Fireproof gypsum board caulking sealing structure

The utility model discloses a fire-resistant gypsum board caulking sealing structure, and relates to the technical field of board sealing structures. Comprising a device body, a clamping device is arranged at the bottom of the device body, a bottom plate is arranged at the bottom of the clamping device, a first limiting groove is formed in the top of the bottom plate, a limiting plate is slidably mounted in the first limiting groove, a lifting device is slidably mounted at the top of the limiting plate, and a third sliding rail is arranged at the top of the limiting plate; according to the fireproof gypsum board caulking sealing structure, boards with different sizes and lengths can be stably sealed and fixed, meanwhile, the height of the limiting plate can be adjusted, the fireproof gypsum board caulking sealing structure is convenient to use, and the fireproof gypsum board caulking sealing structure can be used for sealing and fixing the boards with different sizes and lengths. And when a thin plate is enco