CN209295125U - Central flame cap and burner - Google Patents

Abstract

The utility model provides a kind of central flame cap and burner, is related to kitchen range technical field.The central flame cap includes integrally formed lid, mutually independent inner ring mixing chamber and middle ring mixing chamber are equipped in lid, the side wall of lid is equipped with inner ring fire bed arranged up and down and middle ring fire bed, inner ring fire bed includes multiple inner ring fire holes along lid circumferential direction dispersed distribution, and inner ring fire hole is connected to inner ring mixing chamber；Middle ring fire bed includes multiple middle ring fire holes along lid circumferential direction dispersed distribution, and middle ring fire hole is connected to middle ring mixing chamber；The burner includes distributor pedestal and above-mentioned central flame cap, and central flame cap is covered on distributor pedestal, and inner ring mixing chamber is connected to the inner ring pedestal of distributor pedestal, and middle ring mixing chamber is connected to the middle ring pedestal of distributor pedestal.Inner ring fire bed and middle ring fire bed on the central flame cap can carry out dual-heated to the medium position of cookware, and reduction cookware middle part and the heat that edge is heated are poor, to improve the being heated evenly property of cookware bottom.

Description

Central flame cap and burner

Technical field

The utility model relates to kitchen range technical field more particularly to a kind of central flame caps and burner.

Background technique

Gas-cooker is the kitchen article that heating cooking is carried out to food, and at work, combustion gas enters gas-cooker from air inlet pipe In stove, enter in burner after adjusting (user is adjusted by the knob) effect by regulating valve, while empty with a part Gas is mixed, after mixed gas enters distributor, be ignited device light and from fire hole spray form flame, be used to plus Heat is placed in the cookware on pan bracket.

Currently, the burner of gas-cooker in the market generally comprises external ring fire cover and interior ring fire cover, wherein external ring fire cover is made Based on fire cookware is heated, interior ring fire cover as auxiliary fire to being heated in the middle part of cookware, however, existing burner In use, interior ring fire cover small volume, it is also poor to the heating effect in the middle part of cookware to generate flame, and lead to the process cookware that boils Middle part be heated less, cause cookware uneven heating even, influence is boiled effect and duration.

That is, existing burner in use, be heated less in the middle part of cookware, causes the influence of cookware uneven heating to be boiled effect.

Utility model content

The purpose of this utility model is to provide a kind of central flame cap and burners, to solve combustion existing in the prior art Burner in use, cookware in the middle part of be heated it is less, cause cookware uneven heating influence boil effect the technical issues of.

Provided by the utility model includes integrally formed lid, is equipped with mutually independent inner ring mixing chamber in the lid Inner ring fire bed arranged up and down and middle ring fire bed, the inner ring fire bed packet are equipped with the side wall of middle ring mixing chamber, the lid Multiple inner ring fire holes along the lid circumferential direction dispersed distribution are included, the inner ring fire hole is connected to the inner ring mixing chamber；It is described Middle ring fire bed includes multiple middle ring fire holes along the lid circumferential direction dispersed distribution, the middle ring fire hole and the middle ring mixing chamber Connection.

Further, be circumferentially with the steady flame layer of inner ring along it on the side wall of the lid, the steady flame layer of inner ring with it is described Inner ring fire bed is arranged up and down, carries out steady flame processing for the flame to the inner ring fire bed.

Further, the steady flame layer of the inner ring includes multiple inner ring stable flame holes along the lid circumferential direction dispersed distribution, institute Inner ring stable flame hole is stated to be connected to the inner ring mixing chamber；Multiple inner ring stable flame holes are respectively positioned below the inner ring fire hole, and It is staggered one by one with the inner ring fire hole.

Further, the side wall of the lid is equipped with the steady flame layer of middle ring, the steady flame layer of middle ring and the middle ring fire bed Arrangement up and down carries out steady flame processing for the flame to the middle ring fire bed.

Further, the steady flame layer of the middle ring includes multiple middle ring stable flame holes along the lid circumferential direction dispersed distribution, institute Middle ring stable flame hole is stated to be connected to the middle ring mixing chamber；Multiple middle ring stable flame holes are respectively positioned below the middle ring fire hole, and It is staggered one by one with the middle ring fire hole.

Further, the lid is in the cone cell of butt, and the opening of the lid is set to the flared end of the lid, and institute State the top that inner ring fire bed is located at the middle ring fire bed.

Further, the inner sidewall of the lid is communicated with separating tube along its circumferential direction, and junction is located at the inner ring fire bed Between the middle ring fire bed, the inner ring mixing chamber is formed inside the separating tube；The lateral wall of the separating tube with it is described Cricoid middle ring mixing chamber is formed between the inner sidewall of lid.

Further, outwardly protruded boss on the side wall of the lid, the lateral wall of the boss be equipped with it is described Guarantor's fire hole of inner ring mixing chamber connection.

Further, the lateral wall of the boss is equipped with fire tank, circumferential direction perforation of the fire tank along the lid Setting；The groove body of the fire tank is equipped with vent, and the vent is connected to the inner ring mixing chamber.

Another of the utility model is designed to provide a kind of burner, including distributor pedestal and above-mentioned central flame Lid, the central flame cap are covered on the distributor pedestal, the inner ring bottom of the inner ring mixing chamber and the distributor pedestal Seat connection, the middle ring mixing chamber are connected to the middle ring pedestal of the distributor pedestal.

The utility model central flame cap and burner have the beneficial effect that

Central flame cap and burner provided by the utility model, wherein central flame cap includes for accommodating air mixture Lid, inner ring fire bed and middle ring fire bed for fire to be escaped and be ignited out for covering intracorporal air mixture；Wherein, burner packet It includes for the distributor pedestal to lid portion inside conveying air mixture, distributor pedestal includes for mixed to the inner ring of lid portion inside Inner ring pedestal, the middle ring pedestal for being supplied to the middle ring mixing chamber of lid portion inside of gas chamber gas supply.

When initial, the inner ring pedestal of distributor pedestal is connected to by inner ring ejector pipe with external feeder, middle ring pedestal It is connected to by middle ring ejector pipe with external feeder；When using burner, outer combustion gas is mixed by inner ring ejector pipe and air Become air mixture after conjunction, air mixture enters in inner ring pedestal, and enters in the inner ring mixing chamber of lid in turn, air mixture It is escaped after through inner ring fire hole, and is ignited and emerges for flame, to being heated in the middle part of cookware on gas-cooker；Similar, outside Portion's combustion gas is mixed with air by middle ring ejector pipe as air mixture, and air mixture subsequently enters middle ring mixing chamber, and through middle ring Fire hole is emerged flame, also to heating in the middle part of cookware on gas-cooker.

Two layers of fire hole circumferentially distributed along lid is set in central flame cap, and inner ring fire hole and middle ring fire hole can be simultaneously to pots The medium position of tool carries out dual-heated, to improve burner to the heating effect of cookware medium position, reduces in the middle part of cookware The heated heat being heated with outer ring is poor, improves the heated uniformity of cookware, correspondinglys increase the effect that boils of burner.

In addition, the inner ring fire bed on central flame cap is connected to inner ring mixing chamber, middle ring fire bed with middle ring mixing chamber, inner ring is mixed Gas chamber and middle ring mixing chamber are relatively independent, can be independently controlled respectively, and user can select that inner ring is used only according to demand The small fire mode of fire bed can also select while use the moderate heat mode of inner ring fire bed and middle ring fire bed, increase the fire of burner Adjustable range is measured, the practicality is improved.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the three dimensional structure diagram of central flame cap provided by the embodiment of the utility model；

Fig. 2 is the overlooking structure diagram of central flame cap provided by the embodiment of the utility model；

Fig. 3 is the schematic cross-sectional view in the direction A-A in Fig. 2.

Icon: 1- lid；2- inner ring mixing chamber；3- middle ring mixing chamber；4- inner ring fire hole；5- middle ring fire hole；6- Inner ring stable flame hole；7- middle ring stable flame hole；8- separating tube；9- boss；91- protects fire hole；92- fire tank；93- vent.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

The present embodiment provides a kind of central flame caps, as shown in figures 1 and 3, including integrally formed lid 1, set in lid 1 There are mutually independent inner ring mixing chamber 2 and middle ring mixing chamber 3, the side wall of lid 1 is equipped with inner ring fire bed arranged up and down in Ring fire layer, inner ring fire bed include multiple inner ring fire holes 4 along the circumferential dispersed distribution of lid 1, inner ring fire hole 4 and inner ring mixing chamber 2 Connection；Middle ring fire bed includes multiple middle ring fire holes 5 along the circumferential dispersed distribution of lid 1, and middle ring fire hole 5 and middle ring mixing chamber 3 connect It is logical.

The present embodiment also provides a kind of burner, including distributor pedestal and above-mentioned central flame cap, central flame cap are covered on On distributor pedestal, inner ring mixing chamber 2 is connected to the inner ring pedestal of distributor pedestal, middle ring mixing chamber 3 and distributor pedestal The connection of middle ring pedestal.

Central flame cap and burner provided in this embodiment, wherein central flame cap includes the lid for accommodating air mixture Body 1, inner ring fire bed and middle ring fire bed for fire to be escaped and be ignited out for the air mixture in lid 1；Wherein, burner packet It includes for the distributor pedestal to 1 delivered inside air mixture of lid, distributor pedestal includes for the inner ring inside lid 1 Inner ring pedestal, the middle ring pedestal for being supplied to the middle ring mixing chamber 3 inside lid 1 of the gas supply of mixing chamber 2.

When initial, the inner ring pedestal of distributor pedestal is connected to by inner ring ejector pipe with external feeder, middle ring pedestal It is connected to by middle ring ejector pipe with external feeder；When using burner, outer combustion gas is mixed by inner ring ejector pipe and air Become air mixture after conjunction, air mixture enters in inner ring pedestal, and enters in the inner ring mixing chamber 2 of lid 1 in turn, mixing combustion Gas escapes after through inner ring fire hole 4, and is ignited and emerges for flame, to heating in the middle part of cookware on gas-cooker；Similar, Outer combustion gas is mixed with air by middle ring ejector pipe as air mixture, air mixture subsequently enters middle ring mixing chamber 3, and is passed through Ring fire hole 5 is emerged flame, also to heating in the middle part of cookware on gas-cooker.

Two layers of fire hole circumferentially distributed along lid 1 is set in central flame cap, and inner ring fire hole 4 and middle ring fire hole 5 can be simultaneously Dual-heated is carried out to the medium position of cookware, to improve burner to the heating effect of cookware medium position, reduces cookware The heated heat being heated with outer ring in middle part is poor, improves the heated uniformity of cookware, correspondinglys increase the effect that boils of burner.

In addition, the inner ring fire bed on central flame cap is connected to inner ring mixing chamber 2, middle ring fire bed with middle ring mixing chamber 3, inner ring Mixing chamber 2 and middle ring mixing chamber 3 are relatively independent, can be independently controlled respectively, and user can select to be used only according to demand The moderate heat mode of inner ring fire bed and middle ring fire bed can also be selected while be used to the small fire mode of inner ring fire bed, increase burner Fire amount adjustable range, improve the practicality.

In the present embodiment, the steady flame layer of inner ring can be circumferentially with along it as shown in figures 1 and 3, on the side wall of lid 1, it is interior The steady flame layer of ring and inner ring fire bed are arranged up and down, and the flame for internal ring fire layer carries out steady flame processing；Specifically, the steady flame layer of inner ring It may include multiple inner ring stable flame holes 6 along the circumferential dispersed distribution of lid 1, inner ring stable flame hole 6 is connected to inner ring mixing chamber 2；It is more A inner ring stable flame hole 6 is respectively positioned on 4 lower section of inner ring fire hole, and staggered one by one with inner ring fire hole 4.The steady flame layer of inner ring and inner ring are mixed Gas chamber 2 is connected to, and burner is in use, the air mixture in inner ring mixing chamber 2 is escaped through inner ring fire hole 4 and inner ring stable flame hole 6 simultaneously It burns out, the flame that the flame of inner ring stable flame hole 6 is capable of internal ring fire hole 4 generates grip, so that improving inner ring fire hole 4 generates fire The stability of flame reduces jump fire at inner ring fire hole 4, splashes the occurrence of fire；In addition, the fire of inner ring stable flame hole 6 and inner ring fire hole 4 Flame is along the circumferential annular in shape of lid 1, and multiple inner ring stable flame holes 6 and multiple inner ring fire holes 4 are staggered one by one, then the steady flame of inner ring The flame that hole 6 generates can play steady flame effect to the flame for more having inner ring fire hole 4 to generate, so that it is guaranteed that the steady flame layer of inner ring is internal The overall uniformity of the steady flame of ring fire layer.

Specifically, burner is in use, interior ring fire as shown in Figure 1, the steady flame layer of inner ring can be located at the lower section of inner ring fire bed The flame of flame layer is emerged upwards is capable of the root progress the pre-heat treatment in internal ring fire hole 4, to improve the temperature of 4 outlet of inner ring fire hole Degree improves the full combustion of air mixture at inner ring fire hole 4, improves the efficiency of combustion of inner ring fire hole 4, correspondinglys increase burner pair The heating efficiency of cookware.

Wherein, the steady flame layer of inner ring, can also be on 1 lateral wall of lid along its week in addition to the form of above-mentioned inner ring stable flame hole 6 To annular groove is equipped with, 1 inner sidewall of lid is equipped with intercommunicating pore, and annular groove is connected to by intercommunicating pore with inner ring mixing chamber 2；Burner makes Used time, the steady fireworks flame for annular of emerging at annular groove carry out steady flame processing with the flame that internal ring fire hole 4 generates.

Similar, in the present embodiment, as shown in Figure 1, the steady flame layer of middle ring, middle ring can also be equipped on the side wall of lid 1 Steady flame layer and middle ring fire bed are arranged up and down, and the flame for centering ring fire layer carries out steady flame processing；Specifically, the steady flame layer packet of middle ring Multiple middle ring stable flame holes 7 along the circumferential dispersed distribution of lid 1 are included, middle ring stable flame hole 7 is connected to middle ring mixing chamber 3；Multiple middle rings Stable flame hole 7 is respectively positioned on 5 lower section of middle ring fire hole, and staggered one by one with middle ring fire hole 5.The middle ring stable flame hole 7 of the steady flame layer of middle ring The steady flame principle in centering ring fire hole 5 is identical as the steady flame principle in the internal ring fire hole 4 of the steady flame layer of above-mentioned inner ring, and which is not described herein again.

Specifically, the steady flame layer of middle ring can also be located at the lower section of middle ring fire bed.

In the present embodiment, as shown in figures 1 and 3, lid 1 can be in the cone cell of butt, and the opening of lid 1 is set to lid 1 Flared end, and inner ring fire bed is located at the top of middle ring fire bed.The lateral wall of lid 1 is the conical surface, the inner ring fire hole 4 of inner ring fire bed It is projected in the horizontal plane with the middle ring fire hole 5 of middle ring fire bed, the projection of inner ring fire hole 4 is located in the ring that middle ring fire hole 5 projects, combustion When burner is burnt, the flame region that inner ring fire hole 4 generates is located at middle ring fire hole 5 and generates in the ring of flame region；On the one hand, inner ring Fire hole 4 and middle ring fire hole 5 can heat the different zones of cookware medium position, further increase central flame cap to cookware The uniformity of heating；On the other hand, inner ring fire hole 4 is different with the flame region that middle ring fire hole 5 generates, and can also reduce burning When, interference is generated between the flame that inner ring fire hole 4 generates and the flame of the generation of middle ring fire hole 5, and influence central flame cap and generate fire The stability of flame.

Specifically, in the present embodiment, as shown in figure 3, the inner sidewall of lid 1 can be communicated with separating tube 8 along its circumferential direction, even Place is met between inner ring fire bed and middle ring fire bed, forms inner ring mixing chamber 2 inside separating tube 8；The lateral wall and lid of separating tube 8 Cricoid middle ring mixing chamber 3 is formed between the inner sidewall of body 1.It here is that inner ring mixing chamber 2 and the mixed gas of middle ring are formed inside lid 1 A kind of concrete form of room 3, correspondingly, the inner ring base sheath of distributor pedestal is set in the ring of middle ring pedestal, central flame cap lid When on distributor pedestal, the bottom end of separating tube 8 is connect with the side wall top of inner ring pedestal, while the side wall low side of lid 1 It is connect with the top of middle ring base outside wall, realizes inner ring mixing chamber 2 and inner ring pedestal, middle ring mixing chamber 3 and middle ring pedestal It is respectively communicated with.It is made specifically, separating tube 8 can be integrally formed with lid 1.

In the present embodiment, as shown in Figure 1-Figure 3, boss 9 can have been outwardly protruded on the side wall of lid 1, boss 9 it is outer Side wall is equipped with the guarantor's fire hole 91 being connected to inner ring mixing chamber 2.Thermocouple in burner is set to central flame cap and outer ring fire Position between lid, and it is corresponding with the fire outlet of fire hole 91 is protected, burner is in use, protect the fire that fire hole 91 is emerged on boss 9 Flame face thermocouple, can heat thermocouple, and the temperature of thermocouple induction to flame accordingly controls flame-out protection device It is in the open state, to ensure that combustion gas to being continually fed into inside lid 1, realizes the continuous burning of burner.Boss 9 is set It sets, compares the flame that the inner ring fire hole 4 on 1 lateral wall of lid is emerged, the spacing protected between fire hole 91 and thermocouple can be reduced (thickness that the spacing of reduction is equal to boss 9), when the combustion gas air pressure of external feeder is lower or user is boiled using small fire, When inner ring fire hole 4 is generated compared with flammule, the flame that fire hole 91 is protected on boss 9 can still be heated thermocouple, so that it is guaranteed that hot The correct induction of internal 4 working condition of ring fire hole of galvanic couple, the corresponding correct control realized to flame-out protection device.Specifically, convex Platform 9 can be integrally formed with lid 1 and be made.

Specifically, multiple fire holes 91 of protecting are in the outer of boss 9 as shown in Figure 1, can be equipped with multiple guarantor's fire holes 91 on boss 9 Along the circumferential dispersion arrangement of 1 lateral wall of lid on side wall；In addition, the aperture for protecting fire hole 91 can be greater than the aperture of inner ring fire hole 4, To increase the gas output protected at fire hole 91, the firing amount protected at fire hole 91 is increased accordingly, further ensures that and protects flame at fire hole 91 Heating to thermocouple, it is ensured that the normal work of thermocouple.

Specifically, guarantor's fire principle of thermocouple are as follows: when combustion gas is burnt in the burner, the induction endpoint of thermocouple is protecting fire Electromotive force is generated under the heating of 91 flame of hole, electromotive force is added on the coil of security solenoid valve by conducting wire, and the suction of generation will The armature of security solenoid valve is sucked, so that combustion gas be made to continue to flow to ejector pipe through air valve, maintains burning, reaches the fiery purpose of guarantor.And When flame surprisingly extinguishes, the temperature that thermocouple induction arrives is reduced, and the electromotive force of generation disappears, and the suction decrease of solenoid valve makes armature It is released under the action of the spring, air valve is closed, and is no longer supplied.

In the present embodiment, as shown in figures 1 and 3, fire tank 92, fire tank 92 can be equipped on the lateral wall of boss 9 Along the circumferential perforation setting of lid 1；The groove body of fire tank 92 is equipped with vent 93, and vent 93 is connected to inner ring mixing chamber 2.Point Fiery needle can be located between the middle ring fire cover and external ring fire cover of distributor pedestal, and when using burner, ignition electrode is to guarantor's fire hole 91 Or the air mixture at inner ring fire hole 4 is lighted a fire, and is illustrated for protecting at fire hole 91 and lighting a fire: protecting generation at fire hole 91 Flame can quickly light the air mixture at vent 93, the flame generated at vent 93 along fire tank 92 length side It to sprawling, is spread to from inner ring fire hole 4 from the both ends open of fire tank 92, the air mixture at inner ring fire hole 4 is ignited, realized The rapid-ignition of central flame cap.Specifically, as shown in Figure 1, the vent 93 in fire tank 92 can be multiple, multiple vents 93 along fire tank 92 length direction, i.e. the circumferential dispersion arrangement of lid 1.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features It is equivalently replaced；And these are modified or replaceed, the utility model embodiment that it does not separate the essence of the corresponding technical solution The range of technical solution.

Claims (10)

1. a kind of central flame cap, which is characterized in that be equipped with including integrally formed lid (1), in the lid (1) mutually indepedent Inner ring mixing chamber (2) and middle ring mixing chamber (3), the side wall of the lid (1) be equipped with inner ring fire bed arranged up and down and in Ring fire layer, the inner ring fire bed include multiple inner ring fire holes (4) along the circumferential dispersed distribution of the lid (1), the interior ring fire Hole (4) is connected to the inner ring mixing chamber (2)；The middle ring fire bed includes multiple along the circumferential dispersed distribution of the lid (1) Middle ring fire hole (5), the middle ring fire hole (5) are connected to the middle ring mixing chamber (3).

2. central flame cap according to claim 1, which is characterized in that be circumferentially on the side wall of the lid (1) along it The steady flame layer of inner ring, the steady flame layer of inner ring and the inner ring fire bed are arranged up and down, are carried out for the flame to the inner ring fire bed Steady flame processing.

3. central flame cap according to claim 2, which is characterized in that the steady flame layer of inner ring includes multiple along the lid (1) the inner ring stable flame hole (6) of circumferential dispersed distribution, the inner ring stable flame hole (6) are connected to the inner ring mixing chamber (2)；It is multiple The inner ring stable flame hole (6) is respectively positioned below the inner ring fire hole (4), and staggered one by one with the inner ring fire hole (4).

4. central flame cap according to claim 1, which is characterized in that the side wall of the lid (1) is equipped with the steady flame of middle ring Layer, the steady flame layer of middle ring and the middle ring fire bed are arranged up and down, carry out steady flame processing for the flame to the middle ring fire bed.

5. central flame cap according to claim 4, which is characterized in that the steady flame layer of middle ring includes multiple along the lid (1) the middle ring stable flame hole (7) of circumferential dispersed distribution, the middle ring stable flame hole (7) are connected to the middle ring mixing chamber (3)；It is multiple The middle ring stable flame hole (7) is respectively positioned below the middle ring fire hole (5), and staggered one by one with the middle ring fire hole (5).

6. central flame cap according to any one of claims 1-5, which is characterized in that the lid (1) is in the cone of butt Shape, the opening of the lid (1) is set to the flared end of the lid (1), and the inner ring fire bed is located at the middle ring fire bed Top.

7. central flame cap according to claim 6, which is characterized in that the inner sidewall of the lid (1) is circumferentially connected to along it Have separating tube (8), junction forms institute between the inner ring fire bed and the middle ring fire bed inside the separating tube (8) State inner ring mixing chamber (2)；Cricoid middle ring is formed between the lateral wall of the separating tube (8) and the inner sidewall of the lid (1) Mixing chamber (3).

8. central flame cap according to claim 6, which is characterized in that outwardly protruded on the side wall of the lid (1) convex Platform (9), the lateral wall of the boss (9) are equipped with the guarantor's fire hole (91) being connected to the inner ring mixing chamber (2).

9. central flame cap according to claim 8, which is characterized in that the lateral wall of the boss (9) is equipped with fire tank (92), circumferential perforation setting of the fire tank (92) along the lid (1)；The groove body of the fire tank (92) is equipped with vent (93), the vent (93) is connected to the inner ring mixing chamber (2).

10. a kind of burner, which is characterized in that including distributor pedestal and central flame of any of claims 1-9 Lid, the central flame cap are covered on the distributor pedestal, the inner ring of the inner ring mixing chamber (2) and the distributor pedestal Pedestal connection, the middle ring mixing chamber (3) are connected to the middle ring pedestal of the distributor pedestal.