Bolt with self-locking function under vibration

Abstract

The invention discloses a bolt with self-loosening function under vibration, which comprises a screw section and a nut end arranged at the end of the screw section, and a plurality of elastic protrusions are arranged on the end surface of the nut end close to the screw section. The elastic protrusions can be elastically deformed during the tightening of the bolts; the free ends of the elastic protrusions are inclined toward the direction of loosening the bolts. In this structure, an elastic protrusion is provided on the end surface of the nut end close to the end of the screw section. In this way, during the tightening process of the bolt, the elastic protrusion undergoes elastic deformation, and the elastic force generated by the above elastic deformation can be used as a bolt to prevent loosening. In this way, the bolt also has a good anti-loosening ability without the use of elastic pads; the setting where the free end of the elastic protrusion is inclined toward the direction of loosening the bolt can prevent the elasticity during the tightening of the bolt. The deformation of the protrusion produces a guiding effect, so that the elastic protrusion is easily forced to deform elastically, so as to achieve the technical effect of being convenient to tighten the bolt.

Description

technical field [0001] The invention relates to the technical field of mechanical connectors, in particular to a bolt with a self-loosening function under vibration. Background technique [0002] A bolt is a mechanical part, usually a cylindrical threaded fastener with a nut. The bolt is composed of two parts, the head and the screw rod (a cylinder with external threads). When used, it needs to cooperate with the nut to fasten and connect two parts with through holes. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. According to the way of connection force: divided into ordinary and hinged holes. According to the shape of the head: there are hexagonal head, round head, square head, countersunk head, etc. Among them, the hexagonal head is the most commonly used. [0003] At present, for the anti-loosening of bolted connections, a relatively common form ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a bolt with self-locking function under vibration to solve the problem through the following technical points: A bolt with self-locking function under vibration includes a screw section and a nut arranged at the end of the screw section There are also multiple elastic protrusions on the end surface of the nut end close to the screw section, and the elastic protrusions can produce elastic deformation during the tightening of the bolts; the free ends of the elastic protrusions are inclined toward the direction of loosening the bolts

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