An electric bicycle with a front derailleur installed on the right rear fork

Abstract

The present invention uses the combination of the dead fly, the bearing and the front dial to form an electric bicycle with a right rear fork and a front dial. For the service life of bicycle riding, use the front derailleur to place the lower chain, so that the chain is idle on the bearing, so that the electric bicycle can be ridden purely electric without hindrance, and use the front derailleur to place the lower chain on the dead fly to assist Or bicycle-style riding electric bicycles, and the rear fork of electric bicycles can use double supports, the tooth ratio ratio of crankset and dead fly has a larger space, and the diameter of the front and rear wheels of electric bicycles can be configured, or it can be smaller.

Description

technical field [0001] The invention relates to an electric bicycle which is applied by replacing the flywheel by the combination of dead fly, bearing and front derailleur. Background technique [0002] Among the existing electric bicycles, in the pedal pedal riding application, the central axle is a single chainring, and there are many riding application brands that use a single flywheel on the rear wheel, such as Aokoma, Bidevon, etc. The role of the flywheel , it can be used for riding in pedal pedals, and when pure electric riding, it is like a neutral gear to ensure that the cranks, pedals, etc. do not cause danger from the rotation of the rear wheel, but the flywheel is used in this way and the rear wheel has always been working synchronously , the flywheel is broken quickly, and the flywheel is broken and difficult to disassemble, so that the cyclist gives up the application of pedal pedal riding; Chinese patent application: electric bicycle with rear axle installatio...

AI Technical Summary

Problems solved by technology

[0002] In the existing electric bicycles, in the application of pedaling and pedaling, the center shaft is a single chainring, and there are many riding application brands that use a single flywheel on the rear wheel, such as Aucma, Bidwin, etc. The role of the flywheel , it can be used in pedals and pedals, and in pure electric riding, it is like a neutral position, ensuring that the crank, pedals, etc. will not cause danger from the rotation of the rear wheel, but the flywheel is always working synchronously with the rear wheel , the flywheel broke down quickly, and the flywheel was broken and difficult to disassemble, so that the rider gave up the application of pedal pedal riding; Chinese patent application: electric bicycle with bearings installed on the rear axle and rear derailleur, the paper proposes a pure electric bicycle At the same time, the rear derailleur puts the chain on the bearing to prolong the service life of the flywheel, but the rear derailleur has a length application. If the radius length of the rear wheel is less than the application length of the rear derailleur, the rear derailleur cannot be used. Furthermore, the electric bicycle If the rear fork uses double supports, the application of the rear derailleur will be difficult

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