Rubber sealing ring with inner ring sealing structure

The utility model discloses a rubber sealing ring with an inner ring sealing structure, which comprises a sealing ring main body, an upper sealing ring is connected and arranged at the upper end of one side of the sealing ring main body, a lower sealing ring is connected and arranged at the lower end of one side of the sealing ring main body and below the upper sealing ring, and a tough metal framework is connected and arranged in the sealing ring main body. Elastic air layers are arranged in the sealing ring and located above and below the tough metal framework, a first sealing lip and a second sealing lip are connected to the side, away from the upper sealing ring, of the sealing ring body, and a dust shielding ring is connected to the portion, below the first sealing lip, of the sealing ring body. An extrusion ring is connected to one side of the sealing ring body and located between the first sealing lip and the second sealing lip, an oil storage groove is connected into the extrusion ring, an oil passing