Combustor and gas stove device

Abstract

The utility model belongs to the technical field of gas stoves, and discloses a burner and a gas stove device, the burner comprises a fire cover base, a flow dividing cover and an outer ring fire cover, the fire cover base is provided with a first air inlet, the flow dividing cover is arranged above the fire cover base in a covering mode to form a plurality of flow dividing channels in a surrounding mode, and the outer ring fire cover is provided with a second air inlet. The outer ring fire cover covers the fire cover base, the outer ring fire cover, the fire cover base and the flow dividing cover jointly define an annular outer ring air channel, one end of the flow dividing channel communicates with the first air inlet, the other end of the flow dividing channel communicates with the outer ring air channel, the flow dividing cover is provided with a first connecting base and a second connecting base, and the first connecting base is used for being connected with the fire cover base; the second connecting base is used for being connected with the outer ring fire cover, and the first connecting base and the second connecting base are both arranged at the communicating position of the branch gas flow channel and the outer ring gas channel. According to the burner, the fire leakage risk is reduced, meanwhile, the machining cost and the assembling difficulty are reduced, the internal sectional area of the outer ring air channel cannot be affected, the flowing smoothness of mixed gas is facilitated, and the burning efficiency of the gas stove device with the burner is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to a burner and a gas stove device. Background Art

[0002] A gas stove is a kitchen appliance that uses direct fire heating through the combustion of gas fuel. As an important component of a gas stove, the burner's main function is to mix the fuel and air and ignite them to produce a flame. In order to expand the combustion area, the burner usually has an inner ring flame and an outer ring flame, and the mixed gas is diverted by a diverter cover, and part of the gas is directed to the outer ring fire cover. In order to simplify the installation structure, the diverter cover is usually only fixed to the fire cover base by a positioning pin, which easily leads to a loose seal, causing fire leakage and affecting combustion efficiency. In order to solve this problem, some burners fix the mounting screws of the diverter cover in the outer ring air duct, but the screws will affect the cross-sectional area of ​​the outer ring air duct, affecting the flow of the mixed gas and causing incomplete combustion.

[0003] In addition, when installing the outer ring fire cover on the fire cover base, due to the presence of the diverter cover, the screw mounting columns on the outer ring fire cover need to pass through the diverter cover and extend to the fire cover base below. The longer mounting columns have higher requirements for processing technology, thereby increasing the processing cost of the outer ring fire cover and the difficulty of assembling the burner. Utility Model Content

[0004] One purpose of the present utility model is to provide a burner that can solve the problems of the existing burner's diverter cover mounting screws affecting the cross-sectional area of ​​the outer ring air duct, resulting in insufficient combustion, and the outer ring fire cover's screw mounting column extending too long, thereby increasing processing costs and burner assembly difficulty.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A burner is provided, including a fire cover base, a diverter cover and an outer ring fire cover, the fire cover base is provided with a first air inlet, the diverter cover is arranged above the fire cover base to enclose a plurality of diverter flow channels, the outer ring fire cover is arranged above the fire cover base and together with the fire cover base and the diverter cover encloses a ring-shaped outer ring air channel, one end of the diverter flow channel is connected to the first air inlet, and the other end is connected to the outer ring air channel, the diverter cover is provided with a first connecting seat and a second connecting seat, the first connecting seat is used to connect the fire cover base, and the second connecting seat is used to connect the outer ring fire cover, and the first connecting seat and the second connecting seat are both provided at the connection point between the diverter flow channel and the outer ring air channel.

[0007] In one embodiment, the plurality of flow diversion channels are arranged at intervals along the circumference of the diversion cover, and the diversion cover is provided with a plurality of first connecting seats and a plurality of second connecting seats, and the plurality of first connecting seats and the plurality of second connecting seats correspond one-to-one to the plurality of flow diversion channels.

[0008] In one embodiment, a plurality of the first connecting seats and a plurality of the second connecting seats are staggered along the circumference of the diverter cover.

[0009] In one embodiment, the fire cover base is provided with a first outer ring air groove and a plurality of first air dividing grooves that are interconnected, the diversion cover is provided with a plurality of second air dividing grooves, and the outer ring fire cover is provided with a second outer ring air groove. The plurality of first air dividing grooves and the plurality of second air dividing grooves correspond one to one and respectively enclose a plurality of the diversion flow channels, and the first outer ring air groove and the second outer ring air groove enclose the outer ring air channel.

[0010] In one embodiment, a first mounting seat is provided at the bottom of the first air distribution groove, the first mounting seat and the first connecting seat are abutted against each other at the end face, and a first fastener is detachably connected to the first mounting seat and the first connecting seat; a second mounting seat is provided at the bottom of the second outer ring air groove, the second mounting seat and the second connecting seat are abutted against each other at the end face, and a second fastener is detachably connected to the second mounting seat and the second connecting seat.

[0011] In one embodiment, a first ventilation gap is provided between the upper end surface of the first connecting seat and the bottom of the second outer ring air groove; and / or,

[0012] A second ventilation gap is defined between the lower end surface of the second connecting seat and the bottom of the first outer ring air groove.

[0013] In one embodiment, the fire cover base has an outer peripheral wall arranged around the outer periphery of the first outer ring air groove, a first conductive gap is provided between the outer side wall of the first connecting seat and the outer peripheral wall, and a second conductive gap is provided between the outer side wall of the second connecting seat and the outer peripheral wall.

[0014] In one embodiment, the first mounting seat has a first reinforcing rib, and the first reinforcing rib extends along the radial direction of the fire cover base to connect with the outer peripheral wall; and / or,

[0015] The first connecting seat and the second connecting seat are both provided with a second reinforcing rib, and the second reinforcing rib extends toward the second air distribution groove.

[0016] In one embodiment, a plurality of outer ring fire holes are provided on the outer ring fire cover, and the plurality of outer ring fire holes form a plurality of outer ring fire hole groups. Along the circumference of the outer ring fire cover, the plurality of outer ring fire hole groups are arranged at intervals, and there are avoidance portions between adjacent outer ring fire hole groups, and the avoidance portions face the diversion flow channel.

[0017] Another object of the present invention is to provide a gas stove device, which has a burner that can solve the problems of the existing burner's diverter cover mounting screws affecting the cross-sectional area of ​​the outer ring air duct, resulting in insufficient combustion, and the outer ring fire cover's screw mounting column extending too long, thereby increasing processing costs and burner assembly difficulty.

[0018] To achieve this purpose, the present invention adopts the following technical solutions on the other hand:

[0019] A gas stove device is provided, comprising the burner as described above.

[0020] Beneficial effects of the utility model:

[0021] The burner provided by the present invention has a diverter cover arranged above the fire cover base to enclose a plurality of diverter channels, and an outer ring fire cover is arranged above the fire cover base and together with the fire cover base and the diverter cover, encloses a ring-shaped outer ring air channel. One end of the diverter channel is connected to the first air inlet, and the other end is connected to the outer ring air channel. The mixed gas of fuel gas and air enters the plurality of diverter channels through the first air inlet, forming a diversion and entering the ring-shaped outer ring air channel. The diverter cover is provided with a first connecting seat and a second connecting seat. The first connecting seat is used to connect to the fire cover base, and the second connecting seat is used to connect to the outer ring fire cover. The first connecting seat and the second connecting seat are both arranged at the connection point between the diverter channel and the outer ring air channel. The diverter cover located in the middle is used as the assembly reference. The connection and installation of the diverter cover and the fire cover base, as well as the connection and installation of the diverter cover and the outer ring fire cover are respectively completed through the first connecting seat and the second connecting seat. This avoids the problem of the need to extend the installation column for direct connection between the outer ring fire cover and the fire cover base, reduces the processing technology requirements, and thus reduces the processing cost and assembly difficulty of the burner. The first connector connects the diverter cover to the base of the fire cover, while the second connector connects the diverter cover to the outer ring fire cover, reducing the risk of fire leakage between the diverter flow channel and the outer ring air channel, thus avoiding affecting combustion efficiency. Furthermore, both the first and second connectors are located at the junction of the diverter flow channel and the outer ring air channel, without affecting the internal cross-sectional area of ​​the outer ring air channel, ensuring that the diverted mixed gas is fully mixed within the outer ring air channel.

[0022] The gas stove device provided by the present invention includes the aforementioned burner, which utilizes the centrally located diverter cover as an assembly reference. This avoids the problem of requiring a longer mounting post to directly connect the outer ring fire cover and the fire cover base, thereby reducing processing requirements and thus lowering the burner's processing cost and assembly difficulty. Furthermore, the risk of fire leakage from the diverter flow channel and the outer ring air channel is reduced, thereby avoiding a negative impact on combustion efficiency. Furthermore, the first and second connecting seats do not affect the internal cross-sectional area of ​​the outer ring air channel, thereby facilitating the smooth flow of the mixed gas and improving the combustion efficiency of the gas stove device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a burner provided by an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the disassembled structure of the burner provided by the embodiment of the utility model;

[0025] Figure 3 This is a bottom view of the structure of the diverter cover provided by an embodiment of the utility model;

[0026] Figure 4 This is a structural diagram of the fire cover base provided by an embodiment of the utility model;

[0027] Figure 5 This is a bottom view of the structure of the outer ring fire cover provided by an embodiment of the utility model;

[0028] Figure 6 This is a structural diagram of the diverter cover connected to the fire cover base provided by an embodiment of the utility model;

[0029] Figure 7 It is a structural schematic diagram of the diverter cover connected to the outer ring fire cover provided by an embodiment of the utility model.

[0030] In the picture:

[0031] 1. Fire cover base; 11. First air inlet; 12. First air distribution groove; 13. First outer ring air groove; 14. First mounting seat; 141. First reinforcing rib; 15. Outer peripheral wall; 16. Second air inlet;

[0032] 2. Diverter cover; 21. First connecting seat; 211. First ventilation gap; 212. First conduction gap; 22. Second connecting seat; 221. Second ventilation gap; 222. Second conduction gap; 23. Second air distribution groove; 24. Second reinforcing rib; 25. Inner ring air groove;

[0033] 3. Outer ring fire cover; 30. Outer ring fire hole group; 31. Second outer ring air groove; 32. Second mounting seat; 33. Outer ring fire hole; 34. Avoidance portion;

[0034] 4. Inner ring fire cover; 41. Inner ring fire hole;

[0035] 100, flow distribution channel; 200, outer ring airway; 300, inner ring airway; 400, supplementary airway. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0037] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0040] like Figure 1 and Figure 2As shown, this embodiment first provides a burner, which includes a fire cover base 1, a diverter cover 2, and an outer ring fire cover 3. The fire cover base 1 is provided with a first air inlet 11. The diverter cover 2 is arranged above the fire cover base 1 to enclose a plurality of diverter channels 100. The outer ring fire cover 3 is arranged above the fire cover base 1 and, together with the fire cover base 1 and the diverter cover 2, encloses a ring-shaped outer ring air channel 200. One end of the diverter channel 100 is connected to the first air inlet 11, and the other end is connected to the outer ring air channel 200. The mixture of gas and air enters the plurality of diverter channels 100 through the first air inlet 11, forming a diversion and entering the ring-shaped outer ring air channel 200. The diverter cover 2 is provided with a first connecting seat 21 and a second connecting seat 22. The first connecting seat 21 is used to connect to the fire cover base 1, and the second connecting seat 22 is used to connect to the outer ring fire cover 3. The first connecting seat 21 and the second connecting seat 22 are both arranged at the connection between the diverter channels 100 and the outer ring air channel 200. The diverter cover 2 located in the middle is used as the assembly reference, and the connection and installation of the diverter cover 2 and the fire cover base 1, as well as the connection and installation of the diverter cover 2 and the outer ring fire cover 3 are respectively completed through the first connecting seat 21 and the second connecting seat 22, thereby avoiding the problem of the outer ring fire cover 3 and the fire cover base 1 requiring the installation column to be extended longer, reducing the processing technology requirements, and thus reducing the processing cost and assembly difficulty of the burner. The first connecting seat 21 realizes the connection between the diverter cover 2 and the fire cover base 1, and the second connecting seat 22 realizes the connection between the diverter cover 2 and the outer ring fire cover 3, reducing the risk of fire leakage between the diverter flow channel 100 and the outer ring air channel 200, and avoiding affecting the combustion efficiency. Moreover, the first connecting seat 21 and the second connecting seat 22 are both arranged at the connection point between the diverter flow channel 100 and the outer ring air channel 200, and will not affect the internal cross-sectional area of ​​the outer ring air channel 200, ensuring that the mixed gas after diversion is fully mixed in the outer ring air channel 200, which is beneficial to the smoothness of the flow of the mixed gas and improves the combustion efficiency.

[0041] Multiple flow channels 100 are arranged at intervals along the circumference of the flow divider cover 2 to improve the uniformity of the gas distribution. Figure 3 As shown, the diverter cover 2 is provided with multiple first connection seats 21 and multiple second connection seats 22; thus, multiple points of connection are formed between the diverter cover 2 and the fire cover base 1, and between the diverter cover 2 and the outer ring fire cover 3, improving the sealing performance of the diverter flow channel 100 and the outer ring air channel 200, further reducing the risk of fire leakage. The multiple first connection seats 21 and the multiple second connection seats 22 correspond one-to-one with the multiple diverter flow channels 100, that is, only one first connection seat 21 or one second connection seat 22 is provided at the connection point of the diverter flow channel 100, avoiding affecting the smooth flow of air at the connection point.

[0042] Specifically, in one embodiment, a plurality of first connection seats 21 and a plurality of second connection seats 22 are staggered along the circumference of the diverter cover 2. For example, the diverter cover 2 is placed above the fire cover base 1 to enclose four evenly spaced diverter channels 100. The diverter cover 2 includes two staggered first connection seats 21 and two second connection seats 22. The two first connection seats 21 and the two second connection seats 22 are respectively disposed at the connection points of the four diverter channels 100.

[0043] In one embodiment, if Figure 4 As shown, the fire cover base 1 is provided with a first outer ring air groove 13 and a plurality of first air distribution grooves 12 that are interconnected. The diversion cover 2 is provided with a plurality of second air distribution grooves 23. When the diversion cover 2 is placed on top of the fire cover base 1, the plurality of first air distribution grooves 12 and the plurality of second air distribution grooves 23 correspond one to one and respectively enclose a plurality of diversion flow channels 100. The outer ring fire cover 3 is provided with a second outer ring air groove 31. When the outer ring fire cover 3 is placed on top of the fire cover base 1, the first outer ring air grooves 13 and the second outer ring air grooves 31 enclose an outer ring air channel 200.

[0044] In order to increase the reliability of the connection, a first mounting seat 14 is provided at the bottom of the first gas distribution groove 12. The first mounting seat 14 and the first connecting seat 21 are abutted against each other at their end faces, and a first fastener is used to detachably connect the first mounting seat 14 and the first connecting seat 21. A second mounting seat 32 is provided at the bottom of the second outer ring gas groove 31. The second mounting seat 32 and the second connecting seat 22 are abutted against each other at their end faces, and a second fastener is used to detachably connect the second mounting seat 32 and the second connecting seat 22. Specifically, the first mounting seat 14 is provided with a through hole, and the first connecting seat 21 is provided with a threaded hole. The first fastener is used to pass through the through hole from bottom to top and threadedly connect to the first connecting seat 21. The second connecting seat 22 is provided with a through through hole, and the second mounting seat 32 is provided with a threaded hole. The second fastener is used to pass through the through hole from bottom to top and threadedly connect to the second mounting seat 32. In actual production, the second fastener can be used to complete the installation of the diverter cover 2 and the outer ring fire cover 3 from bottom to top, and then the first fastener can be used to complete the installation of the fire cover base 1 and the diverter cover 2 from bottom to top, which is more convenient to assemble.

[0045] In order to improve the smoothness of the mixed gas flow, a first ventilation gap 211 is provided between the upper end surface of the first connecting seat 21 and the bottom of the second outer ring gas groove 31. Figure 7 As shown; for the branch flow channel 100 with the first connecting seat 21, the mixed gas flowing out of the branch flow channel 100 can enter the outer ring air channel 200 through the first ventilation gap 211.

[0046] For the split flow channel 100 provided with the second connection seat 22, a second ventilation gap 221 is provided between the lower end surface of the second connection seat 22 and the bottom of the first outer ring air groove 13 (refer to Figure 6), which also facilitates the mixed gas flowing out of the split air channel 100 to enter the outer ring air channel 200 through the first ventilation gap 211.

[0047] The fire cover base 1 has an outer peripheral wall 15 arranged on the outer periphery of the first outer ring air groove 13, a first conductive gap 212 is provided between the outer side wall of the first connecting seat 21 and the outer peripheral wall 15, and a second conductive gap 222 is provided between the outer side wall of the second connecting seat 22 and the outer peripheral wall 15. In this way, the continuity of the outer ring air channel 200 in the entire circumferential direction can be ensured, and the mixed gas circulates in the outer ring air channel 200 through the first conductive gap 212 and the second conductive gap 222, and the mixing is more uniform, making the outer ring flame more stable.

[0048] In one embodiment, the first mounting seat 14 has a first reinforcing rib 141, which extends radially along the fire cover base 1 to connect to the outer peripheral wall 15, thereby increasing the structural strength of the first mounting seat 14 and preventing the first mounting seat 14 from being broken due to the tightening force of the first fastener.

[0049] Similarly, second reinforcing ribs 24 are provided on each of the first and second connecting seats 21, 22, and extend into the second air distribution groove 23. The second reinforcing ribs 24 increase the structural strength of the first and second connecting seats 21, 22, preventing the first and second connecting seats 21, 22 from being cracked by the tightening force. Furthermore, since the second reinforcing ribs 24 extend into the second air distribution groove 23, they do not affect the cross-sectional area of ​​the outer ring air passage 200.

[0050] In one embodiment, the outer ring fire cover 3 is provided with a plurality of outer ring fire holes 33, and the plurality of outer ring fire holes 33 form a plurality of outer ring fire hole groups 30. Along the circumference of the outer ring fire cover 3, the plurality of outer ring fire hole groups 30 are spaced apart, such as Figure 5 As shown, there is a relief portion 34 between adjacent outer ring fire hole groups 30, and the relief portion 34 faces the flow divider 100. The relief portion 34 does not have a fire hole, forming a fire escape. The temperature of the outer ring flame in the fire escape is relatively low, forming a relief, which can prevent the legs of the pot support set above the burner from overheating and causing defects such as delamination and deformation.

[0051] In order to form an inner ring flame, the burner also includes an inner ring fire cover 4. The fire cover base 1 is provided with a second air inlet 16, and the diverter cover 2 is provided with an inner ring gas groove 25. The inner ring fire cover 4 is placed on top of the diverter cover 2 to form an inner ring air channel 300. The inner ring fire hole 41 on the inner ring fire cover 4 is connected to the inner ring air channel 300 to form an inner ring flame. The inlet of the inner ring air channel 300 is connected to the second air inlet 16. The fuel gas enters the annular inner ring air channel 300 through the second air inlet 16, providing fuel gas to the inner ring fire hole 41. When the fire cover base 1 and the diverter cover 2 are covered, a supplementary air channel 400 is formed that runs through the axial direction. The supplementary air channel 400 is arranged around the circumference of the inner ring fire cover 4. The supplementary air channel 400 is used to guide supplementary air. The supplementary air can participate in the combustion of the outer ring fire hole 33 and the inner ring fire hole 41 to avoid incomplete combustion.

[0052] The embodiment of the present invention further provides a gas stove device, which includes a burner as described above. The burner uses the diverter cover 2 located in the middle as the assembly reference, and completes the connection and installation of the diverter cover 2 and the fire cover base 1, as well as the connection and installation of the diverter cover 2 and the outer ring fire cover 3 through the first connecting seat 21 and the second connecting seat 22, respectively. This avoids the problem of extending the installation column longer when directly connecting the outer ring fire cover 3 and the fire cover base 1, reduces the processing requirements, and thus reduces the processing cost and assembly difficulty of the burner. The first connecting seat 21 realizes the connection between the diverter cover 2 and the fire cover base 1, and the second connecting seat 22 realizes the connection between the diverter cover 2 and the outer ring fire cover 3, reducing the risk of fire leakage in the diverter flow channel 100 and the outer ring air channel 200, thereby avoiding affecting the combustion efficiency. Moreover, the first connecting seat 21 and the second connecting seat 22 are both arranged at the connection point between the diverter flow channel 100 and the outer ring air channel 200, and will not affect the internal cross-sectional area of ​​the outer ring air channel 200, ensuring that the mixed gas after diversion is fully mixed in the outer ring air channel 200, which is beneficial to the smooth flow of the mixed gas and improves the combustion efficiency of the gas stove device.

[0053] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A burner, characterized in that The fire cover comprises a fire cover base (1), a diversion cover (2) and an outer ring fire cover (3), wherein the fire cover base (1) is provided with a first air inlet (11), the diversion cover (2) is arranged above the fire cover base (1) to enclose a plurality of diversion flow passages (100), the outer ring fire cover (3) is arranged above the fire cover base (1) and encloses together with the fire cover base (1) and the diversion cover (2) to form an annular outer ring air passage (200), one end of the diversion flow passage (100) is connected to the outer ring air passage (200). The first air inlet (11) is connected to the outer ring air duct (200) at the other end, and the diverter cover (2) is provided with a first connecting seat (21) and a second connecting seat (22), the first connecting seat (21) is used to connect to the fire cover base (1), and the second connecting seat (22) is used to connect to the outer ring fire cover (3), and the first connecting seat (21) and the second connecting seat (22) are both provided at the connection point between the diverter flow duct (100) and the outer ring air duct (200).

2. The burner according to claim 1, characterized in that The plurality of flow diversion channels (100) are arranged at intervals along the circumference of the flow diversion cover (2); the flow diversion cover (2) is provided with a plurality of first connecting seats (21) and a plurality of second connecting seats (22); the plurality of first connecting seats (21) and the plurality of second connecting seats (22) correspond one-to-one to the plurality of flow diversion channels (100).

3. The burner according to claim 2, characterized in that Along the circumference of the diverter cover (2), a plurality of the first connecting seats (21) and a plurality of the second connecting seats (22) are arranged alternately.

4. The burner according to claim 1, characterized in that The fire cover base (1) is provided with a first outer ring air groove (13) and a plurality of first air dividing grooves (12) that are interconnected, the diversion cover (2) is provided with a plurality of second air dividing grooves (23), the outer ring fire cover (3) is provided with a second outer ring air groove (31), the plurality of first air dividing grooves (12) and the plurality of second air dividing grooves (23) correspond one to one and respectively enclose a plurality of the diversion flow channels (100), and the first outer ring air groove (13) and the second outer ring air groove (31) enclose together to form the outer ring air channel (200).

5. The burner according to claim 4, characterized in that A first mounting seat (14) is provided at the bottom of the first air distribution groove (12), the first mounting seat (14) and the first connecting seat (21) are in abutment with each other at their end faces, and a first fastener is detachably connected to the first mounting seat (14) and the first connecting seat (21); a second mounting seat (32) is provided at the bottom of the second outer ring air groove (31), the second mounting seat (32) and the second connecting seat (22) are in abutment with each other at their end faces, and a second fastener is detachably connected to the second mounting seat (32) and the second connecting seat (22).

6. The burner according to claim 5, characterized in that A first ventilation gap (211) is provided between the upper end surface of the first connecting seat (21) and the bottom of the second outer ring air groove (31); and / or, A second ventilation gap (221) is provided between the lower end surface of the second connecting seat (22) and the bottom of the first outer ring air groove (13).

7. The burner according to claim 5, characterized in that The fire cover base (1) has an outer peripheral wall (15) arranged around the outer periphery of the first outer ring air groove (13); a first conductive gap (212) is provided between the outer side wall of the first connecting seat (21) and the outer peripheral wall (15); and a second conductive gap (222) is provided between the outer side wall of the second connecting seat (22) and the outer peripheral wall (15).

8. The burner according to claim 7, characterized in that The first mounting seat (14) has a first reinforcing rib (141), and the first reinforcing rib (141) extends along the radial direction of the fire cover base (1) to connect with the outer peripheral wall (15); and / or, The first connecting seat (21) and the second connecting seat (22) are both provided with a second reinforcing rib (24), and the second reinforcing rib (24) extends toward the inside of the second gas distribution groove (23).

9. The burner according to claim 1, characterized in that The outer ring fire cover (3) is provided with a plurality of outer ring fire holes (33), and the plurality of outer ring fire holes (33) form a plurality of outer ring fire hole groups (30). Along the circumference of the outer ring fire cover (3), the plurality of outer ring fire hole groups (30) are arranged at intervals, and there is an avoidance portion (34) between adjacent outer ring fire hole groups (30), and the avoidance portion (34) faces the split flow channel (100).

10. A gas stove device, characterized in that: Comprising the burner according to any one of claims 1 to 9.

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