KR20060016054A - Cosmetic container and pumping device used therein - Google Patents

Abstract

A cosmetic container and a pumping device used therein are disclosed. The pumping device includes a cylinder, a piston, a plunger, a receiving member, a pressure spring and a valve. The cylinder is formed with an inlet for allowing the flow of fluid into the inner space, the piston is installed in the cylinder. The plunger is disposed through the piston and has a flow path for communicating the inner space of the cylinder and the outside of the piston. The receiving member is installed in the inner space of the cylinder, and together with the plunger forms a separate receiving space in the inner space. The pressure spring is installed in the accommodation space of the accommodation member to press the plunger outwardly against the accommodation member. The valve closes the inlet when the pressure inside the cylinder increases, and opens the inlet when the pressure decreases. At this time, the piston opens the flow path when the plunger moves in the direction that resists the spring force and closes the flow path when the plunger moves in the spring direction. By operating the pumping device it is possible to discharge a certain amount of cosmetics in the container, in this case, since the metal spring does not directly contact the cosmetics there is an advantage that there is no risk that the cosmetics are altered or rust in the cosmetics.

Cosmetics, Containers, Pumping, Springs, Pistons, Cylinders

Description

Cosmetic container and a pumping device used for the same {Cosmetics container and a pumping device used for the same}

1 is a side cross-sectional view of a cosmetic container having a conventional pumping device,

2 is a side cross-sectional view of a cosmetic container having a pumping device according to the present invention;

3 is a partially enlarged view of FIG. 2;

4 is a partially exploded perspective view of FIG. 2;

5 and 6 are views showing the operating state of the cosmetic container shown in Figure 2, and

7 and 8 illustrate another embodiment of the present invention.

The present invention relates to a cosmetic container and a pumping device used therein, and more particularly, to a cosmetic container and a pumping device used in such a cosmetic container to enable the user to discharge a certain amount of cosmetic by pressing a nozzle button. .

Containers containing cosmetics are divided into a general form having a simple structure for accommodating cosmetics, and a pumping form in which a certain amount of cosmetics are discharged through a nozzle by pressing a button provided in the container. 1 is a view showing an example of a cosmetic container having a pumping device of such a cosmetic container.

As shown in FIG. 1, the cosmetic container includes a container part 110 for accommodating cosmetics and a pumping device 200 for discharging cosmetics contained in the container part 110 to the outside.

The container portion 110 is typically formed in a cylindrical shape. The container unit 110 forms an accommodation space 111 for accommodating cosmetics therein, and a vent hole 115 is formed on a lower surface of the container unit 110.

The container piston 113 is provided in the container unit 110. As the cosmetics contained in the accommodation space 111 is leaked to the outside by the pumping device 200 and the amount thereof is reduced, the container piston 113 gradually increases by the negative pressure in the accommodation space 111. To rise. At this time, since the outside air may be introduced into the container unit 110 through the vent hole 115, the lifting of the container piston 113 is not disturbed.

The pumping apparatus 200 may include a nozzle cap 220 installed at an upper portion of the container 110, a nozzle button 210 installed at an upper portion of the nozzle cap 220, and a cylinder 230 installed at a lower portion of the nozzle cap 220. The upper plunger 260 and the lower plunger 270 installed to penetrate the nozzle cap 220 and the spring 240 and the ball 250 installed in the cylinder 230 are included.

The nozzle cap 220 is fixed to the upper portion of the container portion 110 to provide a frame for installing the entire pumping device 200 on the container portion 110. A gasket 223 is installed between the nozzle cap 220 and the upper end of the container 110 to maintain an airtight state between the container 110 and the nozzle cap 220.

The nozzle button 210 is coupled to the upper plunger 260 at the top of the nozzle cap 220, the nozzle 213 is provided on the side of the nozzle button 210. The nozzle 213 provides an outlet through which the cosmetic finally flows out when the user presses the nozzle button 210.

The upper portion of the upper plunger 260 is coupled to the nozzle button 210 and the lower portion of the upper plunger 260 is coupled to the upper portion of the lower plunger 270. Therefore, as the user presses the nozzle button 210, the upper plunger 260 and the lower plunger 270 together with the nozzle button 210 are lowered together.

The cylinder 230 is disposed in the container 110, and the inlet 233 is formed at the lower end thereof to allow the cosmetics in the accommodation space 111 to flow into the cylinder 230. The ball 250 is provided near the inlet 233 in the cylinder 230.

The lower portion of the lower plunger 270 is accommodated in the cylinder 230, and the spring 240 is disposed between the lower end of the lower plunger 270 and the ball 250. Therefore, the lower plunger 270 is pressed upward by the elastic force of the spring 240, and the ball 250 is maintained in a state in which the inlet 233 of the cylinder 230 is closed.

On the other hand, the nozzle button 210, the upper plunger 260 and the lower plunger 270 is formed with flow paths 217, 267, 277 are formed to communicate with each other. The flow path 217 of the nozzle button 210 is connected to the nozzle 213, and an end of the flow path 217 of the lower plunger 270 is located in the cylinder 230. At this time, in a state where the lower plunger 270 is pressed upward by the elastic force of the spring 240 as shown in FIG. 6, the end opening of the flow path 277 of the lower plunger 270 is closed by the inner wall of the cylinder 230. In the state where the lower plunger 270 is moved downward, the distal opening of the flow path 277 of the lower plunger 270 is moved into the cylinder 230 to be opened in the inner space of the cylinder 230.

The pumping operation of the conventional cosmetic container having such a structure is performed as follows.

When the user presses the nozzle button 210 downward using a finger, the upper plunger 260 and the lower plunger 270 move downward together with resistance to the elastic force of the spring 240. In this case, the ball 250 strongly closes the inlet 233 of the cylinder 230 by the downward elastic force of the spring 240, and the flow path 277 of the lower plunger 270 is opened in the cylinder 230. Accordingly, the cosmetics previously filled in the cylinder 230 are flow paths 277 of the lower plunger 270, flow paths 260 of the upper plunger 260, and flow paths 217 of the nozzle button 210. It is discharged to the outside through the nozzle 213 through.

When the user releases the pressurized state of the nozzle button 210, the lower plunger 270, the upper plunger 260, and the nozzle button 210 are moved upward by the elastic force of the spring 240. At this time, since the flow path 277 of the lower plunger 270 moves upward in a closed state by the inner wall of the cylinder 230, the interior of the cylinder 230 is in a negative pressure state, and the pressure inside the cylinder 230 decreases. The ball 250 resists the elastic force of the spring 240 and moves upward. Therefore, the inlet 233 of the cylinder 240 is opened, and thus the cosmetics filled in the receiving space 111 are introduced into the cylinder 240 through the inlet 233.

That is, when the user presses the nozzle button 210, the ball 240 closes the inlet 233 and the cosmetics filled in the cylinder 240 are discharged to the outside through the nozzle 213, and the user presses the nozzle button. When the pressure 210 is released, the ball 240 opens the inlet 233 so that the cosmetics in the container 110 flow into the cylinder 230.

By repeating such a process, the user can spill out a certain amount of cosmetics every time the nozzle button 210 is pressed. At this time, if the amount of cosmetics in the container 110 is reduced by the outflow of cosmetics, the container piston 113 is raised by the pressure drop in the accommodation space 111, and thus the inlet 233 of the cylinder 230 is You will always be in contact with your cosmetics.

However, the conventional cosmetic container as described above has the following problems.

That is, since the cosmetics in the container 110 flows into the cylinder 230 to flow out, the metal spring 240 in the cylinder 230 while the cosmetics are filled in the cylinder 230. ) Is in contact with the When a large amount of time elapses in a state where the cosmetics are in contact with the metal spring 240, the cosmetic may be deteriorated, or when the metal spring 240 is rusted, rust may be included in the cosmetics that are spilled.

The present invention has been made to solve the above problems, an object of the present invention, while providing a cosmetic container that can be discharged by a certain amount of cosmetics by the pumping operation, the cosmetics are not deteriorated by the spring of the metal material. It is.

Another object of the present invention is to provide a pumping device for a cosmetic container that enables the production of the cosmetic container as described above.

Pumping apparatus according to the present invention for achieving the above object, the cylinder formed with an inlet for allowing the flow of fluid into the interior space; A piston installed in the cylinder; A plunger disposed through the piston and having a flow path communicating the inner space with the outside of the piston; An accommodation member installed in the inner space of the cylinder and forming a separate accommodation space in the inner space together with the plunger; A pressure spring installed in the accommodation space to pressurize the plunger outward with respect to the accommodation member; And a valve for closing the inlet when the pressure of the inner space increases and opening the inlet when the pressure of the inner space decreases. In this case, the piston opens the flow path when the plunger moves in a direction that resists the elastic force of the spring and closes the flow path when the plunger moves in the elastic force direction of the spring.

Wherein the plunger comprises: a first plunger disposed outside the piston; And a second plunger coupled to the first plunger and disposed at the inner space side. The second plunger is coupled to the first plunger through the piston, and the flow path is formed in the first plunger. The piston is spaced apart from the second plunger when the plunger moves in a direction that resists the spring force of the spring, and is in hermetic contact with the second plunger when the plunger is moved in the direction of elastic force of the spring.

On the other hand, a spaced spring is installed between the first plunger and the piston to press them in the spaced apart direction.

The piston is preferably made of a soft material.

The piston and the plunger are configured to be relatively movable within a predetermined range along the moving direction of the plunger.

On the other hand, any one of the receiving member and the plunger is formed with a rib for maintaining the airtight coupling state of the coupling portion between the receiving member and the plunger, the other of the receiving member and the plunger grooves corresponding to the rib Is formed.

On the other hand, the valve is composed of a single valve member disposed adjacent to the inlet in the inner space, the valve member is guided to open and close the inlet by a guide means. Here, the guide means: a guide protrusion formed on the valve member; And a guide member for guiding the guide protrusion in the longitudinal direction thereof.

On the other hand, according to the present invention, the pumping device having the configuration as described above; Container unit for receiving cosmetics; A nozzle cap installed in the container part, the cylinder being fixed to be positioned inside the container part, and having the plunger penetrated and exposed outward; And a nozzle button coupled to an outer end of the plunger and providing a portion for pressurizing the plunger with an external force.

Preferably, in the container portion, a container piston which is moved in the container portion is installed as the cosmetics in the container portion is discharged to the outside.

According to the present invention, the cosmetics can be discharged by a predetermined amount by the pumping operation, and at this time, since the metal spring does not directly contact the cosmetics, there is an advantage that the cosmetics are not deteriorated or rust is mixed in the cosmetics.

Hereinafter, with reference to the drawings will be described in detail preferred embodiments of the present invention.

Figure 2 is a side cross-sectional view of the cosmetic container according to the present invention, Figure 3 is a partially enlarged view of Figure 2, Figure 4 is an exploded perspective view of the pumping device portion of Figure 2. In FIG. 2, for convenience of illustration, the general part employed in the conventional cosmetic container is indicated by a dashed-dotted line, and the characteristic components of the present invention are indicated by solid lines.

The cosmetic container according to the present invention includes a container part 310 for accommodating cosmetics, and a pumping device 400 for flowing out cosmetics contained in the container part 310 to the outside.

The container portion 310 is formed in a cylindrical shape. The container part 310 forms an accommodation space 311 for accommodating cosmetics therein, and a vent hole 315 is formed on a lower surface of the container part 310.

The container piston 313 is installed in the container portion 310. As cosmetics contained in the accommodation space 311 flows out to the outside by the pumping device 400 and the amount thereof decreases, the container piston 313 is gradually formed by the negative pressure in the accommodation space 311. To rise. At this time, since the outside air may be introduced into the container portion 310 through the vent hole 315, the lifting of the container piston 313 is not disturbed.

Pumping device 400 according to the present invention is a nozzle cap 420, nozzle button 410, cylinder 430, piston 490, plunger 460, 470, receiving member 480, pressure spring 440 , And a valve 450.

The nozzle cap 420 is installed on the upper portion of the vessel 310, and provides a frame for installing the entire pumping device 400 on the vessel 310. A gasket 423 is installed between the nozzle cap 420 and the upper end of the container 310 to maintain an airtight state between the container 310 and the nozzle cap 420. In the present embodiment, the nozzle cap 420 is composed of two members 421 and 422 for the convenience of manufacturing, but the nozzle cap 420 may be composed of one member.

The nozzle button 310 is installed above the nozzle cap 420, and has a flow path 417 for discharging cosmetics. The nozzle 413 is provided on the side of the nozzle button 310. The nozzle 413 provides an outlet through which the cosmetic finally flows out when the user presses the nozzle button 410.

The cylinder 430 is disposed inside the container 310 and is fixed to the nozzle cap 420. In order for the cylinder 430 and the nozzle cap 420 to be coupled, a groove 427 is formed on the inner side of the nozzle cap 420 and a rib 437 coupled to the groove 427 on the outer side of the cylinder 430. ) Is formed. The cylinder 430 is formed with an inlet 433 for allowing the inflow of cosmetics into its internal space 437.

The piston 490 is provided in the cylinder 430. The piston 490 is made of a soft material such as rubber. The piston 490 moves along the inner wall of the cylinder 430 to apply a positive or negative pressure to the interior of the cylinder 430.

The plungers 460 and 470 are composed of a first plunger 460 and a second plunger 470. The first plunger 460 is disposed above the piston 490 and the second plunger 470 is disposed below the piston 490.

A gasket 425 is installed between the nozzle cap 420 and the first plunger 460, and the first plunger 460 is formed through the through hole 426 formed in the gasket 425 and the nozzle cap 420. It penetrates the ball 428 and is exposed to the outside. In this state, the upper portion of the first plunger 460 is coupled with the nozzle button 410. The first plunger 460 is formed with a flow path 467 that communicates the internal space 437 of the cylinder 430 with the external space thereof.

The second plunger 470 passes through the through hole 496 formed in the piston 490 so that the first plunger 460 is coupled with the lower portion. Ribs 463 are formed on the inner surface of the lower portion of the first plunger 460, whereby portions of the first plunger 460 where the ribs 463 are not formed are spaced apart from the second plunger 470. Through this portion, the flow path 467 is maintained in communication with the internal space 437 of the cylinder 430.

On the other hand, the first rib 491 and the second rib 492 are formed in the upper and lower surfaces of the piston 490 around the through hole 496, respectively. A spaced spring 464 is installed around the first rib 491 between the first plunger 460 and the piston 490 to apply an elastic force in a direction in which the first plunger 460 and the piston 490 are spaced apart from each other. . On the other hand, the second plunger 470 is formed with an inclined inclined surface 473 in the form of a cone, and the second rib 492 of the piston 492 is in contact with or spaced from the inclined surface 473. .

The receiving member 480 is installed in the inner space 437 of the cylinder 430. A plurality of ribs 435 are formed on the inner wall of the cylinder 430 to function to fix the receiving member 480 at a predetermined position in the cylinder 430.

The receiving member 480 together with the second plunger 470 forms a separate receiving space in the inner space 437. A pressure spring 440 composed of a coil spring is installed in the accommodation space to press the second plunger 470 upward against the accommodation member 480.

The second plunger 470 is coupled to the receiving member 480, and a plurality of ribs 476 are formed in the circumferential direction at the side to which the second plunger 470 is coupled. The rib 476 functions to maintain the hermetic engagement of the receiving member 480 and the second plunger 470. The receiving member 480 has a groove 486 corresponding to the rib 476. On the contrary, a rib may be formed on the receiving member 480 and a groove may be formed on the second plunger 470.

On the other hand, between the bottom surface of the cylinder 430 and the receiving member 480, a valve 450 is disposed at a portion adjacent to the inlet 433. The valve 450 is composed of a single disc-shaped member as shown in FIG. A guide protrusion 455 protruding upward is formed at the central portion of the valve 450, and a guide portion 485 having a guide hole for guiding the guide protrusion 455 in its longitudinal direction is formed at the receiving member 480. Formed. The guide protrusion 455 and the guide portion 485 constitute a guide means for guiding the movement of the valve 450 for opening and closing the inlet 433, by the guide means the valve 450 moves up and down It becomes possible.

On the other hand, the guide portion 485 may be formed integrally with the receiving member 480, or may be configured as a separate guide member independent of the receiving member 480.

Hereinafter, the operation of the cosmetic container according to the present invention having the above configuration will be described with reference to FIGS. 5 and 6.

In the normal state before the user presses the nozzle button 410, as shown in FIG. 6, the second plunger 470 is moved upward by the elastic force of the pressing spring 440, and the second plunger 470 is moved. The piston 490 is moved upward by the first and the first plunger 460 is moved upward by the spacer spring 464. At this time, since the inclined surface 473 of the second plunger 470 pressurizes the second rib 492 of the piston 490, the flow path 467 of the first plunger 460 may be formed in the inner space of the cylinder 430. 437) is in a closed state.

When the user presses the nozzle button 410 downward using a finger, the first plunger 460 starts to move downward in response to the elastic force of the pressure spring 440. At this time, since the piston 490 is made of a soft material, the piston 490 causes a predetermined amount of deformation in a fixed state by friction with the inner wall of the cylinder 430. Therefore, the piston 490 starts to descend after the first plunger 460 descends by a predetermined distance or more. That is, as a result, the piston 490 can be relatively moved by a height at which the piston 490 is deformed along its moving direction with respect to the first plunger 460. At this time, since the spaced spring 464 is compressed, the elastic force by the compression of the spaced spring 464 should be less than the friction between the piston 490 and the inner wall surface of the cylinder 430.

At this time, since the second plunger 470 is lowered at the same time as the first plunger 460 is lowered, the second plunger 470 is a state in which the inclined surface 473 is spaced apart from the second rib 492 of the piston 490. As a result, the flow path 467 of the first plunger 460 is maintained in communication with the internal space 437 of the cylinder 430 through the through hole 496 of the piston 490. At this time, as the pressure inside the cylinder 430 increases, the valve 450 closes the communication hole 433. Therefore, the cosmetics filled in the inner space 437 of the cylinder 430 are connected to the through hole 496 of the piston 490, the communication path 467 of the first plunger 460, and the communication path of the nozzle button 410 ( It is discharged to the outside through the nozzle 413 through 417. 5 illustrates a state in which the piston 490 is lowered through this process.

When the user releases the pressurized state of the nozzle button 410, the second plunger 470 is moved upward in the direction of the elastic force action of the pressure spring 440 by the elastic force of the pressure spring 440. Accordingly, the second plunger 470 simultaneously moves the piston 490 and the first plunger 460 upward. At this time, the piston 490 is subjected to a downward elastic force relative to the first plunger 460 by the spacing spring 464. Therefore, since the inclined surface 473 of the second plunger 470 is in contact with the second rib 492 of the piston 490, the flow path 467 of the first plunger 460 is maintained in the cylinder 430. It is in a closed state with respect to the internal space 437. Therefore, the piston 490 is raised in a state where the inner space 437 of the cylinder 430 is kept airtight with respect to the outside, whereby a negative pressure is applied to the inner space 437 of the cylinder 430.

At this time, the valve 450 moves upward along the guide part 485 to open the inlet 433 by the negative pressure of the inner space 437 of the cylinder 430, and the receiving space 311 of the container part 310 is opened. Cosmetics contained in the inside is introduced into the inner space 437 of the cylinder 430 through the inlet 433. FIG. 6 illustrates a state in which the inlet 433 is opened by the valve 450 by the upward movement of the piston 490.

That is, when the user presses the nozzle button 410, the inlet 433 is closed by the valve 450, and the flow path 467 is opened so that the cosmetics in the cylinder 430 inner space 437 are nozzles 413. When the user releases the pressurization of the nozzle button 410, the flow path 467 is closed, and the inlet 433 is opened by the valve 450, so that the cosmetics in the container 310 are cylinderd. 430 flows into the inner space 437.

By repeating such a process, the user can spill out a certain amount of cosmetics every time the nozzle button 410 is pressed. At this time, when the amount of the cosmetics in the container 310 is reduced by the outflow of the cosmetics, the container piston 313 rises due to the pressure drop in the accommodation space 311, whereby the inlet 433 of the cylinder 430 is You will always be in contact with your cosmetics.

Meanwhile, while the piston 490 is raised or lowered as described above, the pressure spring 440 is in a state accommodated in the accommodation space formed by the accommodation member 480 and the second plunger 470. At this time, since the receiving space is blocked with respect to the inner space 437 of the cylinder 430 by an airtight coupling between the receiving member 480 and the second plunger 470, the filling space is filled in the inner space 437 of the cylinder 430. Cosmetics do not flow into the receiving space. Therefore, even if the cosmetics are stored for a long time, since the cosmetics are not directly in contact with the pressure spring 440, the deterioration phenomenon of the cosmetics or phenomena of mixing in the cosmetics does not occur.

Meanwhile, the ribs 476 formed on the second plunger 470 and the grooves formed on the receiving member 480 maintain the airtight state of the coupling portion between the second plunger 470 and the receiving member 480 more firmly. It serves to further increase the sealing degree of the receiving space in the (480). Therefore, when the second plunger 470 is lowered, the pressure of the receiving space in the receiving member 480 is increased, and the upward pressing force is further increased when the second plunger 470 is raised by the increased pressure. Therefore, the effect of the cosmetics being more smoothly filled into the inner space 437 of the cylinder 430 can be obtained.

On the other hand, in the present embodiment, the piston 490 is made of a soft rubber material, the first plunger 460 and the second plunger by the predetermined amount of deformation when the first plunger 460 and the second plunger 470 is lowered. An example of descending later than 470 is shown.

However, it will also be possible for the piston 490 to be relatively movable in a predetermined range relative to the plungers 460 and 470 therethrough. That is, the piston 490 may be installed to be able to flow in the vertical direction, but the stopper may be formed in a predetermined portion on the plungers 460 and 470 to limit the flow range in the vertical direction of the piston 490. Accordingly, when the plungers 460 and 470 are lowered, the piston is later lowered by the upper stopper after the plungers 460 and 470 are lowered first, and the plungers 460 and 470 are first when the plungers 460 and 470 are upward. The piston is later uplifted by the lower stopper after) is raised, and the mechanism of opening and closing the flow path 467 is the same as described above. In this case, the piston 490 may be made of a hard material rather than a soft material such as rubber.

In addition, in this embodiment, by installing the separation spring 464 between the first plunger 460 and the piston 490, the airtightness between the second plunger 470 and the piston 490 during the upward movement of the plunger 460, 470. Although strengthening, even if the spacing spring 464 is not installed will be able to achieve the desired purpose.

7 and 8 illustrate another embodiment of the present invention. 7 and 8, except for the configuration of the valve 450a, the protrusion 455a, and the guide portion 485a, all other portions are the same and denoted by the same reference numerals. In the present embodiment, the valve 450a is made of a soft material, and the engaging portion of the protrusion 455a and the guide portion 485a has a stepped cross section so that the movement in the upward direction of the valve 450a is limited. Formed. Therefore, the valve does not move upward as in the above-described embodiment, and instead has a structure in which the inlet 433 is opened and closed by a valve 450a of a soft material.

That is, when the piston 490 moves downward, the valve 450a closes the inlet 433 as shown in FIG. 7 due to the pressure increase in the internal space 437 of the cylinder 430, and when the piston 490 moves upward. The inner space 437 of the cylinder 430 causes the edge of the valve 450a to be bent upward due to the pressure decrease, so that the valve 450a opens the inlet 433. The operation of the other parts is the same as described above.

As described above, according to the present invention, it is possible to discharge the cosmetic by a certain amount by the pumping operation, in this case, since the metal spring does not directly contact the cosmetic, there is no risk that the cosmetic may be altered or rust may be mixed in the cosmetic. There is this.

Although the above has been illustrated and described with respect to the preferred embodiment of the present invention, the present invention is not limited to the above-described specific embodiment and those skilled in the art can be variously modified within the scope of the present invention. Of course, such modifications fall within the protection scope of the present invention described in the claims of the present invention.

Claims (17)

A cylinder having an inlet formed therein for allowing the flow of fluid into the interior space; A piston installed in the cylinder; A plunger disposed through the piston and having a flow path communicating the inner space with the outside of the piston; An accommodation member installed in the inner space of the cylinder and forming a separate accommodation space in the inner space together with the plunger; A pressure spring installed in the accommodation space to pressurize the plunger outward with respect to the accommodation member; And a valve for closing the inlet when the pressure of the inner space increases and opening the inlet when the pressure of the inner space decreases. And the piston opens the flow path when the plunger moves in a direction that resists the elastic force of the spring and closes the flow path when the plunger moves in the direction of the elastic force of the spring. The method of claim 1, The plunger is: A first plunger disposed outside the piston; And And a second plunger coupled to the first plunger and disposed at the inner space side. The method of claim 2, The second plunger is coupled to the first plunger through the piston, The flow path is formed in the first plunger. The method of claim 3, wherein The piston is pumped, characterized in that it is spaced apart from the second plunger when the plunger moves in a direction that resists the elastic force of the spring, and that the plunger is hermetically contacted with the second plunger when the plunger is moved in the direction of the elastic force of the spring. Device. The method of claim 2, The pumping device further comprises a separation spring for pressing the first plunger and the piston in a spaced apart direction. The method of claim 1, Pumping device, characterized in that the piston is made of a soft material. The method of claim 1, And the piston and the plunger are relatively movable within a predetermined range along a moving direction of the plunger. The method of claim 1, One of the receiving member and the plunger is formed with a rib for maintaining an airtight coupling state of the coupling portion between the receiving member and the plunger And a groove corresponding to the rib is formed at the other of the accommodation member and the plunger. The method of claim 8, And a plurality of said ribs are formed. The method of claim 1, The pressure spring is a pumping device, characterized in that the coil spring. The method of claim 1, And the valve is composed of a single valve member disposed adjacent to the inlet in the inner space. The method of claim 11, Pumping device further comprises a guide means for guiding the movement for opening and closing the inlet of the valve member. The method of claim 12, The guide means: A guide protrusion formed on the valve member; And Pumping device comprising a; guide member for guiding the guide projection in its longitudinal direction. The method of claim 13, Pumping device, characterized in that the guide member is formed integrally with the receiving member. A pumping device having the configuration according to any one of claims 1 to 14; Container unit for receiving cosmetics; A nozzle cap installed in the container part, the cylinder being fixed to be positioned inside the container part, and having the plunger penetrated and exposed outward; And And a nozzle button coupled to an outer end of the plunger and providing a portion for pressurizing the plunger with an external force. The method of claim 15, The cosmetic container further comprises a container piston installed in the container portion, the container piston is moved in the container portion as the cosmetic in the container portion is discharged to the outside. The method of claim 16, Cosmetic container, characterized in that the ventilation hole for allowing the movement of the container piston is formed in one portion of the container portion.

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