Bolt of dual-drive tightening structure

A bolt of a dual-drive tightening structure comprises a first driving part, an attaching part, a screw rod part, a second driving part and a guiding part. The projection shape of the first driving part is a regular polygon, and one end of the first driving part is connected with one end of the fitti...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TANG NINGBO, SUN MING
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:	A bolt of a dual-drive tightening structure comprises a first driving part, an attaching part, a screw rod part, a second driving part and a guiding part. The projection shape of the first driving part is a regular polygon, and one end of the first driving part is connected with one end of the fitting part; the outer diameter value of the screw part is smaller than that of the attaching part, one end of the screw part is connected with the other end of the attaching part, and the other end of the screw part is connected with the second driving part; the projection shape of the second driving part is a regular polygon, and the outer diameter value of the second driving part is smaller than that of the screw part; the guide part is connected with the other end of the second driving part, and the outer diameter value of the guide part is gradually reduced towards one end far away from the second driving part along the central axis direction; and the central axes of the guide part, the second driving part, the sc