Water cooling connection disc device used on continuous casting billet withdrawal and straightening unit

The utility model relates to a water cooling connection disc device used on a continuous casting billet withdrawal and straightening unit. The water cooling connection disc device comprises a withdrawal and straightening unit base and a fundamental base. The withdrawal and straightening unit base is arranged on the fundamental base and comprises an upper connection board, a lower connection board, adapters and tapered joints, wherein the upper connection board is fixed on the withdrawal and straightening unit base, a plurality of downward insertion seats are arranged on the other end of the upper connection board, a plurality of pipe joint connection holes communicating with the interior of the insertion seats are arranged on the side surfaces of the insertion seats, the lower connection board is fixed on the fundamental base, a plurality of tapered joints corresponding to the insertion seats on the upper connection board are arranged on the lower connection board, an adapter is arranged under each tapered jo