Material detection switch mechanism of crane

The utility model discloses a material detection switch mechanism of a crane, relates to a hoisting technology, and aims to solve the problems that a clamp tongue is separated from a second clamp arm due to the deformation of a tension spring, and a steel plate is easily separated from the second clamp arm, so that potential safety hazards exist, and adopts the technical scheme that the material detection switch mechanism comprises a U-shaped clamp body, a locking mechanism used for abutting against the pincer tongue to keep the pincer tongue abutting against the pincer body is connected to the pincer body in a sliding mode. The sliding pin slides along the guide groove and abuts against the arc-shaped part of the clamp tongue through the abutting part, so that the stability of the clamp tongue is improved, the clamp tongue is kept to abut against a steel plate all the time, the clamping capacity of the steel plate is improved, and the potential safety hazard that the steel plate is prone to falling off due t