Improved locking mechanism of vertical pipe and regulating pipe used for bicycles and body building instruments

Abstract

The invention discloses an improved locking mechanism of a vertical pipe and a regulating pipe used for bicycles and body building instruments. The vertical pipe is freely inserted and arranged in the regulating pipe, the positions of the vertical pipe and the regulating pipe are relatively fixed through the locking mechanism, the improved locking mechanism is provided with a slide block and a fast dismounting handle, a slide pipe used for making the slide block move freely is arranged on the regulation pipe, the slide block can freely move in the axial direction of the slide pipe in the slide pipe, the slide pipe is provided with an opening at the vertical pipe, the slide block can be just tightly butted against or released from the vertical pipe, one end of the fast dismounting handle is provided with an arc-shaped groove, a positioning pin is arranged on the slide block, the positioning pin simultaneously and movably passes through the arc-shaped groove, the position between the other end of the fast dismounting handle and the arc-shaped grove is pivoted on the side wall of the slide pipe, and the distance from the position to the arc-shaped groove is smaller than the distance from the position to the other end of the fast dismounting handle. Thereby, the pivoting position is used as a fulcrum for forming the lever principle, the labor can be saved when people lift the other end of the fast dismounting handle, and the invention is favorable for tightly locking the vertical pipe. The invention has the advantages of convenient operation, high locking firmness degree and capability of maintaining the locking state for a long time.

Description

technical field [0001] The invention relates to a locking mechanism of a standpipe and an adjustment pipe for bicycles and fitness equipment. Background technique [0002] At present, the standpipes and adjustment pipes used by bicycles and fitness equipment mainly involve handlebars and seat cushions, such as the height adjustment of the handlebars and the height adjustment of the seat cushions. The fixed locking mechanism between the pipe and the adjustment pipe is a bolt with an operating handle, and the position between the pipe and the adjustment pipe is fixed by rotating the bolt to tighten the top pipe. However, after long-term use of this locking method, the bolt is prone to Loosening causes the standpipe to loosen, thereby causing a safety accident, and the locking surface is small (only the bolt end), so the firmness of locking is not high like this, and the operation is troublesome when locking or loosening the standpipe again. Contents of the invention [0003...

AI Technical Summary

Problems solved by technology

[0002] At present, the standpipes and adjustment pipes used by bicycles and fitness equipment mainly involve handlebars and seat cushions, such as the height adjustment of the handlebars and the height adjustment of the seat cushions. The fixed locking mechanism between the pipe and the adjustment pipe is a bolt with an operating handle, and the position between the pipe and the adjustment pipe is fixed by rotating the bolt to tighten the top pipe. However, after long-term use of this locking method, the bolt is prone to Loosening causes the standpipe to loosen, thereby causing safety accidents, and the locking surface is small (only the end of the bolt), so the locking firmness is not high, and it is more troublesome to lock or loosen the standpipe

Images