1results about How to "Realize electronic" patented technology

A bicycle independent gearshift includes a box, a toothed disc, a gearshift component and a gearshift handle mounted on a handlebar. The box is fixed at the joint of a frame vertical tube and a rear lower fork, and the toothed disc is mounted on a crank on the left side of the bicycle. A gearshift wheel is arranged at the upper left side of the box and connected with the gearshift handle through a gearshift line. An input wheel is arranged at the lower left side of the box and connected with the toothed disc through a transmission member. An output wheel and a supporting arm are arranged at the right side of the box and connected with a freewheel of the bicycle through a transmission member. The gearshift component is mounted in the box and includes a gearshift gear, a gearshift disc and a gearshift member. The gearshift gear and the gearshift disc are axially engaged to change a transmission ratio. The gearshift member is provided with a buffer structure to ensure the convenience and smoothness of gearshift. The invention has simple structure, low cost and long service life. It is not only suitable for human-powered bicycles and tricycles, but also suitable for pedal driving systems of electric vehicles or moped, and can be used in mechanical gearshift occasions in other fields.