Elastic anti-loosening bolt

Abstract

The invention discloses an elastic locking bolt. A bolt body is formed by connecting a bolt head with a screw, horizontal through grooves are formed in the upper surface of the bolt head, a round corner is formed at the bottom of an I portion of each of two L-shaped rotating blocks, multiple protrusions are arrayed on the inner end face of a - portion of each L-shaped rotating block, containing grooves are formed in the screw and communicated with the horizontal through grooves, the I portions of the L-shaped rotating blocks are close to each other and contained in the containing grooves, a gap is reserved between the lower end of each protrusion and the bottom of the corresponding horizontal through groove, the I portions of the L-shaped rotating blocks can slide up and down in the containing grooves and can overturn downwards when upwards sliding to the highest positions, and the - portion of each L-shaped rotating block comprises a fixing block, a connecting block and an elastic part. The elastic parts can support the protrusions to contact with the surfaces of two sides of a plate so as to maintain contact force and friction force between the protrusions and the surfaces of the two sides, and the elastic locking bolt is small in occupied space and convenient to carry and use.

Description

technical field [0001] The invention relates to an elastic anti-loosening bolt, in particular to an 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 the threaded holes, wh...

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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