Novel assembly type anti-loose self-tapping screw

Novel assembly type anti-loose self-tapping screw

The utility model relates to the technical field of fasteners, in particular to a novel assembly type anti-loose self-tapping screw which comprises a conical tail, a bolt body, threads and a pan head, the conical tail is located at the bottom end of the bolt body, the threads surround the bolt body,...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HU ZHIHUI, GENG XIAOCHAO, ZHANG YAN, SANG YUNDE
Format: Patent
Sprache:chi ; eng
Schlagworte:
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
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Beschreibung
Zusammenfassung:The utility model relates to the technical field of fasteners, in particular to a novel assembly type anti-loose self-tapping screw which comprises a conical tail, a bolt body, threads and a pan head, the conical tail is located at the bottom end of the bolt body, the threads surround the bolt body, the pan head is located on the uppermost portion of the bolt body, a cross-shaped pan opening is formed in the top of the pan head, and internal threads are arranged on the lower portion of the pan head. A cylinder is further arranged on the bolt body, a detachable anti-loosening cushion block is arranged on the cylinder, a clamping nail is arranged on the lower portion of the cylinder, and a groove is formed in the upper portion of the cylinder. During screwing, the clamping nail below the anti-loosening cushion block enters an object, and the pan head is combined with the anti-loosening cushion block to realize loosening prevention. The self-tapping screw has the advantages that firstly, the self-tapping screw i