Vehicle righting device for expressway tunnel

The utility model relates to a vehicle righting device for an expressway tunnel. The device comprises a moving frame, a movable arm driving cylinder, a turnover rotating arm and a universal wheel mechanism, a rotating shaft is arranged at the front end of the moving frame and connected with the lower end of the turnover rotating arm, the lower end of the turnover rotating arm is a rotary connecting point, double rotating shafts are arranged at the rear end of the moving frame in parallel, and the movable arm driving cylinder is arranged between the double rotating shafts and the turnover rotating arm. A traction connecting point is arranged at the upper end of the turnover rotating arm, universal wheel mechanisms are distributed on the periphery of the movable frame, the movable frame is further provided with a manual pump valve set, each universal wheel mechanism comprises a fixing plate, a lifting cylinder and universal wheels, the lifting cylinders are vertically arranged on the movable frame through the f