Portable folding bicycle

Abstract

The invention discloses a portable folding bicycle, and belongs to the field of bicycle structural design. With the improvement of people's environmental awareness, more townspeople select a 'bus plus bicycle' trip mode. However, bicycles are not allowed to be brought on buses in main domestic cities currently, so that the conflict can be solved by folding the bicycles into luggage sizes and bagging the folded bicycles. Through application of two dead center positions of double rocker mechanisms, a folding bicycle frame with good mechanical properties and being flat in shape and convenient to bag and carry after being folded is designed. Coupling of six groups of pairwise symmetrical four-rod mechanisms enables the degree of freedom of the folded bicycle frame to be 1, so that the bicycle frame is convenient to fold. The bolt-type fixation is convenient and reliable. Through matching between an upper handlebar folding mechanism and a saddle folding mechanism, the size of a folded bicycle body is not greater than 830mm*630mm*280mm, and the bicycle can be packed into a luggage case or a portable knapsack with the above size. 16-inch wheels are adopted, accessories are all standard options, and the portable folding bicycle can be widely popularized.

Description

technical field [0001] The invention relates to a design of a folding bicycle which is easy to pack and carry after being folded, and belongs to the field of bicycle structure design. Background technique [0002] In today's society, due to the increasingly serious problems of pollution and traffic congestion, with the improvement of environmental protection awareness, people began to advocate the concept of "low-carbon environmental protection, green travel". More and more people choose to travel by bus or subway, but because the network of bus and subway lines cannot completely cover every corner of the city, there will always be some vacuum areas in green travel. Therefore, bicycles that can be flexibly folded and stored easily can be well connected with other traffic lines while ensuring green travel, forming a continuous green travel route. [0003] However, regulations in Beijing, Tianjin, Shanghai, Dalian and other regions do not allow passengers to carry foldable bi...

AI Technical Summary

Problems solved by technology

At present, most of the folding bicycles on the market are small in size after being folded, but their shape is not regular, and it is not easy to store in a backpack

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