KR20120004976U - A pumping-dispenser for liquid bottle - Google Patents

Abstract

The present invention relates to a pumping dispenser for a liquid container; The purpose is to improve the arrangement structure of the spring and the inlet valve structure to prevent the deterioration of the contents as well as to improve the product responsiveness.
According to the pumping dispenser for a liquid container according to the present invention for this purpose; The coil spring made of metal is arranged to surround the piston unit, so that the push head and the piston unit operate in a non-eccentric manner so that the use responsiveness of the product is improved, and the metal coil spring does not come into contact with the liquid contents. Therefore, there is no fear of discoloration or deterioration of contents even after long-term use of the product.
In addition, the valve plate for opening and closing the suction port of the suction guide is integrated with the cylinder body through a synthetic resin to operate by its elastic restoring force, so that there is no risk of corrosion even in contact with the liquid contents, and the product reliability can be increased. Can be improved.
In addition, because the shankdong of the piston unit is made accurately while being guided through the bush disposed on the upper cylinder body, there is an advantage that the product responsiveness is further improved.

Description

Pumping dispenser for liquid containers {A PUMPING-DISPENSER FOR LIQUID BOTTLE}

The present invention relates to a pumping dispenser for a liquid container; More specifically, the present invention relates to a "liquid container pumping dispenser" 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.

In general, liquid or paste-based cosmetics or other fluids (hereinafter referred to as "liquid contents") are used for pumping dispensers (FLUID PUMPING-DISPENCER) for liquid containers so that the liquid contents can be discharged by a certain amount through air pressure. Is laid.

As shown in FIG. 1, the conventional pumping dispenser for a liquid container is coupled to an inlet (not shown) of the container, and includes a pumping part 10 provided with a pressure chamber 11a to temporarily store and inhale / pump liquid contents, The pressure head 11a of the pumping part 10 is applied to the push head part 20 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 screwed to the container inlet and has a pressure chamber 11a formed therein, and the pressure of the cylinder 11. The coil spring 13 provided in the seal 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 are slidable. A cylinder cap 15 penetrating and closing the upper end thereof, a connecting pipe 16 for connecting the outlet 21 of the push head part 20 and the upper end of the hollow piston 14, and a valve at the bottom of the cylinder 11; A ball valve 17 placed on the seat portion 11b is provided.

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 hollow portion 14a to the hollow portion of the hollow piston 14. → it is discharged to the outside through the connecting pipe (16) → the discharge port (21). At this time, the ball valve 17 abuts against 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 pumping dispenser for liquid containers, since the coil spring 13 and the ball valve 17 made of metal are disposed inside the cylinder 11, which is a suction flow path of the liquid contents, the coil spring is formed by the liquid contents when used for a long time. Of course, the 13 and the ball valve 17 are discolored, and the liquid contents may also be deteriorated. In particular, recently, the contents of the product to which the pumping dispenser is applied are gradually becoming more functional according to the advanced / specialized culture. In the cylinder 11, the metal coil spring 13 and the ball valve 17 are kept in contact with the contents at all times. There is a problem that can proceed.

In addition, in the conventional pumping dispenser, since the ball valve 17 and the coil spring 13 are always assembled sequentially in the cylinder 11, considerable care is required in assembling work.

The present invention is to solve this problem; An object of the present invention is to provide a "pumping dispenser for liquid containers" that can improve the product responsiveness as well as to prevent the deterioration of the contents by improving the spring arrangement and the inlet valve structure.

In addition, another object of the present invention is to provide a "liquid container pumping dispenser" that can be assembled more easily while reducing the number of parts by increasing the product responsiveness by integrally configuring the suction valve in the cylinder.

The present invention for achieving this object is; 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 liquid contents are sucked and temporarily stored therein; 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 In the pumping dispenser for a liquid container having a push head coupled to the inside and a suction valve unit for opening and closing the lower portion of the cylinder body in accordance with the lifting and lowering operation of the push head and the piston unit; The suction valve unit is made of a cylindrical shape so that the suction valve unit is fitted into the lower end of the cylinder body and the suction guide is formed in the inside of the suction port for guiding the suction of the contents and protruding the valve seat portion in the form of a band along the upper side of the suction port, A valve plate provided inside the lower end of the cylinder body and covering the valve seat of the suction guide to form a predetermined gap with the lower inner wall of the cylinder body, and integrally connecting the edge of the valve plate to the lower inner wall of the cylinder body; A plurality of connection-bridges exerting elastic restoring force so as to allow shangdong of the valve plate; The coil spring is disposed to surround the upper end of the piston unit, and the upper end is supported by the flange provided at the upper end of the piston unit, and the lower end is supported on the upper side of the cylinder body.

In addition, the present invention; A step-coupling portion having a diameter-reducing portion at the bottom of the cylinder body and having a strip-shaped coupling groove formed on an outer circumference thereof is provided; The step-coupled part is coupled to surround the outside, the inner wall is coupled to the engaging groove is characterized in that the coupling jaw formed in the form of a belt-coupling portion is provided in the suction guide.

In addition, the present invention; A bush made of a guide part inserted into the open upper part of the cylinder body to guide the vertical movement of the piston unit, and a spring support part provided in an outward flange shape on the upper side of the guide part and seated and supported by the lower end of the coil spring. ) Is disposed above the cylinder body.

According to the pumping 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, since the valve plate and the connection-bridge forming the intake valve unit are integrally formed at the lower end of the cylinder body manufactured through the synthetic resin, there is no effect of corrosion even in contact with the liquid contents, thereby improving product reliability.

In addition, according to the present invention; Since the valve plate and the connection-bridge forming the intake valve unit are integrally formed in the cylinder body, there is an advantage that the assembly operation thereof can be made simpler.

In addition, according to the present invention; Since the shanghai of the hollow piston is guided through the bush (BUSH) disposed on the upper portion of the cylinder body, there is an advantage that the product responsiveness is further improved.

1 is a cross-sectional view showing the internal structure of a conventional pumping dispenser for liquid containers.
2 is a cross-sectional view showing a state in which the pumping dispenser for a liquid container according to the present invention is installed as a container.
Figure 3 is a side cross-sectional view showing the internal structure of the pumping dispenser for a liquid container according to the present invention.
Figure 4 is an exploded perspective view showing an extract of the cylinder body and the suction guide of the pumping dispenser for a liquid container according to the present invention.
5 and 6 are cross-sectional views showing a coupling structure of the cylinder body and the suction guide according to the present invention.
7 and 8 show the operating state of the pumping dispenser for a liquid container according to the present invention; Figure 7 shows the contents ejection process, Figure 8 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 6 are for explaining the configuration of the pumping dispenser for a liquid container according to the present invention, Figures 7 and 8 shows the operating state of the pumping dispenser for a liquid container according to the present invention will be.

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

2 and 3; The pumping dispenser 200 for a liquid container according to the present invention is mounted on the container 100 in which the liquid contents are contained and pumped out to eject the contents; 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. ), A piston unit 230 accommodated in the cylinder body 220 so as to be movable up and down and having a discharge passage 231 formed therein, and a coil spring 240 for elastically supporting the piston unit 230. ), A push head 250 mounted on the upper end of the piston unit 230, and a suction valve unit 260 that opens and closes the lower portion of the cylinder body 220 according to the lifting and lowering operation of the piston unit 230. . Each component of the liquid container pumping 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.

The cylinder body 220 is installed coaxially in the cap 210, the negative pressure hole 222 is perforated in the upper wall and the cylindrical shape is provided with a pressure chamber 221 inside which the liquid contents are sucked and temporarily stored. consist of. The negative pressure hole 222 is intended to smoothly discharge the contents by filling the outside air as the liquid contents stored in the container 100 escapes. In addition, a suction valve unit 260 for sucking liquid contents is provided at the bottom of the cylinder body 220. 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.

The piston unit 230 is composed of a hollow body having a discharge passage 231 secured in the longitudinal direction therein, while descending together with the push head 250 to press the liquid contents in the pressure chamber 221 to the push head 250 side. For export, the lower end of the cylinder body 220 is accommodated so as to be movable, and the upper end is extended through the cap 210 to the top. In addition, a communication hole 232 for drilling the discharge passage 231 and the pressure chamber 221 is drilled in the lower end of the piston unit 230, and the outside of the communication hole 232 is in close contact with the inner wall of the pressure chamber 221. A piston 233 in the form of a lip that selectively opens and closes the communication hole 232 according to the internal pressure of the seal 221 is provided. Therefore, when the piston unit 230 is lowered together with the push head 250, the pressure is applied to the liquid contents of the pressure chamber 221 to be pumped toward the discharge passage 231 through the communication hole 232. As described above, the shandong (rising and descending movement) of the piston unit 230 is made precisely without distortion through the bush 270. In addition, the upper portion of the piston unit 230 is provided with an integrally extending flange portion 234 in the form of a disc, which is to support the upper end of the coil spring 240.

The coil spring 240 is for restoring the push head 250 and the piston unit 230 to an initial state, and is installed so as to surround the outer edge of the upper end of the piston unit 230 exposed to the outside. That is, the upper end of the metal coil spring 240 is supported by the flange portion 234 of the piston unit 230, and the lower end thereof is seated and supported by the spring support portion 272 of the bush 270, and the discharged contents The piston unit 230 is always elastically supported in an upward direction without contact.

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. A jet port 251 is provided to communicate with each other. 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 jet port 251.

On the other hand, the suction valve unit 260 controls the suction of the liquid contents into the pressure chamber 221 in accordance with the lifting and lowering movement of the piston unit 230; As shown in Figure 4 and 5, the cylinder body 220 is formed in a cylindrical shape to be coupled to the lower end coupled to the inside of the suction port 261a for guiding the contents suction perforated and strips along the upper side of the suction port 261a The cylinder body 220 is provided inside the suction guide 261 and the lower end of the cylinder body 220 and the valve seat portion 261b of the suction guide 261 is provided so that the valve seat portion 261b protrudes. The valve plate 262 and the valve plate 262 which form a constant gap G with the lower inner wall of the lower part of the cylinder body 220 are integrally connected to the lower inner wall of the cylinder body 220, and the vertical movement of the valve plate 262 is allowed. Consists of a plurality of connection-bridges 263 to exert an elastic restoring force. Therefore, the valve plate 262 is integrally formed through the plurality of connection-bridges 263 in the open lower portion of the cylinder body 220, and a separate assembly process is not required.

In addition, the suction guide 261 is assembled by fitting the lower end of the cylinder body 220, for this purpose, the diameter is reduced at the lower end of the cylinder body 220 and the stepped groove 224 is formed in the outer circumference -The coupling part 223 is provided, the suction guide 261 is coupled to surround the step-coupled part 223 from the outside and the coupling jaw 261 d in the form of a band to be seated and coupled to the coupling groove 224 on the inner wall. The formed cylinder-engaging portion 261c is provided. Accordingly, when the cylinder-coupling portion 261c of the suction guide 261 is inserted into the step-coupling portion 223 of the cylinder body 220 in a force-fitting manner, as shown in FIG. 6, the suction guide 261 is provided. The valve plate 262 is in contact with the valve seat portion 261b to close it. In addition, as illustrated in FIGS. 2 and 3, a suction tube 280 for guiding suction of the liquid content in the container 100 may be inserted into the suction port 261a of the suction guide 261. Although the suction tube 280 is inserted into the suction guide 261 in the embodiment of the present invention, a separate piston (not shown) is disposed inside the container 100 so that the piston as the liquid contents gradually escapes. Suction tube 280 is not applied to a container product of the so-called airless type coming up.

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

Next, the operation of the pumping dispenser 200 for liquid container according to the present invention configured as described above and the effect thereof will be described with reference to FIGS. 2, 7 and 8.

First, in the initial state of the pumping dispenser 200 for a liquid container, as shown in FIG. 2, the push head 250 and the piston unit 230 are lifted upward by the coil spring 240 (elevated 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. 7, when the user pushes the push head 250 downward, the piston spring 230 is compressed and simultaneously guided through the bush 270 while the piston unit 230 descends. As the piston unit 230 descends, the liquid contents in the pressure chamber 221 flow into the interior of the piston unit 230, that is, the discharge passage 231 through the communication hole 232, and then the push head 250 continues. It is ejected to the outside through the outlet 251 of the. In the liquid contents ejection process, as the internal pressure of the pressure chamber 221 increases due to the lowering of the piston unit 230, the valve plate 262 of the suction valve unit 260 closes the suction port 261a of the suction guide 261. It remains in one state.

And when the user releases the push head 250, as shown in Figure 8, the piston unit 230 is returned to the upper by the elastic restoring force of the coil spring 240. At this time, the liquid contents in the container 100 flow into the pressure chamber 221 of the cylinder body 220 while opening the valve plate 262. 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 plate 261a is opened while the valve plate 262 of the suction valve unit 260 is slightly lifted from the valve seat portion 261b, and the liquid contents in the container 100 are suction tube 280 and suction port 261a. It is sucked into the pressure chamber 221 through. At this time, the liquid contents are easily sucked while being radially dispersed through the gap G between the bottom inner wall of the cylinder body 220 and the valve plate 262. 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 pumping dispenser 200 for a liquid container 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, the valve plate 262 of the suction valve unit 260 is also made integrally through the synthetic resin together with the cylinder body 220 to open and close the suction port 261a with its elastic restoring force, so that no separate assembly process is required. Contact with the liquid contents results in no chemical reactions and no alteration.

100 .. Container 110. Neck 200. Pumping dispenser for liquid containers
210. Cap 220. Cylinder body 221 Pressure chamber
222..Negative pressure hole 223.Step-coupled portion 230.Piston unit
231..outflow passage 232..communication hole 240 .. coil spring
250. Discharge head 251. Outlet 260. Suction valve unit
261..Suction guide 261a..Suction port 261b..Valve seat
261c. Cylindrical-coupling 262 Valve plate 263 Connection bridge
270. Bush 271. Guide part 272 Spring support part
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 liquid contents are sucked and temporarily stored therein. ) Is formed and the cylinder body 220, the lower end is accommodated to move up and down inside the cylinder body 220, the upper end is extended through the center of the cap 210, the discharge passage 231 inside ) 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 discharge port 251 is formed therein Pumping for a liquid container having a push head 250, the suction valve unit 260 for opening and closing the lower portion of the cylinder body 220 in accordance with the lifting and lowering operation of the push head 250 and the piston unit 230 In a dispenser;
The suction valve unit 260 is formed in a cylindrical shape to be fitted to the lower end of the cylinder body 220, the inlet hole 261a for guiding the suction of the contents is perforated inside the belt shape along the upper side of the inlet port 261a The inlet guide 261 provided with the protruding valve seat 261b and the lower end of the cylinder body 220 are provided inside the cylinder seat 220 while covering the valve seat 261b of the suction guide 261. The valve plate 262 and the valve plate 262 which form a constant gap G with the lower inner wall of the 220 and the valve plate 262 are integrally connected to the lower inner wall of the cylinder body 220 and the valve plate 262. A plurality of connection-bridges 263 which exert an elastic restoring force so as to allow a shangdong of the;
The coil spring 240 is disposed to surround the outer edge of the upper end of the piston unit 230 and the upper end thereof is supported by the flange 234 provided at the upper end of the piston unit 230, and the lower end of the cylinder body ( Pumping dispenser for a liquid container, characterized in that supported on the upper side. The method of claim 1,
The lower end of the cylinder body 220 is provided with a step-coupling portion 223 having a reduced diameter and a band-shaped coupling groove 224 formed on an outer circumference thereof;
The suction guide 261 is coupled to surround the step-coupled portion 223 from the outside, and a cylindrical-coupled portion 261c having a coupling jaw 261d formed in a strip shape to be seated and coupled to the coupling groove 224 on an inner wall thereof. Pumping dispenser for liquid containers, characterized in that the provided. The method of claim 1,
An upper portion of the cylinder body 220;
A guide portion 271 for inserting the upper portion of the cylinder body 220 to guide the vertical movement of the piston unit 230 and an outward flange form the upper portion of the guide portion 271 and the coil spring Pumping dispenser for a liquid container, characterized in that the lower end of the 240 is a bush 270 made of a spring support portion 272 is supported.

Images