Charging pile based on smart city

A charging pile based on a smart city comprises a charging plug of the charging pile, a sleeve slidably sleeves the outer side of the charging plug, a connecting pipe is arranged at one end of the sleeve, a face gear is rotatably mounted at the other end of the connecting pipe, one side of the face gear is fixedly connected with one end of a rotating pipe, and one end of the charging plug is electrically connected with one end of a wire. The other end of the wire sequentially penetrates through the sleeve, the connecting pipe and the rotating pipe and is electrically connected with the charging pile, a lead screw corresponding to the face gear is rotatably mounted on the side face of the connecting pipe, and a gear is fixedly mounted at one end of the lead screw and meshed with the face gear. The automobile charging plug is simple in structure and ingenious in conception, the charging plug can be separated from an automobile jack by pulling the wire, meanwhile, the charging plug is contained in the protective