Rear vibration reducing mechanism for electric bicycle

The utility model relates to a rear vibration reducing mechanism for an electric bicycle, which comprises a frame and a vibration absorber, wherein the frame comprises a main beam with a standpipe and a base pipe, and the rear part of the frame is also provided with a rear bracket which is in an entire v-shaped bent pipe shape. The upper opening end of the rear bracket is arranged on the upper part of the base pipe and can move in a front and back direction, the lower opening end of the rear bracket is fixedly connected with a center tap of which the front part is coaxially hinges with the main beam and the base pipe, and the rear end of the rear bracket is provided with connecting pieces of a rear shaft groove. The vibration absorber is composed of two swing arms, a damping spring and a spring base, and the two swing arms are arranged on the front part of both sides of the base pipe. Upper ends of the swing arms which are hinged on the base pipe, are connected with the front part of the rear bracket. The damping spring is arranged in the spring base, and the upper end and lower end of the spring base are separately hinged on lower front ends of the swing arms and a stiffening beam connected with the main beam. The utility model has the characteristics of reasonable stress, compact structure and good vibration reducing effects, and the service life of the damping spring can be prolonged.