Steel buckle used for molten aluminum ladle

The invention relates to the technical field of steel buckles, in particular to a steel buckle used for a molten aluminum ladle. The steel buckle is provided with a sprue gate, a fixed rod is vertically arranged on one side of the sprue gate, a fixed sleeve is arranged at the end of the fixed rod, a connecting rod is hinged into the fixed sleeve, a cover plate is fixedly arranged at the end of theconnecting rod, a locking rod is fixedly arranged at the upper end of the cover plate, and a locking groove is formed after the end of the locking rod extends to the rear side of the cover plate; a fixed block is arranged on the other side of the sprue gate, a mounting lug is arranged on one side of the fixed block, a positioning clamp is hinged onto the mounting lug, and the middle part of the positioning clamp is hinged to a U-shaped locking ring. The steel buckle used for the molten aluminum ladle is high in sealing performance, safe and reliable in operation, the appearance of a molten aluminum leakage phenomenon