Opening/closing apparatus of petals of artificial flowers

摘要

An opening/closing apparatus of petals of artificial flowers adapted to unfold and fold petal members like a natural flower. The apparatus has an expansion member internally disposed underneath a body to expand during absorption of liquid or to shrink during evaporation of the liquid; a medium member disposed above the expansion member to upwardly move according to expanding force of the expansion member; a restoring member coupled to an upper side of the medium member to downwardly move the medium member according to resilience; and a plurality of petal members respectively hinged to periphery of the body, each at a predetermined height to unfold outwardly when the medium member descends or to fold inwardly when the medium member ascends. Attentively, the apparatus has a flexible member coupled to an upper side of the body to flexibly move vertically according to expansion or shrinkage of the expansion member; and a plurality of petal members respectively attached to center and peripheral sides of the flexible member, each distanced at a predetermined space relative to the upper side of the flexible member to outwardly unfold when the upper side of the flexible member is convexly and upwardly elongated or to inwardly fold when the upper side of the flexible member is concavely and downwardly shrunk.