Protocol conversion gateway

The utility model discloses a protocol conversion gateway, which relates to the technical field of gateways and comprises a casing, a dustproof structure and a protective structure are arranged on the casing, the dustproof structure comprises two dustproof opening and closing parts, two shielding parts and a plurality of protective sleeve parts, a key board is arranged at the top of the casing, a plurality of concave jacks and convex jacks are arranged on two sides of the casing, and the protective sleeve parts are arranged on the casing. The dustproof opening and closing component comprises an air cylinder fixedly connected with the inner top of the machine shell, the output end of the air cylinder is fixedly connected with a connecting plate, a plurality of first sliding grooves are formed in the bottom of the connecting plate, and a plurality of shielding assemblies are arranged at the bottom of the connecting plate. According to the utility model, dust prevention and key protection can be carried out, the