Collapsible bicycle

Abstract

The present invention relates to a telescopic bicycle, including front bicycle frame, it has a head tube and a front fork tube which is passed through the head tube from bottom to top, the top end of said front fork tube is connected with vertical tube of handlebar, and a rear bicycle frame, it has a radial five-way pipe, said radial five-way pipe is connected with a rear fork component, the rear fork component can be used for assembling rear wheel which can be driven by driving device and can be rotated, the head tube is connected with a backward-extended subtube, on the radial five-way pipe a group a upward-extended and mutual-parallel offset middle tube and supporting vertical tube are fixedly welded, a saddle tube with saddle pad is inserted into the offset middle tube, the top and of said supporting vertical tube is connected with a hollow mother sleeve whose two ends are opened.

Description

technical field [0001] The invention relates to a bicycle, in particular to a telescopic bicycle capable of steplessly adjusting the track of the front and rear wheels. Background technique [0002] The bicycle was used as a means of transportation in the early period, and its function was simple and its shape was monotonous. Nowadays, bicycles have been promoted as leisure tools, and the structure of bicycles tends to be complicated, and the shapes are also diversified at the same time. Therefore, bicycles with different functions have come out one after another. The telescopic bicycle is a newly developed functional vehicle after the folding bicycle. Its function is that a bicycle can be adjusted between the front and rear wheels according to the size of the rider through the adjustment of the telescopic mechanism. For the most suitable wheelbase, to achieve the best riding effect; that is, to achieve the function of a bicycle for people of different sizes to ride togethe...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the rider's inability to effectively maintain balance and the risk of accidental collision in existing telescopic bicycles, the present invention provides an improved telescopic bicycle, which is not only suitable for riders of various age groups or different sizes It can be adjusted to the frame length suitable for personal riding, especially when storing, it can also be shrunk to a shorter length, which not only reduces the storage volume, but also can be placed in the luggage compartment of a general car as a short-distance transfer (such as between the parking lot and the office) or to the countryside for leisure rides

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