Waterway transportation hull protection device

The invention discloses a waterway transportation ship body protection device, and relates to the technical field of ship body protection, and the technical scheme is characterized in that the waterway transportation ship body protection device comprises a damping box body and a power transmission box body, and the power transmission box body is installed at the bottom of the damping box body; a sliding groove with an opening in one end is formed in the damping box body, and a buffering mechanism is arranged in the sliding groove. The buffering mechanism comprises a rack and a first damping spring, one end of the first damping spring is fixedly connected with the bottom of the sliding groove, the other end of the first damping spring is fixedly connected with the end of the rack, and the two sides of the rack are both tooth surfaces. A push rod is arranged at the end, away from the first damping spring, of the rack, and an air bag baffle is arranged at the end, away from the rack, of the push rod. According t