Locking device of telescopic pipe

Abstract

The invention discloses a locking device which can be used for a vertically telescopic pipe of a bicycle handle bar. The locking device comprises a sleeving, an inserting tube, a ring bundling clamp and an eccentric locking handle, wherein an upper opening of the sleeving is provided with a guide groove in the axial direction of a wall body of the sleeving, the inserting tube is inserted into the sleeving, the ring bundling clamp is arranged on the outer circle of the upper opening of the sleeving in a sleeved mode, and the eccentric locking handle is connected at the opening end of the ring bundling clamp. The outer circular wall face of the inserting tube is provided with a plane structure in the axial direction, a limiting block is arranged on the inner circular wall face of the ring bundling clamp, the limiting block is provided with a limiting plane which faces towards the center of the ring bundling clamp, and the limiting plane is attached to the plane structure of the outer circular wall face of the inserting tube. The limiting block is connected with the inner circular wall face of the ring bundling clamp through a guide sheet, and the guide sheet is clamped in the guide groove of the sleeving. The limiting plane where the limiting block and the inserting tube are attached is arranged to be of a plane structure, and the relative rotation of the inserting tube can be effectively limited. The locking device of the telescopic pipe effectively overcomes the defect that connection is not reliable in the prior art.

Description

technical field [0001] The invention relates to a mechanical connection mechanism, in particular to a locking device for a vertical telescopic sleeve used for folding a handlebar of a bicycle. Background technique [0002] Folding bicycles are favored by consumers for their fast folding or unfolding features. When the bicycle is folded, its volume becomes smaller, which greatly facilitates transportation and storage; after unfolding, it can be used safely, which is convenient for people to exercise or travel. The standpipe of the handlebar and the standpipe of the front fork are installed on the front end of the frame of the bicycle, and the standpipe is inserted into the standpipe and the axial height is adjusted by relative sliding. Generally, after the relative position of the standpipe and the standpipe is adjusted, the two are fixedly connected by a locking device, so that the two can neither slide axially relative to each other nor rotate circumferentially relative to...

AI Technical Summary

Problems solved by technology

In the long run, it will also bring safety hazards to cyclists

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