Anti-collision buffer device for rail transit engineering vehicle

The invention discloses an anti-collision buffer device for a rail transit engineering vehicle, and particularly relates to the technical field of rail transit, the anti-collision buffer device comprises a protective frame, a fixing plate is arranged at one end of the protective frame, connecting arms are symmetrically fixed to the two ends of the top of the fixing plate, and a connecting plate is arranged between the top ends of the two connecting arms; and a protection plate. The protective plate, the protective frame and the fixed plate are arranged to form an anti-collision frame body, the anti-collision frame body is provided with a supporting column, a second traction arm, a movable plate, a sliding block, a first spring and other structures, and when collision occurs, multiple sets of buffering structures can synchronously conduct buffering movement, so that buffering protection is stably and effectively achieved; and under the cooperation of structures such as the first traction arm, the jacking colum