Anti-deformation O-shaped sealing ring

The utility model relates to the technical field of sealing rings, and discloses an anti-deformation O-shaped sealing ring which comprises a supporting ring, the surface of the supporting ring is meshed with a threaded cylinder, a sealing cover is fixedly installed on the side, away from the center of the supporting ring, of the threaded cylinder, and anti-skid particles are fixedly installed on the side, away from the supporting ring, of the sealing cover. According to the sealing cover, the threaded cylinder is meshed with the surface of the supporting ring, so that the sealing cover can be unscrewed from the surface of the supporting ring through the threaded cylinder after the sealing cover is abraded and cannot be normally used in the long-time using process, and then the single sealing cover is replaced, and therefore the effect that only the single sealing cover and the threaded cylinder are replaced is achieved; and the whole body does not need to be replaced, so that the waste of the whole body is av