Planar pressure-proof rubber sealing structure

The utility model provides a planar pressure-proof rubber sealing structure which comprises a cover plate which is 130 mm long and 75 mm wide, a middle protrusion of the cover plate is semicircular, the periphery of the cover plate is in a planar shape, four assembling holes are formed in the frame, an upper flanging is arranged on the planar frame from the periphery to the middle protrusion and 2-4 mm high, a sealing gasket is arranged under the frame corresponding to the cover plate, the primary section of the sealing gasket is 1mm thick, the upper contact face and the lower contact face of the sealing gasket are provided with two sealing ribs which are annularly sealed, the radius R of each sealing rib is 0.24 mm-0.6 mm, the four assembling holes protrude out of the planar frame by 1 mm, locating holes are formed in the cover plate frame and located in the side edges of the assembling holes, and mushroom-shaped pins are arranged on the corresponding sealing gasket. The planar pressure-proof rubber sealing