CN219714529U - High-sensitivity weighing sensor - Google Patents

Abstract

The utility model provides a high-sensitivity weighing sensor which is characterized by comprising a shell and a sensor main body, wherein the sensor main body is fixed in the shell, a screw rod is fixed at the detection end of the sensor main body, and a locking nut is fixed outside the screw rod extending to the shell; two installation components are arranged in the shell, the two installation components comprise two fixing rods, the two fixing rods can be fixed in a vertical state, two pieces of drying paper are arranged in the shell, and the two pieces of drying paper are respectively rotated to the two fixing rods in a vertical state and clamped on the inner side of the shell. The weighing sensor provided by the utility model can keep the drying in the shell, so that the sensor main body can work in a drying state, and the sensitivity of the weighing sensor is improved.

Description

High-sensitivity weighing sensor

Technical Field

The utility model relates to the field of sensors, in particular to a high-sensitivity weighing sensor.

Background

With the continuous development of sensor technology, the weighing sensor module is widely applied to various electronic weighing devices such as electronic platform scales, gas detection lines, hopper scales, automobile scales, rail scales, axle load scales, ground scales and the like.

The sensitivity requirements required by current weighing sensors are becoming higher and higher, and in addition to the choice of the sensor body, the control of the external environment in which the sensor is located is becoming more and more important. When the current sensor works in a large-humidity environment, the ambient humidity of the sensor body is large due to large air humidity, so that the sensitivity of the sensor is influenced.

Disclosure of Invention

Based on the above-mentioned current situation, the main objective of the present utility model is to provide a weighing sensor with high sensitivity, so as to solve the problem that when working under an environment with high humidity, the humidity of the environment where the sensor body is located is high due to high air humidity, and the sensitivity of the sensor is affected.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the high-sensitivity weighing sensor comprises a shell and a sensor main body, wherein the sensor main body is fixed in the shell, a screw rod is fixed at the detection end of the sensor main body, and a locking nut is fixed outside the screw rod extending to the shell;

two installation components are arranged in the shell, the two installation components comprise two fixing rods, the two fixing rods can be fixed in a vertical state, two pieces of drying paper are arranged in the shell, and the two pieces of drying paper are respectively rotated to the two fixing rods in a vertical state and clamped on the inner side of the shell.

Preferably, the housing comprises a first shell and a second shell, the first shell and the second shell are detachably connected, and the two mounting assemblies are arranged on the inner side wall of the second shell.

Preferably, the installation component lid includes the supporting shoe, and one side rigid coupling of supporting shoe has the pivot, the dead lever rigid coupling is in the pivot, the cover is equipped with the torsional spring in the pivot, the one end rigid coupling of torsional spring in the supporting shoe, the other end rigid coupling in the dead lever, under the normality, the torsional spring can drive the dead lever rotates to vertical state.

Preferably, the upper and lower both sides of first casing all rigid coupling has first connecting block, the upper and lower both sides of second casing all rigid coupling has the second connecting block, first connecting block with the adjacent setting of second connecting block, first through-hole has been seted up on the first connecting block, the second through-hole has been seted up on the second connecting block, first through-hole and second through-hole can coaxial setting, wear to be equipped with the bolt between first through-hole and the second through-hole, threaded connection has the nut on the bolt.

Preferably, a mounting block is fixed at one end of the housing, the mounting block is fixed with the sensor main body, a mounting frame is fixed at one end of the housing at a position corresponding to the mounting block, and the mounting frame is fixedly connected with the mounting block.

The beneficial effects of the utility model are as follows: the drying paper can be fixed through the two fixing rods in the shell, moisture carried in humid air in the shell can be absorbed by the drying paper in a short distance, drying in the shell is kept, the sensor main body can work in a drying state, and the sensitivity of the weighing sensor is improved.

Other advantages of the present utility model will be set forth in the description of specific technical features and solutions, by which those skilled in the art should understand the advantages that the technical features and solutions bring.

Drawings

Fig. 1 is a schematic perspective view of a high-sensitivity weighing sensor according to the present utility model.

Fig. 2 is a cross-sectional view of a high sensitivity load cell of the present utility model showing the body of the sensor.

Fig. 3 is an enlarged schematic view of section a.

Fig. 4 is an exploded view of a high sensitivity load cell of the present utility model showing a first through hole.

Reference numerals illustrate:

1. a housing; 11. a mounting block; 12. a mounting frame; 2. a sensor body; 21. a screw; 22. a lock nut; 3. a first housing; 31. a first connection block; 311. a first through hole; 4. a second housing; 41. a mounting assembly; 411. a support block; 412. a rotating shaft; 413. a fixed rod; 414. a torsion spring; 42. drying the paper; 43. a second connection block; 431. a second through hole; 432. a bolt; 433. and (5) fixing a nut.

Detailed Description

The present utility model is described below based on examples, but the present utility model is not limited to only these examples. In the following detailed description of the present utility model, certain specific details are set forth in order to avoid obscuring the present utility model, and in order to avoid obscuring the present utility model, well-known methods, procedures, flows, and components are not presented in detail.

Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Referring to fig. 1 to 4, the present utility model provides a high sensitivity weighing sensor, comprising a housing 1 and a sensor body 2 mounted in the housing 1, wherein a mounting block 11 is fixed to one end of the housing 1, and one end of the sensor body 2 is fixed to the mounting block 11. The one end that sensor main part 2 kept away from installation piece 11 is the detection end, and the detection end is fixed with screw rod 21, and the one end that sensor main part 2 was kept away from to screw rod 21 extends to shell 1 external connection and is connected with lock nut 22 to can connect the foreign object in this and be used for weighing the dynamometry.

The housing 1 comprises a first housing 3 and a second housing 4, the inner cavities of the first housing 3 and the second housing 4 are close to each other and are detachably connected to form the housing 1, a mounting block 11 is fixed at one end of the first housing 3, and an electric wire for supplying power to the sensor main body 2 is fixed on the first housing 3. The inside wall of second casing 4 is provided with two sets of installation component 41, and two installation component 41 all include two supporting shoe 411 and dead lever 413, and two dead levers 413 are arranged along the axis direction of screw rod 21, all rotate on two supporting shoe 411 and are connected with pivot 412, and dead lever 413 rigid coupling is in pivot 412, and the cover is equipped with torsional spring 414 on the pivot 412, and the one end rigid coupling of torsional spring 414 is in supporting shoe 411, and the other end rigid coupling is in dead lever 413, and under the normality, torsional spring 414 drives dead lever 413 and rotates to vertical state. Two pieces of dry paper 42 are also provided in the second housing 4, and the two pieces of dry paper 42 are respectively fixed by two mounting members 41. Specifically, the dry paper 42 is held on the inner side wall of the second housing 4 by two fixing bars 413 that are turned to the vertical state. When the weighing sensor is assembled, the dry paper 42 can be clamped on the second shell 4 through the two fixing rods 413, after the first shell 3 and the second shell 4 are assembled to form the integral shell 1, the dry paper 42 can closely absorb moisture carried in moist air in the shell 1, so that the inside of the shell 1 is kept dry, the sensor main body 2 can work in a dry state, and the sensitivity of the weighing sensor is improved.

In addition, on the one hand, the housing 1 may be a whole housing 1, and the dry paper 42 may be disposed in the whole housing 1, and the separation into the first housing 3 and the second housing 4 may facilitate the installation of the dry paper 42, and also facilitate the installation of the sensor body. On the other hand, two fixing bars 413 may be directly vertically provided in the housing 1 for pressing and fixing the dry paper 42. In this way, the torsion spring 414 is used, so that the second housing 4 can be detached and the rotary fixing lever 413 can be detached to replace the dry paper 42 during long-term use, and the performance of the dry paper 42 in the housing 1 can be maintained continuously.

As an embodiment, the first connecting block 31 is fixedly connected to the upper and lower sides of the first housing 3, the second connecting block 43 is fixedly connected to the upper and lower sides of the second housing 4, the first connecting block 31 and the second connecting block 43 are adjacently arranged, the first connecting block 31 is provided with a first through hole 311, the second connecting block 43 is provided with a second through hole 431, the first through hole 311 and the second through hole 431 can be coaxially arranged, a bolt 432 is arranged between the first through hole 311 and the second through hole 431 in a penetrating manner, and the bolt 432 is connected with a fixing nut 433 in a threaded manner. Thereby fixing the first housing 3 and the second housing 4.

As an embodiment, a mounting frame 12 is fixed at one end of the housing 1 corresponding to the mounting block 11, and the mounting frame 12 is fixed with the mounting block 11. The mounting bracket 12 can facilitate the mounting of the load cell to an external device for ease of use.

The implementation principle of the utility model is as follows: the drying paper 42 can be fixed in the housing 1 through the two fixing rods 413, moisture carried in humid air in the housing 1 can be absorbed by the drying paper 42 in a short distance, drying in the housing 1 is maintained, the sensor main body 2 can be operated in a dry state, and the sensitivity of the weighing sensor is improved.

Those skilled in the art will appreciate that the above-described preferred embodiments can be freely combined and stacked without conflict.

It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the utility model, are intended to be included within the scope of the appended claims.

Claims (5)

1. The high-sensitivity weighing sensor is characterized by comprising a shell and a sensor main body, wherein the sensor main body is fixed in the shell, a screw is fixed at the detection end of the sensor main body, and a locking nut is fixed outside the screw extending to the shell;

two installation components are arranged in the shell, the two installation components comprise two fixing rods, the two fixing rods can be fixed in a vertical state, two pieces of drying paper are arranged in the shell, and the two pieces of drying paper are respectively rotated to the two fixing rods in a vertical state and clamped on the inner side of the shell.

2. The high sensitivity load cell of claim 1, wherein said housing comprises a first housing and a second housing, said first housing and second housing being removably connected, two of said mounting assemblies being disposed on an inner sidewall of said second housing.

3. The high-sensitivity weighing sensor according to claim 2, wherein the mounting assembly cover comprises a supporting block, a rotating shaft is fixedly connected to one side of the supporting block, the fixing rod is fixedly connected to the rotating shaft, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected to the supporting block, the other end of the torsion spring is fixedly connected to the fixing rod, and in a normal state, the torsion spring can drive the fixing rod to rotate to a vertical state.

4. The high-sensitivity weighing sensor according to claim 2, wherein the upper side and the lower side of the first shell are fixedly connected with first connecting blocks, the upper side and the lower side of the second shell are fixedly connected with second connecting blocks, the first connecting blocks and the second connecting blocks are adjacently arranged, the first connecting blocks are provided with first through holes, the second connecting blocks are provided with second through holes, the first through holes and the second through holes can be coaxially arranged, bolts are arranged between the first through holes and the second through holes in a penetrating mode, and nuts are connected to the bolts in a threaded mode.

5. The high-sensitivity weighing sensor according to claim 1, wherein a mounting block is fixed at one end of the housing, the mounting block is fixed with the sensor body, a mounting frame is fixed at one end of the housing at a position corresponding to the mounting block, and the mounting frame is fixedly connected with the mounting block.