KR200464671Y1 - A pump-dispenser for liquid bottle - Google Patents

Abstract

The present invention relates to a pump dispenser for a liquid container; Its purpose is to improve the spring arrangement, to prevent content deterioration, to improve product responsiveness and to evenly disperse granule contents even when they are mixed. According to the piston unit 230 of the pump dispenser according to the present invention for this purpose; It is arranged to be movable up and down on the cylinder body 220, the discharge passage 231 is formed in the longitudinal direction therein and a rod-shaped piston support 232, the lower portion is closed, and disposed in the lower end of the piston support 232 And open and close the communication hole 233 perforated on the bottom wall of the piston support 232 and the edge is formed of a hollow cylinder with a piston 234 that is in close contact with the inner wall of the cylinder body 220, and the bottom of the piston support 232. The piston shaft 236 is coupled to the upper end of the piston shaft 236 is coupled to the discharge port 251 of the push head 250 is provided on the upper side of the piston support 232, the outer peripheral flange 235 Is characterized in that it comprises a tooth-ring 237 consisting of a longitudinally extending tooth (237a) and integrally moving with the piston support 232 while maintaining a predetermined gap with the inner wall of the cylinder body (220). In addition, the coil spring 240 of the pump dispenser according to the present invention is arranged to surround the piston shaft 236 and the upper end is supported by the outward flange portion 235 of the piston shaft 236 and the lower end of the cylinder body 220 It is characterized in that it is supported on the upper side.

Description

Pump dispenser for liquid containers {A PUMP-DISPENSER FOR LIQUID BOTTLE}

The present invention relates to a pump dispenser for a liquid container; More particularly, the present invention relates to a "pump dispenser for a liquid container" which is mounted in a container containing a fluid (contents) and which is capable of suction-pumping and discharging the fluid to the outside by repeatedly pressing the push head.

Generally, a liquid dispenser pump dispenser (FLUID PUMP-DISPENCER) is used to store liquids or pastes such as cosmetics or other fluids (hereinafter referred to as "liquid contents") in order to discharge liquid contents by a certain amount through air pressure. Is laid.

As shown in FIG. 1, the conventional liquid container pump dispenser is coupled to a container inlet (not shown), and includes a pumping unit 10 provided with a pressure chamber 11a to temporarily store liquid contents by suctioning / pumping the same, and The pressure is applied to the pressure chamber 11a of the pumping unit 10 and the discharge head 21 is provided with a discharge port 21 for discharging the pumped liquid contents to the outside. The pumping part 10 is provided coaxially at the inner center of the cap housing 12, which is mounted at the inlet of the container by screwing, and has a pressure chamber 11a formed therein, and a pressure chamber of the cylinder 11. The coil spring 13 installed at 11a, the hollow piston 14 elastically supported at the upper end of the coil spring 13, and having a through hole 14a formed at one side thereof, and the hollow piston 14 slidably penetrate therethrough. Cylinder cap 15 for closing the upper end, the connecting pipe 16 for connecting the outlet 21 and the hollow piston 14 upper end of the push head portion 20, and the valve seat portion of the lower end of the cylinder ( A ball valve 17 is placed on 11b).

Therefore, when the user pushes the pushhead unit 20; The hollow piston 14 descends while overcoming the elastic force of the coil spring 13, whereby the liquid content filled in the pressure chamber 11a of the cylinder 11 is passed through the hole 14a → the hollow portion of the hollow piston 14 →. The connection pipe 16 is discharged to the outside through the discharge port 21. At this time, the ball valve 17 is in contact with the valve seat portion 11b by the content lowering pressure inside the cylinder 11 to block communication between the pressure chamber 11a and the inside of the container.

And when the user releases the pushhead portion 20; As the hollow piston 14 rises by the elastic support force of the coil spring 13, the through hole 14a is closed to block the contents, and a vacuum is formed in the pressure chamber 11a of the cylinder 11. Therefore, a part of the liquid contents stored in the container is sucked and filled into the pressure chamber 11a while raising the ball valve 17. By repeatedly pressing the push head portion 20, the liquid contents in the container are constantly discharged.

However, in the conventional liquid container pump dispenser, since the coil spring 13 made of metal is disposed inside the cylinder 11 which is a suction flow path of the liquid contents, the coil spring 13 may be discolored by the liquid contents during long-term use. This may cause deterioration of the liquid contents.

Recently, the product contents to which the pump dispenser is applied are gradually becoming more functional according to the advanced / specialized culture. If the metal coil spring 13 is always in contact with the contents in the cylinder 11, corrosion may proceed.

In addition, when the pump dispenser is applied to the essence cosmetic container, the contents of the granules may be mixed according to the high viscosity / high functionalization, and the granules of the granules are inhaled / discharged as they are evenly aggregated.

The present invention addresses this problem. An object of the present invention is to provide a "pump dispenser for liquid containers" that can improve the product responsiveness as well as prevent the deterioration of the contents by improving the arrangement of the spring.

In addition, another object of the present invention is to provide a "pump dispenser for a liquid container" that can be evenly discharged even when the contents in the form of granules are mixed.

The present invention for achieving this object is as follows. A cap body mounted on the neck of the container containing the liquid contents, a cylinder body coaxially installed inside the cap), and a pressure chamber in which the contents are sucked and temporarily stored therein; and a lower end of the cap body mounted on the inside of the cylinder body. It is removably received and the upper end extends upward through the center of the cap, the piston unit is formed with a discharge passage therein, a coil spring for elastically supporting the piston unit in the upward direction, and the upper end of the piston unit A pump dispenser for a liquid container having a push head coupled to the inside and having a discharge head, and a suction valve for opening and closing a suction port of the lower portion of the cylinder body in accordance with a lifting operation of the push head and the piston unit;

The piston unit is arranged to be movable up and down on the cylinder body and the discharge passage is formed in the longitudinal direction therein and the rod-shaped piston support is closed, the lower end of the piston support is disposed on the lower end of the piston support wall Open and close the communication hole perforated and the edge is in close contact with the inner wall of the cylinder body and the hollow hollow shaft, the lower end is fitted to the upper end of the piston support, the outward flange is provided at the upper end to the discharge port of the push head A piston shaft coupled in communication with each other and a tooth ring disposed on a lower surface of the piston support and having an outer circumference extending in a longitudinal direction to maintain a predetermined gap with the inner wall of the cylinder body move the tooth ring integrally with the piston support. Equipped;

The coil spring is disposed so as to surround the outer piston shaft and the upper end is supported by the outward flange portion of the piston shaft and the lower end is supported on the upper side of the cylinder body.

In addition, A coupling shaft protrudes from the center of the lower surface of the piston support; The coupling hole is drilled on the center of the tooth-ring so that the coupling shaft is fitted into the coupling shaft.

In addition, the present proposal; An upper part of the piston shaft is characterized in that the orifice-hole is disposed in the nozzle member perforated in the longitudinal direction.

According to the pump dispenser for a liquid container according to the present invention made of a configuration as described above; As the coil spring made of metal is erected to surround the upper edge of the hollow piston, the push head and the hollow piston operate in a non-eccentric manner so that the use responsiveness of the product is improved, and the metal coil spring has a liquid content. There is an advantage that the product does not discolor or deteriorate even after long use. In addition, the contents sucked into the cylinder body by the push head's pressing motion are discharged in a radial direction through the gap between the cylinder body wall and the tooth-ring, so that even when granular contents are mixed, they are evenly discharged. It has the advantage of being.

In addition, according to the pump dispenser for a liquid container according to the present invention; During the push operation of the push head, the contents are discharged while passing through the nozzle member disposed above the piston shaft, and thus the contents are more evenly discharged.

1 is a cross-sectional view showing the internal structure of a conventional pump dispenser for liquid containers.
2 is a cross-sectional view showing a state in which the pump dispenser for a liquid container according to the present invention is mounted in a container.
Figure 3 is a side cross-sectional view showing the internal structure of the pump dispenser for a liquid container according to the present invention.
Figure 4 schematically shows the shape of the tooth-ring of the piston unit and the coupling structure thereof according to the present invention.
5 and 6 show the operating state of the pump dispenser for a liquid container according to the present invention; Figure 5 shows the contents ejection process, Figure 6 shows the restoration process to the initial state after the contents ejection.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. Briefly explaining the accompanying drawings, Figures 2 to 4 are for explaining the configuration of the pump dispenser for a liquid container according to the present invention, Figures 5 and 6 shows the operating state of the pump dispenser for a liquid container according to the present invention will be.

<Description of the composition of the pump dispenser for a liquid container according to the present invention>

2 and 3; The pump dispenser 200 for a liquid container according to the present invention is mounted in a container 100 in which a liquid content is contained, and pumps the contents to eject them; Cylinder body 220 is provided with a cap 210 mounted on the neck 110 of the container 100, and a pressure chamber 221 is installed coaxially in the interior of the cap 210, the liquid contents are sucked and temporarily stored. ), The piston unit 230 is accommodated to move up and down inside the cylinder body 220 and the discharge unit 231 is formed therein for discharging the contents therein, and for elastically supporting the piston unit 230. Opening and closing of the coil spring 240, the push head 250 mounted on the upper end of the piston unit 230, and the suction port 222 provided in the lower portion of the cylinder body 220 in accordance with the lifting and lowering operation of the piston unit 230 The suction valve 260 is provided. Each component constituting the liquid container pump dispenser 200 is injection molded through a synthetic resin except for the coil spring 240, and their detailed structure is as follows.

First, the cap 210 has a circular shape and is mounted in a threaded manner on the neck 110 of the container 100 in which the liquid contents are contained. For this purpose, the internal thread 211 is processed on the inner wall of the cap 210. In addition, the upper portion of the cap 210 is open to move up and down while receiving the lower end of the push head 250.

Cylinder body 220 is installed coaxially in the cap 210, the air hole 223 is perforated on the upper wall and the cylindrical shape is provided with a pressure chamber 221 is temporarily stored in the liquid contents are sucked inside consist of. The air hole 223 is intended to smoothly discharge the contents by filling the outside air as the liquid contents stored in the container 100 escapes. In addition, the bottom of the cylinder body 220 is provided with a suction valve 260 for opening and closing the suction port 222 through which the liquid contents are sucked in accordance with the lifting and lowering operation of the piston unit 230. And the upper portion of the cylinder body 220 is a cylindrical bush 270 (BUSH) for guiding the shangdong of the piston unit 230 is fixedly arranged. The bush 270 is inserted into an open upper portion of the cylinder body 220 to form a cylindrical guide portion 271 for guiding the vertical movement of the piston unit 230, and an outward flange shape on the upper side of the guide portion 271. It is defined as a spring support portion 272 that covers the upper portion of the cylinder body 220 is seated and supported by the lower end of the coil spring 240.

As shown in FIGS. 3 and 4, the piston unit 230 is formed of a hollow body having a discharge passage 231 secured in a longitudinal direction therein, while being moved up and down together with the push head 250. To pressurize the liquid contents to the push head 250 side, it is arranged to move up and down on the cylinder body 220, the discharge passage 231 is formed in the longitudinal direction therein, the piston support in the form of a rod closed bottom 232 and the opening and closing of the communication hole 233 perforated on the bottom wall of the piston support 232 and the edge of the cylinder body 220 is in close contact with the inner wall of the piston 234, the hollow hollow shaft inside The piston shaft 236 and the piston support 232 is inserted into the upper end of the piston support 232 and coupled to the discharge port 251 of the push head 250 provided with an outward flange portion 235 at the upper end. Placed on the bottom surface to even out the contents To teeth that - the ring (237), equipped with a nozzle member 238 disposed on the upper piston shaft 236.

The communication port 233 of the piston support 232 is for communicating the discharge passage 231 and the pressure chamber 221, the lip piston 234 is the communication port 233 in accordance with the pressure inside the pressure chamber 221. ) Is selectively opened and closed. Tooth-ring 237 is disposed on the lower surface of the piston support 232, the outer circumference is composed of the longitudinally extending teeth (237a) and the inner wall of the cylinder body 220 and a predetermined gap (in the embodiment of the present invention 0.8 ~ 1.2mm) is configured to move integrally with the piston support (232). To this end, the coupling shaft 232a is protruded from the center of the lower surface of the piston support 232, and the coupling hole 237b is perforated so that the coupling shaft 232a is fitted to the center of the tooth ring 237. Therefore, when the piston unit 230 is lowered together with the push head 250, the liquid contents of the pressure chamber 221 pass evenly through the gap between the inner wall of the cylinder body 220 and the tooth ring 237 and communicate with the communication port. It is pumped toward the discharge flow path 231 through 233. In addition, the nozzle member 238 is fitted to the upper portion of the piston shaft 236, the orifice hole 238a is perforated in the vertical direction. Accordingly, the contents in the container 100 are discharged by suction pumping more uniformly. In addition, the shangdong (raising and lowering movement) of the piston unit 230 is made accurately without distortion through the bush 270, as described above.

The coil spring 240 is for restoring the push head 250 and the piston unit 230 to an initial state, and is installed to stand around the upper end of the piston unit 230 exposed to the cap 210. That is, the upper end of the metal coil spring 240 is supported by the outward flange portion 235 of the piston unit 230, and the lower end thereof is seated and supported by the spring support 272 of the bush 270, and the discharged contents and The elastic unit is always elastically supported in the upward direction without contacting.

In addition, the push head 250 is actually pressed by the user, and is inserted into the upper end of the piston unit 230 extending upward through the cap 210 by being fitted by a force fitting method, and having an discharge passage 231 therein. The discharge port 251 is provided to communicate with it. Accordingly, the push head 250 moves integrally with the piston unit 230, and the liquid contents pumped through the discharge passage 231 are ejected to the outside through the discharge port 251.

On the other hand, the suction valve 260 is to control the suction of the liquid contents into the pressure chamber 221 in accordance with the lifting and lowering movement of the piston unit 230; According to the pressure change of the pressure chamber 221, the inlet 222 drilled in the lower end of the cylinder body 220 is opened and closed. In addition, the suction port 222 is fitted with a suction tube 280 for guiding the suction of the liquid contents stored in the container 100 is assembled.

<Description of the operation of the pump dispenser 200 for a liquid container according to the present invention>

Next will be described with reference to Figures 2 and 5 and 6 the operation of the liquid container pump dispenser 200 and the resulting effects according to the present invention configured as described above.

First, in the initial state of the liquid container pump dispenser 200, as shown in FIG. 2, the push head 250 and the piston unit 230 by the coil spring 240 is raised (up state) In the pressure chamber 221 of the cylinder body 220, a small amount of sucked liquid contents is stored.

In this state, as shown in FIG. 5; When the user pushes the push head 250 downward, the piston spring 240 is compressed and at the same time guided through the bush 270, the piston unit 230 is lowered. As the piston unit 230 descends, the liquid content in the pressure chamber 221 flows into the interior of the piston unit 230, that is, the discharge flow path 231, through the communication port 233, and then continues the push head 250. It is discharged to the outside through the discharge port 251 of. At this time, the contents of the pressure chamber 221 is radially dispersed through the gap between the inner wall of the cylinder body 220 and the tooth ring 237 enters the communication port 233 side. Accordingly, even when the functional content in the form of granules is mixed, evenly enters into the communication port 233 without agglomeration, and the orifice hole 238a is evenly discharged at a uniform pressure even through the perforated nozzle member 238. In the liquid contents discharge process, as the internal pressure of the pressure chamber 221 increases due to the lowering of the piston unit 230, the suction valve 260 is maintained in a closed state of the inlet 222.

And when the user releases the pushhead 250, as shown in FIG. 6; The piston unit 230 is returned upward by the elastic restoring force of the coil spring 240. At this time, the liquid contents in the container 100 are introduced into the pressure chamber 221 of the cylinder body 220 while opening the suction valve 260. That is, when the push head 250 and the piston unit 230 are gradually raised by the restoring force of the coil spring 240, a vacuum pressure is applied to the pressure chamber 221. Accordingly, the suction valve 260 is slightly open at the suction port 222, and the liquid contents in the container 100 are sucked into the pressure chamber 221 through the suction tube 280 and the suction port 222. By repeating the pressing operation of the push head 250, the liquid contents contained in the container 100 can be pumped and used.

As such, in the liquid container pump dispenser 200 according to the present invention, the coil spring 240 is disposed to surround the outside of the piston unit 230, so that the push head 250 and the piston unit 230 are not eccentric. It will work correctly in place. In addition, since the metal coil spring 240 does not come into contact with the liquid contents, there is no fear of discoloration or deterioration of the contents even when the product is used for a long time.

In addition, by the tooth ring 237 disposed on the lower surface of the piston support 232, the contents in the pressure chamber 221 enters the communication port 233 while being radially dispersed, whereby the contents are evenly and uniformly ejected.

On the other hand, in the embodiment of the present invention has been described with a pipe-type pump dispenser configuration in which the air hole 223 is drilled in the cylinder body 220 and the suction tube 280 is fitted in the suction port 222, for example, The technical concept of the present invention can be applied to a vessel product of a so-called airless type in which a piston is raised as a separate piston (not shown) is disposed inside the vessel 100 and the liquid contents gradually escape.

100. Container 200. Pump dispenser 210. Cap
220. Cylinder body 221 Pressure chamber 222 Inlet
230. Piston unit 231. Discharge passage 232. Piston bearing
233. Communication port 234 Piston 235 Outward flange
236. Piston shaft 237 Tooth ring 238 Nozzle member
240. Coil spring 250. Pushhead 251 Discharge outlet
260. Suction valve 270 Bush 280 Suction tube

Claims (3)

Cap 210 is mounted on the neck 110 of the container 100 in which the liquid contents are contained, and the pressure chamber 221 is installed coaxially in the interior of the cap 210 and the contents are sucked and temporarily stored therein. The formed cylinder body 220 and the lower end is accommodated to move up and down inside the cylinder body 220 and the upper end extends upward through the center of the cap 210, the discharge passage 231 therein. Is formed in the piston unit 230, the coil spring 240 for elastically supporting the piston unit 230 in an upward direction, coupled to the upper end of the piston unit 230, the push in the discharge port 251 is formed therein Liquid container having a head 250 and a suction valve 260 for opening and closing the inlet 222 of the lower cylinder body 220 in accordance with the lifting and lowering operation of the push head 250 and the piston unit 230 In the pump dispenser for;
The piston unit 230 is disposed to be movable up and down in the cylinder body 220, the discharge passage 231 is formed in the longitudinal direction therein and the piston support 232 of the rod shape of the lower portion is closed, and It is disposed at the lower end of the piston support 232 and opens and closes the communication hole 233 perforated on the lower wall of the piston support 232 and the edge is the piston 234 in close contact with the inner wall of the cylinder body 220, the inside is hollow A piston shaft 236 which is formed of a hollow shaft and has a lower end fitted to an upper end of the piston support 232, and has an outward flange portion 235 provided at an upper end thereof so as to be connected to the outlet 251 of the push head 250. It is disposed on the lower surface of the piston support 232, the outer circumference is composed of teeth extending in the longitudinal direction (237a) integrally with the piston support 232 while maintaining a predetermined gap with the inner wall of the cylinder body 220 Tooth-ring ( 237;
The coil spring 240 is disposed so as to surround the outside of the piston shaft 236 and the upper end is caught by the outward flange portion 235 of the piston shaft 236 and the lower end is on the upper side of the cylinder body 220. Pump dispenser for liquid containers, characterized in that supported. The method of claim 1,
A coupling shaft 232a protrudes from the center of the lower surface of the piston support 232;
The pump dispenser for the liquid container, characterized in that the coupling hole (237b) perforated so that the coupling shaft (232a) is fitted to the center of the tooth ring (237). The method of claim 1,
Pump dispenser for a liquid container, characterized in that the nozzle member (238) having an orifice-hole (238a) perforated in the vertical direction is disposed above the piston shaft (236).

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