Make gas-charging connection that glass steel pressure vessel used

The utility model provides a make gas-charging connection that glass steel pressure vessel used. This glass steel pressure vessel includes ladle body and chain wheel, and the chain wheel setting is on the ladle body, and the chain wheel inboard is equipped with the screw this gas-charging connection is columniform hollow structure, its periphery be equipped with with chain wheel complex screw thread, the open-top of gas-charging connection, its bottom has a bottom surface, is equipped with the valve inside that runs through the bottom surface on the gas-charging connection bottom surface, top along the radial whole bulge loop that outwards extends of gas-charging connection, the lower edge of bulge loop and the cooperation of glass steel pressure vessel's bung hole, the top lateral wall of gas-charging connection is equipped with the breach. The utility model provides a pair of make gas-charging connection that glass steel pressure vessel used, simple structure, excellent in use effect is inflated to this gas-charging connection of accessible to pressure vessel's ladle body