Hand-pulled front-drive power-assisted pedal bicycle

Abstract

The invention discloses a hand-pulling front-driving assistance pedal bike, and belongs to the technical field of bikes. The hand-pulling front-driving assistance pedal bike resolves the technical problems that a hand-pulling rear driving force-transmission distance is long, and in the early period when a rider gets on the bike and rides, a bibcock vibrates and the rider can not hold a handle stably. The hand-pulling front-driving assistance pedal bike is characterized in that the upper end of a secondary front fork is connected with the bibcock in a telescope mode, and the lower portion of the secondary front fork is fixedly connected with a front fork through a first rotary shaft and can rotate front and back around the first rotary shaft; the middle of a herringbone gear shifting lever is connected with the front fork through a second rotary shaft, the upper ends of an upper pulling rod and a lower pulling rod are connected with the front half portion of the herringbone gear shifting lever through a first adjustable joint, and the lower ends of the upper pulling rod and the lower pulling rod are connected with the lower end of the secondary front fork through a second adjustable joint. The two ends of the herringbone gear shifting lever are fixedly connected with the two ends of an accelerating chain, and the middle section of the accelerating chain is connected with a gear coaxial with a front wheel. The hand-pulling front-driving assistance pedal bike has the advantages that a rear wheel is driven by pedals, hand-pulling assistance driving of the front wheel is added, the structure is simple, operation is flexible, in the early riding period of a bike beginner, the bibcock is held stably and does not vibrate, and safety risks are avoided.

Description

technical field [0001] The invention relates to a pedal and hand-pulled bicycle, in particular to a pedal bicycle which is driven and assisted by a hand-pulled front, and belongs to the technical field of bicycles. Background technique [0002] Bicycle is the means of transportation and body-building tool commonly used by people, and has many advantages such as environmental protection, pollution-free, and easy to use. However, it still feels strenuous during long-distance travel, riding against the wind or climbing hills, and has disadvantages such as high physical energy consumption and insufficient speed. And only have both feet to step on motion when riding, and both hands keep still basically, and both hands are often frozen and numb in the cold season. For the problems referred to above, the patent No. is ZL200720001556.8, and the name is called the Chinese patent of the pedal hand-pulled bicycle, which can drive the bicycle by both pedal and hand-pulled modes simulta...

AI Technical Summary

Problems solved by technology

Not only the structure is complicated, but also when the bicycle handlebar is turning, the steering semi-circle is easy to rub against other adjacent parts, which greatly affects the flexibility and safety of bicycle turning and riding

Chinese patent ZL201010237084.2 reports the improvement of the steering mechanism of the pedal hand-pulled bicycle. This invention has a simple structure and flexible riding operation when turning. Equal long-distance force transmission, driven by the rear wheel coil spring fly assembly, the force transmission distance is long, beginners may feel that the faucet is shaking and unstable at the beginning of riding, and there are potential safety hazards, and the structure can be further improved to improve riding safety sexual necessity

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