Stepping three-wave guardrail transformation structure convenient for bridge maintenance

The utility model discloses a step three-wave guardrail transformation structure convenient for bridge maintenance. The step three-wave guardrail transformation structure solves the problem of hindrance in daily inspection and special safety inspection of a bridge. The three-wave guardrail comprises stand columns and a three-wave guardrail body, the three-wave guardrail body between the two stand columns is disconnected and forms a notch for people to pass through, a reinforcing stand column is fixedly installed at the position of the right three-wave guardrail body and fixedly connected with the right three-wave guardrail body through a blocking and preventing block, and a first headless bolt is welded to the back face of the right three-wave guardrail body and mechanically connected with the blocking and preventing block; the movable panel is in horizontal sliding fit with the three-wave guardrail on the left side and the three-wave guardrail on the right side, and the first buckle and the second buckle lim