JP4491593B2 - Liquid storage device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid storage device for maintaining the quality of a liquid stored in a container such as a bottle or a PET bottle when the liquid remains in the container after the container is opened and used for a beverage or the like. It is.
[0002]
[Prior art]
Generally, wine is stored in a container such as a bottle and sealed with a stopper or the like. When a consumer drinks wine, this container is opened, but when wine remains in the container, it is stoppered again and the container is stored in a refrigerator or the like. However, since the wine is oxidized by the air flowing into the container after opening and the flavor of the wine is impaired, there is a problem that it is difficult to store the wine remaining in the container after opening for a long period of time.
[0003]
As a liquid storage device that solves the above-mentioned problems, it has a fluid passage that communicates with the inside and outside of the container, and a check valve that regulates the flow of air in the direction of the container through the fluid passage, and contains wine. There is known a pressure reducing plug that can be detachably installed in an opening of a container to be installed, and a manual pump that is connected to the pressure reducing stopper in an airtight state and sucks air inside the container.
[0004]
According to this liquid storage device, when wine remains in the container, the decompression stopper is installed in the opening of the container, the manual pump is connected to the decompression stopper, and the air inside the container is discharged, Can be prevented from being oxidized.
[0005]
[Problems to be solved by the invention]
However, in the liquid storage device, since the air in the container is manually sucked, this work becomes complicated and the degree of vacuum in the container varies.
[0006]
Further, when storing carbonated beverages such as cola beverages and sparkling wine, it is necessary to pressurize the inside of the container with carbon dioxide gas so that the carbon dioxide in the beverage is not released into the atmosphere. However, the liquid storage device has a problem that the inside of the container cannot be pressurized only by reducing the pressure inside the container, and the carbonated beverage cannot be stored.
[0007]
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a liquid storage device that can reliably prevent oxidation of liquid in a container without requiring complicated work. There is. Another object of the present invention is to provide a liquid storage device capable of storing carbonated beverages.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to a first aspect of the present invention, in the liquid storage device for storing a liquid inside a container having an opening, a fluid passage communicating between the inside and the outside of the container, and the container through the fluid passage. A check valve that regulates the flow of fluid in the internal direction, a decompression stopper that can be detachably installed in an opening of a container that contains liquid, and a fluid passage that communicates between the inside and outside of the container; A pressure valve that has a check valve that regulates the flow of fluid toward the outside of the container through the fluid passage, and can be detachably installed in the opening of the container that stores the liquid; A connecting portion having a fluid passage which can be connected to the fluid passage in an airtight state, a decompression means for discharging the air inside the container to the outside of the container via the decompression plug and the fluid passage of the connecting portion, and carbon dioxide gas Fluid passage for the pressure stopper and connection And a pressing means for feeding in the container via. As a result, when a non-foamable liquid remains inside the container, a decompression plug is provided at the opening of the container, and a connecting portion is connected to the decompression stopper, and air inside the container is sucked by the decompression means. If carbonated water such as carbonated beverages remains inside the container, a pressure stopper is provided at the opening of the container, and a connecting part is connected to the pressure stopper and the container is filled with carbon dioxide gas by the pressurizing means. To do.
[0009]
Further, in claim 2, in the liquid storage device according to claim 1, the decompression means is a pump that sucks air inside the container, and the pressurization means is a gas cylinder that fills the container with carbon dioxide gas, A three-way valve is provided that allows either the pump or the gas cylinder to communicate with the connection portion. Thus, in addition to the operation of the first aspect, when a non-foamable liquid remains in the container, the three-way valve is switched to the pump side, and the air in the container is sucked by the pump. When carbonated water remains, the three-way valve is switched to the gas cylinder side, and carbon dioxide gas flows into the container by the pressure of the carbon dioxide gas stored in the gas cylinder.
[0010]
According to a third aspect of the present invention, in the liquid storage device according to the second aspect of the present invention, when air is sucked from the inside of the container, a timer that operates the pump for a predetermined time and a carbon dioxide gas is filled in the container. And a timer for switching the three-way valve so that the connecting portion and the gas cylinder communicate with each other for a predetermined time. Thus, in addition to the operation of the second aspect, since the pump is operated for a predetermined time by the timer, the degree of vacuum in the container does not vary every time the air in the container is inhaled. Further, the three-way valve is switched for a predetermined time by the timer and the container is filled with carbon dioxide gas by the pressure of carbon dioxide gas, so that the pressure in the container does not vary every time the container is filled with carbon dioxide gas. .
[0011]
According to a fourth aspect of the present invention, in the liquid storage apparatus according to any one of the first to third aspects, the container base on which the container having an opening is placed on the upper part, and the container base can be moved toward the upper connecting portion. And a urging means for urging the container base toward the connecting portion. Accordingly, in addition to the operation of any one of claims 1 to 3, when the container base is moved downward and the container provided with the decompression stopper or the pressure stopper is placed on the container base, the biasing means is attached. The container rises together with the container table by the force, and the decompression stopper or the pressure stopper is connected to the connecting portion.
[0012]
Further, in Claim 5, in the liquid storage device according to any one of Claims 1 to 4, the connection part side of the decompression stopper or the pressure stopper and the opening part side of the container are formed in common, The decompression stopper and the pressurization stopper are combined. Thereby, in addition to the effect | action of any one of Claims 1 thru | or 4, it is not necessary to provide a pressure reducing stopper and a pressure stopper separately.
[0013]
According to a sixth aspect of the present invention, in the liquid storage apparatus according to any one of the first to fifth aspects, a refrigerator for cooling the container is provided. Thereby, in addition to the effect | action of any one of Claims 1 thru | or 5, the container in which the air of the inside was suck | inhaled, and the container with which the inside was filled with the carbon dioxide gas are cooled in a refrigerator.
[0014]
According to a seventh aspect of the present invention, in the liquid storage apparatus according to the sixth aspect, the refrigerator is a wine refrigerator that controls humidity and temperature. Thereby, even when the liquid inside the container is susceptible to the influence of ambient humidity and temperature, such as wine contained in a bottle sealed with cork, the liquid can be stored in a good state.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 to FIG. 9 show an embodiment of the liquid storage device of the present invention. FIG. 1 is an external perspective view of the liquid storage device body, FIG. 2 is a schematic explanatory view of the liquid storage device, and FIG. FIG. 4 is a perspective view of a pressure stopper, FIG. 5 is a perspective view of a pressure stopper, FIG. 6 is a perspective view of a bottle and a plastic bottle, FIG. 7 is an explanatory view when decompressing the inside of the bottle, and FIG. FIG. 9 is a perspective view of a decompression stopper that also serves as a pressure stopper. In each figure, the X direction is the left-right direction, the Y direction is the front-rear direction, and the Z direction is the up-down direction.
[0016]
As shown in FIGS. 1 and 2, the liquid storage device includes a liquid storage device body 1, a decompression stopper 2 provided at an opening of a bottle A that stores non-foaming wine, and a PET bottle that stores a cola beverage. The pressure stopper 3 provided at the opening of B, the vacuum pump 4 provided inside the liquid storage device main body 1, the carbon dioxide gas cylinder 5 provided outside the liquid storage device 1, and the liquid storage device main body 1 are provided below. And a refrigerator 6.
[0017]
The liquid storage device main body 1 includes a rear cover 10 that is formed in a substantially semi-cylindrical shape that is inclined rearward downward and has a front opening, and a rear cover that is formed in a box shape having an upper surface, a front surface, and a rear surface. 10 is connected to the upper part of the front opening of the main body 11, and the front cover 12 is formed to have a smaller plane cross section toward the front, and the upper surfaces of the rear cover 10, the main body 11 and the front cover 12 are closed. A top cover 13, a rail cover 15 that is formed in a U-shaped cross section, has both ends positioned on the front side, closes the front cover 12 mounting portion below the front opening of the main body 11, and has a moving mechanism 14 extending in the vertical direction on the front surface; , A container base 16 supported by the moving mechanism 14 so as to be movable in the vertical direction, and a bottom plate 17 provided horizontally at the lower front of the main body 11. The has.
[0018]
On the lower surface of the front cover 12, a connecting portion 18 that is connected to the decompression stopper 2 or the pressure stopper 3 is provided. The connecting portion 18 is formed in a conical shape that decreases downward, and has a fluid passage 19 that communicates the decompression plug 2 or the pressurization plug 3 with the vacuum pump 4 and the gas cylinder 5 side.
[0019]
As shown in FIG. 3, the moving mechanism 14 includes a pair of rails 14a and 14b that extend vertically and that are opposed to each other, a slider 14c interposed between the rails 14a and 14b, and a large number of balls 14d. . The left and right ends of the rails 14a and 14b and the left and right ends of the slider 14c are curved so as to face each other, and balls 14d are interposed at the facing portions. One rail 14a is fixed to a rail cover 15, and a container base 16 is fixed to the lower end of the other rail 14b. Further, one end of a spiral spring is connected to the upper portion of the rail 14b, and the rail 14b and the container base 16 are biased upward by the biasing force of the spiral spring.
[0020]
In addition, a three-way valve 20 is connected to the connection portion 18, the vacuum pump 4, and the gas cylinder 5 via fluid lines 21 inside the liquid storage device main body 1. The three-way valve 20 is configured to switch a port so that either the connection portion 18 side communicates with either the vacuum pump 4 side or the gas cylinder 5 side.
[0021]
The liquid storage device main body 1 includes a decompression switch 22 and a pressurization switch 23 that are provided on the front cover 12 so as to be operable from the outside of the device, and a decompression timer 24 connected to the vacuum pump 4, and three-way And a pressurizing timer 25 connected to the valve 20. When the pressure reducing switch 22 is turned on, the vacuum pump 4 is operated for the set time stored in the pressure reducing timer 24. When the pressure switch 23 is turned on, the port of the three-way valve 20 is set for the set time stored in the pressure timer 25. Is switched to the gas cylinder 5 side. Here, the three-way valve 20 normally communicates the connecting portion 18 side with the vacuum pump 4 side.
[0022]
The decompression plug 2 is made of an elastic body such as rubber, and as shown in FIG. 4, the outer diameter shape of the lower part 2 a, the middle part 2 b, and the upper part 2 c is different. The lower part 2a of the decompression stopper 2 is formed in a cylindrical shape, and the outer diameter dimension thereof is substantially the same as the inner diameter of the opening of the bottle A. Further, the lower portion 2a is provided with two convex airtight holding portions 2d formed on the outer periphery thereof, and the airtightness of the bottle A is more reliably maintained by the respective airtight holding portions 2d. The outer diameter of the middle part 2b of the decompression plug 2 is formed in a cylindrical shape that gradually expands from below to above, the outer peripheral surface on the lower end side is continuous with the lower part 2a, and the outer peripheral surface on the upper end side is the outer diameter dimension. The upper portion 2c having a large height is connected to the step portion 2e. The upper portion 2c is formed in a cylindrical shape, and a large number of protrusions 2f extending in the vertical direction are provided on the outer peripheral surface thereof, so that the work for attaching and detaching the decompression plug 2 can be easily performed. Inside the decompression plug 2, a fluid passage 2g extending in the vertical direction communicating with the inside and the outside of the bottle A is provided, and a valve member 2h movable in the vertical direction is disposed in the fluid passage 2g. The valve member 2h regulates the flow of fluid from the outside to the inside of the bottle A, and the valve member 2h constitutes a so-called check valve.
[0023]
The pressure stopper 3 has an inner portion that is in contact with the plastic bottle B made of an elastic body such as rubber, and an outer portion made of resin or the like. As shown in FIG. 5, the pressure stopper 3 is formed in a cylindrical shape, and a plurality of protrusions 3 a extending in the vertical direction are provided on the outer peripheral surface, so that the pressure stopper 3 can be easily attached and detached. Yes. Further, a thread 3b formed so as to be screwed with a threaded portion of the opening of the plastic bottle B is provided on the inner peripheral surface of the lower portion of the pressurizing stopper 3. Inside the pressurization stopper 3, a fluid passage 3c extending in the vertical direction communicating with the inside and outside of the plastic bottle B is provided, and a valve member 3d movable in the vertical direction is disposed in the fluid passage 3c. The fluid flow from the inside to the outside of the plastic bottle B is restricted, and the valve member 3d constitutes a so-called check valve.
[0024]
The refrigerator 6 has a general-purpose refrigerator 6a for storing the opened container, and a wine refrigerator 6b for storing a bottle A containing wine and sealed by cork. The wine cooler 6b is configured to control the humidity and temperature in the cabinet to values suitable for storing wine.
[0025]
In the liquid storage device configured as described above, the non-foamable wine remaining in the bottle A and the cola beverage remaining in the plastic bottle B can be stored. When the bottle A stored in the wine cooler 6b is opened and the wine remains in the bottle A, the decompression plug 2 is installed at the opening of the bottle A as shown in FIG. Thereafter, the container table 16 is moved downward, and the bottle A is placed on the container table 16. Since the container base 16 is urged upward, the container base 16 rises together with the bottle A and the decompression stopper 2 is connected to the connecting portion 18 as shown in FIG. Here, when the pressure reducing switch 22 is turned ON, the vacuum pump 4 is operated and the air inside the bottle A is sucked. At this time, since the vacuum pump 4 is operated for a preset time by the decompression timer 24, the inside of the bottle A is decompressed to a substantially constant pressure regardless of the volume of air in the bottle A and the like. After the vacuum pump 4 is stopped, as shown in FIG. 8, the bottle A is stored in the general-purpose refrigerator 6a.
[0026]
When the cola beverage remains in the plastic bottle B, the pressure stopper 3 is screwed into the opening of the plastic bottle B as shown in FIG. Thereafter, the container table 16 is moved downward similarly to the case of the bottle A, and the plastic bottle B is placed on the container table 16. The container base 16 rises together with the plastic bottle B, and the pressurizing stopper 3 is connected to the connecting portion 18. Here, when the pressurization switch 23 is turned ON, the three-way valve 20 is switched to the gas cylinder 5 side, and carbon dioxide gas flows into the PET bottle B from the gas cylinder 5. At this time, since the three-way valve 20 is switched for a preset time by the pressurization timer 25, the inside of the PET bottle B is pressurized to a pressure substantially equal to the pressure in the gas cylinder 5 regardless of the volume of the PET bottle B or the like. . After the three-way valve 20 is switched to the vacuum pump 4 side, as shown in FIG. 8, the plastic bottle B is stored in the general-purpose refrigerator 6a.
[0027]
As described above, according to the liquid storage device of the present embodiment, since the air in the bottle A is sucked by the vacuum pump 4, the wine in the bottle A is reliably prevented from being oxidized and the wine flavor is impaired. The wine in the bottle A can be stored for a long period of time. Further, a complicated operation is not required as in the case of using a conventional manual pump. Furthermore, since the inside of the PET bottle B is pressurized with the carbon dioxide gas in the gas cylinder 5, the carbon dioxide gas in the beverage remaining in the PET bottle B is not released into the atmosphere, and the flavor of the cola beverage is impaired. Can be stored for a long period of time.
[0028]
As a result, conventionally, when a small amount of wine (for example, in glass units) is sold at a restaurant or the like, if the wine remaining in the bottle cannot be consumed before its flavor deteriorates, the wine has to be disposed of. However, since the wine can be stored for a long period of time without impairing the flavor as described above, it is not necessary to dispose of the wine and the selling cost can be reduced. In addition, since there is a risk of disposing of wine, conventionally, wines sold in small quantities at restaurants are limited to small varieties, but many kinds of wine can be sold in small quantities. In addition, a small amount of sparkling wine can be sold.
[0029]
Further, since the air inside the bottle A is sucked by the vacuum pump 4, the inside of the bottle A can be surely decompressed. Further, since the carbon dioxide gas flows into the plastic bottle B by the pressure of the carbon dioxide gas stored in the gas cylinder 5, the inside of the container can be reliably pressurized with the carbon dioxide gas with a simple configuration.
[0030]
Further, since the vacuum pump 4 is operated for a preset time by the pressure reducing timer 24, the inside of the bottle A is always reduced to a substantially constant pressure, and the degree of vacuum inside the bottle A does not vary. Furthermore, since the pressure in the plastic bottle B does not vary every time carbon dioxide is filled in the plastic bottle B, the liquid in the container can be stored under almost the same conditions every time. It is advantageous.
[0031]
Further, since the container base 16 is biased upward, the decompression stopper 2 or the pressure stopper 3 and the connecting portion 18 can be securely connected while maintaining airtightness. Gas does not flow in or out from between the connecting portions 18.
[0032]
In addition, since the refrigerator 6 is provided below the liquid storage device main body 1, the container whose inside is depressurized or pressurized can be cooled, and wine or cola drink can be cooled and stored. Very advantageous. Furthermore, since the refrigerator 6 has the wine refrigerator 6b, it is accommodated in the bottle A sealed with cork, and the wine which is easily influenced by the surrounding humidity and temperature can be stored in a good state. .
[0033]
In addition, in the said embodiment, although what used the decompression stopper 2 and the pressurization stopper 3 separately was shown, as shown in FIG. A screw thread 2 i that can be screwed into the opening may be provided, and the decompression stopper 2 may also be used as the pressurization stopper 3. In this case, when pressurizing the inside of the plastic bottle B, the decompression stopper 2 is installed in the plastic bottle B as a pressure stopper using the thread 2i. Thereby, manufacturing cost can be reduced.
[0034]
Moreover, in the said embodiment, although the screw thread 3 was provided in the pressurization stopper 3, and the screw part of the opening part of the plastic bottle B was screwed together, the screw part was provided in the opening part like a bottle, for example. If not, the pressure stopper 3 may be fixed by a fitting or the like that engages with the convex portion of the opening after the pressure stopper 3 is provided in the opening. Thereby, the carbonated drinks accommodated in bottles, such as sparkling wine, can be preserve | saved reliably.
[0035]
Moreover, although the thing which preserve | saves the non-foamable wine in the bottle A was shown in the said embodiment, what was accommodated in containers other than a bottle may be used. In addition, oxidation of beverages other than wine can be prevented, and oxidation of skin lotions, chemicals, and the like can also be prevented.
[0036]
Moreover, although the thing which preserve | saves the cola drink in the PET bottle B was shown in the said embodiment, preservation | save is also possible in carbonated drinks other than a cola drink, carbonated water for chemical tests, etc.
[0037]
Moreover, although what provided the refrigerator 6 was shown in the said embodiment, it is good also as a structure which does not provide the refrigerator 6. FIG.
[0038]
In the embodiment, when the air in the bottle A is discharged to the outside, the pressure in the bottle A is controlled based on the time stored in the decompression timer 24. A pressure sensor that detects the pressure of the gas may be provided, and the pressure in the bottle A may be controlled based on the detected pressure. Further, when the carbon dioxide gas is pressurized in the plastic bottle B, the pressure in the plastic bottle B is not controlled based on the time stored in the pressurization timer 25, but the plastic bottle B is based on the detected pressure. The internal pressure may be controlled.
[0039]
In the above embodiment, the depressurization timer 24 and the pressurization timer 25 are separately provided. However, the operation time of the vacuum pump 4 and the time for switching the three-way valve 20 to the gas cylinder 5 side are the same timer. Even if it controls by, it can obtain the effect similar to the said embodiment.
[0040]
Moreover, in the said embodiment, although the connection part 18 was fixed and provided in the liquid storage apparatus main body 1, the connection part 18 and the three-way valve 20 were connected with the flexible tube, and the connection part 18 was shown. May be detachably provided on the liquid storage device main body 1 via a bowl-shaped fitting or the like. In this case, when storing the liquid in the container that cannot be placed on the container table 16 such as a barrel, the connecting part 18 is separated from the liquid storage device body 1 and the connecting part 18 is connected to the opening of the container. Can do.
[0041]
In the above-described embodiment, the carbon dioxide gas is filled into the PET bottle B by the pressure of the carbon dioxide gas itself in the gas cylinder 5, but a pump or the like may be provided to fill the carbon dioxide gas. .
[0042]
【The invention's effect】
As described above, according to the liquid storage device of the first aspect, when a non-foamable liquid remains in the container, a decompression stopper is provided at the opening of the container, and the connection part is connected to the decompression stopper. Since the air inside the container is sucked by the decompression means, the liquid in the container can be reliably prevented from being oxidized and stored for a long period of time without deteriorating the quality of the liquid. Also, if carbonated water such as cola drinks remains inside the container, provide a pressure stopper at the opening of the container, connect the connection part to the pressure stopper, and fill the container with carbon dioxide gas by the pressurizing means Since it did it, it can preserve | save for a long period, without impairing the quality of the carbonated drink which remained in the container.
[0043]
Further, according to the liquid storage device of claim 2, in addition to the effect of claim 1, when a non-foamable liquid remains inside the container, the air inside the container is sucked by the pump. The inside of the container can be surely decompressed. Also, when carbonated water remains, the three-way valve is switched to the gas cylinder side, and the carbon dioxide gas flows into the container by the pressure of the carbon dioxide gas stored in the gas cylinder. The inside of the container can be reliably pressurized.
[0044]
According to the liquid storage device of claim 3, in addition to the effect of claim 2, the degree of vacuum in the container does not vary every time the air in the container is inhaled. Since the pressure in the container does not vary every time the gas is filled, the liquid in the container can be stored under almost the same conditions each time, which is extremely advantageous in practical use.
[0045]
According to the liquid storage device of the fourth aspect, in addition to the effect of any one of the first to third aspects, the container rises together with the container table by the urging force of the urging means, and the decompression stopper or the pressure stopper And the connecting portion are securely connected to each other, so that no gas flows in or out from between the decompression stopper or the pressurizing stopper and the connecting portion.
[0046]
In addition, according to the liquid storage device of the fifth aspect, in addition to the effect of any one of the first to fourth aspects, the decompression stopper and the pressure stopper are used together, so that the manufacturing cost can be reduced. it can.
[0047]
According to the liquid storage device of the sixth aspect, in addition to the effect of any one of the first to fifth aspects, the container in which the air inside is sucked and the container in which the inside is filled with carbon dioxide gas is a refrigerator. The liquid remaining in the container can be cooled and stored, which is extremely advantageous in practical use.
[0048]
Further, according to the liquid storage device of the seventh aspect, in addition to the effect of the sixth aspect, the liquid inside the container is influenced by the surrounding humidity and temperature, like wine contained in a bottle sealed with cork. Even in the case where it is easy, the liquid can be stored in a good state, which is further advantageous in practical use.
[Brief description of the drawings]
1 is an external perspective view of a liquid storage device according to an embodiment of the present invention. FIG. 2 is a schematic explanatory view of the liquid storage device. FIG. 3 is a plan sectional view of a moving mechanism. 5 is a perspective view of a pressure stopper. FIG. 6 is a perspective view of a bottle and a plastic bottle. FIG. 7 is an explanatory view when decompressing the inside of the bottle. FIG. 8 is a side sectional view of a liquid storage device. Perspective view of decompression stopper that also serves as a stopper [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Liquid storage apparatus main body, 2 ... Pressure reducing plug, 2g ... Fluid passage, 2h ... Valve member, 3 ... Pressurization stopper, 3c ... Fluid passage, 3d ... Valve member, 4 ... Vacuum pump, 5 ... Gas cylinder, 6 ... Cooling Storage chamber, 6b ... Wine cooler, 14 ... Movement mechanism, 16 ... Container stand, 18 ... Connection section, 19 ... Fluid passage, 20 ... Three-way valve, 24 ... Depressurization timer, 25 ... Pressurization timer, A ... Bottle, B …PET bottles.

Claims (7)

In a liquid storage device for storing a liquid inside a container having an opening,
It has a fluid passage communicating between the inside and outside of the container, and a check valve that regulates the flow of fluid toward the inside of the container through the fluid passage, and can be detachably installed at the opening of the container containing the liquid A vacuum stopper,
It has a fluid passage communicating between the inside and outside of the container, and a check valve that regulates the flow of fluid toward the outside of the container through the fluid passage, and can be detachably installed at the opening of the container containing the liquid A pressure stopper,
A connecting portion having a fluid passage which can be connected to the fluid passage of the decompression stopper or the pressure stopper while maintaining airtightness;
Pressure reducing means for discharging the air inside the container to the outside of the container through the pressure reducing stopper and the fluid passage of the connecting portion;
A liquid storage apparatus comprising: a pressurizing unit that feeds carbon dioxide gas into the container through the pressurization stopper and a fluid passage of a connection portion. The pressure reducing means is a pump for sucking air inside the container;
The pressurizing means is a gas cylinder for filling carbon dioxide gas inside the container,
The liquid storage device according to claim 1, further comprising a three-way valve that communicates either the pump or the gas cylinder with the connection portion. A timer for operating the pump for a predetermined time when inhaling air from the inside of the container;
The liquid storage device according to claim 2, further comprising a timer that switches the three-way valve so that the connection portion and the gas cylinder communicate with each other for a predetermined time when the container is filled with carbon dioxide gas. A container base for placing a container having an opening on the top;
A moving mechanism capable of moving a container base toward the connection portion above;
The liquid storage device according to claim 1, further comprising an urging unit that urges the container base toward the connection portion. The connection part side of the said decompression stopper or the said pressurization stopper, and the opening part side of the said container are formed in common, The said decompression stopper and the said pressurization stopper are combined, The any one of Claim 1 thru | or 4 characterized by the above-mentioned. A liquid storage device according to claim 1. The liquid storage device according to claim 1, further comprising a refrigerator that cools the container. The liquid storage device according to claim 6, wherein the refrigerator is a wine refrigerator that controls humidity and temperature in the refrigerator.

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