Anti-loosening fastening assembly

• Main Author: YUAN HUABIAO
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The anti-loosening fastening assembly comprises an expansion bolt, an expansion bolt and a nut, the expansion bolt is provided with an internal thread through hole in the axial direction, the lower portion of the expansion bolt is provided with a plurality of first open grooves, the first open grooves extend from the end face of the expansion bolt to the middle of the expansion bolt, and the nut is arranged in the first open grooves. The expansion bolt is in threaded connection with an internal thread through hole of the expansion bolt, the nut is in threaded connection with the expansion bolt, and at least two second open grooves distributed in the axial direction are formed in the outer wall of the nut. The anti-loosening fastening assembly provided by the utility model is simple to process and convenient to operate, and has good anti-loosening performance. 本实用新型提供了一种防松脱紧固组件，包括膨胀螺栓、胀紧螺栓和螺母，所述膨胀螺栓沿轴向设有内螺纹通孔，所述膨胀螺栓下部设有多条第一开槽，所述第一开槽从所述膨胀螺栓的端面起向中部延伸，所述胀紧螺栓与所述膨胀螺栓的内螺纹通孔螺接，所述螺母与所述膨胀螺栓螺接，所述螺母外壁设有至少两条沿轴向排布的第二开槽。本实用