CN208804671U - A kind of burner for kitchen range - Google Patents

Abstract

The utility model relates to a kind of burners for kitchen range, including pedestal and it is connected to the fire cover of pedestal, it is characterized by: being provided with ignition electrode and thermocouple arranged side by side in the position of the neighbouring fire cover periphery wall, the position that fire cover periphery wall corresponds to ignition electrode offers at least one fire hole, and, the position of the periphery wall corresponding thermocouples offers at least one and protects fire hole, fire cover periphery wall has been extended outward to form partially along fire cover radial direction and has been blocked in ignition electrode, boss above fire hole and guarantor's fire hole, it is characterized by: ignition electrode is set side by side with thermocouple, it can prevent ignition electrode and thermocouple from causing to cause to stop working because biography fire is bad due to hypertelorism, to improve the lighting rate of gas cooker and protect fiery efficiency, simultaneously, boss is arranged in ignition electrode, above fire hole and guarantor's fire hole, also it effectively acts as hiding Anti- effect prevents the landings such as soup from blocking or interfering the fuel gas flow of 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.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of can improve a little for above-mentioned state of the art Fire, the burner fire lid for gas cooker for protecting igneous power.

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 and the fire cover for being connected to the pedestal, it is characterised in that: be provided with side by side in the position of the neighbouring fire cover periphery wall The ignition electrode and thermocouple of setting, the position that the fire cover periphery wall corresponds to the ignition electrode offer at least one fire hole, Also, the position that the periphery wall corresponds to the thermocouple offers at least one and protects fire hole, and the fire cover periphery wall is partially along institute State fire cover radial direction extended outward to form block the ignition electrode, fire hole and the thermocouple, protect fire hole above Boss.

In order to ensure the ignition performance of ignition electrode, while also ensuring that guarantor's fire performance of thermocouple, it is small can suitably shelter from While discharge, big discharge can't be excessively sheltered from, the boss includes blocking in the ignition electrode and the fire hole First rain visor of top and block the thermocouple and it is described protect fire hole above the second rain visor, second waterproof Eaves is shorter in length than first rain visor along the fire cover radial direction to extension along the fire cover radial direction is outwardly extending The length stretched.

In order to ensure fire hole cannot be too far from ignition electrode, too far gas output is diluted, and causes ignition results bad, and For the setting convenient for following first rain visors, the periphery wall of the fire cover is in the first wall surface of the fire hole place along the fire cover Annular body radial direction locally inwardly inside contract.

Similarly, in order to ensure the properly distance of guarantor's fire hole and thermocouple, the periphery wall of the fire cover is in guarantor's fire hole Second wall surface at place is equally also locally inwardly inside contracted along the annular body radial direction of the fire cover.

In order to ensure thermocouple has the fiery effect of preferable guarantor, thermocouple compares ignition electrode and fire hole at a distance from guarantor's fire hole More recently it can ensure that the heating surface area that thermocouple is contacted with flare, thermocouple is not only heated sufficient, to generate enough heat Electromotive force, second wall surface are shorter in length than first wall surface edge to what is inside contracted along the annular body radial direction of the fire cover The annular body radial direction of the fire cover is to the length inside contracted.

Further, the bottom peripheral edge of the boss has extended downwardly flange collar, which encloses jointly with the boss bottom surface If the umbrella for forming the ignition electrode, fire hole and the thermocouple, protecting fire hole.

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, forms mixing chamber between the fire cover and the pedestal, has in the mixing chamber and be relatively isolated Surge chamber, which is provided with the air inlet with the mixing chamber configured in fluid communication on a wall at least in, and The fire cover peripheral wall offers the fire hole with the surge chamber configured in fluid communication in the position of the corresponding surge chamber.

The buffer part can be set also can be set in cyclic annular fire cover in tubular fire cover, when the fire cover is cyclic annular fire Lid, the ring-type fire cover includes cricoid ontology, the annular top wall of the ontology and from the inside edge of the annular top wall, outer Side edge it is vertical or extend obliquely downward internal ring wall, form the mixing chamber between external annulus, described in the external annulus is corresponding Fire cover peripheral wall.

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 side wall that the surge chamber includes roof and extends downwardly from roof is buffered, the air inlet is provided on side wall.

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 fire cover ontology.

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:

Lateral wall of the outer ring wall part for being provided with fire hole directly as surge chamber, the side wall of the surge chamber There are three: the first side wall opposite with the lateral wall, and second sidewall, second side of connection lateral wall and the first side wall 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 lateral wall 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.The setting of 4th side wall can make combustion gas enter It is flowed out from the first fire output hole after the shock with the 4th side wall after surge chamber, flows out and burn finally by fire hole, air-flow Speed is low, also functions to good buffer function.

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.

In addition, having interval between the first side wall and the internal ring wall.It is contained in the program in addition to above-mentioned It is provided with air inlet in one side wall, while having spaced scheme between internal ring wall, further comprises on second or third side wall Air inlet is offered, but still spaced scheme and open up on second or third side wall between the first side wall and internal ring wall There is air inlet, nonseptate scheme between the first side wall and internal ring wall.

In order to relatively rapidly realize igniting, compared with adjacent parts, the position edge of fire hole is provided on the external annulus The radial direction of the fire cover ontology locally inwardly concaves.

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.

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 bottom-up recessed steady flame groove, the steady flame groove have 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, will not to generate enough thermoelectrical potentials It is 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: ignition electrode is set side by side with thermocouple, can prevent from lighting a fire Needle and thermocouple cause to cause to stop working because biography fire is bad due to hypertelorism, to improve lighting rate and the guarantor of gas cooker Fiery efficiency, meanwhile, boss setting is in ignition electrode, fire hole and protects above fire hole, also effectively acts as hiding anti-effect, prevent The fuel gas flow of the landings such as soup blocking or interference fire hole.

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. 4；

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

It as shown in figs. 1 to 6, is the most preferred embodiment of the utility model, the burner for kitchen range of the present embodiment includes Pedestal 1 and the fire cover for being connected to pedestal 1 are provided with ignition electrode 4 and heat arranged side by side in the position of neighbouring fire cover periphery wall Galvanic couple 5, the position that fire cover periphery wall corresponds to ignition electrode 4 offer at least one fire hole 41, and the quantity of fire hole 41 can be three A, this quantity can ensure that enough gas outputs for lighting a fire.Also, the position of the periphery wall corresponding thermocouples 5 offers At least one protects fire hole 51.Fire cover periphery wall extended outward to form partially along the fire cover radial direction block ignition electrode 4, Fire hole 41 and thermocouple 5, the boss 6 for protecting 51 top of fire hole, the boss 6 include blocking on ignition electrode 4 and fire hole 41 Side the first rain visor 61 and block thermocouple 5 and protect fire hole 51 above the second rain visor 62,62 edge of the second rain visor Outwardly extending first rain visor 61 that is shorter in length than of fire cover radial direction is along the outwardly extending length of fire cover radial direction.Boss 6 Bottom peripheral edge extended downwardly flange collar 610, the flange collar 610 and 6 bottom surface of boss are enclosed jointly to be set to form ignition electrode 4, fire hole 41 And protect the umbrella of fire hole 51.

In the present embodiment, boss 6, which only covers, protects fire hole 51, fire hole 41 and ignition electrode 4, and does not cover thermocouple 5, this It is while to also ensure that guarantor's fire performance of thermocouple 5 in order to ensure the ignition performance of ignition electrode 4, can suitably sheltering from small discharge While, it can't excessively shelter from big discharge.And fire cover can may be cyclic annular fire cover for tubular fire cover, cyclic annular fire Lid, the external annulus 22 of the corresponding cyclic annular fire cover of the periphery wall of cyclic annular fire cover include annular body 2, the cyclic annular top of fire cover ontology 2 Wall 20 and from the inside edge of the annular top surface, outer ledge it is vertical or extend obliquely downward internal ring wall 21, external annulus 22 it Between form mixing chamber 23, there is the surge chamber 7 that is relatively isolated in mixing chamber 23, the surge chamber 7 is at least on a wall Be provided with the air inlet 721 with 23 configured in fluid communication of mixing chamber, and external annulus 22 the position of the corresponding surge chamber 7 offer with The fire hole 41 of 7 configured in fluid communication of surge chamber.Wherein side wall include be provided with 22 part of external annulus of fire hole 41 directly as The lateral wall of surge chamber 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 73 of the first side wall 72, third side wall 71, 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, air inlet Hole 721 and fire hole 41 are on same central axis, are had between the first side wall 72 and internal ring wall 22 where air inlet 721 Interval, it is slow that the design at the interval can preferably be such that the combustion gas for entering mixed air cavity 23 enters by the air inlet 721 of the first side wall 72 Rush room 7.The surge chamber 7 can form a pressure stabilizing area at fire hole 41, it is ensured that the current stabilization of ignition zone, fire hole 41 Flame is steady, improves ignition success rate.

Have to be connected between the lower edge and the top end surface of case ring 8 of the corresponding fire hole 41 of the external annulus 22 of fire cover and delay The gap of room 7 is rushed, which constitutes ignition slot 9.The fine crack shape of ignition slot 9 then accelerates speed of ignition.The ignition slot 9 has Double action, on the one hand the ignition slot 9 plays the role of the igniting of auxiliary ignition holes 41, on the other hand, igniting together with fire hole 41 The lower of fire hole 41, which is arranged in, in slot 9 can enhance anti-blocking probability, while the ignition slot 9 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 2 external annulus 22 of annular body surrounds circumferencial direction Radial direction forms multiple main fiery grooves 26, and spacer block 10 is then formed between adjacent main fiery groove 26, and spacer block 10 forms in Outward and bottom-up recessed steady flame groove 101, the steady flame groove 101 have flared section 102 close to outside.The flared section 102 can reduce the flow velocity of combustion gas, make to flow out steady flame groove 101 and are not easy in burning from flame with combustion gas, while the steady flame groove 101 flames generated can effectively hold the main fire of the main fiery groove 26 in two sides, heat main fire hole combustion gas root, make entire burner The flame stabilization in burning.In order to enable protecting fire hole 51 has double protection, on the one hand has and protect fire action, on the other hand With steady flame effect, it is provided with through-hole on the diametrically opposed side wall of steady flame groove 101, wherein the through-hole on lateral wall is Protect fire hole 51.There is between steady flame groove 101 a main fiery groove 26 two-by-two, can ensure that the heating surface that thermocouple 5 is contacted with flare Product is not excessive only small, and thermocouple 5 is not only heated abundance will not be with guarantor's fire hole 51 to generate enough thermo-electromotive forcves Fiery flare contact is too big out, is easy to burn out thermocouple 5.

Finally, main fire groove 26 includes the circumferentially spaced first main fiery slot 261 and the second main fiery slot 262, the The groove depth of the groove depth fiery slot 262 main less than second of one main fiery slot 261, the first main fiery slot 261 and the second main fiery slot 262 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 41 and have spaced 4th side wall 74 with 41 place external annulus 22 of fire hole, the first side wall 72 ' opposite with the 4th side wall 74, And connect external annulus 22 and 72 ' of the first side wall and extend to 73 ' of second sidewall of external annulus 22,71 ' 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 41 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 for entering mixed air cavity 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 41 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 73 ' of second sidewall, As shown in Figure 9.

Claims (19)

1. a kind of burner for kitchen range, including pedestal (1) and it is connected to the fire cover of the pedestal (1), it is characterised in that: The position of the neighbouring fire cover periphery wall is provided with ignition electrode arranged side by side (4) and thermocouple (5), the fire cover periphery wall The position of the corresponding ignition electrode (4) offers at least one fire hole (41), also, the periphery wall corresponds to the thermocouple (5) position offers at least one and protects fire hole (51), and the fire cover periphery wall is partially along the fire cover radial direction to extension It stretches to be formed with and block in the ignition electrode (4), fire hole (41) and the boss (6) protected above fire hole (51).

2. the burner according to claim 1 for kitchen range, it is characterised in that: the boss (6) includes blocking in institute It states the first rain visor (61) above ignition electrode (4) and the fire hole (41) and blocks above guarantor's fire hole (51) Second rain visor (62), second rain visor (62) are shorter in length than described first along the fire cover radial direction is outwardly extending Rain visor (61) is along the outwardly extending length of fire cover radial direction.

3. the burner according to claim 2 for kitchen range, it is characterised in that: the fire cover periphery wall is in the igniting The first wall surface (24) is locally inwardly concaved along the fire cover radial direction where hole (41).

4. the burner according to claim 3 for kitchen range, it is characterised in that: the fire cover periphery wall is in guarantor's fire The second wall surface (25) where hole (51) is equally also locally inwardly concaved along the fire cover radial direction.

5. the burner according to claim 4 for kitchen range, it is characterised in that: second wall surface (25) is along the fire Annular body (2) radial direction of lid is shorter in length than first wall surface (24) along the annular body of the fire cover to recessed (2) radial direction is to recessed length.

6. the burner of kitchen range is used for described in any one claim according to claim 1~5, it is characterised in that: described The bottom peripheral edge of boss (6) has extended downwardly flange collar (610), which encloses to set to be formed jointly with the boss (6) bottom surface The ignition electrode (4), fire hole (41) and the umbrella for protecting fire hole (51).

7. the burner of kitchen range is used for described in any one claim according to claim 1~5, it is characterised in that: described Mixing chamber (23) are formed between fire cover and the pedestal (1), there is the surge chamber being relatively isolated in the mixing chamber (23) (7), which is provided with the air inlet with the mixing chamber (23) configured in fluid communication on a wall at least in (721), and the fire cover peripheral wall in the position of the corresponding surge chamber offers the institute with the surge chamber (7) configured in fluid communication State fire hole (41).

8. the burner according to claim 7 for kitchen range, it is characterised in that: the fire cover is cyclic annular fire cover, described Cyclic annular fire cover includes cricoid ontology (2), the annular top wall (20) of the ontology (2) and from the inside of the annular top wall (20) Edge, outer ledge it is vertical or extend obliquely downward internal ring wall (21), form the mixing chamber (23) between external annulus (22), The corresponding fire cover peripheral wall of the external annulus (22).

9. the burner according to claim 8 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.

10. the burner according to claim 9 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.

11. the burner according to claim 10 for kitchen range, it is characterised in that: described is provided with the fire hole (41) 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 The opposite the first side wall of the lateral wall (72,72 '), and connection lateral wall and the first side wall (72) second sidewall (73, 73 '), third side wall (71,71 ').

12. the burner according to claim 11 for kitchen range, it is characterised in that: the side wall of the surge chamber has four It is a: neighbouring the fire hole (41) and to have spaced 4th side wall (74) with external annulus (22) where fire hole (41), with institute The opposite the first side wall (72,72 ') of the 4th side wall (74) is stated, and connects lateral wall and the first side wall (72,72 ') and extends to The second sidewall (73,73 ') of external annulus (22), third side wall (71,71 '), wherein being provided with first on the 4th side wall (74) goes out fire Hole (741).

13. the burner according to claim 11 or 12 for kitchen range, it is characterised in that: the air inlet (721) It is provided on the first side wall (72,72 ').

14. the burner according to claim 13 for kitchen range, it is characterised in that: the first side wall (72,72 ') There is interval between the internal ring wall (21).

15. the burner according to claim 11 or 12 for kitchen range, it is characterised in that: compared with adjacent parts, institute It states and is provided with the position of the fire hole (41) on external annulus (22) and is locally inwardly concaved along the radial direction of the fire cover.

16. being used for the burner of kitchen range according to claim 9~12 any one claim, it is characterised in that: institute It states and is additionally provided with case ring (8) between pedestal (1) and cyclic annular fire cover, the fire cover is stacked on the case ring (8), the decoration Offer first through hole (81) and the second through-hole (82) on circle (8), the ignition electrode (4) across the first through hole (81) and to On stretch out in the case ring (8), the thermocouple (5) passes through and second through-hole (82) and stretches out in the case ring upwards (8), a part of the end face of the case ring (8) then constitutes the bottom wall (83) of the surge chamber (7).

17. the burner according to claim 16 for kitchen range, it is characterised in that: the external annulus of the ring-type fire cover (22) lower end surface radially forms multiple main fiery grooves (26) around circumferencial direction, and between adjacent main fiery groove (26) then It is formed spacer block (10), the spacer block (10) forms from inside to outside and bottom-up recessed steady flame groove (101), the steady flame Groove (101) has flared section (102) close to outside.

18. the burner according to claim 17 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).

19. the burner of kitchen range is used for described in 7 or 18 according to claim 1, it is characterised in that: the main fiery groove (26) is wrapped The main fiery slot (261) of circumferentially spaced first and the second main fiery slot (262) are included, described first main fiery slot (261) are opened The groove depth of groove depth fiery slot (262) main less than second, the described first main fiery slot (261) and the second main fiery slot (262) and institute It states case ring (8) and cooperatively forms the first main fire hole and the second main fire hole, the steady flame groove (101) is matched with the case ring (8) Conjunction forms steady flame channel.