and reading the content disclosed in the specification. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0071] In order to describe this utility model in detail, the pet toilet bowl of this utility model will be described in detail below:

[0072] Please combine Figures 1 to 7 As shown, this utility model provides a pet toilet bowl, including: a bowl frame 10, a litter shovel 20, a weighing mechanism 30, a transmission mechanism 40, and a linkage mechanism 50. A bowl body 11 is rotatably mounted on the bowl frame 10. The litter shovel 20 is mounted on the bowl frame 10 and can rotate between a litter-shoveling position and a litter-pouring position. In the litter-shoveling position, the litter shovel 20 extends into the bowl body 11; in the litter-pouring position, the litter shovel 20 is raised and retracted from the bowl body 11. The weighing mechanism 30 is located below the bowl body 11. The transmission mechanism 40 includes a turntable 41, which is located below the bowl body 11 (the turntable 41 is located at the weighing position). The outer periphery of the mechanism 30, when the sand is being poured, the linkage mechanism 50 can support the weighing mechanism 30 from the hollow part of the inner ring of the turntable 41, configured to drive the basin 11 to rotate when the sand is being shoveled; the linkage mechanism 50 is connected to the sand shovel 20 and the weighing mechanism 30 respectively. When the sand is being shoveled, the linkage mechanism 50 causes the weighing mechanism 30 to disengage from the basin 11, and the basin 11 is connected to the turntable 41 and rotates under the drive of the turntable 41; when the sand is being poured, the linkage mechanism 50 lifts the weighing mechanism 30 to disengage from the turntable 41, and the weighing mechanism 30 is in contact with the basin 11 for weighing.

[0073] Specifically, the bottom wall of the basin frame 10 is provided with a circumferential sliding track, and the top wall of the basin body 11 slides in conjunction with the track to allow the basin body 11 to rotate. The basin body 11 is used to hold sand; the sand shovel 20 is mounted on the basin frame 10 and located around the basin body 11. (See reference...) Figure 4 When shoveling sand, the sand shovel 20 extends into the basin 11, and the turntable 41 drives the basin 11 to rotate, cooperating with the sand shovel 20 to achieve the sand shoveling operation. After the sand is shoveled into the sand shovel 20, refer to... Figure 5 By switching the sand shovel 20 to the sand pouring position, the sand can be filtered out by the sand shovel 20, and the clumps of sand can be poured out by the sand shovel 20. This sand shoveling method makes it easy for the sand shovel 20 to clean efficiently in different positions, while reducing the direct friction of mechanical parts, resulting in a better sand shoveling effect.

[0074] In addition to scooping litter, pet toilet bowls also need to provide a weighing function for pet excrement. By recording the weight of each excrement and analyzing the patterns of change, it is possible to monitor and manage the pet's health, thus enhancing the intelligence of pet toilet bowls.

[0075] By setting up a linkage mechanism 50, the sand shovel 20 and the weighing mechanism 30 can operate in conjunction. The linkage mechanism 50 automatically switches between the sand shoveling position and the sand pouring position, realizing flexible connection and disconnection between the weighing mechanism 30 and the basin 11. This ensures both cleaning efficiency during sand shoveling and accuracy of weighing results. (See reference...) Figure 3 and Figure 6 When the sand is being shoveled, the linkage mechanism 50 disengages the weighing mechanism 30 from the basin 11, and the basin 11 is connected to the turntable 41 and rotates under the drive of the turntable 41. The sand shovel 20 extends into the basin 11 to perform the sand shoveling operation; see reference. Figure 3 and Figure 7 When the sand is being poured, the sand shovel 20 is lifted and retracted from the basin 11. The linkage mechanism 50 lifts the weighing mechanism 30 and the basin 11, so that the basin 11 is separated from the turntable 41 and fits with the weighing mechanism 30 for weighing. This structure enables both shoveling and weighing operations, with the operation mode switched via a linkage mechanism 50. When shoveling, the weighing mechanism 30 is completely disengaged and no longer bears weight, thus protecting it. During weighing, the basin 11 is lifted and detached from the turntable 41, and the weighing mechanism 30 weighs the basin 11 independently without any transmission links or lead wires. This internal weighing method, which separates the basin 11 from the turntable 41 and weighs only the basin 11, results in higher weighing accuracy and solves the problem of inaccurate weighing of pet toilet bowls. Since there are no shearing structures, and the basin 11 is in a raised weighing state and detached from the transmission mechanism 40 when the pet is using it, the basin 11 will not rotate, making the use of the pet toilet bowl safer and avoiding the risk of pinching the pet. The overall structure is simple and easy to install.

[0076] See Figure 4 In some embodiments, during sand shoveling, the turntable 41 drives the basin 11 to rotate in a first direction for sand shoveling, and the turntable 41 drives the basin 11 to rotate in a second direction opposite to the first direction for sand spreading. Specifically, during sand shoveling, the shoveling surface of the sand shovel 20 should face the opposite direction of rotation of the basin 11. Therefore, when the turntable 41 drives the basin 11 to rotate in the first direction, clumps of sand can be naturally shoveled into the sand shovel 20. When the sand shovel 20 is lifted, the sand is filtered, removing fine sand particles and retaining only larger clumps or lumps for later collection. When the turntable 41 drives the basin 11 to rotate in the second direction, the sand in the basin 11 can be leveled using the sand shovel 20 during the rotation of the basin 11, ensuring uniform sand distribution and improving the comfort of the pet. The turntable 41 drives the basin 11 to rotate along the first and second directions respectively to realize the sand shoveling and sand spreading operations. In this way, the two steps of sand shoveling and sand spreading are integrated by rotating the basin 11 along the first and second directions, which is conducive to the optimization of the automated process. It not only reduces manual intervention, but also improves the efficiency of the overall cleaning operation.

[0077] Alternatively, the sand shoveling time can be controlled by setting a timing element (such as a Hall element) so that the sand shovel 20 is switched from the sand shoveling position to the sand pouring position after the sand shoveling set time is reached. This allows the sand shovel 20 to be raised and withdrawn from the basin 11 to perform the sand pouring operation (weighing is performed simultaneously during the sand pouring operation).

[0078] See Figure 3 and Figure 8In the above embodiment, the linkage mechanism 50 includes a cam 51, a lever 53, and a support (not shown). The cam 51 is rotatably mounted on one side of the basin 11, and its first end is connected to the sand shovel 20. The support is fixedly mounted below the basin 11, and the lever 53 is rotatably mounted on the support. The first end of the lever 53 is connected to the weighing mechanism 30. Specifically, the first end of the cam 51 is directly connected to the sand shovel 20. When the cam 51 reciprocates, it can directly transmit power to the sand shovel 20, enabling the sand shovel 20 to quickly and accurately switch between the sand-shoveling position and the sand-pouring position. The coordinated operation of the cam 51 and the lever 53 is the key to realizing the linkage between sand-shoveling and weighing operations. Through the coordinated operation of cam 51 and lever 53, and by utilizing the contour shape of cam 51 and the lever principle, the weighing mechanism 30 can be pressed down and lifted, thereby switching between different working states of shoveling and emptying (weighing), and thus achieving linkage between shoveling and weighing operations. The design of linkage mechanism 50 ensures the separation of shoveling and weighing operations in time. When emptying, the weighing action is initiated through the linkage structure, ensuring that no weighing operation is performed when shoveling, and no shoveling operation is performed when weighing. This ensures both the safety of shoveling and the accuracy of weighing. The design of linkage mechanism 50 greatly optimizes the automated cleaning and weighing process of pet toilet bowls, enabling shoveling and emptying (weighing) operations to automatically switch and efficiently link according to different operational needs, without frequent manual intervention, thus improving the automation and cleaning efficiency of pet toilet bowls.

[0079] In the above embodiments, see Figure 6 When the sand is being shoveled, the second end of the cam member 51 disengages from the second end of the lever member 53, causing the weighing mechanism 30 to fall; see reference Figure 7When the sand is being poured, the second end of the cam 51 abuts against the second end of the lever 53 to lift the weighing mechanism 30. Specifically, when the cam 51 rotates the sand shovel 20 to the sand-shoveling position, the second end of the cam 51 disengages from the second end of the lever 53. This design allows the lever 53 to rotate freely or reset without the force of the cam 51, thereby causing the weighing mechanism 30 connected to the first end of the lever 53 to fall to its lowest position. This disengages the weighing mechanism 30 from the basin 11, preventing interference with the rotation of the basin 11 during sand shoveling. The basin 11 rotates under the drive of the turntable 41, ensuring smooth sand shoveling operations and enabling the sand shovel 20 to accurately and continuously shovel sand. The cam 51 causes the sand shovel 20 to rotate to the sand-shoveling position. When the shovel 20 rotates to the sand-pouring position, the second end of the cam 51 presses down on the second end of the lever 53. This contact relationship allows the cam 51 to push the lever 53 to rotate during rotation. As the lever 53 rotates, it in turn lifts the weighing mechanism 30 connected to the first end of the lever 53. The weighing mechanism 30, along with the basin 11, is lifted, causing the basin 11 to detach from the turntable 41. The basin 11 will not rotate, ensuring the stability and reliability of the weighing. At this time, the weighing mechanism 30 is in contact with the basin 11 and independently weighs the basin 11, accurately detecting the weight of the sand in the basin 11 and improving the weighing accuracy. The linkage mechanism 50, composed of the cam 51 and the lever 53, lifts and lowers the weighing mechanism 30, realizing the automated switching between shoveling and pouring (weighing) sand. This automated process reduces manual intervention and improves the automation level and reliability of the operation.

[0080] See Figure 8 Understandably, the distance between the first end of the lever 53 and the support is less than the distance between the second end of the lever 53 and the support. Utilizing the characteristics of the lever principle, by making the first end of the lever 53 closer to the support, a shorter power arm is formed, while the second end of the lever 53 is farther from the support, forming a longer resistance arm. The shorter power arm means that under the same force applied by the cam 51, the lever 53 will generate a larger rotational torque, thus achieving a greater motion effect with a smaller force. Through this lever arm configuration, the force required for the cam 51 to act on the second end of the lever 53 can be effectively reduced. The cam 51 can achieve the effect of lifting the weighing mechanism 30 with a smaller force, thereby improving overall working efficiency and stability, while reducing the overall size and weight of the structure.

[0081] Continue reading Figure 8It should be noted that the lever 53 includes a first flat section 53a, a second flat section 53b, and a ramp section 53c connecting the first flat section 53a and the second flat section 53b. The second flat section 53b is rotatably mounted on the support. Specifically, the first flat section 53a and the second flat section 53b adopt a straight structure, which allows the lever 53 to remain relatively stable in the starting and ending positions, ensuring the continuity and accuracy of force transmission. The first flat section 53a of the lever 53 is used to abut against the second end of the cam 51 when the sand is being poured, so that the second end of the cam 51 presses down on the first flat section 53a of the lever 53, thereby lifting the second flat section 53b of the lever 53. The second flat section 53b of the lever 53 is rotatably mounted on the support (not shown) via the lever shaft 531 to achieve the pressing down or lifting of the balancing mechanism 30. This installation method not only allows the lever 53 to rotate flexibly when under force, but also enhances the lever 53 through the stable support of the support. 3. Overall stability during dynamic operation ensures the reliability of the force transmission path; the ramp section 53c of the lever 53 serves as a transition connecting the first flat section 53a and the second flat section 53b, cleverly taking into account the difference in assembly height between the cam 51 and the weighing mechanism 30. Through the gradual transition of the ramp section 53c, the force on the first flat section 53a, located at a higher position, is smoothly transmitted to the second flat section 53b, located at a lower position. This amplifies the force transmitted to the second flat section 53b of the lever 53, thereby driving the weighing mechanism 30 to move. The entire lever mechanism structure fully considers the requirements of dynamic response. By optimizing the shape, size, and mounting position of the support of the lever 53, the lever 53 can rotate quickly and smoothly when acted upon by the cam 51, thereby rapidly responding and driving the weighing mechanism 30 to perform corresponding actions.

[0082] For example, see Figure 8 and Figure 9The cam member 51 is hook-shaped and includes a connecting portion 511 and an arc portion 512 connected together. The arc portion 512 is arc-shaped to tangentially abut against the lever member 53. Specifically, the hook-shaped cam member 51 can easily switch between different states with a simple structure. The strip-shaped connecting portion 511 not only facilitates connection with the sand shovel 20 but also ensures the stability and reliability of the connection. The arc portion 512 is arc-shaped, so that when the arc portion 512 abuts against the lever member 53, it can smoothly push the lever member 53 to move, avoiding impact and vibration caused by direct collision and sharp edges. This smooth transition not only reduces vibration and noise but also extends the service life of the cam member 51 and the lever member 53, reducing the risk of wear and damage caused by impact. The tangential abutment design of the arc portion 512 against the lever member 53 not only optimizes the contact method but also reduces the friction area and force between the cam member 51 and the lever member 53, making the cam member 51 push the lever member 53 to move more smoothly and reducing friction loss. Due to the smooth contact and low friction characteristics between the arc portion 512 and the lever 53, the cam 51 can more accurately control the motion trajectory and speed when driving the lever 53 to move, so that the weighing mechanism 30 can complete the action accurately and quickly according to the predetermined requirements.

[0083] Understandable, please refer to Figure 9 The sand shovel 20 is provided with a first engaging portion 21, and the first end of the cam member 51 is provided with a second engaging portion 513, which engages with the first engaging portion 21. Specifically, in this embodiment, the first engaging portion 21 is provided on the side wall of the sand shovel 20, and the second engaging portion 513 can be engaged within the first engaging portion 21. The locking design of the first locking part 21 and the second locking part 513 ensures a stable and reliable connection between the sand shovel 20 and the cam component 51. This locking design, through mechanical locking, effectively prevents the sand shovel 20 from loosening or falling off during operation, ensuring the stability and safety of the sand shovel 20 during operation. At the same time, the locking design makes the installation process of the sand shovel 20 and the cam component 51 simpler and faster. Just align the two and press them gently to achieve connection or disassembly, which can easily and quickly disassemble and assemble the sand shovel 20 and the cam component 51 without cumbersome disassembly and installation steps, thus improving work efficiency. When the sand shovel 20 or the cam component 51 is worn or damaged, the locking design makes the disassembly and replacement of the parts easy and simple, reducing the complexity and cost of maintenance, and reducing downtime caused by component damage.

[0084] In the above embodiments, see Figure 3 and Figure 8The linkage mechanism 50 also includes a shovel drive component 52, which is mounted on the basin frame 10 and connected to the cam component 51 via a rotating shaft to drive the cam component 51 to rotate. Specifically, the shovel drive component 52 directly drives the cam component 51 to reciprocate, thereby causing the sand shovel 20 to switch between the sand-shoveling position and the sand-pouring position, realizing direct power transmission. This method reduces energy loss during transmission and improves the efficiency of power transmission. The shovel drive component 52 can be a drive motor, which has the ability to precisely control the speed and direction. Through signal control, the rotation speed and direction of the cam component 51 can be precisely controlled, so that the sand shovel 20 can accurately reach the position when switching positions. Due to the use of direct drive, the overall structure of the pet toilet bowl can be designed to be more compact. The shovel drive component 52 is directly installed on one side of the basin frame 10 and tightly connected to the cam component 51 via a rotating shaft, eliminating the need for additional transmission devices that occupy space. This compact structural design not only saves space but also makes the entire pet toilet bowl more aesthetically pleasing.

[0085] See Figure 8 In some embodiments, the transmission mechanism 40 further includes a basin drive member 42, a driving drive wheel 43, and a driven drive wheel 44. The driving end of the basin drive member 42 is connected to the driving drive wheel 43, the driving drive wheel 43 is meshed with the driven drive wheel 44, and the driven drive wheel 44 is sleeved on the turntable 41. Specifically, the basin drive member 42 may be a drive motor. The rotation of the turntable 41 is easily achieved through power transmission between the potty driver 42, the active drive wheel 43, and the driven drive wheel 44, ensuring the continuity and stability of power transmission. The precise meshing of the gears reduces slippage and vibration during transmission, further enhancing the continuity of transmission. Compared to other transmission methods, gear transmission has higher transmission efficiency. Due to the direct contact and precise meshing between the gears, friction and energy loss during transmission are reduced, allowing the driven drive wheel 44 to rotate at a predetermined speed and direction, thereby driving the turntable 41 to achieve precise motion control. The compact layout of the potty driver 42, the active drive wheel 43, and the driven drive wheel 44 makes full use of the limited space inside the pet potty. This design not only reduces the overall size and weight of the device but also makes its appearance more concise and aesthetically pleasing. Simultaneously, the compact layout helps reduce vibration and noise transmission during transmission, improving the user experience. Furthermore, due to the use of gear transmission, the reliability of the gear transmission is high, reducing downtime and maintenance costs caused by transmission failures.

[0086] It should be noted that a ring-shaped friction element (not shown) is provided on the top of the turntable 41. During sand shoveling, the basin 11 is connected to the turntable 41 via this friction element. Specifically, in this embodiment, the friction element can be, for example, a silicone pad. The softness and elasticity of the silicone pad not only reduce the noise from direct contact between the basin 11 and the turntable 41, but also reduce vibration during transmission through its damping effect. By setting the friction element, a non-rigid connection between the basin 11 and the turntable 41 is cleverly achieved. This connection method not only utilizes the friction force of the friction element to achieve power transmission, enabling the basin 11 to rotate promptly in response to the rotation of the turntable 41, but also avoids the stress concentration and wear problems that may occur with traditional rigid connections. Power transmission is smoother and gentler, reducing vibration and noise. As the contact component between the basin 11 and the turntable 41, the friction element directly bears the interaction force between the basin 11 and the turntable 41. Its soft material properties can effectively buffer impacts and vibrations, thus protecting the turntable 41. It avoids scratching and wear caused by direct contact between the basin 11 and the turntable 41, which helps extend the service life of the basin 11 and the turntable 41. Combined with the gear transmission and the friction force transmission of the friction element, even if the basin 11 gets stuck (for example, when litter sticks to the wall), the basin 11 will slide between the basin 11 and the turntable 41 due to the friction element, thereby avoiding damage to the transmission mechanism 40 and enhancing the reliability and durability of the pet toilet bowl. By setting up a gear transmission mechanism 40 and combining it with the friction force transmission of the friction element, the basin 11 is driven to rotate. The gear transmission mechanism 40 ensures stable power transmission, and the friction element plays a buffering and protective role, making the transmission mechanism 40 safer.

[0087] See Figure 10 In the above embodiment, the weighing mechanism 30 includes a weighing bracket 31, a weighing sensor 32, and a weighing base 33. The top of the weighing bracket 31 is adapted to the basin 11, the bottom of the weighing bracket 31 is connected to the weighing sensor 32, and the weighing sensor 32 is connected to the weighing base 33. Specifically, the top of the weighing bracket 31 is designed to fit the basin 11, ensuring that the basin 11 can sit stably on the bracket when placed. The weighing bracket 31 supports the basin 11 when in contact with it, which not only reduces the shaking and displacement of the basin 11 during the weighing process, but also distributes the weight by increasing the contact area, ensuring the stability and accuracy of the basin 11 during the weighing process. The weighing sensor 32, as the core component of the weighing mechanism 30, is connected between the weighing bracket 31 and the weighing base 33, and can directly sense the weight changes of the basin 11 and the sand inside it. The weighing base 33 supports the weighing sensor 32, so that the lever 53 can lift the weighing base 33 to raise the entire weighing mechanism 30.

[0088] Understandably, the weighing mechanism 30 also includes multiple guide columns (not shown) vertically arranged below the weighing support 31. The weighing base 33 has multiple guide holes 331, and the guide columns pass through these guide holes 331. Specifically, the weighing base 33 has multiple guide holes 331 evenly distributed, with each guide column corresponding to one of them. To ensure the accuracy of the weighing mechanism 30's movement direction during lifting or lowering, the guide columns are matched with the guide holes 331 on the weighing base 33, providing movement guidance for the weighing base 33 and its weighing sensor 32. This guiding mechanism ensures that the weighing mechanism 30's vertical movement trajectory remains consistent, facilitating the weighing mechanism 30's movement along the vertical direction when the linkage mechanism 50 drives it to lift or lower, ensuring stability and reliability, and improving weighing accuracy. Furthermore, the guiding effect of the guide column makes the weighing mechanism 30 more stable during movement, reducing noise and vibration caused by shaking or tilting.

[0089] See Figure 9 It should be noted that the sand shovel 20 has multiple parallel and spaced screening teeth 22, which are wavy to allow the sand to roll back and forth within the shovel. Specifically, by designing the sand shovel 20 with wavy screening teeth 22, the screening path is increased, as is the contact area and friction between the sand and the screening teeth 22. This allows sand clumps to roll back and forth within the shovel, promoting interaction between sand particles and increasing the number of contacts between the sand and the screening teeth 22. This design helps to better separate sand from clumps or impurities, facilitating the filtration of clean sand and achieving a finer screening effect, thus avoiding waste sand. The wavy screening teeth 22 guide the sand to form a specific flow trajectory within the shovel 20, making the sand roll more evenly and smoothly. This design helps reduce sand accumulation and clogging, improving sand utilization. Due to the efficient screening by the screening teeth 22 and the improved sand flowability, clumps and impurities in the basin can be separated more quickly.

[0090] See Figure 2 and Figure 3 Understandably, the pet toilet bowl also includes a litter collection bucket 60 with an open top, mounted on the bowl frame 10 and adjacent to the litter shovel 20, configured to collect litter poured out by the litter shovel 20 when it reaches the litter outlet. Specifically, by placing the litter collection bucket 60 close to the litter shovel 20, it can immediately and effectively collect any clumps of litter poured out by the litter shovel 20 when it reaches the litter outlet. This immediate collection design prevents clumps of litter from scattering or remaining around the bowl, reducing the user's extra cleaning work. By providing the litter collection bucket 60 to collect clumps of litter poured out by the litter shovel 20 when it reaches the litter outlet, the convenience and efficiency of the cleaning process are improved, maintaining a clean environment.

[0091] See Figure 1 In the above embodiment, the pet toilet bowl also includes an open-top outer shell 70, which has a receiving cavity. The bowl body 11, weighing mechanism 30, transmission mechanism 40, linkage mechanism 50, and litter collection bucket 60 are disposed within the receiving cavity. Specifically, the outer shell 70 forms a semi-enclosed space, providing additional protection for each mechanism and component and reducing the risk of damage due to accidental collisions or falls, thus helping to extend the service life of the pet toilet bowl. The open-top design of the outer shell 70 allows pets to freely enter and exit the pet toilet bowl, while also partially concealing the interior of the pet toilet bowl and enhancing its aesthetics.

[0092] The specific working process of the pet toilet bowl is as follows: After the pet finishes using the toilet, the sand shovel 20 moves to the sand-shoveling position, so that the sand shovel 20 extends into the bowl 11, and the cam 51 disengages from the lever 53, driving the weighing mechanism 30 to disengage from the bowl 11. The bowl 11 is connected to the turntable 41 through the friction element and rotates in the first direction under the action of the transmission mechanism 40, so that the sand is filtered by the sand shovel 20. When the sand-shoveling operation reaches the set time, the shovel drive 52 drives the sand shovel 20 to lift and exit the bowl 11 until it moves to the sand-pouring position. The sand clumps roll back and forth in the sand shovel 20 to filter out the clean sand again, and the sand clumps are poured into the sand collection bucket 60. At the same time, the cam 51 and the lever 53 abut against each other, driving the weighing mechanism 30 and the bowl 11 to be lifted, the bowl 11 disengages from the turntable 41, the bowl 11 does not rotate, and the weighing mechanism 30 is in close contact with the bowl 11 to independently weigh the bowl 11.

[0093] In summary, the pet litter box provided by this utility model connects the litter shovel 20 and the weighing mechanism 30 via a linkage mechanism 50. When shoveling litter, the bowl 11 is detached from the weighing mechanism 30 and rotates under the drive of the turntable 41 to perform litter shoveling. When emptying litter, the linkage mechanism 50 initiates the weighing action, detaching the bowl 11 from the turntable 41 and engaging with the weighing mechanism 30 for weighing. Thus, both litter shoveling and weighing functions are achieved. This detachable internal weighing system eliminates any transmission links or lead wires, allowing only the bowl 11 to be independently weighed. The weighing accuracy is higher, solving the problem of inaccurate weighing of pet toilet bowls; and when the pet is using it, the bowl 11 is in a raised weighing state and is detached from the transmission mechanism 40, making the use of the pet toilet bowl safer and avoiding the risk of pinching; the overall structure is simple and easy to install; furthermore, by setting a gear-type transmission mechanism 40 and combining it with the friction force transmission of the friction parts at the bottom of the bowl 11, the bowl 11 is driven to rotate, making the transmission mechanism 40 safer; by setting a sand shovel 20 with wave-shaped sand screening teeth 22, the sand screening path is increased, making it easier to filter out clean sand and avoid waste sand.

[0094] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A pet litter box, characterized in that, include: A basin stand, on which a basin body is rotatably mounted; A sand shovel is mounted on the basin frame and can rotate between a sand shoveling position and a sand pouring position. When in the sand shoveling position, the sand shovel extends into the basin body, and when in the sand pouring position, the sand shovel is lifted and withdrawn from the basin body. A weighing mechanism is located below the basin body; A transmission mechanism includes a turntable disposed below the basin body and configured to drive the basin body to rotate when in the sand-shoveling position; as well as The linkage mechanism connects the sand shovel and the weighing mechanism respectively. When shoveling sand, the linkage mechanism disengages the weighing mechanism from the basin, and the basin is connected to the turntable via transmission. When emptying sand, the linkage mechanism lifts the weighing mechanism to disengage it from the turntable, and the weighing mechanism is in contact with the basin for weighing.

2. The pet toilet bowl according to claim 1, characterized in that, When shoveling sand, the turntable drives the basin to rotate in a first direction to perform sand shoveling operations, and the turntable drives the basin to rotate in a second direction opposite to the first direction to perform sand spreading operations.

3. The pet toilet bowl according to claim 1, characterized in that, The linkage mechanism includes a cam, a lever, and a support. The cam is rotatably mounted on one side of the basin, and the first end of the cam is connected to the sand shovel. The support is located below the basin, and the lever is rotatably mounted on the support. The first end of the lever is connected to the weighing mechanism.

4. The pet toilet bowl according to claim 3, characterized in that, When the sand is being shoveled, the second end of the cam component disengages from the second end of the lever component, causing the weighing mechanism to fall; when the sand is being poured, the second end of the cam component abuts against the second end of the lever component, causing the weighing mechanism to rise.

5. The pet toilet bowl according to claim 3, characterized in that, The distance between the first end of the lever and the support is less than the distance between the second end of the lever and the support.

6. The pet toilet bowl according to claim 3, characterized in that, The lever component includes a first flat section, a second flat section, and a ramp section connecting the first flat section and the second flat section, wherein the second flat section is rotatably mounted on the support.

7. The pet toilet bowl according to claim 3, characterized in that, The cam component is hook-shaped and includes a connecting portion and an arc portion connected together. The arc portion is arc-shaped to tangentially abut against the lever component.

8. The pet toilet bowl according to claim 3, characterized in that, The sand shovel is provided with a first locking part, and the first end of the cam is provided with a second locking part, which engages with the first locking part.

9. The pet toilet bowl according to claim 3, characterized in that, The linkage mechanism also includes a shovel drive component, which is mounted on the basin frame and connected to the cam component via a rotating shaft to drive the cam component to rotate.

10. The pet toilet bowl according to claim 1, characterized in that, The transmission mechanism further includes a basin drive component, a drive wheel, and a driven wheel. The drive end of the basin drive component is connected to the drive wheel, the drive wheel is meshed with the driven wheel, and the driven wheel is sleeved on the turntable.

11. The pet toilet bowl according to claim 1 or 10, characterized in that, The top of the turntable is provided with an annular friction element, and the basin is connected to the turntable through the friction element when the sand is being shoveled.

12. The pet toilet bowl according to claim 1, characterized in that, The weighing mechanism includes a weighing bracket, a weighing sensor, and a weighing base. The top of the weighing bracket is adapted to the basin, the bottom of the weighing bracket is connected to the weighing sensor, and the weighing sensor is connected to the weighing base.

13. The pet toilet bowl according to claim 12, characterized in that, The weighing mechanism also includes a plurality of guide columns vertically arranged below the weighing support, and a plurality of guide holes are provided on the weighing base, with the guide columns passing through the guide holes.

14. The pet toilet bowl according to claim 1, characterized in that, The sand shovel has multiple sand-screening teeth arranged side by side and spaced apart. The sand-screening teeth are wavy to make the sand roll back and forth in the sand shovel.

15. The pet toilet bowl according to claim 1, characterized in that, The pet toilet bowl also includes a litter collection bucket with an open top, which is placed on the bowl stand and adjacent to the litter shovel, and is configured to collect the litter poured out by the litter shovel when it is in the litter pouring position.

16. The pet toilet bowl according to claim 15, characterized in that, The pet toilet bowl also includes an open-top outer shell with a receiving cavity, and the bowl body, weighing mechanism, transmission mechanism, linkage mechanism and sand collection bucket are disposed within the receiving cavity.

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