Pipeline welding plug

The invention belongs to the pipeline maintaining and repairing tools and particularly relates to a pipeline welding plug. The pipeline welding plug comprises a screw rod, a base, a coupling and a plug body. The screw penetrates the base. The plug bode is connected with the lower end of the screw ro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FENG LIYONG, YAN MINLI, YAN MINLIANG
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention belongs to the pipeline maintaining and repairing tools and particularly relates to a pipeline welding plug. The pipeline welding plug comprises a screw rod, a base, a coupling and a plug body. The screw penetrates the base. The plug bode is connected with the lower end of the screw rod and internally provided with a deparaffin ball. Two ends of the base are provided with tie bars. The lower ends of the tie bars penetrate two ends, fixed by adjusting nuts, of the coupling. The inside of the coupling and an opening of the plug body are opposite. Due to simple fit of the coupling, the plug body and the deparaffin ball, a leak repairing point is welded without emptying of the pipeline, and resource waste and environmental protection are reduced; the pipeline welding plug is made of waste, easy to produce, low in cost, convenient to use in field, high in working efficiency and wide in promotion and application range.