KR102469822B1 - Gas injection apparatus - Google Patents

Abstract

The gas injection device according to an embodiment of the present invention may provide a closed structure to prevent gas discharged from the capsule from leaking. To this end, the gas injection device includes a capsule in which gas is stored; a cap having a fixing rib extending downward to accommodate the capsule; a bridge coupled to the cap by rotation and forming a flow space into which the capsule is inserted; an airtight member forming an airtight hole through which the capsule penetrates at the center and guiding a coupling between the fixing rib and the bridge; And detachably coupled to the bridge may include a limiting pin for limiting the rotation of the cap. In addition, when the cap is rotated by removing the limiting pin, the airtight member may be in close contact with the upper surface of the bridge and the lower surface of the fixing rib.

Description

Gas injection apparatus {Gas injection apparatus}

The present invention relates to a gas injection device. More specifically, the present invention relates to a gas injection device capable of injecting a gas such as oxygen into a container containing a beverage.

Recently, when drinking water rich in dissolved oxygen, the blood oxygen concentration is improved, and the effect of activating the metabolism of the human body, such as detoxifying the liver and promoting the secretion of digestive enzymes in the human body, has been proven. A variety of gas injection devices have been developed.

In general, in order to produce a beverage rich in dissolved oxygen, a method of introducing oxygen-rich gas into a beverage (liquid) or a method of dissolving by filling a beverage container with water and oxygen and staying for a long time in a pressurized state is used.

For example, the gas injection device may dissolve oxygen in the beverage by supplying oxygen to beverages such as water, beer, and soju using a highly concentrated oxygen capsule.

Such a gas injection device needs to be portable and miniaturized so that users can easily use it in daily life. As a prior art document related to this, there is KR10-2012-0041401A (hereinafter, Prior Art Document 1).

However, the gas injection device disclosed in Prior Document 1 has a problem in that after the oxygen gas compressed at high pressure in the oxygen capsule is ejected into the container, beverages and the like flow backward.

As prior art documents for solving this related problem, there are KR10-1622949 B1 (hereinafter, Prior Art Document 2) and KR10-1832367 B1 (hereinafter, Prior Art Document 3).

In the prior art document 2 and the prior art document 3, a backflow prevention member for preventing the backflow of beverage is provided in the gas injection device. According to this, it is possible to prevent the pipe (or pin) provided with a metal material to rupture the oxygen capsule from being corroded by the reverse flowed beverage.

However, the above-mentioned prior literature has the following problems.

First, a tube (rupture rod or opening pin) disclosed in prior literature is inserted while rupturing the bottom surface of the capsule, and gas is discharged into the beverage through an internal flow path formed by the tube. At this time, gas may leak into the fine ruptured space between the capsule and the tube. In addition, the leaked gas has a problem of leaking into the microspace between components mutually coupled by screw threads in the prior literature.

Second, the gas discharged into the beverage container may leak to the outside through the microscopic space between the cap coupled to the beverage container. According to this, there is a problem in that the gas discharged from the capsule is dissolved in the liquid and the product's original function of increasing the dissolved amount may be lost. Therefore, it is necessary to prevent gas leakage even in a configuration coupled to the beverage container.

Third, the tube provided to discharge the gas of the capsule to the beverage container is formed of a metal material such as aluminum. Therefore, there is a problem in that powder may be generated from the tube due to damage caused during capsule rupture or gas leakage.

Fourth, the pipe or the like ruptures and penetrates one surface of the capsule to introduce the gas of the capsule into the pipe and guide it to the beverage container. According to this, it may cause a problem that the generated powder is mixed with the beverage. That is, a fatal problem in which the beverage product is not suitable for human consumption may occur.

Fifth, the above-described gas inflow method of the tube has a problem in that a separate backflow prevention member must be provided to prevent the beverage from flowing backward into the tube. According to this, the structure of the gas injection device is complicated, and there is a limit to miniaturization of the device, and a configuration in contact with a beverage may occur, resulting in hygiene problems such as corrosion, and there is a problem of increasing the manufacturing cost of the product.

KR10-2012-0041401 A, portable oxygen water generator KR 10-1622949 B1, compressed gas feeder KR 10-1832367 B1, of beverage container oxygen injection device

An object of the present invention is to provide a gas injection device capable of solving the above problems.

In particular, an object of the present invention is to provide a gas injection device that can structurally solve the problem of leakage of gas discharged from the capsule to the outside.

In addition, an object of the present invention is to provide a gas injection device capable of maintaining a high amount of dissolved oxygen in a beverage even after a long time elapses after gas is discharged from the capsule.

In addition, an object of the present invention is to provide a gas injection device in which external leakage of gas due to capsule rupture is prevented and the discharged gas can be dissolved in a beverage without loss.

Another object of the present invention is to provide a hygienically safe gas injection device.

In addition, an object of the present invention is to provide a gas injection device capable of minimizing contact with a beverage in order to prevent corrosion.

In addition, an object of the present invention is to provide a gas injection device that safely maintains a capsule from discharging gas during manufacturing and transportation.

In addition, an object of the present invention is to provide a gas injection device that is miniaturized to fit the storage standards of existing beverage containers.

In order to achieve the above object, the gas injection device according to an embodiment of the present invention may provide a sealing structure to prevent gas discharged from the capsule from leaking.

In addition, the gas injection device can provide a structure in which the user can selectively discharge the gas of the capsule into the beverage container when using the product, and at the same time, the leak of the discharged gas is prevented by the airtight structure.

In addition, the gas injection device may be provided so that the gas discharged from the capsule flows within a double sealing structure.

To this end, the gas injection device includes a capsule in which gas is stored; a cap having a fixing rib extending downward to accommodate the capsule; a bridge coupled to the cap by rotation and forming a flow space into which the capsule is inserted; and an airtight member forming an airtight hole at the center through which the capsule passes, and guiding a coupling between the fixing rib and the bridge, wherein the airtight member includes an airtight connection between an upper surface of the bridge and the fixed rib by the rotation. The lower surface may be coupled up and down.

In addition, the airtight member may be formed to enable elastic deformation.

In addition, the airtight member may be formed of silicon.

In addition, the bridge may include a main body having an inner circumferential surface defining the flow space; an upper cover extending upward from the upper surface of the main body and rotationally engaged with the cap; and a stepped portion located inside the upper cover and provided with a plurality of airtight grooves recessed into the upper surface of the main body so that the airtight member is inserted.

In addition, the main body may include an insertion hole that is recessed upward from the bottom surface and extends along the circumferential direction.

In addition, the insertion hole, the upper end of the beverage container can be coupled.

In addition, the main body may further include a base defined as a bottom surface located inside the insertion port.

In addition, a discharge hole communicating with the flow space may be formed in the base.

In addition, the main body may further include a pressure rod extending upward from an upper surface of the base and capable of striking a lower surface of the capsule.

In addition, the airtight member may include a plurality of lower airtight protrusions protruding downward from the bottom surface so as to be inserted into the plurality of airtight grooves.

In addition, the plurality of airtight grooves, the first airtight groove formed along the upper end of the inner circumferential surface; And it may include a second hermetic groove located spaced apart from the first hermetic groove in the radial direction.

In addition, a plurality of rib grooves that are recessed upward may be formed on a bottom surface of the fixing rib.

In addition, the airtight member may include a plurality of upper airtight protrusions protruding upward from the upper surface so as to be inserted into the plurality of rib grooves.

In addition, it may further include a limiting pin detachably coupled to the bridge to limit rotation of the cap.

In addition, the limiting pin, extending to surround the outer circumferential surface of the upper cover, a fitting portion having an opening that opens in one direction; a limiting protrusion protruding from an upper surface of the fitting portion and supporting a lower end of the cap; And it may include a gripper extending in the vertical direction at one side end.

In addition, it may further include a limiting pin detachably coupled to the bridge to limit rotation of the cap.

In addition, the pressure bar is characterized in that it is formed of plastic.

Also, the pressure rod may be formed as an integral injection molding of the bridge.

According to the present invention, since it is possible to prevent external leakage of gas discharged from the capsule, it is possible to maintain a high dissolved amount of gas in the beverage for a long time. As a result, the defect rate of the product can be reduced.

In addition, since the original function of a beverage product in which oxygen or carbon is dissolved can be stably provided, reliability of the product can be improved.

In addition, since the present invention provides a structure for guiding gas into a beverage container by discharging gas into a microspace due to rupture of the capsule, the discharged gas can be provided and dissolved in a beverage container without loss or leakage.

In addition, there is an advantage of being hygienically safe from metal powder by the plastic pressure rod.

In addition, since the beverage container is inserted into the lower part of the bridge, the size of the gas injection device can be minimized. Therefore, there is an advantage of minimizing contact between the beverage in the beverage container and the configuration of the gas injection device. According to this, there is an advantage that can prevent corrosion by beverages.

In addition, since the bridge coupled to the beverage container forms a close contact surface that is bent a number of times to prevent gas dissolved in the beverage container from leaking out through the microspace, the shielding and airtightness of the beverage container can be improved.

In addition, there is an advantage in that the capsule and the pressure rod can be stably maintained in a non-contact state even during manufacturing and transportation processes by the limiting pin.

In addition, the upper and lower configurations of the gas injection device are formed to be symmetrical with each other, thereby minimizing the size, thereby having the advantage of satisfying the standard for storing existing beverage containers. In addition, there is an advantage of improving the sense of unity with the exterior of the gas injection device and providing a sense of aesthetics to the user.

In addition, since the limiting pin provided to be intuitively and easily removable, the cap groove and the main body groove that can be easily gripped by the user's fingers are formed on the outer surface, the user can easily use the gas injection device.

1 is a perspective view showing a gas injection device according to an embodiment of the present invention
Figure 2 is an exploded perspective view showing the configuration of a gas injection device according to an embodiment of the present invention
Figure 3 is a cross-sectional view showing a longitudinal section of the gas injection device along line II' of FIG.
Figure 4 is a cross-sectional view showing a longitudinal section of the bridge along A-A' in FIG.
Figure 5 is an upper perspective view showing an airtight member according to an embodiment of the present invention
Figure 6 is a downward perspective view showing an airtight member according to an embodiment of the present invention
7 is an exemplary view showing a gas injection process of a gas injection device according to an embodiment of the present invention

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment of the present invention, the detailed description will be omitted.

Also, terms such as first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, that element may be directly connected or connected to the other element, but there may be another element between the elements. It should be understood that may be "connected", "coupled" or "connected".

1 is a perspective view showing a gas injection device according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view showing the configuration of a gas injection device according to an embodiment of the present invention.

1 and 2, the gas injection device 1 according to an embodiment of the present invention includes a capsule 10 in which gas is stored, a cap 20 for fixing the capsule 10, and the capsule 10 A bridge 30 coupled to the cap 20 to be accommodated, an airtight member 40 inserted into the bridge 30 to seal between the cap 20 and the bridge 30, and the bridge 30 ) It may include a limiting pin 50 that is detachably coupled to and restricts the movement of the cap 20.

Meanwhile, the cap 20 may be referred to as an "upper cap" and the bridge 30 may be referred to as a "lower cap".

The capsule 10 may store fluid therein. That is, gas or liquid may be stored in the capsule 10 . For example, oxygen or carbon compressed under high pressure may be stored in the capsule 10 . Here, the capsule 10 in which oxygen is stored may be referred to as an “oxygen capsule”.

The inside of the capsule 10 may have a relatively high pressure by the gas compressed to a high pressure. For example, the pressure of the capsule 10 may be about 100 bar.

According to the high pressure of the capsule 10, the gas of the capsule 10 can be instantaneously discharged when the pressure rod 150 to be described later passes through the capsule 10.

That is, the gas of the capsule 10 can be rapidly discharged through the microspace between the pressure rod 15 and the capsule 10 due to a high pressure difference between the inside and outside of the capsule 10 .

In addition, the capsule 10 may be formed with a relatively thin thickness so that it can be easily ruptured even in a plastic material.

The capsule 10 may be located inside the cap 20 . For example, the capsule 10 may be inserted into the bridge 30 while being inserted and/or inserted into the cap 20 . For example, the capsule 10 may be fixed by the fixing rib 25 of the cap 20 .

Meanwhile, the capsule 10 may be sealed and/or airtight by the fixing rib 25, the airtight member 40, and the stepped portion 320 of the bridge 30. Therefore, the gas discharged from the lower side of the capsule 10 can be discharged from the outside air into a beverage container in a completely closed space.

When the cap 20 is made of a material with high softness, it can be elastically deformed and there is a risk of gas leakage. Accordingly, the cap 20 may be formed of a material having high rigidity. For example, the cap 20 may be formed of an acrylonitrile butadiene styrene copolymer (ABS) or polyethylene terephthalate (PET) material.

The cap 20 may be formed to have an appearance corresponding to the main body 100 of the bridge 30 .

The cap 20 may include a cap case 21 forming an exterior. For example, the cap case 21 may be formed to have the same outer diameter as that of the main body 100 of the bridge 30 .

In addition, the cap case 21 may be formed to be symmetrical with the exterior of the main body 100 . Therefore, the cap 20 and the main body 100 can be visually formed to achieve a sense of unity.

The cap case 21 may form an inner space. For example, the cap case 21 may be formed in a cylindrical shape with an open lower surface.

A plurality of recessed surfaces 21a may be formed on an outer circumferential surface of the cap case 21 along a circumferential direction.

The concave surface 21a may be formed for the convenience of a user for rotating the cap 20 . For example, the user can relatively easily rotate the cap 20 by gripping the concave surface 21a of the cap case 21 with a finger.

A recessed groove 101 corresponding to the recessed surface 21a of the cap case 21 may be formed on an outer circumferential surface of the bridge 30 . In detail, the recessed groove 101 may be formed in plurality along the circumferential direction on the outer circumferential surface of the bridge 30 . For example, the recessed groove 101 is formed in the main body 100 of the bridge 30 and may be symmetrical with the recessed surface of the cap case 21 .

According to this, the user can easily rotate the cap 20 by gripping the recessed groove 101 with one hand and gripping the recessed surface 21a with the other hand.

The cap case 21 may be combined with the upper cover 200 of the bridge 30 . At this time, the capsule 10 may be double-sealed by the cap case 21 and the upper cover 200 . A detailed description related to this will be described later.

The bridge 30 may include a main body 100 and an upper cover 200 extending from the main body 100 .

The upper cover 200 may extend upward from the upper surface 105 of the main body 100 . In detail, the upper cover 200 may extend upward from the upper surface 105 to have a smaller diameter than the upper surface 105 .

In addition, the upper cover 200 and the body 100 may be formed to have the same central axis as the cap 20 . In detail, the upper cover 200, the main body 100, the O-ring 35, the airtight member 40, the fixing rib 25, and the capsule 10 may have the same central axis.

The upper cover 200 may be combined with the cap 20 .

The upper cover 200 may be formed in a cylindrical shape with an open upper surface. For example, the upper cover 200 may be formed in a ring shape.

The upper cover 200 may form an inner space 250 that opens upward. In the inner space, the capsule 10, the fixing rib 25 of the cap 20 for fixing the capsule 10, and the airtight member 40 may be positioned. here. The inner space of the upper cover 200 may be named "installation space 250".

The limiting pin 50 may be installed on the bridge 30 to limit the movement of the cap 20 coupled to the upper cover 200 . The limiting pin 50 may be detachably coupled to the lower portion of the upper cover 200 .

The limiting pin 50 may be inserted into the outer surface of the upper cover 200 . That is, the limiting pin 50 may be located at the lower end of the outer circumferential surface of the upper cover 200 . For example, the limiting pin 50 may be seated on the upper surface 105 of the main body 100 to support the lower end of the cap 20 .

Accordingly, the cap 20 can be limitedly coupled to the upper cover 200 up to a predetermined height from the upper surface 105 by the support of the limiting pin 50 . That is, when the cap 20 is coupled to the upper cover 200, it comes into contact with the limiting pin 50 and cannot rotate any further.

The position of the limiting pin 50 may be restricted so that the lower surface of the capsule 10 fixed to the cap 20 contacts the upper end of the pressure rod 150 or is located higher than the upper end of the pressure rod 150. .

And, when the limiting pin 50 is removed, the cap 20 can be engaged with the upper cover 200 downward by the height from which the limiting pin 50 is removed. At this time, the capsule 10 ) may discharge the internal gas to the flow space 310 of the main body 100.

The limiting pin 50 may be formed to surround an outer circumferential surface of the upper cover 200 . Further, the limiting pin 50 may form an opening 51a open in one direction. For example, the limiting pin 50 may be formed in a ring shape, tongs shape, or horseshoe shape in which an opening 51a is formed in one direction.

According to this, the user can insert the limiting pin 50 so that the upper cover 200 is pressed into the opening 51a, so that the limiting pin 50 is inserted into the upper cover 200. Thus, the limiting pin 50 can be easily coupled to or separated from the upper cover 200 .

The limiting pin 50 may also be referred to as a "safety fixture".

The limiting pin 50 may be formed to enable elastic deformation. The opening 51a of the limiting pin 50 may be elastically deformed to widen when fitted into the upper cover 200 .

The limiting pin 50 includes a fitting part 51 extending to surround the outer circumferential surface of the upper cover 200, a limiting protrusion 53 supporting the lower end of the cap 20, and a gripping part that can be gripped by the user. (55) may be included.

The fitting part 51 may define a hole that is opened in a vertical direction. Therefore, the fitting part 51 can be stably inserted into the outer surface of the upper cover 200 .

Further, both ends of the fitting part 51 extend to be spaced apart from each other, and the opening 51a of the limiting pin 50 may be defined in the space between the both ends.

The limiting protrusion 53 may be formed to protrude upward from the upper surface of the fitting part 51 .

The limiting protrusion 53 may support the lower end of the cap 20 , that is, the lower end of the cap case 21 . Therefore, when the cap 20 comes into contact with the limiting protrusion 53, it is no longer able to move downward. That is, the limiting protrusion 53 may limit rotation of the cap 20 coupled to the upper cover 200 .

The limiting protrusions 53 may be provided in multiple numbers.

The gripping portion 55 may be formed so that a user can easily grip it. For example, the gripping part 55 may be located on the opposite side of the opening 51a, and may be formed to extend vertically from a side end of the limiting pin 50.

According to this, the user can easily separate the limiting pin 50 from the upper cover 200 by applying force in an outward direction (F, see FIG. 7) while holding the gripping part 55. have. Here, the opening 51a of the limiting pin 50 is elastically deformed when a user's force acts, so that the user can easily remove the limiting pin 50 with little force.

According to the limiting pin 50, it is possible to prevent the capsule 10 from being ruptured and the gas inside the capsule 10 being discharged in the process of manufacturing and distributing the beverage in which the gas injection device 1 is installed.

In addition, the user can selectively open the capsule 10 at a desired time through the limiting pin 50 to dissolve the gas inside the capsule 10 into a beverage. Thus, reliability and safety of the product can be improved.

The main body 100 may be integrally formed with the upper cover 200 . Also, the main body 100 may be located under the upper cover 200 .

The body 100 may form a flow space 310 having a smaller diameter than the installation space 250 of the upper cover 200 . That is, the flow space 310 can be understood as a space extending downward from the installation space 250 inside the installation space 250 .

The flow space 310 may be sealed or airtight from the outside by the airtight member 40 and the cap 20 .

The body 100 may be formed to have a larger outer diameter than the outer diameter of the upper cover 200 . As an example. The main body 100 may be formed in a cylindrical shape.

In addition, the main body 100 may be formed to have a symmetrical appearance with the cap 20 coupled to the upper cover 200 . For example, the height of the main body 100 may be formed to be the same as that of the cap 20 . According to this, aesthetics of the gas injection device 1 can be improved and a sense of unity can be provided.

In general, the top of the beverage container (not shown) containing the beverage is coupled with a lid to prevent leakage of the beverage. Gas injection device 1 according to an embodiment of the present invention can be coupled to the upper end of the beverage container by replacing the lid.

The beverage container may be inserted from the lower side of the main body 100.

An insertion port 130 into which the beverage container is inserted may be formed on the bottom surface of the main body 100.

The insertion hole 130 may be formed by being recessed upward from the bottom surface of the main body 100 . In detail, the insertion hole 130 may be recessed upward along the position of a point having a predetermined radius based on the central axis O of the main body 100 .

Here, the predetermined radius is greater than the radius of the flow space 310 based on the central axis (O). Therefore, when the beverage container is coupled to the insertion hole 130, gas may be discharged into the beverage container through the flow space 310.

The insertion hole 130 may extend in a circumferential direction from the inside of the main body 100 . For example, the insertion hole 130 may form a ring-shaped space opened downward in the main body 100 . That is, the insertion port 130 can be understood as an insertion space for the beverage container formed on the bottom surface of the main body 100.

According to the insertion hole 130, the upper end of the beverage container has the advantage of being sealed and/or airtight by the outer and inner surfaces defining the insertion hole 130.

That is, the conventional gas injection device is coupled along the outer surface of the top of the beverage container and has a problem in that gas leaks into the microspace, but the gas injection device 1 according to the embodiment of the present invention is coupled to the outer surface of the top of the beverage container and There is an advantage in minimizing micro-leakage of gas by integrally combining and closely adhering the inner surfaces.

The main body 100 includes a base 120 defined as a bottom surface located inside the insertion hole 130 and a pressure rod 150 that ruptures the capsule 10 to discharge gas from the capsule 10. can include

The base 120 may form a lower surface defining the flow space 310 .

A discharge hole 160 communicating with the flow space 310 may be formed in the base 120 .

The discharge hole 160 may be formed as an opening that opens the base 120 in a vertical direction.

That is, when the beverage container is coupled to the insertion hole 130, the gas discharged into the flow space 310 may flow into the beverage container through the discharge hole 160.

The discharge hole 160 may be located on the inside of the inner circumferential surface (300, see FIG. 4) of the main body, that is, on the lower surface defining the flow space 310.

The discharge hole 160 may be formed in plurality. For example, at least two discharge holes 160 may be formed.

The discharge hole 160 may guide the gas discharged from the capsule 10 opened by the pressure bar 150 into the beverage container.

The pressing rod 150 may be provided to penetrate the capsule 10 when the capsule 10 moves downward.

The pressure bar 150 may be installed on an upper surface of the base 120 . For example, the pressure rod 150 may be inserted into a pressure rod coupler 125 (refer to FIG. 4 ) formed at the center of the upper surface of the base 120 .

A filter may be located at the bottom of the discharge hole 160 . In one embodiment, the filter may filter out solid powder (or foreign matter) such as dust discharged from the discharge hole 160 .

The filter may have a transmittance that permits gas to pass through but prevents solids such as dust from passing therethrough. For example, the filter may be composed of a HEPA filter, if necessary.

The filter may be made of a material through which gas can pass and may have unidirectional properties. For example, the filter may allow gas to flow from the discharge hole to the beverage container, but block the movement of corpses from the beverage container to the discharge hole.

That is, the conventional gas injection device could not prevent dust from entering the beverage container from the corresponding device, but the gas injection device 1 according to the embodiment of the present invention can block dust from entering the beverage container.

The pressure bar 150 may be located at the center of the flow space 310 . That is, the pressure bar 150 may extend upward along the central axis O of the main body 100 .

Of course, the pressure bar 150 may be integrally formed with the main body 100 . That is, the pressure bar 150 may be detachably attached to the main body 100 or formed integrally with the main body 100 .

For example, the pressure bar 150 may be formed to extend upward from the upper surface of the base 120 . That is, the pressing rod 150 may be formed of an injection molding integrally formed with the main body 100 .

In addition, the pressure rod 150 may extend so that its diameter decreases toward the top. That is, the pressure bar 150 may extend from the upper surface of the base 120 in a conical shape.

The pressure bar 150 may be located inside the support rib 300 . For example, the pressure bar 150 may be located at the center of the support rib 300 . That is, the pressure bar 150 may be positioned on the central axis of the upper cover 200 .

Also, the pressing bar 150 may extend upward along the central axis of the upper cover 200 . That is, the pressure rod 150 may extend from the upper surface 105 of the main body 100 to a smaller diameter toward the upper end. For example, the pressure bar 150 may be formed in a conical shape.

The pressure bar 150 may be formed of a plastic material. In this case, the pressing rod 150 may be formed to have greater strength than the lower surface of the capsule 10 .

On the other hand, since the pressure bar 150 does not have a tube through which gas can flow therein, it is possible to solve the problem of powder generation of the pressure bar formed of a metal material in a conventional gas injection device. That is, it is possible to improve the hygiene of the gas injection device coupled to the beverage container.

The airtight member 40 may be coupled to the bridge 30 . In detail, the cap 20 and the bridge 30 may be vertically coupled to the airtight member 40 .

In addition, the airtight member 40 may be detachably provided upwardly from the bridge 30 .

The airtight member 40 may be seated on an upper end of the main body 100 . Further, the airtight member 40 may be installed so as to be in close contact with the lower surface of the fixing rib 25 and the stepped portion 320 of the body 100 to be described later in the vertical direction.

The airtight member 40 extends to surround the capsule 10 and may be coupled to the bridge 30 and the cap 20 . In detail, the airtight member 40 may form a airtight hole 45 at the center of which the capsule 10 is inserted and/or passed through. For example, the airtight member 40 may be formed in a ring shape.

That is, the capsule 10 inserted into the cap 20 may pass through the airtight hole 45 and be inserted into the internal flow space 310 formed by the bridge 30 . At this time, the capsule 10 penetrating the airtight hole 45 may be in close contact with the inner circumferential surface of the airtight member 40 .

The airtight member 40 may be formed of a material capable of elastic deformation. For example, the airtight member 40 may be formed of silicon.

According to this, the airtight member 40 may be elastically deformed when pressed by the fixing rib 25 of the cap 20 and/or the main body 100 in the vertical direction. Also, the airtight member 40 may be compressed by the fixing rib 25 and/or the main body 100 . Accordingly, when the fixing rib 25 moves by rotation of the cap 20, the airtight member 40 may be elastically deformed so as to come into close contact with the fixing rib 25.

Expressed differently from a relative point of view, when the main body 100 rotates, the airtight member 40 may be elastically deformed so as to completely adhere to the fixing rib 25 and the stepped portion 320 .

According to this, since the airtight member 40 can seal the capsule 10, leakage of gas discharged from the capsule 10 can be prevented.

That is, the airtight member 40 may be vertically coupled to the lower surface of the fixing rib 25 and the upper surface of the bridge 30 so as to be airtight. In addition, the airtight member 40 forms a groove protruding or sinking upward and downward, and is pressed against the bottom surface of the fixing rib 25 and the upper surface of the bridge 30 by elastic deformation, thereby sealing the inner space. .

The airtight member 40 may perform a function of preventing leakage of fluid discharged from the capsule 10 to the outside. Therefore, the airtight member 40 may also be called a "leakage preventer".

Meanwhile, the gas injection device 1 may further include an O-ring 35 installed in the insertion hole 130 .

The O-ring 35 may be provided for airtightness between the beverage container coupled to the insertion hole 130 and the main body 100. For example, the O-ring 35 may be formed of a rubber material.

The O-ring 35 may be installed on the uppermost side of the insertion hole 130 so as to be in close contact with the upper end of the beverage container coupled to the insertion hole 130.

FIG. 3 is a cross-sectional view showing a longitudinal section of the gas injection device taken along line II' of FIG. 1, and FIG. 4 is a cross-sectional view showing a longitudinal section of the bridge taken along line A-A' of FIG.

3 and 4, the cap 20 may further include a cap screw thread 22 for guiding engagement with the bridge 30 and a fixing rib 25 for fixing the capsule 10. .

The cap screw thread 22 may be formed along an inner surface of the cap case 21 . For example, the cap screw thread 22 may continuously extend in a diagonal direction along the inner surface of the cap case 21 . In addition, the cap screw thread 22 may be formed such that recessed portions and protruding portions are alternately disposed in the vertical direction.

An external screw thread 210 corresponding to the cap screw thread 22 may be formed on the bridge 30 . In addition, the cap screw thread 22 and the external screw thread 210 may be formed in male and female shapes corresponding to each other.

Accordingly, the cap screw thread 22 and the external screw thread 210 may be matched by rotation. For example, the cap 20 may be coupled to the bridge 30 while moving downward when rotated in one direction, and released from the bridge 30 while moving upward when rotated in the other direction.

The fixing rib 25 may be located inside the cap case 21 . Also, the fixing rib 25 may be spaced apart from the inner surface of the cap case 21 by a predetermined distance.

In more detail, the fixing rib 25 is formed at a position spaced apart from the central axis O of the cap 20 by a first distance in the radial direction, and the cap case 21 is formed at the center of the cap 20. It may be formed at a position spaced apart from the axis O by a second distance greater than the first distance in the radial direction.

Accordingly, a separation space may be formed between the inner surface of the cap case 21 and the outer surface of the fixing rib 25 . The separation space can be understood as a space into which the upper cover 200 is inserted when the cap 20 and the bridge 30 are coupled.

The fixing rib 25 may extend downward from an upper end of the cap case 21 . In detail, the fixing rib 25 may extend from an upper end of the cap case 21 to a position higher than a lower end of the cap case 21 .

The fixing rib 25 may form a space in which the capsule 10 is accommodated. That is, the capsule 10 may be inserted into the inner circumferential surface formed by the fixing rib 25 . The fixing rib 25 may extend downward from the cap case 21 to have an inner diameter corresponding to the outer diameter of the capsule 10 . For example, the fixing rib 25 may be formed in a cylindrical shape with an open lower surface.

That is, the fixing rib 25 may be formed to surround the upper surface and upper side surface of the capsule 10 . Also, the capsule 10 may be fixed and supported by the fixing rib 25 . Thus, the capsule 10 can be inserted into the fixing rib 25 from below.

The lower surface and the lower side of the capsule 10 inserted into the fixing rib 25 may be exposed. That is, the capsule 10 may be formed longer than the fixing rib 25 .

The fixing rib 25 may be coupled to the upper surface of the airtight member 40 . In detail, rib grooves 26 and 27 into which a plurality of protrusions 41 and 42 formed on the upper surface of the airtight member 40 are inserted may be formed on the bottom surface of the fixing rib 25 .

The rib grooves 26 and 27 may be formed in plurality. The rib grooves 26 and 27 may be formed to correspond to the protrusions 41 and 42 formed on the upper surface of the airtight member 40 .

For example, the rib grooves 26 and 27 may include an inner rib groove 26 and an outer rib groove 27 spaced apart from the inner rib groove 27 in a radial direction.

The inner rib groove 26 is recessed upward from the bottom surface of the fixing rib 25 and may extend in a circumferential direction.

An upper inner confidential protrusion 41 formed on the upper surface of the airtight member 40 may be inserted into the inner rib groove 26 to correspond to the inner rib groove 26 .

The outer rib groove 27 may be formed to be recessed upward on the lower surface of the fixing rib 25 spaced apart from the inner rib groove 26 by a predetermined distance in a radial direction. And the outer rib groove 27 may extend along the circumferential direction.

An outer upper confidential protrusion 42 formed on the upper surface of the airtight member 40 may be inserted into the outer rib groove 27 to correspond to the outer rib groove 27 .

Meanwhile, the inner rib groove 26 may be referred to as a "first rib groove" and the outer rib groove 27 may be referred to as a "second rib groove".

A plurality of grooves formed on the lower surface of the fixing rib 25 and a plurality of protrusions formed on the upper surface of the airtight member 40 may be formed to correspond to each other in male and female shapes.

According to this, when the airtight member 40 is inserted into the fixed rib 25, the lower surface of the fixed rib 25 and the upper surface of the airtight member 40 are curved surfaces that are bent multiple times rather than on one plane. can be attached. Therefore, there is an advantage in preventing leakage of gas by effectively blocking the microspace than in the case of the single plane. That is, further improved confidentiality performance can be provided.

As described above, the bridge 30 and the cap 20 may be coupled to each other. In detail, the upper cover 200 may include an external screw thread 210 that guides coupling or separation with the cap 20 through rotation.

The external screw thread 210 may be formed along the outer surface of the upper cover 200 . For example, the external screw thread 210 may continuously extend along the outer surface of the upper cover 200 . In addition, the external screw thread 210 may be formed such that depressions and protrusions are alternately disposed in the vertical direction.

The external screw thread 210 may be formed to correspond male and female to the cap screw thread 22 . Therefore, when the external screw thread 210 and the cap screw thread 22 contact each other and rotate, the cap 20 and the upper cover 200 may be coupled or separated.

As described above, the main body 100 may form an insertion port 130 into which the beverage container is inserted. And the main body 100 may further include an internal screw thread 110 for guiding coupling with the beverage container.

The internal thread 110 may be formed along one side defining the insertion hole 130 . For example, the internal thread 110 may continuously extend in a diagonal direction along an outer surface or an inner surface defining the insertion hole 130 . In addition, the internal screw thread 110 may be formed such that depressions and protrusions are alternately disposed in the vertical direction.

Here, the outer surface defining the insertion hole 130 can be understood as a circumferential surface positioned farther from the central axis O than the inner surface defining the insertion hole 130 .

The internal thread 110 may be coupled to or separated from the top of the beverage container through rotation. That is, a screw thread corresponding to the internal screw thread 110 may be formed in the beverage container. Therefore, the inner screw thread 110 and the upper end of the beverage container may have shapes corresponding to male and female.

Meanwhile, the bridge 30 may further include a stepped portion 320 on which the airtight member 40 is seated.

The stepped portion 320 may be located inside the upper cover 200 . For example, the stepped portion 320 may be spaced apart from the inside by a predetermined interval toward the center of the upper cover 200 .

That is, the stepped portion 320 may be located in the installation space 250 . Also, the stepped portion 320 may be located on the upper surface 105 of the main body 100 .

Specifically, the stepped portion 320 may be formed along the upper end of the inner circumferential surface 300 defining the flow space 310 . That is, the stepped portion 320 may form an upper portion of the flow space 310 into which the capsule 10 is inserted.

For example, the stepped portion 320 may extend upward from the upper surface 105 . That is, the stepped portion 320 may have a cylindrical shape. In this case, the stepped portion 320 may extend upward to be located lower than the upper cover 200 .

In other words, the stepped portion 320 may form a hole having a predetermined radius based on the central axis O. And the hole (Hole) can be understood as a part of the flow space (310).

In detail, with respect to the central axis O, the upper cover 200 extends in a circumferential direction to have a first radius, and the stepped portion 320 has a second radius shorter than the first radius. It may extend in a circumferential direction. Here, the inner circumferential surface 300 defining the flow space 310 may have a third radius equal to or shorter than the second radius with respect to the central axis O.

The airtight member 40 may be coupled to the stepped portion 320 . Accordingly, the stepped portion 320 may be referred to as a “airtight member insertion portion”.

The stepped portion 320 may support the airtight member 40 from below. That is, the airtight member 40 may be inserted into the upper surface of the stepped portion 320 .

By the step portion 320, the airtight member 40 coupled to the upper surface of the stepped portion 320, and the fixing rib 25 coupled to the upper surface of the airtight member 40, the cap 20 is When the lower surface of the flow space 310 is ruptured by the pressure bar 150, it may be sealed.

The stepped portion 320 may include grooves 321 , 323 , and 325 coupled to the airtight member 40 .

The grooves 321 , 323 , and 325 may be recessed downward from the upper surface of the stepped portion 320 to have a predetermined width. Also, the grooves 321 , 323 , and 325 may extend in a circumferential direction. Here, the predetermined width may be the same as the width of the projections 46, 47, and 48 formed on the bottom surface of the airtight member 40 to be described later.

The grooves 321 , 323 , and 325 may be formed in plurality. In addition, the bottom surface of the airtight member 40 may be inserted into the plurality of grooves 321 , 323 , and 325 . Also, the airtight member 40 may be provided with corresponding protrusions to be inserted into the plurality of grooves 321 , 323 , and 325 .

In detail, the stepped portion 320 may include a central confidential groove 321 , an inner confidential groove 323 and an outer confidential groove 325 .

The central confidential groove 321, the inner confidential groove 323, and the outer confidential groove 325 may extend along the circumference of the stepped portion 320 in a circumferential direction.

The outer airtight groove 325 may be positioned radially apart from the central airtight groove 321, and the central airtight groove 321 may be spaced apart from the inner airtight groove 323 in a radial direction.

That is, the inner airtight groove 323 may be positioned closest to the central axis O, and the outer airtight groove 325 may be positioned closest to the inner circumferential surface of the upper cover 200.

In other words, the inner confidential groove 323 may be spaced apart from the central axis O in a radial direction by a first length. The central confidential groove 321 may be spaced apart by a second length longer than the first length, and the outer confidential groove 325 may be spaced apart by a third length longer than the second length.

On the other hand, the inner confidential groove 323 and the outer confidential groove 325 may be referred to as "both confidential grooves".

The central airtight groove 321 and the two side airtight grooves 323 and 325 may be recessed to have different depths. For example, the inner confidential groove 323 and the outer confidential groove 325 may be recessed downward from the upper surface of the stepped portion 320 to have the same depth. In addition, the central confidential groove 321 may be recessed downward more deeply than the inner confidential groove 323 and the outer confidential groove 325 .

In addition, the central confidential groove 321, the inner confidential groove 323, and the outer confidential groove 325 are protruding lengths of the lower confidential projections 46, 47, and 48 formed to correspond to the confidential member 40, respectively. It can be sunk to a depth corresponding to .

When the limiting pin 50 is coupled, the central confidential groove 321, the inner confidential groove 323, and the outer confidential groove 325 move downward from the corresponding lower confidential projections 46, 47, and 48. It can be located remotely.

That is, the central confidential groove 321, the inner confidential groove 323, and the outer confidential groove 325 may form a separation space 322 with the lower surface of the confidential member 40.

The separation space 322 is a lower confidential projection formed on the bottom surface of the sealing member 40 when the limiting pin 50 is removed and the sealing member 40 moves downward by the rotation of the cap 20. It can be understood as a space where (46, 47, 48) is inserted and closely adhered.

In addition, when the lower confidential protrusions 46, 47 and 48 of the sealing member 40 are inserted, the sealing member 40 may be elastically deformed by a pressing force. Therefore, the separation space 322 can also be understood as a space that can allow elastic deformation of the airtight member 40 .

According to the central confidential groove 321, the inner confidential groove 323 and the outer confidential groove 325, the capsule 10 inserted into the flow space 310 by being coupled to each other so that the confidential member 40 is in close contact with each other. There is an advantage that can be sealed and / or airtight around the.

In particular, the plurality of grooves of the stepped portion 320 and the plurality of protrusions of the airtight member 40 may be formed to correspond to each other in male and female shapes.

According to this, when the airtight member 40 is inserted into the stepped portion 320, the upper surface of the stepped portion 320 and the lower surface of the airtight member 40 are curved surfaces that are bent multiple times rather than a single plane. can be attached to each other. Therefore, there is an advantage in preventing leakage of gas by effectively blocking the microspace than in the case of the single plane. That is, further improved confidentiality performance can be provided.

Meanwhile, the central confidential groove 321 may be referred to as a "first confidential groove", the inner confidential groove 323 may be referred to as a "second confidential groove", and the outer confidential groove 325 may be referred to as a "second confidential groove". It can be called “The Third Secret Home”.

Meanwhile, a limiting groove 220 for preventing or limiting reverse rotation of the cap 20 may be formed in the external screw thread 210 formed along the outer circumferential surface of the upper cover 200 .

The limiting groove 220 may be formed on an upper surface or a lower surface of the external screw thread 210 . For example, the limiting groove 220 may be formed to be recessed or projected obliquely from the upper surface of the external screw thread 210 in order to allow rotation in one direction and limit rotation in the opposite direction.

Here, rotation in one direction allowed by the limit groove 200 is defined as a rotation direction in which the cap 20 and the upper cover 200 are coupled. Rotation in the opposite direction may be defined as a rotation direction in which the cap 20 is separated from the upper cover 200 .

That is, the restriction groove 200 may be provided so that the cap 20 is not separated from the upper cover 200 .

The restricting grooves 220 may be formed in plural, and may be arranged so that obliquely recessed spaces are spaced apart at predetermined intervals along the circumferential direction.

In addition, a protrusion (not shown) may be formed on the lower surface of the cap screw thread 22 so as to correspond to the limiting groove 220 and protrude or sink obliquely. Therefore, when the cap 20 is coupled to the upper cover 200, the protrusion of the cap screw thread 22 formed to correspond to the oblique direction in which the restriction groove 220 is formed is the restriction groove 220 when coupled. ), and can be caught in the limiting groove 200 during separation. Accordingly, coupling between the cap 20 and the upper cover 200 may be allowed, and separation may be restricted.

5 is an upper perspective view showing an airtight member according to an embodiment of the present invention, and FIG. 6 is a lower perspective view showing an airtight member according to an embodiment of the present invention.

Referring to FIGS. 5 and 6 , the airtight member 40 may be formed to closely adhere to the outer circumferential surface of the capsule 10 .

For example, an airtight hole 45 through which the capsule 10 passes may be formed at the center of the airtight member 40 . The airtight hole 45 may be formed to have the same inner diameter as that of the fixing rib 25 and the stepped portion 320 .

The airtight member 40 guides the downward movement of the fixing rib 35 so that the pressing rod 150 can hit the bottom surface of the capsule 10, and at the same time, the gas discharged from the capsule 10 leakage can be prevented. For example, the airtight member 40 may include a disc shape or a donut shape.

Specifically, the airtight member 40 may include a plurality of upper airtight projections 41 and 42 guiding engagement with the fixing rib 35 .

The plurality of upper confidential projections 41 and 42 may include an inner upper confidential projection 41 inserted into the inner rib groove 26 and an outer upper confidential projection 42 inserted into the outer rib groove 27. can

The inner upper confidential protrusion 41 protrudes upward from the upper surface of the airtight member 40 to have a width corresponding to the inner rib groove 26 and may extend in a circumferential direction.

The outer upper confidential protrusion 42 protrudes upward from the upper surface of the airtight member 40 to have a width corresponding to the outer rib groove 27 and may extend in a circumferential direction.

The outer upper confidential projection 42 may be spaced apart from the inner upper confidential projection 41 in a radial direction.

The inner upper confidential projection 41 may be referred to as a "first upper confidential projection", and the outer upper confidential projection 42 may be referred to as a "second upper confidential projection".

The airtight member 40 may form an upper groove 43 into which the lower surface of the fixing rib 35 is seated and/or inserted.

The upper groove 42 may be located between the inner upper confidential projection 41 and the outer upper confidential projection 42 . Also, the upper groove 42 may be recessed downwardly from the upper surface of the airtight member 40 .

The lower surface of the fixing rib 25 protruding from between the inner rib groove 26 and the outer rib groove 27 may be inserted into the upper groove 43 .

By means of the fixing ribs 25 inserted into the plurality of upper secret protrusions 41 and 42, the bottom surface of the fixing ribs 25 and the airtight member 40 form a central space where the capsule 10 is located. It can be combined to make it confidential.

The airtight member 40 may further include a plurality of lower airtight protrusions 46 , 47 , and 48 guiding engagement with the stepped portion 320 .

The plurality of lower confidential projections 46, 47, 48 include a central lower confidential projection 46 inserted into the central confidential groove 321, an inner lower confidential projection 47 inserted into the inner confidential groove 323, and An outer lower confidential protrusion 48 inserted into the outer confidential groove 325 may be included.

The central lower confidential protrusion 46 protrudes downward from the lower surface of the confidential member 40 to have a width corresponding to the central confidential groove 321 and may extend in a circumferential direction.

The inner lower confidential protrusion 47 protrudes downward from the lower surface of the sealing member 40 to have a width corresponding to the inner confidential groove 323 and may extend in a circumferential direction.

The inner lower confidential projection 47 may be spaced apart from the central lower confidential projection 46 in the center direction.

The outer lower confidential protrusion 48 protrudes downward from the lower surface of the airtight member 40 to have a width corresponding to the outer confidential groove 325 and may extend in a circumferential direction.

The outer lower confidential projection 48 may be positioned radially apart from the central lower confidential projection 46 .

On the other hand, the central lower confidential projection 46 may be referred to as a "first lower confidential projection", the inner lower confidential projection 47 may be referred to as a "second lower confidential projection", and the outer lower confidential projection 47 may be referred to as a "second lower confidential projection". The protrusion 48 may be referred to as a “third lower confidential protrusion”.

The plurality of lower confidential protrusions 46 , 47 , and 48 may be inserted into the upper surface of the stepped portion 320 . Accordingly, the plurality of lower confidential protrusions 46 , 47 , 48 and the stepped portion 320 may be combined to airtightly seal the central space where the capsule 10 is located.

A plurality of airtight protrusions 41, 42, 46, 47, 48 formed on the upper and lower surfaces of the airtight member 40 are coupled so as to be vertically inserted into the fixing rib 25 and the stepped portion 320, respectively. By doing so, the space around the capsule 10 is sealed to prevent gas leakage, and the capsule 10 can be stably fixed.

According to this, the gas injection device 1 coupled to the beverage container can completely seal the capsule 10 by the fixing rib 25, the airtight member 40 and the stepped portion 320.

Therefore, the gas injection device 1 has the advantage of not requiring a backflow prevention means provided as a separate component to prevent a reverse flow of beverage due to a pressure change due to gas leakage in a conventional gas injection device.

7 is an exemplary view showing a gas injection process of a gas injection device according to an embodiment of the present invention.

Hereinafter, the operation of the gas injection device 1 will be described with reference to FIG. 7 .

Assume that the gas injection device 1 is coupled to the top of a beverage container (not shown). That is, the operation will be described in a state in which the beverage container is inserted into the insertion hole 130 and coupled.

The user can remove the limiting pin 50 coupled to the bridge 30 in an outward direction (F). When the limiting pin 50 is removed, rotation restriction of the cap 20 may be released.

And the user can rotate the cap 20 in a direction R in which the bridge 30 is coupled. By the rotation, the cap 20 may move downward while rotating according to the guide of the external screw thread 210 .

By the downward movement of the cap 20, the capsule 10 accommodated in the cap 20 and the fixing rib 25 move downward (D).

At this time, the upper airtight projections 41 and 42 formed on the upper surface of the airtight member 40 are inserted into the rib grooves 26 and 27 formed on the lower surface of the fixing rib 25. And the bottom surface of the fixing rib 25 protrudes by the rib grooves 26 and 27 is inserted into the upper groove 43 of the airtight member.

In addition, the lower surface of the fixing rib 25 presses the upper surface of the airtight member 40 downward (D). At the same time, the airtight member 40 is elastically deformed to come into closer contact with the lower surface of the fixing rib 25 .

Further, the airtight member 40 may move downward (D) to the stepped part 320 by the downward movement of the fixing rib 25 .

At this time, the lower confidential protrusions 46 , 47 , and 48 of the confidential member 40 may be inserted into a plurality of confidential grooves 321 , 323 , and 325 recessed in the stepped portion 320 . In addition, the airtight member 40 may be elastically deformed to close the separation space 322 by a force that is pressed downward (D).

That is, the airtight member 40 and the stepped portion 320 may be closely coupled.

Meanwhile, the capsule 10 fixed to the fixing rib 25 and moving downward together may be pressed downward (D) while being in contact with the upper end of the pressure bar 150 . According to this, the pressure rod 150 may rupture the capsule 10 by striking the bottom surface of the capsule 10 .

That is, the upper end of the pressing rod 150 may rupture or penetrate the lower surface of the capsule 10 by downward movement of the capsule 10 . According to this, the pressure bar 150 can discharge gas from the capsule 10 .

A very high pressure is formed inside the capsule 10 . Therefore, the moment the bottom surface of the capsule 10 is ruptured, the gas stored in the capsule 10 can be rapidly discharged into the microspace formed between the pressure rod 150 and the capsule 10 . (Note the dotted arrow)

Gas discharged from the capsule 10 may flow into the discharge hole 160 through the flow space 310 .

And the gas passing through the discharge hole 160 may flow into the beverage container. (Note the dotted arrow)

At this time, since the beverage container is tightly coupled to both the inner and outer surfaces defining the insertion hole 130, leakage of gas passing through the discharge hole 160 can be further prevented.

Therefore, the gas is dissolved in the beverage in the beverage container, and the dissolved amount of the gas is increased, and leakage is minimized, so that the dissolved amount can be maintained even during long-term storage.

In summary, the fixing rib 25, the airtight member 40, and the stepped portion 320 can seal the flow path of the gas from the outside so that the gas discharged from the capsule 10 does not leak.

In addition, the upper end of the beverage container may be in close contact with the insertion port 130 in three directions to seal the microspace in which gas may leak.

According to this, the gas introduced into the beverage can be dissolved in the beverage to increase the dissolved amount, and the function of the product can be maintained as it is by preventing leakage of the gas even after a long period of time.

In addition, the gas discharged through the fine gap of the capsule 10 formed by the blow of the pressure bar 150 flows into the flow space 310, and the inside of the beverage container through the discharge hole 160. It follows the flow path flowing into the

That is, the gas injection device 1 forms a flow path different from a flow path in which gas flows into a beverage container through a tube formed inside a pressure rod in a conventional gas injection device.

And by forming the flow path of the above-described gas, the gas injection device 1 according to the embodiment of the present invention can solve the problem of contamination of the pressure bar formed of a metal material, the backflow problem, and the gas leakage problem in the conventional gas injection device. .

In addition, according to the structure of the gas injection device 1 according to the embodiment of the present invention, it is possible to eliminate the risk of rust by preventing contact between the beverage (moisture) and the capsule 10 made of metal. That is, contamination of edible beverages can be prevented.

In addition, since it is compactly coupled with the beverage container, the size can be minimized, and at the same time, the blocking ability of the microspace in which gas can leak to the outside can be further improved.

In addition, since the upper part of the beverage container is inserted into and coupled to the inside of the main body 100, the vertical length of the gas injection device 1 can be minimized, so that the beverage container to which the gas injection device 1 is coupled can be stored in a refrigerator. When stored in a storage device such as, there is an advantage in satisfying the existing beverage container specifications.

1: gas injection device
10: capsule
20: cap
30: bridge
40: confidentiality
50: limit pin
150: pressure bar
160: discharge hole

Claims (11)

a capsule in which fluid is stored;
a cap including a fixing rib extending downward to accommodate the capsule and a cap case spaced apart from the fixing rib in a radial direction;
a bridge coupled to have the same central axis as the cap and forming a flow space into which the capsule is inserted; and
And a sealing member for guiding vertical coupling between the fixing rib and the bridge so as to seal the flow space,
the bridge,
The flow space and the main body formed spaced apart from the flow space in the radial direction to form an insertion hole for guiding the insertion of the beverage container;
an upper cover extending upward from the upper surface of the main body to have a diameter smaller than that of the upper surface of the main body, and having the airtight member and the fixing rib located therein; and
It extends upward from the upper surface of the main body to be located inside the upper cover, defines the upper part of the flow space, and includes a stepped portion into which the airtight member is inserted,
The main body, gas injection device including a filter for filtering foreign substances flowing into the beverage container in the flow space.
According to claim 1,
The airtight member is
A gas injection device formed to be elastically deformed and compressed by the upper surface of the stepped portion and the lower surface of the fixing rib.
According to claim 1,
Gas injection device wherein the inner circumferential surface of the cap case is rotationally coupled to the outer circumferential surface of the upper cover.
According to claim 1,
The main body further includes a base defining a lower surface of the flow space and having a discharge hole communicating between the flow space and the inside of the beverage container,
The lower end of the insertion hole extends to surround the base gas injection device.
According to claim 4,
The main body further includes a pressure rod extending upward from an upper surface of the base and capable of striking a lower surface of the capsule.
According to claim 5,
The gas discharged from the capsule is injected into the beverage container through the flow space and the discharge hole.
According to claim 1,
The stepped portion is formed with a plurality of airtight grooves into which lower airtight projections protruding downward from the bottom surface of the airtight member are inserted,
The plurality of airtight grooves are arranged to be spaced apart in a radial direction with respect to the central axis.
According to claim 7,
The plurality of airtight grooves,
a first airtight groove formed along an upper end of an inner circumferential surface of the stepped portion; and
A second hermetic groove positioned radially apart from the first hermetic groove
contains,
The lower airtight projection protrudes to correspond to the first airtight groove and the second airtight groove.
According to claim 1 or 7,
A plurality of rib grooves are formed on the bottom surface of the fixing rib and are recessed upward.
The airtight member is
Gas injection device comprising an upper airtight projection protruding upward from the upper surface to be inserted into the plurality of rib grooves.
According to claim 1,
Further comprising a limiting pin detachably coupled to the lower outer circumferential surface of the upper cover and limiting rotation of the cap,
The limiting pin,
a fitting portion extending to surround an outer circumferential surface of the upper cover and having an opening opened in one direction;
a limiting protrusion protruding from an upper surface of the fitting portion and supporting a lower end of the cap; and
A gas injection device including a gripper that can be gripped by a user.
According to claim 4,
The filter is located at the lower end of the base and blocks foreign substances that may be discharged from the discharge hole.

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