Tundish stopper rod casting combined-type water gap

The utility model discloses a tundish stopper rod casting combined-type water gap, which comprises a tundish water gap (1), a transitional water gap (2) and a down nozzle (3), wherein the transitional water gap (2) is positioned below the tundish water gap (1) and above the down nozzle (3), and the tundish water gap, the transitional water gap and the down nozzle are movably connected; a slide mechanism formed by connecting an upper slide plate (7) with a lower slide plate (8) is fixed at the tundish bottom of the tundish water gap (1); and bulges on two sides of the down nozzle (3) are respectively positioned in two slideways formed on the inner sides of the upper slide plate (7) and the lower slide plate (8). A gas spring (6) is arranged between the upper slide plate (7) and the lower slide plate (8). The tundish stopper rod casting combined-type water gap has the advantage of long service life, and can ensure safe and reliable stopper rod casting.