Self-tightening bolt

The utility model discloses a self-tightening bolt. The self-tightening bolt comprises a bolt main body, a bolt head, a tightening part and a thread structure, the self-tightening stud comprises a stud body, a tightening part and a thread structure. The tightening part comprises an outwards-warped b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHU ZHENWU, ZHU ZHIYIN
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 discloses a self-tightening bolt. The self-tightening bolt comprises a bolt main body, a bolt head, a tightening part and a thread structure, the self-tightening stud comprises a stud body, a tightening part and a thread structure. The tightening part comprises an outwards-warped body and a deformation pre-tension seam. And the tightening part is divided into a plurality of outwards-warped bodies by the deformation pre-tension seams. And the outer warped body is provided with a threaded structure. The parts, close to one end of the bolt head or the stud body, of the outwards-warped bodies cling to each other. The parts, away from the bolt head or the stud body, of the outwards-warped bodies are separated. The utility model provides a scheme. The self-tightening bolt or the self-tightening stud passes through the outwards-warped body on the tightening part, so that the bolt or the stud is continuously stressed along the direction that the bolt or the stud is arranged in the threaded hole afte