Steel structure mounting component

The utility model provides a steel structure installation component, and relates to the field of steel structures. The steel structure mounting component comprises a steel structure frame, the right end of the inner wall of the steel structure frame is fixedly connected with a limiting block, the right end of the limiting block is in contact with a moving block, a power shaft is inserted in the moving block and located at the right end of the limiting block, and the outer surface of the power shaft is sleeved with a fixing ring below the moving block. The bottom end of the power shaft is fixedly connected with a driving gear below the fixing ring, and the outer surface of the driving gear is sleeved with a rack. When the steel structure mounting component is used, a cross beam is placed on a guide rail and a rail groove, a clamping rod is driven by an internal hexagonal wrench to rotate, the clamping rod drives a lantern ring to move, the lantern ring drives the rail groove to approach the cross beam, a fixin