KR200485013Y1 - Safety device for gas container - Google Patents

Safety device for gas container Download PDF

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Publication number
KR200485013Y1
KR200485013Y1 KR2020150005254U KR20150005254U KR200485013Y1 KR 200485013 Y1 KR200485013 Y1 KR 200485013Y1 KR 2020150005254 U KR2020150005254 U KR 2020150005254U KR 20150005254 U KR20150005254 U KR 20150005254U KR 200485013 Y1 KR200485013 Y1 KR 200485013Y1
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KR
South Korea
Prior art keywords
gas
cap
safety
valve
valve housing
Prior art date
Application number
KR2020150005254U
Other languages
Korean (ko)
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KR20170000599U (en
Inventor
원세경
Original Assignee
오제이씨(주)
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Priority to KR2020150005254U priority Critical patent/KR200485013Y1/en
Publication of KR20170000599U publication Critical patent/KR20170000599U/en
Application granted granted Critical
Publication of KR200485013Y1 publication Critical patent/KR200485013Y1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0391—Arrangement of valves, regulators, filters inside the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0709—Camping gas

Abstract

A design for a gas container safety device is disclosed. The gas container safety device includes: an upper cap provided on an upper portion of a main body; a valve portion provided in the upper cap to discharge gas filled in the main body; and a shutoff valve portion And a gas discharging portion interlocked with the shutoff valve portion and discharging the overpressure gas to the outside of the main body.

Figure R2020150005254

Description

[0001] SAFETY DEVICE FOR GAS CONTAINER [0002]

The present invention relates to a gas container safety device, and more particularly, to a gas container safety device capable of protecting a user from a flame by discharging an overpressure gas after removing a fire source when an overpressure of a gas container occurs.

Generally, a portable gas container includes a portable butane gas container used for a portable gas range filled with a butane gas mixture mainly composed of butane gas as a main ingredient of liquefied petroleum gas, a hair spray, a pesticide, a lacquer Aerosol containers such as aerosol spray, etc. These portable gas containers are used to eject the contents to the outside by using the gas pressure in the container.

If the butane gas container receives high heat from the surroundings during distribution or use, the pressure of the liquefied gas inside the butane gas container rises and explodes. In particular, in the case of the butane gas container used for the portable gas stove, Do not defy, use anomalous, high pressure or a certain pressure higher than the internal pressure increases, the container may be deformed or damaged, and may explode in severe cases.

On the other hand, a "portable gas container" is disclosed in Korean Utility Model Application No. 2005-0092527 (published on September 22, 2005).

The object of the present invention is to provide a gas container safety device capable of preventing the gas container from exploding by discharging the overpressure gas to the outside when the overpressure of the gas container is generated, and protecting the user from the flame by removing the gasifier before the over- .

According to another aspect of the present invention, there is provided a safety device for a gas container, comprising: an upper cap provided at an upper portion of the main body; a valve portion provided in the upper cap for discharging gas filled in the main body; And a gas discharging unit interlocked with the shutoff valve unit to discharge the overpressure gas of the main body to the outside.

In addition, the valve unit includes a valve housing provided in the upper cap and communicating the inside and the outside of the main body, and a stem provided in the valve housing and selectively discharging the internal gas of the main body.

In addition, the shutoff valve unit includes a finishing cap provided at an end of the valve housing, and a blocking elastic member for elastically supporting the finishing cap in the valve housing.

In addition, the finishing cap may include a double blocking portion for blocking the valve housing when the valve housing is closed.

The valve housing may include a working space communicating with the flow path and provided with the blocking elastic member, the double blocking portion may include a first blocking portion formed at the tip of the finishing cap to block the flow path, And a second blocking portion formed at a rear end of the cap to block the operation space portion.

In addition, the operating space portion may include an extending rib portion for preventing interference with the blocking elastic member when the finishing cap is moved.

In addition, the shutoff valve unit may include a departure prevention unit for preventing the finish cap from separating from the valve housing.

The release preventing portion may include a release preventing cap provided at an end of the valve housing and a fixing portion for fixing the release preventing cap.

The gas discharge portion may include a discharge hole provided in the upper cap and a safety flow path tube provided corresponding to the discharge hole and through which the internal gas flows into the body when the valve portion is closed by the shutoff valve portion, A safety packing member for shielding the safety channel, and a safety elastic member for elastically pressing the safety packing member to block the safety channel.

In addition, the safety channel is formed in a ring-shaped cross section having an inlet at one side thereof.

In addition, the safety packing member is formed with a seating groove on which the safety elastic member is seated.

Further, the valve portion and the gas discharge portion are integrally formed.

The gas container safety device according to the present invention does not comply with safety regulations and is used in an anomalous manner, and if an overpressure is generated in the main body, the overpressure gas can be discharged to the outside by the gas discharging portion to prevent the main body from exploding.

In addition, according to the present invention, the gas discharged from the gas stove can be removed by shutting off the gas discharged to the stem side before the overpressure gas is discharged by the gas discharging part, thereby protecting the user from flames when the overpressure gas is discharged.

In addition, the present invention can improve the airtightness by the double shut-off portion of the finishing cap, thereby improving the operational reliability.

In addition, the present invention improves the assemblability by integrally forming the shutoff valve portion and the gas discharge portion in the valve portion.

The present invention also allows the safety packing member to be evenly discharged to all parts of the overpressure gas as the safety packing member is stably moved from the safety channel through the wing.

1 is a perspective view showing a gas container according to an embodiment of the present invention.
2 is a perspective view of a gas container safety device according to an embodiment of the present invention.
3 is a cross-sectional view of a gas container safety device according to one embodiment of the present invention.
4 is a view showing a valve blocking portion of a gas container safety device according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view showing normal use of a gas container safety device according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view showing the flow path interruption of the gas container saddle apparatus according to an embodiment of the present invention.
FIG. 7 is a cross-sectional view illustrating operation of the gas container safety device according to an embodiment of the present invention upon overpressure discharge.

Hereinafter, an embodiment of the gas container safety device according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of functions in the present invention, and this may vary depending on the intentions or customs of the user, the operator, and the like. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a perspective view showing a gas container according to an embodiment of the present invention, FIG. 2 is a perspective view of a gas container safety device according to an embodiment of the present invention, and FIG. 3 is a perspective view of a gas container according to an embodiment of the present invention. FIG. 4 is a view showing a valve blocking portion of a gas container safety device according to an embodiment of the present invention, and FIG. 5 is a sectional view showing normal use of the gas container safety device according to an embodiment of the present invention FIG. 6 is a cross-sectional view of a gas container saddle device according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view illustrating operation of the gas container safety device according to an embodiment of the present invention.

1 to 7, a gas container safety device 100 according to an embodiment of the present invention includes an upper cap 120, a valve portion 130, a shutoff valve portion 140, and a gas discharge portion 170. [ .

The upper cap 120 is provided on the upper portion of the main body 110. The main body 110 includes a cylindrical body 112, a lower cap 114 covering the lower portion of the body 112, and a dome 116 covering the upper portion of the body 112. The main body 110 is made of a metal material having a predetermined thickness or more so as to have durability.

The lower cap 114 and the dome 116 are seamed on both ends of the cylindrical body 112 and the body 110 is formed by integrally joining them.

The upper cap 120 is coupled to a central portion of the dome 116 and the upper cap 120 is provided with a valve portion 130.

The valve unit 130 discharges the gas filled in the main body 110 and includes a valve housing 132 provided in the upper cap 120 and having a flow path 132a for communicating the inside and the outside of the main body 110 And a stem 134 provided in the valve housing 132 and supported by the elastic member 136 to selectively discharge the internal gas of the main body 110.

The valve housing 132 is coupled to an inner center portion of the upper cap 120 and a stem 134 is provided at the center of the valve housing 132. The stem 134 is resiliently supported by the resilient member 136 in the interior space of the valve housing 132 and an orifice 135 is formed therethrough. A stem gasket 138 is provided between the upper cap 120 and the valve housing 132 to shield the orifice 135.

Therefore, before the stem 134 is pressed, the stem gasket 134 closes the orifice 135, so that the gas in the main body 110 is not discharged to the outside. When the stem 134 is pressed by an external force, 135 are opened and the gas of the main body 110 is discharged to the outside.

The shutoff valve unit 140 blocks the gas discharged to the valve unit 130 when the overpressure of the main body 110 is generated and blocks gas discharged to the outside through the stem 134 of the valve housing 132. That is, it acts to cut off the gas discharged through the stem 134 in the overpressure generation mode to remove the fire source.

The shutoff valve unit 140 includes a finishing cap 142 provided at an end of the valve housing 132 and a blocking elastic member 144 for elastically supporting the finishing cap 142 inside the valve housing 132 . At this time, the end of the valve housing 132 is refracted and extended to one side, and the finishing cap 142 is horizontally moved in accordance with the internal pressure to block the gas discharged to the outside through the valve housing 132.

The finishing cap 142 includes a double blocking portion 150 that allows the valve housing 132 to be double-blocked when the valve is closed. The valve housing 150 includes a working space portion 132b communicating with the flow path 132a and provided with a blocking elastic member 144. That is, as shown in FIG. 4, the operating space 132b is provided in the horizontal section of the valve housing 132. As shown in FIG.

The double blocking portion 150 is formed at the tip of the finishing cap 142 and has a first blocking portion 152 for blocking the flow path 132a and a second blocking portion 152 formed at the rear end of the finishing cap 142, (Not shown). The first blocking portion 152 is formed at the tip end of the finishing cap 142 and has an adhered slant surface which is in close contact with the inner diameter of the flow path 132a when the finishing cap 142 is cut off. And a stepped portion which is in close contact with an end of the operating space portion 132b.

The operation space portion 132b is provided with an extended rib portion 155 for preventing interference with the blocking elastic member 144 when the finishing cap 142 is moved. The extension rib portion 155 is provided between the flow path 132a and the operation space portion 132b to prevent the interference between the finishing cap 142 and the blocking elastic member 144 during the closing operation of the finishing cap 142, Enabling operation.

The shutoff valve portion 140 includes an escape prevention portion 160 that prevents the escape cap 142 from escaping from the valve housing 132. The separation preventing portion 160 includes a separation preventing cap 162 provided at an end portion of the valve housing 132 and a fixing portion 164 for fixing the separation preventing cap 162. The escape prevention cap 162 is hollow and the securing portion 164 includes a hook 166 formed in the escape prevention cap 162 and a fixing groove 167 to which the hook 166 is engaged. The hook 166 is partly cut away from the escape prevention cap 162 to have an elastic force and the tip of the escape prevention cap 162 is sloped forward so as to be easily inserted into the end portion of the valve housing 132.

The gas discharge part 170 is provided in the upper cap 120 and interlocks with the shutoff valve part 140 to discharge the overpressure gas of the main body 110 to the outside. That is, when the overpressure is generated, when the internal pressure further increases after the valve portion 130 is shut off by the shutoff valve portion 140, the overpressure gas of the main body 110 is released to the outside in cooperation with the pressure, do.

The gas discharge portion 170 is provided in correspondence with the discharge hole 172 and the discharge hole 172 provided in the upper cap 120. When the valve portion 130 is closed by the shutoff valve portion 140, A safety packing member 176 for shutting off the safety packing member 176 and the safety channel pipe 174 for shielding the safety channel pipe 174, And includes a safety resilient member 178 which is elastically pressed.

The discharge hole 172 is formed in a ring shape outside the center of the upper cap 120. The safety pipe 174 is also formed in a ring-shaped cross section so as to correspond to the discharge hole 172. The safety packing member 176 provided in the safety channel 174 to shield the safety channel 174 Ring shape. The safety packing member 176 provided in the safety flow pipe 174 is pressed by the safety elastic member 178 made of a coil spring.

At this time, a safety gasket 179 is provided between the safety channel 174 and the discharge hole 172, and the safety elastic member 178 provided on the safety channel 174 is supported by the escape prevention holder 178a So that the separation is prevented.

The safety packing member 176 is formed with a seating groove 177 on which the safety elastic member 178 is seated.

The elastic force of the safety elastic member 178 is configured to be stronger than the elastic force of the blocking elastic member 144. [ That is, when the internal pressure of the main body 110 is 0.7 to 0.9 MPa, the blocking elastic member 144 is contracted to close the valve housing 132 and the internal pressure of the main body 110 is 0.9 to 1.1 MPa, the safety elastic member 178 is contracted to open the safety flow path pipe 174 to discharge the overpressure gas to the outside.

Meanwhile, the valve portion 130 and the gas discharging portion 170 may be integrally formed. That is, the safety flow pipe 174 is integrally formed around the valve housing 132 to improve the assemblability.

The operation and effect of the gas container safety device according to one embodiment of the present invention having the above-described structure will be described as follows.

The gas container according to the present embodiment may be used after being mounted on a portable gas range. That is, when the operation member of the gas stove is operated after the main body 110 is mounted on the gas stove, the stem 134 of the valve unit 130 is pressed, and the gas filled in the main body 110 moves the stem 134 .

5, when the stem 134 is moved, the orifice 135, which has been blocked by the stem gasket 138, is opened and the inner gas of the main body 110 is discharged to the outside through the valve housing 132 It is discharged and used as a flower garden.

When the portable gas stove is used in an irregular manner without obeying the safety regulations and the overpressure is generated in the main body 110, the main body 110 is exposed to the danger of explosion. It is possible to prevent this.

6, when the flow path 132a of the valve housing 132 for normally discharging the gas in the main body 110 through the stem 134 during the first overheating is moved . This is because when the internal pressure of the main body 110 reaches 0.7 to 0.9 MPa, the closing elastic member 144 is contracted and the finishing cap 142 is moved. As the flow path 132a is blocked, the gas stove burning port is extinguished .

The cut-off reliability of the flow path 132a can be improved by the double cut-off portion 150. 6, when the blocking elastic member 144 is contracted by the internal pressure of the main body 110, the first blocking portion 152 formed at the front end of the finishing cap 142 moves in the flow path 132a, And the second blocking portion 154 formed at the rear end of the finishing cap 142 secondarily blocks the operating space portion 132b. This makes it possible to reliably extinguish the fire of the gas cooking zone.

7, the safety packing member 176 provided in the safety channel pipe 174 rises and the safety channel pipe 174 is opened (opened) So that the gas inside the main body 110 is discharged to the outside through the discharge hole 172. This can prevent the main body 110 from being exploded. At this time, since the gas source of the gas stove is removed by the shutoff valve unit 140, there is no risk of generating a flame, so that the user can be protected from the flame.

This is possible because the safety resilient member 178 is contracted when the internal pressure of the main body 110 reaches 0.9 to 1.1 MPa to move the safety packing member 176.

A seating groove 177 is formed on the upper surface of the safety packing member 176 so that the safety elastic member 178 can be seated accurately and a wing portion 176a extending outward is formed at the bottom edge, It is possible to uniformly raise all the parts in the safety channel 174 at the time of the rise. When the gas inside the main body 110 is discharged, the overpressure gas can be uniformly discharged to all the parts of the discharge hole 172.

In addition, a departure-preventing cap 162 is provided at the end of the valve housing 132 to prevent detachment of the finishing cap 142. Particularly, when the gas is filled in the main body 110 along the flow path 132a, It is possible to prevent the closing cap 142 from being detached by the gas pressure.

As described above, according to the gas container safety device according to one embodiment of the present invention, when an overpressure is generated inside the main body without using safety rules and is used anomaly, it is possible to prevent the explosion of the main body by discharging the overpressure gas to the outside And the gas discharged to the stem side before the discharge of the overpressure gas by the gas discharge part is blocked by the shutoff valve part, the gas source of the gas stove can be removed, and the user can be protected from the flame upon discharge of the overpressure gas.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. I will understand.

Therefore, the true scope of technical protection of this invention should be determined by the scope of utility model claim.

100: gas container safety device 110: main body
112: body 114: bottom cap
116: dome 120: upper cap
130: valve portion 132: valve housing
132a: a flow path 132b:
134: stem 135: orifice
136: Elastic member 138: Stem gasket
140: shutoff valve part 142: closed cap
144: blocking elastic member 150: double blocking member
152: first blocking portion 154: second blocking portion
155: extension rib portion 160:
162: separation prevention cap 164:
166: Hook 167: Fixing groove
170: gas emission part 172: emission hole
174: safety flow pipe 176: safety packing member
176a: wing portion 177: seat groove
178: safety elastic member 178a:
179: Safety gasket

Claims (12)

An upper cap provided on an upper portion of the main body;
A valve unit provided in the upper cap for discharging gas filled in the main body;
A shutoff valve for shutting off the gas discharged to the valve when overpressure of the main body occurs; And
And a gas discharge portion interlocked with the shutoff valve portion and discharging the overpressure gas to the outside,
Wherein the valve unit includes a valve housing provided in the upper cap and having a flow path communicating the inside and the outside of the main body; And
And a stem provided in the valve housing and selectively discharging the internal gas of the body,
Wherein the shutoff valve portion includes a finishing cap provided at an end of the valve housing; And
And a blocking elastic member for elastically supporting the finishing cap inside the valve housing,
The shutoff valve portion includes a departure prevention portion for preventing the departure of the finish cap from the valve housing,
The departure prevention portion may include an escape prevention cap provided at an end portion of the valve housing; And
And a fixing portion for fixing the departure-preventing cap,
The fixing unit includes:
A hook formed on the departure-preventing cap; And
And a fixing groove to which the hook is coupled.
delete delete The method according to claim 1,
Wherein the finishing cap includes a double blocking portion for blocking the valve housing when the valve housing is closed.
5. The method of claim 4,
Wherein the valve housing includes a working space communicating with the flow path and provided with the blocking elastic member;
The double blocking portion may include a first blocking portion formed at a front end of the finishing cap to block the flow path; And
And a second blocking portion formed at a rear end of the finishing cap to block the operation space portion.
6. The method of claim 5,
Wherein the operating space portion is provided with an extending rib portion for preventing interference with the blocking elastic member when the finishing cap is moved.
delete delete The fuel cell system according to claim 1,
A discharge hole provided in the upper cap;
A safety flow pipe provided corresponding to the discharge hole and through which the internal gas flows into the main body when the valve is blocked by the shutoff valve;
A safety packing member for shielding the safety passage pipe; And
And a safety elastic member for elastically pressing the safety packing member to block the safety passage pipe.
10. The method of claim 9,
Wherein the safety channel is formed in a ring shape having an inlet at one side thereof.
10. The method of claim 9,
Wherein the safety packing member is formed with a seating groove on which the safety elastic member is seated.
The method according to claim 1,
Wherein the valve portion and the gas discharging portion are integrally formed.
KR2020150005254U 2015-08-06 2015-08-06 Safety device for gas container KR200485013Y1 (en)

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Publication number Priority date Publication date Assignee Title
KR101963193B1 (en) * 2017-09-01 2019-03-28 주식회사 대륙제관 Safety apparatus by blocking gas flow channel of portable gas container using shape memory alloy
KR102087334B1 (en) * 2018-11-06 2020-03-10 주식회사 대륙제관 Safety apparatus using shape memory alloy reinforced flow barrier function to prevent explosion of portable gas container
KR102092874B1 (en) * 2018-11-13 2020-03-24 주식회사 대륙제관 A safety device that uses a shape memory alloy to close the flow path of the valve housing to prevent explosion of the portable gas container

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101523974B1 (en) * 2015-01-21 2015-05-29 김종주 Two-stage safety valve for portable gas container

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101346545B1 (en) * 2011-09-23 2013-12-31 주식회사 화산 Gas container Valve for preventing gas explosion and its assembly method
KR20140105690A (en) * 2013-02-23 2014-09-02 오은영 The gas can

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101523974B1 (en) * 2015-01-21 2015-05-29 김종주 Two-stage safety valve for portable gas container

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