Self-locking mechanism and folding joint

Abstract

The invention discloses a self-locking mechanism. The self-locking mechanism comprises a handle, an eccentric assembly and a self-locking bolt. A groove is formed in one end of the handle, and a sliding groove is formed in the inner wall of the groove; the eccentric assembly is rotatably arranged in the groove, and a clamping groove is formed in the periphery of the eccentric assembly; and the self-locking bolt is arranged in the sliding groove and can slide in the length direction of the sliding groove. The self-locking bolt comprises a locking block and an elastic piece. The locking block abuts against the peripheral edge of the eccentric assembly. The elastic piece provides force through which the peripheral edge of the eccentric assembly is tightly pressed by the locking block. The handle is rotated, and the self-locking bolt rotates along with the handle; and when the locking block rotates to the clamping groove, the locking block is pushed by the elastic piece to be inserted into the clamping groove, and the handle is locked. The invention further discloses a folding joint. The folding joint comprises the self-locking mechanism, an upper folding joint, a lower folding joint and a locking mechanism. The locking mechanism is used for locking the upper folding joint and the lower folding joint. The self-locking mechanism and the folding joint are reliable in locking and high in safety.

Description

technical field [0001] The invention relates to the technical field of bicycles, in particular to a self-locking mechanism and a folding joint. Background technique [0002] In the existing bicycle folders, in order to avoid locking failure due to loose handles, the pressure during the handle rotation process is usually used to limit the rotation of the handle. When the locking strength is high, both locking and unlocking require great effort, which is inconvenient to use. When the locking strength is low, the locking is unreliable, and the handle may loosen or even open under accidental touch. Failure will occur, bringing great safety hazards to cyclists. [0003] The Chinese patent with application number 200810037770.8 discloses a quick-release self-locking handle for a bicycle, which includes the inside of the handle notch and one end of the screw block, a self-locking rod is arranged between the two, and a lock block is arranged on the self-locking rod, and the lock bl...

AI Technical Summary

Problems solved by technology

However, since the structural spring is in an exposed state, it is easy to jump out and fail due to the entry of foreign matter

And when the spring fails due to long-term use or damage, the self-locking rod will not be able to remain in the notch of the eccentric block, resulting in locking failure, and there is a certain potential safety hazard

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