Folding bicycle frame structure

Abstract

The invention discloses a collapsible bicycle frame structure, which comprises the following parts: one car frame and one locating device, wherein the car frame is composed of the first rack body, second rack body, third rack body, fourth rank body; the locating device is installed between the first rack body and the second rack body, which is fit for the locating position and make the position fix relation between the first rack body and the second rack body; operating the locating device to leave the locating position can make the second rack body and the third rack body pivot to the first rack body; breaking the second extension reach the convenience folding frame effect.

Description

technical field [0001] The invention relates to a frame structure of a foldable bicycle, in particular to a frame structure of a foldable bicycle which can be folded conveniently and quickly. Background technique [0002] The structure of society is changing with each passing day. The quality of life that people demand is relatively improved, and the requirements for things have changed from the old thinking of "just use it" to a very delicate one. Only the concept of continuous improvement or innovation can satisfy the modern society. demand. [0003] Please refer to the "Concealed Folding Structure of Folding Bicycle" of TW Patent No. M246267, which mainly includes a folding box at the two corresponding ends of the folding tube of the bicycle, and the two folding boxes are mutually pivoted by a connecting seat. Assume that the two folding boxes can produce a mutual folding relationship. One of the folding boxes is provided with an accommodating groove for accommodating a...

AI Technical Summary

Problems solved by technology

[0004] This existing structure still has many disadvantages in practicality, because one side of the quick-release assembly is still exposed outside the folding tube of the bicycle, and it is easy to be touched by foreign objects when riding and hooked to the wrench pressing body, causing the folding tube to loosen. Take off, increase the danger when riding

However, the wrench pressing body only has an eccentric flange to create an urgent relationship with the folding box, and its resistance to vibration is poor, and it is easy to cause the quick release group to loosen due to bumpy roads.

Moreover, the quick release group does not have any safety device design, which is less thoughtful for the rider's safety

In addition, when folding the bicycle, the front and rear wheels are folded in half, which not only cannot fold the bicycle quickly and conveniently, but also cannot achieve the function of reducing the occupied space

After being folded, the bicycle cannot be directly dragged and moved by the user. It must be lifted or placed on the car, which is inconvenient to carry. This kind of design that does not conform to industrial use is very impractical, so there is an improvement the necessity of

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