Improved structure of fully-opened cover pull ring

The utility model discloses an improved structure of a fully-opened cover pull ring. The improved structure comprises a cover body, a pull ring and a rivet, the outer side of the pull ring is riveted on the hinged side of the cover body through a rivet; a U-shaped groove and a finger hole are formed in the pull ring, the U-shaped groove is adjacent to the finger hole, the U-shaped groove is located on the inner side of the finger hole, the U-shaped groove surrounds the periphery of the rivet, an opening of the U-shaped groove faces outwards, and the opening of the U-shaped groove is symmetrically formed in the two sides of the rivet. Due to the fact that the opening end of the U-shaped groove outwards exceeds the outer wall of the rivet and is located on the outer side of the rivet, the opening end of the U-shaped groove is a supporting point of a force arm of the full-open cover pull ring, the position of the supporting point is optimized, the distance of a power arm is lengthened, the effect of reducing ope