Automatic acceleration tandem bicycle

Abstract

The invention provides an automatic acceleration tandem bicycle, and relates to a vehicle. The automatic acceleration tandem bicycle comprises a front driving mechanism, a rear driving mechanism and a bicycle frame, wherein the front driving mechanism comprises a front tread mechanism and a crankset; the crankset and the tread mechanism are connected to the bicycle frame; the rear driving mechanism comprises a rear wheel axle, a first free wheel, a rear tread mechanism and an acceleration mechanism; the first free wheel is in transmission connection with the crankset through a chain; the acceleration mechanism comprises a circular encloser, and the chain is fixedly connected to the inside wall of the circular encloser; the chain is fixed on one circle along the side wall, and a first gear is arranged in the circular encloser; the first gear is meshed to the chain; a first rotating shaft is arranged on the bicycle frame, a second gear is arranged on the first rotating shaft, and the first gear is fixed on the first rotating shaft; the circular encloser is fixed to a rear rotating shaft, and a bearing is arranged between a rear wheel axle and the bicycle frame; the rear wheel axle can rotate freely, and a second free wheel is fixedly connected to the other end of the hub of a rear wheel; the second gear is in transmission connection with the second fly wheel through the chain. The bicycle is effortlessly ridden, and is high at riding speed.

Description

technical field [0001] The invention relates to a vehicle, in particular to the technical field of manufacturing a tandem bicycle. Background technique [0002] In the existing tandem bicycles, when riding, two people need to ride hard at the same time, and need basically the same coordination. Riding is relatively labor-intensive, the riding speed is slow, and the driving speed of both feet is limited, resulting in a low riding speed. Generally below 20km / h, therefore, people often change to riding electric bicycles or motorcycles in pursuit of speed. However, the batteries of electric bicycles will cause environmental pollution, and motorcycles need to consume fuel, a non-renewable resource. Contents of the invention [0003] The purpose of the present invention is to provide a kind of sub-increasing tandem bicycle with simple structure and easy riding. [0004] The present invention includes a front drive mechanism, a rear drive mechanism, and a vehicle frame. The fron...

AI Technical Summary

Problems solved by technology

[0002] In the existing tandem bicycles, when riding, two people need to ride hard at the same time, and need basically the same coordination. Riding is relatively labor-intensive, and the riding speed is slow. The driving speed of both feet is limited, resulting in a low riding speed. Generally, it is below 20km / h. Therefore, people often change to ride electric bicycles or motorcycles in order to pursue speed. However, the batteries of electric bicycles will cause environmental pollution, and motorcycles need to consume fuel, a non-renewable resource.

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