Chemical corrosion resistant sealing ring

The utility model belongs to the field of sealing rings, and particularly relates to a chemical corrosion resistant sealing ring which comprises a sealing ring body, a clamping mechanism is arranged on the inner wall of the sealing ring body, the clamping mechanism comprises a plurality of sliding blocks, the sliding blocks are connected to the inner wall of the sealing ring body in a sliding mode, and the sliding blocks are arranged on the inner wall of the sealing ring body. A sliding groove is formed in the inner wall of the sealing ring body, a plurality of first springs are fixedly connected to the inner wall of the sliding groove, and one end of each first spring is fixedly connected to one side of the corresponding sliding block. Through the structural design of the clamping mechanism, when the sealing gasket is arranged on the surface of an object in a sleeving mode, a sliding block can be pushed to move forwards through a first spring, then a polytetrafluoroethylene coating is pushed to be tightly co