A safety nipple clip includes a substrate, a movable clip pivotally connected to a pair of side walls of the substrate, and a pulling piece pivotally connected to the opposite side wall by a shaft pin； when the pulling piece is pulled, the a pair of angular flanges of the triggering piece, at least one toggle cam and at least one yoke during rotation to move the diagonal flange on a surface of an arm of the movable clip to disengage or Abutting against a pair of end slots, the at least one yoke is detached or enters a slot of the movable clip, and the at least one swaying tab slaps an abutting slope of the movable clip to cause the movable clip A downwardly moving or upwardly tilting movement is formed with respect to the substrate to form a snap-fit type or a loose clip type that creates a gap.一種安全奶嘴夾，其包括一基板，樞接於該基板一對側壁內的一活動夾片，以及以一軸銷樞接於對側壁的一扳動片；當扳動該扳動片時，使該扳動片的一對角狀凸緣、至少一撥動凸榫和至少一擋榫於轉動過程中，使該對角狀凸緣在該活動夾片的一支臂的表面移動以脫離或抵接於一對端槽，該至少一擋榫脫離或進入該活動夾片的一穿槽，以及該至少一撥動凸榫撥動該活動夾片的一抵接斜面，使該活動夾片相對於該基板形成向下移動或向上翹起的運動，以形成咬合的夾合型態或產生間隙的鬆夾型態。
