KR200328199Y1 - Containing valve for LPG - Google Patents

Abstract

Disclosed is a liquefied petroleum gas container valve capable of preventing suicide, arson and demonstration by leaking gas arbitrarily from an LPG container or gas appliance. The liquefied petroleum gas container valve according to the present invention supplies the gas filled in the LPG container from the connection hole on one side to the gas appliance side through the gas flow hole and the gas discharge hole, the safety device is formed on the opposite side of the connection hole, the gas flow In the liquefied petroleum gas container valve equipped with a handle having a blocking member for selectively opening and closing the upper end of the gas discharge hole on the opposite side of the ball, the blocking member has a built-in permanent magnet, the gas flow hole inside the gas leakage passage It is formed in the central portion is formed with a vertical rod formed with a plurality of engaging grooves, and integrally mounted on the upper end of the vertical rod and the upper gas leakage passage communicating with the internal gas leakage passage to communicate with the outside of the magnetic force and gas discharge hole of the permanent magnet, The head is moved up and down in the gas discharge hole together with the vertical rod by the lower pressure difference, and is integrally mounted on the lower side of the head to The valve body for selectively opening and closing the lower end of the gas discharge hole according to the movement, the micro gas inlet which is integrally mounted at the lower end of the vertical rod and is disposed inside the LPG container to introduce a small amount of gas into the internal gas leakage passage, The present invention provides a liquefied petroleum gas container valve which is fixed to a lower end of a gas flow hole and equipped with a gas shutoff device having a fixture for supporting and guiding a vertical rod.

Description

Liquefied petroleum gas container valve {Containing valve for LPG}

The present invention relates to a liquefied petroleum gas (LPG) container valve, and more particularly to a liquefied petroleum gas container valve that can prevent the suicide, fire and protest by leaking the gas in the LPG container or gas machine arbitrarily .

In general, LPG is obtained in the process of refining crude oil. Propane and butane are main components, and liquefied by adding propylene and butylene to it. LPG is a flammable gas that is lighter than water and heavier than air and is colorless, odorless and tasteless. LPG is heavier than air, so when a gas leak occurs, it does not spread to the air but stays in the lower part of the leaked place.

LPG-filled container valves, where there is a risk of explosion accidents, have a safety device that ejects gas to the outside until the gas pressure drops to the specified pressure when the LPG is rapidly increased due to the heating of the LPG container due to a fire. It is prescribed to have. Such a conventional LPG container valve, as shown in Figure 1, the lower portion of the valve body 10 is formed with a screw portion 12 for screwing the LPG container (not shown), one side, such as a gas stove or boiler A connection hole 14 to which a vinyl hose (not shown) for supplying gas to the gas appliance is connected is formed. On the opposite side of the connecting hole 14, a safety device 16 is provided for ejecting the gas to the outside when the gas pressure of the LPG container is more than the specified pressure.

The upper portion of the valve body 10, the handle 18 is rotated to open and close the flow of gas is formed by screwing the upper inner side of the valve body 10, the lower portion of the handle 18 of the rotation of the handle 18 As it rises and falls, the blocking member 20 for opening and blocking the gas flowing from the LPG container to the connection hole 14 is formed to be in close contact with the inside of the valve body 10.

In the conventional LPG container valve formed as described above, when the user rotates the upper handle 18 counterclockwise to use gas, the blocking member 20 formed at the lower portion of the handle 18 rises, and the inside of the container and the gas appliance The connection hole 14 to which the vinyl hose for supplying gas is connected is opened, and the LPG inside the container is discharged to the vinyl hose through the gas discharge hole 24.

In addition, the safety device 16 formed on the opposite side of the connecting hole 14 is normally closed, but when the gas pressure inside the container is exceeded by a predetermined pressure due to the heating of the LPG container due to a fire or the like, the inlet is opened. To eject the gas to the outside until the gas pressure in the gas cylinder becomes lower than the specified pressure.

However, there is a problem that can not cope with various gas accidents only with the safety device formed on the LPG container valve. For example, a transient gas shutoff device is required to automatically shut off a gas exceeding a specified amount due to breakage or intentional cutting of the vinyl hose connecting the LPG container and the gas appliance. For the purpose of suicide or fire prevention, there is a need for a shutoff device that can prevent gas leaks by opening the valve arbitrarily and opening the valve of the LPG container at the demonstration site and preventing fire and demonstration.

The present invention has been devised in view of the above necessity, and is formed inside a normal valve body, and its structure is simple, making it easy to manufacture, and designed to block gas only when a hose connected to a gas machine is normally connected. The object is to provide a liquefied petroleum gas container valve in which the apparatus is integrated.

1 is a view showing a liquefied petroleum gas container valve according to the prior art,

2 is a cross-sectional view showing a liquefied petroleum gas container valve according to the present invention,

3 is an exploded cross-sectional view showing the gas shutoff device shown in FIG.

4a, 4b, 4c, 4d is a view showing a state of use of the liquefied petroleum gas container valve according to the present invention.

Explanation of symbols on the main parts of the drawing

100: liquefied petroleum gas container valve 110: permanent magnet

200: gas shutoff device 210: vertical rod

212: internal gas leakage path 214: jamming groove

220: head 222: upper gas leakage

224: push pin 228: first elastic spring

230: valve body 240: fine gas inlet

242: sintered metal 244: teflon

246: filter network 250: fixture

252: sliding ball 254: seating groove

256: slope 258: locking ring

260: gas through hole 270: second elastic spring

In order to achieve the above object, the present invention,

The gas filled in the LPG container is supplied from the connection hole on one side to the gas equipment through the gas flow hole and the gas discharge hole, and a safety device is formed on the opposite side of the connection hole, and the upper end of the gas discharge hole is provided on the opposite side of the gas flow hole. In the liquefied petroleum gas container valve equipped with a handle having a blocking member for selectively opening and closing,

Permanent magnets are built in the blocking member, and the gas flow hole is formed with a vertical rod extending from the gas discharge hole to the bottom of the gas flow hole by forming an internal gas leakage passage penetrating up and down inside. The head has a structure which is fixed integrally and communicates with the internal gas leakage passage and at the same time is formed with an upper gas leakage passage through which the gas discharge hole is opened to temporarily discharge a small amount of gas to the outside. A valve body that is integrally mounted on the lower side to selectively open and close the lower end of the gas discharge hole as the vertical rod moves up and down, and is integrally mounted on the lower end of the vertical rod, and is disposed inside the LPG container to provide a small amount of internal gas leakage. Fine gas inlet for introducing gas, and the lower part is fixed to the lower end of the gas flow hole, the upper part is a fixture for supporting and guiding the vertical rod It is equipped with a gas-barrier device having only when the container and the gas unit combined properly to provide a liquefied petroleum gas container valve where the gas is discharged in the container.

Preferably, the upper gas leakage passage of the head is equipped with a push pin so as to protrude upward from the inside, a rubber packing is mounted on the upper end of the push pin, the lower end of the push pin is engaged with the upper end of the vertical rods The first elastic spring is disposed.

In addition, the fine gas inlet is formed on the lower peripheral surface of the vertical rod while surrounding the sintered metal and Teflon and the sintered metal and Teflon are sequentially mounted on the bottom of the vertical rod and formed in the bottom of the vertical rod to filter the gas flowing from the LPG container The state consists of a filtering network.

As mentioned above, according to the present invention, there is a conventional valve body having a lower portion mounted on an LPG container, a handle having a permanent magnet mounted on the upper side of the valve body to open and close the valve, and a small amount of gas therein. It has a microfluidic structure and is equipped with a gas shutoff device mounted inside the lower part of the valve body and selectively opened and closed by a permanent magnet and a pressure difference, so that the gas only when the hose between the LPG container and the gas machine is normally connected. Can be discharged.

Hereinafter, with reference to the accompanying drawings will be described for the liquefied petroleum gas container valve according to an embodiment of the present invention.

2 is a cross-sectional view showing a liquefied petroleum gas container valve according to the present invention, and Figure 3 is a cross-sectional view showing an exploded gas shutoff device shown in FIG.

Liquefied petroleum gas container valve 100 according to the present invention is coupled to the LPG container (not shown) as shown in Figure 1 is formed with a gas flow hole 22 through which the gas flows inside, the gas flow on one side A connection hole 14 is formed in communication with the ball 22 and connected to a gas device (not shown). A safety device 16 is formed on the opposite side of the connection hole 14, and a gas flow hole 22 is formed thereon. Handle 18 is formed with a blocking member 20 to open and close), the gas flow hole 22 is equipped with a gas blocking device 200. At this time, the permanent magnet 110 is embedded in the blocking member 20 formed in the lower portion of the handle 18.

Referring to FIG. 3, the gas shutoff device 200 includes a vertical rod 210, a head 220, a valve body 230, a fine gas inlet 240, and a fixture 250. The vertical rod 110 has male threads formed at upper and lower portions thereof, and internal gas leakage passages 212 penetrated up and down are formed therein. The vertical rod 210 extends vertically from the gas discharge hole 24 inside the valve body 10 to the lower end of the gas flow hole 22. At this time, a plurality of engaging grooves 214 are formed radially inward in the central portion of the vertical rod 210. The head 220 and the valve body 230 is mounted on the upper portion of the vertical rod 210 formed as described above, the micro gas inlet 240 is mounted on the lower portion thereof, and the fixture 250 is disposed at the center portion thereof.

Head 220 is made of a metal in response to the magnetic force and is integrally coupled to the male screw formed on the upper portion of the vertical rod 210 is moved up and down in the gas discharge hole 24 by the magnetic force of the permanent magnet (110). In this case, an upper gas leakage passage 222 is formed inside the head 220 to communicate with the internal gas leakage passage 212 of the vertical rod 210. The upper gas leakage passage 222 has a push pin 224 with a rubber packing (P) mounted at the center thereof as the upper portion protrudes to the outside, and a first elastic spring 226 is provided below the push pin 224. It is built. Like the head 220, the lower part of the head 220 is integrally coupled to the male screw of the vertical rod 210 to open and close the lower end of the gas discharge hole 24 according to the vertical and vertical movements of the vertical rod 210. The valve body 230 is mounted. At this time, the rubber packing (P) is mounted on the upper end of the valve body 230 to effectively open and close the lower end of the gas discharge hole (24).

On the other hand, the micro gas inlet 240 is mounted on the bottom of the vertical rod 210 and is disposed inside the LPG container, and has a sintered metal 242, Teflon 244 and the filter net 246. The sintered metal 242 and the teflon 244 are sequentially mounted to the bottom of the vertical rod 210, the outer side of the sintered metal 242 and the teflon 244, the filter net 246 to the bottom of the vertical rod 210 The sintered metal 242 and the Teflon 244 are wrapped while being integrally coupled to the formed male screw. At this time, the sintered metal 242 and the teflon 244 flows the gas passing through the filter net 246 into the minute hole formed therein and sends it to the internal gas leakage passage 212 formed in the vertical rod 210. Preferably, the sintered metal is made of metal powder in a mold and pressed by pressing to make it hard. When heated to a temperature close to the melting point of the material, the powder is bonded to each other or a part is deposited. ) Is connected to each other to become a lump. Such a sintered metal has a fine hole formed therein. In addition, the Teflon 244 has a small internal diameter of about 0.3 mm to minimize the cross-sectional area of the gas in contact with the sintered metal to make a small amount of gas moving upwards. As such, the vertical rod 210 on which the head 220, the valve body 230, and the fine gas inlet 240 are mounted is supported by the fixture 250 in a state where the second elastic spring 270 is fitted in the center thereof.

Fixture 250 is a lower portion is screwed to the lower end of the gas flow hole 22 is mounted, the upper side is formed with a sliding hole 252 penetrated up and down in the inner center vertical bar 210 is fitted. At this time, the sliding hole 252 is formed with a seating groove 254 having an inclined surface 256 inclined in the upper surface while extending radially outward, the locking ring 258 is a vertical rod inside the seating groove 254 It is embedded in the 210. Preferably, a plurality of gas through holes 260 are formed in the central portion of the fixture 250 so that the LPG under the gas flow hole 22 passes through the fixture 250 and moves above the gas flow hole 22.

Hereinafter, the state of use of the liquefied petroleum gas container valve 100 formed as described above will be briefly described.

4a, 4b, 4c and 4d is a view showing a state of use of the liquefied petroleum gas container valve according to the present invention.

First, the container valve 100 according to the present invention is connected to the new vessel filled with a pressure regulator as shown in Figure 4a to the pressure regulator in the normal use, the connection hole 14 side is at atmospheric pressure and the gas flow hole 22 is the same as the internal pressure of the container It is under pressure. Next, as shown in FIG. 4B, when the handle 18 is rotated to open the gas discharge hole 24, the push pin 224 is thrown out to close the gap between the push pin 224 and the gas discharge hole 24. As a small amount of gas is discharged through it increases the pressure on the connection hole (14) side. When the handle 18 is fully open and the influence of the magnetic force is reduced, and the sum of the pressure on the connection hole 14 and the gravity caused by the self-weight of the gas shutoff device 200 exceeds the internal pressure of the gas shutoff device 200, It moves downward (see FIG. 4C).

However, when the container is opened by itself without being connected to the gas appliance, when the connecting hose is cut off, when the gas appliance is defective due to leaking gas, when the gas leaks by opening the valve of the gas appliance, etc. ) Is fully opened to reduce the influence of the magnetic force, the connection hole 14 becomes atmospheric pressure to support the valve body 230 only by the gas pressure of the gas flow hole 22. Therefore, although the gas discharge hole 24 was opened by turning the handle 18, the gas in the container is not discharged.

In addition, if the container is turned upside down during LPG recovery, even if the handle is completely opened by the weight of the gas shutoff device 200, it is always blocked. In order to smoothly recover, the gas shutoff device 200 must be retracted to secure a gas passage. To this end, a fluid having a higher pressure than the internal pressure of the container is injected to the connection hole. The gas shutoff device 200 is retracted by the force of the high pressure fluid, and once the retraction device 200 is retracted, as shown in FIG. 4D, the locking ring 258 is caught by the locking groove 214 of the vertical rod 210. Fix 200.

As described above, the liquefied petroleum gas container valve according to the present invention is provided with a gas shut-off device designed in such a way that the gas is not discharged if the interval between the vessel and the gas equipment is not normally combined, by opening the valve arbitrarily suicide There is an advantage in preventing actions such as attempting a fire, arranging fires, or protesting.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the present invention described in the utility model registration claims. It will be appreciated.

Claims (4)

The gas filled in the LPG container is supplied from the connection hole on one side to the gas appliance side through the gas flow hole and the gas discharge hole, and a safety device is formed on the opposite side of the connection hole, and the gas discharge hole on the opposite side of the gas flow hole. In the liquefied petroleum gas container valve equipped with a handle having a blocking member for selectively opening and closing the top of the, The blocking member has a permanent magnet embedded therein, and the gas flow hole is formed of a vertical rod extending from the gas discharge hole to the bottom of the gas flow hole while being formed with an inner gas leakage passage penetrating up and down inside the metal flow hole. The upper gas leakage passage is formed integrally fixed to the upper end of the vertical rod and communicates with the internal gas leakage passage and penetrates to the outside, and temporarily discharges a small amount of gas to the outside when the gas discharge hole is opened. A head having a head, and a valve body which is integrally mounted to the lower side of the head and selectively opens and closes the lower end of the gas discharge hole according to the up and down movement of the vertical rod, and is integrally mounted to the lower end of the vertical rod and the LPG. A fine gas inlet disposed in the container to introduce a small amount of gas into the internal gas leakage passage; It is fixed to the lower end of the flow hole and the upper portion is equipped with a gas blocking device having a fixture for supporting and guiding the vertical rod is characterized in that the gas in the container is discharged only when the container and the gas equipment is normally coupled Liquefied petroleum gas container valve. According to claim 1, wherein the upper gas leakage passage of the head is equipped with a push pin that is inserted into the upper portion having a rod-shaped protruding upwards, a rubber packing is mounted on the upper end of the push pin, Liquefied petroleum gas container valve, characterized in that the first elastic spring is arranged at the lower end engaging the upper end of the vertical rod. The method of claim 1, wherein the fine gas inlet is formed on the lower outer peripheral surface of the vertical rods and the sintered metal and teflon are formed in a small hole therein and sequentially mounted on the lower end of the vertical rod, the sintered metal and the Teflon Liquefied petroleum gas container valve characterized in that consisting of a filtering network for filtering the gas flowing from the LPG container. According to claim 1, wherein a plurality of engaging grooves are formed while the second elastic spring is fitted in the central portion of the vertical rod, the fastener is formed with a sliding hole through which the vertical rod penetrates upwards and downwards and radially in the central portion of the sliding hole. Liquefied petroleum gas container valve characterized in that the seating groove is formed with an inclined surface inclined at a predetermined angle while extending to the outside and the locking groove is built in the seating groove.