Suspension rod nut tightening device

The utility model belongs to the technical field of constructional engineering, and discloses a suspender nut tightening device, which comprises a fastening device, a nut tightening device and a nut tightening device, the fastening device comprises a support rod and a mounting plate, the mounting plate is an L-shaped plate, one end of the support rod is fixedly connected with the inner side of the mounting plate, and a screwing piece for tightening a suspender nut is fixedly mounted on the outer side of the mounting plate; the screwing device comprises a connecting sleeve, a dowel bar and a force application rod, one end of the dowel bar is fixedly connected with the connecting sleeve, the other end of the dowel bar is fixedly connected with the force application rod, and the connecting sleeve is connected with the other end of the supporting rod. The device is convenient to assemble and disassemble, safe and reliable, and can be repeatedly used. During use, a lifting rod penetrates through the hexagon nut sl