Steel bar detection device for constructional engineering

The utility model relates to the technical field of constructional engineering detection, and particularly discloses a steel bar detection device for constructional engineering, which comprises a detection table, clamping mechanisms symmetrically arranged on two sides of the detection table and a vertical plate arranged between the clamping mechanisms, a transverse plate is arranged on the side wall of the vertical plate, an air cylinder is arranged on the transverse plate, and an arc-shaped block capable of pushing a steel bar is arranged on a piston rod of the air cylinder; the clamping mechanism comprises a mounting plate fixedly connected with the detection table and a clamping cylinder, a connecting frame is arranged at the free end of a piston rod of the clamping cylinder, first connecting rods are symmetrically hinged to the two ends of the connecting frame, second connecting rods are hinged to the first connecting rods, one ends of the second connecting rods are hinged to the mounting plate, and clamp