Valve core fixing tool for welding heat supply pipe network welding ball valve

• Main Authors: LI FUYAN, SUN YANGWEI, WANG JINLEI
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2020
• 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 relates to a valve core fixing tool for welding a heat supply pipe network welding ball valve. Wherein the two fixing ring sleeves are oppositely arranged and located at the two endsof a valve element flow channel respectively. Wherein an inner cavity of the fixed sleeve is communicated with a flow channel of the valve core, each fixed ring sleeve is of a stepped shaft structure, a small-diameter section of each stepped shaft structure is inserted into the flow channel of the valve core and is matched with the inner wall of the flow channel of the valve core, a large-diameter section of each stepped shaft structure is matched with the inner wall of the valve body, and a limiting part is arranged on the stepped surface of each stepped shaft structure. When the valve bodyis welded, the spherical valve core needs to be arranged in the inner cavity of the valve body; the spherical valve element is limited through the two fixing ring sleeves, each fixing ring sleeve is limited and fixed through a