Inflation protection device for welding pipe fitting

• Main Authors: WANG LINSEN, LI ZHANLEI, MO QIPENG, ZENG HUIQIANG, CUI LINYU
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The utility model discloses an inflation protection device for welding pipe fittings, which comprises a left blocking plate assembly and a right blocking plate assembly, the left blocking plate assembly is used for being arranged in a left pipe fitting and is in close fit with the inner wall of the left pipe fitting, and the right blocking plate assembly is used for being arranged in a right pipe fitting and is in close fit with the inner wall of the right pipe fitting. The left blocking plate assembly and the right blocking plate assembly are connected through an inflation pipe, a plurality of air holes are evenly distributed in the inflation pipe, a first connector is arranged on the right blocking plate assembly, the first connector is communicated with the inflation pipe, and the first connector is used for being connected with an inert gas source. The welding protection device is simple in structure, good in sealing performance, uniform in air outlet, excellent in welding protection performance and conve