Foldable multi-state variable single-wheel and double-wheel bicycle

Abstract

The invention discloses a foldable multi-state variable single-wheel and double-wheel extreme sports bicycle, comprising a saddle and a handlebar. The saddle is connected with a rear frame through a saddle support rod; a main telescopic rod is mounted between the rear frame and a front frame; a first positioning beam is mounted on the front frame to control folding of the handlebar; a second positioning beam is mounted on the rear frame to control folding of the saddle support rod. The front frame is fitted with a steering unit that is connected with the handlebar; one end of the front frame is provided with a front wheel; the other end of the front frame is connected with one end, fitted with a rotary shaft, of the rear frame; the other end of the rear frame is provided with a rear wheel.The bicycle has a double-wheel mode and a single-wheel mode, has the daily transportation function, can meet the needs of outdoor amateurs, has no hand brake in the prior art, is more reliable in transmission and braking effect than a chain-driven bicycle, allows parts to be convenient to maintain and replace, and is convenient to carry, resistant to damage, long in service life, high in utilization rate and good in transmission stability.

Description

technical field [0001] The invention relates to a bicycle, in particular to a foldable multi-state single and double-wheel variable extreme sports bicycle. Background technique [0002] The types of existing bicycles include commuter bikes, folding bikes, mountain bikes and extreme sports bikes. The commuter bike has a simple appearance and is used for daily transportation; the folding bike has a foldable mechanical structure, which can be folded and placed, and is easy to carry; the mountain bike can meet the needs of different terrains; the extreme sports bike can meet the needs of various technical actions Do extreme sports. Existing unicycle is applied in daily walking instead of walking, stunt sports, and it is deeply liked by young friends with advantages such as volume is little, easy to carry. Existing extreme sports bicycles are of a great variety and are compact in structure. But their common shortcoming is: the function of bicycle and unicycle is too single, an...

AI Technical Summary

Problems solved by technology

Existing extreme sports bikes come in a wide variety and are compact

But their common disadvantages are: the functions of bicycles and unicycles are too single, and the structure is fixed and unchanged. For outdoor sportsmen with a wide range of interests, a bicycle or a unicycle can no longer meet its use requirements.

[0003] And existing bicycle basically adopts the mode of handbrake brake and chain to transmit power, and after the bicycle has been used for a period of time, the handbrake will appear insensitive phenomenon, causing accident easily; Pants also get lube from the chain

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