Leakage proof seal structure of gas meter

The utility model relates to a gas meter leakproof seal structure, including a copper coat, sealing ring and cap. The outer edge of the coat is radial to the limited flange. The outer sleeve is coaxially loaded with a seal ring made of a fine rubber, and the lower end of the jacket is coaxial with a pressure cap. The outer wall of the jacket is provided with an external thread for the installation of the body, and a staircase through hole is made in the outer coax of the outer sleeve, and the seal ring is mounted on the convex shoulder position of the staircase through hole. The utility model adopts a copper coat and the seal ring of butadiene rubber to form a sealing structure to ensure the sealing, prevent the deformation, improve the service life and improve the safety.