Weighing sensing device and smart cat litter box comprising same
By improving the installation structure of the weighing sensor and adopting a deformation zone bracket and an external bracket design, the problem of decreased sensitivity caused by impurity accumulation in the existing technology has been solved, achieving the effects of simplified installation and improved sensitivity.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-04-02
AI Technical Summary
The existing method of fixing the weighing sensor in smart litter boxes easily leads to the accumulation of dust and impurities, affecting sensitivity, and the complex structure makes it difficult to clean effectively.
The design incorporates a deformation zone bracket and an outer bracket, along with screw holes and locking teeth, combined with positioning blocks, to simplify the installation of the weighing sensor module and prevent the accumulation of impurities. Impurities are automatically removed through minute changes in relative position.
The installation process was simplified, the impact of impurities on the weighing induction device was reduced, and the sensitivity and reliability of the device were improved.
Smart Images

Figure CN2025076154_02042026_PF_FP_ABST
Abstract
Description
A weighing induction device and a smart litter box comprising the same TECHNICAL FIELD
[0001] The utility model relates to pet equipment technical field, especially a kind of smart litter box including weighing induction device. BACKGROUND
[0002] The utility model discloses a litter box, which refers to a device for collecting excrement of pets such as cats and dogs. The operation of cleaning litter is labor-intensive, and the user experience of manually cleaning litter is not good. Some litter boxes on the market can automatically clean litter, reducing the workload of manual cleaning. The smart litter box that automatically cleans litter needs to be able to monitor and identify the action of pets entering and defecating, so as to determine the start and stop of the cleaning program. There are many monitoring methods, and the monitoring method based on a weighing inductor is a widely used method, such as the scheme disclosed in Chinese patent 201910997843.6.
[0003] However, in the prior art, the typical fixing method of the weighing inductor is shown in FIG. 1. The weighing inductor assembly is provided with a pawl, which passes through the upper surface of the base from bottom to top to preliminarily fix the weighing inductor, and then the weighing inductor assembly is fixed on the base from top to bottom with a screw. In this design, there is a gap A between the pawl and the upper surface of the base, which allows cat litter particles, dust, and other debris to fall into the weighing inductor assembly from the gap A. The accumulated dust and impurities cannot be removed automatically, which affects the sensitivity of the weighing inductor. Moreover, the structure of the existing design is too complex.
[0004] Utility model content
[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a smart litter box comprising: a main body, a base; a weighing induction device is arranged below the base; the weighing induction device comprises a deformation zone support, an outer support and a weighing induction module; the deformation zone support comprises an upper part and a lower part, the diameter of the upper part of the deformation zone support is larger than the diameter of the lower part of the deformation zone support; a plurality of screw holes and pawls are arranged on the outer support; a through hole is arranged in the middle of the outer support, the diameter of the through hole is larger than the diameter of the lower part of the deformation zone support, but smaller than the diameter of the upper part of the deformation zone support; the weighing induction module comprises a deformation zone.
[0006] Preferably, in the above-mentioned smart litter box, the outer support further comprises a positioning block.
[0007] The utility model discloses still provide a kind of weighing sensing device, comprising: deformation area support, outer support and weighing sensing module;The deformation area support includes two parts of upper and lower, the caliber of deformation area support upper part is greater than the caliber of deformation area support lower part;Several screw holes and paw are provided on the outer support;The middle of the outer support is provided with through-hole, the caliber of the through-hole is greater than the caliber of deformation area support lower part, but less than the caliber of deformation area support upper part;The weighing sensing module includes deformation area.
[0008] Preferably, in the above weighing sensing device, the outer support further comprises a positioning block.
[0009] The intelligent cat litter box of the utility model adopts the newly designed weighing sensing device, which is not only easy to install, but also avoids the adverse effects of dust accumulation on the sensing device, thereby having high practical value. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 is a schematic diagram of the internal structure of the intelligent cat litter box of the utility model;
[0011] Fig. 2 is an exploded view of the weighing sensing device 3 of the utility model;
[0012] Fig. 3 is a bottom view of the weighing sensing device of the utility model in an assembled state. DETAILED DESCRIPTION
[0013] The embodiments of the utility model will be described below through specific examples. Those skilled in the art can easily understand other advantages and effects of the utility model from the disclosure of the specification. The utility model can also be implemented or applied in different ways, and various modifications or changes can be made based on different viewpoints and applications without departing from the spirit of the utility model.
[0014] Please refer to the drawings. It should be noted that the drawings provided in the embodiments only illustrate the basic concept of the utility model in a schematic manner, and the drawings only show the components related to the utility model, not the number, shape and size of the components during actual implementation. The shape, number and proportion of each component during actual implementation can be changed arbitrarily, and the layout pattern of the components can be more complex. Unless otherwise specified, the words "up", "down", "left", "right" and other orientation words in this specification are based on the perspective of the observer of the drawings.
[0015] Fig. 1 is a schematic diagram of an embodiment of the utility model. The intelligent cat litter box of the utility model comprises a main body 1 and a base 2. At least one weighing sensing device 3 is arranged below the base 2.
[0016] Referring to Fig. 2, the weighing sensing device 3 comprises a deformation zone support 31, an outer support 32 and a weighing sensing module 33.
[0017] The deformation zone support 31 comprises an upper part and a lower part, and the upper part has a larger diameter than the lower part. The outer support 32 is provided with screw holes 321 and clamping teeth 322, and a through hole 323 is arranged in the middle of the outer support 32. The diameter of the through hole 323 is slightly larger than the lower part of the deformation zone support 31, but smaller than the upper part of the deformation zone support 31. In order to facilitate the quick installation of the outer support, a positioning block 324 can be arranged outside the outer support, so as to facilitate positioning when the weighing sensing device is fixed to the base. The weighing sensing module 33 comprises a deformation zone 331.
[0018] During assembly, the deformation zone 331 of the weighing sensing module is downwardly abutted against the upper end of the deformation zone support 31, and then the lower part of the deformation zone support 31 is passed through the through hole 323, and the weighing sensing module 33 and the deformation zone support 32 are jointly pressed downward until the clamping teeth 322 clamp the upper part of the weighing sensing module 33. Fig. 3 shows a schematic view of the weighing sensing device 3 after assembly. Finally, the weighing sensing device 3 is fixed to the base 2 from bottom to top by using fixing screws.
[0019] The above design has the following advantages: no hole needs to be opened on the upper surface of the base, and all the gaps of the weighing sensing device are directed downward. Moreover, during use, the deformation zone support 31 and the outer support 32 continuously generate slight relative position changes, so that even if a small amount of impurities enter the gap between the components of the weighing sensing device, the impurities will be shaken off during use, thereby greatly reducing the influence of dust and impurities on the weighing sensing device.
[0020] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.
Claims
1. An intelligent cat litter box, characterized by, Include: The main body, base; The base is provided below the weighing sensing device; The weighing sensing device includes a deformation zone support, an outer support and a weighing sensing module; The deformation zone support includes upper and lower two parts, the caliber of the upper part of the deformation zone support is larger than the caliber of the lower part of the deformation zone support; The outer support is provided with a plurality of screw holes and clamping teeth; The middle of the outer support is provided with a through hole, the caliber of the through hole is larger than the caliber of the lower part of the deformation zone support, but smaller than the caliber of the upper part of the deformation zone support; The weighing sensing module includes a deformation zone.
2. The smart litter box of claim 1, wherein, The outer support further includes a positioning block.
3. A load sensing device, characterized by, Include: The deformation zone support, the outer support and the weighing sensing module; The deformation zone support includes upper and lower two parts, the caliber of the upper part of the deformation zone support is larger than the caliber of the lower part of the deformation zone support; The outer support is provided with a plurality of screw holes and clamping teeth; The middle of the outer support is provided with a through hole, the caliber of the through hole is larger than the caliber of the lower part of the deformation zone support, but smaller than the caliber of the upper part of the deformation zone support; The weighing sensing module includes a deformation zone.
4. The load sensing device of claim 3, wherein, The outer support further includes a positioning block.
Citation Information
Patent Citations
Weight scale device and animal toilet
CN108471730A
Weighing sensor for cat litter basin
CN211576306U
Automatic weighing and positioning device for cat litter basin
CN213153377U
Internal weighing automatic cat litter basin
CN219781184U
Device for schedule management and toilet training ofanimal
KR1020050006869A