Inner opening lining of inner coating pipeline

The utility model discloses an inner opening lining of an inner coating pipeline; the inner opening lining is used in the fields of petrol and chemical pipelines; the inner opening lining comprises a cylindrical main body and a coating coated on the surface of the cylindrical main body; the inner opening lining is characterized in that the inner opening lining is additionally provided with a cushion plate, the cushion plate is provided with a locating plate, and a heat isolating strip is installed between the cushion plate and the cylindrical main body of the inner opening lining. The inner opening lining ensures the continuity of the inner coating of the inner coating pipeline and has convenient on-site installation and construction and good popularization and use value.