Prestressed concrete construction device for constructional engineering

The utility model discloses a constructional engineering prestressed concrete construction device which comprises a base, two sets of supporting columns are installed on the surface of the top of the base, a top plate is arranged at the ends, away from the base, of the supporting columns, and a lifting mechanism is arranged at the bottom of the top plate. The lifting mechanism is composed of sliding blocks, a moving plate, a motor, a gear A, a gear B, a rotating shaft, a screw rod and a hydraulic rod, a sliding groove A is formed in the surface of the outer side wall of the supporting column, the moving plate is arranged at the bottom of the top plate, the sliding blocks are installed on the surface of the outer side wall of the moving plate, the sliding blocks are located in the sliding groove A, and screw holes are formed in the sliding blocks. And two sets of motors are arranged in the base, the power output ends of the motors are connected with gears A, and one sides of the gears A are in meshed connectio