The invention discloses a safety type bottom fork for an electric bicycle. A safety device is arranged between the bottom fork and a frame, the safety device comprises a frame connecting plate which is fixedly connected with the frame and a bottom fork connecting plate fixedly connected with the bottom fork, and the frame connecting plate and the bottom fork connecting plate are each provided with a connecting hole, wherein one connecting hole is an arc-shaped hole, and the other connecting hole is a circular hole; a rod body part of a fastener penetrates through the two connecting holes and connects the frame connecting plate with the bottom fork connecting plate, and the frame connecting plate and the bottom fork connecting plate can do relative movement along the arc-shaped hole through the rod body part of the fastener. By means of the safety type bottom fork for the electric bicycle, the shock absorption function is not affected in normal running, and if a fracture happens to the joint of the bottom fork and the frame, by means of the safety device, the safety effect is achieved immediately; at the moment, the electric bicycle can be ridden slowly and pushed smoothly, and the situation that due to the fact that lugs of the frame and the bottom fork break suddenly, a rear wheel of the electric bicycle is separated from the frame, and a riding person falls over and is injured is avoided.
Safety type bottom fork for electric bicycle
2015-11-18
Patent
Electronic Resource
English
IPC: | B62K Fahrräder , CYCLES |
Bottom fork and motor connection structure of electric bicycle
European Patent Office | 2015
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