Gap structure connecting fastener and using method

Gap structure connecting fastener and using method

The invention discloses a gap structure connecting fastener and a using method, the connecting fastener comprises a bolt, an inner nut and an outer nut, a threaded rod of the bolt is provided with a first external thread, the inner nut is of a hollow threaded rod structure and is provided with a sec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JIN DI, LIU YILIN, HU BIYANG, LIANG FENGFEI, CHEN LI, MAO QINGSONG
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 invention discloses a gap structure connecting fastener and a using method, the connecting fastener comprises a bolt, an inner nut and an outer nut, a threaded rod of the bolt is provided with a first external thread, the inner nut is of a hollow threaded rod structure and is provided with a second external thread, a central through hole of the inner nut is matched with the threaded rod of the bolt, the outer nut is provided with a step-shaped inner threaded hole, and the threaded rod of the bolt is provided with a second external thread. The lower end of the inner threaded hole is a first inner threaded hole with a smaller diameter, the upper end of the inner threaded hole is a second inner threaded hole with a larger diameter, the thread directions of the first inner threaded hole and the second inner threaded hole are opposite, and the first outer thread of the bolt is matched with the thread of the first inner threaded hole of the outer nut. And the second external thread of the internal nut is matche