Weighing module for an intelligent cat toilet

By employing an overlapping structure of the base assembly and an elastic arm design of the weighing sensor in the smart cat toilet, combined with the precise insertion of the positioning structure and the buffer stop, the instability and installation complexity of existing smart cat toilet weighing modules are solved, achieving high-precision and long-life weighing results.

CN224499661UActive Publication Date: 2026-07-14SHANGHAI LIANCHONG INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI LIANCHONG INTELLIGENT TECH CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-14

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    Figure CN224499661U_ABST
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Abstract

The utility model belongs to pet supplies technical field, concretely relates to a kind of weighing module of intelligent cat toilet, including base assembly, weighing structure and positioning structure;The base assembly includes upper half and lower half, the upper half and lower half are set using the structure of setting on edge;Weighing structure and positioning structure are set between the upper half and lower half.The utility model is arranged in the base assembly four corners by weighing structure, combined with the elastic arm design of weighing foot support bracket, effectively improve weighing accuracy;When the upper half is deflected when cat is active in cat toilet, arc shape elastic arm will occur elastic deformation, offset the moment of force generated by deflection, ensure that the vertical pressure stability of weighing sensor, avoid the weighing error caused by uneven stress.
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Description

Technical Field

[0001] This utility model belongs to the field of pet supplies technology, specifically, it relates to a weighing module for an intelligent cat litter box. Background Technology

[0002] As people's living standards improve, pet cats are becoming increasingly popular. Smart litter boxes, as a convenient device for caring for pets, are constantly being improved. Weighing is an important function of smart litter boxes; by weighing the cat, one can monitor its weight changes and thus keep track of its health.

[0003] However, existing smart litter box weighing modules have many shortcomings. Some weighing modules have unreasonable structural designs, leading to inaccurate weighing and susceptibility to external interference; some weighing modules are complex to install and have poor stability, easily shaking during use by cats, affecting weighing accuracy; still others lack effective support structures, which not only affects weighing performance but may also shorten the device's lifespan. Therefore, a new type of smart litter box weighing module is needed to solve these problems. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a weighing module for an intelligent cat toilet.

[0005] According to the present invention, a weighing module for an intelligent cat toilet includes a base assembly, a weighing structure, and a positioning structure. The base assembly includes an upper part and a lower part, which are arranged with an overlapping structure. The weighing structure and the positioning structure are disposed between the upper part and the lower part. The weighing structure is arranged at the four corners of the base assembly, and the positioning structure is arranged on the left and right sides of the base assembly.

[0006] In a preferred embodiment: the weighing structure includes a weighing sensor, a weighing foot support pad, a weighing foot support bracket, a weighing foot, and a support foot; the weighing foot is fixedly installed at the bottom four corners of the upper part, and the weighing sensor is fixedly installed at the bottom of the weighing foot; the support foot is fixedly installed at the top four corners of the lower part, the weighing foot support bracket is fixedly installed at the top of the support foot, and the weighing foot support pad is provided at the top center of the weighing foot support bracket.

[0007] In a preferred embodiment: the foot support pad is used to provide support.

[0008] In a preferred embodiment: the foot support bracket includes a support column, an elastic arm, and a connecting arc arm.

[0009] In a preferred embodiment: the elastic arm is in the shape of an arc, one end of the plurality of elastic arms is fixedly connected to the support column, and the other end of the plurality of elastic arms is fixed in series by the connecting arc arm.

[0010] In a preferred embodiment: at least three elastic arms are arranged in a ring around the top periphery of the support column. When the upper part is deflected by the load cell on the support column, the elastic arms can perform elastic deformation to ensure that the load remains unchanged.

[0011] In a preferred embodiment: the positioning structure includes a positioning foot, a positioning bracket foot, a positioning groove, and a weighing stop.

[0012] In a preferred embodiment: the positioning feet are installed on both the left and right sides of the bottom of the upper part; the positioning bracket foot has a positioning groove on its top, and the positioning foot is inserted into the positioning groove.

[0013] In a preferred embodiment, the positioning foot is convex.

[0014] In a preferred embodiment: the weighing stop is fitted on the top of the positioning foot.

[0015] In a preferred embodiment: a gap is provided between the weighing stop and the top surface of the positioning groove.

[0016] In a preferred embodiment: the gap between the weighing stop and the top surface of the positioning groove is used to prevent mechanical locking.

[0017] In a preferred embodiment, the overlapping structure used for the upper and lower halves is used to achieve a stable connection between the two.

[0018] In a preferred embodiment: the load cell is used to detect the pressure transmitted by the weighing foot to achieve the weighing function.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This utility model effectively improves weighing accuracy by arranging the weighing structure at the four corners of the base assembly and combining it with the elastic arm design of the weighing foot support bracket. When the cat moves in the litter box and causes the upper part to deflect, the bow-shaped elastic arm will undergo elastic deformation to offset the torque generated by the deflection, ensuring that the vertical pressure on the weighing sensor is stable and avoiding weighing errors caused by uneven force.

[0021] 2. The weighing module adopts an overlapping structure to connect the upper and lower parts of the base, which, together with the positioning structures on the left and right sides, enhances the overall stability. The precise insertion of the positioning feet into the positioning groove limits horizontal displacement, and the gap between the umbrella-shaped weighing stop and the top surface of the positioning groove prevents mechanical locking, ensuring smooth pressure transmission. The synergistic effect of each component makes installation more convenient, and the buffer structure reduces component wear and extends service life, taking into account both structural stability and equipment durability, and meeting the needs of long-term stable operation of smart cat toilets. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a front view of the intelligent cat toilet of this utility model;

[0024] Figure 2 This is a schematic diagram of the upper and lower parts of the base assembly of the intelligent cat toilet of this utility model.

[0025] Figure 3 This is a bottom view of the upper half of the base assembly of the intelligent cat toilet of this utility model.

[0026] Figure 4 For the present utility model Figure 3 Cross-sectional view of CC in the middle;

[0027] Figure 5 For the present utility model Figure 4 Enlarged view at point D;

[0028] Figure 6 This is a schematic diagram of the weighing structure of this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the weighing foot support pad of this utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the weighing foot support bracket of this utility model;

[0031] Figure 9 This utility model Figure 4 Enlarged view at point E in the middle;

[0032] The following are the labeling elements in the figure:

[0033] Detailed Implementation

[0034] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0035] like Figure 1-3 As shown, this utility model discloses a weighing module for an intelligent cat toilet, including a base assembly 1, a weighing structure 13, and a positioning structure 14. The base assembly 1 includes an upper part 11 and a lower part 12. The upper part 11 and the lower part 12 are set with an overlapping structure, which can stably connect the upper part 11 and the lower part 12 and provide a stable foundation for the entire weighing module. The weighing structure 13 and the positioning structure 14 are set between the upper part 11 and the lower part 12. The weighing structure 13 is arranged at the four corners of the base assembly 1 to ensure the uniformity and accuracy of weighing. The positioning structure 14 is arranged on the left and right sides of the base assembly 1 to achieve accurate positioning of the upper part 11 and the lower part 12.

[0036] like Figure 4-7 As shown, the weighing structure 13 includes a weighing sensor 131, a foot support pad 132, a foot support bracket 133, a foot 134, and a support foot 135. The foot 134 is fixedly installed at the bottom four corners of the upper part 11, and the weighing sensor 131 is fixedly installed at the bottom of the foot 134. The weighing sensor 131 can accurately detect the pressure transmitted by the foot 134. The support foot 135 is fixedly installed at the top four corners of the lower part 12, and the foot support bracket 133 is fixedly installed at the top of the support foot 135. The foot support pad 132 is provided at the top center of the foot support bracket 133. The foot support pad 132 is made of a hard and smooth material and is used to provide support.

[0037] like Figure 8 As shown, the weighing foot support bracket 133 includes a support column 1331, elastic arms 1332, and connecting arc arms 1333. Three elastic arms 1332 are arranged in a ring around the top periphery of the support column 1331. The elastic arms 1332 are bow-shaped and have good elastic deformation capability. One end of the multiple elastic arms 1332 is fixedly connected to the support column 1331, and the other end of the multiple elastic arms 1332 is fixed in series by the connecting arc arms 1333. Thus, when the upper part 11 is subjected to load by the weighing sensor 131 on the support column 1331 and deflection occurs, the elastic arms 1332 can perform elastic deformation to ensure that the heavy load does not change and ensure the accuracy of weighing.

[0038] like Figure 9As shown, the positioning structure 14 includes a positioning foot 141, a positioning bracket foot 142, a positioning groove 143, and a weighing stop 144. The positioning feet 141 are installed on the left and right sides of the bottom of the upper part 11. The positioning feet 141 are convex. The top of the positioning bracket foot 142 is provided with a positioning groove 143. The positioning feet 141 and the positioning groove 143 are inserted into each other to realize the positioning between the upper part 11 and the lower part 12. The top of the positioning foot 141 is fitted with a weighing stop 144. A gap is provided between the weighing stop 144 and the top surface of the positioning groove 143. This gap can effectively prevent mechanical locking and ensure the normal operation of the equipment.

[0039] Working principle

[0040] When this invention is in operation, when a cat enters the litter box, its weight load is applied to the upper half 11 of the base assembly 1. The upper half 11 transmits the pressure to the four bottom corners of the weighing feet 134, which then transmit the pressure to the load cell 131 at its bottom. The pressure is then applied via the load cell 131 to the weighing foot support bracket 133 supported by the four corner support feet 135 at the top of the lower half 12. The weighing foot support pad 132 at the top center of the weighing foot support bracket 133 first contacts the load cell 131. If the upper half 11 deflects slightly due to the cat's movement, the bow-shaped elastic arms 1332 in the weighing foot support bracket 133 will undergo elastic deformation. One end of the three ring-shaped elastic arms 1332 is fixed to the support column 1331, and the other end is connected in series through the connecting arc arm 1333. This absorbs the torque generated by the deflection, ensuring that the vertical pressure acting on the load cell 131 is stable and that the weighing load remains unchanged. Meanwhile, in the positioning structure 14, the positioning foot 141 at the bottom of the upper part 11 and the positioning groove 143 at the top of the positioning bracket foot 142 are inserted into each other, which restricts the horizontal displacement of the upper part 11 and the lower part 12, ensuring the stability of the force transmission path of the weighing structure 13. The gap between the weighing stop 144 sleeved on the top of the positioning foot 141 and the top surface of the positioning groove 143 can avoid mechanical locking and ensure normal transmission of force in the vertical direction. Finally, the weighing sensor 131 converts the pressure into an electrical signal output to complete the weight measurement. The upper part 11 and the lower part 12 of the base assembly 1 form a stable foundation through the overlapping structure, providing support for the collaborative work of each component.

[0041] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A weighing module for an intelligent cat litter box, characterized in that, The system includes a base assembly (1), a weighing structure (13), and a positioning structure (14). The base assembly (1) includes an upper part (11) and a lower part (12), which are arranged with overlapping edges. The weighing structure (13) and the positioning structure (14) are arranged between the upper part (11) and the lower part (12). The weighing structure (13) is arranged at the four corners of the base assembly (1), and the positioning structure (14) is arranged on the left and right sides of the base assembly (1).

2. The weighing module for the intelligent cat litter box according to claim 1, characterized in that, The weighing structure (13) includes a weighing sensor (131), a weighing foot support pad (132), a weighing foot support bracket (133), a weighing foot (134), and a support foot (135). The weighing foot (134) is fixedly installed at the bottom four corners of the upper part (11), and the weighing sensor (131) is fixedly installed at the bottom of the weighing foot (134). The support foot (135) is fixedly installed at the top four corners of the lower part (12), and the weighing foot support bracket (133) is fixedly installed at the top of the support foot (135). The weighing foot support pad (132) is provided at the top center of the weighing foot support bracket (133).

3. The weighing module for the intelligent cat litter box according to claim 2, characterized in that, The foot support pad (132) is made of a hard, smooth material and is used to provide support.

4. The weighing module for the intelligent cat litter box according to claim 2, characterized in that, The foot support bracket (133) includes a support column (1331), an elastic arm (1332), and a connecting arc arm (1333).

5. The weighing module for the intelligent cat litter box according to claim 4, characterized in that, The elastic arm (1332) is in the shape of an arc. One end of the multiple elastic arms (1332) is fixedly connected to the support column (1331), and the other end of the multiple elastic arms (1332) is fixed in series by the connecting arc arm (1333).

6. The weighing module for the intelligent cat litter box according to claim 5, characterized in that, At least three elastic arms (1332) are arranged in a ring around the top periphery of the support column (1331). When the upper part (11) is subjected to pressure on the support column (1331) by the weighing sensor (131), it deflects and can be elastically deformed by the elastic arms (1332) to ensure that the weighing load remains unchanged.

7. The weighing module for the intelligent cat litter box according to claim 1, characterized in that, The positioning structure (14) includes a positioning foot (141), a positioning bracket foot (142), a positioning groove (143), and a weighing stop (144).

8. The weighing module for the intelligent cat litter box according to claim 7, characterized in that, The upper part (11) has positioning feet (141) installed on both the left and right sides of its bottom; the top of the positioning bracket foot (142) has a positioning groove (143) and the positioning foot (141) is inserted into the positioning groove (143).

9. The weighing module for the intelligent cat litter box according to claim 8, characterized in that, The positioning foot (141) is convex.

10. The weighing module for the intelligent cat litter box according to claim 9, characterized in that, The weighing stop (144) is fitted onto the top of the positioning foot (141).

11. The weighing module for the intelligent cat litter box according to claim 10, characterized in that, A gap is provided between the weighing stop (144) and the top surface of the positioning groove (143).

12. The weighing module for the intelligent cat litter box according to claim 11, characterized in that, The gap between the weighing stop (144) and the top surface of the positioning groove (143) is used to prevent mechanical locking.

13. The weighing module for the intelligent cat litter box according to claim 1, characterized in that, The overlapping structure used in the upper part (11) and the lower part (12) is used to achieve a stable connection between the two.

14. The weighing module for the intelligent cat litter box according to claim 2, characterized in that, The weighing sensor (131) is used to detect the pressure transmitted by the weighing foot (134) to realize the weighing function.