CN208735628U - A kind of burner for kitchen range - Google Patents

Abstract

The utility model relates to a kind of burners for kitchen range, including pedestal, the fire cover of connection on the base, the position of neighbouring fire cover periphery wall is provided with ignition electrode, fire hole is offered on the external annulus of fire cover, it is characterized by: the external annulus of fire cover is outward extended with the boss blocked above fire hole and ignition electrode along the radial direction of the fire cover, the bottom peripheral edge of boss extends downwardly the flange collar that rain visor is formed with boss bottom surface, at least partly periphery at the top of boss has upwardly extended chimb, the chimb and boss, which enclose, to be set to form liquid holding groove, compared with prior art, utility model has the advantages that the external annulus of fire cover is outward extended with the boss blocked above fire hole and ignition electrode along the radial direction of fire cover, on the one hand its bottom peripheral edge has extended downwardly flange collar to the boss, the flange collar enclosed jointly with boss bottom surface set to be formed it is anti- Water eaves, another aspect boss top have upwardly extended chimb, have enclosed jointly at the top of the chimb and boss and sets to form liquid holding groove, discharge is effectively prevent to enter fire hole.

Description

A kind of burner for kitchen range

Technical field

The utility model relates to gas-cooker fields, and in particular to a kind of burner for gas cooker.

Background technique

Common Domestic combustor generally has outer fire cover and inner fire cover, together with ignition electrode, thermocouple (or same function Ion inductive needle) etc. elements realize and generate flame, maintain the functions such as flame.Existing burner outer flame cover structure generally comprises Outer fire cover ontology with multiple main fiery channels, outer fire cover ontology lower end surface have mixing chamber, and the mixing chamber and main fiery channel connect Logical, main fire channel forms main fire hole in outer fire cover ontology outer end face.This kind of patent document can be with referenced patent number A kind of Chinese utility model patent " conic-fire cover for gas-range burner " (Authorization Notice No. of ZL200520014838.2 It CN2842216Y), can be a kind of Chinese utility model patent " burner fire of ZL201120246965.0 with referenced patent number Lid " (Authorization Notice No. CN202149492U).The main fire hole combustion system of this list disclosed above deposits flame appearance after combustion Easily bounce, the unstable deficiency in combustion zone.Many outer fire cover structures with flame stabilization function are disclosed in the prior art, such as specially (Authorization Notice No. is for a kind of sharp number Chinese utility model patent for being ZL200920112857.7 " outer-ring fire cover for gas burner " CN201377835Y), offer stable flame hole in the patent on the outside of the outer fire cover on facade, stable flame hole be located at below outer ring fire hole and It is alternately arranged with outer ring fire hole, stable flame hole inner end is connected to the blast tube of fire cover.Since the setting of stable flame hole is so that burning effect Rate greatly improves, it is possible to reduce the discharge of indoor carbon monoxide.Similarly designing can be with referenced patent number (Authorization Notice No. is the Chinese utility model patent " ring-shaped fire cover of burner for gas stove " of ZL200920195299.5 ) and the Chinese utility model patent of Patent No. ZL200820031768.5 " stove burner fire cover " (Granted publication CN201513893U Number be CN201155762C).Although improved structure achieves good technical effect, there is also deficiencies: firstly, steady flame Effect does not reach optimum state, can also further be promoted；Secondly, overflowing liquid is easily accessible main fire hole or stable flame hole to stifled It fills in main fiery channel or steady flame channel, and allows for gas-cooker when the fire hole that block correspond near ignition electrode and misfire, when blocking The fire hole corresponding thermocouples ion inductive needle of function (or same) nearby flame cannot be maintained by allowing for gas-cooker, in addition, passing The ignition process of system gas-cooker, is to be lighted the combustion gas of ejection by ignition electrode electrion, i.e., is generated using igniting needle section Electric spark, the combustion gas that point of ignition fire hole sprays, and then the combustion gas in fire cover is lighted, and igniting is completed, although igniting is fast, Since the flow velocity that the corresponding combustion gas of fire hole sprays is too fast, it will lead to from flame or ignition success rate caused to decline, to sum up institute It states, needs to be further improved existing burner fire lid.

Summary of the invention

Technical problem to be solved in the utility model be for above-mentioned state of the art and providing a kind of can effectively prevent The only burner for kitchen range that discharge enters fire hole, improves ignition effectiveness.

Technical solution adopted by the utility model to solve the above technical problems is as follows: this is used for the burner of kitchen range, including Pedestal, connection fire cover on the base are provided with ignition electrode in the position of the neighbouring fire cover periphery wall, the fire cover it is outer Fire hole corresponding with the ignition electrode is offered on ring wall, it is characterised in that: the external annulus of the fire cover is along the fire cover Radial direction is outward extended with the boss blocked above fire hole and ignition electrode, and the bottom peripheral edge of the boss has extended downwardly Flange collar, the flange collar and the boss bottom surface are enclosed jointly to be set to form rain visor, and at least partly periphery at the top of the boss is upward It is extended with chimb, encloses the liquid holding groove for setting and being formed for containing discharge jointly at the top of the chimb and the boss.

In order to reinforce the effect that boss blocks discharge, the chimb is outward extended with skirt, the skirt include with it is described The base portion of boss integrally connected and the freedom portion extended from the base portion along the fire cover external annulus, the base portion is along the fire cover diameter Radial direction outwardly extending length of the boss along the fire cover is shorter in length than to direction is outwardly extending.

In order to prevent ignition electrode and thermocouple hypertelorism and cause because pass fire it is bad due to cause to stop working, set on the pedestal It is equipped with the thermocouple being arranged side by side with the ignition electrode, and the external annulus of the fire cover opens up below the skirt base portion There is guarantor's fire hole corresponding with thermocouple.

In order to form a pressure stabilizing area at fire hole, it is ensured that the current stabilization of ignition zone, fire hole flame is steady, mentions High ignition success rate, the fire cover are cyclic annular fire cover, include cricoid ontology, the annular top wall of the ontology and from the ring The inside edge of shape roof, outer ledge be vertical or the internal ring wall and the external annulus that extend obliquely downward between formed it is mixed Air cavity, has the surge chamber that is relatively isolated in the mixing chamber, which is provided on a wall at least in and institute The air inlet for the mixing chamber configured in fluid communication stated, and the external annulus offers in the position of the corresponding surge chamber and delays with this Rush the fire hole of room configured in fluid communication.

The side wall of surge chamber can be cylindrical shape, be also possible to box shape, be relatively isolated as long as can constitute with mixed air cavity , the surge chamber includes the bottom wall of roof, the side wall extended downwardly from roof and each side wall of connection, on the side wall It is provided with the air inlet.

The roof of surge chamber can for be with the annular top wall of fire cover it is mutually indepedent, can also be with the roof of the surge chamber For a part in the annular top wall of the cyclic annular fire cover.

Wherein surge chamber is unfolded to illustrate by taking box shape as an example, and is divided into two kinds of set-up modes:

First way:

The fire cover outer ring wall part for being provided with fire hole directly as surge chamber lateral wall, the surge chamber There are three side walls: the first side wall opposite with the lateral wall, and second sidewall, the third of connection lateral wall and the first side wall Side wall.

The second way:

There are four the side walls of the surge chamber: adjacent to the fire hole and spaced with external annulus tool where fire hole 4th side wall, the first side wall opposite with the 4th side wall, and connect external annulus and the first side wall and extend to external annulus Second sidewall, third side wall, wherein being provided with the first fire output hole on the 4th side wall.

In order to realize that combustion gas enters surge chamber, one side wall in office or bottom wall is can be set in air inlet, in order to more quickly Ground outlet, the air inlet are provided on the first side wall.More preferably, air inlet and fire hole or air inlet and the One fire output hole, fire hole are on same central axis.

Preferably, there is interval between the first side wall and the internal ring wall.

Compared with adjacent parts, the position of the fire hole is provided on the fire cover external annulus along the radial direction side of the fire cover It is inwardly concaved to part.

Screw exposure in installation process in order to prevent, increases the aesthetics of burner, the pedestal and cyclic annular fire cover it Between be additionally provided with case ring, the fire cover is stacked on the case ring, and first through hole and second logical is offered on the case ring Hole, the ignition electrode pass through the first through hole and stretch out in the case ring upwards, and it is logical that the thermocouple passes through described second Hole simultaneously stretches out in the case ring upwards, and a part of the end face of the case ring then constitutes the bottom wall of the surge chamber.

Further, the external annulus of the fire cover corresponds to the lower edge of the fire hole and the top end of the case ring There is the gap for being connected to the mixed air cavity and the pressure stabilizing cavity, which constitutes ignition slot between face.The ignition slot is together with igniting Auxiliary ignition holes igniting is played the role of in hole, on the other hand, ignition slot be arranged in fire hole it is lower can enhance it is anti-blocking general Rate, while the ignition slot also acts as the effect ignited.

It is acted in order to further improve the steady flame of fire cover, the lower end surface of the annular body external annulus surrounds circumferencial direction Radial direction forms multiple main fiery grooves, and spacer block is then formed between adjacent main fiery groove, the spacer block form from inside to outside, And from lower inside steady flame groove, which has flared section close to outside.

In order to enable protecting fire hole has double protection, on the one hand have and protect fire action, on the other hand there is steady flame to make With being provided with through-hole on the diametrically opposed side wall of the steady flame groove, wherein the through-hole on lateral wall is guarantor fire Hole.Simultaneously as protecting fire hole runs through steady flame groove, there is a main fiery groove two-by-two between steady flame groove, can ensure that thermocouple with The heating surface area of flare contact is not excessive only small, and thermocouple is not only heated sufficient, to generate enough thermo-electromotive forcves, also not Can be too big because being contacted with the flare fiery out for protecting fire hole, burn out thermocouple.

Further, the main fiery groove includes circumferentially spaced the first main fiery slot and the second main fiery slot, institute State the groove depth of the groove depth fiery slot main less than second of the first main fiery slot, the described first main fiery slot and the second main fiery slot and institute It states case ring and cooperatively forms the first main fire hole and the second main fire hole, it is logical that the steady flame groove and the case ring cooperatively form steady flame Road.After adopting the above structure, fire cover, which is equivalent between two long fire holes, is equipped with a short fire hole, so that the secondary sky of long fire hole Gas supplements region can be much larger, and then is conducive to the auxiliary air supplement of long fire hole, and it is abundant can to advantageously promote outer ring combustion gas Burning.

Compared with the prior art, the advantages of the utility model are: the external annulus of fire cover is outside along the radial direction of fire cover It is extended with the boss blocked above fire hole and ignition electrode, which has the function of dual-use material, on the one hand its bottom week Edge has extended downwardly flange collar, and the flange collar and boss bottom surface enclose jointly and set to form rain visor, at least portion at the top of another aspect boss Divide periphery to upwardly extend chimb, encloses the liquid holding groove for setting and being formed for containing discharge jointly at the top of the chimb and boss, boss Structure design can effectively prevent discharge and enter fire hole, blocks fire hole, effectively improves ignition effectiveness.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of burner in the utility model embodiment；

Fig. 2 is the cross-sectional view of Fig. 1；

Fig. 3 is the enlarged structure schematic diagram in Fig. 2 at A；

Fig. 4 is the structural schematic diagram of fire cover in the utility model embodiment；

Fig. 5 is the structural schematic diagram of mono- angle of Fig. 4；

Fig. 6 is the structural schematic diagram of another angle of Fig. 4；

Fig. 7 is the structural schematic diagram (omitting the 4th side wall) of the utility model embodiment 2；

Fig. 8 is the cross-sectional view of Fig. 7；

Fig. 9 is the structural schematic diagram of the utility model embodiment 3.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

Embodiment 1

As shown in figs. 1 to 6, the burner for kitchen range in the present embodiment includes pedestal 1, is connected on the pedestal 1 Fire cover is provided with ignition electrode 3 in the position of neighbouring fire cover periphery wall, offers on fire cover external annulus 22 corresponding with ignition electrode 3 Fire hole 31, fire cover external annulus 22 is outward extended with along the radial direction of fire cover to be blocked above fire hole 31 and ignition electrode 3 Boss 4, the bottom peripheral edge of boss 4 have extended downwardly flange collar 41, and the flange collar 41 and 4 bottom surface of boss enclose jointly and set to form waterproof Eaves, and at least partly periphery at 4 top of boss has upwardly extended chimb 42, which encloses to set to be formed jointly with 4 top of boss For containing the liquid holding groove 50 of discharge.Wherein, chimb 42 is outward extended with skirt 43, and skirt 43 includes and 4 integrally connected of boss Base portion 431 and the freedom portion 432 that extends from the base portion 431 along fire cover external annulus 22, base portion 431 it is outside along fire cover radial direction What is extended is shorter in length than radial direction outwardly extending length of the boss 4 along fire cover.It is provided on pedestal 1 with ignition electrode 3 side by side The thermocouple 5 of setting, and fire cover external annulus 22 offers guarantor's fire corresponding with thermocouple 5 in the lower section of 43 base portion 431 of skirt Hole 51.Base portion 431 is shorter in length than radial direction outwardly extending length of the boss 4 along fire cover along fire cover radial direction is outwardly extending The design of degree both can ensure that guarantor's fire performance of thermocouple 5 will not also be excessive while suitably can shelter from small discharge in this way Ground shelters from big discharge, loses guarantor's fire performance of thermocouple 5, wherein thermocouple 5 can be placed in skirt 43 lower section or can not also The lower section of skirt 43 is placed in, as long as skirt 43 can block on protecting fire hole 51, it is ensured that protect fire hole 51 can go out it is fiery, do not blocked by discharge ?.

The fire cover of the present embodiment is cyclic annular fire cover comprising has an annular body 2, the annular top wall 20 of ontology 2 and from the ring The inside edge of shape roof 20, outer ledge it is vertical or extend obliquely downward internal ring wall 21, formed between fire cover external annulus 22 Mixing chamber 23, has the surge chamber 7 that is relatively isolated in mixing chamber 23, the surge chamber 7 be provided on a wall at least in The air inlet 721 of 23 configured in fluid communication of mixing chamber, and fire cover external annulus 22 is offered and is somebody's turn to do in the position of the corresponding surge chamber 7 The fire hole 31 of 7 configured in fluid communication of surge chamber.Wherein side wall includes being provided with 13 part of external annulus of fire hole 31 directly as slow Rush the lateral wall of room 7, there are three the side walls of surge chamber 7: the first side wall 72 opposite with lateral wall, and connection lateral wall with The second sidewall 71 of the first side wall 72, third side wall 73, in order to realize that combustion gas enters surge chamber, air inlet 721 be can be set On any side wall or bottom wall, in order to which relatively rapid outlet, air inlet 721 are provided on the first side wall 72, more preferably, into Stomata 721 and fire hole 31 are on same central axis, between the first side wall 72 and internal ring wall 21 where air inlet 721 With interval, the design at the interval can preferably make the combustion gas into mixing chamber 23 by the air inlet 721 of the first side wall 72 into Enter surge chamber 7.On the one hand the design of the surge chamber 7 can prevent the outlet excessive velocities of fire hole 31, cause from flame；It simultaneously can also Corresponding 13 thickness of external annulus of fire hole 31 is done it is thin so that the depth of fire hole 31 can also correspondingly reduce so that Fire hole 31 is not easy to be blocked by discharge.

In addition, the screw exposure in installation process in order to prevent, increases the aesthetics of burner, pedestal 1 and cyclic annular fire cover Between be additionally provided with case ring 8, fire cover is stacked on the case ring 8, and first through hole 81 and the second through-hole are offered on case ring 8 82, ignition electrode 3 passes through first through hole 81 and stretches out in case ring 8 upwards, and thermocouple 5 passes through the second through-hole 82 and stretches out upwards In case ring 8, a part of the end face of case ring 8 then constitutes the bottom wall 83 of surge chamber 7.Ignition electrode 3 is set side by side with thermocouple 5 It sets, ignition electrode 3 and 5 hypertelorism of thermocouple can be prevented and cause to cause to stop working because biography fire is bad, and the pointed cone of 4 lower section of boss The head of face ignition electrode 3 generates electrion, ignites from fire cover ontology 2 upon initiation at the head of ignition electrode 3 and pointed cone Fire hole 31 in the combustion gas that sprays, and then whole fire cover of igniting completes the igniting of burner.The corresponding igniting of fire cover external annulus 22 There is the gap for being connected to mixing chamber 23 and cushion chamber, the gap structure between the lower edge in hole 31 and the top end surface of case ring 8 At ignition slot 9.And the fine crack shape of ignition slot 9 then accelerates speed of ignition, which has double action, on the one hand the point Fiery slot 9 plays the role of the igniting of auxiliary ignition holes 31 together with fire hole 31, and on the other hand, ignition slot 9 is arranged in fire hole 31 It is lower can enhance anti-blocking probability, while the ignition slot 9 also acts as the effect ignited.

Acted in order to further improve the steady flame of fire cover, the lower end surface of fire cover external annulus 22 around circumferencial direction it is radial at Type has multiple main fiery grooves 24, and then forms spacer block 10 between adjacent main fiery groove 24, and spacer block 10 forms from inside to outside, simultaneously Bottom-up recessed steady flame groove 101, the steady flame groove 101 have flared section 102 close to outside.The flared section 102 can drop The flow velocity of low burn gas makes to flow out steady flame groove 101 and is not easy in burning from flame with combustion gas, while the steady flame groove 101 generates Flame can effectively hold the main fire of the main fiery groove 24 in two sides, heat main fire hole combustion gas root, entire burner made to burn When flame stabilization.In order to enable protecting fire hole 51 has double protection, on the one hand have and protect fire action, on the other hand has steady Flame acts on, and is provided with through-hole on the diametrically opposed side wall of steady flame groove 101, and wherein the through-hole on lateral wall is to protect fire hole 51.Simultaneously as protecting the set-up mode of fire hole 51, so that having a main fiery groove 24 between steady flame groove 101 two-by-two, can ensure that The heating surface area that thermocouple 5 is contacted with flare is not excessive only small, and thermocouple 5 is not only heated sufficient, to generate enough heat Potential, will not with protect going out fiery flare and contacting too big for fire hole 51, be easy to burn out thermocouple 5.

Finally, main fire groove 24 includes the circumferentially spaced first main fiery slot 241 and the second main fiery slot 242, the The groove depth of the groove depth fiery slot 242 main less than second of one main fiery slot 241, the first main fiery slot 241 and the second main fiery slot 242 The first main fire hole and the second main fire hole are cooperatively formed with case ring 8, steady flame groove 101 cooperatively forms steady flame channel with case ring 8, After adopting the above structure, fire cover, which is equivalent between two long fire holes, is equipped with a short fire hole, so that the auxiliary air of long fire hole Supplementing region can be much larger, and then is conducive to the auxiliary air supplement of long fire hole, can advantageously promote outer ring combustion gas and sufficiently fire It burns.

Embodiment 2

It is essentially identical with the structure of embodiment 1, only difference is that: there are four the side walls of surge chamber 7: neighbouring fire hole 31 and have spaced 4th side wall 74 with 31 place external annulus 13 of fire hole, the first side wall 72 ' opposite with the 4th side wall 74, And connect external annulus 13 and 72 ' of the first side wall and extend to 71 ' of second sidewall of external annulus 13,73 ' of third side wall, wherein the The first fire output hole 741 is provided on four side walls 74, air inlet 721 is provided on 72 ' of the first side wall, more preferably, air inlet 721 and One fire output hole 741, fire hole 31 are on same central axis, 72 ' of the first side wall and internal ring wall 21 where air inlet 721 it Between there is interval, the design at the interval can preferably make the combustion gas into mixing chamber 23 pass through the air inlet of 72 ' of the first side wall 721 enter surge chambers 7, and the setting of the 4th side wall 74 can further increase combustion gas outflow fire hole 31 resistance, as Fig. 7 with Shown in 8.

Embodiment 3

It is essentially identical with the structure of embodiment 2, only difference is that: air inlet 721 is provided on 71 ' of second sidewall, As shown in Figure 9.

Claims (16)

1. a kind of burner for kitchen range, including pedestal (1), the fire cover being connected on the pedestal (1), the pedestal (1) exists The position of the neighbouring fire cover external annulus (22) is provided with ignition electrode (3), offered on the fire cover external annulus (22) with it is described The corresponding fire hole (31) of ignition electrode (3), it is characterised in that: the fire cover external annulus (22) along the fire cover radial direction to It is extended with the boss (4) blocked above fire hole (31) and ignition electrode (3) outside, the bottom peripheral edge of the boss (4) is to downward Stretching has flange collar (41), and the flange collar (41) and the boss (4) bottom surface enclose jointly and set to form rain visor, and at the top of the boss (4) At least partly periphery upwardly extended chimb (42), enclose to set to be formed jointly at the top of the chimb (42) and the boss (4) and be used for Contain the liquid holding groove (50) of discharge.

2. the burner according to claim 1 for kitchen range, it is characterised in that: the chimb (42) is outward extended with skirt Side (43), the skirt (43) include with the base portion (431) of the boss (4) integrally connected and from the base portion (431) along described The freedom portion (432) that fire cover external annulus (22) extends, the base portion (431) is along the outwardly extending length of fire cover radial direction Radial direction outwardly extending length of the shorter than described boss (4) along the fire cover.

3. the burner according to claim 2 for kitchen range, it is characterised in that: be provided on the pedestal (1) and institute State ignition electrode (3) thermocouple (5) arranged side by side, and the fire cover external annulus (22) skirt Yu Suoshu (43) base portion (431) Lower section offer guarantor's fire hole (51) corresponding with thermocouple (5).

4. the burner according to claim 3 for kitchen range, it is characterised in that: the fire cover is cyclic annular fire cover, including Have cricoid ontology (2), the annular top wall (20) of the ontology (2) and the inside edge from the annular top wall (20), outer side edges Edge is vertical or the internal ring wall (21) and the fire cover external annulus (22) that extend obliquely downward between form mixing chamber (23), in institute There is the surge chamber (7) being relatively isolated, which is provided on a wall at least in and institute in the mixing chamber (23) stated The air inlet (721) of mixing chamber (23) configured in fluid communication stated, and the fire cover external annulus (22) is in the corresponding surge chamber (7) position offers the fire hole (31) with the surge chamber (7) configured in fluid communication.

5. the burner according to claim 4 for kitchen range, it is characterised in that: the surge chamber (7) include roof, The bottom wall of the side wall that extends downwardly from roof and each side wall of connection is provided with the air inlet (721) on the side wall.

6. the burner according to claim 5 for kitchen range, it is characterised in that: the roof of the surge chamber (7) is institute State a part in the annular top wall (20) of cyclic annular fire cover.

7. the burner according to claim 4 for kitchen range, it is characterised in that: the fire for being provided with fire hole (31) Lid external annulus (22) is partially directly as the lateral wall of surge chamber (7), and there are three the side walls of the surge chamber (7): with it is described The opposite the first side wall (72 of lateral wall；72 '), and connection lateral wall and the first side wall (72；72 ') second sidewall (71； 71 '), third side wall (73；73 ').

8. the burner according to claim 4 for kitchen range, it is characterised in that: the side wall of the surge chamber has four It is a: neighbouring the fire hole (31) and to have spaced 4th side wall (74) with external annulus (13) where fire hole (31), with institute State the opposite the first side wall (72 of the 4th side wall (74)；72 '), and connection external annulus (13) and the first side wall (72；72 ') and prolong Extend to the second sidewall (71 of external annulus (13)；71 '), third side wall (73；73 '), wherein being provided with first on the 4th side wall (74) Fire output hole (741).

9. the burner according to claim 7 or 8 for kitchen range, it is characterised in that: the air inlet (721) opens up On the first side wall (72,72 ').

10. the burner according to claim 9 for kitchen range, it is characterised in that: the first side wall (72,72 ') There is interval between the internal ring wall (21).

11. the burner according to claim 4 for kitchen range, it is characterised in that: compared with adjacent parts, the fire cover The position that the fire hole (31) is provided on external annulus (22) is locally inwardly concaved along the radial direction of the fire cover.

12. the burner according to claim 4 for kitchen range, it is characterised in that: the pedestal (1) and cyclic annular fire cover it Between be additionally provided with case ring (8), the fire cover is stacked on the case ring (8), offers first through hole on the case ring (8) (81) first through hole (81) are passed through and stretch out in the case ring upwards with the second through-hole (82), the ignition electrode (3) (8), the thermocouple (5) passes through second through-hole (82) and stretches out in upwards the case ring (8), the case ring (8) A part of end face then constitute the bottom walls (83) of the surge chamber (7).

13. the burner according to claim 12 for kitchen range, it is characterised in that: the fire cover external annulus (22) is corresponding It is formed between the lower edge of the fire hole (31) and the top end surface of the case ring (8) and is connected with the surge chamber phase fluid Logical gap, the gap constitute ignition slot (9).

14. the burner according to claim 12 for kitchen range, it is characterised in that: under the fire cover external annulus (22) End face radially forms multiple main fiery grooves (24) around circumferencial direction, and then forms spacer block between adjacent main fiery groove (24) (10), the spacer block (10) forms from inside to outside and from lower inside steady flame groove (101), and the steady flame groove (101) is close Outside has flared section (102).

15. the burner according to claim 14 for kitchen range, it is characterised in that: the steady flame groove (101) is in diameter It is provided with through-hole on opposite side wall upwards, wherein the through-hole on lateral wall is guarantor's fire hole (51).

16. the burner according to claim 14 for kitchen range, it is characterised in that: the main fiery groove (24) includes The main fiery slot (241) of circumferentially spaced first and the second main fiery slot (242), the fluting of the described first main fiery slot (241) are deep Spend the groove depth of fiery slot (242) main less than second, the described first main fiery slot (241) and the second main fiery slot (242) and the dress Decorative circle (8) cooperatively forms the first main fire hole and the second main fire hole, and the steady flame groove (101) and the case ring (8) cooperate shape The channel Cheng Wenyan.