A locking bolt

Abstract

The invention discloses a novel lock bolt. A containing groove is formed in a screw rod and is communicated with a horizontal through groove, the I portions of two L-shaped rotary blocks abut against each other and are contained in the containing groove, a gap is reserved between the lower end of a protrusion and the bottom of the horizontal through groove, the I portions of the two L-shaped rotary blocks can slide up and down in the containing groove, and when sliding upward to the highest position, the I portions of the two L-shaped rotary blocks can turn over downward. The - portion of each L-shaped rotary block comprises a fixing block, a connection block and a cylinder, and the upper surface of a bolt head is provided with a switch controlling the cylinders. The novel lock bolt prevents the protrusion from being abraded or damaged, the stretching force of the cylinders can guarantee the contact force and the friction force between the protrusion and the surfaces of two sides, the occupied space is little, and the bolt is convenient to carry and use.

Description

technical field [0001] The invention relates to an anti-loosening bolt, in particular to an 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, which may cause me...

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

Images