Screw rod extension fixture

The utility model discloses a screw rod extension fixture, including nut and extension rod, the extension rod rigid coupling is at the outer wall of nut, and is on a parallel with the axle center of nut, and the part that exceeds the nut at least on the extension rod is equipped with the screw. The utility model discloses fracture screw rod to on the concrete vertical member prolongs, props up the stability of the possibility of establishing the in -process and can effectually reduce the wrong platform of concrete, the mould that expands, increase template in the template, the effectual incidence of stopping the conflagration of while, convenient operation, repeatedly usable.