Antiskid pair of nut

Abstract

The anti-skid screw nut pair includes one connecting part, and one upper nut and one lower nut screwed onto one screw. The upper nut and the lower nut are set with some interval in between, and provided with corresponding screw hole for the connecting part to be set inside. After screwing in the connecting part into the screw holes of the upper nut and the lower nut, the upper nut and the lower nut may be shifted upwards and downward separately to clamp the screw tightly with obviously increased friction resistance and realize the anti-skid aim. In addition, the present invention has simple structure, convenient manufacture and other advantages.

Description

Technical field [0001] The invention relates to a non-slip nut pair, in particular to a non-slip nut pair including upper and lower nuts. Background technique [0002] In the mechanical field, anti-loosening or anti-slip measures are required for many connection or fastening occasions. This is especially true for threaded connections. In the case of intense vibration, the nut will often automatically loosen. In order to solve this problem, the prior art mainly has the following two types: The first is to add a washer under the nut, and use the pressure generated by the elastic deformation of the washer after the nut is tightened to maintain a certain frictional resistance between the nut and the bolt. Prevent the nut from loosening; this method can play a certain anti-skid effect, but the flexibility is not high and the anti-skid function is unreliable, and it will still slip after working for a long time. In addition, the sharp corners of the washer can easily scratch the suppor...

AI Technical Summary

Problems solved by technology

In order to solve this problem, the existing technologies mainly include the following two types: the first is to add a washer under the nut, and use the pressure generated by the elastic deformation of the washer after tightening the nut to maintain a certain frictional resistance between the nut and the bolt, so as to Prevent the nut from loosening; this method can play a certain anti-slip effect, but the flexibility is not high and the anti-slip function is not reliable, and slipping will still occur after a long time of work. In addition, the sharp corners of the gasket are also easy to scratch the supporting surface of the part

The second is to use a mechanical structure to connect the tightened nuts and bolts into one body, eliminating the possibility of relative rotation between them to achieve the purpose of anti-loosening; although this method has high reliability of anti-skid, it is harmful to the manufacturing and processing of parts. High precision requirements, limited scope of use, and there are problems such as a large number of parts and complicated installation

However, the reliability of the anti-skid function of this product is still low, and the structure is complicated, which is very inconvenient to process.

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