CN111256121B - Fire cover for gas stove - Google Patents
Fire cover for gas stove Download PDFInfo
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- CN111256121B CN111256121B CN201811457000.9A CN201811457000A CN111256121B CN 111256121 B CN111256121 B CN 111256121B CN 201811457000 A CN201811457000 A CN 201811457000A CN 111256121 B CN111256121 B CN 111256121B
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- fire
- gas
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- fire cover
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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
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
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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
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention relates to a fire cover for a gas stove, which comprises a fire cover body, wherein a gas mixing cavity is formed on an annular top wall of the fire cover body, an inner ring wall and an outer ring wall, the inner ring wall and the outer ring wall vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall, a fire transfer chamber is formed on the upper surface of the fire cover body, and a fire ignition groove is formed on the top wall of the fire transfer chamber, and the fire cover is characterized in that: compared with the prior art, the invention has the advantages that through the through holes communicated with the gas mixing chamber are arranged in the ignition groove, the central lines of the through holes are intersected, and the gas flowing out from the through holes are oppositely flushed, so that the mixing uniformity of the gas and the air in the ignition groove is improved, the flow rate is reduced, and the flame stabilizing performance is improved.
Description
Technical Field
The invention relates to a burner of a gas cooker, in particular to a fire cover for a gas cooker.
Background
At present, most of traditional burner fire covers sold in the market are milled through a groove, namely a fire ignition groove is milled through the top of the fire cover body, and the burner fire cover is easy to deform due to the fact that the fire cover body is disconnected at the fire ignition groove, so that the fire ignition effect is influenced. For example, a similar fire transfer structure is disclosed in the chinese patent invention "gas furnace head with fire transfer device and flameout protection function" with patent No. 201220464214.0 (publication No. CN202813375U), wherein an outer ring fire spraying ring is provided with a plurality of outer ring fire spraying holes, and an outer ring fire transfer device is further provided on the outer ring fire spraying right, the outer ring fire transfer device is composed of a boss installed on the inner side wall of the outer ring fire spraying ring, an outer ring fire transfer hole and an outer ring fire transfer groove provided on the boss and the outer ring fire spraying ring, the outer ring fire transfer hole is communicated with the outer ring fire transfer groove, the outer ring fire transfer hole and the outer ring fire transfer groove are communicated with one outer ring fire spraying hole, so as to realize rapid fire transfer; the fire transfer groove of the fire transfer structure is open, the fire transfer groove is linear, namely the fire transfer groove is exposed on the surface of the outer ring fire cover, the design of the design has a benefit that the secondary air in the fire transfer groove is sufficiently supplemented, the open fire transfer groove can ensure the supplement of the secondary air during the flame combustion in the fire transfer groove, the flame combustion and the fire transfer are facilitated, and the open fire transfer groove has the characteristic of quick fire transfer, but has two disadvantages, the first open fire transfer groove and the open fire transfer groove are easy to cause the blockage of the fire transfer groove, namely soup flowing from the bottom of a pan is easy to flow into the fire transfer groove, the fire transfer performance is influenced after the blockage, and the main reason for the blockage maintenance of the current fire transfer groove is also included; secondly, the open fire transmission groove has high requirements on the air door of the stove, and after the air door is opened to a large extent, too much air can cause too high air speed, so that flame is separated or flame is released during combustion. For this reason, further improvements in the fire transfer slots of burner fire covers are desired.
Disclosure of Invention
The invention aims to solve the first technical problem of providing a fire cover for a gas stove, which can reduce the gas speed at a fire ignition part.
The second technical problem to be solved by the invention is to provide the fire cover for the gas stove, which can improve the fire transfer efficiency of the ignition part.
The technical scheme adopted by the invention for solving the technical problems is as follows: this a fire lid for gas-cooker, including the fire lid body, the cyclic annular roof of this fire lid body and the interior rampart, the outer rampart that extend downwards that incline or incline are vertical from the inboard edge of this cyclic annular roof, the outside edge of this fire lid body are formed with the gas mixing chamber, and the upper surface of fire lid body is formed with the fire transmission room from the radial outside extension of center towards the fire lid body of interior rampart to outer rampart, fire introduction groove has been seted up on the roof of fire transmission room, its characterized in that: at least one pair of through holes which are oppositely arranged and communicated with the gas mixing chamber are arranged on two inner side walls in an opening at the top of the ignition groove, and an included angle alpha formed by intersecting center lines of each pair of through holes is an obtuse angle.
Furthermore, the ignition groove is provided with a boss which is relatively isolated from the ignition groove, a gap is arranged between the bottom of the boss and the ignition groove, and at least one pair of through holes penetrate through the boss. The gas that does not flow out with the through-hole that the boss link up then flows through the interval between boss and the ignition groove to effectively reduce the gas speed that the through-hole flows out.
In order to ensure that the fuel gas flowing out of the through hole communicated with the boss can flow out of the inner side opening and the outer side opening on the two sides of the ignition groove, the top end of the boss is provided with a flow guide inclined plane which gradually inclines upwards from bottom to top.
In order to avoid that the through holes communicated with the gas mixing chamber are all communicated with the boss, no gas flows out from the space between the boss and the ignition groove, so that the phenomenon of fire transfer blocking possibly occurs, and the bottom of the ignition groove is provided with a gas inlet hole communicated with the gas mixing chamber on at least one side of the boss. The arrangement of the air inlet hole can ensure smooth fire transfer.
In order to prevent the gas outlet speed of the gas inlet hole from being too high, at least one side of the top opening of the ignition slot extends with a convex edge along the circumferential direction and corresponding to the position of the gas inlet hole, and the center line of the gas inlet hole is perpendicular to or intersected with the convex edge. The setting up of this chimb makes the gas that gets into the gas pocket can be with the chimb looks offset to make gas and air mix can be directly after the gas mixture with the chimb striking, improved gas, primary air, secondary air's mixing uniformity in the gas mixture, reduced the velocity of flow simultaneously again, improved the flame stabilization performance.
Further, the convex edge is connected with the flow guide inclined plane. In order to ensure that the fuel gas flowing out through the through hole communicated with the lug boss is uniformly distributed along the ignition groove from inside to outside.
Furthermore, the ignition groove is provided with an inner side opening facing the center of the fire cover body, and the fire transfer chamber is provided with an air outlet communicated with the air mixing chamber under the inner side opening. The air outlet hole can supplement air to the inner side of the ignition groove so as to avoid unsmooth fire transfer caused by insufficient air at the starting position of the ignition groove.
Preferably, the air outlet is inclined inwards and gradually approaches the inner side port from the air inlet end communicated with the air mixing chamber to the air outlet end communicated with the fire transfer chamber.
Furthermore, the outer ring wall is provided with at least two fire outlets communicated with the gas mixing cavity along the circumferential direction.
In order to stabilize the flame and fire outlet, at least two flame stabilizing holes communicated with the gas mixing cavity are formed in the outer ring wall below the fire outlet along the circumferential direction.
In order to stabilize the pressure and flame stabilizing holes, grooves which are intersected with the flame stabilizing holes and/or the flame outlet holes are formed in the outer ring wall below the flame outlet holes along the circumferential direction. The pressure stabilizing part formed by the groove can obviously improve the combustion efficiency of the gas stove while stabilizing flame and holding the flame stabilizing hole and the fire outlet hole.
Preferably, the center lines of each pair of through holes intersect at an included angle α, which is an obtuse angle. The included angle alpha is an obtuse angle, so that the strength of opposite impact of each pair of through holes is greater, and the included angle alpha can be an acute angle.
Compared with the prior art, the invention has the advantages that through the through holes communicated with the gas mixing chamber are arranged in the ignition slot, the central lines of the through holes are intersected, and the gas flowing out from the through holes are oppositely flushed, so that the mixing uniformity of the gas and the air in the ignition slot is improved, the flow rate is reduced, and the flame stabilizing performance is improved, thereby solving the problem that the ignition slot is an open type communicated with the outside, the flame transfer blocking phenomenon caused by the overhigh speed of the gas is easily generated, playing a good flame stabilizing role on the flame at the ignition slot, ensuring the secondary air supply of the internal flame transfer slot, namely ensuring the flame combustion in the flame transfer slot, and simultaneously enhancing the applicability of the opening degree of the air door, namely ensuring the flame transfer performance under the condition of larger opening degree of the air door.
Drawings
FIG. 1 is a schematic view of the structure of a burner fire cover in embodiment 1 of the invention;
FIG. 2 is a cross-sectional view at an angle of FIG. 1;
FIG. 3 is a cross-sectional view at another angle from FIG. 1;
FIG. 4 is a cross-sectional view of a portion of FIG. 1;
FIG. 5 is a schematic view of the structure of a burner fire cover in embodiment 2 of the invention;
FIG. 6 is a schematic view showing a burner cap according to example 2 of the present invention, with a partial bottom missing structure;
FIG. 7 is an angled cross-sectional view of FIG. 5;
fig. 8 is a cross-sectional view of a portion of fig. 5.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Example 1
As shown in FIGS. 1 to 4, the preferred embodiment of the present invention is shown. The fire cover for the gas stove in the embodiment comprises a fire cover body 1, wherein an annular top wall 11 of the fire cover body 1, an inner annular wall 12 and an outer annular wall 13 which vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall 11, and form a gas mixing cavity 14, a fire transfer chamber 2 is formed on the upper surface of the fire cover body 1 and radially extends outwards from the inner annular wall 12 to the outer annular wall 13 towards the center of the fire cover body 1, a fire ignition groove 21 is formed on the top wall of the fire transfer chamber 2, at least one pair of through holes 212 which are oppositely arranged and communicated with the gas mixing chamber 14 is formed in two inner side walls in a top opening 211 of the fire ignition groove 21, and an included angle alpha formed by intersecting center lines of each pair of the through holes 212 is an obtuse angle. Through the through holes 212 communicated with the gas mixing chamber 14 in the ignition groove 21, the included angle alpha of the intersection of the central lines of each pair of the through holes 212 is an obtuse angle, the gas flowing out from each pair of the through holes 212 is in opposite impact, so that the mixing uniformity of the gas and the air in the ignition groove 21 is improved, the flow rate is reduced, and the flame stabilizing performance is improved, thereby solving the problem that the ignition groove 21 is in an open type communicated with the outside, the flame transfer blocking phenomenon caused by the too high gas speed is easily generated, playing a good flame stabilizing role on the flame at the ignition groove 21, ensuring the secondary air supply of the internal ignition groove 21, namely ensuring the flame combustion in the ignition groove 21, and simultaneously enhancing the applicability of the opening of the air door, namely ensuring the flame transfer performance under the condition of larger opening of the air door.
In order to further effectively reduce the speed of the gas flowing out from the through hole 212, the ignition slot 21 is provided with a boss 3 which is relatively isolated from the ignition slot 21, a space 31 is arranged between the bottom of the boss 3 and the ignition slot 21, at least one pair of through holes 212 penetrate through the boss 3, the gas flowing out from the through hole 212 which is not penetrated through the boss 3 flows out from the space 31 between the boss 3 and the ignition slot 21, thereby effectively reducing the speed of the gas flowing out from the through hole 212, in order to ensure that the gas flowing out from the through hole 212 which is penetrated through the boss 3 can flow out to an inner port 213 and an outer port 214 at both sides of the ignition slot 21, the top end of the boss 3 is also provided with a flow guiding inclined plane which is gradually inclined upwards from bottom to top, preferably, in order to uniformly guide the gas to both sides from the through hole 212, the flow guiding inclined plane is provided with two first flow guiding inclined planes 32 which are respectively directed to the inner port 213 and a second flow guiding inclined plane 33 which is directed to the outer port 214, correspondingly, the bottom of the ignition slot 21 is provided with a first air inlet 215 and a second air inlet 216 communicated with the air mixing chamber 14 at two sides of the boss 3, wherein, taking the example that the through hole 212 is only provided with a pair and communicated with the boss 3 for expansion, the arrangement of the first air inlet 215 and the second air inlet 216 can ensure the smoothness of fire transfer so as to avoid that the through hole 212 communicated with the air mixing chamber 14 is completely communicated with the boss 3, and no gas flows out from the interval 31 between the boss 3 and the ignition slot 21, thereby possibly generating the phenomenon of fire transfer blocking.
In order to prevent the air outlet speed of the first air inlet hole 215 and the second air inlet hole 216 from being too fast, at least one side of the top opening 211 of the ignition slot 21 extends with a convex edge along the circumferential direction and the position corresponding to the air inlet hole, the center line of the air inlet hole is perpendicular to or intersected with the convex edge, in the embodiment, preferably, the convex edge extends with the convex edge along the circumferential direction at both sides of the top opening 211 of the ignition slot 21, namely, the convex edge is the first convex edge 4 and the second convex edge 5 respectively, wherein the first convex edge 4 and the first air inlet hole 215 are opposite to each other, the second convex edge 5 and the second air inlet hole 216 are opposite to each other, and after the gas and the air entering from the first air inlet hole 215 and the second air inlet hole 216 are mixed into the mixed gas, the mixed gas and the mixed gas can directly collide with the first convex edge 4 and the second convex edge 5, so that the mixing uniformity of the gas, the primary air and the secondary air in the mixed gas is improved, and the flow rate is reduced, and the flame stabilizing performance is improved; and first chimb 4 is connected with first water conservancy diversion inclined plane 32, and second chimb 5 is connected with second water conservancy diversion inclined plane 33, makes the gas that flows out through the through-hole 212 that link up with boss 3 inwards water conservancy diversion gas through first chimb 4, first water conservancy diversion inclined plane 32 from inside to outside, and second chimb 5, the outside water conservancy diversion gas of second water conservancy diversion inclined plane 33 to make the gas evenly distributed of ignition groove 21. In addition, the ignition slot 21 has an inner side port 213 facing the center of the fire cover body 1, the fire transfer chamber 2 is provided with an air outlet 22 communicating with the air mixing chamber 14 under the inner side port 213, the air outlet 22 can supplement air to the inner side of the ignition slot 21 to avoid unsmooth fire transfer caused by insufficient air at the beginning of the ignition slot 21, and preferably, the air outlet 22 is inclined inwards and gradually approaches the inner side port 213 from the air inlet 221 communicating with the air mixing chamber 14 to the air outlet 222 communicating with the fire transfer chamber 2.
Finally, the outer annular wall 13 is circumferentially provided with a plurality of flame outlets 131 communicated with the gas mixing chamber 14, for stabilizing the flame, the outer annular wall 13 is circumferentially provided with a plurality of flame stabilizing holes 132 communicated with the gas mixing chamber 14 below the flame outlets 131, and for stabilizing the pressure and stabilizing the flame, the outer annular wall 13 is circumferentially provided with grooves 133 intersecting the flame outlets 131 and the flame stabilizing holes 132 below the flame outlets 131, the flame stabilizing holes 132 and the flame outlets 131 penetrate the grooves 133, and the pressure stabilizing part formed by the grooves 133 can significantly improve the combustion efficiency of the gas stove while stabilizing the flame and stabilizing the flame, the flame and the flame outlets 132 and 131.
Example 2
Similar to the structure of example 1, except that: the top opening 211 of the ignition slot 21 in the fire cover body 1 has a plurality of pairs of through holes 212 which are oppositely arranged and communicated with the air mixing chamber 14 on two inner side walls, and the intersection angle alpha of the center lines of each pair of through holes 212 is an obtuse angle. Through the through holes 212 communicated with the gas mixing chamber 14 in the ignition groove 21, the included angle alpha formed by the intersection of the center lines of each pair of the through holes 212 is an obtuse angle, the gas flowing out from each pair of the through holes 212 is in opposite impact, so that the mixing uniformity of the gas and the air in the ignition groove 21 is improved, the flow rate is reduced, and the flame stabilizing performance is improved, as shown in fig. 5-8.
Claims (9)
1. The utility model provides a fire lid for gas-cooker, including fire lid body (1), cyclic annular roof (11) of this fire lid body (1) and from the inboard edge of this cyclic annular roof (11), outer edge vertical or slope downwardly extending's interior rampart (12), outer rampart (13) are formed with and mix gas chamber (14), and the upper surface of fire lid body (1) is formed with to pass fire room (2) from interior rampart (12) to outer rampart (13) radially outwards extend towards the center of fire lid body (1), fire leading groove (21) have been seted up on the roof of passing fire room (2), its characterized in that: two opposite inner side walls in a top opening (211) of the ignition slot (21) are provided with at least one pair of through holes (212) which are oppositely arranged and communicated with the gas mixing chamber (14), the center lines of each pair of through holes (212) are intersected, the ignition slot (21) is provided with a boss (3) which is oppositely isolated from the ignition slot (21), a space (31) is arranged between the bottom of the boss (3) and the ignition slot (21), and at least one pair of through holes (212) penetrates through the boss (3); the top end of the boss (3) is provided with flow guide inclined planes (32, 33) which are gradually inclined upwards from bottom to top, and the bottom of the ignition groove (21) is provided with air inlet holes (215, 216) communicated with the air mixing chamber (14) at least one side of the boss (3).
2. Fire cover for gas cookers according to claim 1, characterized in that: at least one side of the top opening (211) of the ignition slot (21) extends with convex edges (4, 5) along the circumferential direction and corresponding to the positions of the air inlet holes (215, 216), and the center lines of the air inlet holes (215, 216) are perpendicular to or intersected with the convex edges (4, 5).
3. Fire cover for gas cookers according to claim 2, characterized in that: the convex edges (4, 5) are connected with the diversion inclined surfaces (32, 33).
4. The fire cover for the gas range according to any one of claims 1 to 3, wherein: the ignition groove (21) is provided with an inner side port (213) facing the center of the fire cover body (1), and the fire transfer chamber (2) is provided with an air outlet (22) communicated with the air mixing chamber (14) below the inner side port (213).
5. Fire cover for gas cookers according to claim 4, characterized in that: the air outlet hole (22) is inclined inwards from an air inlet end (221) communicated with the air mixing chamber (14) to an air outlet end (222) communicated with the fire transfer chamber (2) and gradually approaches to the inner side port (213).
6. Fire cover for gas cookers according to claim 5, characterized in that: the outer annular wall (13) is provided with at least two fire outlets (131) communicated with the gas mixing cavity (14) along the circumferential direction.
7. Fire cover for gas cookers according to claim 6, wherein: the outer ring wall (13) is provided with at least two flame stabilizing holes (132) communicated with the gas mixing cavity (14) along the circumferential direction below the fire outlet hole (131).
8. Fire cover for gas cookers according to claim 7, wherein: the outer ring wall (13) is provided with a groove (133) which is intersected with the flame stabilizing hole (132) and/or the fire outlet hole (131) along the circumferential direction below the fire outlet hole (131).
9. The fire cover for the gas range according to any one of claims 1 to 3, wherein: the center lines of each pair of through holes (212) are intersected to form an included angle alpha, and the included angle alpha is an obtuse angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457000.9A CN111256121B (en) | 2018-11-30 | 2018-11-30 | Fire cover for gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457000.9A CN111256121B (en) | 2018-11-30 | 2018-11-30 | Fire cover for gas stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111256121A CN111256121A (en) | 2020-06-09 |
| CN111256121B true CN111256121B (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811457000.9A Active CN111256121B (en) | 2018-11-30 | 2018-11-30 | Fire cover for gas stove |
Country Status (1)
| Country | Link |
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| CN (1) | CN111256121B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076310B (en) * | 2020-08-12 | 2022-10-14 | 宁波方太厨具有限公司 | Fire cover and combustor comprising same |
| CN111780113B (en) * | 2020-08-28 | 2021-06-11 | 宁波方太厨具有限公司 | Outer ring fire lid and gas-cooker |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110082343A (en) * | 2010-01-11 | 2011-07-19 | (주)펠리테크 | Gas range oven with a covering container |
| CN202813375U (en) * | 2012-09-12 | 2013-03-20 | 东莞市海新金属科技有限公司 | Gas furnace head with fire transferring device and flame-out protection function |
| KR102297799B1 (en) * | 2014-12-17 | 2021-09-03 | 엘지전자 주식회사 | Burner |
| CN106895405B (en) * | 2015-12-18 | 2020-07-14 | 博西华电器（江苏）有限公司 | Fire cover of gas burner, gas burner and gas stove |
| CN106122958B (en) * | 2016-06-21 | 2018-08-10 | 广东美的厨房电器制造有限公司 | Burner assembly and gas-cooker |
| CN206803229U (en) * | 2016-08-27 | 2017-12-26 | 嵊州市德贝电气有限公司 | A kind of gas-cooker |
| CN206112934U (en) * | 2016-10-31 | 2017-04-19 | 宁波方太厨具有限公司 | Burner fire cap of gas cooking utensils |
| CN206449644U (en) * | 2016-12-26 | 2017-08-29 | 杭州老板电器股份有限公司 | A kind of novel multiple angle intersects the fire cover of igniting structure |
| CN207407343U (en) * | 2017-09-28 | 2018-05-25 | 广东美的厨房电器制造有限公司 | Fire cover and burner |
| CN207907241U (en) * | 2018-01-31 | 2018-09-25 | 宁波方太厨具有限公司 | A kind of burner fire lid of gas cooker |
-
2018
- 2018-11-30 CN CN201811457000.9A patent/CN111256121B/en active Active
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| CN111256121A (en) | 2020-06-09 |
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