Treadle bicycle

Abstract

The invention belongs to the technical field of bicycles, and relates to a treadle bicycle. The bicycle comprises a front wheel, a rear wheel, a directional handle head, a frame, a seat and treadles. The bicycle is characterized in that transverse hinge shafts are arranged at the left side and the right side of the front part of the frame; a left treadle and a right treadle are arranged on the left and right hinge shafts; arc-shaped racks (part of a gear) are arranged at the tail parts of the left and right treadles; the arc-shaped racks at the tail parts of the left and right treadles engage with flywheel at two sides of the rear wheel of the bicycle; springs are arranged on the left and right hinge shafts and can be used for automatically upwards tilting the tail parts of the left and right treadles. According to the technical scheme, the treadle bicycle has the advantages that a pressing power generated by a rider treading the left and right treadles of the bicycle can be directly transmitted to one-way flywheels at two sides of the rear wheel of the bicycle and then converted the power for moving forwards; the transmission of medium parts is saved, so that the structure is simple, and the kietic energy loss can be reduced.

Description

technical field [0001] The invention belongs to the technical field of bicycles and relates to a pedal bicycle. Background technique [0002] At present, most of the transmission mechanisms of pedal bicycles are pedal-driven chains or passed to bicycle flywheels through other intermediate parts. The structure is relatively complicated, and its kinetic energy will be correspondingly attenuated. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a bicycle in which the flywheel of the bicycle is directly driven by the pedals. [0004] The technical scheme adopted by the present invention is that the bicycle includes front wheels, rear wheels, steering handles, vehicle frame, vehicle seat and pedals. Left and right pedals, there are arc-shaped racks (a part of the gear) at the tails of the left and right pedals, and the arc-shaped racks at the tails of the left and right pedals mesh with the flywheels on both sides of ...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the transmission mechanisms of pedal bicycles are driven by the pedals to drive the chain or pass to the bicycle flywheel through other intermediate parts. Its structure is relatively complicated, and its kinetic energy will be correspondingly attenuated.

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