Pipe joint riveting structure of gas meter

The utility model discloses a pipe joint riveting structure of a gas meter, which relates to the technical field of gas meters and comprises a shell and two pipe joints, a gas inlet boss and a gas outlet boss are arranged at the top of the shell, extrusion cavities are arranged at the bottoms of the two pipe joints, the outer surfaces of the gas inlet boss and the gas outlet boss are riveted with the inner walls of the extrusion cavities, and the gas inlet boss and the gas outlet boss are riveted with the inner walls of the extrusion cavities. An air inlet flange structure is arranged on the inner wall of the air inlet boss, and an air outlet flange structure is arranged on the inner wall of the air outlet boss. The conical extrusion cavity is formed in the bottom of the pipe joint and can be completely matched with the annular protruding structures of the air inlet boss and the air outlet boss, so that deviation can be prevented during riveting, and when riveting is completed, the top of the air inlet boss a