Nailing device and nailing gun comprising same

The utility model relates to a nailing device and a nailing gun comprising the nailing device, the nailing device comprises a nail box, a nail box arranged in the nail box, a nail pushing block, tail buckle switches respectively arranged at two ends of the nail box, a nail stopping block and a nail arranging opening, the nail stopping block is fixedly connected with the nail arranging opening, and the nail pushing block is slidably connected with the nail box; the nail box comprises a guide rail assembly and a nail distributing piece which are subjected to heat treatment, and the nail distributing piece is arranged at the end of the guide rail assembly and is close to the nail arranging opening. Through the unique design of the nail arranging opening and the nail pushing device, stable pushing and accurate nail shooting of T nails, straight nails, and code nails and U nails of different models can be achieved; due to the fact that the guide rail assembly is subjected to overheating treatment, the hardness and