KR101652636B1 - Safety valve for vacuum pot - Google Patents

Safety valve for vacuum pot

Info

Publication number
KR101652636B1
KR101652636B1 KR1020150055309A KR20150055309A KR101652636B1 KR 101652636 B1 KR101652636 B1 KR 101652636B1 KR 1020150055309 A KR1020150055309 A KR 1020150055309A KR 20150055309 A KR20150055309 A KR 20150055309A KR 101652636 B1 KR101652636 B1 KR 101652636B1
Authority
KR
South Korea
Prior art keywords
rod
container
groove
housing
vacuum
Prior art date
Application number
KR1020150055309A
Other languages
Korean (ko)
Inventor
구정오
Original Assignee
구정오
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 구정오 filed Critical 구정오
Priority to KR1020150055309A priority Critical patent/KR101652636B1/en
Application granted granted Critical
Publication of KR101652636B1 publication Critical patent/KR101652636B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1644—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/32—Closures with discharging devices other than pumps with means for venting
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)

Abstract

[0001] The present invention relates to a safety valve for a vacuum container, and more particularly, to a safety valve for a vacuum container in which when an excessive vacuum pressure is generated within a vacuum container, the safety valve introduces external air into the vacuum container, To a safety valve for a vacuum container configured to prevent the container from being broken.

Description

[0001] Safety valve for vacuum pot [0002]

[0001] The present invention relates to a safety valve for a vacuum container, and more particularly, to a safety valve for a vacuum container in which when an excessive vacuum pressure is generated within a vacuum container, the safety valve introduces external air into the vacuum container, To a safety valve for a vacuum container configured to prevent the container from being broken.

In general, food left in the home after meals is stored in a container or in a refrigerator. Even if stored in a refrigerator, food often becomes easily decayed over time.

In order to solve such a problem, the remaining food is stored in a vacuum container to prevent the food from being easily decayed. In the vacuum container, a rubber packing for sealing the gap between the lid and the container is provided, When the lid is closed, the food is cooled so that the volume of the air inside the container shrinks and the inside of the container becomes a vacuum state.

However, when vacuum pressure is excessively formed inside the vacuum container, the container or lid formed of a thin metal is distorted. In the case of a lid or a container formed of a glass material, the vacuum is sometimes broken by the vacuum pressure inside the container do.

Particularly, when the lid or the container is formed of glass, the glass is broken by the vacuum pressure inside the container, so that the fragments may protrude in all directions and cause a safety accident.

Korea Patent Office Registration No. 10-0539585, "Pressure vessel sealing device"

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a safety valve in which when an excessive vacuum pressure is generated in a vacuum chamber, It is an object of the present invention to provide a safety valve for a vacuum container which can prevent the container from being broken by adjusting the vacuum pressure.

According to an aspect of the present invention, there is provided a safety valve for a vacuum container, including: a hole formed in a lid or a container for communicating the inside and the outside of the container; The housing body 121 is formed in the shape of a pipe with a load groove 122 provided therein and an outlet 124 is provided at a lower portion in a hole shape so as to communicate with the outside of the rod groove 122, A rod housing (120) to be inserted; A contact piece 130 formed of an elastic material and protruding outward of the rod housing 120 to be brought into close contact with an outer surface of the vacuum container or lid; A rod 110 formed into a rod shape and inserted into the inner rod groove 122 of the rod housing 120; A spring 140 inserted into the rod housing 120 to elastically compress the rod 110 to the outside of the container; And an O-ring 115 which is fastened to the lower portion of the rod 110 and closes the rod groove 122 by coming into close contact with the lower end 127 of the rod groove 122 by elasticity of the spring 140 .

At this time, the both ends of the spring 140 closely contact the engaging protrusions 116 formed on the upper portion of the rod 110 and the engaging protrusions 126 formed on the lower portion of the rod groove 122 of the rod housing 120, To be elastically pressed.

In addition, the rod 110 is formed on the outer surface thereof with a suction groove 113 in the form of a groove in the axial direction of the rod 110.

Further, the rod housing 120 has a latch 125 formed at the lower end of the rod housing 120 so as to protrude laterally.

In addition, a head 112 having a larger size than the rod body 111 is formed on the upper end of the rod 110.

The rod housing 120 has a groove-like fastening groove 123 formed on the outer surface thereof and a ring-shaped fastening piece 130 is inserted and fixed in the fastening groove 123 .

When the vacuum pressure inside the vacuum container is below the prescribed pressure, the safety valve functions as a vacuum holding valve. When excessive vacuum pressure is generated in the vacuum chamber above the specified pressure, the safety valve is automatically opened, Air is introduced into the interior of the vacuum container to adjust the inside of the vacuum container to a pressure equal to or lower than the specified pressure, thereby preventing the container from being damaged.

1 is a perspective view showing a lid provided with a safety valve according to the present invention;
2 is a perspective view showing a safety valve according to the present invention.
3 is an exploded perspective view showing a safety valve according to the present invention.
4 is a sectional view showing a safety valve according to the present invention.
FIG. 5 is a sectional view showing a state in which the pressure inside the container is discharged to the outside during the cooking process. FIG.
6 is a cross-sectional view showing a state in which the vacuum valve of the present invention is opened when a vacuum pressure equal to or higher than a specified pressure is generated in a vacuum container.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, the present invention will be described in detail with reference to preferred embodiments of the present invention and the accompanying drawings, wherein like reference numerals refer to like elements.

It is to be understood that when an element is referred to as being "comprising" another element in the description of the invention or in the claims, it is not to be construed as being limited to only that element, And the like.

2 is a perspective view illustrating a safety valve according to the present invention, FIG. 3 is an exploded perspective view showing a safety valve according to the present invention, and FIG. 3 is an exploded perspective view showing a safety valve according to the present invention. 4 is a cross-sectional view illustrating a safety valve according to the present invention, FIG. 5 is a cross-sectional view illustrating a state in which a pressure inside the container is discharged to the outside during cooking, FIG. 6 is a cross- Sectional view showing a state in which the vacuum valve of the present invention is opened.

The safety valve 100 according to the present invention can be installed in a vacuum container (not shown). In the embodiment of the present invention, the safety valve 100 is installed in a lid 10 which covers and hermetically closes a vacuum container as shown in FIG.

1, the vacuum container lid 10 is formed by forming a padding 11 made of rubber on the lower part of the lid 10 in contact with the container, thereby sealing the inside of the container when the lid 10 is covered with the container 10, As the food cools, the volume of air inside the container shrinks and the inside of the container is evacuated.

3, the safety valve 100 according to the present invention includes a rod 110, a rod housing 120 into which the rod 110 is inserted, a rod 110 fixed to the rod 110 in the rod housing 120, And a contact piece 130 protruding outward from the rod housing 120 and coming into close contact with the upper surface of the lid 10.

The rod 110 has a head 112 formed on an upper portion of a cylindrical rod body 111 and one or more suction grooves 113 formed vertically on an outer surface of the rod body 111. The rod body 111, An O-ring 115 is provided at a lower portion of the O-

The rod 110 is inserted into a rod-shaped rod housing 120. The rod housing 120 is formed with a pipe-shaped housing body 121 as shown in FIGS. 3 and 4, The housing body 121 is provided with a fastening groove 123 for fastening the fastening piece 130 on the outer surface of the housing body 121. The lower portion of the housing body 121 is provided with a hole- (124) are formed radially.

The ring-shaped contact piece 130 is inserted and fixed in the contact piece fastening groove 123 of the housing body 121. The housing body 121 is formed of metal or synthetic resin while the contact piece is made of silicone or rubber It is preferable that the fastening piece 130 is inserted and fastened to the fastening groove 123 of the fastening piece 123 of the housing body 121 as in the embodiment of the present invention.

Alternatively, the contact piece 130 may be integrally formed with the housing body 121 through a double injection process.

The housing body 121 is formed with a latching protrusion 125 protruding outward from the housing body 121 at the lower end of the housing body 121.

The rod 110 is inserted into the rod groove 122 of the rod housing 120 and the spring 140 is first inserted into the rod groove 122 of the housing body 121 as shown in FIG. A spring 116 is formed on an upper portion of the rod body 111 and a spring 126 formed on a lower portion of the rod groove 122 of the housing body 121 as shown in FIG. The spring 140 elastically supports the rod 110 inside the rod housing 120 upward.

Since the O-ring 115 fastened to the lower portion of the rod 110 is caught by the lower end 127 of the rod housing 120 as shown in FIG. 4, the rod 110 is not separated from the rod housing 120 do.

4, the safety valve 100 of the present invention is installed in a hole formed in the lid 10 of the vacuum container so that the contact piece 130 is in contact with the upper surface of the lid 10.

Hereinafter, the operation of the safety valve 100 for a vacuum container according to the present invention will be described in detail.

The safety valve 100 according to the present invention is normally in a state as shown in FIG. 4. When the container is heated to cook food, the air and water are expanded inside the container, thereby increasing the pressure. 5, when the safety valve 100 mounted on the lid 10 is lifted together with the contact piece 130 by the pressure inside the container, the air inside the container is guided to the load housing 120 Through the discharge port 124 of the discharge port 124. [

As shown in FIG. 5, since the latch 125 protruding outward from the lower end of the rod housing 120 is caught by the lid 10, the safety valve 100 does not come off from the lid 10.

4, when the lid 10 is closed, the vacuum container is cooled, and the air volume inside the container is contracted. As a result, as shown in Fig. 4, The inside of the container is sealed, so that the inside of the container is in a vacuum state.

When the vacuum pressure formed inside the vacuum container is within the specified pressure, the close contact piece 130 is brought into close contact with the upper surface of the lid 10 as shown in FIG. 4, thereby blocking external air from entering the vacuum container.

As the vacuum vessel is closed, the vacuum pressure inside the vessel gradually rises as the temperature decreases. If the vacuum is excessively formed inside the vessel, the vessel is crushed or broken (when the vessel and the lid are formed of glass). Lt; / RTI > If excessive vacuum pressure is formed inside the vacuum container, the safety valve of the present invention is automatically opened to supply the outside air into the vacuum container, thereby maintaining the inside of the vacuum container at a vacuum pressure below the specified pressure, ≪ / RTI >

When a vacuum pressure higher than a specified pressure is formed in the container, as shown in Fig. 6, the load 110 inserted into the rod housing 120 is slid downward due to the vacuum pressure inside the container.

The rod 110 is resiliently supported by the spring 140 inside the rod housing 120. When the vacuum pressure inside the container is higher than the elastic force of the spring 140, Compresses the spring 140 and moves downward.

When the rod 110 moves downward as described above, the O-ring 115, which is provided under the rod 110 and contacts the lower end 127 of the rod housing 120 to seal the rod groove 122, 110, the load groove 122 is opened.

The air outside the container is introduced into the container through the gap between the outside of the rod 110 and the inside of the rod housing 120 and the outlet 124 of the rod housing 120 as shown in FIG. The vacuum pressure inside the container drops.

When the vacuum pressure inside the container falls below a predetermined pressure as described above, the rod 110 is lifted by the elastic force of the spring 140, and the O-ring 115 installed at the lower portion of the rod 110 is lifted up to the load housing The inside of the container is sealed again so that the inside of the container maintains a vacuum pressure below the specified pressure.

That is, the vacuum pressure inside the container is determined by the elastic force of the spring 140 that elastically supports the rod 110 within the rod housing 120.

When excessive vacuum pressure is generated within the vessel, the rod 110 descends and external air flows into the vessel through the gap between the rod 110 and the rod housing 120. Figs. 3 and 6, a vertical suction groove 113 is formed in the rod body 111 of the rod 110, so that when the rod 110 is lowered and external air flows into the container, 113) so as to be sucked into the container more quickly and smoothly.

It is very difficult for a user to open the lid 10 in a state in which vacuum pressure remains inside the vacuum container.

At this time, when the user pushes the head 112 of the rod 110 protruded on the upper portion of the safety valve 100, the rod 110 descends as shown in FIG. 6, and the safety valve 100 is opened, So that external air can be introduced into the vacuum container and the lid 10 can be opened easily.

The head 112 is formed to have a larger size than the rod body 111 as shown in FIG. 4 so that the user can press the head 112 to release the vacuum pressure inside the vacuum container, It also plays a role in limiting the downward slide movement displacement.

In the present invention having the above-described structure, when excessive vacuum pressure is generated within a vacuum container, the safety valve is automatically opened to allow external air to flow into the vacuum container, Thereby preventing a breakage of the battery.

The technical idea of the present invention has been described through the above embodiments.

It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described above from the description of the present invention.

Even if not explicitly shown or described, those skilled in the art will be able to make various modifications, including technical ideas according to the present invention, from the description of the present invention. Which is still within the scope of the present invention.

The above-described embodiments described with reference to the accompanying drawings are for the purpose of illustrating the present invention, and the scope of the present invention is not limited to these embodiments.

10: Lid
11: Packing
100: Safety valve
111: Rod body
112: head
113: Suction groove
114: O-ring fastening groove
115: O-ring
116:
120: Load housing
121: Housing body 121
122: Load home
123: fastener fastening groove
124: Outlet
125: Jamming hole
126: jaws
127:
130:
140: spring

Claims (6)

A hole formed in the lid or container for communicating the inside and the outside of the container;
The housing body 121 is formed in the shape of a pipe with a load groove 122 provided therein and an outlet 124 is provided at a lower portion in a hole shape so as to communicate with the outside of the rod groove 122, A rod housing (120) to be inserted;
A contact piece 130 formed of an elastic material and protruding from the upper portion of the discharge port 124 to the outside of the rod housing 120 to be brought into close contact with the outer surface of the vacuum container or lid;
A rod 110 formed into a rod shape and inserted into the inner rod groove 122 of the rod housing 120;
A suction groove 113 formed on the outer surface of the rod 110 in a groove shape in an axial direction of the rod 110;
The rod 110 is inserted into the rod housing 120 and closely contacted with the engaging protrusion 116 formed on the upper portion of the rod 110 and the engaging protrusion 126 formed on the lower portion of the rod groove 122 of the rod housing 120, A spring 140 which elastically presses out the container;
And an O-ring 115 which is fastened to the lower portion of the rod 110 and closes the rod groove 122 by coming into close contact with the lower end 127 of the rod groove 122 by elasticity of the spring 140 When the pressure inside the container increases, the rod housing 120 and the contact piece 130 are lifted so that the air inside the container is discharged to the outside through the discharge port 124 of the rod housing 120,
When the negative pressure is generated in the container, the close contact piece 130 is brought into close contact with the upper surface of the lid 10 to block the inflow of external air into the container to maintain the vacuum pressure, The rod 110 is moved downward from the rod housing 120 so that the discharge port 124 communicates with the outside of the container so that the sound pressure inside the container is reduced. The safety valve for the vacuum container.
delete delete The method according to claim 1,
And a latching protrusion (125) projecting laterally is formed at a lower end of the rod housing (120).
The method according to claim 1,
And a head (112) having a larger size than the rod body (111) is formed on an upper end of the rod (110).
The method according to claim 1,
Wherein the rod housing 120 has a groove-like fastening groove 123 formed on an outer surface thereof and a ring-shaped fastening piece 130 is inserted and fixed in the fastening groove 123. Safety valve for.
KR1020150055309A 2015-04-20 2015-04-20 Safety valve for vacuum pot KR101652636B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150055309A KR101652636B1 (en) 2015-04-20 2015-04-20 Safety valve for vacuum pot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150055309A KR101652636B1 (en) 2015-04-20 2015-04-20 Safety valve for vacuum pot

Publications (1)

Publication Number Publication Date
KR101652636B1 true KR101652636B1 (en) 2016-08-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110553458A (en) * 2019-09-29 2019-12-10 海信容声(广东)冷柜有限公司 Pressure balancing device for refrigerator
KR102432028B1 (en) * 2022-05-10 2022-08-12 (주)스패로우 Air valve forming injection path and discharge path

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960016269U (en) * 1994-11-10 1996-06-17 황인선 Safety valve for pressure cooker
KR200344726Y1 (en) * 2003-12-26 2004-03-18 우주보온공업주식회사 Cover for Vacuum-bottle
KR100539585B1 (en) 2004-02-05 2005-12-28 이동우 Push-type lid of pressure cooker
KR100675485B1 (en) * 2005-09-14 2007-01-30 권만현 Cooking pan
KR20140115241A (en) * 2013-03-20 2014-09-30 주식회사 실바트 lid of cooker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960016269U (en) * 1994-11-10 1996-06-17 황인선 Safety valve for pressure cooker
KR200344726Y1 (en) * 2003-12-26 2004-03-18 우주보온공업주식회사 Cover for Vacuum-bottle
KR100539585B1 (en) 2004-02-05 2005-12-28 이동우 Push-type lid of pressure cooker
KR100675485B1 (en) * 2005-09-14 2007-01-30 권만현 Cooking pan
KR20140115241A (en) * 2013-03-20 2014-09-30 주식회사 실바트 lid of cooker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110553458A (en) * 2019-09-29 2019-12-10 海信容声(广东)冷柜有限公司 Pressure balancing device for refrigerator
KR102432028B1 (en) * 2022-05-10 2022-08-12 (주)스패로우 Air valve forming injection path and discharge path
KR20230157840A (en) * 2022-05-10 2023-11-17 주식회사 스패로우 Air valve for easy injection and discharge of air
KR102607361B1 (en) 2022-05-10 2023-11-29 (주)스패로우 Air valve for easy injection and discharge of air

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