Prestressed steel strand detection device

The invention relates to the field of bridge engineering, in particular to a prestressed steel strand detection device which comprises a base box and a workbench arranged on the top of the base box, one end of the top of the workbench is fixedly connected with a tensioning end base, and the other end of the top of the workbench is movably connected with a fixed end base matched with the tensioning end base. A support is connected between the tensioning end base and the fixed end base, a lead screw is rotationally connected to the center of the tensioning end base, a first steel wire hole is formed in the center of the lead screw, and a limiting groove is formed in the position, on the periphery of the first steel wire hole, of the lead screw. A limiting block on an aligning three-petal clamp is aligned into an included angle limiting groove of a first anchorage device, clamping is stable, the position of the three-petal clamp is prevented from being adjusted, the operation efficiency is high, the structure is