Quick wrench for adjustable inner diameter

Abstract

A speed wrench adjustable in inner diameter dimension comprises a wrench body and a handle, wherein the wrench body is provided with a wrench opening used for dismounting a bolt. The speed wrench further comprises an inner diameter dimension adjusting structure used for adjusting the inner diameter dimension of the wrench opening and a rapid dismounting structure. The inner diameter dimension adjusting structure comprises an adjusting nut, an adjusting screw rod, a stud, a pressing board and a connection board used for connecting the stud with the adjusting screw rod. The wrench body is rotationally installed at the front end of the handle and is a cylinder; the wrench opening is formed in the lower end of the wrench body; a flange is arranged on the front side of the lower end of the wrench body and provided with an adjusting hole used for adjusting the adjusting nut; the pressing board is located in the wrench opening; the adjusting nut is located in the adjusting hole; the adjusting screw rod and the stud are arranged in parallel. The speed wrench adjustable in inner diameter dimension is easy and convenient to operate and saves time and labor.

Description

technical field [0001] The invention relates to a wrench for disassembling mechanical parts, in particular to a quick wrench with adjustable inner diameter. Background technique [0002] In the field of engineering, especially in the field of mechanical engineering, threaded connections are used in many places. During the assembly, repair and maintenance of equipment, various wrenches are often used to disassemble the equipment. The actual open-end wrench or ring wrench only has fixed specifications, and the size of the inner diameter cannot be adjusted. When using it, a heavy tool box must be carried. The size of the adjustable wrench can be adjusted, but on the one hand, because it uses the principle of thread transmission, there is a gap between them, so it is easy to slip when a large torque is applied, and on the other hand, it cannot be quickly disassembled like a ratchet wrench. The ratchet wrench and the wrench head can be quickly disassembled, but the wrench head o...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of existing open-end wrenches and wrench heads that cannot adjust many specifications, cannot adjust the size of the inner diameter, and cannot be quickly disassembled with the live-end wrench, the present invention provides a quick wrench with adjustable inner diameter that is easy to operate, saves time and effort

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