CN212408657U

CN212408657U - Combustor and gas stove

Info

Publication number: CN212408657U
Application number: CN202021374248.1U
Authority: CN
Inventors: 随晶侠; 张炳卫; 朱运波; 李卫力; 潘福敏
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-01-26
Anticipated expiration: 2030-07-13

Abstract

The utility model provides a burner and a gas cooker, wherein, the burner comprises a burner main body; and the fire lid, the fire lid is covered and is located in the combustor main part, the fire lid with the combustor main part encloses to close and forms the gas chamber, the fire is covered and is equipped with the intercommunication the first steady flame hole in gas chamber, the fire lid with form interior steady flame groove between the combustor main part, first steady flame hole with interior steady flame groove communicates mutually, the fire lid with the combustor main part orientation be formed with the confession between a lateral surface of fire lid interior steady flame inslot's liquid is to keeping away from the guiding gutter that the fire lid direction flows. The utility model adopts the fire cover and the burner main body to form the inner flame stabilizing groove; through set up the guiding gutter of intercommunication flame stabilizing groove on the combustor main part, will get into the liquid of flame stabilizing inslot and to the direction guide of keeping away from the fire lid, avoid liquid to block up first flame stabilizing hole, make the combustor have stable flame air current output.

Description

Combustor and gas stove

Technical Field

The utility model relates to a kitchen appliance field, in particular to combustor and gas cooking utensils.

Background

When the gas stove is used, as soup overflows from the pot in the cooking process, the soup flows downwards along the wall surface of the pot and drops onto the burner of the gas stove. The existing burner is usually provided with a flame stabilizing hole, so that the effect of stabilizing flame can be achieved. When grease in the cooking liquor flows downwards along the surface of the burner, the grease is easily attached to the surface of a fire cover of the burner, and due to the action of surface tension, the grease is easily attached to the flame stabilizing holes to block the flame stabilizing holes.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a combustor and gas cooking utensils, aim at improving the easy problem of blockking up of current combustor steady flame hole.

In order to achieve the above object, the utility model provides a fire cover, include:

the utility model discloses on the basis of above-mentioned combustor, provide a combustor, include:

a burner body; and

the fire lid, the fire lid is covered and is located in the combustor main part, the fire lid with the combustor main part encloses to close and forms the gas chamber, the fire is covered and is equipped with the intercommunication the first steady flame hole in gas chamber, the fire lid with form interior steady flame groove between the combustor main part, first steady flame hole with interior steady flame groove communicates mutually, the fire lid with the combustor main part orientation be formed with the confession between a lateral surface of fire lid interior steady flame inslot's liquid is to keeping away from the guiding gutter that the fire lid direction flows.

Optionally, the burner body includes a gas distribution plate, the fire cover is installed on the gas distribution plate, the inner flame stabilizing groove is formed between the fire cover and the gas distribution plate, and the diversion trench is arranged on the gas distribution plate.

Optionally, the fire cover comprises a top wall and a first inner annular wall and a first outer annular wall connected with the top wall;

the gas distribution disc comprises a bottom wall, and a second inner annular wall and a second outer annular wall which are connected with the bottom wall, and the top wall, the first outer annular wall, the second outer annular wall, the bottom wall, the second inner annular wall and the first inner annular wall enclose to form a gas cavity;

the inner flame stabilizing groove is formed between the opposite end faces of the first inner annular wall and the second inner annular wall, the first flame stabilizing hole is formed in the first inner annular wall, and the diversion groove is formed in the second inner annular wall.

Optionally, a first annular vertical wall is arranged at one end, away from the top wall, of the first inner annular wall, the first flame stabilizing hole is arranged on the first annular vertical wall, and a first step surface facing away from the top wall is formed between the first annular vertical wall and the first inner annular wall;

the inner flame stabilizing groove is formed between the end face of one side, far away from the bottom wall, of the second inner annular wall and the first step face, the first annular vertical wall is annularly arranged on the outer side of the second inner annular wall, and the diversion groove is formed between the first annular vertical wall and the second inner annular wall.

Optionally, one end of the first flame stabilizing hole, which is far away from the gas cavity, is communicated with the diversion trench;

and/or an inner ring fire hole communicated with the gas cavity is formed in the first inner ring wall, and a second flame stabilizing hole communicated with the inner flame stabilizing groove and the inner ring fire hole is formed in the first inner ring wall.

Optionally, a second annular vertical wall is arranged on an end surface of one side of the second inner annular wall, which is far away from the bottom wall, the first annular vertical wall is annularly arranged on the outer side of the second annular vertical wall, the inner flame stabilizing groove is formed between the first step surface and one end of the second annular vertical wall, which is far away from the second inner annular wall, and the diversion groove is formed between the second annular vertical wall and the first annular vertical wall;

the second annular vertical wall and the second inner annular wall form a second step surface back to the bottom wall, and one end, far away from the first inner annular wall, of the first annular vertical wall is attached to the second step surface.

Optionally, the fire lid further comprises a first middle annular wall, the first middle annular wall is located between the first outer annular wall and the first inner annular wall and connected with the top wall;

the gas distribution disc further comprises a second middle ring wall, the second middle ring wall is located between the second outer ring wall and the second inner ring wall and connected with the bottom wall, one end, far away from the bottom wall, of the second middle ring wall is connected with one end, far away from the top wall, of the first middle ring wall, so that the gas cavity is divided into an inner ring gas cavity and an outer ring gas cavity, an inner ring fire hole communicated with the inner ring gas cavity is formed in the first inner ring wall, and an outer ring fire hole communicated with the outer ring gas cavity is formed in the first outer ring wall.

Optionally, the top wall, the first inner annular wall, the first middle annular wall, and the first outer annular wall are integrally disposed.

Optionally, the first inner annular wall is formed with a central lumen therearound;

one end, far away from the inner ring gas cavity, of the inner ring fire hole is arranged towards the central cavity; and/or

One end, far away from the outer ring gas cavity, of the outer ring fire hole is arranged towards the peripheral direction of the first outer ring wall; and/or

And a heat conduction surface used for guiding the airflow in the central cavity to the direction of the first outer annular wall is formed on the surface of one side, away from the gas cavity, of the top wall.

Optionally, the burner body further comprises a burner, the burner comprising:

the burner body is provided with an inner ring air channel communicated with the inner ring gas cavity and an outer ring air channel communicated with the outer ring gas cavity, the inner ring air channel and the outer ring air channel are annular channels, and the outer ring air channel is annularly arranged on the outer side of the inner ring air channel;

one end of the first air inlet pipe is communicated with the outer annular air duct, and a first air inlet is formed at the other end of the first air inlet pipe; and

one end of the second air inlet pipe is communicated with the inner ring air channel, the other end of the second air inlet pipe is provided with a second air inlet, and the air flow direction formed by the first air inlet pipe and the second air inlet pipe is perpendicular to the axial direction of the furnace end body.

The utility model provides a gas cooking utensils on the basis of above-mentioned combustor, gas cooking utensils include as above-mentioned the combustor.

According to the technical scheme of the utility model, the inner flame stabilizing groove is formed by the fire cover and the burner main body, so that the flame stabilizing airflow jetted from the first flame stabilizing hole can enter the inner flame stabilizing groove to play a flame stabilizing effect; through set up the guiding gutter in intercommunication flame stabilizing groove in the combustor main part, will get into the liquid of flame stabilizing inslot to the direction guide of keeping away from the fire lid to make liquid can not flow to first flame stabilizing hole direction, and then avoid liquid to block up first flame stabilizing hole, and then make the combustor have stable flame stabilizing air current output.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the burner of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion A1 of FIG. 3;

FIG. 5 is a schematic structural view of an embodiment of the fire cover of the present invention;

FIG. 6 is a schematic structural view of an embodiment of the internal structure of the fire cover of the present invention;

FIG. 7 is a schematic structural view of an embodiment of the present invention showing the state of the air distribution plate and the furnace head;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a schematic structural view of an embodiment of the furnace head of the present invention;

fig. 10 is a schematic view of the structure of the first intake pipe and the second intake pipe according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Furnace end	11	Outer ring air duct
111	First air inlet pipe	12	Inner ring air duct
				121	Second air inlet pipe	20	Air distribution plate
21	Second outer annular wall	22	Second middle ring wall
				23	Second inner ring wall	24	Second annular vertical wall
25	Second step surface	26	Bottom wall
				300	Fire lid	30	Roof wall
301	Heat conducting surface	31	A first outer annular wall
				32	Outer ring fire hole	33	A first inner annular wall
34	First annular vertical wall	35	First flame stabilizing hole
				36	Central cavity	37	Inner ring fire hole
38	Second flame stabilizing hole	39	First middle ring wall
				40	Inner ring gas chamber	41	Outer ring gas chamber
50	Inner flame stabilizing groove	60	Diversion trench

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 4, a burner includes: a burner body; and fire lid 300, fire lid 300 covers locates in the combustor main part, fire lid 300 with the combustor main part encloses to close and forms the gas chamber, be equipped with the intercommunication on the fire lid 300 the first steady flame hole 35 in gas chamber, fire lid 300 with form interior steady flame groove 50 between the combustor main part, first steady flame hole 35 with interior steady flame groove 50 is linked together, fire lid 300 with the combustor main part orientation be formed with the confession between a side end face of fire lid 300 liquid in the interior steady flame groove 50 is to keeping away from the guiding gutter 60 that the fire lid 300 direction flows.

The burner body is used for mounting the fire cover 300, so that the fire cover 300 and the burner body form an integral structure. The fire cover 300 is provided with fire holes communicated with the gas cavity, and the positions of the fire holes can be selected according to the specific form of the burner, and the prior art can also be referred.

The air current gets into the combustor main part with behind the gas chamber that the fire lid 300 formed, partial air current passes through the fire hole injection on the fire lid 300 forms flame, and partial air current certainly first steady flame hole 35 is exported, and the air current passes through interior steady flame groove 50 exports the fire lid 300 is outside, in order to share the gas load in gas chamber, and then can improve the stability of the flame that the fire hole injection of fire lid 300 formed plays the effect of steady flame.

The connection part of the fire cover 300 and the burner body has a gap, the gap forms the inner flame stabilizing groove 50, and the inner flame stabilizing groove 50 is communicated with the first flame stabilizing hole 35. The airflow output from the first flame stabilizing hole 35 is output from the inner flame stabilizing groove 50 to the outside of the fire cover 300, thereby realizing the output of the flame stabilizing airflow. The inner flame stabilizing groove 50 is a gap between the fire cover 300 and the opposite end surfaces of the burner body, so that when liquid flows along the direction of the burner body from the fire cover 300, part of the liquid flows downwards along the burner body, and part of the liquid enters the inner flame stabilizing groove 50.

The inner flame holding groove 50 is far away from one side end face of the fire cover 300 and is a lower end face thereof, and the diversion groove 60 is communicated with the lower end face of the inner flame holding groove 50, so that liquid entering the inner flame holding groove 50 flows along the lower end face of the inner flame holding groove 50 towards the diversion groove 60. The liquid is transported to a direction away from the fire cover 300 through the guiding groove 60, so that the liquid is away from the first flame stabilizing hole 35. First steady flame hole 35 intercommunication the one end in gas chamber is its inlet end, first steady flame hole 35 intercommunication the one end in steady flame groove is its end of giving vent to anger, the end of giving vent to anger in first steady flame groove with the lower terminal surface in steady flame groove 50 is not on the coplanar, so that get into liquid in interior steady flame groove 50 can not directly along the lower terminal surface of interior steady flame groove 50 flows into the end of giving vent to anger in first steady flame hole 35.

Through making the guiding gutter 60 will get into liquid in the interior flame holding groove 50 is to keeping away from the direction water conservancy diversion of fire lid makes the entering interior flame holding groove 50's liquid can in time follow under the action of gravity interior flame holding groove 50 discharges, can not accumulate and block up in the interior flame holding groove 50, and then can make the air current distribution of interior flame holding groove 50 output is more even. Because first flame stabilizing hole 35 with interior flame stabilizing groove 50 is linked together, the air current of first flame stabilizing hole 35 output need pass through interior flame stabilizing groove 50 is discharged, interior flame stabilizing groove 50 is the passageway of air current output, works as after the liquid in interior flame stabilizing groove 50 is discharged, the air current output of first flame stabilizing hole 35 is also relatively more stable.

Because the liquid in the inner flame stabilizing groove 50 can be output in the direction far away from the fire cover, the liquid cannot continuously flow towards the direction of the gas outlet end of the first flame stabilizing hole 35, and further the blockage of the liquid at the gas outlet end of the first flame stabilizing hole 35 can be avoided.

The guiding groove 60 may be a through hole penetrating the burner body, and one end of the guiding groove communicates with a side end surface of the inner flame stabilizing groove 50 away from the fire cover, and the other end communicates with the outside of the burner body. The other end of the diversion trench 60 may also communicate with the gas chamber. When the burner is manufactured, the fire cover 300 may be detachably connected to the burner main body, and at this time, one end of the guiding groove 60, which is far away from the inner flame holding groove 50, may be a gap between the fire cover 300 and the burner main body.

Because in the burner heating process, the soup that overflows in the pan from the pan flows to the middle part of burner along the pan bottom surface easily, in this embodiment, be formed with central cavity 36 in the middle part of fire lid 300, interior flame stabilizing slot 50 orientation central cavity 36 sets up.

Referring to fig. 1 and 3, in an embodiment of the present invention, the burner main body includes an air distributor 20, the fire cover 300 is installed on the air distributor 20, the inner flame stabilizing slot 50 is formed between the fire cover 300 and the air distributor 20, and the guiding slot 60 is disposed on the air distributor 20. The air distributor 20 is used to form a structure on the burner body for guiding the air flow to the fire cover 300, so that the air flow input to the burner can be delivered to a preset position of the fire cover 300 according to a preset path.

The gas distribution disc 20 and the fire cover 300 are matched, when the fire cover 300 is installed on the gas distribution disc 20, the fire cover 300 and the gas distribution disc 20 form a gas cavity for accommodating gas, the fire cover 300 faces one side end face of the gas distribution disc 20 and the gas distribution disc 20 faces one side end face of the fire cover 300, a gap is formed between the side end faces, and the gap serves as the inner flame stabilizing groove 50. The guiding gutter 60 is located on the gas distributor 20, the one end intercommunication of guiding gutter 60 interior flame stabilizing groove 50 is kept away from the terminal surface of a side of fire lid, the other end of guiding gutter 60 is to keeping away from the direction of fire lid extends, so that the liquid in interior flame stabilizing groove 50 can be along the guiding gutter 60 is to keeping away from the direction flow of fire lid.

Referring to fig. 3, 5 and 6, the fire cover 300 includes a top wall 30, and a first inner annular wall 33 and a first outer annular wall 31 connected to the top wall 30; the gas distributor 20 comprises a bottom wall 26, and a second inner annular wall 23 and a second outer annular wall 21 connected to the bottom wall 26, wherein the top wall 30, the first outer annular wall 31, the second outer annular wall 21, the bottom wall 26, the second inner annular wall 23, and the first inner annular wall 33 enclose to form a gas chamber; the inner flame stabilizing groove 50 is formed between the opposite end surfaces of the first inner annular wall 33 and the second inner annular wall 23, the first flame stabilizing hole 35 is arranged on the first inner annular wall 33, and the diversion groove 60 is arranged on the second inner annular wall 23.

The first outer ring wall 31 is disposed around the first inner ring wall 33, and the first inner ring wall 33, the first outer ring wall 31 and the top wall 30 enclose a cavity facing the gas distributor 20. The second outer annular wall 21 is annularly arranged outside the second inner annular wall 23, the second outer annular wall 21, the bottom wall 26 and the second inner annular wall 23 enclose a cavity facing the fire cover, the first inner annular wall 33 is in fit connection with the second inner annular wall 23, the first outer annular wall 31 is in fit connection with the second outer annular wall 21, and the top wall 30 and the bottom wall 26 are oppositely arranged to form the gas cavity.

A gap is formed between the facing end surfaces of the first inner annular wall 33 and the second inner annular wall 23, and the gap forms the inner flame holding groove 50. The guiding groove 60 is used for communicating with one end of the inner flame holding groove 50 far away from the top wall 30.

Optionally, in this embodiment, the inner diameter of the first inner annular wall 33 is smaller than or equal to the inner diameter of the second inner annular wall 23. When the liquid flows along the first inner annular wall 33 toward the second inner annular wall 23, the first inner annular wall 33 can form a blocking edge above the second inner annular wall 23, so that most of the liquid can flow downward along the trajectory formed by the first inner annular wall 33, and the rest of the liquid can enter the inner flame holding groove 50.

The inner diameter of the first inner annular wall 33 and the inner diameter of the second inner annular wall 23 may be selected as required, or refer to the prior art.

In this embodiment, optionally, a first annular vertical wall 34 is disposed at an end of the first inner annular wall 33 away from the top wall 30, the first flame stabilizing hole 35 is disposed on the first annular vertical wall 34, and a first step surface facing away from the top wall 30 is formed between the first annular vertical wall 34 and the first inner annular wall 33; the inner flame stabilizing groove 50 is formed between the end surface of one side of the second inner annular wall 23 far away from the bottom wall 26 and the first step surface, the first annular vertical wall 34 is annularly arranged on the outer side of the second inner annular wall 23, and the diversion groove 60 is formed between the first annular vertical wall 34 and the second inner annular wall 23.

When the liquid flows from the fire cover to the gas distribution plate 20, the liquid flows gradually in a direction away from the fire cover on the end surface of one side of the inner flame stabilizing groove 50 away from the fire cover. When the liquid flows into the guide groove 60, the liquid can flow along the guide groove 60 toward the gas chamber.

In order to keep the fire cover 300 and the gas distribution plate 20 stable, a connection structure may be provided between the fire cover 300 and the gas distribution plate 20, the first outer annular wall 31 of the fire cover 300 and the second outer annular wall 21 of the gas distribution plate 20 may be riveted, or other connection methods may be selected to keep the fire cover 300 and the gas distribution plate 20 in a predetermined state.

In this embodiment, optionally, one end of the first flame stabilizing hole 35 away from the gas chamber communicates with the diversion trench 60. The first flame stabilizing hole 35 may be disposed along an axial direction perpendicular to the burner body, or may be an inclined hole. The gas outlet end of the first flame stabilizing hole 35 is lower than the plane of the end of the second inner annular wall 23 away from the bottom wall 26, so that the gas flow output by the first flame stabilizing hole 35 is blocked and diverted by the second inner annular wall 23, and flows in the direction of the inner flame stabilizing slot 50.

The inner flame stabilizing grooves 50 are communicated with the flow guide grooves 60, and when the air flow is output from the first flame stabilizing holes 35, the air flow acts on the surface of the second inner annular wall 23, so that the liquid flowing along the end surface of one side of the inner flame stabilizing grooves 50, which is far away from the top wall 30, and the outer surface of the second inner annular wall 23 is impacted by the air flow, and the liquid can only flow along the outer surface of the second inner annular wall 23 under the action of the air flow. Because the first flame stabilizing hole 35 is arranged on the first annular vertical wall 34, and a gap is formed between the first annular vertical wall 34 and the second inner annular wall 23, the liquid cannot be directly attached to the outer surface of the first annular vertical wall 34 and further cannot be attached to the first flame stabilizing hole 35 in the liquid flowing process, and the first flame stabilizing hole 35 is further prevented from being blocked.

Referring to fig. 4, in this embodiment, optionally, a second annular vertical wall 24 is disposed on an end surface of the second inner annular wall 23, which is away from the bottom wall 26, the first annular vertical wall 34 is disposed around an outer side of the second annular vertical wall 24, the inner flame stabilizing groove 50 is formed between the first step surface and an end of the second annular vertical wall 24, which is away from the second inner annular wall 23, and the flow guiding groove 60 is formed between the second annular vertical wall 24 and the first annular vertical wall 34. A second step surface 25 facing away from the bottom wall 26 is formed on the second annular standing wall 24 and the second inner annular wall 23, and one end of the first annular standing wall 34 far away from the first inner annular wall 33 is attached to the second step surface 25.

The second step surface 25 is used to form a surface for supporting the first annular standing wall 34. A gap is formed between the outer wall of the first annular vertical wall 34 and the inner wall of the second annular vertical wall 24, and the gap forms the diversion trench 60. An inner flame holding groove 50 is formed between the second annular vertical wall 24 and the first step surface, and the inner flame holding groove 50 is communicated with a gap between the first annular vertical wall 34 and the second annular vertical wall 24, namely communicated with the diversion trench 60. By arranging the second annular vertical wall 24 to be matched with the first annular vertical wall 34, when the fire cover is installed on the gas distribution plate 20, the second inner annular wall 23 can support the first annular vertical wall 34, so that the fire cover is kept in a stable state.

When liquid flows towards the inside of the guide groove 60 along one side end surface of the inner flame stabilizing groove 50, which is far away from the top wall 30, because the first annular vertical wall 34 is attached to the second step surface 25, a cavity for storing the liquid is formed between the first annular vertical wall 34 and the second annular vertical wall 24, so that the liquid is reduced from flowing into the gas cavity. When the fire cover is taken down from the gas distribution plate 20, the gas distribution plate 20 can be cleaned conveniently.

Referring to fig. 5 and 6, in an embodiment of the present invention, an inner annular fire hole 37 communicating with the gas chamber is formed on the first inner annular wall 33; the first inner annular wall 33 is provided with a second flame stabilizing hole 38 communicating the inner flame stabilizing groove 50 and the inner annular flame hole 37. The second flame stabilizing holes 38 are used for guiding part of the airflow in the inner ring flame holes 37 to the inner flame stabilizing grooves 50, so as to share the gas load of the inner ring flame holes 37, reduce the flow rate of the airflow formed by the injection of the inner ring flame holes 37, and further play a flame stabilizing effect.

The end of the second flame holding hole 38 away from the inner ring flame hole 37 may communicate with the end surface of the inner flame holding groove 50 near the top wall 30. The second flame stabilizing hole 38 may also communicate with a connecting portion of the first annular vertical wall 34 and the inner flame stabilizing groove 50, so as to reduce the impact on the output airflow of the first flame stabilizing hole 35. When the airflow output by the second flame holding holes 38 acts on a side end surface of the inner flame holding groove 50 far away from the fire cover, resistance can be generated on liquid, and the liquid on the side end surface of the inner flame holding groove 50 far away from the top wall 30 is prevented from flowing onto the outer surface of the first annular vertical wall 34.

Referring to fig. 3 and 6, in an embodiment of the present invention, the fire lid 300 further includes a first middle annular wall 39, the first middle annular wall 39 is located between the first outer annular wall 31 and the first inner annular wall 33, and is connected to the top wall 30; the gas distribution plate 20 further includes a second middle annular wall 22, the second middle annular wall 22 is located between the second outer annular wall 21 and the second inner annular wall 23 and connected to the bottom wall 26, one end of the second middle annular wall 22 away from the bottom wall 26 is connected to one end of the first middle annular wall 39 away from the top wall 30, so that the gas chamber is divided into an inner gas chamber 40 and an outer gas chamber 41, an inner fire hole 37 communicating with the inner gas chamber 40 is formed in the first inner annular wall 33, and an outer fire hole 32 communicating with the outer gas chamber 41 is formed in the first outer annular wall 31. The first middle annular wall 39 and the second middle annular wall 22 are adapted to each other, so that when the fire cover 300 is installed on the gas distribution plate 20, the first middle annular wall 39 and the second middle annular wall 22 are connected.

The first inner annular wall 33, the first middle annular wall 39 and the first outer annular wall 31 are all disposed on the same side of the top wall 30, and the first inner annular wall 33, the first middle annular wall 39 and the first outer annular wall 31 are disposed from inside to outside so as to form an annular cavity between the first inner annular wall 33 and the first middle annular wall 39, and form an annular cavity between the first middle annular wall 39 and the first outer annular wall 31. The inner ring fire hole 37 communicates the outside of the fire cover 300 with the inner ring gas chamber 40, and the gas flow is injected to the outside of the first inner annular wall 33 through the inner ring fire hole 37. An annular chamber is formed among the first middle annular wall 39, the first outer annular wall 31 and the top wall 30, the outer annular fire hole 32 communicates the outside of the fire cover 300 and the outer annular gas chamber 41, and the gas flow is injected to the outside of the first outer annular wall 31 through the outer annular fire hole 32.

The top wall 30 is a side end surface of the fire lid 300, and serves as a side surface of the fire lid 300 facing the bottom surface of the pot, and the top wall 30 is connected to the first inner annular wall 33, the first middle annular wall 39 and the first outer annular wall 31 at the same time, so that the fire lid 300 is formed into a unitary structure. When the inner ring fire holes 37 are formed in the first inner ring wall 33 and the outer ring fire holes 32 are formed in the first outer ring wall 31, no gap is formed between the top wall 30 and the first inner ring wall 33 or the first middle ring wall 39 or the first outer ring wall 31, only the inner ring fire holes 37 can be seen as a passage communicating with the inner ring gas chamber 40, and the outer ring fire holes 32 form a passage communicating with the outer ring gas chamber 41, as viewed from the outside of the fire cover 300.

In this embodiment, optionally, the top wall 30, the first inner annular wall 33, the first middle annular wall 39 and the first outer annular wall 31 are integrally formed.

By providing the top wall 30 integrally with the first inner and outer

annular walls

33 and 31, the fire cover 300 can be easily installed without secondary assembly. Since the top wall 30 is integrally formed with the first inner annular wall 33 and the first outer annular wall 31, the outer surface of the fire lid 300 has no gap, so that a large amount of soup overflowing from a pot does not adhere to a connection portion between the top wall 30 and the first inner annular wall 33 or the first outer annular wall 31 during use of the fire lid 300, thereby facilitating cleaning.

The inner ring fire hole 37 is used for forming a channel on the first inner ring wall 33 for guiding the airflow of the inner ring gas chamber 40 to the outside of the fire cover 300, and the outer ring fire hole 32 is used for forming a channel on the first outer ring wall 31 for guiding the airflow of the outer ring gas chamber 41 to the outside of the fire cover 300, so that the existing combined fire cover 300 is easily influenced by the operation skill and causes the problem of dislocation of the fire cover 300 when being assembled. In this embodiment, since the top wall 30, the first inner ring wall 33, the first outer ring wall 31 and the first middle ring wall 39 form an integral structure, the stability of the fire cover 300 can be improved, so that the inner ring fire holes 37 and the outer ring fire holes 32 can be always kept at predetermined positions, and thus the inner ring fire holes 37 or the outer ring fire holes 32 can be prevented from being dislocated. When the fire cover 300 is used, flame sprayed out from the fire cover 300 is relatively stable, so that a good heating effect is kept, and user experience is improved.

Through adopting integrative mode that sets up, the shape of fire lid 300 is relatively definite, the position of inner ring fire hole 37 with outer ring fire hole 32 keeps invariable state for the gas flow field of the inside and periphery of fire lid 300 keeps in the state of predetermineeing, and then can make the combustion efficiency of fire lid 300 keeps in the state of predetermineeing, further promotes the utilization efficiency of gas. Meanwhile, the flow field is kept in a stable state, so that the fire cover 300 can be conveniently matched with other functional components, and the adaptability of the fire cover 300 is improved.

In this embodiment, optionally, the first inner annular wall 33 surrounds a central cavity 36, and an end of the inner annular fire hole 37 far away from the inner annular gas cavity 40 is disposed toward the central cavity 36. By arranging the inner ring fire holes 37 in the circumferential direction of the first inner ring wall 33, the air flow can be intensively ejected toward the central chamber 36. In this embodiment, the air flow ejected from the inner ring fire holes 37 is ejected upward in an obliquely upward direction toward the center of the central chamber 36. In the use state of the fire lid 300, the central cavity 36 forms a heat concentration area, so that heat can be concentrated on the bottom of a cooker. When a small amount of food is cooked, the heat can be intensively acted on the concentrated area of the food, and the cooking efficiency is further improved.

Because the inner ring fire hole 37 can form the effect of concentrated small-area heating to the bottom of the pot, the fire cover 300 can concentrate the combustion of the gas above the central cavity 36 in the use state of small fire or minimum fire, and further improve the utilization efficiency of the gas.

In the use process of the fire cover 300, when soup overflows in the cooking process, the inner ring fire holes 37 are formed in the circumferential direction of the first inner ring wall 33, and the inner ring fire holes 37 are formed in the central cavity 36, so that the soup can be prevented from entering the inner ring fire holes 37, and the inner ring fire holes 37 are prevented from being blocked.

In another embodiment of the present invention, an end of the outer ring fire hole 32 away from the outer ring gas chamber 41 is disposed toward the outer circumferential direction of the first outer ring wall 31. The outer ring fire holes 32 form air flow passages that guide air flow toward the outside of the first outer ring wall 31. In the use process of the fire cover 300, the soup can be prevented from entering the outer ring fire holes 32, and then the outer ring fire holes 32 are prevented from being blocked.

When the inner ring fire hole 37 arranged towards the central cavity 36 is matched with the first outer ring fire hole 32 arranged towards the periphery of the outer ring wall, the inner ring fire hole 37 can be used for spraying and heating the bottom center of the cookware, and the outer ring fire hole 32 can be used for spraying and heating the bottom edge of the cookware, so that the cookware is heated more uniformly, and the cooking efficiency is improved.

Because the inner ring fire holes 37 are sprayed and heated towards the central cavity 36, the outer ring fire holes 32 are sprayed and heated towards the periphery of the fire cover 300, and a stable flow field is formed at the periphery of the fire cover 300, so that the fire cover 300 forms a uniform heating area, and uniform heating is realized. Through forming even heating region, can conveniently cooperate with other functional unit to promote the utilization efficiency of gas. Since the inner ring fire holes 37 and the outer ring fire holes 32 have relatively stable airflow fields, the fire cover 300 has a better flame stabilizing effect.

The inner ring fire holes 37 are distributed at equal intervals along the circumferential direction of the first inner ring wall 33, and the outer ring fire holes 32 are distributed at intervals along the circumferential direction of the first outer ring wall 31, so that the injection combustion positions of the inner ring fire holes 37 and the outer ring fire holes 32 are relatively constant. The user installs again after wasing, the position of inner ring fire hole 37 with outer ring fire hole 32 is also invariable relatively, and then makes the combustion state of fire lid 300 keeps invariable, can reduce because the equipment does not accord with the unstable problem of combustion state that preset standard appears, and then reduces the gas loss.

In an embodiment of the present invention, the first inner annular wall 33 surrounds and forms a central cavity 36, and a side surface of the top wall 30 facing away from the gas cavity is formed with a heat conduction surface 301 for guiding the airflow in the central cavity 36 to the direction of the first outer annular wall 31. The flame that the inner ring fire hole 37 sprayed the formation can concentrate on acting on pan bottom center, simultaneously the heat along heat conducting surface 301 to the periphery radiation of fire lid 300 realizes carrying out the even heating to the pan bottom.

In an embodiment of the present invention, the first outer annular wall 31 is provided with a third flame stabilizing hole communicating the outside of the first outer annular wall 31 and the outer annular flame hole 32. The third flame stabilizing holes are used for reducing the gas pressure of the gas in the outer ring fire holes 32, so that the problem that flame formed by spraying the outer ring fire holes 32 is separated from flame is avoided.

Referring to fig. 7 and 8, in an embodiment of the present invention, the burner further includes a burner 10, the burner 10 includes: the burner body, the gas distribution disc 20 install in on the burner body, the burner body be formed with the inner ring wind channel 12 that the inner ring gas chamber 40 is linked together with the outer ring wind channel 11 that the outer ring gas chamber 41 is linked together. The outer annular air duct 11 and the inner annular air duct 12 are both annular air ducts. The burner 10 is used to form a passage for delivering gas to the fire cover 300, so that gas can be delivered to the inner ring gas chamber 40 and the outer ring gas chamber 41 along a predetermined passage.

Referring to fig. 9 and 10, in this embodiment, optionally, the furnace end 10 further includes: a first air inlet pipe 111, one end of which is communicated with the outer annular air duct 11 and the other end of which is formed with a first air inlet; and a second air inlet pipe 121, one end of which is communicated with the inner ring air duct 12 and the other end of which is formed with a second air inlet. The first air inlet pipe 111 and the second air inlet pipe 121 are respectively used for inputting fuel gas into the burner 10, so as to supply air to the inner ring fire holes 37 and the outer ring fire holes 32, and thus the inner ring flame formed by the inner ring fire holes 37 or the outer ring flame formed by the outer ring fire holes 32 can be independently adjusted.

Optionally, in this embodiment, an airflow direction formed by the first air inlet pipe 111 and the second air inlet pipe 121 is perpendicular to an axial direction of the burner body.

Taking the axial direction of the burner 10 as a vertical direction as an example, the airflow direction of the first air inlet pipe 111 and the second air inlet pipe 121 is a horizontal direction, so that the airflow input by the first air inlet pipe 111 and the second air inlet pipe 121 can be input in a side-rotating manner, and the airflow enters the inner annular air duct 12 without being turned violently, which is beneficial to reducing the wind resistance of the first air inlet pipe 111 and further improving the air inlet efficiency.

The utility model provides an embodiment of a gas cooking utensils on the basis of above-mentioned combustor.

The gas cooker comprises the burner according to any one of the embodiments.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A burner, comprising:

a burner body; and

2. The burner of claim 1, wherein the burner body comprises an air distributor, the fire cover is mounted on the air distributor, the inner flame stabilizing slot is formed between the fire cover and the air distributor, and the flow guide slot is arranged on the air distributor.

3. The burner of claim 2, wherein the flame cap includes a top wall and first inner and outer annular walls connected to the top wall;

the gas distribution disc comprises a bottom wall, and a second inner annular wall and a second outer annular wall which are connected with the bottom wall, and the top wall, the first outer annular wall, the second outer annular wall, the bottom wall, the second inner annular wall and the first inner annular wall enclose to form a gas cavity; the diversion trench is arranged on the second inner annular wall.

4. The burner of claim 3, wherein a first annular vertical wall is disposed at an end of the first inner annular wall away from the top wall, the first flame stabilizing hole is disposed in the first annular vertical wall, and a first step surface facing away from the top wall is formed between the first annular vertical wall and the first inner annular wall;

5. The burner of claim 4, wherein one end of the first flame stabilizing hole, which is far away from the gas chamber, is communicated with the flow guide groove;

6. The burner of claim 4, wherein a second annular vertical wall is arranged on an end surface of the second inner annular wall, which is far away from the bottom wall, the first annular vertical wall is arranged on the outer side of the second annular vertical wall in a surrounding manner, the inner flame stabilizing groove is formed between the first step surface and one end of the second annular vertical wall, which is far away from the second inner annular wall, and the diversion groove is formed between the second annular vertical wall and the first annular vertical wall;

7. The burner of claim 3, wherein the burner cap further comprises a first intermediate annular wall, the first intermediate annular wall being located between the first outer annular wall and the first inner annular wall and being connected to the top wall;

8. The burner of claim 7, wherein the top wall, the first inner annular wall, the first middle annular wall, and the first outer annular wall are integrally formed.

9. The burner of claim 7, wherein the first inner annular wall defines a central cavity;

10. The burner of any one of claims 7 to 9, wherein the burner body further comprises a burner, the burner comprising:

one end of the second air inlet pipe is communicated with the inner ring air channel, and a second air inlet is formed at the other end of the second air inlet pipe; the air flow direction formed by the first air inlet pipe and the second air inlet pipe is perpendicular to the axial direction of the furnace end body.

11. Gas hob, characterized in, that it comprises a burner according to any one of the claims 1 to 10.