Torque wrench with adjustable torque amplitude

Abstract

The invention discloses a torque wrench with the adjustable torque amplitude. The torque wrench comprises a rod sleeve, a wrench head and a wrench hook, wherein the wrench hook is movably arranged on the wrench head; and an adjusting device is arranged between the rod sleeve and the wrench hook and comprises an adjustment sliding rod, a connecting rod and a rotary knob, the adjustment sliding rod is arranged in the rod sleeve, the rotary knob is arranged at one end of the adjustment sliding rod, the other end of the adjustment sliding rod is connected with the connecting rod, and the connecting rod is connected with the wrench hook. According to the torque wrench, through arrangement of the adjustment device, the size of a bayonet formed by the wrench head and the wrench hook can be adjusted, so that the torque wrench is applicable to fasteners in different specifications, is convenient to use and operate and is high in work efficiency. During specific use, the rotary knob is used for driving the adjustment sliding rod to move linearly, the wrench hook rotates around the center of a first hook groove hole under the connecting action of the connecting rod and a movable pin shaft, and the size of the bayonet formed by the wrench head and the wrench hook is adjusted, so that the torque wrench is applicable to fasteners in different specifications, and is convenient to use and operate.

Description

technical field [0001] The invention relates to a torque wrench with adjustable torque. Background technique [0002] Torque wrench (torque wrench), also known as torque wrench, torque wrench or torque wrench, is a kind of wrench, generally divided into two types: electric torque wrench and manual torque wrench. Torque is the product of force and distance. When tightening screws, bolts, nuts and other threaded fasteners, it is necessary to control the applied torque to ensure that the threads are tightened and the threads will not be damaged due to excessive torque, so a torque wrench is used to operate. First, set a required upper limit of the torque value. When the applied torque reaches the set value, the wrench will make a "click" sound or the wrench connection will bend a little, which means that it has been tightened and no further force is required. [0003] However, the torque of the torque wrench in the prior art is not easy to adjust. When the wrenches are used fo...

AI Technical Summary

Problems solved by technology

[0003] However, the torque of the torque wrench in the prior art is not easy to adjust. When the wrench head is used for fasteners of different specifications, it is necessary to replace the wrench head with different specifications, and the work efficiency is low, which brings a lot of inconvenience to people.

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