Outer ring fire cover, combustor and gas stove

Abstract

The utility model provides an outer ring fire cover, burner and gas stove, the outer ring fire cover comprises a fire cover body and a fire transfer groove, the fire cover body is provided with a fire transfer hole, the fire transfer groove comprises a plurality of vertically arranged fire transfer channels, any two adjacent fire transfer channels are communicated through a communication channel, and the fire transfer hole is communicated with the fire transfer channel. At least part of the fire transferring holes sequentially penetrate through the multiple fire transferring channels in the vertical direction, and in the circumferential direction of the fire cover body, the width size of the communicating channels is smaller than the width size of the fire transferring channels communicating with the communicating channels. Through the arrangement, the transmission speed of gas in the outer ring gas containing cavity into the fire transmission channels can be reduced on the whole, meanwhile, by means of the size design of the communicating channels and the fire transmission channels, the transmission speed of the gas can be further reduced in the mutual transmission process of the gas in the fire transmission channels, and the transmission efficiency of the gas is improved. And finally, the fuel gas is more stably ignited in the fire transfer groove, and the success rate of outer ring flame transfer is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cookers, in particular to an outer ring fire cover, a burner and a gas cooker. Background Art

[0002] Gas stoves are one of the most frequently used appliances in the kitchen. The burner is the combustion part of the gas stove. The size and stability of the flame ejected from the burner are important factors that determine the user experience.

[0003] The burner is generally provided with a fire cover structure and a combustion base. The fire cover structure includes an outer ring fire cover. The outer ring fire cover is covered on the combustion base so that the two form an outer ring gas containing chamber with a certain space. The gas is ejected from the nozzle, enters the outer ring gas containing chamber through the outer ring injector pipe, and then is ejected through the fire transfer holes opened on the outer ring fire cover and cooperates with the flame at the fire transfer groove, finally forming an outer ring flame to heat the cookware.

[0004] However, at present, when the gas in the outer ring gas containing cavity is transferred to the fire transfer groove through the fire transfer hole, the speed is relatively fast, and the flame formed in the fire transfer groove is unstable when being transferred on the outer ring fire cover, thereby reducing the success rate of the outer ring flame transfer and affecting the user's use. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defect of low success rate of outer ring flame transmission in the prior art, and to provide an outer ring fire cover, a burner and a gas cooker.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] An outer ring fire cover, comprising a fire cover body and a fire transfer groove, wherein the fire cover body is provided with fire transfer holes, wherein the fire transfer groove comprises a plurality of vertically arranged fire transfer channels, any two adjacent fire transfer channels are connected via a connecting channel, and at least part of the fire transfer holes are sequentially arranged through the plurality of fire transfer channels in the vertical direction;

[0008] In the circumferential direction of the fire cover body, the width of the connecting channel is smaller than the width of the fire transfer channel connected thereto.

[0009] In the present scheme, by setting the fire transfer groove as a plurality of vertically arranged fire transfer channels, any two adjacent fire transfer channels are connected by a connecting channel, and at least part of the fire transfer holes are sequentially arranged in the vertical direction through these fire transfer channels, the gas in the outer ring gas accommodating chamber can be transferred to the corresponding fire transfer channels through the fire transfer holes. This method can not only allow the gas to be directly transferred from the outer ring gas accommodating chamber to the corresponding connected fire transfer channels through the fire transfer holes, but also allow the gas to be transferred to each other in these fire transfer channels. On the whole, the speed of the gas in the outer ring gas accommodating chamber to be transferred to the fire transfer channels can be reduced. At the same time, in the circumferential direction of the fire cover body, the width dimension of the connecting channel is smaller than the width dimension of the fire transfer channel connected thereto, so that the transfer speed of the gas can be further reduced in the process of mutual transfer in these fire transfer channels, and finally the gas can be ignited more stably in the fire transfer groove, thereby improving the success rate of the outer ring flame transfer.

[0010] Furthermore, the communication channels between any two adjacent fire transfer channels are connected to each other at the same position in the circumferential direction of the fire cover body, and extend upward in the vertical direction to penetrate the fire cover body.

[0011] In the present scheme, the connecting passages between any two adjacent fire transfer passages are arranged at the same position in the circumferential direction of the fire cover body, and these connecting passages are interconnected and extend through the fire cover body, thereby forming a connecting passage similar to a straight line. This is more conducive to the full transfer and ignition of the gas in the fire transfer groove, and is also more convenient in processing and manufacturing.

[0012] Furthermore, an annular flame stabilizing groove is provided on the outer peripheral surface of the fire cover body along its circumferential direction, and the annular flame stabilizing groove is connected to at least one of the fire transfer channels.

[0013] In the present solution, by connecting the upper annular flame stabilizing groove on the outer surface of the fire cover body to at least one of the fire transfer channels, after the gas in the fire transfer channel is ignited by the flame, the annular flame stabilizing groove can be used to stabilize the flame, making the transmission of the outer ring flame on the fire cover body more stable, further improving the success rate of the outer ring flame transmission, and improving the user experience.

[0014] Furthermore, a plurality of circular fire holes are arranged around the fire cover body, and the number of the fire transfer channels is two. The upper fire transfer channel and the air outlet of the circular fire hole are located at the same horizontal height, and the lower fire transfer channel is connected to the annular flame stabilizing groove.

[0015] In the present scheme, two fire transfer channels are provided, and the two fire transfer channels are arranged vertically in parallel. The upper fire transfer channel and the air outlet of the circular fire hole are located at the same horizontal height. The circular fire hole is ignited by the fire transfer channel to ensure the smooth transmission of the outer ring flame. The lower fire transfer channel is connected to the annular flame stabilizing groove. The outer ring flame is stabilized by the fire transfer channel connected to the annular flame stabilizing groove to ensure the stability of the outer ring flame transmission.

[0016] Furthermore, there are multiple fire transfer holes, some of which are vertically disposed in sequence in the two fire transfer channels, and another part of which is vertically disposed in the fire transfer channel located below.

[0017] In the present solution, by setting the number of fire transfer holes to be multiple, according to actual needs, it is possible to design a part of the fire transfer holes to be sequentially arranged in the vertical direction in the two fire transfer channels to transfer gas to the two fire transfer channels at the same time, and the other part of the fire transfer holes to be only arranged in the vertical direction in the fire transfer channel located below, so that the gas is only transferred to the fire transfer channel below through the fire transfer holes, further reducing the transfer speed of the gas to the upper fire transfer channel, so as to form a more stable gas airflow in the upper fire transfer channel, thereby ensuring the success rate of flame transfer.

[0018] Furthermore, there are multiple fire transfer holes, and the multiple fire transfer holes are sequentially arranged in the multiple fire transfer channels in the vertical direction, and the multiple fire transfer holes are inclinedly arranged on the fire cover body.

[0019] In the present scheme, the number of fire transfer holes is set to be multiple, and the multiple fire transfer holes are sequentially arranged in the vertical direction in multiple fire transfer channels to realize gas transfer to the multiple fire transfer channels. At the same time, the multiple fire transfer holes are inclined on the fire cover body. When there is overflow on the fire cover body, the fire transfer holes can guide the overflow so that the overflow can flow and discharge smoothly without blocking the fire transfer holes and affecting the transmission of gas.

[0020] Furthermore, the inclination angles of the plurality of fire transfer holes on the fire cover body are all different.

[0021] In this solution, by setting the inclination angles of the multiple fire transfer holes on the fire cover body to different angles, the inclination angles of these fire transfer holes can be adjusted according to actual needs so that the angles at which the gas is ejected through these fire transfer holes meet actual needs.

[0022] Furthermore, the fire cover body is provided with an annular groove-shaped fire hole extending along the circumferential direction of the fire cover body, and the annular groove-shaped fire hole is located below the fire transfer groove in the vertical direction.

[0023] In the present scheme, an annular groove-shaped fire hole is provided on the fire cover body, and the annular groove-shaped fire hole is located below the fire transfer groove in the vertical direction. The flame transmitted by the fire transfer groove is used to ignite the gas at the annular groove-shaped fire hole, so that an annular flame is formed on the fire cover body, further increasing the size of the outer ring flame and improving the user experience.

[0024] Furthermore, a plurality of connecting ribs are provided on the fire cover body. In the circumferential direction of the fire cover body, a plurality of connecting ribs are spaced apart at the positions of the annular groove-shaped fire holes, and the spacing dimension between adjacent connecting ribs is greater than the extension length dimension of the connecting ribs.

[0025] In the present scheme, a number of connecting ribs are arranged at intervals at the position of the annular groove-shaped fire hole, and the fire cover structure is connected in the circumferential direction of the fire cover structure by utilizing these connecting ribs, thereby ensuring that the fire cover structure will not be broken at the position of the annular groove-shaped fire hole, and the spacing dimension between adjacent connecting ribs is larger than the extension length dimension of the connecting ribs in the circumferential direction of the fire cover structure, thereby avoiding the setting of the connecting ribs to interrupt the flame transmission of the annular groove-shaped fire hole.

[0026] A burner, characterized in that the burner comprises:

[0027] Burning Pedestal;

[0028] As described above, the outer ring fire cover is arranged on the combustion base and cooperates with the combustion base to form an outer ring gas containing cavity.

[0029] In this solution, by setting the outer ring fire cover as described above on the combustion base of the burner, the outer ring gas containing cavity formed by the outer ring fire cover and the combustion base cooperates with each other to store gas, which is conducive to the stored gas being ejected through the fire holes on the fire cover structure and forming a flame.

[0030] A gas cooker is characterized in that it comprises the burner as described above.

[0031] By applying the burner as described above to a gas cooker, the defect of low success rate of outer ring flame transmission in the gas cooker can be effectively solved.

[0032] The positive and progressive effects of the utility model are:

[0033] By setting the fire transfer groove as a plurality of vertically arranged fire transfer channels, any two adjacent fire transfer channels are connected by a connecting channel, and at least part of the fire transfer holes are sequentially arranged in the vertical direction in these fire transfer channels, the gas in the outer ring gas accommodating chamber can be transferred to the corresponding fire transfer channels through the fire transfer holes. This method can not only allow the gas to be directly transferred from the outer ring gas accommodating chamber to the corresponding connected fire transfer channels through the fire transfer holes, but also allow the gas to be transferred to each other in these fire transfer channels. On the whole, the speed of the gas in the outer ring gas accommodating chamber to be transferred to the fire transfer channel can be reduced. At the same time, in the circumferential direction of the fire cover body, the width of the connecting channel is smaller than the width of the fire transfer channel connected thereto, so that the transfer speed of the gas can be further reduced in the process of mutual transfer in these fire transfer channels, and finally the gas can be ignited more stably in the fire transfer groove, thereby improving the success rate of the outer ring flame transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the outer ring fire cover in one embodiment of the utility model.

[0035] Figure 2 for Figure 1 A partial enlarged schematic diagram in the middle.

[0036] Figure 3 It is a front schematic diagram of the overall structure of the outer ring fire cover in one embodiment of the utility model.

[0037] Figure 4 for Figure 3 A partial enlarged schematic diagram of point B in the middle.

[0038] Figure 5 It is a schematic diagram of the overall structure of the outer ring fire cover in one embodiment of the utility model.

[0039] Figure 6 for Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0040] Figure 7 It is a schematic diagram of the overall cross-sectional structure of the outer ring fire cover in one embodiment of the utility model.

[0041] Description of reference numerals:

[0042] Outer ring fire cover 1

[0043] Fire cover body 10

[0044] Fire hole 11

[0045] Annular flame stabilizing groove 12

[0046] Round fire hole 13

[0047] Ring groove fire hole 14

[0048] Connecting rib 15

[0049] Fire Transmission Slot 20

[0050] Fire channel 21

[0051] Communication channel 22 DETAILED DESCRIPTION

[0052] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0055] The present embodiment provides a gas stove, which includes a burner, and the burner includes a combustion base, and an inner ring fire cover and an outer ring fire cover 1 are arranged on the combustion base, and the combustion base cooperates with the inner ring fire cover and the outer ring fire cover 1 to form an inner ring gas containing chamber and an outer ring gas containing chamber, respectively, and the gas enters the inner ring gas containing chamber and the outer ring gas containing chamber through the ejection tube, respectively, and the gas in the inner ring gas containing chamber is ejected through the fire hole on the inner ring fire cover, and cooperates with the ignition needle to form an inner ring flame; the gas in the outer ring gas containing chamber is ejected through the fire hole on the outer ring fire cover 1, and forms an outer ring flame under the ignition of the inner ring flame. Among them, the present embodiment mainly involves the relevant structure of the outer ring fire cover 1, and the relevant structure of the inner ring fire cover can adopt the specific structure existing in the prior art, which will not be repeated.

[0056] like Figures 1 to 6 As shown, the outer ring fire cover 1 includes a fire cover body 10 and a fire transfer groove 20. The fire cover body 10 is provided with a fire transfer hole 11. The fire transfer groove 20 includes two vertically arranged fire transfer channels 21. The two fire transfer channels 21 are connected through a connecting channel 22. The fire transfer hole 11 is sequentially arranged in the vertical direction through the two fire transfer channels 21. In the circumferential direction of the fire cover body 10, the width dimension of the connecting channel 22 is smaller than the width dimension of the fire transfer channel 21 connected thereto.

[0057] Combination Figure 7 As shown, by setting the fire transfer groove 20 as two vertically arranged fire transfer channels 21, and the two fire transfer channels 21 are connected by a connecting channel 22, and the fire transfer holes 11 are sequentially arranged in the vertical direction through these fire transfer channels 21, the gas in the outer ring gas accommodating chamber can be transferred to the corresponding fire transfer channel 21 through the fire transfer holes 11. This method can not only allow the gas to be directly transferred from the outer ring gas accommodating chamber through the fire transfer holes 11 to the corresponding connected fire transfer channel 21, but also allow the gas to be transferred to each other in the two fire transfer channels 21. On the whole, the speed of the gas in the outer ring gas accommodating chamber to the fire transfer channel 21 can be reduced. At the same time, in the circumferential direction of the fire cover body 10, the width dimension of the connecting channel 22 is smaller than the width dimension of the fire transfer channel 21 connected thereto, so that the gas can be further reduced in the process of mutual transfer in these fire transfer channels 21. The transfer speed can finally be more stably ignited in the fire transfer groove 20, thereby improving the success rate of the outer ring flame transfer.

[0058] It should be noted that if Figure 2 and Figure 4As shown, in this embodiment, the number of the fire transmission channels 21 is two, and the two fire transmission channels 21 are arranged in the vertical direction. The connecting channel 22 between the two fire transmission channels 21 extends through the fire cover body 10 in the vertical direction, which is more conducive to the gas to be transmitted outward through the fire transmission groove 20, so as to be better ignited. However, in other embodiments, the number of the fire transmission channels 21 can also be set to other numbers, such as three or four, etc. These fire transmission channels 21 can be arranged in the vertical direction, and a connecting channel 22 is provided between two adjacent fire transmission channels 21, and the connecting channel 22 between two adjacent fire transmission channels 21 is interconnected at the same position in the circumferential direction of the fire cover body 10, and extends upward in the vertical direction through the fire cover body 10. Through this arrangement, a connecting channel 22 similar to a straight line can be formed, which is more conducive to the gas to be fully transmitted and ignited in the fire transmission groove 20, and is also more convenient in processing and manufacturing.

[0059] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an annular flame stabilizing groove 12 is also provided on the outer surface of the fire cover body 10 along its circumferential direction, and the annular flame stabilizing groove 12 is connected to the fire transfer channel 21 located below. By connecting the annular flame stabilizing groove 12 on the outer surface of the fire cover body 10 to a fire transfer channel 21, after the gas in the fire transfer channel 21 is ignited by the flame, the annular flame stabilizing groove 12 can be used to stabilize the flame, so that the transmission of the outer ring flame on the fire cover body 10 is more stable, further improving the success rate of the outer ring flame transmission, and improving the user experience. It should be noted that in other embodiments, the annular flame stabilizing groove 12 can also be connected to multiple fire transfer channels 21, or multiple annular flame stabilizing grooves 12 are provided to be connected to multiple fire transfer channels 21 respectively, without fixed restrictions.

[0060] Furthermore, a plurality of circular fire holes 13 are arranged around the fire cover body 10. In the two fire transfer channels 21, the upper fire transfer channel 21 and the gas outlet of the circular fire hole 13 are located at the same level, and the lower fire transfer channel 21 is connected to the annular flame stabilizing groove 12. Through this arrangement, the upper fire transfer channel 21 can be used to ignite the circular fire hole 13 to ensure the smooth transmission of the outer ring flame, and the lower fire transfer channel 21 can be used to connect to the annular flame stabilizing groove 12 to stabilize the outer ring flame and ensure the stability of the outer ring flame transmission.

[0061] like Figure 5 , Figure 6 and Figure 7As shown, the number of the fire transfer holes 11 in the outer ring fire cover 1 is specifically set to three, and the three fire transfer holes 11 are sequentially arranged in the vertical direction through the two fire transfer channels 21, and these fire transfer holes 11 are all inclinedly arranged on the fire cover body 10. Through this arrangement, the gas transfer to the two fire transfer channels 21 can be realized, and at the same time, the three fire transfer holes 11 are all inclinedly arranged on the fire cover body 10. When there is overflow on the fire cover body 10, the fire transfer holes 11 can guide the overflow so that the overflow can flow and discharge smoothly without blocking the fire transfer holes 11 and affecting the gas transfer. At the same time, the inclination angles of these fire transfer holes 11 on the fire cover body 10 are all different, and the inclination angles of these fire transfer holes 11 can be adjusted according to actual needs, so that the angle of the gas ejected through these fire transfer holes 11 meets the actual needs.

[0062] It should be noted that, in other embodiments, a part of the fire transfer holes 11 may be vertically pierced through two fire transfer channels 21 at a time, and another part of the fire transfer holes 11 may be vertically pierced through only the lower fire transfer channel 21. Specifically, according to actual needs, a part of the fire transfer holes 11 may be vertically pierced through two fire transfer channels 21 in sequence to transfer gas to the two fire transfer channels 21 at the same time, and another part of the fire transfer holes 11 may be vertically pierced through only the lower fire transfer channel 21, so that gas is transferred to the lower fire transfer channel 21 only through the fire transfer holes 11, further reducing the transfer speed of gas to the upper fire transfer channel 21, so as to form a more stable gas flow at the upper fire transfer channel 21, and ensure the success rate of flame transfer.

[0063] like Figures 1 to 7 As shown, the fire cover body 10 is also provided with an annular groove-shaped fire hole 14 extending in the circumferential direction of the fire cover body 10, and the annular groove-shaped fire hole 14 is located below the fire transfer groove 20 in the vertical direction. By providing the annular groove-shaped fire hole 14 on the fire cover body 10, the annular groove-shaped fire hole is located below the fire transfer groove 20 in the vertical direction, and the flame transmitted by the fire transfer groove 20 is used to ignite the gas at the annular groove-shaped fire hole 14, so that an annular flame is formed on the fire cover body 10, further increasing the size of the outer ring flame, and improving the user experience.

[0064] like Figure 5As shown, a plurality of connecting ribs 15 are also arranged on the back of the fire cover body 10. In the circumferential direction of the fire cover body 10, these connecting ribs 15 are arranged at intervals at the position of the annular groove-shaped fire hole 14, and the spacing dimension of adjacent connecting ribs 15 is greater than the extension length dimension of the connecting ribs 15. By arranging these connecting ribs 15 at intervals at the position of the annular groove-shaped fire hole 14, the fire cover structure is connected in the circumferential direction of the fire cover structure by using these connecting ribs 15, thereby ensuring that the fire cover structure will not be broken at the position of the annular groove-shaped fire hole 14, and the spacing dimension of adjacent connecting ribs 15 is greater than the extension length dimension of the connecting ribs 15 in the circumferential direction of the fire cover structure, thereby avoiding the setting of the connecting ribs 15 from interrupting the flame transmission of the annular groove-shaped fire hole 14.

[0065] In this embodiment, by placing the outer ring fire cover 1 as described above on the combustion base of the burner, the outer ring gas receiving cavity formed by the outer ring fire cover and the combustion base cooperates to store gas, which is conducive to the stored gas being ejected through the fire hole on the fire cover structure and forming a flame. At the same time, the burner is applied to the gas cooker to effectively solve the defect of low success rate of outer ring flame transmission in the gas cooker.

[0066] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. An outer ring fire cover, comprising a fire cover body and a fire transfer groove, wherein the fire cover body is provided with a fire transfer hole, characterized in that: The fire transfer groove includes a plurality of vertically arranged fire transfer channels, any two adjacent fire transfer channels are connected via a connecting channel, and at least part of the fire transfer holes are sequentially arranged in the plurality of fire transfer channels in the vertical direction; In the circumferential direction of the fire cover body, the width of the connecting channel is smaller than the width of the fire transfer channel connected thereto.

2. The outer ring fire cover according to claim 1, characterized in that: The communication channels between any two adjacent fire transfer channels are connected to each other at the same position in the circumferential direction of the fire cover body, and extend upward in the vertical direction to penetrate the fire cover body.

3. The outer ring fire cover according to claim 1, characterized in that: An annular flame stabilizing groove is also provided on the outer peripheral surface of the fire cover body along its circumferential direction, and the annular flame stabilizing groove is connected to at least one of the fire transfer channels.

4. The outer ring fire cover according to claim 3, characterized in that: A plurality of circular fire holes are arranged around the fire cover body, and the number of the fire transfer channels is two. The upper fire transfer channel and the air outlet of the circular fire hole are located at the same horizontal height, and the lower fire transfer channel is connected to the annular flame stabilizing groove.

5. The outer ring fire cover according to claim 4, characterized in that: There are multiple fire transfer holes, some of which are vertically disposed in sequence in the two fire transfer channels, and the other part of which are vertically disposed in the fire transfer channel located below.

6. The outer ring fire cover according to claim 1, characterized in that: There are multiple fire transfer holes, and the multiple fire transfer holes are sequentially arranged in the multiple fire transfer channels in the vertical direction, and the multiple fire transfer holes are inclinedly arranged on the fire cover body.

7. The outer ring fire cover according to claim 6, characterized in that: The inclination angles of the plurality of fire transfer holes on the fire cover body are all different.

8. The outer ring fire cover according to any one of claims 1 to 7, characterized in that: The fire cover body is provided with an annular groove-shaped fire hole extending along the circumferential direction of the fire cover body, and the annular groove-shaped fire hole is located below the fire transfer groove in the vertical direction.

9. The outer ring fire cover according to claim 8, characterized in that: The fire cover body is also provided with a plurality of connecting ribs. In the circumferential direction of the fire cover body, the plurality of connecting ribs are spaced apart at the positions of the annular groove-shaped fire holes, and the spacing dimension between adjacent connecting ribs is greater than the extension length dimension of the connecting ribs.

10. A burner, characterized in that: The burner comprises: Burning Pedestal; The outer ring fire cover as described in any one of claims 1 to 9 is arranged on a combustion base and cooperates with the combustion base to form an outer ring gas containing chamber.

11. A gas cooker, characterized in that: The gas cooker comprises the burner as claimed in claim 10.

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