Lock

The utility model discloses a lock, is its model DK 110, its technical scheme main points are lock, including the casing, being equipped with the gliding lock tongue of elasticity in the casing, articulated on the casing have lock to cover, is equipped with the linkage groove in the lock tongue, and lock covers to be equipped with and extends to the flexible promotion piece of linkage inslot drive lock tongue, operation lock lid turns, promote the piece this moment and driven, and it is flexible to have moved lock tonguing line through the linkage troughed belt, promotes the piece and concentrates on linkage inslot wall to the effort of lock tongue, and it is the same to the flexible direction of the effort direction of the inner wall in linkage groove and lock tongue to promote the piece to the flexible direction decomposition function of lock tongue power, it is great that the effort offered the effort of flexible direction completely this moment, and the lock lid is opened more laborsavingly so. 本实用新型公开了种锁