Edge hole sleeving structure for sleeving horizontal rod and protection device of edge hole sleeving structure

The utility model discloses a near-edge hole sleeving structure for sleeving a horizontal rod and a protection device of the near-edge hole sleeving structure. The near-edge hole sleeving structure comprises an L-shaped plate, one end of the screw rod is fixedly connected with the L-shaped plate; the end, away from the L-shaped plate, of the screw is sleeved with the steel sleeve. The rectangular frame is fixed on the outer side wall of the steel sleeve; the fastening nut is in threaded connection with the end, away from the L-shaped plate, of the screw rod, and the fastening nut abuts against the steel sleeve, so that the L-shaped plate and the rectangular frame form a clamping opening for clamping the edge of the edge hole. The reinforcing structure suitable for edge hole protection is produced by adopting the L-shaped and rectangular section steel plates, the screw rod and the fastening nut, the L-shaped steel plate is welded at the front section of the screw rod, the middle of the screw rod is welded with