Inner ring fire cover and combustor

Abstract

The invention provides an inner ring fire cover and a combustor, and relates to the technical field of cooking utensils. The inner ring fire cover comprises a fire cover body, a plurality of fire holes are formed in the fire cover body, the inner ring fire cover further comprises an adjusting part, a containing groove matched with the adjusting part in shape is formed in the fire cover body, the adjusting part can be inserted into the containing groove and penetrate through the containing groove so that the fire holes can be divided into first hole sections and second hole sections, the first hole sections are arranged on the radial inner sides of the adjusting parts, and the second hole sections are arranged on the radial outer sides of the adjusting parts. The second hole section is arranged on the radial outer side of the adjusting piece, and the adjusting piece is not parallel to the extending direction of the fire hole. A plurality of adjusting holes penetrating through the adjusting part are formed in the adjusting part, the two ends of the adjusting holes communicate with the first hole section and the second hole section correspondingly, adjusting pieces are arranged on the adjusting holes, and the adjusting pieces are used for being driven by fuel gas flowing through the adjusting holes to adjust the opening degree of the adjusting holes, so that the inner ring fire cover can automatically adjust the sizes of fire holes through fuel gas power; manual adjustment by operators is not needed, so that the adjustment of the fire holes of the inner ring fire cover is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of stoves, and in particular to an inner ring fire cover and a burner. Background Art

[0002] Traditional inner ring fire covers usually cannot adjust the size of the fire hole, and dirt is easily accumulated in the fire hole, and the fire hole is not easy to clean. In the prior art, in order to control the size of the fire hole or clean the fire hole, the inner ring fire cover is usually designed to be split. However, although the split fire cover is easy to adjust the fire control size or convenient to clean, it has poor flame stability and is prone to flame separation in cold or high-pressure conditions. Moreover, in the prior art, adjusting the fire hole usually requires manual adjustment by the operator, which is troublesome to operate and difficult to automatically adjust the size of the fire hole through the power of gas. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an inner ring fire cover and a burner in order to overcome the defect that the size of the fire hole of the inner ring fire cover in the prior art needs to be adjusted manually and is difficult to be adjusted automatically by gas power.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The present invention provides an inner ring fire cover, the inner ring fire cover comprises a fire cover body, the fire cover body is provided with a plurality of fire holes, the inner ring fire cover also comprises an adjusting member, the fire cover body is provided with a placement groove matching the shape of the adjusting member, the adjusting member can be inserted into the placement groove and penetrate the placement groove to separate the fire holes into a first hole segment and a second hole segment, the first hole segment is provided on the radial inner side of the adjusting member, the second hole segment is provided on the radial outer side of the adjusting member, and the extending direction of the adjusting member and the fire holes is not parallel;

[0006] The adjusting member is provided with a plurality of adjusting holes penetrating the adjusting member, and the two ends of the adjusting hole are respectively connected to the first hole section and the second hole section. The adjusting hole is provided with an adjusting plate, and the adjusting plate is used to be driven by the gas flowing through the adjusting hole to adjust the opening size of the adjusting hole.

[0007] In this solution, the inner ring fire cover includes a fire cover body and an adjusting member, the fire cover body is provided with a plurality of fire holes, the fire cover body is provided with a placement groove matching the shape of the adjusting member, the adjusting member can be inserted into the placement groove and penetrate the placement groove to separate the fire hole into a first hole segment and a second hole segment. The adjusting member is provided with a plurality of adjustment holes penetrating the adjusting member, the two ends of the adjustment hole are respectively connected to the first hole segment and the second hole segment, the adjustment hole is provided with an adjustment plate, the adjustment plate can be driven by the gas flowing through the adjustment hole to adjust the opening size of the adjustment hole, so that the inner ring fire cover can automatically adjust the size of the fire hole by gas power without manual adjustment by the operator, making the adjustment of the fire hole of the inner ring fire cover more convenient.

[0008] Preferably, the regulating plate is obliquely extended downward in the direction from the radial inner side to the radial outer side of the inner ring fire cover, so that the regulating plate can be in a closed state under the action of its own gravity when not affected by the power of the gas.

[0009] In the present scheme, the adjusting plate is arranged to extend downwardly and obliquely from the radial inner side to the radial outer side of the inner ring fire cover, so that when the adjusting part is not affected by the gas power, the adjusting plate can be in a closed state due to the action of its own gravity. When the inner ring fire cover is burning, the adjusting plate can be opened by the drive of the gas power, and the opening size of the adjusting plate can be changed according to the size of the gas power. When the inner ring fire cover stops working, the adjusting plate can automatically close under the action of its own gravity, thereby achieving the effect of automatically adjusting the opening and closing state of the adjusting hole by the gas power.

[0010] Preferably, the regulating plate comprises a connecting portion and a valve plate, the connecting portion is connected to the regulating hole, one end of at least one valve plate is movably connected to the connecting portion, and the valve plate is used to be able to open at least in the flow direction of the gas.

[0011] In this solution, the specific structure of the adjusting plate includes a connecting part and a valve plate. The connecting part is connected to the adjusting hole. One end of at least one valve plate is movably connected to the connecting part. The valve plate can at least be opened in the flow direction of the gas. When the gas flows through the adjusting hole, the gas power drives the valve plate to move around the connecting part, changing the rotation angle of the valve plate, thereby adjusting the opening size of the adjusting hole.

[0012] Preferably, the connecting portion is arranged in the middle of the adjusting hole, and the two valve sheets are respectively arranged on both sides of the connecting portion.

[0013] In this solution, there can be two valve plates, the connection part is arranged in the middle of the regulating hole, and the two valve plates are arranged on both sides of the connection part. When the gas flows through the regulating hole, the valve plates can be opened on both sides of the connection part. By setting two valve plates, each valve plate is smaller than one valve plate, which is more convenient for the valve plate to open, and the valve plate adjustment is more sensitive. When one of the valve plates fails, the other valve plate can also ensure the normal operation of the regulating hole, thereby improving the fault tolerance of the regulating plate. By setting the connection part in the middle, the gas power received by the valve plates on both sides can be more uniform, further improving the adjustment effect of the valve plate.

[0014] Preferably, the adjustment member can rotate along the circumferential direction of the inner ring fire cover to change the overlapping area between the adjustment hole and the fire hole in the radial direction of the inner ring fire cover.

[0015] In this solution, on the basis of the automatic adjustment of the adjustment piece according to the gas power, the user can adjust the size of the adjustment hole by rotating the adjustment piece. When the user needs to adjust the fire hole, the adjustment piece can be rotated along the circumference of the inner ring fire cover, thereby changing the overlapping area of ​​the adjustment hole and the fire hole in the radial direction of the inner ring fire cover, that is, adjusting the area of ​​the adjustment hole located in the fire hole, thereby adjusting the size of the fire hole. Moreover, when the adjustment piece is rotated, the dirt accumulated in the fire hole can also be disassembled to make the dirt particles smaller. When the adjustment piece is disassembled, it is also easier for the dirt to flow out and easier to clean the fire hole.

[0016] Preferably, at least part of the adjustment holes correspond to the positions of the fire holes in the circumferential direction of the adjustment member.

[0017] In this solution, by making at least part of the adjustment holes correspond to the positions of the fire holes on the circumferential direction of the adjustment member, the sizes of the multiple fire holes on the circumferential direction of the inner ring fire cover can be adjusted. When the adjustment member rotates, the relative positions of the multiple fire holes and the adjustment holes can be adjusted, making the adjustment of the size of the fire holes more convenient.

[0018] Preferably, when the adjusting member is rotated until the adjusting hole and the fire hole are misaligned, the inner wall of the placement groove can limit the opening size of the adjusting piece.

[0019] In this solution, when the adjusting member is rotated to the point where the adjusting hole is misaligned with the fire hole, part of the adjusting hole is located in the placement groove, and the inner wall of the placement groove limits the opening size of the adjusting piece, that is, limits the size of the adjusting hole, thereby allowing the user to adjust the size of the fire hole by rotating the adjusting member.

[0020] Preferably, in the direction from the radial inner side to the radial outer side of the inner ring fire cover, the first hole segment extends obliquely downward, and the second hole segment extends obliquely upward;

[0021] And / or, the adjusting member and the placement groove extend in a vertical direction.

[0022] In the present scheme, in the direction from the radial inner side to the radial outer side of the inner ring fire cover, the first hole segment is extended obliquely downward and the second hole segment is extended obliquely upward, so that the fire hole as a whole is V-shaped. When dirt enters the fire hole, it will accumulate at the bottom of the V-shaped fire hole, and the adjusting part is just at the bottom of the V-shaped fire hole. When the adjusting part rotates, it can better clean the dirt accumulated at the bottom of the V-shaped fire hole and reduce the blockage of the fire hole.

[0023] By arranging the adjusting part and the placement groove to extend in the vertical direction, it is easier for the user to place the adjusting part in the placement groove. At the same time, when the adjusting part is disassembled, the dirt in the fire hole can flow out in the vertical direction. The adjusting part and the placement groove extending in the vertical direction are also easier to produce.

[0024] Preferably, the opening of the placement groove is arranged at the lower end of the fire cover body, and the adjustment member is inserted into the placement groove from the lower end of the fire cover body;

[0025] And / or, the adjusting member is further provided with a positioning member, and the positioning member extends from the lower end of the adjusting member to the radial inner side of the adjusting member.

[0026] In the present scheme, by setting the opening of the placement groove at the lower end of the fire cover body, the adjusting part is inserted into the placement groove from the lower end of the fire cover body, thereby hiding the opening of the placement groove and preventing the opening of the placement groove from being exposed to the outside of the inner ring fire cover. It is also convenient for dirt in the fire hole to flow out from the bottom of the inner ring fire cover during cleaning, and it is also convenient for the installation and disassembly of the adjusting part.

[0027] By providing a positioning piece on the adjusting piece, the user can rotate the positioning piece to drive the adjusting piece to rotate, which is more convenient for the user to operate. At the same time, it is easier to determine the rotation angle of the adjusting piece by observing the position of the positioning piece. By extending the positioning piece from the lower end of the adjusting piece to the radial inner side of the adjusting piece, it is easier for the user to rotate the positioning piece along the circumferential direction of the inner ring fire cover.

[0028] The present invention also provides a burner, which includes the inner ring fire cover mentioned above.

[0029] The positive and progressive effects of the present invention are:

[0030] The inner ring fire cover includes a fire cover body and an adjusting member. The fire cover body is provided with a plurality of fire holes. The fire cover body is provided with a placement groove matching the shape of the adjusting member. The adjusting member can be inserted into the placement groove and penetrate the placement groove to separate the fire hole into a first hole segment and a second hole segment. The adjusting member is provided with a plurality of adjustment holes penetrating the adjusting member. The two ends of the adjustment hole are respectively connected to the first hole segment and the second hole segment. The adjustment hole is provided with an adjustment plate. The adjustment plate can be driven by the gas flowing through the adjustment hole to adjust the opening size of the adjustment hole, so that the inner ring fire cover can automatically adjust the size of the fire hole by gas power without manual adjustment by the operator, making the adjustment of the fire hole of the inner ring fire cover more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the inner ring fire cover according to an embodiment of the present invention.

[0032] Figure 2 It is a schematic diagram of the cross-sectional structure of an inner ring fire cover according to an embodiment of the present invention.

[0033] Figure 3 The figure is a bottom view of an inner ring fire cover according to an embodiment of the present invention.

[0034] Figure 4It is a schematic diagram of the three-dimensional structure of the regulating member in a valve plate closed state according to an embodiment of the present invention.

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the regulating member in the valve plate open state according to an embodiment of the present invention.

[0036] Figure 6 FIG. 4 is a bottom view of an adjusting member according to an embodiment of the present invention.

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the adjustment hole and the fire hole in a misaligned state according to an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] Inner ring fire cover 100

[0040] Fire cover body 200

[0041] Fire hole 210

[0042] First hole section 211

[0043] The second hole section 212

[0044] Placement slot 220

[0045] Adjustment 300

[0046] Adjustment hole 310

[0047] Adjustment sheet 320

[0048] Connection part 321

[0049] Valve plate 322

[0050] Positioning piece 400 DETAILED DESCRIPTION

[0051] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the following examples.

[0052] This embodiment provides a burner, which includes an inner ring fire cover 100 .

[0053] like Figure 1-Figure 3As shown, the inner ring fire cover 100 includes a fire cover body 200, and a plurality of fire holes 210 are provided on the fire cover body 200. The inner ring fire cover 100 also includes an adjusting member 300, and a placement groove 220 matching the shape of the adjusting member 300 is provided on the fire cover body 200. The adjusting member 300 can be inserted into the placement groove 220 and pass through the placement groove 220 to separate the fire holes 210 into a first hole segment 211 and a second hole segment 212. The first hole segment 211 is provided on the radial inner side of the adjusting member 300, and the second hole segment 212 is provided on the radial outer side of the adjusting member 300. The extension direction of the adjusting member 300 is not parallel to that of the fire holes 210.

[0054] like Figure 4-Figure 7 As shown, the adjusting member 300 is provided with a plurality of adjusting holes 310 penetrating the adjusting member 300, and the two ends of the adjusting hole 310 are respectively connected to the first hole section 211 and the second hole section 212, and the adjusting hole 310 is provided with an adjusting plate 320, which is used to be driven by the gas flowing through the adjusting hole 310 to adjust the opening size of the adjusting hole 310, so that the inner ring fire cover 100 can automatically adjust the size of the fire hole 210 by gas power without manual adjustment by the operator, making the adjustment of the fire hole 210 of the inner ring fire cover 100 more convenient.

[0055] In the direction from the radial inner side to the radial outer side of the inner ring fire cover 100, the adjusting piece 320 is inclined and extends downward, so that when the adjusting piece 320 is not affected by the gas power, it can be in a closed state under the action of its own gravity, so that when the adjusting member 300 is not affected by the gas power, the adjusting piece 320 can be in a closed state under the action of its own gravity. When the inner ring fire cover 100 is burning, the adjusting piece 320 can be opened by the drive of the gas power, and the opening size of the adjusting piece 320 can be changed according to the size of the gas power. When the inner ring fire cover 100 stops working, the adjusting piece 320 can automatically close under the action of its own gravity, thereby achieving the effect of automatically adjusting the opening and closing state of the adjusting hole 310 through the gas power.

[0056] The regulating plate 320 includes a connecting portion 321 and a valve plate 322. The connecting portion 321 is connected to the regulating hole 310. One end of at least one valve plate 322 is movably connected to the connecting portion 321. The valve plate 322 is used to be opened at least in the flow direction of the gas. When the gas flows through the regulating hole 310, the gas power drives the valve plate 322 to move around the connecting portion 321, changing the rotation angle of the valve plate 322, thereby adjusting the opening size of the regulating hole 310.

[0057] There can be two valve discs 322, the connection part 321 is arranged in the middle of the regulating hole 310, and the two valve discs 322 are arranged on both sides of the connection part 321 respectively. When the gas flows through the regulating hole 310, the valve disc 322 can be opened on both sides of the connection part 321. By setting two valve discs 322, compared with setting one valve disc 322, each valve disc 322 is smaller, which is more convenient for the valve disc 322 to open, and the valve disc 322 is more sensitive to adjust. When one of the valve discs 322 fails, the other valve disc 322 can also ensure the normal operation of the regulating hole 310, thereby improving the fault tolerance of the regulating disc 320. By setting the connection part 321 in the middle, the gas power received by the valve discs 322 on both sides can be more uniform, further improving the adjustment effect of the valve disc 322.

[0058] In this embodiment, there are two valve plates 322. In other embodiments, there may be one valve plate 322, and those skilled in the art may also select other appropriate numbers of valve plates 322.

[0059] In this embodiment, the valve plate 322 is semicircular. In other embodiments, other shapes of the valve plate 322 considered appropriate by those skilled in the art may also be selected.

[0060] In this embodiment, the connection part 321 is arranged in the middle of the adjustment hole 310, and the two valve plates 322 are respectively arranged on both sides of the connection part 321. In other embodiments, the connection part 321 can also be arranged at one end of the adjustment hole 310, and the valve plate 322 can be arranged on one side of the connection part 321. Those skilled in the art can also select other suitable arrangement positions of the connection part 321 and the valve plate 322.

[0061] In this embodiment, the connecting portion 321 extends in the vertical direction. In other embodiments, the extending portion may also extend in the horizontal direction or extend obliquely, and those skilled in the art may select the extending direction of the connecting portion 321 according to actual needs.

[0062] The adjusting member 300 can rotate along the circumference of the inner ring fire cover 100 to change the overlap area of ​​the adjusting hole 310 and the fire hole 210 in the radial direction of the inner ring fire cover 100. On the basis that the adjusting piece 320 is automatically adjusted according to the gas power, the user can adjust the size of the adjusting hole 310 by rotating the adjusting member 300. When the user needs to adjust the fire hole 210, the adjusting member 300 can be rotated along the circumference of the inner ring fire cover 100 to change the overlap area of ​​the adjusting hole 310 and the fire hole 210 in the radial direction of the inner ring fire cover 100, that is, to adjust the area of ​​the adjusting hole 310 located in the fire hole 210, so as to adjust the size of the fire hole 210. Moreover, when the adjusting member 300 rotates, the dirt accumulated in the fire hole 210 can also be disassembled to make the dirt particles smaller. When the adjusting member 300 is disassembled, it is also easier for the dirt to flow out and easier for the fire hole 210 to be cleaned.

[0063] At least some of the adjustment holes 310 correspond to the positions of the fire holes 210 in the circumferential direction of the adjustment member 300, so that the sizes of the multiple fire holes 210 in the circumferential direction of the inner ring fire cover 100 can be adjusted. When the adjustment member 300 rotates, the relative positions of the multiple fire holes 210 and the adjustment holes 310 can be adjusted, making it more convenient to adjust the size of the fire holes 210.

[0064] In this embodiment, only some of the adjustment holes 310 are provided with valve plates 322. In other embodiments, valve plates 322 may also be provided on all the adjustment holes 310.

[0065] In this embodiment, the size of the adjustment hole 310 is smaller than the size of the fire hole 210, so that the adjustment piece 320 can be fully opened. In other embodiments, the size of the adjustment hole 310 can also be set to be equal to the size of the fire hole 210. Those skilled in the art can select a suitable size of the adjustment hole 310 according to actual needs.

[0066] like Figure 7 As shown, the adjusting member 300 has a certain thickness in the radial direction of the inner ring fire cover 100. When the adjusting member 300 is rotated to the misalignment between the adjusting hole 310 and the fire hole 210, the inner wall of the placement groove 220 can limit the opening size of the adjusting piece 320. When the adjusting member 300 is rotated to the misalignment between the adjusting hole 310 and the fire hole 210, the adjusting hole 310 is partially located in the placement groove 220, and the inner wall of the placement groove 220 limits the opening size of the adjusting piece 320, that is, limits the size of the adjusting hole 310, so that the user can adjust the size of the fire hole 210 by rotating the adjusting member 300.

[0067] In this embodiment, the adjusting member 300 surrounds the inner ring fire cover 100. In other embodiments, the adjusting member 300 may be arranged at multiple intervals along the circumference of the inner ring fire cover 100, and those skilled in the art may select a suitable specific structure of the adjusting member 300 according to actual needs.

[0068] In the direction from the radial inner side to the radial outer side of the inner ring fire cover 100, the first hole section 211 extends obliquely downward, and the second hole section 212 extends obliquely upward, so that the fire hole 210 is V-shaped as a whole. When dirt enters the fire hole 210, it will accumulate at the bottom of the V-shaped fire hole 210, and the adjustment member 300 is just at the bottom of the V-shaped fire hole 210. When the adjustment member 300 rotates, it can better clean the dirt accumulated at the bottom of the V-shaped fire hole 210 and reduce the blockage of the fire hole 210.

[0069] In this embodiment, the fire hole 210 extends obliquely upward to both sides from the position of the adjustment member 300. In other embodiments, the first hole segment 211 and the second hole segment 212 may also be extended in other directions, and those skilled in the art may select other suitable extension directions of the first hole segment 211 and the second hole segment 212.

[0070] The adjusting member 300 and the placement groove 220 extend in the vertical direction, so that it is easier for the user to place the adjusting member 300 in the placement groove 220. At the same time, when the adjusting member 300 is disassembled, it is easier for dirt in the fire hole 210 to flow out in the vertical direction. The adjusting member 300 and the placement groove 220 extending in the vertical direction are also easier to produce.

[0071] In this embodiment, the adjusting member 300 and the placement slot 220 extend in the vertical direction. In other embodiments, the adjusting member 300 and the placement slot 220 may also be arranged to be inclined, and those skilled in the art may select appropriate extending directions of the adjusting member 300 and the placement slot 220 according to actual needs.

[0072] The opening of the placement groove 220 is arranged at the lower end of the fire cover body 200, and the adjusting member 300 is inserted into the placement groove 220 from the lower end of the fire cover body 200, thereby being able to hide the opening of the placement groove 220 and avoid the opening of the placement groove 220 being exposed to the outside of the inner ring fire cover 100, and also facilitating the dirt in the fire hole 210 to flow out from the bottom of the inner ring fire cover 100 during cleaning, and also facilitating the installation and disassembly of the adjusting member 300.

[0073] The adjusting member 300 is also provided with a positioning member 400, which extends from the lower end of the adjusting member 300 to the radial inner side of the adjusting member 300. The user can rotate the positioning member 400 to drive the adjusting member 300 to rotate, which is more convenient for the user to operate. At the same time, it is more convenient to determine the rotation angle of the adjusting member 300 by observing the position of the positioning member 400. By extending the positioning member 400 from the lower end of the adjusting member 300 to the radial inner side of the adjusting member 300, it is more convenient for the user to rotate the positioning member 400 along the circumferential direction of the inner ring fire cover 100.

[0074] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship of the device or element in normal use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation at any time, and therefore cannot be understood as a limitation of the present invention in this regard.

[0075] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An inner ring fire cover, comprising a fire cover body, wherein the fire cover body is provided with a plurality of fire holes, characterized in that: The inner ring fire cover also includes an adjusting member, a placement groove matching the shape of the adjusting member is provided on the fire cover body, the adjusting member can be inserted into the placement groove and penetrate the placement groove to separate the fire hole into a first hole segment and a second hole segment, the first hole segment is provided on the radial inner side of the adjusting member, the second hole segment is provided on the radial outer side of the adjusting member, and the extending direction of the adjusting member is not parallel to the fire hole; The adjusting member is provided with a plurality of adjusting holes penetrating the adjusting member, and the two ends of the adjusting hole are respectively connected to the first hole section and the second hole section. The adjusting hole is provided with an adjusting plate, and the adjusting plate is used to be driven by the gas flowing through the adjusting hole to adjust the opening size of the adjusting hole.

2. The inner ring fire cover according to claim 1, characterized in that: In the direction from the radial inner side to the radial outer side of the inner ring fire cover, the regulating piece is inclined and extends downward, so that the regulating piece can be in a closed state under the action of its own weight when not affected by the power of the gas.

3. The inner ring fire cover according to claim 1, characterized in that: The regulating plate includes a connecting portion and a valve plate, wherein the connecting portion is connected to the regulating hole, one end of at least one valve plate is movably connected to the connecting portion, and the valve plate is used to be opened at least in the flow direction of the gas.

4. The inner ring fire cover according to claim 3, characterized in that: The connecting portion is arranged at the middle of the adjusting hole, and the two valve sheets are arranged at two sides of the connecting portion respectively.

5. The inner ring fire cover according to any one of claims 1 to 4, characterized in that: The adjusting member can rotate along the circumferential direction of the inner ring fire cover to change the overlapping area between the adjusting hole and the fire hole in the radial direction of the inner ring fire cover.

6. The inner ring fire cover according to claim 5, characterized in that: At least some of the adjustment holes correspond to the positions of the fire holes in the circumferential direction of the adjustment member.

7. The inner ring fire cover according to claim 6, characterized in that: When the adjusting member is rotated until the adjusting hole and the fire hole are misaligned, the inner wall of the placement groove can limit the opening size of the adjusting piece.

8. The inner ring fire cover according to claim 1, characterized in that: In the direction from the radial inner side to the radial outer side of the inner ring fire cover, the first hole segment extends obliquely downward, and the second hole segment extends obliquely upward; And / or, the adjusting member and the placement groove extend in a vertical direction.

9. The inner ring fire cover according to claim 1, characterized in that: The opening of the placement groove is arranged at the lower end of the fire cover body, and the adjustment member is inserted into the placement groove from the lower end of the fire cover body; And / or, the adjusting member is further provided with a positioning member, and the positioning member extends from the lower end of the adjusting member to the radial inner side of the adjusting member.

10. A burner, characterized in that: The burner comprises an inner ring fire cover as described in any one of claims 1-9.

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