A bicycle with a small wheel diameter that can be pushed after being folded vertically

Abstract

The invention discloses a small wheel diameter pushable and liftable bicycle capable of being vertically folded. The bicycle comprises a front wheel, a rear wheel, a front fork, a rear fork, a front fork stand pipe, a handlebar rack, a bicycle frame, a saddle tube, a saddle seat and a driving mechanism, wherein the bicycle is integrally H-shaped; the front fork stand pipe and a handlebar vertical pipe are vertical, and the saddle tube is also vertical; a bicycle frame front tube and a bicycle frame rear tube are horizontally and transversely arranged to form one transverse line of the H-shaped bicycle; the bicycle frame front tube and the bicycle frame rear tube are hinged through a unidirectional rotation hinged joint positioned in the middle; the unidirectional rotation hinged joint rotates and is folded under the acting force of lifting; the bicycle is rectangle-shaped after being folded; after the bicycle is folded, the bicycle frame front tube and the bicycle frame rear tube are vertical, and the front wheel and the rear wheel are closed up and are positioned on the same straight line; after the bicycle is folded, the connecting line between the hinged shaft of the unidirectional rotation hinged joint and a front wheel axle and the connecting line between the hinged shaft of the unidirectional rotation hinged joint and a rear wheel axle form the two waists of an upright isosceles triangle. According to the bicycle, the structure of the overall bicycle can be simplified to the maximum extent, and the weight of the overall bicycle is reduced to the maximum limit.

Description

technical field [0001] The invention relates to a folding bicycle, in particular to a bicycle with a small wheel diameter that can be pushed after being folded vertically. Background technique [0002] Bicycle is an energy-saving and environment-friendly means of transportation. It used to be one of the main means of transportation in urban and rural areas of our country. At present, with the development of economy and technology, four-wheel motor vehicles and rail transit have already become the main means of transportation for people to go out in the city. Start getting people's favor. [0003] However, due to the increasing population density and the acceleration of the pace of life in cities, people prefer bicycles that are small in size and easy to carry. In addition to being suitable for short-distance driving, this bicycle is especially suitable for bicycles that cannot be covered by public transportation. For example, when traveling between a subway station or bus ...

AI Technical Summary

Problems solved by technology

However, the structure of the bicycle frame is slightly complicated, and the folded model is still not compact and neat enough. Although the folded bicycle is greatly reduced in size, it cannot be pushed, and it still needs manpower to carry or carry it on the back, which cannot further reduce the rider's carrying. burden

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