Torque wrench

Abstract

The invention belongs to to the technical field of torque wrenches and provides a torque wrench. The torque wrench comprises a steel pipe. The torque wrench further comprises an adjusting part, a working part and a control part; the adjusting part comprises a sliding block main body arranged in the steel pipe, the sliding block main body comprises a first main body and a second main body, the side wall of the second main body makes contact with the inner wall of the steel pipe, the first main body is installed in the second main body, a steel ball is mounted between the first main body and the second main body and is fixed between the first main body and the second main body through a spring; the working part comprises a driving head arranged at one end of the steel pipe, and the driving head is connected with the sliding block main body through a connecting assembly; and the control part is used for being held by a user, a torsion spring matched with the control part is installed in the steel pipe, and one end of the torsion spring is in contact with the first main body. According to the torque wrench, abrasion can be effectively controlled, and the problem that the precision becomes poor after the steel pipe is abraded due to stress friction is solved.

Description

technical field [0001] The invention belongs to the technical field of torque wrench, in particular to a torque wrench. Background technique [0002] Torque wrench is also called torque wrench and torque wrench. It can be divided into electric, pneumatic and manual in terms of power source. There are three types of manual torque wrenches common in the industry: preset torque wrench, digital display torque wrench, dial torque wrench (also called pointer type). Each type of wrench has its own characteristics and is used in different occasions. For example, the preset torque wrench is mainly used for fastening the preset value of the bolt, and the digital display torque wrench and the dial torque wrench are generally used for Torque detection. Generally speaking, the use of torque wrench mainly lies in the precise control of bolt force value [0003] In the existing torque wrench, the slide block directly rubs against the steel pipe, which will lead to high friction resistan...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a torque wrench, aiming at solving the problem that in the existing torque wrench, the slider directly rubs against the steel pipe, which will lead to large frictional resistance and affect the accuracy of the product.

The accuracy of these two torsion springs will fluctuate with use, and the use effect is poor

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