Device for filling pipe splicing pipe with shielding gas

The invention relates to a device for filling a pipe splicing pipe with shielding gas. The device for filling the pipe splicing pipe comprises a gas outlet connecting pipe, the gas outlet connecting pipe is communicated with a first gas bag, a pressure check valve, a second gas bag and the first end...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XIE AOQI, XIE SHENGFEI, XIE WEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MACHINE TOOLS MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PIPES SOLDERING OR UNSOLDERING SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The invention relates to a device for filling a pipe splicing pipe with shielding gas. The device for filling the pipe splicing pipe comprises a gas outlet connecting pipe, the gas outlet connecting pipe is communicated with a first gas bag, a pressure check valve, a second gas bag and the first end of a three-way ball valve, the pressure check valve is located between the first gas bag and the second gas bag, and the three-way ball valve is located on the outer side of a workpiece. The second end of the three-way ball valve is communicated with a gas inlet pipe to input the shielding gas. 1, The device for filling the pipe splicing pipe is compact in structure, small in occupied space and convenient to manufacture and maintain; 2, time and labor are saved during dismounting, mounting and moving, gas loss is low, and energy conservation and environmental protection are achieved; 3, by adopting the particularity of the adjustable size of a double-gas-bag structure due to inflation expansion and deflation contr