Bicycle

Abstract

The invention relates to a bicycle. The bicycle comprises a frame, a front fork, a front wheel, handlebars, a saddle and a pedal plate, and further comprises a transmission case, wherein the front fork is arranged at the front end of the frame, the front wheel is arranged at the lower end of the front fork, the handlebars are arranged at the upper end of the front fork, the saddle is arranged on the frame, the pedal plate is arranged on the frame through a centre shaft in a rotating mode, and the transmission case is used for installing rear wheels; the rear end of the frame is arranged abovethe transmission case through a buffer structure and swings left and right relative to the transmission case, and the transmission case is provided with at least one pair of rear wheels; the pair of rear wheels located on the left side and the right side of the transmission case are arranged on the transmission case in a rotating mode through a same rotating shaft; the centre shaft drives the rotating shaft to rotate through chain transmission; and a hydraulic adjusting mechanism for adjusting the height of the transmission case from the ground is arranged in the transmission case. The bicyclehas the advantages that the stability and the trafficability of a bicycle body can be improved, in addition, an axle and the transmission case are stressed through hydraulic pressure, so that bumps and vibration of the frame in the running process can be reduced, good stability can also be achieved on uneven roads, the stability is good, the trafficability is high, and the bicycle is comfortableto ride.

Description

Technical field [0001] The invention relates to the technical field of bicycles, in particular to a bicycle. Background technique [0002] Bicycles are commonly used travel tools in daily life. Bicycles have been invented for nearly two hundred years. People have continuously modified bicycles and evolved to existing bicycles. The improvement of existing bicycles is generally based on materials. In terms of application and power source, few improvements have been made in the overall structure and stability of the bicycle. The common bicycle on the market is a two-wheel device, which is prone to uneven travel when driving, especially when the speed of the vehicle slows down, the bicycle will fall uncontrollably. Also due to the poor stability, it is also very difficult to learn to ride a bicycle. It often takes a lot of falls to learn. [0003] For example, the Chinese utility model with patent number 012144711 discloses a bicycle, including a faucet, a front wheel and a tripod. T...

AI Technical Summary

Problems solved by technology

Commonly seen bicycles on the market are two-wheeled devices, which tend to be unstable when driving, especially when the speed slows down, the bike will fall down uncontrollably

Also because of the poor stability, it is also very difficult when learning to ride a bicycle for the first time, and it is often necessary to fall a lot to learn

[0003] For example: the Chinese utility model that the patent No. is 012144711 discloses a kind of bicycle, comprises car faucet, front wheel and tripod, and frame rear portion is provided with flywheel, and the little fly coaxial with this flywheel, and there are big fly, small fly on the axle. There are big fly and small fly on the shaft. Wheels are installed at both ends of the shaft. The small fly and the front big fly are driven by a chain. The front big fly and the pedal are coaxial. The fly is driven by a chain, and the big fly is installed on the other side of the main shaft of the pedal. The small fly and the big fly are driven by a chain. The shaft is supported by a bearing, and the bearing seat is fixed on the rear frame. This bicycle adopts a Five wheels, but poor body stability when turning or driving on uneven roads, easy to roll over

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