LABOR-SAVING STAY ON TAB (SOT) PULL-RING COVER OPENING STRUCTURE

The utility model relates to a labor-saving Stay on Tab (SOT) pull-ring cover opening structure. The labor-saving SOT pull-ring cover opening structure includes a can cover, a pull ring connected with the can cover, provided with a U-shaped groove and separated by the U-shaped groove into a connecting portion, a pressing portion and a pull-up portion, and a tongue tab; the connecting portion of the pull ring is connected with the tongue tab via a rivet; a rear end of the pull-up portion, when being stressed to move upward relative to the can cover, is capable of enabling the pressing portion to press the tongue tab with a first supporting point and a second supporting point as fulcrums and further enabling the tongue tab to move relative to the can cover; the first supporting point and the second supporting point are symmetrically arranged left and right along a longitudinal axis and are located in front of the connecting portion along a direction of the longitudinal axis; and distances from a center of the rivet to the first supporting point and the second supporting point along the longitudinal axis are not smaller than 2.30mm-2.50mm. According to the labor-saving SOT pull-ring cover opening structure, by increasing the distances from the center of the rivet to the supporting points, distances of moment arms when the pull ring is rotated are increased and it is more labor-saving when the pull ring is pulled upward.