Fixed-torque anchor rod nut

• Main Authors: ZHANG MINGLEI, PANG HONG, GAO LINSHENG, GUO JINHUI
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• 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 relates to the technical field of fasteners, and discloses a fixed-torque anchor rod nut which comprises a nut body. The connecting protrusion is fixedly connected to the bottom of the nut body. And the external loading section is fixedly connected to the bottom of the connecting bulge. The connecting protrusion is a protrusion with rated twist-off torque, and the external loading section is in the shape of a hexagonal nut. The nut body is a common anchor rod nut, the nut body, the connecting protrusion and the external loading section are made of one of metal and non-metal materials, a plurality of rectangular protrusions are arranged on the connecting protrusion, and the external loading section is hexagonal or square in appearance. The interior of the external loading section is free of threads. Different twisting-off torques can be set by adjusting the length or the thickness of the connecting protrusion, and therefore accurate control over the torque of the anchor rod is achieved. The s