Ceramic ring structure for graphite boat

The utility model discloses a ceramic ring structure for a graphite boat, which comprises a tube body with a cylindrical cavity penetrating along the axial direction, at least one circle of first groove structure is arranged on the periphery of the tube wall of the tube body, and a hollow structure is further arranged in the tube wall of the tube body. The hollowed-out structure comprises a second groove structure with a curved surface bottom wall and third groove structures symmetrically arranged on the two sides of the second groove structure, and the first groove structure, the second groove structure and the third groove structures communicate with one another. The graphite boat has the advantages that the electric insulation effect can be effectively improved, the service life of the ceramic ring is prolonged, and the conduction risk of the graphite boat is reduced. 本实用新型公开了一种石墨舟用陶瓷环结构，包括具有一沿轴向方向贯通的圆柱形腔体的管本体，管本体的管壁外周至少设有一圈第一凹槽结构，管本体的管壁内还设有镂空结构，镂空结构包括带曲面底壁的第二凹槽结构以及对称布置在第二凹槽结构两侧的第三凹槽结构，第一凹槽结构、第二凹槽结构、第三凹槽结构