Rebar welding axial bending angle detector

The utility model discloses a steel bar welding axial bending angle detector, and belongs to the technical field of constructional engineering detection. The device comprises a measuring scale, the bottom of one side of the measuring scale is fixedly connected with a lower fixed value pointer, and one side of the measuring scale is fixedly connected with an upper fixed value pointer. Before the bending angle of the reinforcing steel bar is measured, the pull ring is pulled to move upwards, the pull ring drives the pressing plate to move upwards, the pressing plate stretches the elastic piece, the transmission rod loses pressure, then the turning plate and the positioning plate lose positioning, and when the reinforcing steel bar is attached to one side of the lower fixed value pointer and the upper fixed value pointer, the bent end of the reinforcing steel bar pushes the movable pointer to move; after the moving pointer finishes moving, the pull ring is loosened, the pressing plate restores to the original po