Weighing sensor device
By designing a combination of load-bearing flexible joint base plate, base plate, load cell and limiting structure, the problems of insufficient weighing accuracy and sealing performance caused by the suspension of motor cable were solved, and a high-precision and sealed load cell device was realized.
Patent Information
- Application Number
- CN202520099706.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-01-13
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-16
AI Technical Summary
In existing technologies, the long suspended section of the motor cable affects the weighing accuracy, and the sealing performance of the weighing sensor module is insufficient, failing to meet the requirements for high precision and cleaning.
A weighing sensor device was designed, which adopts a load-bearing flexible base plate, a base plate, a weighing sensor, a load-bearing base plate and a limiting structure. The motor cable is connected through a flexible assembly and a sealing structure. Combined with a silicone dustproof film and a sealing cover, the motor cable is sealed and waterproofed, the displacement of the sensor is limited and interference with the weighing accuracy is avoided.
This improves weighing accuracy, ensures the sensor is not damaged during cleaning, and meets the requirements for high precision and sealing performance.
Smart Images

Figure CN223769622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weighing equipment technology, and in particular to a weighing sensor device. Background Technology
[0002] Weighing modules are commonly used in process weighing in industries such as chemical, pharmaceutical, and food. They are installed at the bottom of the corresponding weighing platform to perform the weighing. With continuous societal development, the requirements for weighing accuracy are increasing. Under normal circumstances, the motor is mounted on the weighing platform, and the motor cable is directly connected to the electrical box. The relatively long suspended section of the motor cable affects weighing accuracy. Furthermore, under current technological conditions, some applications require rinsing the checkweigher. Therefore, the sealing performance requirements for the checkweigher sensor module are becoming increasingly stringent. Against this backdrop, it is necessary to address the issues of the motor cable's impact on weighing accuracy and its cleaning capabilities. Utility Model Content
[0003] In view of the deficiencies in the prior art, this utility model provides a weighing sensor device to solve the problems mentioned in the background art.
[0004] This utility model provides a weighing sensor device, comprising:
[0005] A load-bearing flexible joint base plate with mounting through holes;
[0006] The base plate is disposed within the mounting through hole;
[0007] The weighing sensor includes a fixed end and a force-receiving end, wherein the fixed end is fixed to a base plate;
[0008] A load-bearing seat plate, the lower end of which is fixedly installed at the force-bearing end, and the upper end is connected to a load-bearing circular joint.
[0009] A flexible support assembly is disposed on one side of the weighing sensor; one end of the flexible support assembly is fixed to the load-bearing flexible joint base plate, and the other end is fixed to the base plate;
[0010] The limiting structure includes a concave limiting end fixedly connected to the load-bearing base plate and a limiting plate fixedly connected to the base plate at one end. The other end of the limiting plate is disposed inside the concave limiting end and is used for upper and lower limiting of the weighing sensor.
[0011] Preferably, the flexible cable assembly includes a flexible cable mounting base, a flexible cable, and a flexible cable connector; one end of the flexible cable assembly is fixed to the load-bearing flexible connector base plate and connected to the inlet end of the motor cable, and the other end is fixed to the base plate and connected to the outlet end of the motor cable, with a flexible cable used for transition in the middle.
[0012] Preferably, a silicone dustproof film is provided below the load-bearing flexible joint base plate and the base plate.
[0013] Preferably, the lower end of the load-bearing flexible joint base plate is provided with an inner flange pressure ring and an outer flange pressure ring for fixing the silicone dustproof film. The outer flange pressure ring is fixedly connected to the load-bearing flexible joint base plate, and the inner flange pressure ring is fixedly connected to the base plate.
[0014] Preferably, it also includes a sealing cover disposed on the load-bearing flexible joint base plate.
[0015] Preferably, a first sealing ring and a sealing ring pressure plate are provided at the connection between the load-bearing flexible joint base plate and the sealing cover.
[0016] Preferably, the load-bearing circular joint is disposed above the sealing cover.
[0017] Preferably, a second sealing ring is provided between the load-bearing circular joint and the sealing cover.
[0018] Preferably, an aviation plug and a waterproof connector are connected to the lower part of the load-bearing flexible joint base plate for cable entry and exit and sealing.
[0019] Beneficial effects
[0020] This utility model provides a weighing sensor device. The load-bearing flexible base plate, base plate, and load-bearing circular connector are integrated into one structure, avoiding the impact of the floating of the load-bearing flexible base plate on the weighing accuracy. When there is excessive downward pressure or upward tension, the concave limiting end of the limiting structure and the limiting plate can limit the vertical displacement of the sensor, thus playing a protective role. The load-bearing flexible base plate and the base plate are connected by a silicone dustproof film and a flexible cable assembly. One end of the flexible cable assembly is fixed to the load-bearing flexible base plate and connected to the motor cable inlet, and the other end is fixed to the base plate and connected to the motor cable outlet (power box). A flexible cable is used for transition in the middle, which solves the problem of cable interference with weighing accuracy in the motor power box section. The aviation plug and waterproof connector, the sealing cover and the load-bearing flexible base plate and the load-bearing circular connector are connected by a first sealing ring and a second sealing ring, which can effectively achieve a sealing and waterproof effect, solving the problem of washing the weighing sensor device. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 for Figure 1 A schematic diagram of the front view of the embodiment;
[0023] Figure 3 for Figure 1 A top view of the structure of the embodiment;
[0024] Figure 4 This is a three-dimensional structural diagram of the present invention.
[0025] Figure 5 for Figure 4 A schematic diagram of the main structure of the embodiment;
[0026] The components include: 1. Base plate; 2. Load-bearing flexible joint base plate; 3. Weighing sensor; 4. Load-bearing seat plate; 5. Limiting structure; 6. Limiting plate; 7. Flexible strip assembly; 8. Sealing ring pressure plate; 9. Silicone dustproof film; 10. Outer flange pressure ring; 11. Inner flange pressure ring; 12. Sealing cover; 13. First sealing ring; 14. Second sealing ring; 15. Aviation plug; 16. Waterproof connector; 17. Load-bearing round joint seat. Detailed Implementation
[0027] 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 modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.
[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] Reference Figures 1 to 5 This is a specific embodiment of the present utility model.
[0032] This utility model provides a weighing sensor device, including a load-bearing flexible base plate 2, a base plate 1, a weighing sensor 3, a load-bearing seat plate 4, a flexible support assembly 7, and a limiting structure 5; the load-bearing flexible base plate 2 is provided with a mounting through hole; the base plate 1 is disposed in the mounting through hole; the weighing sensor 3 includes a fixed end and a force-receiving end, the fixed end being fixed to the base plate 1; the lower end of the load-bearing seat plate 4 is fixedly disposed on the force-receiving end, and the upper end is connected to the load-bearing circular joint 17; the flexible support assembly 7 is disposed on the weighing sensor One side of the load cell 3; one end of the flexible assembly 7 is fixed to the load-bearing flexible base plate 2, and the other end is fixed to the base plate 1; the limiting structure 5 includes a concave limiting end fixedly connected to the load-bearing base plate 4 and a limiting plate 6 fixedly connected to the base plate 1 at one end. The concave limiting end includes an installation end fixedly connected to the load-bearing base plate 4 by bolts and a concave groove below it; the limiting plate 6 is fixed to the base plate 1 by bolts, and the other end of the limiting plate 6 is set in the concave limiting end for upper and lower limiting of the load cell 3.
[0033] In one embodiment, the flexible cable assembly 7 includes a flexible cable mounting base, a flexible cable, and a flexible cable connector plate. One end of the flexible cable assembly 7 is fixed to the load-bearing flexible base plate 2 and connected to the motor cable inlet end, while the other end is fixed to the base plate 1 and connected to the motor cable outlet end, with a flexible cable used for transition in between. This ensures that the load-bearing flexible base plate 2 and the base plate 1 are movably connected, making the motor and the weighing platform integrated, thus solving the problem of cable interference in the motor power supply box section.
[0034] In one embodiment, a silicone dustproof film 9 is provided below the load-bearing flexible joint base plate 2 and the base plate 1 to ensure the sealing between the load-bearing flexible joint base plate 2 and the base plate 1.
[0035] In one embodiment, the lower end of the load-bearing flexible joint base plate 2 is provided with an inner flange pressure ring 11 and an outer flange pressure ring 10 for fixing the silicone dustproof film 9. The outer flange pressure ring 10 is fixedly connected to the load-bearing flexible joint base plate 2, and the inner flange pressure ring 11 is fixedly connected to the base plate 1. The inner flange pressure ring 11 and the outer flange pressure ring 10 are used to press the silicone dustproof film 9.
[0036] In one embodiment, a sealing cover 12 is also provided on the load-bearing flexible base plate 2, the sealing cover 12 making the weighing sensor 3 device a sealed whole.
[0037] In one embodiment, a first sealing ring 13 and a sealing ring pressure plate 8 are provided at the connection between the load-bearing flexible joint base plate 2 and the sealing cover 12. The sealing ring pressure plate 8 presses the first sealing ring 13 to achieve better sealing.
[0038] In one embodiment, the load-bearing circular joint 17 is disposed above the sealing cover 12.
[0039] In one embodiment, a second sealing ring 14 is provided between the load-bearing circular joint 17 and the sealing cover 12.
[0040] In one embodiment, an aviation plug 15 and a waterproof connector 16 are connected and disposed below the load-bearing flexible connector base plate 2 for cable entry and exit and sealing.
[0041] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention.
Claims
1. A load cell arrangement, characterized by The utility model relates to a load cell, which comprises: a load-bearing soft joint base plate provided with a mounting hole; a base plate arranged in the mounting hole; a load cell comprising a fixed end and a force-receiving end, wherein the fixed end is fixed to the base plate; a load-bearing base plate, the lower end of which is fixedly arranged on the force-receiving end, and the upper end of which is connected to a load-bearing circular joint base; a flexible cable assembly arranged on one side of the load cell, one end of which is fixed to the load-bearing soft joint base plate, and the other end of which is fixed to the base plate; a limiting structure comprising a concave limiting end fixedly connected to the load-bearing base plate and a limiting plate fixedly connected to the base plate at one end, the other end of the limiting plate being arranged in the concave limiting end, and the limiting structure being used for limiting the upward and downward movement of the load cell.
2. Weighing sensor arrangement according to claim 1, characterized in that The flexible cable assembly comprises a flexible cable fixing seat, a flexible cable, and a flexible cable connecting plate. One end of the flexible cable assembly is fixed to the load-bearing soft joint base plate and connected to the incoming end of the motor cable, and the other end of the flexible cable assembly is fixed to the base plate and connected to the outgoing end of the motor cable, and a flexible cable is used for transition.
3. The load cell apparatus of claim 1, wherein, A silica gel dustproof film is arranged below the load-bearing soft joint base plate and the base plate.
4. The load cell apparatus of claim 3, wherein, The lower end of the load-bearing soft joint base plate is provided with an inner flange pressing ring and an outer flange pressing ring for fixing the silica gel dustproof film, the outer flange pressing ring is fixedly connected to the load-bearing soft joint base plate, and the inner flange pressing ring is fixedly connected to the base plate.
5. The load cell apparatus of claim 4, wherein, The utility model also comprises a sealing cover arranged on the load-bearing soft joint base plate.
6. The load cell apparatus of claim 5, wherein, A first sealing ring and a sealing ring pressing plate are arranged at the connection between the load-bearing soft joint base plate and the sealing cover.
7. The load cell apparatus of claim 5, wherein, The load-bearing circular joint base is arranged above the sealing cover.
8. The load cell apparatus of claim 5, wherein, A second sealing ring is arranged between the load-bearing circular joint base and the sealing cover.
9. The load cell apparatus of claim 1, wherein, An aviation plug and a waterproof joint are arranged below the load-bearing soft joint base plate, which are used for the entry and exit of the cable and sealing.