Metal expansion bolt

The utility model provides a metal expansion bolt, which relates to the technical field of expansion bolts and comprises a countersunk bolt, an expansion tube is sleeved on the outer surface of the countersunk bolt, and a shell is sleeved on the outer surface of the expansion tube. The countersunk h...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	LIU SONGYUN
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 provides a metal expansion bolt, which relates to the technical field of expansion bolts and comprises a countersunk bolt, an expansion tube is sleeved on the outer surface of the countersunk bolt, and a shell is sleeved on the outer surface of the expansion tube. The countersunk head of the countersunk bolt is pushed to move towards the interior of the shell, the top plate moves in the shell, the sliding rod moves out of the interior of the shell, and the first spring in the shell contracts in shape under the influence of external acting force, so that the expansion bolt can move by means of the elasticity of the first spring when moving out of the interior of the shell; the workload of related workers is relieved, a push plate is pushed to move, a top plate drives a countersunk bolt to move by means of acting force and thrust generated when the shape of a first spring is restored, and an expansion bolt moves towards the interior of a drill hole, so that the expansion bolt has the character