Self-locking fastener for automobile parts

• Main Author: ZHONG ZHIWU
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2022
• 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 utility model discloses a self-locking fastener for automobile parts, and relates to the technical field of automobile bolt fasteners. The device comprises a screw rod, one end part of the screw rod is in threaded connection with a hexagon nut, and two arc-shaped guide seats are in limiting sliding fit with the inner side of the hexagon nut; the end part of the arc-shaped guide seat is sleeved with a meshing end; a compression spring is arranged between the interior of the arc-shaped guide seat and the end part of the meshing end in a sleeving manner; the end, away from the arc-shaped guide base, of the meshing end is in meshing transmission with the screw. The arc-shaped guide seat is matched with the limiting annular grooves in the two sides of the interior of the annular guide groove in the inner side of the hexagon nut through the limiting guide ribs, and when the meshing end and the limiting groove channel in the circumferential side face of the screw rod are limited mutually, under the action of the