Positioning structure and precast concrete member steel bar position control device

The utility model relates to the technical field of prefabricated concrete member reinforcing steel bars, in particular to a positioning structure and a prefabricated concrete member reinforcing steel bar position control device. The supporting seat is installed at the top end of the base, the top end and the bottom end of the supporting seat are open, the interior is hollow, inserting holes are formed in the front and rear end faces, threaded holes are formed in the top end, and sliding grooves are formed in the inner wall; the lower pressing plate is installed in the rectangular groove, the top end of the lower pressing plate is connected with vertical plates, the top ends of the vertical plates are connected with an upper pressing plate, a transverse plate is connected between the vertical plates, the bottom end of the transverse plate is connected with a semicircular block, and the arc-shaped surface of the semicircular block is connected with an arc-shaped plate; the multiple insertion holes are evenly f