Ring body front sleeve sealing structure

The utility model provides a ring body front sleeve sealing structure which comprises a hollow composite sealing gasket used for being matched with the annular design of a ring body front sleeve. The composite sealing gasket comprises an inner gasket and an outer gasket, the outer gasket is arranged outside the inner gasket in a sleeving mode, the inner gasket is a hard gasket and used for improving the supporting performance to the outer gasket, grooves are formed in the front side and the rear side of the outer gasket, the number of the grooves is larger than six, the grooves are distributed in the outer gasket at equal intervals, and after the grooves are pressed, air in the grooves can be compressed and adsorbed to the ring body front sleeve. According to the ring body front sleeve sealing structure and the composite sealing gasket, the supporting effect of the composite sealing gasket is improved through the rigid design of the inner gasket, the situation that in the vertical state assembling process, on