Converter steelmaking nozzle connecting mechanism

The utility model relates to a converter steelmaking nozzle connecting mechanism which can be used for installing a sliding nozzle structure or a molten steel nozzle structure and is provided with a foundation plate, a connecting plate and connecting bolts and nuts. The foundation plate is connected with the converter through the connecting holes; the foundation plate and the connecting plate are connected into a whole through the connecting bolts and nuts; a mounting assembly, a positioning assembly and a seat plate are arranged on the connecting plate; the seat plate is used for mounting a sliding nozzle structure or a molten steel nozzle structure; a long positioning column and a short positioning column of the positioning assembly respectively provide positioning guide during falling and accurate positioning when the seat plate falls to the bottom for the seat plate; the mounting assembly comprises a mounting seat, an eyelet bolt, a positioning nut and a mounting pin shaft; the swing bolt is matched with