Portable bicycle with small-diameter wheel capable of being vertically folded

Abstract

The invention discloses a portable bicycle with a small-diameter wheel capable of being vertically folded. The portable bicycle comprises a front wheel, a rear wheel, a bicycle frame, a handle frame, a bicycle seat, a front Y-type pipe, a rear Y-type pipe and a power device, wherein the handle frame consists of a handle vertical pipe and a handle transverse pipe; the power device is used for driving the wheels to rotate; the bicycle frame is an upright triangular frame and comprises an inclined frame front pipe, an inclined frame rear pipe and a transverse frame lower pipe which form three angles which are hinged with one another; the front Y-type pipe and the handle frame are connected to the lower part and the upper part of a frame front angle consisting of the frame front pipe and the frame lower pipe respectively; the rear Y-type pipe is connected with a frame rear angle consisting of the frame rear pipe and the frame lower pipe; the bicycle seat is positioned at the top angle of the triangular bicycle frame; the frame lower pipe consists of a front lower pipe and a rear lower pipe which are hinged with each other; and the hinged point of the front lower pipe and the rear lower pipe is positioned in the middle of the frame lower pipe. The bicycle is folded vertically, so the bicycle has the advantages of convenient folding operation, a few folding actions, small volume after being folded and portability.

Description

Technical field [0001] The invention relates to a bicycle, in particular to a portable bicycle with a small wheel diameter that can be folded vertically. Background technique [0002] Bicycle is an energy-saving and environmentally friendly means of transportation. It used to be one of the main means of transportation in urban and rural areas in my country. At present, with the development of economy and technology, four-wheeled vehicles and rail transit have long become the main means of transportation for people in cities. However, as human activities are increasingly polluting the earth, the bicycles that have gradually faded out of urban life have been Began to gain people's favor. However, due to the increasing population density of cities and the acceleration of the pace of life, people prefer bicycles that are small in size and easy to carry. This kind of bicycle is not only suitable for short distance driving, but also suitable for public transportation. It can be used ...

AI Technical Summary

Problems solved by technology

Although the longitudinal size of the bicycle can be reduced after the folding bicycle is rotated and folded, its disadvantage is that the rigidity and strength of the vehicle frame are not good, which not only affects the carrying capacity, but also affects the stability and comfort of riding; in addition, the folding bicycle The horizontal size after folding is still too large, takes up a lot of space, and is difficult to carry

For example, China ZL2007200357940 discloses a double-folding shock-absorbing bicycle. The frame is provided with a spring shock absorber, which belongs to the aforementioned first shock-absorbing structure. The frame adopts a horizontal folding method, and its disadvantage is that it is restricted by the shock-absorbing structure. , the volume of the bicycle after folding is relatively large, and the longitudinal length of the bicycle is only slightly reduced, making it difficult to carry

In addition, the bicycle sacrifices the strength and rigidity of the frame in order to realize the shock absorption function, which affects the service life of the whole vehicle, and the actual shock absorption effect is not ideal.

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