A wrench for fastening high-strength bolts

Abstract

The invention relates to the technical field of wrenches, in particular to a wrench for fastening high-strength bolts, which includes a sleeve, a sleeve and a fixed column. The inner rotation of the sleeve is connected with a connecting column, and the top of the connecting column is provided with a longitudinally penetrating square channel. Groove, the upper side of the right end of the fixing column is provided with a first groove, the inside of the first groove is fixedly connected with the first fixing tube, the outer side of the right end of the first fixing tube is provided with a second fixing tube, and the second fixing tube The right end of the fixed handle is fixedly connected with a fixed handle, the right end of the fixed handle is provided with a turning groove, the inner rotation of the rotating groove is connected with a swivel ring, the right end of the swivel ring is fixedly connected with a rotating column, and the left end of the rotating column is rotatably matched with the right end of the fixed handle ; It is convenient to adjust the length of the handle, can tighten the reinforcement bolts to the required strength, improves the stability of the reinforcement bolt fastening, is convenient to replace different types of sleeves to fix high-strength bolts of different specifications, and improves its practicality of use.

Description

technical field [0001] The invention relates to the technical field of wrenches, in particular to a wrench for fastening high-strength bolts. Background technique [0002] High-strength bolts are high-strength bolts and belong to a standard part. In general, high-strength bolts can withstand a larger load than ordinary bolts of the same specification, and high-strength bolts are mainly used in steel structure engineering. A very important feature of high-strength bolts is that they are limited to one-time use, generally used for permanent connections, and repeated use is strictly prohibited. [0003] The commonly used wrench for tightening the reinforcement bolt now has a socket wrench. The handle of the existing socket wrench is too short. Screwing to the required strength reduces the stability of the bolt fastening and reduces its practicability. Although the CN210361087U patent document realizes the change of the sleeve, in addition, the existing wrench is affected by t...

AI Technical Summary

Problems solved by technology

[0003] The commonly used wrench for tightening the reinforcement bolt now has a socket wrench. The handle of the existing socket wrench is too short. Screwing to the required strength reduces the stability of the bolt fastening and reduces its practicability. Although the CN210361087U patent document realizes the change of the sleeve, in addition, the existing wrench is affected by the circumference of the bolt to be tightened. The blocking of the parts, after turning the bolt at a certain angle, it needs to be disassembled repeatedly, and then the bolt is driven to rotate. This problem is more serious when the length of the wrench is longer. the intensity of the work

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