Compared with the traditional fixed wing centralizer, the product has high safety and reliability, reduces friction and torque, has better protection for the lifting system and torque transmission system, avoids the mud bag centralizer, eliminates the phenomenon of piston pulling in the process of tripping, and improves the tripping speed.In rotary drilling, because of the advantages of its internal structure, it also has the function of lateral damping, which has a protective effect on the next drill string.