Lightweight portable bicycle with small wheel diameters and capable of being folded vertically

Abstract

The invention discloses a lightweight portable bicycle with small wheel diameters and capable of being folded vertically, comprising a front wheel, a rear wheel, a frame, a handlebar frame which comprises a handlebar vertical tube and a handlebar horizontal tube, the front vertical tube of the frame, a seat, a front fork tube, a rear fork tube and a power device which drives the wheels to rotate;the handlebar frame and the front fork tube are respectively connected with the upper end and the lower end of the front vertical tube of the frame; and the lightweight portable bicycle with small wheel diameters and capable of being folded vertically is characterized in that: the frame mainly comprises a front tube of the frame and a rear tube of the frame with the upper ends being mutually hinged, and a connecting rope with both ends being respectively connected to the lower parts of the front tube of the frame and the rear tube of the frame, wherein the lower end of the front tube of the frame is fixedly connected onto the front vertical tube of the frame, the rear fork tube is fixedly connected with the lower end of the rear tube of the frame, and the seat is arranged on the top of the frame. According to the bicycle frame, the connecting rope with tensile strength is creatively adopted to replace the rigid lower tube of a traditional frame, so that the folding is convenient, the folding action is little, the folded size is smaller, the weight is lighter, and the carrying is more convenient.

Description

technical field [0001] The invention relates to a bicycle, in particular to a light and portable bicycle with a small wheel diameter that can be 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. 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 station and a res...

AI Technical Summary

Problems solved by technology

Although the folding bicycle can reduce the longitudinal size of the bicycle after being rotated and folded, it still has the following disadvantages: the rigidity and strength of the frame are not good, which not only affects the vehicle-carrying capacity, but also affects the stability and comfort of riding; in addition, The horizontal size of the folding bicycle is still too large after being folded, 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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