An automatic elastic anti-loosening bolt

Abstract

The invention discloses an automatic elastic locking bolt. The automatic elastic locking bolt is characterized in that an accommodating groove is formed in a screw; the accommodating groove is communicated with a horizontal straight slot; a cylinder is arranged at the bottom of the accommodating groove, and a telescopic rod of the cylinder extends upwardly; a push block is arranged at an end of the telescopic rod of the cylinder; a switch for controlling the cylinder is arranged on the upper surface of a bolt head; 'I'-shaped portions of 'L'-shaped rotary blocks are accommodated in the accommodating groove, and the bottoms of the 'I'-shaped portions of the 'L'-shaped rotary blocks are in contact with the push block; gaps are reserved between the lower ends of protrusions and the bottom of the horizontal straight slot; the 'I'-shaped portions of the two 'L'-shaped rotary blocks can slide up and down in the accommodating groove; the 'I'-shaped portions of the two 'L'-shaped rotary blocks can be downwardly turned over when upwardly sliding to the highest positions; 'horizontal' portions of the 'L'-shaped rotary blocks comprise fixing blocks, connecting blocks and elastic components. The automatic elastic locking bolt has the advantages that the protrusions can be supported by the elastic components to be in contact with the surfaces of two sides of a plate, contact force and friction force of the protrusions and the surfaces of the two sides of the plate can be kept, and the automatic elastic locking bolt is small in occupied space and convenient to use and is portable.

Description

technical field [0001] The invention relates to an automatic elastic anti-loosening bolt, in particular to an automatic elastic anti-loosening bolt used on plates, and belongs to the technical field of mechanical fasteners. Background technique [0002] Bolts are a type of fastener consisting of a bolt head and a screw rod (a cylinder with external threads), which are used to fasten two mechanical parts with through holes. If the bolt is unscrewed, the two parts can be separated, so the bolt connection is a detachable connection and is widely used on the plate. When the mechanical equipment is running, mechanical vibration will inevitably occur. Long-term mechanical vibration will cause the bolts to shake, resulting in thread wear, making the fastening effect of the bolts worse, affecting the working performance and stability of the mechanical equipment, especially affecting some precision parts. The machining accuracy of the equipment may also cause bolts to escape from th...

AI Technical Summary

Problems solved by technology

However, when the bolt is in a normal state, the upper surface of the "I" portion of the "L" shaped turning block is higher than the upper surface of the bolt head, which takes up a large space and is extremely inconvenient to carry and use; and when in use, the "L" When the turning block is turned over, before the inner end surface of the "–" part of the "L"-shaped turning block comes into contact with the surfaces on both sides of the plate, the plate will squeeze several protrusions on the outside, resulting in wear or damage of the protrusions, which seriously affects the anti-loosening effect of the bolts

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