Subway segment bolt structure

• Main Author: CAI YUZHONG
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• Subjects: BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; EARTH DRILLING; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; GALLERIES; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LARGE UNDERGROUND CHAMBERS; LIGHTING; MECHANICAL ENGINEERING; MINING; SHAFTS; THERMAL INSULATION IN GENERAL; TUNNELS; WEAPONS

The utility model discloses a subway segment bolt structure which comprises a screw rod, a nut is in threaded connection with the middle position of the outer wall of the screw rod, meanwhile, a gasket is connected to the rear portion of the outer wall of the screw rod in a sleeved mode, and clamping plates are welded to the left side and the right side of the rear surface of the screw rod respectively. And a connecting hole is formed in the rear part outside the clamping plate. Through the arrangement of the connecting plate, the protective shell, the fastening block and the holding rod, the screw can be rotated and locked by holding the holding rod to rotate the connecting plate, and the fastening block can be taken down from the protective shell by holding the holding rod to rotate the fastening block in the opposite direction, so that the problem that the duct piece needs to be attached and fixed when the subway duct piece is installed is solved; in the prior art, the problem of poor fitting effect of sub