CN112747338B - Fire cover for gas stove and gas stove - Google Patents
Fire cover for gas stove and gas stove Download PDFInfo
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- CN112747338B CN112747338B CN202110017556.1A CN202110017556A CN112747338B CN 112747338 B CN112747338 B CN 112747338B CN 202110017556 A CN202110017556 A CN 202110017556A CN 112747338 B CN112747338 B CN 112747338B
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- fire
- fire cover
- fire protection
- gas
- hole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cookers (AREA)
Abstract
The invention discloses a fire cover for a gas cooker and the gas cooker. The fire cover for the gas cooker comprises a fire cover main body, wherein the fire cover main body is provided with a gas mixing chamber with a downward opening, a main fire hole communicated with the gas mixing chamber from the side surface and a fire protection hole communicated with the gas mixing chamber from the side surface; the upper end of fire lid main part forms the waterproof eaves of one-level with the position that protects fire hole correspondence along radial outside protrusion, and on the horizontal projection, the outward flange of the waterproof eaves of one-level is located the outside of the outward flange of the waterproof eaves of second grade. According to the invention, the blockage of the fire protection hole is effectively avoided, and the fire protection effect is ensured; and the radiating fins are arranged to prevent the ceramic film from generating obvious color change phenomenon due to long service life, so that the radiating performance is improved, the preheating effect on fuel gas is improved, the heat is fully utilized, and the improvement of the heat efficiency is facilitated.
Description
Technical Field
The invention relates to a fire cover for a gas cooker and the gas cooker.
Background
One of the main reasons affecting the maintenance rate of the gas stove is unstable fire protection, which is often caused by the blockage of the fire protection hole. Therefore, in consideration of market demands, it is necessary to design a fire cover of a burner of a household cooker, which can effectively prevent the fire protection hole from being blocked to cause maintenance. Meanwhile, because the inner fire cover is small in size, the condition of poor heat dissipation generally exists, and the ceramic film on the inner fire cover generates obvious color change phenomenon due to long service time.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art and provide a fire cover for a gas cooker and the gas cooker.
The invention solves the technical problems through the following technical scheme:
a fire cover for a gas cooker comprises a fire cover main body, wherein the fire cover main body is provided with a gas mixing chamber with a downward opening, a main fire hole communicated with the gas mixing chamber from the side surface and a fire protection hole communicated with the gas mixing chamber from the side surface; the upper end of the fire cover main body and the position corresponding to the fire protection hole protrude outwards along the radial direction to form a first-stage waterproof eaves, and the outer edge of the first-stage waterproof eaves is located on the outer side of the outer edge of the second-stage waterproof eaves in horizontal projection.
In this scheme, protect the hole of protecting a fire through setting up and waterproof eaves and the waterproof eaves of second grade, effectively avoided the jam condition in the hole of protecting a fire, guaranteed the effect of protecting a fire.
Preferably, the side surface of the fire cover main body is provided with a first section and a second section in sequence from top to bottom, and the lower end of the first section is positioned on the outer side of the upper end of the second section in the radial direction of the fire cover main body; the fire protection device is characterized in that the main fire hole is formed in the first section and/or the second section, the fire protection hole is formed in the second section, and the second-stage waterproof eaves are formed in the first section.
In this scheme, first segmentation and second segmentation set up from top to bottom, and stagger each other in the footpath of fire lid main part, have realized layer upon layer degressive effect, and the effect of anti-overflow liquid has been played to the second segmentation to first segmentation from this.
Preferably, the lower end of the first section partially protrudes downwards to form the secondary waterproof eaves.
In this scheme, the structure that utilizes first segmentation self sets up the waterproof eaves of downward convex second grade, is convenient for process when guaranteeing to prevent stifled effect.
Preferably, the fire protection holes comprise a main fire protection hole and auxiliary fire protection holes positioned at two sides of the main fire protection hole, and the aperture of each auxiliary fire protection hole is smaller than that of the main fire protection hole; the lower extreme of the waterproof eaves of second grade with the position that main fire protection hole corresponds is provided with the breach, supplementary fire protection hole's part or whole just to the waterproof eaves of second grade.
In the scheme, when the main fire protection hole normally works, the auxiliary fire protection hole can play a flame stabilizing effect on the main fire protection hole and ensure the fire protection effect of the main fire protection hole by supplementing enough gas; when the main fire protection hole is blocked, the auxiliary fire protection hole can heat the thermocouple, so that the thermocouple can normally work, and the reliability of the fire cover is improved.
Preferably, the main fire protection hole is gradually inclined downwards from one end close to the gas mixing chamber to the other end.
In this scheme, will mainly protect the fire hole to set up to the structure of slope, can prevent to get into the overflow in main hole of protecting the fire to the inboard flow of fire lid main part for the overflow in the main hole of protecting the fire and near evaporates gradually, thereby has guaranteed that main hole of protecting the fire normally works.
Preferably, the inclination angle of the main fire protection hole is 10 degrees, so that sufficient gas can be ensured to flow out while the blockage is prevented.
Preferably, a flame stabilizing groove with a downward opening is arranged between the lower end of the first section and the upper end of the second section, and the fire protection hole is partially or completely positioned on the flame stabilizing groove.
In this scheme, the gas in the steady flame inslot has the steady flame effect to the fire protection hole to fire protection performance has been promoted.
Preferably, the outer surface of the second section gradually shrinks from the lower end to the upper end towards the center of the fire cover main body, and/or the wall surface of the flame holding groove located on the first section gradually shrinks from the lower end to the upper end towards the center of the fire cover main body.
In this scheme, the structure in flame stabilizing groove makes the fire lid main part can arrange more main fire holes in limited space, has reduced the diameter of fire lid main part simultaneously, and the main fire hole of second subsection shortens relatively to the distance in flame stabilizing groove, reduces flame to the heating in flame stabilizing groove, makes fire lid main part heated area reduce, is favorable to reducing the temperature that the fire covered the main part, helps the life-span of thermal efficiency and fire lid simultaneously.
Preferably, the first subsection and the second subsection are respectively provided with a plurality of main fire holes, the flame stabilizing groove is communicated with the main fire holes on the first subsection, and the second subsection is also provided with a plurality of flame stabilizing holes communicated with the gas mixing chamber.
In this scheme, through setting up the flame stabilizing groove to such a structure, improved the flame stabilizing effect.
Preferably, the periphery of the upper end of the fire cover main body protrudes outwards along the radial direction to form a protective brim, and the primary waterproof brim is a part of the protective brim or is arranged on the protective brim.
In this scheme, set up the protection brim of a hat all around the fire lid main part, all have the anti-overflow effect to whole first segmentation to protected the main fire hole not to be plugged up by the discharge.
Preferably, the middle area of the upper end of the fire cover main body is sunken downwards to form a buffer groove, and the protective brim is provided with a drainage groove communicating the buffer groove with the outside.
In this scheme, the dashpot has to block and accept the effect to the overflow, and the discharge chute can lead the overflow in the dashpot to the outside of fire lid to make the overflow avoid the position in guarantor's fire hole, further solved the problem of the jam in guarantor's fire hole.
Preferably, the drainage groove is provided with a flow guide surface, the flow guide surface gradually extends downwards and outwards from one end close to the center of the fire cover main body to the other end, and the flow guide surface is a curved surface or a plane.
In this scheme, the drainage is led and is guided the discharge to the drainage face, is convenient for smoothly derive the discharge.
Preferably, the fire cover main body further comprises radiating fins positioned on the upper end face of the gas mixing chamber, and the radiating fins are arranged at intervals.
In this scheme, fin structure material is few, and the radiating effect is good, can effectively improve the ceramic membrane discoloration phenomenon of inner ring fire lid.
Preferably, the surface of the heat sink faces the fire protection hole.
Preferably, the thickness of the heat sink is gradually reduced from the upper end to the lower end; thereby obtaining a better heat dissipation effect with a smaller mass of material.
Preferably, a gap is kept between the two ends of the radiating fin and the inner wall surface of the gas mixing chamber, so that the circulation of the fuel gas is ensured.
A gas hob including a fire cover for a gas hob as claimed in any one of the preceding claims.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
according to the invention, the fire protection hole is protected by the arrangement of the waterproof eaves and the secondary waterproof eaves, so that the blocking condition of the fire protection hole is effectively avoided, and the fire protection effect is ensured. The contact area of the fire cover main body and the fuel gas is increased by arranging the radiating fins, so that the radiating performance is improved, the preheating effect of the fuel gas is improved, the heat is fully utilized, and the improvement of the heat efficiency is facilitated. The radiating fins also ensure that the integral temperature of the inner ring fire cover is in a reasonable range, prevent the ceramic membrane from generating obvious color change phenomenon due to long service life, and effectively prolong the service life of the fire cover.
Drawings
FIG. 1 is a partial schematic structural view of a fire cover for a gas cooker according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a fire cover for a gas cooker according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a fire cover for a gas cooker according to an embodiment of the present invention;
FIG. 4 is a top view of a fire cover for a gas cooker according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a fire cover for a gas cooker according to an embodiment of the present invention.
Description of reference numerals:
fire lid main body 100
Main fire-protecting hole 31
Auxiliary fire-protecting hole 32
First-level waterproof eaves 4
Two-stage waterproof eaves 5
Protective hat brim 9
Detailed Description
The present invention is further illustrated by the following examples, but is not limited thereby in the scope of the examples described below.
Please refer to fig. 1-5 for understanding. The embodiment of the invention provides a fire cover for a gas cooker, which comprises a fire cover main body 100, wherein the fire cover main body 100 is provided with a gas mixing chamber 1 with a downward opening, a main fire hole 2 communicated with the gas mixing chamber 1 from the side surface, and a fire protection hole 3 communicated with the gas mixing chamber 1 from the side surface. The fuel gas and the air are injected into the gas mixing chamber 1; in the working process, the fuel gas in the gas mixing chamber 1 is sprayed out from the main fire hole 2 and is combusted, the flame generated at the fire protection hole 3 heats the thermocouple, and the fire protection hole 3 is in a fire protection state.
The side of fire lid main part 100 is equipped with the waterproof eaves 5 of second grade that is located the 3 outsides of protecting fire hole, and the waterproof eaves 5 of second grade is set up to be used for blockking that the overflow flows to protecting fire hole 3 or to the overflow drainage and make it avoid protecting fire hole 3 to prevent to protect fire hole 3 to be blockked up by the overflow. The secondary waterproof eaves 5 are positioned at the outer side of the fire protection hole 3 in the radial direction of the fire cover main body 100, and can be partially positioned above the fire protection hole 3 or completely positioned above the fire protection hole 3 in the axial direction of the fire cover main body 100 so as to block or guide overflowing liquid above the fire protection hole 3; the second-level waterproof eaves 5 may gradually extend outward from the side of the fire cover main body 100, may gradually extend outward and downward from the side of the fire cover main body 100, and may also directly extend vertically downward along the side of the fire cover main body 100. The upper end of the fire cover main body 100 and the position corresponding to the fire protection hole 3 are protruded outwards along the radial direction to form a first-level waterproof eaves 4, so that overflowing liquid can be accepted or drained, and the anti-blocking effect is further improved. On horizontal projection, the outer edge of the waterproof eaves 4 of one-level is located the outside of the outer edge of the waterproof eaves 5 of second grade to block the waterproof eaves 5 of second grade of the flow direction of overflow and fire protection hole 3.
As can be seen from the above, in the embodiment of the present invention, the first-stage waterproof eaves 4 are disposed at the upper end of the fire cover main body 100 to receive or guide the spilled liquid, and the second-stage waterproof eaves 5 are disposed at the side of the fire protection hole 3 to block or guide the spilled liquid, so that the protection of the fire protection hole 3 against the spilled liquid is enhanced, and the fire protection performance is improved.
In the embodiment of the invention, the side surface of the fire cover main body 100 is sequentially provided with a first section 6 and a second section 7 from top to bottom, and in the radial direction of the fire cover main body 100, the lower end of the first section 6 is positioned at the outer side of the upper end of the second section 7; the first section 6 and the second section 7 may be provided integrally. Be equipped with main fire hole 2 on first subsection 6 and/or the second subsection 7, fire protection hole 3 is located second subsection 7, and waterproof eaves 5 of second grade is located first subsection 6. In the embodiment shown in fig. 1, the first segment 6 and the second segment 7 are provided with the main fire holes 2, and the lower end of the first segment 6 extends downward and partially shields the second segment 7, so that the overflow can be prevented from flowing to the second segment 7 by the configuration of the first segment 6.
In the embodiment of the invention, the lower end of the first section 6 partially protrudes downwards to form the secondary waterproof eaves 5, and the partial fire protection hole 3 is opposite to the lower end of the secondary waterproof eaves 5. The second-level waterproof eaves 5 can vertically extend downwards and also can extend outwards while extending downwards. Through setting up the waterproof eaves 5 of second grade to as above structure, can form good drainage effect to the overflow, make the overflow on 6 surfaces of first segmentation trickle down along the surface of the waterproof eaves 5 of second grade, not pass through fire protection hole 3 to prevent stifled effect and promoted fire protection performance have been improved.
In the embodiment of the present invention, the fire protection holes 3 include a main fire protection hole 31 and auxiliary fire protection holes 32 located at two sides of the main fire protection hole 31, and the aperture of the auxiliary fire protection holes 32 is smaller than that of the main fire protection hole 31. The upper end of main fire protection hole 31 and thermocouple is corresponding, and when main fire protection hole 31 appeared blockking up, supplementary fire protection hole 32 maintained the thermocouple and is in normal operating condition, guaranteed the fire protection performance, when main fire protection hole 31 was in normal operating condition, supplementary fire protection hole 32 guaranteed the sufficiency of gas, further promoted the fire protection performance, still had the steady flame effect simultaneously, guaranteed that fire protection hole 3 does not leave the flame.
The lower end of the second-stage waterproof eaves 5 is provided with a notch 51 corresponding to the main fire-protecting hole 31 so as to heat the thermocouple. The auxiliary fire protection hole 32 is partially or entirely aligned with the secondary waterproof eaves 5, so that fuel gas collides with the secondary waterproof eaves 5 and remains near the thermocouple, thereby improving the fire protection performance.
In the embodiment of the present invention, the main fire protection hole 31 is gradually inclined downward from one end close to the gas mixing chamber 1 to the other end, so that even though the spilled liquid flows to the main fire protection hole 31, the spilled liquid does not flow inward, and a small amount of spilled liquid staying in or near the main fire protection hole 31 evaporates after being heated, thereby effectively ensuring that the main fire protection hole 31 automatically returns to a normal state. In this embodiment, the inclination angle of the main fire-protecting hole 31 is 10 °.
In the embodiment of the invention, a flame stabilizing groove 8 with a downward opening is arranged between the lower end of the first section 6 and the upper end of the second section 7, and the fire protection hole 3 is partially or completely positioned on the flame stabilizing groove 8. The flame holding groove 8 can be understood as an annular groove. The gas flows out from the flame holding groove 8 and provides the gas for the main fire holes 2 on the first section 6 and the second section 7, so that the gas does not leave the flame.
In the embodiment of the present invention, the outer surface of the second segment 7 gradually shrinks toward the center of the fire lid main body 100 from the lower end to the upper end, and the outer surface of the second segment 7 may be configured as a curved surface. Specifically, the surface of the second segment 7 corresponding to the flame holding groove 8 is gradually contracted toward the center of the fire cover main body 100 from the lower end to the upper end, so that more fire holes can be arranged in a limited space while reducing the diameter of the fire cover main body 100. The distance from the main fire hole 2 on the second section 7 to the flame stabilizing groove 8 is relatively shortened, the heating of flame to the position of the flame stabilizing groove 8 is reduced, the heating area of the fire cover main body 100 is reduced, the temperature of the fire cover main body 100 is favorably reduced, and meanwhile, the thermal efficiency is improved and the service life of the fire cover is prolonged.
The wall that is located first subsection 6 of flame stabilizing groove 8 is from the lower extreme to the upper end and is dwindled to the center of flame cover main part 100 gradually to can arrange more fire holes in limited space, reduced the diameter of flame cover main part 100 simultaneously, reduce the heating of flame to flame stabilizing groove 8 position, make flame cover main part 100 heated area reduce, be favorable to reducing the temperature of flame cover main part 100, help promoting the thermal efficiency and improve the flame cover life-span simultaneously.
In the embodiment of the invention, the first section 6 and the second section 7 are respectively provided with a plurality of main fire holes 2, the flame stabilizing groove 8 is communicated with the main fire holes 2 on the first section 6, and the second section 7 is also provided with a plurality of flame stabilizing holes communicated with the gas mixing chamber 1 at the flame stabilizing groove 8, so that the flame stabilizing effect on the main fire holes 2 is improved.
In the embodiment of the invention, the periphery of the upper end of the fire cover main body 100 is radially and outwardly protruded to form the protective visor 9, the primary waterproof visor 4 is a part of the protective visor 9, or the primary waterproof visor 4 is arranged on the protective visor 9.
In the embodiment of the present invention, the middle region of the upper end of the fire cover main body 100 is recessed downward to form the buffer slot 10, and the protective brim 9 is provided with the buffer slot
10 and a drain groove 11 communicating with the outside. The buffer tank 10 can receive the overflowing liquid, and the overflow tank 11 enables the overflowing liquid in the buffer tank 10 to flow to the outside of the fire cover. The position of the drainage groove 11 is staggered with the position of the first-level waterproof eaves 4, so that the overflowing liquid avoids the position of the fire protection hole 3.
The drainage groove 11 has a drainage surface 12, the drainage surface 12 gradually extends downward and outward from one end near the center of the fire lid main body 100 to the other end, and the drainage surface 12 is a curved surface or a flat surface. The drainage surface 12 guides the overflow out smoothly.
In the embodiment of the present invention, the fire cover main body 100 further includes heat dissipation fins 13 located on the upper end surface of the gas mixing chamber 1, and the heat dissipation fins 13 are arranged at intervals. The heat radiating fins 13 increase the contact area between the fire cover main body 100 and the fuel gas, thereby improving heat radiation performance, improving the preheating effect of the fuel gas, fully utilizing heat, and contributing to the improvement of heat efficiency. The radiating fins 13 also ensure that the overall temperature of the inner ring fire cover is within a reasonable range, and the service life of the fire cover can be effectively prolonged.
The surfaces of the heat radiating fins 13 are disposed opposite to the fire-protecting holes 3, and in one embodiment, the heat radiating fins 13 have four, and the heat radiating fins 13 are disposed at equal intervals, thereby improving the uniformity of the temperature of each portion of the fire cover main body 100.
The thickness of the radiating fins 13 is gradually reduced from the upper end to the lower end, the cross sections of the radiating fins 13 are arranged in a triangular mode, and a good radiating effect can be achieved under the condition of low weight.
Embodiments of the present invention also provide a gas cooker including a fire cover for a gas cooker as set forth in any of the above embodiments. The gas cooker may have only one fire cover, i.e. the fire cover for the gas cooker, or a plurality of fire covers, and wherein the fire cover for the gas cooker is used as an inner ring fire cover, and the other fire covers are arranged around the fire cover for the gas cooker.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (14)
1. A fire cover for a gas cooker comprises a fire cover main body, the fire cover main body is provided with a gas mixing chamber with a downward opening, a main fire hole communicated with the gas mixing chamber from the side surface, and a fire protection hole communicated with the gas mixing chamber from the side surface,
a secondary waterproof brim positioned outside the fire protection hole is arranged on the side surface of the fire cover main body, and the secondary waterproof brim is arranged to block overflow liquid from flowing to the fire protection hole or drain the overflow liquid and enable the overflow liquid to avoid the fire protection hole; the upper end of the fire cover main body and the position corresponding to the fire protection hole protrude outwards in the radial direction to form a first-stage waterproof brim, and the outer edge of the first-stage waterproof brim is positioned on the outer side of the outer edge of the second-stage waterproof brim in horizontal projection;
the fire protection holes comprise a main fire protection hole and auxiliary fire protection holes positioned at two sides of the main fire protection hole, and the aperture of each auxiliary fire protection hole is smaller than that of the main fire protection hole; the lower end of the second-level waterproof eaves is provided with a notch at a position corresponding to the main fire protection hole, and part or all of the auxiliary fire protection hole is opposite to the second-level waterproof eaves.
2. The fire cover for a gas cooker as claimed in claim 1, wherein a first section and a second section are provided in order from top to bottom on a side of the fire cover main body, and a lower end of the first section is located outside an upper end of the second section in a radial direction of the fire cover main body; the fire protection device is characterized in that the main fire hole is formed in the first section and/or the second section, the fire protection hole is formed in the second section, and the second-stage waterproof eaves are formed in the first section.
3. The fire cover for a gas cooker as set forth in claim 2, wherein a lower end of the first segment is partially protruded downward to form the secondary waterproof eaves.
4. The fire cover for a gas cooker as claimed in claim 1, wherein the main fire-holding hole is gradually inclined downward from one end near the gas mixing chamber to the other end.
5. The fire cover for a gas cooker as claimed in claim 4, wherein the angle of inclination of the main fire-holding hole is 10 °.
6. The fire cover for a gas cooker as set forth in claim 2, wherein a flame holding groove having a downward opening is provided between a lower end of the first segment and an upper end of the second segment, and the fire protection hole is partially or entirely provided in the flame holding groove.
7. The fire cover for a gas range according to claim 6, wherein an outer surface of the second section gradually converges toward a center of the fire cover main body from a lower end to an upper end, and/or a wall surface of the flame holding groove at the first section gradually converges toward the center of the fire cover main body from the lower end to the upper end.
8. The fire cover for a gas cooker as recited in claim 6, wherein said first segment and said second segment are respectively provided with a plurality of said main fire holes, said flame holding groove communicates with each main fire hole located on said first segment, said second segment is further provided with a plurality of flame holding holes communicating with said gas mixing chamber at said flame holding groove.
9. The fire cover for a gas cooker as claimed in claim 1, wherein the periphery of the upper end of the fire cover main body is protruded radially outward to form a protective visor, the primary waterproof visor is a part of the protective visor, or the primary waterproof visor is provided on the protective visor.
10. The fire cover for a gas range as set forth in claim 9, wherein a middle region of an upper end of the fire cover main body is depressed downward to form a buffer groove, and the protective visor is provided with a drainage groove communicating the buffer groove with the outside.
11. The fire cover for a gas range as set forth in claim 10, wherein the drainage groove has a flow guide surface extending gradually downward and outward from one end near the center of the fire cover main body to the other end, the flow guide surface being a curved surface or a flat surface.
12. A fire cover for a gas cooker as claimed in any one of claims 1 to 11, wherein said fire cover body further comprises fins located on an upper end surface of said plenum, each of said fins being spaced apart.
13. The fire cover for a gas cooker as recited in claim 12, wherein a surface of said heat radiating fin faces the fire protection hole;
and/or the thickness of the radiating fin is gradually reduced from the upper end to the lower end;
and/or a gap is kept between the two ends of the radiating fin and the inner wall surface of the air mixing chamber.
14. Gas hob, characterized in, that it comprises a fire cover for a gas hob according to any one of the claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017556.1A CN112747338B (en) | 2021-01-07 | 2021-01-07 | Fire cover for gas stove and gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017556.1A CN112747338B (en) | 2021-01-07 | 2021-01-07 | Fire cover for gas stove and gas stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112747338A CN112747338A (en) | 2021-05-04 |
| CN112747338B true CN112747338B (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110017556.1A Active CN112747338B (en) | 2021-01-07 | 2021-01-07 | Fire cover for gas stove and gas stove |
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| CN (1) | CN112747338B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006314665A (en) * | 2005-05-16 | 2006-11-24 | Hochiki Corp | Sprinkler fire-fighting equipment |
| CN208886782U (en) * | 2018-07-26 | 2019-05-21 | 宁波方太厨具有限公司 | A kind of burner fire lid |
| CN210197281U (en) * | 2019-03-21 | 2020-03-27 | 宁波方太厨具有限公司 | Burner for gas stove |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11100955A (en) * | 1997-09-26 | 1999-04-13 | Shigero Sasamoto | Gutter receiving device |
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| CN112747338A (en) | 2021-05-04 |
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