CN211822385U

CN211822385U - Inner ring fire cover and cooker burner with same

Info

Publication number: CN211822385U
Application number: CN201922263295.2U
Authority: CN
Inventors: 杨杰; 郑军妹; 宋猛
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-10-30
Anticipated expiration: 2029-12-16

Abstract

An inner ring fire cover comprises a fire cover body (1) and a cover body (2) covering the fire cover body (1), wherein fire holes (11) are formed in the peripheral wall of the fire cover body (1) along the circumferential direction; the method is characterized in that: the top of the cover body (2) is sunken downwards to form a liquid containing groove (21) for collecting overflowing liquid, at least one side of the periphery of the cover body (2) is provided with an opening (22) communicated with the liquid containing groove (21) and used for overflowing liquid to flow out, and the side wall of the fire cover body (1) is provided with a diversion groove (10) corresponding to the opening (22) and used for overflowing liquid to flow down along the diversion groove. The application also discloses a cooker burner with the inner ring fire cover. Compared with the prior art, this application can collect the overflow and make the overflow concentrate along inner ring fire lid one side concentrate and flow down, reduce the risk that the overflow blockked up out the fire hole.

Description

Inner ring fire cover and cooker burner with same

Technical Field

The utility model belongs to the technical field of cooking utensils combustor, concretely relates to inner ring fire lid and applied cooking utensils combustor that has this inner ring fire lid.

Background

The inner ring fire cover of the existing stove burner generally comprises a fire cover body with an open upper part and a cover body which is covered on the opening part of the fire cover body, wherein a fire outlet is arranged on the fire cover body. In the cooking process, the overflowing liquid overflowing from the pot can drip onto the cover body and flow downwards to the fire cover body along the cover body, so that a fire outlet on the fire cover body is blocked, and the problems of accidental flameout, poor ignition and the like of the burner are caused.

In order to overcome the defects of the inner ring fire cover of the existing burner, the inner ring fire cover disclosed in the invention patent application with the application number of CN201710447014.1, namely 'inner ring fire cover of a gas burner' (with the application publication number of CN108006641A), comprises a fire cover body and a cover body, wherein the periphery of the cover body is outwards protruded from the fire cover body along the horizontal direction, and the bottom of at least part of the periphery extends downwards to form a waterproof brim. However, the structure of the cover body in the application can cause the overflowing liquid to randomly flow down along the periphery of the cover body, and the overflowing liquid flowing down is easily influenced by external factors to flow into the fire outlet, so that the fire outlet is blocked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem to provide a can collect the overflow and make the overflow concentrate along inner ring fire lid one side concentrate the inner ring fire lid of the cooking utensils combustor that flows down to reduce the risk that the overflow blockked up out the fire hole to prior art's current situation.

The utility model aims to solve the second technical problem that an inner ring fire lid of cooking utensils combustor that flame stabilizing effect is good and can reduce overflow and block up flame stabilizing hole risk is provided.

The utility model aims to solve the third technical problem that an inner ring fire lid through changing the structure of fire lid body is provided for fire lid body itself has the anti-overflow function.

The fourth technical problem to be solved by the utility model is to provide a cooking utensils combustor that uses and has above-mentioned inner ring fire lid.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: an inner ring fire cover comprises a fire cover body and a cover body covering the fire cover body, wherein fire holes are formed in the circumferential direction of the side circumferential wall of the fire cover body; the method is characterized in that: the top of the cover body is sunken downwards to form a liquid containing groove for collecting overflowing liquid, at least one side of the periphery of the cover body is provided with an opening communicated with the liquid containing groove for overflowing liquid to flow out, and the side wall of the fire cover body corresponding to the opening is provided with a flow guide groove for overflowing liquid to flow down along.

In order to prevent the fire hole from being blocked by the overflow liquid flowing out from other places, preferably, the periphery of the cover body protrudes out of the fire cover body along the horizontal direction to form a waterproof brim.

In order to enlarge the liquid containing area and enable the overflowing liquid to smoothly flow down along the flow guide groove, preferably, the projection of the groove bottom of the liquid containing groove on the horizontal plane covers the projection of the fire cover body on the horizontal plane.

Preferably, the bottom of the liquid containing groove is circular, the outer peripheral surface of the fire cover body is enclosed to form a circle, and the diameter of the bottom of the liquid containing groove is larger than or equal to the diameter of the circle enclosed by the outer peripheral surface of the fire cover body. Therefore, when the overflowing liquid occurs, the overflowing liquid can smoothly flow out of the flow guide groove, and the overflowing liquid cannot be accumulated due to the viscosity of the overflowing liquid and the tension of the overflowing liquid and flow out of other places to block the fire hole.

When the overflow liquid flows out from other places, in order to further prevent the overflow liquid from flowing to the fire outlet, the peripheral wall of the waterproof eaves is provided with a part extending downwards so as to guide the overflow liquid to flow downwards along the outer surface of the waterproof eaves.

Preferably, the whole bottom of the downward extending part on the peripheral wall of the waterproof eaves is sharp-angled. So, can reduce the hanging area, and then reduce the hanging adhesion of liquid drop, when the overflow, the liquid drop is in the constantly increase of sharp angle department, owing to hang the adhesion and reduce, the biggest volume that the liquid drop formed also reduces to avoid the liquid drop to be stained with following fire outlet.

In the above scheme, the depth of the diversion trench is not less than 0.3 mm; therefore, the overflowed liquid can be ensured not to be attached to the fire outlets near the diversion trench when flowing down from the diversion trench, only a plurality of fire outlets on the diversion trench can be blocked, the fire outlets on the diversion trench account for a very small part of the total number of the fire outlets, and after the fire outlets on the diversion trench are blocked, the normal use of the whole inner ring fire cover can not be influenced; the high temperature of the inner ring fire cover can dry the liquid in the overflowing liquid on the fire hole, the food in the overflowing liquid can be carbonized, and the overflowing liquid can disappear, so that the fire hole on the plug is recovered to be smooth;

in order to enable the overflowing liquid to smoothly flow down along the diversion trench, the opening extends into the liquid containing groove, and the diversion trench is connected with the liquid containing groove through a chamfer.

In order to further solve the second technical problem, preferably, a flame stabilizing hole is further formed in the peripheral wall of the side of the fire cover body along the circumferential direction, and the flame stabilizing hole is formed above the fire outlet hole and spaced from the fire outlet hole.

Furthermore, the side periphery wall of the fire cover body is circumferentially provided with flame stabilizing grooves which are connected with the flame stabilizing holes, and the flame stabilizing grooves are arranged to avoid the flow guide grooves. So, the flame stabilizing groove can play the flame stabilizing effect to a great extent, and the flame stabilizing groove avoids the guiding gutter setting and can avoid the overflow on the guiding gutter to pollute the flame stabilizing groove.

In the above scheme, the fire outlets have at least two rows, each of which comprises a first fire outlet and a second fire outlet located below the first fire outlet, and the second fire outlets and the first fire outlets are arranged at intervals. Therefore, the second fire outlet hole positioned below can make up the defect that the flame of the first fire outlet hole is short.

In order to further solve the third technical problem, it is preferable that the fire lid body includes a first body and a second body which are respectively distributed up and down, and a side peripheral wall of the first body protrudes outward in a radial direction from a side peripheral wall of the second body; the first fire outlet is formed in the side peripheral wall of the first body, and the second fire outlet is formed in the side peripheral wall of the second body. Therefore, the first body can play a role of blocking eaves, the risk that overflow flows to the second body is reduced, and the risk that the second fire outlet on the second body is blocked by the overflow is further reduced; and even if the first fire outlet on the first body is blocked by the overflowing liquid, at the moment, the second fire outlet can continue to emit fire, and after the fire is emitted for a period of time, the overflowing liquid blocked on the first fire outlet can be burnt at high temperature to be carbonized, so that the fire is emitted again. Meanwhile, the first fire outlet and the second fire outlet are not in the same radial direction, so that air cannot be mutually robbed, and the supplement of secondary air is ensured.

Preferably, the fire lid body is approximately inverted in a vertical section and is in a shape like a Chinese character 'tu'.

Preferably, the side peripheral wall of the second body is provided with protruding parts at intervals along the circumferential direction, and the second fire outlet holes are correspondingly arranged on the protruding parts and between two adjacent protruding parts; the side peripheral wall of the first body is protruded outward in the radial direction from the outer side wall of each of the protrusions. The design of the convex parts can prevent overflow from flowing transversely, and simultaneously, a 'cross wind' effect can be formed between two adjacent convex parts, so that secondary air supplement of a second fire outlet positioned between two adjacent convex parts is ensured; simultaneously, first fire outlet on the first body, the second fire outlet on the bulge and the second fire outlet between two adjacent bulges are respectively in different footpath for can not snatch the air each other, and guarantee each fire outlet secondary air's replenishment.

The utility model provides a technical scheme that above-mentioned fourth technical problem adopted does: a stove burner applying the inner ring fire cover is disclosed.

Compared with the prior art, the utility model has the advantages of: through setting up flourishing cistern at the top of lid, set up the guiding gutter on the lateral wall of fire lid body, flourishing cistern can get up the overflow that drips on the lid to with the guiding gutter cooperation, make the overflow concentrate flow out along the guiding gutter is concentrated, avoid the overflow to flow down and block up out the fire hole from other places, reduced the risk that the overflow blockked up out the fire hole.

Through set up steady flame hole and steady flame groove on the lateral wall at the fire lid body for the risk that the steady flame hole was blockked up to the spilled liquid can be reduced when the inner ring fire lid steady flame is effectual.

The fire cover body is designed into a structure with the first body and the second body, and the first body and the second body are respectively provided with the first fire outlet and the second fire outlet, so that after more overflow liquid flows onto the fire cover body, the first body can play a role of blocking eaves, and the risk that the overflow liquid flows onto the second body to block the second fire outlet is reduced; the first fire outlet and the second fire outlet are not in the same radial direction, so that the first fire outlet and the second fire outlet can be prevented from robbing secondary air, and the supplement of the secondary air of each fire outlet is further ensured; meanwhile, the first fire outlet hole is closer to the bottom of the pot, the flame is shorter, and the second fire outlet hole is arranged below the first fire outlet hole for fire compensation, so that the defect of short flame of the first fire outlet hole can be overcome; when the first fire outlet is blocked by the spilled liquid, the second fire outlet is equivalent to the main fire outlet to continue to maintain fire, and in the process, the spilled liquid blocked in the first fire outlet can be carbonized at high temperature, so that the first fire outlet recovers to fire.

Drawings

Fig. 1 is a schematic structural view of a gas cooker in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural view of an inner ring fire cover according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of an inner ring fire cover in another view angle according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a further viewing angle of the inner ring fire cover in the first embodiment of the present invention;

FIG. 7 is a schematic structural view of a cooking appliance burner according to a second embodiment of the present invention;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is an enlarged view of portion A of FIG. 8;

fig. 10 is a schematic structural view of an inner ring fire cover in the second embodiment of the present invention;

fig. 11 is a schematic structural view of an inner ring fire cover in a second embodiment of the present invention from another viewing angle;

fig. 12 is a schematic structural view of another view angle of the inner ring fire cover in the second embodiment of the present invention;

fig. 13 is a cross-sectional view of an inner ring fire cover in a second embodiment of the present invention;

fig. 14 is another cross-sectional view of the inner ring fire cover according to the second embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The first embodiment is as follows:

as shown in fig. 1-6, for the utility model discloses an inner ring fire lid and applied preferred embodiment one of the cooking utensils combustor that has this inner ring fire lid, this inner ring fire lid is including fire lid body 1 and the lid 2 that covers on fire lid body 1, but fire lid body 1 and lid 2 body coupling also separately set up. The side peripheral wall of the fire cover body 1 is circumferentially provided with fire outlets, flame stabilizing holes 17 'and flame stabilizing grooves 18 connecting the flame stabilizing holes 17', wherein the fire outlets are arranged in two rows, namely a first fire outlet 13 and a second fire outlet 14 positioned below the first fire outlet 13, and the second fire outlet 14 and the first fire outlet 13 are arranged at intervals; the aperture of the second fire outlet 14 is smaller than that of the first fire outlet 13; the flame stabilizing holes 17' are arranged above the first fire outlet holes 13 and are spaced from the first fire outlet holes 13. The staggered arrangement of the fire outlet holes and the flame stabilizing holes 17' can stabilize flame mutually and cannot influence each other during combustion. The flame holding groove 18 is opened along the center of the flame holding hole 17'.

The top wall of the cover body 2 is closed, the periphery of the top wall protrudes out of the fire cover body 1 along the horizontal direction to form a waterproof eaves 20, the peripheral wall of the waterproof eaves 20 is provided with a part extending downwards so as to guide overflowing liquid to flow down along the outer surface of the waterproof eaves 20, and the bottom of the part extending downwards on the peripheral wall of the waterproof eaves 20 is integrally provided with a sharp corner extending downwards.

The top of the cover body 2 is recessed downwards to form a liquid containing groove 21 for collecting overflowing liquid, one side of the cover body 2 is provided with an opening 22 for the overflowing liquid to flow out of the liquid containing groove 21, and the opening 22 is arranged on the periphery of the cover body 2 and extends into the liquid containing groove 21; the side wall of the fire cover body 1 is provided with a diversion trench 10 corresponding to the opening 22 for overflowing liquid to flow down along, the depth of the diversion trench 10 is not less than 0.3mm, and the diversion trench 10 and the liquid containing groove 21 are connected through a round chamfer angle, so that the overflowing liquid can smoothly flow down along the diversion trench 10. In this embodiment, the bottom of the liquid tank 21 is circular, the outer periphery of the fire lid body 1 is rounded, and the diameter of the bottom of the liquid tank 21 is larger than or equal to the diameter of the circle formed by the outer periphery of the fire lid body 1.

In order to prevent the overflowed liquid from entering the flame stabilizing groove 18 to affect the flame stabilizing effect, the flame stabilizing groove 18 is disposed to avoid the flow guide groove 10, i.e. two ends of the flame stabilizing groove 18 are separated from the flow guide groove 10, and the overflowed liquid in the flow guide groove 10 cannot enter the flame stabilizing groove 18.

In this embodiment, in order to enhance the fire transmission capability of the fire holes, the guiding gutter 10 has a few fire holes and flame stabilizing holes 17 ', and the overflow flowing through the guiding gutter 10 may block the fire holes and flame stabilizing holes 17 ', but because the number of the fire holes and flame stabilizing holes 17 ' is small, the combustion of the inner ring fire cover as a whole is not affected. In order to reduce the risk that the fire outlet is blocked, the fire outlet can be arranged in a downward inclination from inside to outside. And even if the fire outlet and the flame stabilizing hole on the flow guide groove 10 are blocked by the overflow liquid, the overflow liquid can be burnt and carbonized at a high temperature for a period of time to recover the normal fire.

As shown in fig. 1 to 3, for the stove burner with the above inner ring fire cover, when the inner ring fire cover is installed on the stove head 3, the highest surface of the matching position of the stove head 3 and the inner ring fire cover cannot be higher than the lowest point of the fire hole in the inner ring fire cover, i.e. the lowest point of the second fire hole 14, so that the inner ring fire cover can give vent to air smoothly, and most importantly, an annular groove cannot be formed between the inner ring fire cover and the inner ring fire cover, otherwise, once liquid overflow occurs, the whole ring of fire hole is blocked.

Example two:

as shown in fig. 7-14, for the utility model discloses an inner ring fire lid and applied preferred embodiment two of the cooking utensils combustor that has this inner ring fire lid, this inner ring fire lid is including fire lid body 1 and the lid 2 that covers on fire lid body 1.

The top wall of the cover body 2 is closed, the periphery of the top wall protrudes out of the fire cover body along the horizontal direction to form a waterproof brim 20, and the peripheral wall of the waterproof brim is provided with a part which extends downwards and is inclined inwards so as to guide overflowing liquid to flow downwards along the part. A plurality of first recesses 200 are concavely arranged on the bottom surface of the inclined downward extending part on the peripheral wall of the waterproof eaves 20, and the first recesses 200 are circumferentially distributed at intervals.

The top of the cover body 2 is sunken downwards to form a liquid containing groove 21 for collecting overflowing liquid, the caliber of the notch of the liquid containing groove 21 is gradually reduced from top to bottom, and the projection of the groove bottom of the liquid containing groove 21 on the horizontal plane covers the projection of the fire cover body 1 on the horizontal plane; an opening 22 communicated with the liquid containing groove 21 and used for overflowing liquid to flow out is formed in one side of the periphery of the cover body 2, and the opening 22 extends into the liquid containing groove 21; the side wall of the fire cover body 1 is provided with a diversion trench 10 corresponding to the opening 22 for the overflow to flow down along, and the diversion trench 10 is connected with the liquid containing groove 21 through a chamfer angle.

Meanwhile, the side peripheral wall of the fire cover body 1 is provided with an ignition hole 11, and the periphery of the cover body 2 above the ignition hole 11 is provided with a water retaining brim 23 extending outwards. The peripheral wall of the water retaining brim 23 extends obliquely downward to form an inclined part along which the overflow flows downward, and the inclined part inclines outward. Because the peripheral wall of the water-blocking eave 23 is inclined outwards, the peripheral wall of the water-blocking eave 20 is inclined inwards, and the joint of the two is an included angle area which is easy to cause the overflow to flow down intensively, in this embodiment, the joint of the water-blocking eave 23 and the cover body 3 is provided with a filling part 24 of which the outer surface is inclined outwards and extends downwards. Meanwhile, the top of the water-blocking eaves 23 is recessed downwards to form a groove 230 communicated with the liquid tank 21. The bottom surface of the water retaining eaves 23 is recessed upwards to form a pit 231, the wall surface of the pit 231 is inclined downwards from the middle part to the periphery so as to allow overflow to flow downwards along the pit 231, and the middle part of the pit 231 is provided with an ignition column 232 in a downward protruding manner. There are no other tips around the ignition column 232, so that the closest point and the tip point can be found during the electric spark discharge, thereby being beneficial to ensuring the position of the electric spark and improving the ignition success rate. Meanwhile, as the ignition column 232 is arranged in the middle of the pit 231, when the overflow enters the bottom surface of the water retaining brim 23, the overflow can flow outwards along the wall surface of the pit 231 under the action of self gravity and gather and drip, and the ignition success rate is effectively prevented from being influenced by hanging water drops on the ignition column 232 (as the overflow has conductivity, the liquid drops hang on the ignition column 232 and influence the ignition distance, and further influence the ignition success rate).

In this embodiment, the longitudinal section of the fire cover body 1 is substantially in an inverted "convex" shape, and includes a first body 1a located at the upper portion and a second body 1b located at the lower portion and having an outer diameter smaller than that of the first body 1a, a side peripheral wall of the first body 1a protrudes outward from a side peripheral wall of the second body 1b in the radial direction, a first flame attenuating hole 12 and a first fire emitting hole 13 are circumferentially provided on the side peripheral wall of the first body 1a, wherein the first flame stabilizing hole 12 is provided at the bottom of an inclined downward extending portion on the peripheral wall of the waterproof eaves 20, and is provided above the first fire emitting hole 13 at an interval with the first fire emitting hole 13. The first notch 200 is provided corresponding to the first attenuated hole 12, and the first notch 200 is formed along with the first attenuated hole 12 when the first attenuated hole 12 is attenuated. The diversion trench 10 is disposed on the first body 1a, a small number of first fire outlets 13 (one in this embodiment) are located on the diversion trench 10, and the first fire outlets 13 on the diversion trench 10 are inclined downward from inside to outside, in this embodiment, the first fire outlets 13 on the diversion trench 10 are higher than the other first fire outlets 13. Please refer to fig. 10 and 13.

The second fire outlet 14 is arranged on the side peripheral wall of the second body 1b along the circumferential direction, the second fire outlet 14 is arranged below the first fire outlet 13 and is arranged at an interval with the first fire outlet 13, and meanwhile, the aperture of the first fire outlet 13 is larger than that of the second fire outlet 14. Meanwhile, the side peripheral wall of the second body 1b is provided with the protrusions 15 at intervals along the circumferential direction, and the second fire outlet holes 14 are correspondingly arranged on each protrusion 15 and between two adjacent protrusions 15. The side peripheral wall of the first body 1a protrudes in the radial direction beyond the outer side wall of each projection 15. In this embodiment, the second fire holes 14 are inclined upward from inside to outside, and second notches 16 for the second fire holes 14 to come out along are formed in the bottom surface of the first body 1a corresponding to the second fire holes 14. Similarly, the second recess 16 can prevent the overflow from flowing laterally along the bottom surface of the second body 1b to block one of the second fire holes 14.

Meanwhile, a third flame stabilizing hole 17 is further formed in the side peripheral wall of the second body 1b along the circumferential direction, and the third flame stabilizing hole 17 is located above the second flame outlet 14 and is spaced from the second flame outlet 14. In this embodiment, the third flame stabilizing hole 17 is disposed corresponding to each first flame outlet 13 outside the guiding groove 10 and is communicated with the corresponding first flame outlet 13. And the side peripheral wall of the second body 1b is provided with flame stabilizing grooves 18 connecting the third flame stabilizing holes 17 along the circumferential direction. In order to prevent the overflow liquid from flowing transversely in the flame stabilizing groove 18 and blocking a third flame stabilizing hole 17, the convex part 15 is arranged below the flame stabilizing groove 18, and the upper end surface 151 of the convex part 15, which is connected with the flame stabilizing groove 18, inclines downwards so as to guide the overflow liquid to flow downwards along the upper end surface.

Meanwhile, as shown in fig. 14, a fire protection hole 19 adapted to the thermocouple is formed in the fire cover body 1, and the fire protection hole 19 is inclined downward from inside to outside.

As shown in fig. 7 to 9, for the stove burner with the inner ring fire cover, when the inner ring fire cover is installed on the stove head 3, the highest surface of the matching position of the stove head 3 and the inner ring fire cover cannot exceed the lowest point of the second fire outlet 14 in the inner ring fire cover, so that the inner ring fire cover can give vent to air smoothly, and most importantly, an annular groove cannot be formed between the highest surface and the inner ring fire cover, otherwise, once liquid overflow occurs, the whole ring of fire outlet is blocked.

Claims

1. An inner ring fire cover comprises a fire cover body (1) and a cover body (2) covering the fire cover body (1), wherein fire holes are formed in the peripheral wall of the fire cover body (1) along the circumferential direction; the method is characterized in that: the top of the cover body (2) is sunken downwards to form a liquid containing groove (21) for collecting overflowing liquid, at least one side of the periphery of the cover body (2) is provided with an opening (22) communicated with the liquid containing groove (21) and used for overflowing liquid to flow out, and the side wall of the fire cover body (1) is provided with a diversion groove (10) corresponding to the opening (22) and used for overflowing liquid to flow down along the diversion groove.

2. The inner ring fire cover of claim 1, wherein: the periphery of the cover body (2) protrudes out of the fire cover body (1) along the horizontal direction to form a waterproof brim (20).

3. The inner ring fire cover of claim 2, wherein: the projection of the tank bottom of the liquid containing tank (21) on the horizontal plane covers the projection of the fire cover body (1) on the horizontal plane.

4. The inner ring fire cover according to claim 3, wherein: the bottom of the liquid containing groove (21) is circular, the outer peripheral surface of the fire cover body (1) is enclosed to form a circle, and the diameter of the bottom of the liquid containing groove (21) is larger than or equal to that of the circle enclosed by the outer peripheral surface of the fire cover body (1).

5. The inner ring fire cover of claim 2, wherein: the peripheral wall of the waterproof eaves (20) is provided with a part extending downwards so as to guide overflowing liquid to flow downwards along the outer surface of the waterproof eaves.

6. The inner ring fire cover of claim 5, wherein: the whole bottom of the downward extending part on the peripheral wall of the waterproof eaves (20) is in a sharp angle.

7. The inner ring fire cover of claim 1, wherein: the depth of the flow guide groove (10) is not less than 0.3 mm; the opening (22) extends into the liquid containing groove (21), and the diversion groove (10) is connected with the liquid containing groove (21) through a chamfer.

8. The inner ring fire cover of claim 2, wherein: and a flame stabilizing hole (17 ') is further formed in the peripheral wall of the side of the fire cover body (1) along the circumferential direction, and the flame stabilizing hole (17') is formed above the fire outlet hole and is arranged at an interval with the fire outlet hole.

9. The inner ring fire cover of claim 8, wherein: the side peripheral wall of the fire cover body (1) is provided with flame stabilizing grooves (18) which are connected with the flame stabilizing holes (17') along the circumferential direction, and the flame stabilizing grooves (18) are arranged to avoid the diversion trenches (10).

10. The inner ring fire cover of claim 2, wherein: the fire outlets are at least two rows and respectively comprise a first fire outlet (13) and a second fire outlet (14) positioned below the first fire outlet (13), and the second fire outlet (14) and the first fire outlet (13) are arranged at intervals.

11. The inner ring fire cover of claim 10, wherein: the fire cover body (1) comprises a first body (1a) and a second body (1b) which are distributed up and down respectively, and the side peripheral wall of the first body (1a) is protruded outwards of the side peripheral wall of the second body (1b) in the radial direction; the first fire outlet holes (13) are formed in the side peripheral wall of the first body (1a), and the second fire outlet holes (14) are formed in the side peripheral wall of the second body (1 b).

12. The inner ring fire cover of claim 11, wherein: the longitudinal section of the fire cover body (1) is approximately in an inverted convex shape.

13. The inner ring fire cover of claim 12, wherein: the side peripheral wall of the second body (1b) is provided with bulges (15) at intervals along the circumferential direction, and the second fire outlet holes (14) are correspondingly arranged on the bulges (15) and between two adjacent bulges (15); the side peripheral wall of the first body (1a) is protruded in the radial direction to the outer side wall of each of the projections (15).

14. A cooker burner applying the inner ring fire cover of any one of claims 1 to 13.