KR102283707B1 - Valve assembly for supplying carbonated water capable of preventing reverse flow - Google Patents

Abstract

The present invention relates to a valve assembly for supplying carbonated water having a backflow prevention function, and the valve assembly for supplying carbonated water having a backflow prevention function according to the present invention can supply at least one of carbon dioxide gas or purified water to a storage container to a user. a valve module connected to the carbon dioxide cylinder and the purified water supply source; a button unit for opening and closing the carbon dioxide gas cylinder in conjunction with the user's operation; a backflow prevention unit provided in the valve module to allow only one direction flow of the fluid; characterized by including.
Accordingly, there is provided a valve assembly for supplying carbonated water having a backflow preventing function capable of preventing the reverse flow of purified water stored in the storage container in advance.

Description

VALVE ASSEMBLY FOR SUPPLYING CARBONATED WATER CAPABLE OF PREVENTING REVERSE FLOW

The present invention relates to a valve assembly for supplying carbonated water having a backflow prevention function, and more particularly, to a valve assembly for supplying carbonated water having a backflow prevention function for smoothly supplying carbon dioxide or purified water to a user.

In general, a water purifier is a device for drinking by filtering foreign substances contained in external raw water. In recent years, interest in drinking healthy water beyond simply drinking filtered water is increasing.

In particular, as the efficacy of carbonated water is known, various companies have launched carbonated water production apparatuses of a method of injecting carbon dioxide gas into a container containing water.

The carbonated water production apparatus produces carbonated water by supplying carbon dioxide gas into the container from a carbon dioxide gas pressure vessel in which carbon dioxide gas is compressed and stored.

However, in the case of the conventional carbonated water production apparatus, a separate drinking water supply facility is not included and carbon dioxide gas is provided alone, and thus, drinking water must first be secured through a separate water purifier.

In particular, in the case of supplying carbon dioxide gas, the pressure inside the storage container is excessively raised, which frequently causes problems such as a reverse flow of purified water in the storage container or the failure of smoothly supplying carbon dioxide gas.

Accordingly, an object of the present invention is to provide a valve assembly for supplying carbonated water having a backflow preventing function capable of preventing the reverse flow of purified water stored in a storage container in advance in order to solve the conventional problems.

The above object according to the present invention, a valve module connected to the carbon dioxide gas cylinder and the purified water supply source so as to supply at least one of carbon dioxide gas or purified water to the user to the storage container; a button unit for opening and closing the carbon dioxide gas cylinder in conjunction with the user's operation; and a backflow prevention unit provided in the valve module to allow only one direction flow of the fluid, wherein the valve module includes: an adapter in which a mounting groove is formed so that the storage container can be mounted; and a discharge nozzle connected to the adapter to form a hollow so as to supply carbon dioxide to the storage container, but supply purified water along an outer circumferential surface; wherein the backflow prevention unit is disposed between the adapter and the discharge nozzle a plate member disposed so as to be able to move up and down in the flow path formed in the adapter and having a plurality of curved grooves formed along the circumferential surface; and a protrusion member protruding from the plate member toward the ejection nozzle.

In addition, the backflow prevention part may be pressurized by the fluid flowing from the adapter toward the ejection nozzle to open the flow path, but pressurized by the fluid flowing from the hollow of the ejection nozzle toward the adapter to block the flow path.

In addition, a pair of the protruding members may be formed to cross each other at the center of the plate member.

In addition, the backflow prevention part may be made of a polypropylene material.

In addition, the valve module may further include a pressure adjusting unit for adjusting the pressure in the storage container mounted on the adapter.

In addition, the pressure control unit, the valve body mounted on the adapter, forming an exhaust passage for communicating the space in the storage container and the outside air; a switching valve that blocks the carbon dioxide gas from being exhausted through the exhaust passage when carbon dioxide gas is supplied through the ejection nozzle, but opens the exhaust passage when purified water is supplied through the ejection nozzle there is.

In addition, the pressure control unit may further include a manual valve for exhausting the carbon dioxide gas in the storage container to the outside by selectively opening the exhaust path by a user's operation.

In addition, the terminal portion of the exhaust passage is formed such that the inner diameter decreases toward the outside, the manual valve, a valve pin mounted to the terminal portion of the exhaust passage; and an elastic member for applying an elastic force along a direction in which the valve pin is pressed by the carbon dioxide gas inside the adapter so that the valve pin is in close contact with the end of the exhaust passage.

In addition, the vertical frame; a cover frame that is hingedly rotatably installed from the vertical frame, and on which the valve module is mounted; It further includes a frame part having a shaft fixed to the vertical frame at a position facing the valve pin, and when the hinge of the cover frame is rotated, the valve pin may be pressed while in contact with the shaft.

In addition, the shaft is mounted with one surface extending from the vertical frame toward the valve pin, and the other surface exposed to the opposite surface on which the valve pin is installed based on the vertical frame, and the cover frame includes the valve module. The body portion to which this is mounted; and a leg portion extending from the body portion to pass through the vertical frame and hinge-rotatably installed on the shaft.

In addition, the pressure control unit may further include an automatic valve for selectively opening the exhaust path to exhaust the carbon dioxide gas in the storage container when the pressure in the storage container is equal to or greater than a set value.

In addition, the button portion, a contact portion installed on the upper portion of the frame portion so that the user touches and presses; a guide for guiding the elevating path of the contact part; It may include; a restoration unit that applies an elastic force so that the contact unit can return to its original position in a state in which the user's pressing force is released.

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According to the present invention, by blocking in advance the reverse flow of the purified water stored in the storage container, a backflow prevention function that can prevent the purified water from flowing into the carbon dioxide gas cylinder or from being discharged to the outside when the carbon dioxide gas cylinder is replaced A valve assembly for supplying carbonated water is provided.

In addition, there is provided a valve assembly for supplying carbonated water having a backflow preventing function that can receive carbonated water through a single assembly by allowing a user to select carbon dioxide gas or purified water to be supplied.

In addition, it is possible to prevent safety accidents in advance by automatically adjusting the pressure of the storage container.

In addition, after the supply of carbonated water is completed, a portion of carbon dioxide gas is discharged in the process of collecting the storage container by the user so that the internal pressure of the storage container is adjusted, so that the user can safely collect the storage container and drink carbonated water.

1 is a perspective view of a valve assembly for supplying carbonated water having a backflow prevention function according to an embodiment of the present invention;
2 is a bottom perspective view of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1;
3 is a schematic perspective view of a valve module of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1;
4 is a schematic bottom perspective view of a valve module of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1;
5 is a cross-sectional view taken along V - V' of the valve module of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 3;
6 schematically shows a switching valve and a manual valve of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1;
7 is a cross-sectional view taken along VII - VII' of the valve module of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 3;
8 is a schematic view of a button part of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1;
9 schematically shows a carbon dioxide gas blowing operation through the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1;
10 schematically shows the operating principle of the automatic valve of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1;
11 is a schematic view of a purified water dispensing operation through the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1;
12 schematically shows an operation of disengaging the storage container from the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1;
13 schematically shows the operation principle of the manual valve when the storage container is disconnected from the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 12;
FIG. 14 schematically illustrates a backflow prevention operation principle of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 .

Hereinafter, a valve assembly for supplying carbonated water having a backflow prevention function according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a valve assembly for supplying carbonated water having a backflow prevention function according to an embodiment of the present invention, and FIG. 2 is a bottom perspective view of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 .

1 and 2, the valve assembly 100 for supplying carbonated water having a backflow prevention function according to an embodiment of the present invention smoothly provides carbon dioxide gas and drinking water supplied from a predetermined source to the user. As a device for controlling so as to be able to do so, it includes a frame part 110 , a valve module 120 , a button part 160 , an operation part 170 , and a backflow prevention part 180 .

The frame part 110 constitutes an overall skeleton in a state in which the valve module 120 is mounted, and includes a vertical frame 111 , a cover frame 114 , and a shaft 117 .

The vertical frame 111 is a flat-panel frame on which a cover frame 114 and a shaft 117 to be described later are mounted, and a pair of through-holes 113 on the lower side so that a cover frame 114 to be described later can be mounted thereon. These are formed at positions spaced apart from each other, and an insertion hole 112 is formed in the center so that a shaft 117 to be described later can be mounted thereon.

The cover frame 114 is installed on the vertical frame 111 and is a frame to which the valve module 120 is mounted, and includes a body portion 115 and a leg portion 116 .

The body part 115 is installed to extend in a direction perpendicular to the cover frame 114 , and an accommodation space is formed so that the valve module 120 can be mounted thereon.

A pair of the leg portions 116 extend from both side ends of the body portion 115 , and each of the leg portions 116 is positioned to pass through the through hole 113 of the vertical frame 111 . At this time, the leg part 116 is not fixed to the through hole 113 , and the through hole 113 may have a clearance between the leg part 116 and the leg part 116 so that a space in which the leg part 116 can move is secured. consists of an area.

On the other hand, the leg portion 116 passing through the through hole 113 is hingedly mounted to the shaft 117 to be described later. Accordingly, the cover frame 114 rotates with a predetermined radius around the shaft 117 , and the through hole 113 limits the rotation radius of the leg portion 116 .

One end of the shaft 117 performs a function of regulating the pressure in the storage container (B) by pressing a manual valve 157, which will be described later, and the other end functions as a center of rotation of the cover frame 114. , is mounted on the vertical frame (111).

That is, the shaft 117 is inserted and fixed in the insertion hole of the vertical frame 111 , and both ends are located on different surfaces with respect to the vertical frame 111 .

On the other hand, the end of the shaft 117 on the side where the body part 115 is located based on the vertical frame 111 is disposed opposite to a valve pin 158 to be described later, and the moving valve pin 158 is connected to the shaft 117 . The end surface of the shaft 117 is inclined so that it can be pressed smoothly after the end of the shaft 117 is in contact.

In addition, the end of the shaft 117 on the side where the leg part 116 is located with respect to the vertical frame 111 is disposed in contact with the leg part 116 in the space between the pair of spaced apart leg parts 116, A pair of leg portions 116 are rotatably installed on both sides of the shaft 117 .

Therefore, according to the structure of the frame unit 110 described above, the end of the cover frame 114 is rotatably installed around the shaft 117 , and the rotation radius of the cover frame 114 is in the vertical frame 111 . It is limited by the lengthwise size of the formed through-hole 113 .

3 is a schematic perspective view of a valve module of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 , and FIG. 4 is a schematic bottom view of the valve module of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 . It is a perspective view, and FIG. 5 is a cross-sectional view taken along V - V' of the valve module of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 3 .

3 to 5 , the valve module 120 provides carbon dioxide or purified water to the user while connected to the carbon dioxide cylinder S in which the compressed carbon dioxide is stored and the purified water supply in which the drinking water is stored, respectively. As a function of stably supplying the valve, it includes an adapter 130 , an ejection nozzle 140 , and a pressure adjusting unit 150 .

The adapter 130 distributes purified water and carbon dioxide from the purified water port 133 and the carbon dioxide gas port 134 and supplies the purified water and carbon dioxide gas to the storage container B through the ejection nozzle 140 to be described later. ) and an extension 135 and a sealing member 137 .

The base part 131 has a purified water port 133 and a carbon dioxide gas port 134 formed at different positions on the upper surface, and each port is connected to a purified water supply source and a carbon dioxide gas cylinder (S). In addition, in the present embodiment, the base portion 131 has been described as having a disk shape, but the shape is not limited thereto.

Meanwhile, a purified water passage 132 connecting the purified water port 133 and the ejection nozzle 140 to be described later is formed in the base portion 131 . In the present embodiment, the purified water flow path 132 functions as a guide path for guiding the purified water supplied from the purified water port 133 toward the outer surface of the ejection nozzle 140 .

In addition, the purified water passage 132 is a passage for guiding the purified water supplied from the purified water port 133 toward the outer surface of the ejection nozzle 140 , and the carbon dioxide gas in the storage container B is connected to the purified water passage 132 . It is configured to be exhausted to the outside through the exhaust passage 10 .

In addition, a flow path 138 is formed at the upper end of the region where the ejection nozzle 140 is mounted, and a backflow prevention unit 180 to be described later is accommodated so as to be able to move up and down.

The extension part 135 extends from the lower end of the base part 131 , and a mounting groove 136 in which the storage container B can be mounted is formed.

The sealing member 137 is a member for sealing the inside of the storage container (B) mounted on the extension part 135 from the outside so that the supplied carbon dioxide gas is not leaked to the outside. On the other hand, the sealing member 137 is mounted in the mounting groove 136 of the extension part 135, and the space between the sealing member 137 and the base part 131 performs the function of the purified water passage 132 described above. .

The ejection nozzle 140 is a nozzle for ejecting purified water or carbon dioxide gas into the storage container B, and is installed in the adapter 130 described above.

The ejection nozzle 140 extends from the mounting groove 136 to the lower side of the adapter 130 , and a hollow is formed in the ejection nozzle 140 so that carbon dioxide can flow.

The pressure control unit 150 is for automatically or manually controlling the pressure change in the storage container (B) generated as carbon dioxide or purified water is supplied, and includes a valve body (151), a switching valve (152), and a control unit ( C) and an automatic valve 153 and a manual valve 157 are included.

The valve body 151 has an exhaust passage 10 formed therein, and is installed so that the exhaust passage 10 and the purified water passage 132 communicate with each other. The valve body 151 is branched into a plurality of branches at the end of the base portion 131 , and a switching valve 152 , an automatic valve 153 , and a manual valve 157 to be described later are mounted at each branching end.

In addition, in response to the branching end of the valve body 151, the exhaust passage 10 formed therein is also branched into a plurality. Therefore, the carbon dioxide gas in the storage container (B) after being supplied may be exhausted to the outside through the exhaust passage 10 branched into a plurality. However, the opening and closing structure of the exhaust passage 10 will be described later.

FIG. 6 schematically shows a switching valve and a manual valve of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 .

6, the switching valve 152 is mounted on any one of the branched ends of the valve body 151, depending on the type of fluid supplied to the storage container (B) side exhaust path (10) A valve that opens or shuts off.

That is, when the purified water supply signal is transmitted from the user, the pressure is lowered by opening the exhaust path 10 so that a portion of the carbon dioxide gas in an undissolved state inside the storage container B is exhausted to the outside, but the carbon dioxide When the gas supply signal is transmitted, the exhaust passage 10 is blocked to prevent leakage of the supplied carbon dioxide to the outside.

The control unit (C) is connected to the selector valve 152, transmits a signal from the user to the selector valve and controls it.

Meanwhile, in the present embodiment, a method of opening and closing the exhaust passage 10 through a mechanical configuration may be applied as the switching valve 152 and the control unit C, an electromagnetic valve may be used, and various types of valves may be applied. can

7 is a cross-sectional view taken along VII - VII' of the valve module of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 3 .

Referring to FIG. 7 , the automatic valve 153 is a valve that automatically adjusts the pressure in the storage container B to be below a certain level, and is branched into several branches of the valve body 151 like the switching valve 152 . It is mounted on any one of the ends, and includes a cover member 154 , an opening/closing member 155 , and a first elastic member 156 .

The cover member 154 is coupled to the end of the exhaust passage 10 to support a first elastic member 156 to be described later, and a through hole is formed in the center.

The opening/closing member 155 is installed at a position spaced apart from the end of the exhaust passage 10 inward by a predetermined interval, and opens and closes the exhaust passage 10 in a manner of moving forward and backward along the exhaust passage 10 . On the other hand, a stepped jaw is formed in the exhaust passage 10 , and the opening/closing member 155 is provided with a pressing force by a first elastic member 156 to be described later and is in close contact with the stepped jaw, thereby limiting the movement range.

In addition, the opening and closing member 155 is composed of a front end having a relatively small diameter and a rear end having a larger diameter than the front end, and is recessed inside to form a space, but on the outer circumferential surface of the rear end, a discharge transport groove along the exhaust passage 10 (P) is formed and used as a movement path of carbon dioxide.

The first elastic member 156 is for elastically pressing the opening and closing member 155 from the cover member 154 , and is interposed between the cover member 154 and the opening and closing member 155 .

Meanwhile, the opening/closing timing of the exhaust passage 10 through the automatic valve 153 is controllable through the elastic force of the first elastic member 156 . That is, when it is desired to maintain the internal pressure of the storage container (B) at a high pressure, the first elastic member 156 having a relatively large elastic modulus is used, but when it is desired to maintain the internal pressure of the storage container at a relatively low pressure It is preferable to use the first elastic member 156 having a relatively small elastic modulus.

The manual valve 157 is a valve used to exhaust the carbon dioxide in the storage container B to the outside in conjunction with a direct operation of the user, unlike the automatic valve 153 described above, and an end branching from the valve body 151 . It is mounted on any one, and includes a valve pin 158 and a second elastic member (159).

On the other hand, the exhaust passage 10 of the valve body 151 to which the manual valve 157 is mounted has a shape in which the inner diameter becomes smaller toward the end.

The valve pin 158 is for opening and closing the exhaust passage 10 , is pressed from a second elastic member 159 to be described later, and is in close contact with the end of the exhaust passage 10 . The valve pin 158 is manufactured to have an outer diameter larger than the inner diameter of the exhaust passage 10 so as not to depart from the exhaust passage 10 to the outside, and an end thereof is located outside the exhaust passage 10 so that a user can directly operate it. are exposed

The second elastic member 159 is for elastically pressing the valve pin 158 to the outside of the exhaust passage 10 , and is interposed between the stepped jaw formed in the exhaust passage 10 and the second elastic member 159 . and presses the second elastic member 159 outward.

FIG. 8 schematically illustrates a button part of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 .

As shown in FIG. 8 , the button unit 160 is installed on the upper end of the frame unit 110 and opens and closes the carbon dioxide gas cylinder S in conjunction with the user's pressing operation, and includes a support frame 161 and It includes a contact surface portion 163 , a guide portion 164 , and a restoration portion 165 .

The support frame 161 is a frame for supporting the contact surface portion 163 to be described later, and is mounted on the vertical frame 111 .

On the other hand, the support frame 161 is provided with an accommodating space therein and is used as a space in which a lever manipulated when the contact surface portion 163 to be described later moves downward by the user is accommodated therein.

In addition, guide grooves 162 of a predetermined length along the direction of gravity are formed through both sides of the support frame 161 so that a guide part 164 to be described later can be accommodated.

The contact surface part 163 is a member exposed to the outside and directly affected by the user's manipulation, and is installed on the upper end of the support frame 161 .

The contact surface portion 163 presses the lever connected to the carbon dioxide cylinder (S) by moving to the receiving space in the support frame 161 by descending by the user's operation.

The guide portion 164 is for guiding the elevating movement path of the contact surface portion 163 , and is accommodated in the guide groove 162 while being connected to the contact surface portion 163 .

The restoration part 165 is a member for elastically supporting the contact surface part 163 upward so that the contact surface part 163 can return to its original position when the user releases the pressure applied to the contact surface part 163 . Accordingly, the contact surface portion 163 may be raised by the restoration portion 165 to return to the original position.

The operation unit 170 is connected to the switching valve 152 to operate whether the carbon dioxide gas in the storage container is discharged according to a supply target selected from purified water or carbon dioxide gas. provided in the form.

That is, by operating the operation unit 170 according to whether the user is supplied with purified water or carbon dioxide gas, the switching valve 152 opens or closes the exhaust passage 10 of the valve body 151, the storage container (B) It can change the environmental conditions inside.

The backflow prevention unit 180 is to block the reverse flow phenomenon in which purified water stored in the storage container B flows toward the carbon dioxide gas cylinder S through a hollow formed in the ejection nozzle 140, and a plate member 181 and a protruding member 182 .

The plate member 181 is a circular play interposed in the flow path 138 formed in the adapter 130 , and moves up and down according to the flow direction of the fluid in the adapter 130 to open and close the flow path 138 .

A plurality of curved grooves are formed on the circumferential surface of the plate member 181 , and the shape and number of the curved grooves correspond to the flow path 138 so that the plate member 181 can completely block the flow path 138 .

However, in this embodiment, the curved groove is formed on the position of the plate member 181 that does not overlap with the region where the protrusion member 182 to be described later is formed.

The protruding member 182 protrudes downward from the lower surface of the plate member 181 . In addition, the protrusion member 182 is formed in a stripe shape having a predetermined width to cross the plate member 181 , and a pair is formed in a ten-shape shape by crossing at the center of the plate member 181 . .

Meanwhile, the protruding member 182 may be integrally formed with the plate member 181 , or may be separately manufactured and coupled to each other.

Hereinafter, an operation of the valve assembly for supplying carbonated water having a backflow prevention function according to the present embodiment will be described.

First, a storage container (B) in which purified water or carbon dioxide is to be stored is mounted on the mounting groove (136). The storage container (B) is in close contact with the sealing member 137, the inner space of the storage container (B) is sealed from the outside air.

At the same time, when the user operates the operation unit 170 when the user wants to receive carbon dioxide gas, the control unit C operates the switching valve 152 to block the exhaust path 10 so that the carbon dioxide to be supplied is unintentionally supplied. Prevents exhaust to the outside.

As shown in FIG. 8 , when the user presses the contact surface portion 163 downward, the contact surface portion 163 descends by the movement path of the guide portion 164 , and in conjunction with this, the support frame 161 is a lever in the accommodating space. As (L) is operated, the carbon dioxide gas cylinder (S) is opened.

FIG. 9 schematically illustrates a carbon dioxide gas blowing operation through the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 .

As shown in FIG. 9 , the open carbon dioxide gas cylinder S supplies carbon dioxide gas to the carbon dioxide port 134 , and the carbon dioxide gas passes through the hollow of the ejection nozzle 140 connected to the adapter 130 . It is taken out through and stored in the storage container (B).

At this time, the backflow prevention unit 180 interposed on the flow path 138 of the adapter 130 descends by the supplied carbon dioxide gas, and the flow path 138 is opened so that the carbon dioxide gas flows smoothly toward the ejection nozzle 140 . can be transported

FIG. 10 schematically shows the operating principle of the automatic valve of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 .

On the other hand, even though the internal pressure of the storage container (B) continuously increases due to the carbon dioxide being blown out, the user does not release the pressure on the contact surface part, or the carbon dioxide gas extraction does not stop due to an internal defect, etc. inside the storage container (B) It becomes a problem when the pressure of is more than the set value.

In this case, as shown in FIG. 10 , the opening/closing member 155 is compressed by receiving a force in the opposite direction to the elastic force applied from the first elastic member 156 and then compressed outward.

As the opening and closing member 155 moves, a space is formed between the opening and closing member 155 and the exhaust passage 10 , and carbon dioxide flows along the discharge transfer groove P formed on the outer peripheral surface of the opening and closing member 155 , is finally exhausted to the outside.

That is, when the pressure in the storage container (B) is high pressure, the opening/closing member 155 releases the blockage of the exhaust passage 10 , and cannot be dissolved in the storage container B through the open exhaust passage 10 . As the carbon dioxide gas is discharged to the outside, the pressure in the storage container (B) is reduced.

When the internal pressure of the storage container B is reduced due to the discharge of carbon dioxide gas, when the elastic force applied from the first elastic member 156 is greater than the force applied to the opening and closing member 155 due to the pressure, the opening and closing member 155 is originally Return to the position to block the exhaust passage 10, and the discharge of carbon dioxide is stopped.

On the other hand, if the user stops the carbon dioxide gas supply and operates the operation unit 170 in the opposite direction when the user wants to receive purified water, the control unit C controls the switching valve 152 to open the exhaust passage 10, As the carbon dioxide gas is exhausted through the open exhaust path 10, the pressure in the storage container B is reduced to prevent a phenomenon in which the purified water supply is blocked due to the high gas pressure in advance.

11 schematically illustrates an operation of dispensing purified water through the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 .

At this time, as an arbitrary button is additionally manipulated, purified water flows from the purified water supply source into the purified water port 133 , and as shown in FIG. 11 , purified water flows along the outer surface of the ejection nozzle 140 through the purified water flow path 132 . It flows down and is supplied to the storage container (B).

FIG. 12 schematically illustrates an operation of disengaging the storage container from the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 , and FIG. It schematically shows the principle of operation of the manual valve when the storage container is disconnected.

Finally, a case in which the user uncouples the storage container (B) coupled to the adapter 130 will be described with reference to FIGS. 12 and 13 . When the user lifts the lower end of the storage container (B) upward while holding the storage container (B), the valve module 120 and the cover frame 114 together with the storage container (B) rotate upward around the hinge. do.

At this time, the end of the valve pin 158 moves in a direction close to the shaft 117 according to the rotation of the valve module 120, and the valve pin 158 contacts the shaft 117 by the continuous rotation operation, Finally, the valve pin 158 in contact with the shaft 117 is compressed into the exhaust passage.

As the valve pin 158 is compressed, the space between the valve pin and the exhaust path is opened, and a portion of the carbon dioxide gas inside the storage container (B) is exhausted to the outside and the pressure is reduced, so that the pressure of the storage container from the adapter 130 is reduced. Disassociation becomes easier.

FIG. 14 schematically illustrates a backflow prevention operation principle of the valve assembly for supplying carbonated water having a backflow prevention function of FIG. 1 .

On the other hand, when the carbon dioxide gas is consumed and the remaining amount decreases so that the internal pressure of the storage container (B) becomes greater than the internal gas pressure of the carbon dioxide gas cylinder (S), the purified water stored in the storage container (B) is transferred to the ejection nozzle 140 while the pressure distribution is reversed. ) flows backward through the hollow of the

However, as shown in FIG. 14 , the purified water passing through the ejection nozzle 140 presses the backflow preventing unit 180 , and the pressurized backflow preventing unit 180 rises to completely block the flow path 138 . It fundamentally blocks the flow of purified water into the adapter 130 .

As the flow path 138 is blocked by the backflow prevention unit 180, it is possible to prevent purified water from flowing into the carbon dioxide gas cylinder S in a reduced internal pressure state, and when the carbon dioxide gas cylinder S is separated It is also possible to prevent the leakage of purified water to the outside.

The scope of the present invention is not limited to the above-described embodiments, but may be implemented in various forms of embodiments within the scope of the appended claims. Without departing from the gist of the present invention claimed in the claims, it is considered within the scope of the description of the claims of the present invention to various extents that can be modified by any person skilled in the art to which the invention pertains.

110: frame part 120: valve module
130: adapter 140: ejection nozzle
150: pressure control unit 152: switching valve
153: automatic valve 157: manual valve
160: button unit 170: operation unit
180: backflow prevention unit

Claims (14)

a valve module connected to a carbon dioxide gas cylinder and a purified water supply source to supply at least one of carbon dioxide gas or purified water to a user;
a button unit for opening and closing the carbon dioxide gas cylinder in conjunction with the user's operation;
and a backflow prevention unit provided in the valve module to allow only one direction flow of the fluid;
The valve module may include: an adapter in which a mounting groove is formed so that the storage container can be mounted; and a blowout nozzle connected to the adapter to form a hollow so as to supply carbon dioxide to the storage container, and supply purified water along the outer circumferential surface;
The backflow preventing part is disposed between the adapter and the ejection nozzle, the plate member is configured to be able to move up and down in the flow path formed in the adapter, the plate member having a plurality of curved grooves formed along the circumferential surface; and a protrusion member protruding from the plate member toward the ejection nozzle. delete According to claim 1,
The backflow preventing part is pressurized by the fluid flowing from the adapter toward the blowout nozzle to open the flow path, but is pressurized by the fluid flowing from the hollow of the blowout nozzle toward the adapter to block the flow path. Valve assembly for carbonated water supply with preventive function. delete According to claim 1,
A valve assembly for supplying carbonated water having a backflow preventing function, wherein a pair of the protruding members are formed to cross each other at the center of the plate member. 6. The method of any one of claims 1, 3 and 5,
The valve assembly for supplying carbonated water having a backflow prevention function, characterized in that the backflow prevention part is made of a polypropylene material. 7. The method of claim 6,
The valve module is
The valve assembly for supplying carbonated water with a backflow prevention function, characterized in that it further comprises a pressure adjusting unit for adjusting the pressure in the storage container mounted on the adapter. 8. The method of claim 7,
The pressure control unit,
a valve body mounted on the adapter and forming an exhaust passage for communicating the space in the storage container with external air; When carbon dioxide gas is supplied through the outlet nozzle, the carbon dioxide gas is blocked from being exhausted through the exhaust passage, but when purified water is supplied through the ejection nozzle, a switching valve that opens the exhaust passage. A valve assembly for supplying carbonated water with a backflow prevention function. 9. The method of claim 8,
The pressure control unit,
The valve assembly for supplying carbonated water with a backflow prevention function, further comprising a manual valve for selectively opening the exhaust path by a user's operation to exhaust the carbon dioxide gas in the storage container to the outside. 10. The method of claim 9,
The end portion of the exhaust passage is formed such that the inner diameter decreases toward the outside,
The manual valve is
a valve pin mounted at the end of the exhaust passage; and an elastic member for applying an elastic force in a direction in which the valve pin is pressed by the carbon dioxide gas inside the adapter so that the valve pin is in close contact with the end of the exhaust passage. . 11. The method of claim 10,
vertical frame; a cover frame that is hingedly rotatably installed from the vertical frame, and on which the valve module is mounted; Further comprising a frame portion having a; shaft fixed to the vertical frame at a position facing the valve pin,
The valve assembly for supplying carbonated water with a backflow prevention function, characterized in that when the hinge of the cover frame is rotated, the valve pin is pressed while in contact with the shaft. 12. The method of claim 11,
The shaft is mounted with one surface extending from the vertical frame toward the valve pin, and the other surface exposed to the opposite surface on which the valve pin is installed based on the vertical frame,
The cover frame may include a body on which the valve module is mounted; and a leg portion extending from the body portion to pass through the vertical frame and hinge-rotatably installed on the shaft. 11. The method of claim 10,
The pressure control unit provides carbonated water with a backflow prevention function, characterized in that it further comprises an automatic valve for selectively opening the exhaust passage to exhaust carbon dioxide gas in the storage container when the pressure in the storage container is equal to or greater than a set value. for valve assembly. 12. The method of claim 11,
The button part,
a contact part installed on the upper part of the frame part so that the user can contact and press it; a guide for guiding the elevating path of the contact part; and a restoration unit that applies an elastic force so that the contact unit can return to its original position in a state in which the user's pressing force is released.

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