KR20160006959A - 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 capable of preventing flowing backward. The valve assembly for supplying carbonated water capable of preventing flowing backward according to the present invention comprises: a valve module which is coupled to a carbon dioxide gas cylinder and a purified water supply source for supplying at least one of carbon dioxide gas or purified water into a storage container; a button unit which opens and closes the carbon dioxide gas cylinder interworking with user′s movement; and a flowing backward prevention unit which is placed in the valve module, and allows only one direction flow to fluid. Accordingly, provided is the valve assembly for supplying carbonated water capable of preventing flowing backward of the purified water stored in the storage container.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a valve assembly for supplying carbonated water having a backflow prevention function,

BACKGROUND OF THE INVENTION 1. Field of the Invention 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 gas or purified water to a user.

In general, a water purifier is a device that allows foreign substances contained in external raw water to be filtered and consumed. In recent years, interest in drinking healthy water has risen beyond simply drinking filtered water.

Particularly, as the effect of carbonated water becomes known, various companies have launched a carbonated water producing device in which carbon dioxide gas is injected into a container filled with water.

This carbonated water producing apparatus produces carbonated water in such a manner that carbonic acid gas is supplied from a carbonic acid gas pressure vessel into which carbon dioxide gas is compressed and stored.

However, in the case of the existing carbonated water producing apparatus, the apparatus for supplying drinking water is not included, and carbon dioxide gas is provided solely, so that drinking water must be secured first through a separate water purifier.

In particular, when the carbonic acid gas is supplied, the pressure inside the storage container rises excessively, and the problems such as the reverse flow of the purified water in the storage container or the carbonic acid gas not being supplied smoothly frequently occur.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a carbonated water supply valve assembly having a backflow prevention function that can prevent the reverse flow of purified water stored in a storage container in advance.

According to the present invention, the above objects can be accomplished by a valve module comprising: a valve module connected to a carbonic acid gas cylinder and a purified water supply source so as to supply at least one of carbonic acid gas or purified water to a storage container; A button unit for opening and closing the carbon dioxide gas cylinder in cooperation with a user's operation; A backflow preventing portion provided in the valve module and allowing only one directional flow of the fluid; The valve assembly for supplying carbonated water with the backflow prevention function according to the present invention is characterized in that the backflow prevention function is provided.

The valve module may further include: an adapter having a mounting groove formed therein for mounting the storage container; And an extraction nozzle connected to the adapter to supply a carbonic acid gas to the storage container side and forming a hollow space for supplying purified water along an outer circumferential surface of the reservoir, wherein the backflow prevention part is interposed between the adapter and the extraction nozzle .

The adapter is formed with a flow path so as to be able to ascend and descend with the backflow prevention portion provided thereon. The backflow prevention portion is pressed by the fluid flowing from the adapter toward the extraction nozzle side to open the flow path, So that it can be pressurized by the fluid flowing to the adapter side to shut off the flow path.

The backflow prevention portion may include: a plate member having a plurality of curved grooves formed along a circumferential surface thereof; And a protruding member protruding from the plate member toward the take-out nozzle.

Further, the projecting members may be formed such that a pair of the projecting members cross each other at the center of the plate member.

In addition, the backflow prevention portion may be made of polypropylene.

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

The pressure regulating unit may include: a valve body mounted on the adapter, the valve body forming an exhaust passage communicating a space in the storage container with outside air; And a switching valve for blocking the exhaust of carbon dioxide gas through the exhaust passage when carbon dioxide is supplied through the extraction nozzle and opening the exhaust passage when purified water is supplied through the extraction nozzle have.

The pressure regulator may further include a manual valve for selectively exhausting the carbon dioxide gas in the storage container by selectively opening the exhaust passage by a user's operation.

Further, the end of the exhaust passage is formed so that its inner diameter decreases toward the outside, and the manual valve includes: a valve pin mounted on an end portion of the exhaust passage; And an elastic member that applies an elastic force along a direction in which the valve pin is pressed by the carbon dioxide inside the adapter so as to be in close contact with the end portion of the exhaust passage.

Also, a vertical frame; A cover frame which is hingedly rotatable from the vertical frame, on which the valve module is mounted; And a shaft fixed to the vertical frame at a position facing the valve pin, wherein the valve pin can be pressed while being in contact with the shaft when the cover frame is hinged.

The shaft is mounted with one surface extending from the vertical frame toward the valve pin side and the other surface exposed to the opposite surface on which the valve pin is mounted with respect to the vertical frame, A body part to be mounted; And a leg portion extending from the body portion to penetrate through the vertical frame, the leg portion being hinge-rotatably mounted on the shaft.

The pressure regulator may further include 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 predetermined value.

The button portion may include a contact portion provided on an upper portion of the frame portion to allow the user to contact and press the button portion; A guiding portion for guiding the ascending / descending path of the contact portion; And a restoring unit that applies an elastic force so that the contact unit can return to the home position in a state in which the pressing force of the user is released.

According to the present invention, it is possible to prevent the reverse flow of the purified water stored in the storage container, thereby preventing the water from flowing out into the carbon dioxide gas cylinder, or preventing the water from being discharged to the outside when the carbon dioxide gas cylinder is replaced There is provided a valve assembly for supplying carbonic acid water.

There is also provided a carbonated water supply valve assembly having a backflow prevention function capable of receiving carbonated water through a single assembly by allowing the user to receive carbonic acid gas or purified water.

In addition, safety accidents can be prevented in advance by automatically adjusting the storage container pressure.

In addition, after the user completes the supply of the carbonated water, a portion of the carbonic acid gas is discharged during the collection of the storage container, and the pressure inside the storage container is adjusted so that the user can safely collect the storage container to drink carbonated water.

1 is a perspective view of a carbonated water supply valve assembly having a backflow prevention function according to an embodiment of the present invention,
2 is a bottom perspective view of a carbonated water supply valve assembly having a backflow prevention function of FIG. 1,
FIG. 3 is a schematic perspective view of a valve module of a carbonated water supply valve assembly having a backflow prevention function of FIG. 1,
FIG. 4 is a schematic bottom perspective view of the valve module of the carbonated water supply valve assembly having the backflow prevention function of FIG. 1, and FIG.
FIG. 5 is a cross-sectional view of the valve module of the carbonated water supply valve assembly with the backflow prevention function of FIG. 3 taken along line V - V '
FIG. 6 is a schematic view showing a switching valve and a manual valve of a carbonated water supply valve assembly having a backflow prevention function of FIG. 1,
FIG. 7 is a cross-sectional view of a valve module for a carbonated water supply valve having a backflow prevention function of FIG. 3 cut along a valve module VII-VII '
FIG. 8 is a schematic view of a button portion of a carbonated water supply valve assembly having a backflow prevention function of FIG. 1,
FIG. 9 is a schematic view showing a carbonic acid gas extraction operation through the carbonic acid water supply valve assembly having the backflow prevention function of FIG. 1,
FIG. 10 is a schematic view showing the operation principle of the automatic valve of the carbonated water supply valve assembly having the backflow prevention function of FIG. 1,
FIG. 11 schematically shows an operation for removing water from a water supply valve assembly having a backflow prevention function shown in FIG. 1,
12 schematically illustrates the operation of disengaging the storage container from the carbonated water supply valve assembly having the backflow prevention function of FIG. 1,
13 schematically illustrates the operation principle of the manual valve when the storage container is unmounted from the carbonated water supply valve assembly having the backflow prevention function of FIG. 12,
FIG. 14 is a schematic view showing the principle of the backflow prevention operation of the carbonated water supply valve assembly having the backflow prevention function of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

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

1 and 2, a carbonated water supply valve assembly 100 having a backflow prevention function according to an embodiment of the present invention provides carbon dioxide and drinking water supplied from a predetermined supply source to the user smoothly And includes a frame 110, a valve module 120, a button unit 160, an operating unit 170, and a backflow prevention unit 180.

The frame unit 110 includes a vertical frame 111, a cover frame 114, and a shaft 117. The frame unit 110 includes a vertical frame 111, a cover frame 114,

The vertical frame 111 is a flat plate frame to which a cover frame 114 and a shaft 117 to be described later are mounted and a pair of through holes 113 for mounting a cover frame 114, And an insertion hole 112 is formed at the center so that a shaft 117 described later can be mounted.

The cover frame 114 is mounted on the vertical frame 111 and is mounted on the valve module 120 and includes a body part 115 and a leg part 116.

The body part 115 is installed so as to extend in a direction perpendicular to the cover frame 114, and a receiving space for mounting the valve module 120 is formed.

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

On the other hand, the leg portion 116 passing through the through hole 113 is mounted on the shaft 117 to be described later so as to be hinged. Thus, the cover frame 114 rotates about the shaft 117 by a predetermined radius, and the through hole 113 restricts the rotation radius of the leg portion 116.

The shaft 117 functions to adjust the pressure in the storage container B by pressing one end of the manual valve 157 to be described later and the other end functions as a center of rotation of the cover frame 114 , And 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 positioned on different surfaces with respect to the vertical frame 111, respectively.

An end of the shaft 117 on the side where the body part 115 is located with respect to the vertical frame 111 faces the valve pin 158 to be described later, The end surface of the shaft 117 is inclined so that it can be smoothly pressed after the end contact of the shaft 117 is completed.

The end of the shaft 117 on which the leg portion 116 is located with respect to the vertical frame 111 is disposed in contact with the leg portion 116 in a space between the pair of spaced apart leg portions 116, A pair of leg portions 116 are rotatably installed on both sides of the shaft 117.

According to the structure of the frame 110 described above, the end portion of the cover frame 114 is rotatably provided around the shaft 117, and the rotation radius of the cover frame 114 is And the length of the through-hole 113 to be formed is limited by the square dimension.

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

3 to 5, the valve module 120 is connected to a carbonic acid gas cylinder S in which compressed carbon dioxide is stored and a purified water source in which drinking water is stored, And includes a adapter 130, a blow-off nozzle 140, and a pressure regulator 150. The adapter 130 includes a suction nozzle 140,

The adapter 130 is for supplying purified water and carbon dioxide gas from the purified water port 133 and the carbonic acid gas port 134 to the storage container B through the extraction nozzle 140 to be described later, And an extension 135 and a sealing member 137. [

On the upper surface of the base part 131, a purified water port 133 and a carbon dioxide gas port 134 are formed at different positions, respectively, and each port is connected to a purified water supply source and a carbon dioxide gas cylinder S, respectively. In this embodiment, the base 131 is a disc, but the shape of the base 131 is not limited thereto.

On the other hand, a purified water flow path 132 is formed inside the base 131 to connect the water purification port 133 and the extraction nozzle 140, which will be described later. The purified water flow path 132 functions as a guide path for guiding the purified water supplied from the purified water port 133 to the outer surface side of the extraction nozzle 140. [

The purified water flow path 132 is a path for guiding the purified water supplied from the purified water port 133 toward the outer surface of the extraction nozzle 140. The carbon dioxide gas in the storage tank B is connected to the purified water flow path 132 And is exhausted to the outside through the exhaust path (10).

A flow path 138 is formed at an upper end of a region where the take-out nozzle 140 is mounted, so that the backflow prevention portion 180, which will be described later, can be lifted and lowered.

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

The sealing member 137 is a member for sealing the interior of the storage container B mounted on the extended portion 135 from the outside so that the supplied carbon dioxide gas does not leak to the outside. On the other hand, the sealing member 137 is mounted in the mounting groove 136 of the extending portion 135, and the space between the sealing member 137 and the base portion 131 performs the function of the above-mentioned constant flow path 132 .

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

The extraction nozzle 140 is extended from the mounting groove 136 to a lower side of the adapter 130 and a hollow is formed in the extraction nozzle 140 to allow carbon dioxide to flow.

The pressure regulator 150 is for automatically or manually controlling a change in pressure in the storage container B caused by the supply of carbon dioxide gas or purified water. The pressure regulator 150 includes a valve body 151, a switch valve 152, C, an automatic valve 153 and a manual valve 157. [

The valve body 151 is provided with an exhaust passage 10 therein and is installed such that the exhaust passage 10 and the purified water passage 132 can communicate with each other. The valve body 151 is divided into a plurality of branches at the end of the base portion 131. A switch valve 152, an automatic valve 153 and a manual valve 157, which will be described later,

In addition, the exhaust passage 10 formed in the valve body 151 corresponds to the branched end, and is also branched into a plurality of exhaust passages. Therefore, the carbonic acid gas in the storage container B after being supplied can 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 is a schematic view showing a switching valve and a manual valve of the carbonated water supply valve assembly having the 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 and is connected to the exhaust passage 10 according to the kind of fluid supplied to the storage container B, As shown in Fig.

That is, when the purified water supply signal is transmitted from the user, the operation of lowering the pressure is performed by opening the exhaust passage 10 to exhaust a part of the dissolved carbonic acid in the storage container B to the outside, When the gas supply signal is transmitted, the exhaust passage 10 is blocked to prevent leakage of the supplied carbon dioxide gas to the outside.

The control unit C is connected to the switch valve 152 and transmits a signal from the user to the switch valve and controls the switch valve.

Meanwhile, in the present embodiment, the switching valve 152 and the control unit C may be configured to open or close the exhaust passage 10 through a mechanical structure, or an electromagnetic valve may be used, and various types of valves may be used .

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

7, the automatic valve 153 is a valve that automatically regulates the pressure in the storage container B to a predetermined level or less, and is branched into several branches of the valve body 151, like the switch valve 152 And includes a cover member 154, an opening and closing member 155, and a first elastic member 156.

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

The opening and closing member 155 is installed at a position spaced inwardly from the terminating end of the exhaust passage 10 by a predetermined distance and opens and closes the exhaust passage 10 in such a manner as to move forward and backward along the exhaust passage 10. On the other hand, a stepped step is formed in the exhaust passage 10, and the opening and closing member 155 is pressed against the stepped portion by the first elastic member 156, which will be described later, to thereby restrict the range of movement.

The opening and closing member 155 is formed by a front end portion having a relatively small diameter and a rear end portion having a diameter larger than that of the front end portion and is recessed to form a space. (P) is formed and used as a path of carbon dioxide gas.

The first elastic member 156 elastically presses 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.

On the other hand, the opening and closing timing of the exhaust passage 10 through the automatic valve 153 can be controlled through the elastic force of the first elastic member 156. That is, when the internal pressure of the storage container B is to be maintained at a high pressure, the first elastic member 156 having a relatively high elastic modulus is used. In the case where the internal pressure of the storage container is to be maintained at a relatively low pressure It is preferable to use the first elastic member 156 having a relatively small elastic modulus.

Unlike the automatic valve 153 described above, the manual valve 157 is a valve used for exhausting carbon dioxide in the storage container B to the outside in cooperation with a direct operation of the user, 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 inside diameter becomes smaller toward the longitudinal end portion.

The valve pin 158 is for opening and closing the exhaust passage 10 and is pressed from the second elastic member 159 to be described later and is brought into 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 be released to the outside from the exhaust passage 10 and the end portion is provided outside the exhaust passage 10 Exposed.

The second elastic member 159 elastically presses the valve pin 158 to the outside of the exhaust passage 10 and is disposed between the stepped step formed in the exhaust passage 10 and the second elastic member 159 And presses the second elastic member 159 in the outward direction.

FIG. 8 is a schematic view of a button portion of a carbonated water supply valve assembly having a backflow prevention function of FIG. 1. FIG.

8, the button unit 160 is installed at the upper end of the frame unit 110 to open and close the carbonic acid gas cylinder S in cooperation with the user's pressing operation. The button unit 160 includes a support frame 161, And includes a contact surface portion 163, a guide portion 164, and a restoration portion 165.

The support frame 161 is mounted on an upper portion of the vertical frame 111 as a frame for supporting a contact surface portion 163 to be described later.

On the other hand, the support frame 161 is used as a space in which a lever, which is provided when the user touches the contact surface portion 163, moves downward.

Guide grooves 162 having a predetermined length are formed through both sides of the support frame 161 so as to accommodate the guide portions 164 described later along the gravity direction.

The contact surface portion 163 is a member exposed to the outside and directly influenced by the operation of the user, and is provided at the upper end of the support frame 161.

The contact surface portion 163 is lowered by a user's operation and moves to the receiving space in the support frame 161 to press the lever connected to the carbonic acid gas cylinder S. [

The guide portion 164 guides the lifting and moving 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 restoring part 165 is a member for elastically supporting the contact surface part 163 upward so that the contact surface part 163 can return to the original position when the user releases the pressure applied to the contact surface part 163. Therefore, the contact surface portion 163 can be raised by the restoring portion 165 and returned to the original position.

The control unit 170 is connected to the switching valve 152 to control whether or not carbon dioxide in the storage container is discharged according to a selected supply object such as purified water or carbon dioxide. .

That is, the switching valve 152 operates the exhaust passage 10 of the valve body 151 to open or close the storage container B by operating the operating section 170 depending on whether the user to be supplied is the purified water or the carbonic acid gas, It is possible to change the environmental conditions within the apparatus.

The backflow prevention unit 180 serves to prevent reverse flow of the purified water stored in the storage vessel B through the hollow formed in the extraction nozzle 140 toward the carbon dioxide gas cylinder S, (181) and a protruding member (182).

The plate member 181 is a circular plate 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 so that the shape and the number of the curved grooves correspond to the flow paths 138 so that the plate member 181 can completely block the flow paths 138.

However, in this embodiment, the curved groove is formed on the position of the plate member 181 which is not overlapped with the region where the projecting member 182 is formed, which will be described later.

The protruding member 182 protrudes downward from the lower surface of the plate member 181. Further, the projecting members 182 are formed in a shape of traversing the plate member 181 in a stripe shape having a predetermined width, and a pair of the projecting members 182 is formed in a ten-sided shape at the center of the plate member 181 .

On the other hand, the projecting members 182 may be integrally formed with the plate member 181, or they may be separately manufactured and joined to each other.

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

First, the storage container B to which the purified water or the carbonic acid gas is to be stored is mounted on the mounting groove 136. The storage container B is in close contact with the sealing member 137, and the inner space of the storage container B is sealed from the outside air.

At the same time, when the user operates the operating unit 170 in order to receive the carbonic acid gas, the control unit C operates the switching valve 152 to shut off the exhaust passage 10, Thereby preventing exhausting to the outside.

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, The carbon dioxide gas cylinder S is opened as the cylinder L is operated.

FIG. 9 is a schematic view illustrating a carbonic acid gas extraction operation through the carbonic acid water supply valve assembly having the backflow prevention function of FIG. 1. FIG.

9, the opened carbonic acid gas cylinder S supplies carbonic acid gas to the carbonic acid gas port 134 side, and the carbonic acid gas flows into the hollow of the extraction nozzle 140 connected to the adapter 130 And stored in the storage container B.

At this time, the backflow prevention part 180 interposed on the flow path 138 of the adapter 130 is lowered by the supplied carbon dioxide gas, and the flow path 138 is opened so that the carbon dioxide gas flows smoothly toward the extraction nozzle 140 side Lt; / RTI >

10 is a schematic view illustrating the operation principle of the automatic valve of the carbonated water supply valve assembly having the backflow prevention function of FIG.

On the other hand, because the carbon dioxide gas taken out continuously increases the internal pressure of the storage container B, the user does not release the pressure on the contact surface portion, or the carbon dioxide gas does not stop taking out due to internal defects, The pressure of the refrigerant becomes a set value or more.

In this case, as shown in Fig. 10, the opening and closing member 155 compresses in the direction opposite to the elastic force applied from the first elastic member 156 and compresses in the outward direction.

A space is formed between the opening and closing member 155 and the exhaust passage 10 while the opening and closing member 155 moves and the carbonic acid gas flows along the discharge conveyance groove P formed on the outer peripheral surface of the opening and closing member 155 And finally exhausted to the outside.

That is, when the pressure in the storage container B is high, the opening / closing member 155 releases the shutoff of the exhaust passage 10, and is not dissolved in the storage container B through the open exhaust passage 10 The carbon dioxide gas is discharged to the outside, whereby the pressure in the storage container (B) decreases.

When the inner pressure of the storage container B is decreased due to the discharge of the carbonic acid gas, the elastic force applied from the first elastic member 156 becomes greater than the force applied to the opening / closing member 155 due to the pressure, The exhaust passage 10 is shut off and the discharge of the carbon dioxide gas is stopped.

On the other hand, when the user operates the operation portion 170 in the opposite direction when the user stops supplying the carbonic acid gas and wants to receive the purified water, the control portion C controls the switching valve 152 to open the exhaust passage 10, The carbon dioxide gas is exhausted through the open exhaust passage 10 to reduce the pressure in the storage container B to prevent the disturbance of the purified water supply due to the high gas pressure.

FIG. 11 is a schematic view showing an operation of removing water through a carbonated water supply valve assembly having the backflow prevention function of FIG. 1;

11, the purified water flows along the outer surface of the extraction nozzle 140 through the purified water flow path 132, and the purified water flows along the outer surface of the extraction nozzle 140, And is supplied to the storage container (B).

FIG. 12 is a schematic view illustrating an operation of disengaging the storage container from the carbonated water supply valve assembly having the backflow prevention function of FIG. 1, and FIG. 13 is a cross- The operation principle of the manual valve is shown.

Finally, referring to Figs. 12 and 13, a case where the user unmates the storage container B coupled to the adapter 130 will be described. The user lifts the lower end of the storage container B upward while holding the storage container B so that the valve module 120 and the cover frame 114 together with the storage container B rotate upward with respect to the hinge do.

At this time, the end of the valve pin 158 moves in the direction close to the shaft 117 in accordance with 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 passage is opened, and part of the carbonic acid gas in the storage container B is exhausted to the outside, Disengagement becomes easier.

FIG. 14 is a schematic view showing the principle of the backflow prevention operation of the carbonated water supply valve assembly having the backflow prevention function of FIG.

On the other hand, when the remaining amount of the carbonic acid gas consumed decreases and the internal pressure of the storage container B becomes larger than the internal gas pressure of the carbonic acid gas cylinder S, the pressure distribution is reversed and the purified water stored in the storage container B is returned to the extraction nozzle 140 And the air flows backward along the hollow.

14, the purified water that has passed through the extraction nozzle 140 pressurizes the backflow prevention part 180, and the pressured backflow prevention part 180 rises to completely block the flow path 138 Thereby preventing the purified water from flowing into the adapter 130 at the source.

It is possible to prevent the flow of the purified water into the carbon dioxide gas cylinder S in which the internal pressure is reduced as the flow path 138 is blocked by the backflow prevention part 180, It is also possible to prevent the water from leaking to the outside.

The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

110: frame part 120: valve module
130: adapter 140: extraction nozzle
150: pressure regulator 152: switching valve
153: Automatic valve 157: Manual valve
160: button unit 170:
180:

Claims (14)

A valve module connected to the carbonic acid gas cylinder and the purified water supply source so as to supply the user with at least one of carbon dioxide gas or purified water;
A button unit for opening and closing the carbon dioxide gas cylinder in cooperation with a user's operation;
A backflow preventing portion provided in the valve module and allowing only one directional flow of the fluid; And a backflow prevention valve for preventing backflow of the carbonated water. The method according to claim 1,
Wherein the valve module comprises: an adapter having a mounting groove formed therein for mounting the storage container; And an extraction nozzle connected to the adapter to form a hollow to supply carbon dioxide gas to the storage container side, the purified water being supplied along an outer circumferential surface,
And the backflow prevention portion is interposed between the adapter and the blowout nozzle. 3. The method of claim 2,
Wherein the adapter is provided with a flow path so that the backflow prevention portion is provided and can be raised and lowered,
Wherein the backflow prevention portion is pressurized by the fluid flowing from the adapter to the extraction nozzle side to open the flow passage and pressurized by the fluid flowing from the hollow of the extraction nozzle toward the adapter side to shut off the flow passage. Wherein the valve body is provided with a valve body. The method of claim 3,
The backflow prevention portion includes:
A plate member having a plurality of curved grooves formed along a circumferential surface thereof; And a protruding member protruding from the plate member toward the take-out nozzle. 5. The method of claim 4,
Wherein the protruding members are formed such that a pair of the protruding members cross each other at the center of the plate member. 6. The method according to any one of claims 3 to 5,
Wherein the backflow prevention part is made of a polypropylene material. The method according to claim 6,
Wherein the valve module comprises:
Further comprising a pressure regulator for regulating the pressure in the storage container mounted on the adapter. 8. The method of claim 7,
The pressure regulator may include:
A valve body mounted on the adapter and defining an exhaust passage communicating a space in the storage container with outside air; And a switching valve for blocking carbon dioxide gas from being exhausted through the exhaust passage when carbon dioxide is supplied through the extraction nozzle and for opening the exhaust passage when purified water is supplied through the extraction nozzle Wherein the valve body is provided with a backflow prevention function. 9. The method of claim 8,
The pressure regulator may include:
Further comprising a manual valve for discharging the carbon dioxide gas in the storage container to the outside by selectively opening the exhaust passage by an operation of the user. 10. The method of claim 9,
The end portion of the exhaust passage is formed so that the inner diameter decreases toward the outer side,
The manual valve includes:
A valve pin mounted on an end 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 inside the adapter so as to be in close contact with the end portion of the exhaust passage. . 11. The method of claim 10,
Vertical frame; A cover frame which is hingedly rotatable from the vertical frame, on which the valve module is mounted; And a shaft fixed to the vertical frame at a position facing the valve pin,
Wherein the valve pin is pressed while being in contact with the shaft when the hinge of the cover frame is rotated. 12. The method of claim 11,
Wherein the shaft extends from the vertical frame to the valve pin side and the other surface is mounted on the opposite side of the valve frame from the vertical frame,
Wherein the cover frame comprises: a body portion on which the valve module is mounted; And a leg portion extending from the body portion to penetrate through the vertical frame and hingedly mounted on the shaft. 11. The method of claim 10,
Wherein the pressure regulator 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 predetermined value. Valve assembly. 12. The method of claim 11,
The button unit includes:
A contact portion provided on an upper portion of the frame portion to urge the user in contact; A guiding portion for guiding the ascending / descending path of the contact portion; And a restoring unit for applying an elastic force so that the abutting portion can return to the original position when the pressing force of the user is released.

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