Convenient driving device for bicycle

Abstract

The invention provides a convenient driving device for a bicycle. The convenient driving device consists of a convenient fly wheel (1), a main drive rope (2), a slave drive rope (3), four pulleys (4), a pedal (5) and a pulley spring seat (6), wherein the convenient fly wheel is provided with a middle partition plate, an inner-side baffle, an outer-side baffle, an inner-side semicircular slot and an outer-side semicircular slot; the main drive rope (2) is fixed at the bottom of the inner-side semicircular slot; the slave drive rope is fixed at the bottom of the outer-side semicircular slot; the four pulleys are respectively fixed at the middle part and the front end of a bicycle body in the up-and-down direction; the main drive rope is wound anticlockwise four laps in the inner-side semicircular slot, is wound around one pulley and is connected with a rear hook of the pedal; the slave drive rope is wound clockwise a half lap in the outer-side semicircular slot, is wound around one pulley and the pulley spring seat (6), and then is connected with a front hook of the pedal. Two convenient driving devices disclosed by the invention are respectively arranged on the left side and the right side of the bicycle. Through the adoption of the convenient driving device, the bicycle speed and the slope climbing force can be regulated by regulation of pedal tramping speed and distance, and abrasion of corresponding components is also avoided, so that the service life of the convenient driving device is prolonged.

Description

technical field [0001] The invention relates to a bicycle trouble-saving driving device, which is used for driving the bicycle. Background technique [0002] Bicycle has been born for more than 100 years. It brings great convenience to human life. At present, there are many kinds of bicycle driving devices and transmission devices on the market. The more complicated it is, the more expensive it is. The same is true for two-wheeled bicycles, three-wheeled rickshaws and mopeds. For example, Lu Yumin, the inventor of the fastest bicycle in the world, invented a device that uses a chain, a large chainring and a flywheel to drive the wheels by stepping on a big crutch with both feet. The patent number is 200820091303.9. Long 175cm; and British Carbon Power Co., Ltd., and the bicycle planetary wheel housing gearbox device invented by its inventor R. Toppey, patent application number 200480014501.X, international application number PCT / GB2004 / 0009412004.3.5; Sophisticated drive ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a trouble-free driving device for bicycles, which can overcome the disadvantages of existing bicycle driving devices, such as many parts of the transmission device, complicated operation, high cost, relatively heavy and easily damaged, and short service life.

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