Split type self-locking bolt

Abstract

The invention relates to the technical field of hardware connecting pieces, in particular to a split type self-locking bolt. The split type self-locking bolt comprises a bolt head and a bolt rod, an arc-shaped storage groove is formed in the threaded face of the outer side of the bolt rod, and an arc-shaped turnover limiting plate is movably installed in the arc-shaped storage groove. According to the split type self-locking bolt, the arc-shaped storage groove internally provided with the arc-shaped turnover limiting plate is formed in the threaded face of the outer side of the bolt rod, telescopic adjustment and control are conducted on the arc-shaped turnover limiting plate through a middle adjusting rotating shaft in the bolt rod, then the outer diameter of the arc-shaped turnover limiting plate can be adjusted so that the arc-shaped turnover limiting plate can be suitable for inner screw holes of more specifications, and thus the application range is wider; and the arc-shaped turnover limiting plate is composed of a scissor-fork type internal telescopic support controlled by an external thread adjusting rod in a telescopic mode, and an external thread arc-shaped limiting plate, limiting is achieved through elastic extrusion of the external thread arc-shaped limiting plate, and therefore a limiting protrusion is formed on the assembling face, and the self-locking performance and safety of the bolt are improved.

Description

technical field [0001] The invention relates to the technical field of hardware connectors, in particular to a split type self-locking bolt. Background technique [0002] A bolt is one of the mechanical parts, a cylindrical threaded fastener with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which needs to be matched with a nut to fasten 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 and so on. Among them, the hexagonal head is the most commonly used. Generally, countersunk heads are used where connections are required. [0003] Bolt, be can't do without when neutralizing in the middle of...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, an improved split-type self-locking bolt is provided to solve the problem that the traditional self-locking bolts on the market are mainly limited by one-way elastic extrusion. , and because the limit mechanism is exposed, the anti-loosening performance is still insufficient, and the service life is not long. At the same time, because the structure is fixed and cannot be adjusted, the adaptability to the thread is relatively simple, and the operation is also very inconvenient.

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