A case for liquid state cosmetics, the case comprising:
- a case body provided with a content storage part in which the liquid content is stored;
- a shoulder unit coupled to close an upper portion of the case body and provided with an inflow part having a content inflow hole in a center thereof;
- a piston unit disposed in the case body to move according to discharge of the content;
- a pumping unit inserted into the inflow part and connected to the content inflow hole to discharge the content through pumping action due to elasticity, wherein the pumping unit further comprises:
- a pumping member which is made of an elastic material so that the content is discharged through the pumping action including compression and expansion due to the elasticity and through which a content moving passage connected to the content inflow hole passes through an inside thereof;
- a valve member provided in a lower portion of the pumping member to open a lower side of the content moving passage communicating with the content inflow hole;
- and
- a nozzle member inserted into an upper portion of the pumping member to open and close an upper side of the content moving passage while coming into contact and non-contact with the pumping member when the pumping member is elastically deformed, thereby discharging the content;
- and
- a pumping cap disposed below a button unit and coupled to the upper portion of the pumping member and having a discharge hole connected to a nozzle hole of the nozzle member at a center thereof;
- wherein the pumping member further comprises:
- an undercut part stepped so that a lower inner diameter thereof is more expanded than an upper inner diameter thereof on an inner circumferential surface of a nozzle insertion part,
- a valve mounting part inserted into and coupled to the content inflow hole of the shoulder unit and provided with the valve member therein;
- an elastic pumping part extending upward from the valve mounting part and elastically deformed when pushing and pushing-releasing operation of the button unit are performed to perform pumping action for pumping the content within the pumping member upward;
- the nozzle insertion part extends upward from the elastic pumping part and is coupled to a lower portion of the pumping cap and in which the nozzle member is inserted therein;
- a bellows part having a bellow shape at a center in a longitudinal direction of the nozzle insertion part and compressed and expanded in a longitudinal direction of the nozzle insertion part when the pushing and pushing-releasing operation of the button unit are performed to perform elastic action;
- wherein, in a state in which the nozzle member is inserted into the nozzle insertion part, a flange part protruding outward from a lower end of the nozzle member is closely attached to and supported by the undercut part,
- when the button unit is pushed downward, the bellows part is compressed downward by the pumping cap to allow the nozzle member to descend so that the close attachment of the flange part to the undercut part is released to open the undercut part and thereby to discharge the content, and
- when the button unit returns upward, the bellows part is expanded upward to allow the nozzle member to ascend so that the flange part is closely attached to the undercut part to seal the undercut part and thereby to block the discharge of the content;
- and
- the button unit elevatably coupled to an upper portion of the shoulder unit and connected to the pumping unit and an outlet hole, through which the content is discharged, at a center thereof, the button unit operating the pumping unit to discharge the content to the outlet hole by the pumping action of the pumping unit.