Dual-power trochal disk for electric bicycle

• Main Author: GAO SHUKE
• Format: Patent
• Language: Chinese; English
• Published: 12.08.2009
• Subjects: CYCLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; PERFORMING OPERATIONS; POWERED PROPULSION OF SLEDGES OR; RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES; TRANSPORTING

A double drive wheel disc of an electric bicycle belongs to the technical field of bicycles, aiming to solve the problem of hard sledding of manpower drive. The technical scheme is that the wheel disc comprises an internal sleeve, a middle sleeve and an external sprocket wheel, which are sleeved from inside to outside, wherein the inner sleeve is fixed on a central shaft of an electric bicycle, and balls and a pawl are arranged between the internal sleeve and the central sleeve. The external sprocket wheel is connected with an output sprocket wheel of a motor through a chain, and balls and a pawl are arranged between the external sprocket wheel and the middle sleeve, a driving sprocket wheel is fixed on one side of the middle sleeve, and the driving sprocket wheel can form a driving relation with a bicycle flywheel through a chain. The double drive wheel disc can facilitate electric bicycles to be driven by manpower like a common bicycle, and greatly increases the comfort of driving the electric bicycles.