Defensive expressway crossing anti-collision device

The utility model discloses a defensive highway crossing anti-collision device. Wherein the frame body is arranged below a road surface, and the upper opening end of the frame body is flush with the road surface; a first placing groove and a second placing groove which are arranged adjacently are formed in the frame body; and an impact plate is hinged to the top of the first hydraulic rod, the edge of the impact plate is rotationally connected to one side of the opening part of the frame body, an impact block matched with the bevel opening key groove is formed at the front end of the impact plate, and a buffer block used for protecting vehicle impact force is arranged on the front end face of the impact plate. According to the utility model, the hidden impact plate is arranged under the ground; when a vehicle enters or escapes, defensive impact is conducted on the vehicle by lifting the impact plate, meanwhile, the impacted vehicle can be effectively jacked up through the lifted top plate, the vehicle is prev