Improved folder

Abstract

The invention provides an improved folder which is composed of a front seat and a rear seat, wherein, the front seat is hinged with one side of the rear seat, and a fastening mechanism is arranged between the other sides of the front seat and the rear seat; the fastening mechanism is composed of a rotating shaft, a fastening handle and a wrench, wherein two ends of rotating shaft are rotatablely fixed on the rear seat, and an end part of wrench is fixed on the rotating shaft; the fastening handle is movably sheathed in the rotating shaft in a penetration manner through a shaft hole at a tail part, and the other end of the fastening handle can grapple a clamp hook on the front seat corresponding to a clamp seat; an eccentric shaft corresponding to the shaft hole is formed at the middle part of the rotating shaft, the bottom part of the shaft hole is rotatablely fixed with at least one lower adjusting screw the end part of which stretches into the shaft hole and is supported at the eccentric shaft, the upper part of the shaft hole is rotatablely fixed with an upper adjusting screw the end part of which stretches into the shaft hole and is supported at the eccentric shaft, and the two end parts of the shaft hole are respectively equipped with two counter bores; a tightening spring which can facilitate restoration of the fastening handle is connected between the fastening handle and the rear seat; a groove is arranged on the eccentric surface of the eccentric shaft; and when the rotating shaft rotates opposite to the shaft hole, the end part of the upper adjusting screw is limited in the groove to rotate. The improved folder has simple and easy folding operation, excellent latching strength and excellent connection strength.

Description

technical field [0001] The invention relates to a folding mechanism, in particular to the improvement of a folder for folding two connected pipes, and is especially widely used in the connection of pipes such as bicycles and electric vehicles. Background technique [0002] General folding mechanisms all have the function of folding and folding, and after being folded, they are small in size and extremely convenient to carry and use, so they are more and more favored by consumers. The folding mechanism includes a front seat and a rear seat. One side of the front seat and the rear seat is hingedly connected, and the other side is provided with a quick release group that can buckle the front seat and the rear seat. The quick release group is composed of a wrench, a rotating shaft and a locking lever. One end of the locking lever is rotated and fixed to the rear seat through a rotating shaft, and the wrench is fixed on the rotating shaft. The locking lever and the corresponding ...

AI Technical Summary

Problems solved by technology

But in actual use, there are still the following disadvantages to be solved: when opening the quick-release group in the existing folding mechanism, firstly, after the wrench moves the rotating shaft, the lock lever is released, and then the lock needs to be pulled out by hand The quick release group can only be opened by the lever, and it is easy to loosen after being folded for a long time, which cannot guarantee driving safety

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