Large-size crystal pulling cooling transition device with local protection structure

The utility model discloses a large-size crystal pulling cooling transition device with a local protection structure, which comprises a crucible base, a blocking panel is arranged on one side of the crucible base, a rotating force arm is arranged right above the blocking panel, the blocking panel and the rotating force arm form a shielding structure, a stretching part on one side of the crucible base is subjected to protection treatment, and the rotating force arm is arranged right above the blocking panel. An inner heating tank is arranged on one side of the crucible base, and an outer heating tank is arranged at the top of the inner heating tank; a lifting panel a is connected to the position over the rotating force arm through a bearing, an electric telescopic rod is connected to the top of the lifting panel a in a penetrating mode, and the output end of the electric telescopic rod is connected with the lifting panel a; and a, lifting the panel. The utility model discloses a large-size crystal pulling cool