Bridge crash barrier with buffering structure

The invention discloses a bridge crash barrier with a buffering structure. The bridge crash barrier with the buffering structure comprises two protective plates installed on a bridge deck, the two protective plates are fixedly connected to the two side surfaces of the bridge deck correspondingly, the protective plates are in a ''7'' shape, buffering plates are arranged on the inner side surfaces of the protective plates, a plurality of guide devices are arranged on the inner surfaces of the buffering plates, and the upper ends and the lower ends of the guide devices are correspondingly connected with sliding grooves formed in the bridge deck and the protective plates, the guard devices include sliding shafts, the top ends of the slide shafts extend into the sliding grooves formed in the protective plates, the lower ends of the slide shafts extend into the sliding grooves formed in the bridge deck, and the sliding shafts are rotatably connected with drums through fixed rods fixedly connected on the outer sides