Sealing ring for cylinder head cover of automobile engine

The invention discloses an automobile engine cylinder head cover sealing ring which comprises a cylinder head, a cylinder head cover and a buffering mechanism, a sealing piece is arranged between the cylinder head and the cylinder head cover, a plurality of vertical rods are fixedly connected to the lower end of the sealing piece at equal intervals, and a plurality of limiting cavities are formed in the inner wall of the cylinder head at equal intervals. According to the sealing device, the vertical rod can be limited through the vertical rod, the plastic ring and the limiting hole, so that the sealing piece is limited, the rubber ring abuts against the interior of the clamping groove, the sealing piece can be further limited, and the sealing piece is prevented from shifting and falling off; the vertical rod, the push rod and the first inclined block can drive the second inclined block to move back to back, the second inclined block can drive the two bolts to move back to back and extend out of the cavity, an