Hardness detection equipment for bridge steel frame

The utility model relates to hardness detection equipment for a bridge steel frame, and belongs to the technical field of hardness detection, the hardness detection equipment comprises a device body, and the device body is provided with a mounting table; a fastening assembly is arranged at the top of the mounting table; and the fastening assembly comprises a placing table fixedly connected to the top of the mounting table, a first arc-shaped plate is arranged at the top of the placing table, and a first passing opening is formed in the first arc-shaped plate. By arranging the fastening assembly and adjusting the positions of two first bolts and a second bolt, two first fastening blocks and a second fastening block are made to be close to the three faces of the steel needing to be detected, then the two first bolts and the second bolt are rotated to extrude the three faces of the steel needing to be detected, and then the steel needing to be detected is clamped. Therefore, the effect of conveniently fixing irr