Inner ring fire cover, combustor and stove
By setting a groove on the top plate of the inner ring burner to connect with the overflow channel, the directional flow of soup is achieved, solving the problem of blockage of the inner ring burner and ensuring the normal operation of the burner.
Patent Information
- Application Number
- CN202423028201.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The inner ring burner cap of existing gas stoves is prone to clogging the flame holes due to soup spillage during use, making them unusable.
Design an inner ring fire cover, including a top plate and a side plate. The top plate is provided with a groove that communicates with an overflow channel. The overflow channel extends downward along the side plate to direct the flow of soup and prevent it from flowing to other places.
By directing the flow, blockage of the inner ring burner hole is avoided, ensuring the burner works normally and solving the problem of soup overflow.
Smart Images
Figure CN223595923U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to kitchen utensil technical field especially, relate to a kind of inner ring fire cover, combustor and stove. BACKGROUND
[0002] The combustor of existing gas stove generally includes gas distribution seat and fire cover structure, and the fire cover structure generally includes inner ring fire cover and outer ring fire cover. The fire cover is arranged above the gas distribution seat, and a plurality of fire outlet holes for gas ejection are formed on the surface of the fire cover to form a flame after ignition.
[0003] During the use of the combustor, the soup on the pot may overflow onto the inner ring fire cover. The overflowing soup flows randomly on the inner ring fire cover, which may block the holes on the inner ring fire cover and affect the normal use of the inner ring fire cover. SUMMARY
[0004] The utility model aims at providing an inner ring fire cover, a combustor and a stove, which can solve the problem of blockage of the inner ring fire cover due to the random flow of soup on the inner ring fire cover and normal use of the inner ring fire cover.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions:
[0006] An inner ring fire cover includes a fire cover body, the fire cover body includes a top plate and a side plate connected to the edge of the top plate and extending downward, the side plate is provided with a fire outlet hole, the top plate is provided with a groove, the fire cover body is provided with an overflow groove, the overflow groove is communicated with the groove and extends downward along the side plate.
[0007] As an optional solution of the above-mentioned inner ring fire cover, the overflow groove is provided with a plurality of overflow grooves, and the plurality of overflow grooves are arranged at intervals along the circumference of the fire cover body.
[0008] And / or, the width of at least one end of the overflow groove communicated with the groove gradually decreases in the direction away from the groove.
[0009] And / or, at least one end of the overflow groove communicated with the groove is inclined downward.
[0010] And / or, the depth of the overflow groove is 1-5 mm.
[0011] And / or, the side plate is inclined outward along the radial direction of the fire cover body from top to bottom.
[0012] And / or, the side plate is provided with a fire transmission hole on the opposite sides of the overflow groove.
[0013] As an optional solution of the inner ring fire cover, a soup-proof eave is arranged on the side plate, the side plate comprises an upper side plate above the soup-proof eave and a lower side plate below the soup-proof eave, the fire outlet is arranged on the upper side plate, and the bottom end of the overflow groove extends through the soup-proof eave.
[0014] As an optional solution of the inner ring fire cover, a lower side air outlet is arranged on the lower side plate, the lower side air outlet comprises an ignition hole and / or a fire retaining hole;
[0015] And / or, the bottom end of the side plate is provided with a concave notch to form the soup-proof eave above the notch.
[0016] As an optional solution of the inner ring fire cover, the lower side air outlet extends horizontally;
[0017] And / or, the lower side air outlet and the overflow groove are arranged at intervals along the circumference of the fire cover body;
[0018] And / or, the lower side plate is provided with a flame stabilizing hole on at least one side of the lower side air outlet.
[0019] As an optional solution of the inner ring fire cover, the flame stabilizing hole extends obliquely from inside to outside towards the direction close to the lower side air outlet;
[0020] And / or, the minimum distance between the flame stabilizing hole and the adjacent lower side air outlet is 0.2-2.5mm.
[0021] As an optional solution of the inner ring fire cover, the inner ring fire cover further comprises a center pipe, the center pipe is arranged in the fire cover body, the groove is an annular groove and is arranged around the center pipe, and the side plate of the center pipe is provided with an oxygen supplementing and heat dissipating hole above the top plate.
[0022] As an optional solution of the inner ring fire cover, the height difference between the oxygen supplementing and heat dissipating hole and the top plate is 1-5mm.
[0023] A burner comprising a gas distribution seat and the above-mentioned inner ring fire cover, the inner ring fire cover is connected with the gas distribution seat and surrounds an inner ring gas mixing cavity, and the fire outlet communicates with the inner ring gas mixing cavity.
[0024] A stove comprising the above-mentioned burner.
[0025] The beneficial effects of the utility model are as follows:
[0026] The soup in the recess can flow downwards through the overflow groove under the action of gravity and cannot flow to other positions, so that the hole of the inner ring fire cover is prevented from being blocked.
[0027] The burner provided by the utility model can realize directional flow of soup, prevent the inner ring fire cover from being blocked and solve the problem that the inner ring fire cover cannot work normally.
[0028] The stove provided by the utility model can solve the problem that the inner ring fire cover is blocked and cannot be normally used due to arbitrary flow of soup on the inner ring fire cover. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 is a structural schematic view of the burner provided by the utility model;
[0030] Figure 2 is a sectional view of the burner provided by the utility model;
[0031] Figure 3 is a first schematic view of the inner ring fire cover provided by the utility model;
[0032] Figure 4 is a front view of the inner ring fire cover provided by the utility model;
[0033] Figure 5 is a second schematic view of the inner ring fire cover provided by the utility model;
[0034] Figure 6 is a first sectional view of the inner ring fire cover provided by the utility model;
[0035] Figure 7 is a second sectional view of the inner ring fire cover provided by the utility model.
[0036] In the drawings:
[0037] 100, inner ring fire cover; 10, fire cover body; 11, top plate; 111, recess; 12, side plate; 121, upper side plate; 1211, fire outlet hole; 1212, fire passing hole; 122, lower side plate; 1221, ignition hole; 1222, first flame stabilizing hole; 1223, fire retaining hole; 1224, second flame stabilizing hole; 123, soup preventing eave; 20, center pipe; 21, oxygen supplementing and heat radiating hole; 30, overflow groove; 31, first overflow section; 32, second overflow section; 200, outer ring fire cover; 300, gas distribution seat; 400, injection assembly; 500, ignition needle. DETAILED DESCRIPTION
[0038] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely intended to explain the utility model and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.
[0039] In the description of the utility model, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0040] In the utility model, unless explicitly defined and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0041] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0042] The embodiment provides a kind of stove, including cooktop and burner, burner is set on cooktop, for generating flame, to carry out cooking. As shown in Figure 1 And Figure 2 As shown, the burner includes an ejector assembly 400, an ignition needle 500, a gas distribution seat 300, and a fire cover assembly. The fire cover assembly is connected with the gas distribution seat 300 and encloses a mixing chamber. The fire cover assembly is provided with a fire outlet hole 1211 and an ignition hole 1221. The ejector assembly 400 communicates with the mixing chamber and is used to introduce mixed gas of fuel gas and air into the mixing chamber. The ignition needle 500 is arranged beside the ignition hole 1221 and is used to ignite the mixed gas in the ignition hole 1221.
[0043] Optionally, the fire cover assembly comprises an outer ring fire cover 200 and an inner ring fire cover 100, the outer ring fire cover 200 is annular and is located outside the inner ring fire cover 100, the outer ring fire cover 200 and the gas distribution seat 300 form an outer ring gas mixing chamber, the inner ring fire cover 100 and the gas distribution seat 300 form an inner ring gas mixing chamber, the outer ring fire cover 200 and the inner ring fire cover 100 are both provided with a fire outlet hole 1211, the inner ring fire cover 100 is provided with an ignition hole 1221, and the ignition needle 500 is located between the outer ring fire cover 200 and the inner ring fire cover 100.
[0044] It should be noted here that the injection assembly 400, the gas distribution seat 300, the ignition needle 500 and the outer ring fire cover 200 are all existing structures in the art, and any injection assembly 400, gas distribution seat 300 and outer ring fire cover 200 in the prior art can be used in the present embodiment, which will not be introduced here.
[0045] As shown in Figure 3 The inner ring fire cover 100 comprises a fire cover body 10, the fire cover body 10 comprises a top plate 11 and a side plate 12 connected to the edge of the top plate 11 and extending downward, the side plate 12 is provided with a fire outlet hole 1211, the top plate 11 is provided with a groove 111, the fire cover body 10 is provided with an overflow groove 30, the overflow groove 30 is in communication with the groove 111 and extends downward along the side plate 12. The groove 111 can receive the soup spilled on the pot, and the overflow groove 30 around the groove 111 can guide the soup in the groove 111 in a certain direction, so that the soup in the groove 111 can flow downward under the action of gravity through the overflow groove 30 and will not flow to other positions, thereby avoiding the blockage of the holes on the inner ring fire cover 100.
[0046] It can be understood that the soup spilled on the pot generally flows downward along the outer wall of the pot, and by arranging the groove 111 on the top plate 11 to form an inner recessed soup receiving structure, most of the soup can be received to avoid random flow of the soup; and by arranging the fire outlet hole 1211 on the side plate 12, the soup is prevented from directly dripping on the side plate 12, thereby preventing the blockage of the fire outlet hole 1211.
[0047] In some embodiments, a plurality of overflow grooves 30 are arranged, and the plurality of overflow grooves 30 are arranged at intervals along the circumference of the fire cover body 10. By arranging a plurality of overflow grooves 30, the soup in the groove 111 can be guided in multiple directions, avoiding excessive soup in the groove 111 from overflowing to positions where no overflow groove 30 is arranged.
[0048] As shown in Figure 3 Exemplarily, the overflow groove 30 is provided with four overflow grooves 30, the four overflow grooves 30 are uniformly and intervaliy arranged along the circumference of the fire cover body 10, the overflow speed of the four overflow grooves 30 meets the use requirement, and the area occupied on the fire cover body 10 is relatively small, which will not affect the effective fire outlet area on the fire cover body 10.
[0049] In other embodiments, the number of overflow grooves 30 can be set as needed, and can be 1, 2, 3, 5, or more.
[0050] To facilitate the soup in the groove 111 to automatically flow to the overflow groove 30, at least one end of the overflow groove 30 that communicates with the groove 111 is downwardly inclined. That is, the end of the overflow groove 30 that connects with the groove 111 is inclined, so that the height of the bottom surface of the groove 111 is higher than the height of the bottom surface of the end of the overflow groove 30 that communicates with the groove 111, so that the soup enters the overflow groove 30 under the action of gravity.
[0051] For ease of introduction, the overflow groove 30 includes a first overflow section 31 and a second overflow section 32 in communication, the top end of the first overflow section 31 communicates with the groove 111, and the bottom end connects the second overflow section 32. Among them, along the radial direction of the fire cover body 10 towards the edge of the fire cover body 10, the first overflow section 31 is downwardly inclined from top to bottom. That is, the end of the first overflow section 31 that communicates with the groove 111 is high in height, and the other end of the first overflow section 31 is low in height, so that the soup flows under the action of gravity.
[0052] In some embodiments, at least the width of the end of the overflow groove 30 that communicates with the groove 111 gradually decreases in the direction away from the groove 111. This arrangement causes the end of the overflow groove 30 that connects with the groove 111 to be outwardly expanding, which can reduce the resistance experienced by the soup in the groove 111 when entering the overflow groove 30, increase the maximum flow rate from the groove 111 to the overflow groove 30, and facilitate the soup to be discharged as soon as possible.
[0053] Specifically, the width of the first overflow section 31 gradually decreases in the direction away from the groove 111, that is, the wider end of the first overflow section 31 communicates with the groove 111, and the relatively narrower end communicates with the second overflow section 32.
[0054] In other embodiments, the width of the overflow groove 30 can gradually decrease from the end that communicates with the groove 111 to the other end, that is, the widths of the first overflow section 31 and the second overflow section 32 are both gradually decreasing.
[0055] In some embodiments, the depth of the overflow groove 30 is 1-5 mm, preferably 1-4 mm. This depth range can both prevent the soup in the overflow groove 30 from overflowing to both sides and ensure the stability of the transmission performance, avoiding the influence of the overflow groove 30 on the transmission of the flame in the circumferential direction of the fire cover body 10.
[0056] Exemplarily, typical non-limiting values of the depth of the overflow groove 30 can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm.
[0057] In some embodiments, the side plate 12 is arranged to be inclined radially outwardly from top to bottom along the fire cover body 10. That is, the outer diameter of the top end of the side plate 12 is small, and the outer diameter of the bottom end of the side plate 12 is large. This arrangement can make the second overflow section 32 on the side plate 12 be arranged to be inclined, which is conducive to the soup in the second overflow section 32 flowing downward under the action of gravity.
[0058] To avoid the overflow groove 30 affecting the flame transmission performance of the flame, in some embodiments, the side plate 12 is provided with a flame transmission hole on the opposite sides of the overflow groove 30, and the flame transmission hole is arranged adjacent to the overflow groove 30, which can ensure the connection of the flames on both sides of the overflow groove 30, improve the uniformity of the flame, and improve the cooking effect.
[0059] In some embodiments, as shown in Figure 4 and Figure 5 , the side plate 12 is configured with a soup-proof eave 123, the side plate 12 includes an upper side plate 121 above the soup-proof eave 123 and a lower side plate 122 below the soup-proof eave 123, the fire outlet hole 1211 is arranged on the upper side plate 121, and the bottom end of the overflow groove 30 extends and penetrates through the soup-proof eave 123. By arranging the soup-proof eave 123, the soup entering the overflow groove 30 will be guided to the soup-proof eave 123 and drip downward under the action of gravity to separate from the side plate 12, thereby avoiding clogging the ignition needle 500.
[0060] In addition, the ignition needle 500 can be located below the soup-proof eave 123 to shield the ignition needle 500 by the soup-proof eave 123, so as to avoid the soup directly falling on the ignition needle 500.
[0061] In some embodiments, the upper side plate 121 is provided with a fire passing hole 1212 on the opposite sides of the overflow groove 30, so as to avoid the overflow groove 30 blocking the flame and ensure that the flame can be formed around the fire cover body 10.
[0062] In some embodiments, the lower side plate 122 is provided with a lower air outlet hole, which includes an ignition hole 1221 and / or a fire maintaining hole 1223. By arranging the lower air outlet hole on the lower side plate 122, on the one hand, the soup can be prevented from directly dripping on the lower air outlet hole, and on the other hand, the lower air outlet hole can be shielded by the soup-proof eave 123, so that the overflowed soup vertically falls at the soup-proof eave 123 and does not pass through the lower air outlet hole, further avoiding the clogging of the lower air outlet hole.
[0063] Optionally, as shown in Figure 5 , the lower side plate 122 is provided with the ignition hole 1221 and the fire maintaining hole 1223. The ignition hole 1221 and the fire maintaining hole 1223 are arranged to be spaced apart along the circumference of the fire cover body 10, wherein the ignition hole 1221 is arranged to correspond to the ignition needle 500 to facilitate ignition.
[0064] To improve the blocking effect of the soup-preventing eaves 123 on soup, the bottom end of the side plate 12 is provided with an inwardly recessed notch, which forms a step structure on the side plate 12 to form the soup-preventing eaves 123 above the notch. Because the soup-preventing eaves 123 protrude below the lower side plate 122, soup flowing to the soup-preventing eaves 123 can directly vertically drip on the soup-preventing eaves 123 without flowing onto the lower side plate 122, avoiding contact between the soup and the ignition hole 1221 or the fire-keeping hole 1223.
[0065] In some embodiments, at least one side of the lower side gas outlet hole is provided with a flame-stabilizing hole, which extends in a direction from inside to outside and close to the lower side gas outlet hole. By providing the flame-stabilizing hole, the mixed gas flowing out of the flame-stabilizing hole can collide with the mixed gas flowing out of the lower side gas outlet hole, achieving the purpose of deceleration by gas collision, so that the gas can be stably burned at the lower side gas outlet hole, achieving the effect of stabilizing the flame.
[0066] In addition, by providing the flame-stabilizing hole, the flame-stabilizing hole can effectively prevent the flame of the ignition hole 1221 from producing a flame separation phenomenon when the gas pressure is too large or the primary air supply is too much.
[0067] In some embodiments, the opposite sides of the lower side gas outlet hole are both provided with flame-stabilizing holes to improve the flame-stabilizing effect.
[0068] In some embodiments, as shown in Figure 6 the flame-stabilizing hole can also be inclined from inside to outside and upward, so that the mixed gas flowing out of the flame-stabilizing hole flows toward the step surface of the soup-preventing eaves 123, and the step surface blocks the mixed gas to achieve the purpose of reducing the flow rate of the mixed gas, thereby improving the flame-stabilizing effect.
[0069] To ensure the flame-stabilizing effect, in some embodiments, the minimum distance between the flame-stabilizing hole and the adjacent lower side gas outlet hole is 0.2-2.5 mm, and preferably 0.5-2 mm. Within this distance range, the flame-stabilizing effect of the flame-stabilizing hole on the lower side gas outlet hole is better. Exemplarily, typical but non-limiting numerical values of the minimum distance between the flame-stabilizing hole and the adjacent lower side gas outlet hole are 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm.
[0070] Exemplarily, as shown in Figure 5 the flame-stabilizing hole can also be inclined from inside to outside and upward, so that the mixed gas flowing out of the flame-stabilizing hole flows toward the step surface of the soup-preventing eaves 123, and the step surface blocks the mixed gas to achieve the purpose of reducing the flow rate of the mixed gas, thereby improving the flame-stabilizing effect.
[0071] In some embodiments, as shown in Figure 7 the lower air outlet hole horizontally extends. This arrangement ensures that the outer end of the lower air outlet hole is far enough from the soup-proof eave 123 to ensure that there is enough space for the lower air outlet hole to draw in air, ensuring the stability of the combustion.
[0072] To avoid the soup dripping from the soup-proof eave 123 affecting the lower air outlet hole, the lower air outlet hole and the overflow groove 30 are arranged along the circumference of the fire cover body 10, so that the lower air outlet hole and the overflow groove are staggered to avoid the soup blocking the lower air outlet hole 1211.
[0073] In some embodiments, as shown in Figure 5 and Figure 7 The inner ring fire cover 100 further comprises a center tube 20, which is arranged in the fire cover body 10, and the top end of the center tube 20 protrudes from the top plate 11. The groove 111 is an annular groove and is arranged around the center tube 20. By arranging the center tube 20, the pot placed on the stove can avoid direct contact with the fire cover body 10, ensuring that the flame generated by the inner ring pot cover has a certain height space, improving the cooking effect.
[0074] In some embodiments, the outer circumferential surface of the center tube 20 is provided with an oxygen supplementing and heat dissipating hole 21 above the top plate 11. The oxygen supplementing and heat dissipating hole 21 is in communication with the inside of the center tube 20, which is used to supplement oxygen to the inner ring fire cover 100, and can diffuse the heat generated during the combustion of the gas from the inside of the center tube 20 to the outside, reducing the temperature at the center position of the inner ring fire cover 100.
[0075] In some embodiments, the height difference H between the oxygen supplementing and heat dissipating hole 21 and the top plate 11 is 1-5mm, preferably 2-4mm. Within this height range, it can not only prevent the soup or water stains from flowing into the center tube 20, but also reduce the temperature at the center position of the inner ring fire cover 100. Exemplarily, the typical but non-limiting values of the height difference H between the oxygen supplementing and heat dissipating hole 21 and the top plate 11 are 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm.
[0076] The inner ring fire cover 100 is provided with the top plate 11 arranged as an inner concave soup receiving structure, the overflow groove 30 is arranged at the outer peripheral position of the inner ring fire cover 100 as a soup overflow structure, and the soup eave 123 is arranged above the ignition hole 1221 and the fire keeping hole 1223. When the soup overflows to the upper side of the inner ring fire cover 100, the soup is first received in the groove 111 at the center position, then flows out to the overflow groove 30 at the periphery, and then flows to the soup eave 123 above the fire keeping hole 1223 and the ignition hole 1221, and then vertically flows down under the action of gravity, and will not flow to the ignition hole 1221, so that the problems that the soup blocks the ignition hole 1221 and the fire keeping hole 1223 to cause the ignition failure and the use failure can be effectively solved.
[0077] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An inner ring fire cover characterized by, The fire cover body (10) comprises a top plate (11) and a side plate (12) connected with the edge of the top plate (11) and extending downward, the side plate (12) is provided with a fire outlet hole (1211), the top plate (11) is provided with a groove (111), and the fire cover body (10) is provided with an overflow groove (30) in communication with the groove (111) and extending downward along the side plate (12).
2. The inner ring flame cap of claim 1, wherein, A plurality of overflow grooves (30) are arranged along the circumference of the fire cover body (10) at intervals. At least the width of the end of the overflow groove (30) in communication with the groove (111) gradually decreases in the direction away from the groove (111). At least the end of the overflow groove (30) in communication with the groove (111) is inclined downward. The depth of the overflow groove (30) is 1-5 mm. The side plate (12) is inclined outward along the radial direction of the fire cover body (10) from top to bottom. The side plate (12) is provided with a fire transfer hole on the opposite sides of the overflow groove (30).
3. The inner ring flame cap of claim 1 or 2, wherein, The side plate (12) is provided with a soup eave (123), and the side plate (12) comprises an upper side plate (121) above the soup eave (123) and a lower side plate (122) below the soup eave (123), the fire outlet hole (1211) is arranged on the upper side plate (121), and the bottom end of the overflow groove (30) extends through the soup eave (123).
4. The inner ring flame cap of claim 3 wherein, The lower side plate (122) is provided with a lower side air outlet hole, and the lower side air outlet hole comprises an ignition hole (1221) and / or a fire retaining hole (1223). At least the bottom end of the side plate (12) is provided with a concave notch to form the soup eave (123) above the notch.
5. The inner ring flame cap of claim 4 wherein, The lower side air outlet hole extends horizontally. At least the lower side air outlet hole and the overflow groove (30) are arranged at intervals along the circumference of the fire cover body (10). At least one side of the lower side plate (122) is provided with a flame stabilizing hole.
6. The inner ring flame cap of claim 5 wherein, The flame stabilizing hole extends obliquely from inside to outside towards the lower side air outlet hole. The minimum distance between the flame stabilizing hole and the adjacent lower side air outlet hole is 0.2-2.5 mm.
7. The inner ring flame cap of claim 1 or 2, wherein, The inner ring fire cover further comprises a center pipe (20) penetrating the fire cover body (10), the groove (111) is an annular groove arranged around the center pipe (20), and the outer circumferential surface of the center pipe (20) is provided with an oxygen supplementing and heat dissipating hole (21) above the top plate (11).
8. The inner ring flame cap of claim 7 wherein, The height difference between the oxygen supplementing and heat dissipating hole (21) and the top plate (11) is 1-5 mm.
9. A burner characterized by, The inner ring fire cover comprises a gas distribution seat (300) and an inner ring fire cover according to any one of claims 1-8, the inner ring fire cover is connected with the gas distribution seat (300) and surrounds an inner ring gas mixing chamber, and the fire outlet hole (1211) is in communication with the inner ring gas mixing chamber.
10. A hob, characterized in that A burner as claimed in claim 9.