Expansion bolt for building installation

The invention provides an expansion bolt for building installation. The expansion bolt for building installation comprises a screw rod, an outer sleeve, an outer conical nut, an inner sleeve, an inner conical nut, a check ring and a first nut, wherein the screw rod is rotated to enable the outer con...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YANG WEIXIN, WANG GONGLI
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 provides an expansion bolt for building installation. The expansion bolt for building installation comprises a screw rod, an outer sleeve, an outer conical nut, an inner sleeve, an inner conical nut, a check ring and a first nut, wherein the screw rod is rotated to enable the outer conical nut to move towards the interior of an anchoring hole and enable the inner conical nut to move towards the exterior of the anchoring hole at the same time; the outer conical nut moves towards the interior of the anchoring hole, so that the outer conical nut is extruded into the outer expansion pipe section, and finally, the anchoring hole, the outer expansion pipe section and the outer conical nut are extruded and fixed together; the inner conical nut moves towards the outside of the anchoring hole, so that the inner conical nut is extruded into the inner expansion pipe section, and finally, the anchoring hole, the inner expansion pipe section and the inner conical nut are extruded and fixed together; expansio