CN109363500B - Safety pressure relief structure of sealed heating container - Google Patents

Safety pressure relief structure of sealed heating container Download PDF

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Publication number
CN109363500B
CN109363500B CN201811516598.4A CN201811516598A CN109363500B CN 109363500 B CN109363500 B CN 109363500B CN 201811516598 A CN201811516598 A CN 201811516598A CN 109363500 B CN109363500 B CN 109363500B
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China
Prior art keywords
cover
pressure
pressure relief
sealing
cover plate
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Application number
CN201811516598.4A
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Chinese (zh)
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CN109363500A (en
Inventor
岑延华
李学军
吴俊雄
王伟仁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Shangdea Electrical Appliance Co ltd
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Shangdi Intelligent Kitchen Guangdong Co ltd
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Priority to CN201811516598.4A priority Critical patent/CN109363500B/en
Publication of CN109363500A publication Critical patent/CN109363500A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/21—Water-boiling vessels, e.g. kettles
    • A47J27/21166—Constructional details or accessories
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/21—Water-boiling vessels, e.g. kettles
    • A47J27/21166—Constructional details or accessories
    • A47J27/21175—Covers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

The invention provides a safe pressure relief structure of a sealed heating container, which comprises a sealing cover body, wherein the sealing cover body comprises an outer cover, a pressure relief inner cover and a ventilation upper cover; the outer cover is an outer shell body which is penetrated up and down; the pressure relief inner cover comprises a cover plate, the cover plate extends downwards at the outer edge of the cover plate to form a shielding ring, and a sealing ring is arranged at the outer edge of the cover plate or the outer edge of the shielding ring; the pressure relief inner cover is fixed in the outer cover, the lower edge of the shielding ring in the pressure relief inner cover is level with the lower edge of the outer cover, the ventilation upper cover is fixedly connected to the upper part in the outer cover through a non-sealing structure, and a certain gap is formed between the ventilation upper cover and the pressure relief inner cover to form an airflow channel; the cover plate is provided with a pressure release balancing device, an air pressure balancing device and a high-pressure air pressure installation protecting device. The invention has reasonable structure, can realize the pressure relief, the air pressure balance and the high-pressure protection of the sealed heating container, and is safe and reliable.

Description

Safety pressure relief structure of sealed heating container
[ field of technology ]
The invention relates to the technical field of pressure relief equipment, in particular to a safe pressure relief structure of a sealed heating container.
[ background Art ]
With the development of small household appliance industry, products such as electric heating cups, electric heating kettles and the like appear on the market. Because of having conveniently carrying, adaptation occasion advantage such as stronger, sealed electric heating container (such as plug-in type electric heating cup, on-vehicle electric heating cup, rich hydrogen drinking cup etc.) receives consumer's liking, and current sealed electric heating container generally includes cup body and bowl cover, is equipped with heating device in cup body bottom, during the use, can put through the power with heating device, for the water heating in the cup body. However, because the steam that produces when boiling can produce pressure in the cup body inner chamber, there is the potential safety hazard, therefore current sealed electrical heating container mostly can not heat water to boiling, even some electrical heating container can boil water, but in order to the pressure release, guarantee safety, can only adopt unsealed structure, just so probably appear leaking the condition, it is very inconvenient to use.
In view of the above problems, the applicant has proposed a solution.
[ invention ]
The invention aims to overcome the defects of the prior art, and provides a safe pressure relief structure of a sealed heating container, which can realize pressure relief, air pressure balance and high-pressure protection of the sealed heating container, and is safe and reliable.
In order to solve the technical problems, the invention adopts the following technical scheme:
the safe pressure relief structure of the sealed heating container comprises a sealing cover body, wherein the sealing cover body comprises an outer cover, a pressure relief inner cover and a ventilation upper cover; the outer cover is an outer shell body which is penetrated up and down; the pressure relief inner cover comprises a cover plate, the cover plate extends downwards at the outer edge of the cover plate to form a shielding ring, and a sealing ring is arranged at the outer edge of the cover plate or the outer edge of the shielding ring; the pressure relief inner cover is fixed in the outer cover, the lower edge of the shielding ring in the pressure relief inner cover is level with the lower edge of the outer cover, the ventilation upper cover is fixedly connected to the upper part in the outer cover through a non-sealing structure, and a certain gap is formed between the ventilation upper cover and the pressure relief inner cover to form an airflow channel; the cover plate is provided with a pressure release balancing device, an air pressure balancing device and a high-pressure air pressure installation protecting device.
In a further improvement scheme, the pressure relief balancing device comprises a first balancing hole arranged on the cover plate of the pressure relief inner cover, and a fixing ring is arranged on the surface of the cover plate above the first balancing hole; the fixed ring is internally provided with a fixed seat, the fixed seat comprises a sealing sheet with a bottom and a movable rod vertically connected to the sealing sheet, the sealing sheet is provided with a movable rod sealing plug, the inner diameter of the fixed ring is larger than the radial range of the movable rod sealing plug, the movable rod is provided with a reset spring, the upper end of the movable rod is of a hollow structure, the side wall of the upper end of the movable rod is provided with a first ventilation notch, and the top of the movable rod is provided with a second ventilation notch; a fixing plate is arranged at the top of the fixing ring, and an air hole is arranged on the fixing plate, wherein the air hole is insufficient for the return spring and the movable rod to pass through; the bottom and the upper part of the fixed ring are respectively provided with a sealing step, and the reset spring elastically drives the movable seat to keep moving downwards to drive so that the movable rod sealing plug sinks to the sealing step to block the first balance hole.
In a further improvement, the air pressure balancing device comprises a second balancing hole and a third balancing hole which are formed in the cover plate, fixing sleeves are respectively arranged on the surfaces of the cover plate above the second balancing hole and the third balancing hole in a protruding mode, and positive pressure balancing valves and negative pressure balancing valves are respectively arranged in the fixing sleeves.
In a further improvement, the high-pressure pneumatic installation protection device comprises a fourth balance hole arranged on the cover plate, and an elastic sealing pressure release plug is fixed in the fourth balance hole.
In a further improvement scheme, a fixed bridge is arranged above the pressure relief inner cover, and two sides of the fixed bridge are fixedly connected to the inner side of the outer cover; the top of the fixed ring is fixedly connected to the lower surface of the fixed bridge; the middle part of the fixed bridge is communicated with the air holes on the fixing piece from top to bottom.
Compared with the prior art, the invention has the beneficial effects that: a gap is arranged between the pressure release inner cover and the ventilation upper cover which are fixed in the outer cover to ensure that the pressure release inner cover is communicated with external air flow, a pressure release balancing device is arranged on a cover plate of the pressure release inner cover to dredge the air with pressure in the heating container to the outside so as to realize the pressure release work of the sealed heating container, an air pressure balancing device is arranged on the cover plate of the pressure release inner cover to realize the balance with the external air pressure when the sealed heating container is at high pressure or negative pressure, and a high-pressure air pressure installation protection device is arranged on the cover plate of the pressure release inner cover so as to realize the rapid pressure release of the high-pressure air when the sealed heating container is at high pressure, thereby achieving the aim of safety protection; the invention has reasonable structure, can realize the pressure relief, the air pressure balance and the high-pressure protection of the sealed heating container, and is safe and reliable.
The invention is described in further detail below with reference to the attached drawings and detailed description:
[ description of the drawings ]
FIG. 1 is a top view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the portion A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the portion B-B of FIG. 1;
FIG. 4 is an exploded view of an embodiment of the present invention;
fig. 5 is an enlarged view of a portion C in fig. 2.
[ detailed description ] of the invention
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
The orientations shown in the drawings are not to be construed as limiting the specific scope of the invention, and only as a reference to the preferred embodiments, variations in the positions or numbers of product components shown in the drawings or structural simplifications may be made.
The terms "connected" and "connected" as used in the specification and illustrated in the drawings refer to the components as being "connected" to each other, and are understood to mean fixedly connected or detachably connected or integrally connected; the connection can be directly connected or connected through an intermediate medium, and a person skilled in the art can understand the connection relationship according to specific situations to obtain a screwing or riveting or welding or clamping or embedding mode and the like to replace the modes in different embodiments in a proper mode.
Terms of orientation such as up, down, left, right, top, bottom, and the like, as well as orientations shown in the drawings, may be used for direct contact or contact by additional features between the components; such as directly above and obliquely above, or it merely represents above the other; other orientations may be understood by analogy.
The materials for manufacturing the components with the solid shapes shown in the specification and the drawings can be metal materials or nonmetal materials or other composite materials; the machining process adopted for the parts with solid shapes can be stamping, forging, casting, wire cutting, laser cutting, casting, injection molding, milling, three-dimensional printing, machining and the like; those skilled in the art can adaptively select or combine according to different processing conditions, costs and precision, but are not limited to the above materials and manufacturing processes.
The invention relates to a safe pressure relief structure of a sealed heating container, which is shown in figures 1, 2, 3, 4 and 5, and comprises a sealing cover body, wherein the sealing cover body comprises an outer cover 10, a pressure relief inner cover and a ventilation upper cover 40; the outer cover 10 is a shell body which penetrates up and down; the pressure relief inner cover comprises a cover plate 20, wherein the cover plate 20 extends downwards at the outer edge of the cover plate to form a shielding ring 30, and a sealing ring 50 is arranged at the outer edge of the cover plate 20 or the outer edge of the shielding ring 30; the pressure release inner cover is fixed in the outer cover 10, the lower edge of the shielding ring 30 in the pressure release inner cover is level with the lower edge of the outer cover 10, the ventilation upper cover 40 is fixedly connected to the upper part in the outer cover 10 through a non-sealing structure, and a certain gap is formed between the ventilation upper cover and the pressure release inner cover to form an airflow channel; the cover plate 20 is provided with a pressure release balancing device, an air pressure balancing device and a high-pressure air pressure installation protecting device. The technical scheme provided by the invention is matched with a heating container for use, and specifically, the sealing cover body is covered on the heating container to seal the heating container.
In the embodiment shown in fig. 2, 3, 4 and 5, the pressure relief balancing device comprises a first balancing hole 21 arranged on the cover plate 20 of the pressure relief inner cover, and a fixing ring 60 is arranged on the surface of the cover plate 20 above the first balancing hole 21; the fixed ring 60 is provided with a fixed seat, the fixed seat comprises a sealing sheet 61 provided with a bottom and a movable rod 62 vertically connected to the sealing sheet 61, the sealing sheet 61 is provided with a movable rod sealing plug 63, the inner diameter of the fixed ring 60 is larger than the radial range of the movable rod sealing plug 63, the movable rod 62 is provided with a return spring 64, the upper end of the movable rod 62 is of a hollow structure, the side wall of the upper end of the movable rod is provided with a first ventilation gap 65, and the top of the movable rod is provided with a second ventilation gap 66; a fixing plate is arranged at the top of the fixed ring 60, an air hole 67 is arranged on the fixing plate, and the air hole 67 is insufficient for the return spring 64 and the movable rod 62 to pass through; the bottom and the upper part of the fixed ring 60 are respectively provided with a sealing step 68, and the return spring 64 elastically drives the movable seat to keep moving downwards to drive the movable rod sealing plug 63 to sink to the sealing step 68 to block the first balance hole 21. When the air pressure in the sealed heating container is higher than the external air pressure, the air is flushed out from the first balance hole 21, the fixed seat in the fixed ring 60 is jacked up, so that the movable rod sealing plug 63 at the sealing step 68 is jacked up, the air enters the fixed ring 60 through the side edge of the movable rod sealing plug 63, then sequentially flows through the first ventilation notch 65 of the movable rod, the hollow part at the upper end of the movable rod, the second ventilation notch 66 of the movable rod and the ventilation hole 67 of the fixed seat to escape between the pressure release inner cover and the ventilation upper cover 40, finally flows to the outside from the gap of the ventilation upper cover 40, the pressure release work of the sealed heating container is completed, when the air pressure in the sealed heating container is balanced with the external air pressure, the air in the sealed heating container cannot be flushed out, and the reset spring 64 drives the movable rod sealing plug 63 to sink to the sealing step 68 to block the first balance hole 21, and the sealing cover body keeps a sealed state.
In the embodiment shown in fig. 2, 3, 4 and 5, the air pressure balancing device includes a second balancing hole 22 and a third balancing hole 23 formed on the cover plate 20, a fixing sleeve 70 is respectively protruded and extended on the surface of the cover plate 20 above the second balancing hole 22 and the third balancing hole 23, a positive pressure balancing valve 80 and a negative pressure balancing valve 90 are respectively arranged in the fixing sleeve 70, in the embodiment, the positive pressure balancing valve 80 and the negative pressure balancing valve 90 are both pressure releasing valves, the positive pressure balancing valve 80 is a positive pressure releasing valve mounting structure, and the negative pressure balancing valve 90 is a reverse pressure releasing valve mounting structure. When the air pressure in the sealed heating container is higher than the external air pressure and the pressure release balancing device is insufficient for quickly releasing the air in the sealed heating container to the outside, the high-pressure air in the sealed heating container exceeds the set pressure of the positive pressure balancing valve 80, the pressure release is automatically opened, and the high-pressure air in the heating container is released to the outside until the air pressure in the heating container reaches the balance with the external air pressure; when the external air pressure is higher than the air pressure in the sealed heating container, the external air pressure exceeds the set pressure of the negative pressure balance valve 90, the negative pressure balance valve 90 is automatically opened, and the external air is conducted into the heating container until the air pressure in the heating container reaches the balance with the external air pressure.
In the embodiment shown in fig. 2, 3 and 4, the high-pressure pneumatic installation protection device comprises a fourth balance hole 24 provided on the cover plate 20, and an elastic sealing pressure relief plug 100 is fixed in the fourth balance hole 24. When the air pressure in the sealed heating container is far higher than the external air pressure, and the pressure release balancing device and the positive pressure balancing valve 80 are not enough to release the air in the sealed heating container to the outside, the high-pressure air in the heating container directly pushes the elastic sealing pressure release plug 100 out of the fourth balancing hole 24, and the high-pressure air in the heating container is released out rapidly, so that the high-pressure air is prevented from damaging the sealing cover and the heating container, even bursting, causing injury to a user, and achieving the aim of safety protection.
In the embodiment shown in fig. 2, 3 and 4, a fixed bridge 110 is arranged above the pressure relief inner cover, and two sides of the fixed bridge 110 are fixedly connected to the inner side of the outer cover 10; the top of the fixing ring 60 is fixedly connected to the lower surface of the fixing bridge 110; the middle part of the fixing bridge 110 is communicated with the air holes 67 on the fixing plate from top to bottom.
In the invention, a gap is arranged between a pressure release inner cover and a ventilation upper cover 40 which are fixed in an outer cover 10 to ensure that the pressure release inner cover is communicated with external air flow, a pressure release balancing device is arranged on a cover plate 20 of the pressure release inner cover to dredge air with pressure in a heating container to the outside so as to realize the pressure release work of the sealed heating container, an air pressure balancing device is arranged on the cover plate 20 of the pressure release inner cover to realize the balance with the external air pressure when the sealed heating container is at high pressure or negative pressure, and a high-pressure air pressure installation protection device is arranged on the cover plate 20 of the pressure release inner cover so as to realize the rapid pressure release of the high-pressure air when the sealed heating container is at high pressure, thereby achieving the aim of safety protection; the invention has reasonable structure, can realize the pressure relief, the air pressure balance and the high-pressure protection of the sealed heating container, and is safe and reliable.
While the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications can be made therein without departing from the spirit and scope of the invention as defined in the following claims. Accordingly, the detailed description of the disclosed embodiments is to be taken only by way of illustration and not by way of limitation, and the scope of protection is defined by the content of the claims.

Claims (2)

1. The safe pressure relief structure of the sealed heating container is characterized by comprising a sealing cover body, wherein the sealing cover body comprises an outer cover, a pressure relief inner cover and a ventilation upper cover; the outer cover is an outer shell body which is penetrated up and down; the pressure relief inner cover comprises a cover plate, the cover plate extends downwards at the outer edge of the cover plate to form a shielding ring, and a sealing ring is arranged at the outer edge of the cover plate or the outer edge of the shielding ring; the pressure relief inner cover is fixed in the outer cover, the lower edge of the shielding ring in the pressure relief inner cover is level with the lower edge of the outer cover, the ventilation upper cover is fixedly connected to the upper part in the outer cover through a non-sealing structure, and a certain gap is formed between the ventilation upper cover and the pressure relief inner cover to form an airflow channel; the cover plate is provided with a low-pressure relief balancing device, an air pressure relief balancing device and a high-pressure air pressure installation protection device;
the low-pressure relief balancing device comprises a first balancing hole arranged on the cover plate of the pressure relief inner cover, and a fixing ring is arranged on the surface of the cover plate above the first balancing hole; the fixed ring is internally provided with a fixed seat, the fixed seat comprises a sealing sheet with a bottom and a movable rod vertically connected to the sealing sheet, the sealing sheet is provided with a movable rod sealing plug, the inner diameter of the fixed ring is larger than the radial range of the movable rod sealing plug, the movable rod is provided with a reset spring, the upper end of the movable rod is of a hollow structure, the side wall of the upper end of the movable rod is provided with a first ventilation notch, and the top of the movable rod is provided with a second ventilation notch; a fixing plate is arranged at the top of the fixing ring, and an air hole is arranged on the fixing plate, wherein the air hole is insufficient for the return spring and the movable rod to pass through; the bottom of the fixed ring is provided with a sealing step, and the reset spring elastically drives the movable seat to move downwards so that the movable rod sealing plug sinks to the sealing step to block the first balance hole;
the air pressure relief balancing device comprises a second balancing hole and a third balancing hole which are formed in the cover plate, wherein fixed sleeves are respectively and convexly extended on the surface of the cover plate above the second balancing hole and the third balancing hole, and a positive pressure balancing valve and a negative pressure balancing valve are respectively arranged in the fixed sleeves;
the high-pressure pneumatic installation protection device comprises a fourth balance hole arranged on the cover plate, and an elastic sealing pressure release plug is fixed in the fourth balance hole.
2. The safety pressure release structure of the sealed heating container according to claim 1, wherein a fixed bridge is arranged above the pressure release inner cover, and two sides of the fixed bridge are fixedly connected to the inner side of the outer cover; the top of the fixed ring is fixedly connected to the lower surface of the fixed bridge; the middle part of the fixed bridge is communicated with the air holes on the fixing piece from top to bottom.
CN201811516598.4A 2018-12-12 2018-12-12 Safety pressure relief structure of sealed heating container Active CN109363500B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811516598.4A CN109363500B (en) 2018-12-12 2018-12-12 Safety pressure relief structure of sealed heating container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811516598.4A CN109363500B (en) 2018-12-12 2018-12-12 Safety pressure relief structure of sealed heating container

Publications (2)

Publication Number Publication Date
CN109363500A CN109363500A (en) 2019-02-22
CN109363500B true CN109363500B (en) 2023-09-08

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Application Number Title Priority Date Filing Date
CN201811516598.4A Active CN109363500B (en) 2018-12-12 2018-12-12 Safety pressure relief structure of sealed heating container

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112067210B (en) * 2020-09-18 2021-06-04 绍兴金阳纺织有限公司 Cloth leakproofness detection device based on sealed protective clothing safety inspection
CN112545307B (en) * 2020-11-27 2021-09-03 珠海格力电器股份有限公司 Water cup cover and electric heating water cup

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007236404A (en) * 2006-03-03 2007-09-20 Zojirushi Corp Safety valve structure in pressure type rice cooker
CN203609262U (en) * 2013-11-26 2014-05-28 九阳股份有限公司 Safety electric pressure cooker with directional decompression function
CN205094151U (en) * 2015-08-19 2016-03-23 上海纯米电子科技有限公司 Electric rice cooker cover board with air bleeding valve and relief valve
CN205514083U (en) * 2016-03-14 2016-08-31 深圳艾美特科技股份有限公司 Pressure release safety device of electricity pressure gauge utensil
CN207604789U (en) * 2017-06-20 2018-07-13 佛山市顺德区美的电热电器制造有限公司 The pressure relief device and pressure cooker of pressure cooker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007236404A (en) * 2006-03-03 2007-09-20 Zojirushi Corp Safety valve structure in pressure type rice cooker
CN203609262U (en) * 2013-11-26 2014-05-28 九阳股份有限公司 Safety electric pressure cooker with directional decompression function
CN205094151U (en) * 2015-08-19 2016-03-23 上海纯米电子科技有限公司 Electric rice cooker cover board with air bleeding valve and relief valve
CN205514083U (en) * 2016-03-14 2016-08-31 深圳艾美特科技股份有限公司 Pressure release safety device of electricity pressure gauge utensil
CN207604789U (en) * 2017-06-20 2018-07-13 佛山市顺德区美的电热电器制造有限公司 The pressure relief device and pressure cooker of pressure cooker

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Effective date of registration: 20190404

Address after: 528425 Peace Road Section of Dongfu Fourth Road, Dongfeng Town, Zhongshan City, Guangdong Province (one of Li Mankai's factories)

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