Bicycle without chain wheel

Abstract

The invention relates to a bicycle without chain wheel, which is the same as or similar to the conventional bicycle in terms of structures of a front wheel, the shaft of the front wheel, a yoke, a connection cylinder and a handle bar as well as the assembly relationship; a frame is formed by connecting an arched beam, an oblique bracket, a saddle supporting bracket and the connecting cylinder, and the saddle is fixed on the top of the supporting bracket; the shaft of a rear wheel is fixed at the tail end of the oblique bracket, the rear wheel is a wheel or an electric motor which is the same as or similar to the wheel of the current bicycle, and the electric motor is an outer-rotor type electric motor provided with the functions of an electric generator and a motor and can be used as an electric generator and a motor alternately; the front end of a tail frame is connected with the upper part of the saddle supporting bracket, the lower part of the tail frame is connected and supported by two support rods, and the bottom ends of two support rods are respectively fixed on two ends of the shaft; a controller and a storage battery are in the tail frame, the controller is connected with the storage battery by lead and the electric motor is connected with the controller by lead. A middle wheel is mounted at the connection part of the oblique bracket and the saddle supporting bracket, foot pedals are mounted at the two ends of a middle wheel shaft, and the middle wheel is slightly bigger than both front and rear wheels. The bicycle without chain wheel has light, quick and reliable performance and a promising prospect.

Description

technical field [0001] The invention relates to bicycle technology, in particular to a chainless bicycle. Background technique [0002] Existing bicycle of all kinds big and small all must have sprocket drive mechanism. The sprocket transmission mechanism can increase the rotational speed of the wheels, and can make the force of the person and the gravity of the whole vehicle (including the gravity of the person) reach a coordinated balance, which meets the requirements of ergonomics. But sprocket drive friction force is big, efficiency is low, chain is easy to damage, chain drop occurs occasionally, and sprocket drive mechanism needs to be lubricated frequently, and lubricating oil often can dirty people's underwear or footgear. Contents of the invention [0003] In order to overcome the above-mentioned defects of the existing bicycles, the present invention designs a bicycle without sprockets, which is light in use and high in reliability. [0004] The present inventio...

AI Technical Summary

Problems solved by technology

However, the friction of the sprocket drive is high, the efficiency is low, the chain is easily damaged, and the chain is dropped from time to time. The sprocket drive mechanism needs to be lubricated frequently, and the lubricating oil often stains people's underwear or shoes and socks

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