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Locking structure applied to weighing sensor and weighing sensor

A weighing sensor and locking structure technology, applied in the field of sensors, can solve the problems of unstable pre-tightening force, affecting the measurement accuracy of the load cell, and inaccurate peeling and zeroing of the load cell, so as to solve the problem of reduced measurement accuracy Effect

Pending Publication Date: 2022-05-10
GUANGZHOU XAIRCRAFT TECH CO LTD
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AI Technical Summary

Problems solved by technology

When the function of tare and zero adjustment of the load cell is realized based on the pre-tightening force, since the size of the pre-tightening force is unstable, it is easily affected by external vibration or other conditions, so that the tare and zero adjustment of the load cell is also unstable. Accurate, which in turn affects the measurement accuracy of the load cell

Method used

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  • Locking structure applied to weighing sensor and weighing sensor
  • Locking structure applied to weighing sensor and weighing sensor
  • Locking structure applied to weighing sensor and weighing sensor

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some, not all, embodiments of the application.

[0020] The load cell mainly includes components such as a shell, a pull shaft, and an elastic sheet equipped with a strain gauge. One end of the pull shaft is connected to the elastic piece, and the other end is used to connect the load to be weighed. One end of the elastic sheet is connected with the casing, and the other end is connected with the pull shaft. When a load is connected to the pull shaft, the pull shaft drives the elastic piece to deform, so that the weight of the load can be obtained according to the change in resistance measured by the strain gauge on the elastic piece. Since the elastic sheet in the load cell is the stress element that mainly bears the external force on the pul...

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Abstract

The invention provides a locking structure applied to a weighing sensor and the weighing sensor, and relates to the technical field of sensors.The locking structure comprises a shell, a load adjusting piece and a locking piece, the shell is a hollow cavity with an opening in the top, and the shell is used for containing a pull shaft of the weighing sensor; a load bearing piece of the weighing sensor and an elastic piece of the weighing sensor are arranged on the pull shaft in a sleeving mode, the elastic piece is arranged on the shell, the load bearing piece is limited between the opening and the elastic piece and used for bearing the pulling force borne by the pull shaft, and a cavity between the opening and the load bearing piece is an installation cavity of a hollow cavity; one end of the load adjusting part is arranged in the mounting cavity, is in contact with the load bearing part and is used for adjusting the pre-tightening force on the load bearing part; the locking piece is used for connecting the load adjusting piece and the shell and used for locking the relative position between the load adjusting piece and the shell. According to the invention, the problem that the pre-tightening force applied to an elastic part in the weighing sensor is unstable is solved.

Description

technical field [0001] The present application relates to the technical field of sensors, in particular to a locking structure applied to a load cell and the load cell. Background technique [0002] A load cell is a device that converts a mass signal into a measurable electrical signal output. There are many types of load cells, among which strain gauge load cells measure weight using the principle that the resistance of a strain gauge changes when it deforms. When the function of tare and zero adjustment of the load cell is realized based on the pre-tightening force, since the size of the pre-tightening force is unstable, it is easily affected by external vibration or other conditions, so that the tare and zero adjustment of the load cell is also unstable. Accurate, which in turn affects the measurement accuracy of the load cell. Contents of the invention [0003] In view of this, the embodiments of the present application provide a locking structure applied to a load c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G3/14G01G23/14G01G21/28
CPCG01G3/1402G01G23/14G01G21/28
Inventor 吴旭民陈鹏吴景润
Owner GUANGZHOU XAIRCRAFT TECH CO LTD
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