Pressure transmitter

The utility model discloses a pressure transmitter. The pressure transmitter comprises a shell, and a sealing piece, a core body, a stop piece, a protective cover and a deformable pressing ring whichare sequentially assembled in the shell, wherein one end of the main ring body abuts against the core body, the boss extends from the inner ring of the main ring body to the center line of the main ring body, the side, away from the core body, of the boss and the inner ring of the main ring body form a clamping step, the protective cover is clamped to the clamping step, and the deformable pressingring is arranged at the other end of the main ring body and connected to the ends of the main ring body and the protective cover. According to the pressure transmitter disclosed by the utility model,the boss is formed in the main ring body; according to the pressure transmitter, the boss is arranged on the pressure transmitter body, the clamping step is formed at the boss, the protective cover can be clamped on the clampi