Patent Publication Number: US-2018035781-A1

Title: Liquid cosmetic case

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to and the benefit of Korean Patent Application No. 10-2016-0098745, filed on Aug. 3, 2016, the disclosure of which is incorporated herein by reference in its entirety. 
     FIELD OF THE INVENTION 
     The present invention relates to a cosmetic case, and more particularly, to a liquid cosmetic case configured to discharge a predetermined amount of liquid contents through opening/closing of a valve nozzle according to rotation thereof. 
     BACKGROUND OF THE INVENTION 
     In general, liquid cosmetics for facial makeup are contained in a case and used such that liquid contents in the case are discharged during makeup. 
     In related arts, a button-type or a rotary-type method is mainly used as a method for discharging liquid contents in a liquid cosmetic case. 
     In case of the button-type liquid cosmetic case, a button-type applicator is provided in an upper portion or a side portion of a case body, and liquid contents in the case are discharged through repeated operations of pushing a button. However, when the button is installed on the upper or side portion of the case body, there are limitations in that manufacturing costs are increased due to a complicated structure, and a large number of constituent elements, and a malfunction is caused. 
     In addition, when the button is applied in a lower portion of the case body as another example to the button-type liquid cosmetic case, there are limitations of inconvenience in use because the total length of the case body is increased, and contents are discharged due to a malfunction inside a bag in carrying. 
     The rotary-type cosmetic case has a structure in which the case is moved by being rotated like a screw in a body and thereby liquid contents in the case are discharged. However, since the rotary type case can be applied to only contents having viscosity, and the discharging portion of the case is always opened, the contents may leak regardless of user&#39;s intent, thereby having a problem in sealability. 
     PRIOR ART DOCUMENTS 
     Patent Documents 
     (Patent Document 1) Korean Patent No. 10-0702621 
     SUMMARY OF THE INVENTION 
     Accordingly, the present invention provides a liquid cosmetic case which is configured to discharge liquid contents through opening/closing of a valve nozzle according to rotation thereof, thereby providing convenience in use and has improved sealability such that the contents are not leaked in non-use thereof. 
     In order to solve the technical problems, a liquid cosmetic case according to an exemplary embodiment of the present invention includes: a body configured such that liquid contents are discharged through a discharging hole; a container which is inserted into the body through a lower end opening portion of the body in a slidable manner and in which the liquid contents are filled; a container cap coupled to an upper end of the container; a valve unit connected to a discharging side of the body and the container cap to open/close the discharging hole and provided with an opening/closing member slided in association with the container and the container cap; and a rotary elevator part coupled to the lower end of the body, connected to a lower end of the container and thereby vertically moving the container when being rotated, wherein when the rotary elevator part is rotated to move the container upwardly, the opening/closing member may open a moving passage the contents and the contents may thereby be discharged, and when the container is downwardly moved, the opening/closing member may close the moving passage of the contents and the contents may thereby be prevented from being discharged. 
     The body may have a rotary coupling groove formed in an annular shape in a lower end of an inner side surface of the body, and the rotary elevator part may have a rotary coupling protrusion inserted and coupled into the rotary coupling groove and formed in an annular shape, wherein the rotary elevator part may be coupled to the body in a rotatable manner. 
     The rotary elevator part may be configured to have a circular tube shape having an opened upper portion, and a lower portion of the container may be inserted and coupled into the rotary elevator part through the opened portion of the rotary elevator part. 
     The container may include a cam part in which a plurality of inclining teeth are formed on a lower end of an outer side surface in a circumferential direction thereof at regular intervals, and the rotary elevator part may include a plurality of cam protrusions formed on a lower end of an inner circumferential surface thereof so as to correspond to the inclining teeth, wherein when the rotary elevator part is rotated, the container may be moved up and down as the cam protrusions move the cam part in an up-and-down direction through inclining contact with the inclining teeth. 
     The inclining teeth may be formed in a triangular shape having a downwardly inclining surface and a vertical surface with respect to a rotating direction of the rotary elevator part, wherein when the rotary elevator part is rotated in one direction, the container may be slided toward the discharging hole as the cam protrusions contact the downwardly inclining surface to thereby upwardly move the cam part, and the container may be slided toward an opposite side to the discharging hole as the cam protrusions pass the inclining surface and is positioned in parallel with the vertical surface to thereby downwardly move the cam part. 
     The inclining teeth may be formed in a triangular shape having a downwardly inclining surface and an upwardly inclining surface with respect to the rotating direction of the rotary elevator part, wherein when the rotary elevator part is rotated in both directions, the container may be slided toward the discharging hole as the cam protrusions contact the downwardly inclining surface to thereby upwardly move the cam part, and the container may be slided toward an opposite side to the discharging hole as the cam protrusions pass the downwardly inclining surface and contact the upwardly inclining surface to thereby downwardly move the cam part. 
     The valve unit may include: a valve nozzle installed to pass through the container cap in a vertically movable manner, having a nozzle hole formed therein and connected to the discharging hole, and having an introducing hole formed in a side portion thereof and connected to the nozzle hole so as to allow the contents to be introduced in the nozzle hole; a sliding member inserted and coupled into the outer side of the valve nozzle and slided toward the discharging hole by being pushed by the container cap when the container and the container cap are slided toward the discharging hole; an elastic member installed to elastically support the sliding member against the discharging hole side and returning the sliding member to an original state when force pushing the container and the container cap is released; and an opening/closing member coupled to an outer side of the valve nozzle in a movable manner, opening the introducing hole by being pushed toward the discharging hole by a pressure of the contents introduced between the container cap and the valve nozzle when the sliding member is slided toward the discharging hole, and closing the introducing hole while being returned to the original state by being pushed by the sliding member when the sliding member is returned to the original state. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view illustrating a liquid cosmetic case according to an embodiment of the present invention. 
         FIG. 2  is an exploded perspective view of the liquid cosmetic case illustrated in  FIG. 1 . 
         FIG. 3  is a longitudinal cross-sectional view of the liquid cosmetic case illustrated in  FIG. 1 . 
         FIG. 4  is a perspective view of the body illustrated in  FIG. 2 . 
         FIG. 5  is a longitudinal cross-sectional view of the body illustrated in  FIG. 4 . 
         FIG. 6  is a perspective view of the container illustrated in  FIG. 2 . 
         FIG. 7  is a longitudinal cross-sectional view of the container illustrated in  FIG. 6 . 
         FIG. 8  is a side view illustrating portion A of  FIG. 6 . 
         FIG. 9  is a side view illustrating another example of portion A of  FIG. 6 . 
         FIG. 10  is a perspective view of the rotary elevator part illustrated in  FIG. 2 . 
         FIG. 11  is a longitudinal cross-sectional view of the rotary elevator part illustrated in  FIG. 10 . 
         FIG. 12  is a plan view of the rotary elevator part illustrated in  FIG. 10 . 
         FIG. 13  is a perspective view of the container cap illustrated in  FIG. 2 . 
         FIG. 14  is a longitudinal cross-sectional view of the container cap illustrated in  FIG. 13 . 
         FIG. 15  is a longitudinal cross-sectional view of the pressing holder illustrated in  FIG. 2 . 
         FIG. 16  is a perspective view of the valve nozzle illustrated in  FIG. 2 . 
         FIG. 17  is a longitudinal cross-sectional view of the valve nozzle illustrated in  FIG. 16 . 
         FIG. 18  is a longitudinal cross-sectional view of the sliding member illustrated in  FIG. 2 . 
         FIG. 19  is a side view of the opening/closing member illustrated in  FIG. 2 . 
         FIG. 20  is a longitudinal cross-sectional view of the opening/closing member illustrated in  FIG. 19 . 
         FIG. 21  is a longitudinal cross-sectional view of the connector illustrated in  FIG. 2 . 
         FIG. 22  is a cross-sectional view illustrating a state in which contents in a liquid cosmetic case according to an embodiment of the present invention are discharged. 
         FIG. 23  is a cross-sectional view illustrating a state in which the contents in a liquid cosmetic case according to an embodiment of the present invention are blocked. 
     
    
    
     DETAILED DESCRIPTION 
     Preferred embodiments of the present invention will be described below in more detail with reference to the accompanying drawings. Moreover, detailed descriptions related to well-known functions or configurations will be ruled out in order not to unnecessarily obscure subject matters of the present invention. 
       FIG. 1  is a perspective view illustrating a liquid cosmetic case according to an embodiment of the present invention,  FIG. 2  is an exploded perspective view of the liquid cosmetic case illustrated in  FIG. 1 , and  FIG. 3  is a longitudinal cross-sectional view of the liquid cosmetic case illustrated in  FIG. 1 . 
     As illustrated in  FIGS. 1 to 3 , a liquid cosmetic case according to an embodiment of the present invention may include a body  100 , a container  200 , a container cap  300 , a pressing holder  400 , a valve unit  500 , a rotary elevator part  600 , a brush  710 , a brush holder  720 , and a lid  800 . 
     The body  100  is formed in a circular tube shape having an opened lower end such that liquid cosmetic contents are discharged through a discharging hole  111  formed in a closed upper central portion of the body  100 . 
     The container  200  is formed in a circular tube shape having an opened upper end and liquid contents are filled therein. The opened upper end portion of the container  200  is inserted in the body  100  through the opened lower end of the body  100  in a slidable manner. 
     The container cap  300  is coupled through an undercut to the inside of the opened upper end portion of the container  200  to thereby prevent the liquid contents filled in the container  200  from spilling out. A sealing ring (not shown) may be provided on the outside of the container cap  300 , the sealing ring maintaining sealing between the container cap  300  and the container  200  when the container cap  300  is coupled to the container  200  to thereby prevent the liquid contents from leaking between the container cap  300  and the container  200 . The container cap  300  has a valve insertion part  330  which is formed in a central portion thereof and in which a valve unit to be described later is inserted, and the liquid contents are discharged through the central portion when the valve unit  500  is opened/closed. 
     The pressing holder  400  is inserted in the container  200  in a slidable manner to thereby press and push the liquid contents toward the discharging side of the container  200 , that is, toward the container cap  300 , such that the contents of the container  200  are smoothly discharged. The liquid contents are filled in the container  200  between the container cap  300  and the pressing holder  400 . 
     The valve unit  500  is connected to the discharging side of the body  100  and the container cap  300  to thereby open/close the discharging hole  111 , and adjusts the contents movement such that when the container  200  upwardly moves toward the discharging side, the liquid contents are discharged to the brush  710  positioned outside the body  100  through the discharging hole  111  of the body  100 . This valve unit  500  allows the liquid contents to be discharged only when the container  200  is moved upward by rotating the rotary elevator part  600 , and when the container  200  is not moved upward, the valve unit  500  blocks the discharge of the contents to thereby prevent the liquid contents from leaking when the contents are not used. In addition, when the contents are used, the valve unit  500  adjusts the discharging amount such that a certain amount of contents is discharged. The valve unit  500  is configured to include a valve nozzle  510 , a sliding member  520 , an elastic member  530 , an opening/closing member  540 , and a connector  550 . 
     The rotary elevator part  600  is coupled to the lower end of the body  100  in a rotatable manner, and connected to the lower end of the container  200  through a cam structure, thereby upwardly moving the container  200  inside the body  100  during rotation. 
     The brush  710  is connected to the discharging side of the body  100  outside the body  100 . A moving space is formed inside the brush  710  such that the liquid contents discharged from the body  100  may be moved. A lining  150  lengthily extending from the discharging hole  111  toward the outside is inserted in the inner moving space and thereby moves the liquid contents discharged from the body  100  to be evenly supplied inside the brush  710 . In the present invention, an embodiment in which the cosmetic brush  710  is applied is exemplified, but the embodiment of the present invention is not limited thereto, and the portion of the brush  710  may also be replaced by a sponge ball (not shown) to be used. 
     The brush holder  720  is coupled to the discharging side of the body  100  to thereby support the cosmetic brush  710 . 
     The lid  800  is coupled to the discharging side of the body  100  in a detachable manner, is separated from the body  100  to thereby allow the brush  710  to be exposed to the outside when the contents are used, and is coupled to the body  100  to thereby cover the brush  710  not to be exposed to the outside when the contents are not used. 
       FIG. 4  is a perspective view of the body illustrated in  FIG. 2 , and  FIG. 5  is a longitudinal cross-sectional view of the body illustrated in  FIG. 4 . 
     As illustrated in  FIGS. 4 and 5 , the body  100  is formed in a hollow circular tube shape and includes: a container sliding part  110  in which the container  200  slides; a lid coupling part  120  which extends from the upper end of the sliding part  110 , has inner and outer diameters smaller than the container sliding part  110 , has a closed front surface, and has an outer side in which the lid  800  is inserted in a detachable manner; a hollow valve connecting part  130  which extends from the center of the front surface the lid coupling part  120  toward the inside of the lid coupling part  120 , and to which the valve unit  500  is connected; a holder coupling part  140  which extends towards the outer front side of the lid coupling part  120  and has an outer side in which the brush holder  720  is inserted in a detachable manner; and a lining  150  which extends from the center of the front surface of the lid coupling part  120  toward the front side of the lid coupling part  120  and is inserted in a brush hole  711 . 
     Rotation preventing ribs  110   a  may radially protrude on an upper inner circumferential surface of the container sliding part  110  such that the valve unit  500  is not rotated together when the rotary elevator part  600  is operated. 
     A fixing protrusion  120   a  on which the lid  800  is fixed by being hooked thereon may protrude on an outer side surface of the lid coupling part  120 , and a fixing protrusion  130   a  on which the brush holder  720  is hooked thereon may protrude on an outer side surface of the holder coupling part  140 . 
     The valve connecting part  130  and the lining  150  are connected through the discharging hole  111 . 
     In a lower end of an inner surface of the body  100 , a rotary coupling groove  110   b  is formed in an annular shape such that when the rotary elevator part  600  to be described later is coupled to the body  100  in a rotatable manner, a rotary coupling protrusion  610   a  of the rotary elevator part  600  is inserted and coupled into the rotary coupling groove  110   b  of the body  100 . 
       FIG. 6  is a perspective view of the container illustrated in  FIG. 2 ,  FIG. 7  is a longitudinal cross-sectional view of the container illustrated in  FIG. 6 , and  FIG. 8  is a side view illustrating portion A of  FIG. 6 . 
     As illustrated in  FIGS. 6 and 8 , the container  200  has a hollow circular tube shape having an opened upper end and a closed lower end, and has a space in which liquid contents may be filled. 
     A fixing protrusion  200   a  is formed on an inner circumferential surface in the opened upper end portion of the container  200  such that the container cap  300  is forcibly coupled thereto. A release prevention protrusion  200   b  is formed on a circumferential surface of the container  200  and prevents the container  200  from being easily released from the rotary elevator part  600  when a lower portion of the container  200  is inserted and coupled into the rotary elevator part  600 . 
     The container  200  includes a cam part  210  in which a plurality of inclining teeth  211  are formed in a lower end of an outer side surface of the container  200  in a circumferential direction at regular intervals. 
     The inclining teeth  211  are formed in a triangular shape having a downwardly inclining surface  211   a  and a vertical surface  211   b  with respect to the rotating direction of the rotary elevator part  600 . When the rotary elevator part  600  is rotated in one direction, a cam protrusion  611  formed on the inner circumferential surface of the rotary elevator part  600  upwardly moves the cam part  210  while contacting the downwardly inclining surface  211   a,  and thereby, the container  200  is upwardly moved. Furthermore, when the cam protrusion  611  passes the inclining surface  211   a  and is positioned on the vertical surface  211   b,  the cam protrusion  611  downwardly moves the cam part  210 , and thereby, the container  200  is downwardly moved. 
       FIG. 9  is a side view illustrating another example of portion A of  FIG. 6 . 
     As illustrated in  FIG. 9 , inclining teeth  212  are formed in a triangular shape having a downwardly inclining surface  212   a  and an upwardly inclining surface  212   b  with respect to a rotating direction of the rotary elevator part  600 . When the rotary elevator part  600  is rotated in both leftward and rightward directions, a cam protrusion  611  formed on the inner circumferential surface of the rotary elevator part  600  upwardly moves the cam part  210  while contacting the downwardly inclining surface  212   b,  and the container  200  is thereby moved up. Furthermore, the cam protrusion  611  passes the downwardly inclining surface  212   a  and upwardly moves the cam part  210  while contacting the upwardly inclining surface  212   b,  and thereby, the container  200  is downwardly moved. 
       FIG. 10  is a perspective view of the rotary elevator part illustrated in  FIG. 2 ,  FIG. 11  is a longitudinal cross-sectional view of the rotary elevator part illustrated in  FIG. 10 , and  FIG. 12  is a plan view of the rotary elevator part illustrated in  FIG. 10 . 
     As illustrated in  FIGS. 10 to 12 , the rotary elevator part  600  is formed in a hollow circular tube shape having an opened upper end and a closed lower end. The outer diameter of the rotary elevator part  600  is formed to correspond to that of the body  100 , and the inner diameter of the rotary elevator part  600  is formed to correspond to that of the container  200 . 
     The rotary elevator part  600  has a rotation coupling part  610  the outer diameter of which is formed to correspond to the inner diameter of the opened lower end portion of the body  100 , and which extends from the upper end of the rotary elevator part  600 . The rotation coupling part  610  is inserted in the opened lower end portion of the body  100 , and thereby, the rotary elevator part  600  is coupled to the lower end of the body  100  in a rotatable manner. In addition, a rotation coupling protrusion  610   a  is formed in an annular shape in the outer circumferential surface of the rotation coupling part  610 . Thus, when the rotation coupling part  610  in inserted in the opened lower end portion of the body  100 , the rotation coupling protrusion  610   a  is inserted in a rotation coupling groove  110   b  formed in the lower end inner circumferential surface of the body  100 , and thereby, the rotary elevator part  600  may be coupled to the lower end of the body  100  in a rotatable manner. 
     The rotary elevator part  600  is coupled to the container  200  such that the lower portion of the container  200  is inserted into the rotary elevator part  600  through an opened portion of the rotary elevator part  600 . At this time, a release prevention step  610   b  is formed on the upper end inner circumferential surface of the rotary elevator part  600 . Accordingly, in a state in which the lower portion of the container  200  is inserted in the rotation elevator part  600 , a release prevention protrusion  200   b  formed on the outer circumferential surface of the container  200  is stopped by the release prevention step  610   b,  and thus the container  200  inserted in the rotary elevator part  600  is not easily released from the rotary elevator part  600 . 
     The rotary elevator part  600  has a plurality of cam protrusions  611  which are formed on a lower end of the inner circumferential surface thereof in the circumferential direction thereof at regular intervals so as to correspond to the inclining teeth  211  and  212  of the cam part  210 . In the current embodiment, a configuration in which the cam protrusions  611  are formed in a linear cam protrusion shape inwardly protruding in the lengthwise direction of the rotary elevator part  600  is exemplified, but the embodiment of the present invention is not limited thereto, and the cam protrusions  611  may be formed in a cam part shape having inclining teeth which correspondingly cross the teeth  211  and  212  of the container cam part  210 . 
     When the rotary elevator part  600  is rotated, the container  200  is vertically moved as the cam protrusions  611  moves the cam part  210  in the vertical direction through inclining contact between the cam protrusions  611  and the inclining teeth  211  and  212 . For example, when the rotary elevator part  600  is rotated, upper ends of the cam protrusions  611  of the rotary elevator part  600  upwardly move the cam part  210  while contacting the downwardly inclining surfaces  211   a  and  212   a  of the container cam part  210 , and thus the container  200  is upwardly moved. Furthermore, when the cam protrusions  611  pass the downwardly inclining surfaces  211   a  and  212   a  and are positioned on a vertical surface  211   b  or upwardly inclining surface  212   b,  the cam protrusions  611  downwardly move the cam part  210 , and thus, the container  200  is downwardly moved. 
       FIG. 13  is a perspective view of the container cap illustrated in  FIG. 2 , and  FIG. 14  is a longitudinal cross-sectional view of the container cap illustrated in  FIG. 13 . 
     As illustrated in  FIGS. 13 and 14 , the container cap  300  may include a forcible coupling part  310 , a blocking plate  320 , and a nozzle insertion part  330 . 
     The forcible coupling part  310  is formed in a circular tube shape, has an undercut formed in an outer side thereof, and is thereby forcibly coupled inside the opened upper end of the container  200 . An insertion prevention protrusion part  310   a,  which has an annular shape and prevents the forcible coupling part  310  from being further inserted into the container  200 , protrudes on a central side of an outer circumferential edge of the forcible coupling part  310 . The undercut is formed only in a side of lower portion of the forcible coupling part  310  with respect to the insertion prevention protrusion part  310   a.  Guide protrusions  310   b,  which are inserted between the ribs  130  formed in the body  100  to thereby prevent the container cap  300  from being rotated in the body  100  and guide the container cap  300  to be slid, protrudes on an upper outer side of the forcible coupling part  310 . 
     The blocking plate  320  vertically extends inward from the lower end of the forcible coupling part  310  and thereby prevents the contents filled in the container  200  from being discharged to the outside. 
     The nozzle insertion part  330  is formed on a central portion of the blocking plate  320  to extend forward and backward from the blocking plate  320  and perpendicular to the blocking plate  320  and is formed in a hollow shape, and thereby, a valve nozzle  510  of the valve unit  500  to be described later is inserted in the nozzle insertion part  330  in a slidable manner. An end portion which extends toward the backward side, that is, the outer side of the blocking plate  420  among both end portions of the nozzle insertion part  330 , is formed to have a step, and thereby, the valve nozzle  510  is prevented from being released to the backward side of the blocking plate  320 . A gap is formed between a step part  330   a  of the nozzle insertion part  330  and the valve nozzle  510 , and the contents filled in the container  200  is introduced into the nozzle insertion part  330  through the gap. A stopping protrusion part  330   b,  by which the sliding member  520  of the valve unit  500  to be described later is stopped, protrudes on an outer side of the end positioned inside the blocking plate  320  among both end portions of the nozzle insertion part  330 . 
       FIG. 15  is a longitudinal cross-sectional view of the pressing holder illustrated in  FIG. 2 . 
     As illustrated in  FIG. 15 , the pressing holder  400  includes a pressing part  410  which is inserted in the container  200  and presses the contents toward the discharging side of the body  100 , and a contact part  420  formed on edges of the pressing part  410  and contacting the inner circumferential surface of the container  200  in a slidable manner. The contact part  420  is formed in a shape in which a central portion thereof is recessed toward the central side of the pressing part  410  with respect to both end portions. Thus, the central portion of the contact part  420  does not contact the inner circumferential surface of the container  200  and only both end portions contact the inner circumferential surface of the container  200  in a slidable manner. 
       FIG. 16  is a perspective view of the valve nozzle illustrated in  FIG. 2 , and  FIG. 17  is a longitudinal cross-sectional view of the valve nozzle illustrated in  FIG. 16 . 
     As illustrated in  FIGS. 16 and 17 , the valve nozzle  510  is provided to pass through the nozzle insertion part  330  of the container cap  300  in a vertically movable manner, and includes a nozzle body  511  and an annular protrusion part  512 . 
     The nozzle body  511  has a nozzle hole which has an opened upper end and is lengthily formed inside the nozzle body  511 , and an introduction hole  511   b  which is formed on a side portion of the nozzle body  511  and connected to the nozzle hole  511   a.  The nozzle hole  511   a  is connected to the discharging hole  111  of the body  100  through the connector  550  and moves the liquid contents to the discharging hole  111 . The introduction hole  511   b  allows the contents introduced in the nozzle insertion part  330  through the gap between the nozzle insertion part  330  of the container cap  300  and the valve nozzle  510  to be introduced in the nozzle hole  511   a.    
     The annular protrusion part  512  is formed at a position spaced apart toward the closed lower end of the nozzle body  511  from the introducing hole  511   b  in the side portion of the nozzle body  511 , and restrains sliding such that the step part  330   a  formed in the nozzle insertion part  330  of the container cap  300  is stopped by the annular protrusion part  512  such that the container cap  300  is not further slid forward. 
     The annular protrusion part  512  has a plurality of fine holes  512   a  through which the liquid contents introduced between the lower end portion of the nozzle body  511  and the container cap  300  pass through and which are spaced apart from each other. 
       FIG. 18  is a longitudinal cross-sectional view of the sliding member illustrated in  FIG. 2 . 
     As illustrated in  FIG. 18 , the sliding member  520  is supported by the connector  550  through an elastic member  530 , such as a spring, and includes: a sliding part  521  which has a circular tube shape inserted in the outer side of the connector  550  in a slidable manner; and an insertion part  522  which extends from the outer side of the sliding part  521  towards the lower end of the sliding member  520  in a bent manner and allows the nozzle insertion part  330  of the container cap  300  to be inserted between the insertion part  522  and the lower end of the sliding part  521 . 
     The upper end portion of a portion positioned inside the container cap  300  among both end portions of the nozzle insertion part  330  is inserted in the insertion part  522 . The upper end portion of the elastic member  530  is supported by the connector while contacting the connector  550 , and the lower portion of the elastic member  530  is inserted in the upper end portion of the sliding part  521  and contact the insertion part  522  to be supported by the insertion part  522 . 
     The sliding member  520  is slided by being pushed toward the discharging hole  111  of the body  100  by the container cap  300  which is moved together with the container  200  when a user rotates the rotary elevator part  600  and the container  200  is thereby upwardly moved by the operation of the cam part  210 . Also, while being returned to an original state by the recovering force of the elastic member  530 , the sliding member  520  pushes the container cap  300 , the container  200  and the opening/closing member  540  so as to return the container cap  300 , the container  200  and the opening/closing member  540  to original states. 
     A stopping protrusion part  522   a,  which allows the sliding member  520  to be stopped by the stopping protrusion part  330   b  of the nozzle insertion part  330  to be engaged and slided together with the container cap  300 , protrudes on the inner side surface of the insertion part  522 . 
       FIG. 19  is a side view of the opening/closing member illustrated in  FIG. 2 , and  FIG. 20  is a longitudinal cross-sectional view of the opening/closing member illustrated in  FIG. 19 . 
     As illustrated in  FIGS. 19 and 20 , the opening/closing member  540  is inserted in the outer side of the nozzle body  511  in a movable manner and associatively moved with the container  200  and the container cap  300  such that: when the sliding member  520  is slided toward the discharging hole  111  of the body  100 , the opening/closing member  540  is pushed toward the discharging hole  111  by a pressure of the contents introduced between the container cap  300  and the nozzle body  511  and thereby opens the introducing hole  511   b  of the nozzle body  511 ; and when the sliding member  520  is returned to the original state, the opening/closing member  540  is pushed by the sliding member  520  and blocks the introducing hole  511   b  while being returned to the original state. At this time, the opening/closing member  540  is inserted, in a movable manner, in a portion in which the introducing hole  511   b  is formed with respect to the annular protrusion part  512  of the nozzle body  511 . 
     When the sliding member  520  is returned to the original state, the opening/closing member  540  is slided only until contacting the annular protrusion part  512  of the valve nozzle  510 , and is prevented from being further slided by the annular protrusion part  512 . In addition, the sliding member  520 , the container cap  300  and the container  200  are also prevented from being slided. 
     The opening/closing member  540  includes a hollow opening/closing part  541  inserted in the outer side of the nozzle body  511 , and a contact part  542  which extends on the outer side of the opening/closing part  541  and contacts the inside of the nozzle insertion part  330  of the container cap  300  in a slidable manner. 
     A gap groove  541   a  which forms a gap without contacting the nozzle body  511  is formed on a side of the annular protrusion part  512  of the valve nozzle  510  in the inner circumferential surface of the opening/closing part  541 . Accordingly, when the opening/closing part  541  is slid toward the discharging hole  111  and the gap groove  541   a  overlaps the introducing hole  511   b,  the contents introduced in the gap groove  541   a  is introduced in the nozzle hole  511   a  through the introducing hole  511   b.  Conversely, when the opening/closing part  541  is slided toward the annular protrusion part  512  and the positions of the gap groove  541   a  and the introducing hole  511   b  are dislocated, the contents are prevented from being introduced through the introducing hole  511   b  by means of the inner circumferential surface of the opening/closing part  541 , the inner circumferential surface contacting the nozzle body  511 . 
     The contact part  542  is formed in a shape in which a central portion is recessed toward the inside of the opening/closing part  541  with respect to both end portions. Accordingly, the central portion of the contact part  542  does not contact the inner circumferential surface of the nozzle insertion part  330  and only both end portions of the contact part  542  contacts the inner circumferential surface of the nozzle insertion part  330  in a slidable manner. 
       FIG. 21  is a longitudinal cross-sectional view of the connector illustrated in  FIG. 2 . 
     As illustrated in  FIG. 21 , the connector  550  connects, in the body  100 , the discharging hole  111  and the valve nozzle  510 , supports the elastic member  530 , and includes a connecting part  551  and an elastic member supporting part  520 . 
     The connecting part  551  is formed in a hollow tube shape, and has an upper end portion inserted and fixed into the valve connecting part  130  of the body  100  and a lower end portion into which the opened upper end of the nozzle body  511  is inserted and fixed. The elastic member  530  is inserted in the outer side on the lower end portion of the connecting part  551 . 
     The elastic member supporting part  552  extends on the outer side of the connecting part  551  and supports the elastic member  530 , and forms an elastic member inserting groove  552   a  between the elastic member supporting part  552  and the connecting part  551 . 
       FIG. 22  is a cross-sectional view illustrating a state in which contents in a liquid cosmetic case according to an embodiment of the present invention are discharged. 
     As illustrated in  FIG. 22 , when a user rotates a rotary elevator part  600 , cam protrusions  611  formed on a lower end inner circumferential surface of the rotary elevator part  600  upwardly move the cam part  210  while contacting a downwardly inclining surface  211   a  of a cam part  210  formed on a lower end outer circumferential surface of a container  200 . Accordingly, the container  200  and a container cap  300  are slided toward a discharging hole  111 . In this process, a sliding member  520  of a valve unit  500  is also slided toward the discharging hole  111  by being pushed by the container cap  300 . 
     As such, when a sliding member  520  is slided toward the discharging hole  111  and the force pressing a opening/closing member  540  is released, the opening/closing member  540  is also slided toward the discharging hole  111  by the pressure of the contents applied to the opening/closing member  540  through fine holes  512   a  formed in an annular protrusion part  512  of a valve nozzle  510 . 
     That is, since there is a gap between a nozzle insertion part  330  of the container cap  300  and a nozzle body  511  of the valve nozzle  510 , liquid contents are filled in the gap and the liquid contents also contact the opening/closing member  540  through the fine holes  512   a  of the annular protrusion part  512 . Therefore, the opening/closing member  540  is always in a state of being pressed by the liquid contents. Accordingly, as described above, when the pressure of the sliding member  520  pressing the opening/closing member  540  is released, the opening/closing member  540  is slided toward the discharging hole  111  of the body  100  by the pressure of the contents. 
     When the opening/closing member  540  is slided to the discharging hole  111  and thereby a gap groove  541  formed inside the opening/closing part  541  and an introducing hole  511   b  formed in the nozzle body  511  coincide with each other, the liquid contents are introduced in a nozzle hole  511   a  through the gap groove  541   a  and the introducing hole  511   b.    
     The contents introduced in the nozzle hole  511   a  is moved to a lining  150  through a connector  550  connected to the nozzle body  511  and a valve connecting part  130  of the body  100 , and is supplied to a brush  710 . 
       FIG. 23  is a cross-sectional view illustrating a state in which the contents in a liquid cosmetic case according to an embodiment of the present invention are blocked. 
     As illustrated in  FIG. 23 , when a user further rotates the rotary elevator part  600  and a cam protrusion  611  passes a lowermost end of a inclining surface  211   a  of a cam part  210  and is positioned in parallel with a vertical surface  211   b,  a container  200  and a container cap  300  are slided toward the opposite side to a discharging hole  111  in a body  100 , as a cam part  210  is downwardly moved by a recovering force of an elastic member  530 . In this process, a sliding member  520  of a valve unit  500  is slided toward the opposite side of the discharging hole  111 , and an opening/closing member  540  is also slided by being pushed by the sliding member  520  until contacting an annular protrusion part  512  of a valve nozzle  510 . 
     As such, when the opening/closing member  540  contacts the annular protrusion part  512  of the valve nozzle  510 , a gap groove  541   a  of the opening/closing member  540  and an introducing hole  511   b  of a nozzle body  511  are dislocated, and thus the introducing hole  511   b  is blocked by the opening/closing member  540 . Accordingly, since the contents are prevented from being introduced through the introducing hole  511   b,  the content discharge is stopped. 
     At this time, although the pressure from the contents is continuously applied to the opening/closing member  540 , since the pressure by which the sliding member  520  pushes the opening/closing member  540  is greater than the pressure from the contents, the opening/closing member  540  maintains a state of contacting the annular protrusion part  512  and thereby blocking the introducing hole  511   b.    
     As such, it is possible to prevent the liquid contents from leaking when the contents are not used, because the moving passage of the contents is completely blocked by the opening/closing member  540  when the contents are not used. 
     According to the liquid cosmetic case of the present invention, when a user rotates a rotary elevator part  600 , a container  200  is moved up and down through a cam structure between the rotary elevator part  600  and the container  200  and thereby a valve nozzle  510  opens/closes a discharging hole  111  in association with the up-and-down movement of the container  200 . Thus, the liquid cosmetic case is very convenient in use because the discharge and blocking of the liquid contents may be simply adjusted. In addition, the present invention applies a valve type in which the discharging hole  111  is opened/closed through the valve nozzle  510 , thereby has an excellent sealing property because a discharging portion is always sealed, and may be applied to all liquid contents regardless of viscosity of the liquid contents. In addition, the valve-type liquid cosmetic case has a structure simpler than those of the button-type and rotary type liquid cosmetic cases and a reduced manufacturing cost, and may minimize failure and malfunction. 
     A liquid cosmetic case according to the present invention has the following effects. 
     First, according to the present invention, when a user rotates a rotary elevator part, a container is moved up and down through a cam structure between the rotary elevator part and the container and thereby a valve nozzle opens/closes a discharging hole in association with the up-and-down movement of the container. Thus, it is very convenient in use because the discharge and blocking of the liquid contents may be simply adjusted. 
     Secondly, the present invention applies a valve type in which the discharging hole is opened/closed through the valve nozzle and thus, the present invention has a discharging portion which is always sealed and an excellent sealing property and may be applied to all liquid contents regardless of viscosity of the liquid contents. 
     Thirdly, the present invention applies the valve-type liquid cosmetic case, which has a structure simpler than those of the button-type and rotary type liquid cosmetic cases and a reduced manufacturing cost, and in which failure and malfunction may be minimized. 
     The above-disclosed subject matter is to be considered illustrative and not restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments, which fall within the true spirit and scope of the present invention. Thus, to the maximum extent allowed by law, the scope of the present invention is to be determined by the broadest permissible interpretation of the following claims and their equivalents, and shall not be restricted or limited by the foregoing detailed description. Therefore, the above-described embodiments are illustrative in all the aspects, and should be construed as not being limitative. The scope of the present utility model is defined not by the detailed description of the invention but by the appended claims, and all modifications and changes induced from the spirit and scope of the utility model and the equivalent concept will be construed as being included in the present utility model.