Graphite support ring with multilayer structure

The utility model discloses a graphite support ring with a multilayer structure, which comprises two semi-rings, the two semi-rings are both made of graphite materials, the graphite materials have good wear resistance, the two semi-rings can be spliced into a support ring, inner rings are arranged on the inner walls of the two semi-rings, the two inner rings can be spliced into a circular ring, and the two semi-rings are made of graphite materials. The length of the circular ring is larger than that of the supporting ring, the outer walls of the left sides and the right sides of the two inner rings are fixedly connected with installation blocks, two positioning grooves are symmetrically formed in the upper end of the lower half ring, and two first magnetic blocks matched with the positioning grooves are symmetrically installed at the lower end of the upper half ring. And a second magnetic block matched with the first magnetic block is arranged at the inner bottom of the positioning groove. The supporting ring