Linkage mechanism and bicycle

Abstract

The invention discloses a linkage mechanism and a bicycle, relates to a mechanical transmission structure, and particularly relates to a seesaw structure. Two pedals are reversely linked to drive thebicycle to move. The linkage mechanism comprises a frame, a pedal lever shaft, a rear shaft, two pedal lever, two racks, two gears, a supporting column and a shifting lever, wherein the pedal lever shaft and the rear shaft are arranged on the frame, one end of the left pedal lever is connected with the rack, the other end is connected with the pedal, the rack is meshed with the gear on the same side, the gear is connected with the rear shaft through a one-way bearing, a flat hole is formed in the end, which is connected with the pedal, of the pedal lever, the right pedal lever and parts connected with the right pedal lever are symmetrical to those on the left pedal lever, a supporting column is arranged between the two pedal lever on one side with the pedal, one end of the supporting column is fixedly connected with the frame, a cylinder is arranged at the end part of the other end of the supporting column, a hole in the middle of the shifting lever is hinged to the cylinder on the supporting column, and two ends of the shifting lever respectively penetrate through the flat holes in the left pedal lever and the right pedal lever and can slide in the two flat holes.

Description

Technical field: [0001] The invention relates to a mechanical transmission structure, in particular to a mechanical transmission mechanism that uses a seesaw structure to reversely link the swings of two pedals and pedals to drive a bicycle (or pedal boat). Background technique: [0002] Existing bicycles are mainly pedaled in circles, and the effective utilization rate of the pedaling force is not high, especially when the pedals rotate to the vicinity of the dead point on an uphill road, it is difficult to ride, and the swing pedaling bicycle with a higher utilization rate of the pedaling force is patented Among them, rack gears or bevel gears are used to link the two pedals. The structure is more complicated, and the cost and weight increase. There are also ropes to connect the two pedals to make them linked, but it feels unreliable. Invention content: [0003] The object of the present invention is to overcome the disadvantages of the above-mentioned prior art, and pro...

AI Technical Summary

Problems solved by technology

[0002] Existing bicycles are mainly pedaled in circles, and the effective utilization rate of the pedaling force is not high, especially when the pedals rotate to the vicinity of the dead point on an uphill road, it is difficult to ride, and the swing pedaling bicycle with a higher utilization rate of the pedaling force is patented Among them, rack gears or bevel gears are used to link the two pedals. The structure is more complicated, and the cost and weight increase. There are also ropes used to connect the two pedals to make the linkage, but it feels unreliable.

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