Burners and gas stoves

Abstract

The present invention proposes a burner and a gas stove, wherein the burner includes a burner body; and a fire cover, wherein the fire cover is provided on the burner body, the fire cover and the burner body enclose a gas chamber, the fire cover is provided with a fire hole connected to the gas chamber, the fire cover is provided with a first flame stabilization hole connected to the gas chamber, an inner flame stabilization groove is formed between the fire cover and the burner body, the first flame stabilization hole is connected to the inner flame stabilization groove, and a guide groove for the liquid in the inner flame stabilization groove to flow away from the fire cover is formed between the fire cover and the end face of the burner body facing the fire cover. The present invention forms an inner flame stabilization groove by adopting a fire cover and the burner body; by providing a guide groove connected to the flame stabilization groove on the burner body, the liquid entering the flame stabilization groove is guided in a direction away from the fire cover, thereby avoiding the liquid from clogging the first flame stabilization hole, so that the burner has a stable flame stabilization airflow output.

Description

Technical Field

[0001] The present invention relates to the field of kitchen appliances, and in particular to a burner and a gas cooker. Background Art

[0002] When cooking on a gas stove, when liquid overflows from the pot, it can flow down the sides of the pot and drip onto the burner. Existing burners are typically equipped with flame-stabilizing holes to stabilize the flame. When grease in the liquid flows down the burner's surface, it tends to adhere to the burner's flame cap. Due to surface tension, the grease can easily clog the flame-stabilizing holes. Summary of the Invention

[0003] The main purpose of the present invention is to provide a burner and a gas cooker, aiming to improve the problem that the flame stabilizing holes of the existing burner are easily clogged.

[0004] To achieve the above-mentioned purpose, the present invention provides a fire cover, comprising:

[0005] Based on the above burner, the present invention proposes a burner comprising:

[0006] a burner body; and

[0007] A fire cover, wherein the fire cover is arranged on the burner body, the fire cover and the burner body enclose a gas chamber, the fire cover is provided with a fire hole connected to the gas chamber, the fire cover is provided with a first flame stabilizing hole connected to the gas chamber, an inner flame stabilizing groove is formed between the fire cover and the burner body, the first flame stabilizing hole is connected to the inner flame stabilizing groove, and a guide groove is formed between the fire cover and the end face of the burner body facing the fire cover on one side, for the liquid in the inner flame stabilizing groove to flow away from the fire cover.

[0008] 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 guide groove is provided on the gas distribution plate.

[0009] Optionally, the fire cover includes a top wall and a first inner annular wall and a first outer annular wall connected to the top wall;

[0010] The gas distribution plate includes a bottom wall and a second inner ring wall and a second outer ring wall connected to the bottom wall, and the top wall, the first outer ring wall, the second outer ring wall, the bottom wall, the second inner ring wall and the first inner ring wall enclose a gas cavity;

[0011] The inner flame stabilizing groove is formed between the end surfaces of the first inner ring wall and the second inner ring wall facing each other. The first flame stabilizing hole is provided on the first inner ring wall, and the guide groove is provided on the second inner ring wall.

[0012] Optionally, a first annular vertical wall is provided at one end of the first inner annular wall away from the top wall, the first flame stabilizing hole is provided 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;

[0013] The inner flame stabilizing groove is formed between the end surface of the second inner ring wall away from the bottom wall and the first step surface. The first annular vertical wall is arranged on the outer side of the second inner ring wall, and the guide groove is formed between the first annular vertical wall and the second inner ring wall.

[0014] Optionally, one end of the first flame stabilizing hole away from the gas chamber is connected to the guide groove;

[0015] And / or, the first inner ring wall is provided with an inner ring fire hole communicating with the gas chamber, and the first inner ring wall is provided with a second flame stabilizing hole communicating with the inner flame stabilizing groove and the inner ring fire hole.

[0016] Optionally, a second annular vertical wall is provided on an end surface of the second inner annular wall away from the bottom wall, the first annular vertical wall is provided on the outer side of the second annular vertical wall, the inner flame stabilizing groove is formed between the first step surface and an end of the second annular vertical wall away from the second inner annular wall, and the guide groove is formed between the second annular vertical wall and the first annular vertical wall;

[0017] The second annular vertical wall and the second inner annular wall form a second step surface facing away from the bottom wall, and one end of the first annular vertical wall away from the first inner annular wall is arranged in contact with the second step surface.

[0018] Optionally, the fire cover further comprises a first middle ring wall, wherein the first middle ring wall is located between the first outer ring wall and the first inner ring wall and is connected to the top wall;

[0019] The gas distribution plate also includes a second middle ring wall, which is located between the second outer ring wall and the second inner ring wall and is connected to the bottom wall. The end of the second middle ring wall away from the bottom wall is connected to the end of the first middle ring wall away from the top wall, so that the gas chamber is divided into an inner ring gas chamber and an outer ring gas chamber. The first inner ring wall is provided with an inner ring fire hole connected to the inner ring gas chamber, and the first outer ring wall is provided with an outer ring fire hole connected to the outer ring gas chamber.

[0020] Optionally, the top wall, the first inner ring wall, the first middle ring wall and the first outer ring wall are integrally arranged.

[0021] Optionally, the first inner ring wall is surrounded by a central cavity;

[0022] Wherein, the inner ring fire hole is arranged at one end away from the inner ring gas cavity toward the central cavity; and / or

[0023] The outer ring fire hole is arranged at one end away from the outer ring gas cavity toward the outer circumference of the first outer ring wall; and / or

[0024] A heat conducting surface for guiding the airflow in the central cavity toward the first outer ring wall is formed on a surface of the top wall on one side facing away from the gas cavity.

[0025] Optionally, the burner body further includes a burner head, and the burner head includes:

[0026] A burner body, the gas distribution plate is mounted on the burner body, the burner body is formed with an inner ring air duct connected to the inner ring gas cavity and an outer ring air duct connected to the outer ring gas cavity, the inner ring air duct and the outer ring air duct are annular channels, and the outer ring air duct is arranged on the outside of the inner ring air duct;

[0027] a first air inlet pipe, one end of which is connected to the outer ring air duct and the other end of which is formed with a first air inlet; and

[0028] The second air inlet pipe has one end connected to the inner ring air duct and the other end formed with a second air inlet. The airflow direction formed by the first air inlet pipe and the second air inlet pipe is perpendicular to the axial direction of the burner body.

[0029] Based on the above-mentioned burner, the present invention provides a gas cooker, which includes the above-mentioned burner.

[0030] The technical solution of the present invention forms an inner flame stabilizing groove by adopting a fire cover and a burner body, so that the flame stabilizing airflow ejected from the first flame stabilizing hole can enter the inner flame stabilizing groove, thereby achieving the effect of flame stabilization; by arranging a guide groove connected to the flame stabilizing groove on the burner body, the liquid entering the flame stabilizing groove is guided in a direction away from the fire cover so that the liquid cannot flow in the direction of the first flame stabilizing hole, thereby avoiding the liquid from clogging the first flame stabilizing hole, and thus the burner has a stable flame stabilizing airflow output. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0032] Figure 1 This is a schematic structural diagram of an embodiment of a burner of the present invention;

[0033] Figure 2 for Figure 1 A top view of

[0034] Figure 3 for Figure 2 Middle AA section view;

[0035] Figure 4 for Figure 3 A local enlarged view of the A1 part;

[0036] Figure 5 This is a structural diagram of an embodiment of a fire cover of the present invention;

[0037] Figure 6 This is a structural diagram of an embodiment of the internal structure of a fire cover of the present invention;

[0038] Figure 7 This is a structural diagram of an embodiment of the gas distribution plate and the burner in cooperation with each other according to the present invention;

[0039] Figure 8 for Figure 7 A top view of

[0040] Figure 9 This is a structural diagram of an embodiment of a burner of the present invention;

[0041] Figure 10 This is a schematic structural diagram of the first air intake pipe and the second air intake pipe of the present invention.

[0042] Description of Figure Numbers:

[0043] Label name Label name 10 stove head 11 Outer ring air duct 111 First intake pipe 12 Inner ring air duct 121 Second intake pipe 20 Gas distribution plate 21 Second outer ring wall 22 Second middle ring wall 23 Second inner ring wall 24 Second annular wall 25 Second step surface 26 bottom wall 300 Fire cover 30 Top wall 301 Thermal surface 31 First outer ring wall 32 Outer ring fire hole 33 First inner ring wall 34 First annular wall 35 The first flame stabilization hole 36 Central cavity 37 Inner ring fire hole 38 The second flame stabilization hole 39 First middle ring wall 40 Inner ring gas chamber 41 Outer ring gas cavity 50 Inner flame stabilization tank 60 diversion trough

[0044] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] See also Figures 1 to 4 , a burner comprises: a burner body; and a fire cover 300, wherein the fire cover 300 is covered on the burner body, and the fire cover 300 and the burner body enclose a gas chamber, a first flame stabilizing hole 35 communicating with the gas chamber is provided on the fire cover 300, an inner flame stabilizing groove 50 is formed between the fire cover 300 and the burner body, the first flame stabilizing hole 35 is connected to the inner flame stabilizing groove 50, and a guide groove 60 for liquid in the inner flame stabilizing groove 50 to flow away from the fire cover 300 is formed between the fire cover 300 and an end surface of the burner body facing the fire cover 300.

[0049] The burner body is used to mount 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 a fire hole connected to the gas chamber. The position of the fire hole can be selected and set according to the specific form of the burner, or can refer to the existing technology.

[0050] After the airflow enters the gas chamber formed by the burner body and the fire cover 300, part of the airflow is sprayed through the fire holes on the fire cover 300 to form a flame, and part of the airflow is output from the first flame stabilizing hole 35. The airflow is output to the outside of the fire cover 300 through the inner flame stabilizing groove 50 to share the gas load of the gas chamber, thereby improving the stability of the flame formed by the fire hole spraying of the fire cover 300, thereby achieving the effect of flame stabilization.

[0051] A gap exists between the fire cover 300 and the burner body, forming the inner flame stabilization groove 50. The inner flame stabilization groove 50 is connected to the first flame stabilization hole 35. The airflow output from the first flame stabilization hole 35 is output from the inner flame stabilization groove 50 to the exterior of the fire cover 300, thereby achieving the output of the flame stabilization airflow. The inner flame stabilization groove 50 is a gap provided between the facing end surfaces of the fire cover 300 and the burner body. This allows liquid to flow along the fire cover 300 toward the burner body, with some liquid flowing downward along the burner body and some liquid entering the inner flame stabilization groove 50.

[0052] The end face of the inner flame stabilizing groove 50 away from the fire cover 300 is its lower end face, and the guide groove 60 is connected to the lower end face of the inner flame stabilizing groove 50, so that the liquid entering the inner flame stabilizing groove 50 flows along the lower end face of the inner flame stabilizing groove 50 toward the guide groove 60. The liquid is transported to a direction away from the fire cover 300 via the guide groove 60, thereby making the liquid away from the first flame stabilizing hole 35. One end of the first flame stabilizing hole 35 connected to the combustion chamber is its air inlet end, and one end of the first flame stabilizing hole 35 connected to the flame stabilizing groove is its air outlet end. The air outlet end of the first flame stabilizing groove is not in the same plane as the lower end face of the inner flame stabilizing groove 50, so that the liquid entering the inner flame stabilizing groove 50 will not directly flow along the lower end face of the inner flame stabilizing groove 50 into the air outlet end of the first flame stabilizing hole 35.

[0053] By having the guide groove 60 guide the liquid entering the inner flame stabilization groove 50 away from the fire cover, the liquid entering the inner flame stabilization groove 50 can be discharged from the inner flame stabilization groove 50 in a timely manner under the action of gravity, and will not accumulate in the inner flame stabilization groove 50 and block the inner flame stabilization groove 50, thereby making the airflow output from the inner flame stabilization groove 50 more evenly distributed. Because the first flame stabilization hole 35 is connected to the inner flame stabilization groove 50, the airflow output from the first flame stabilization hole 35 needs to be discharged through the inner flame stabilization groove 50. The inner flame stabilization groove 50 serves as a channel for airflow output. After the liquid in the inner flame stabilization groove 50 is discharged, the airflow output from the first flame stabilization hole 35 is also relatively more stable.

[0054] Since the liquid in the inner flame stabilizing groove 50 can be discharged in a direction away from the fire cover, the liquid will not continue to flow toward the outlet end of the first flame stabilizing hole 35, thereby avoiding blockage of the liquid at the outlet end of the first flame stabilizing hole 35.

[0055] The guide groove 60 can be a through hole extending through the burner body, one end of which is connected to the end surface of the inner flame stabilizing groove 50 away from the fire cover, and the other end is connected to the outside of the burner body. The other end of the guide groove 60 can also be connected to the gas chamber. When manufacturing the burner, the fire cover 300 can be detachable from the burner body. In this case, the end of the guide groove 60 away from the inner flame stabilizing groove 50 can be a gap between the fire cover 300 and the burner body.

[0056] During the heating process of the burner, the soup overflowing from the pot easily flows along the bottom of the pot toward the middle of the burner. In this embodiment, a central cavity 36 is formed in the middle of the fire cover 300, and the inner flame stabilizing groove 50 is arranged toward the central cavity 36.

[0057] See also Figure 1 and Figure 3 In one embodiment of the present invention, the burner body includes a gas distribution plate 20, the flame cover 300 is mounted on the gas distribution plate 20, the inner flame stabilization groove 50 is formed between the flame cover 300 and the gas distribution plate 20, and the guide groove 60 is provided on the gas distribution plate 20. The gas distribution plate 20 is used to form a structure on the burner body for guiding airflow to the flame cover 300, so that the airflow input into the burner can be delivered to a preset position of the flame cover 300 along a preset path.

[0058] The gas distribution plate 20 is adapted to be matched with the fire cover 300. When the fire cover 300 is installed on the gas distribution plate 20, the fire cover 300 and the gas distribution plate 20 form a combustion chamber for accommodating gas. A gap is provided between the end surface of the fire cover 300 facing the gas distribution plate 20 and the end surface of the gas distribution plate 20 facing the fire cover 300. The gap serves as the inner flame stabilizing groove 50. The guide groove 60 is provided on the gas distribution plate 20. One end of the guide groove 60 is connected to the end surface of the inner flame stabilizing groove 50 away from the fire cover, and the other end of the guide groove 60 extends away from the fire cover, so that liquid in the inner flame stabilizing groove 50 can flow along the guide groove 60 in a direction away from the fire cover.

[0059] See also Figure 3 、 Figure 5 and Figure 6The fire cover 300 includes a top wall 30 and a first inner ring wall 33 and a first outer ring wall 31 connected to the top wall 30; the gas distribution plate 20 includes a bottom wall 26 and a second inner ring wall 23 and a second outer ring wall 21 connected to the bottom wall 26. The top wall 30, the first outer ring wall 31, the second outer ring wall 21, the bottom wall 26, the second inner ring wall 23 and the first inner ring wall 33 together form a gas chamber; the inner flame stabilizing groove 50 is formed between the facing end surfaces of the first inner ring wall 33 and the second inner ring wall 23, the first flame stabilizing hole 35 is provided on the first inner ring wall 33, and the guide groove 60 is provided on the second inner ring wall 23.

[0060] The first outer annular wall 31 is disposed outside the first inner annular wall 33. The first inner annular wall 33, the first outer annular wall 31, and the top wall 30 together form a cavity facing the gas distribution plate 20. The second outer annular wall 21 is disposed outside the second inner annular wall 23. The second outer annular wall 21, the bottom wall 26, and the second inner annular wall 23 together form a cavity facing the fire cover. The first inner annular wall 33 and the second inner annular wall 23 are adaptively connected, and the first outer annular wall 31 and the second outer annular wall 21 are adaptively connected. The top wall 30 and the bottom wall 26 are disposed opposite each other to form the gas chamber.

[0061] There is a gap 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 stabilizing groove 50 . The guide groove 60 is used to connect the end of the inner flame stabilizing groove 50 away from the top wall 30 .

[0062] 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 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 retaining 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 remaining liquid will enter the inner flame stabilization groove 50.

[0063] The inner diameters of the first inner annular wall 33 and the second inner annular wall 23 can be selected as needed or by reference to the prior art.

[0064] Optionally in this embodiment, a first annular vertical wall 34 is provided at one end of the first inner annular wall 33 away from the top wall 30, and the first flame stabilizing hole 35 is provided 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 the side of the second inner annular wall 23 away from the bottom wall 26 and the first step surface, the first annular vertical wall 34 is arranged on the outer side of the second inner annular wall 23, and the guide groove 60 is formed between the first annular vertical wall 34 and the second inner annular wall 23.

[0065] When the liquid flows from the fire cover toward the gas distribution plate 20, the liquid will gradually flow away from the fire cover on the end surface of the inner flame stabilizing groove 50 away from the fire cover. When the liquid flows into the guide groove 60, it can flow along the guide groove 60 toward the gas chamber.

[0066] In order to keep the fire cover 300 and the gas distribution plate 20 stable, a connecting structure can be set between the fire cover 300 and the gas distribution plate 20, or the first outer ring wall 31 of the fire cover 300 and the second outer ring wall 21 of the gas distribution plate 20 can be riveted to each other, or other connection methods can be selected to keep the fire cover 300 and the gas distribution plate 20 in a preset state.

[0067] In this embodiment, the end of the first flame stabilization hole 35 away from the combustion chamber optionally communicates with the guide groove 60. The first flame stabilization hole 35 may be arranged perpendicular to the axial direction of the burner body or as an inclined hole. The gas outlet end of the first flame stabilization 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 stabilization hole 35 is blocked by the second inner annular wall 23 and redirected toward the inner flame stabilization groove 50.

[0068] The inner flame-stabilizing groove 50 and the guide groove 60 are interconnected. When airflow is output from the first flame-stabilizing hole 35, the airflow acts on the surface of the second inner annular wall 23, so that liquid flowing along the end surface of the inner flame-stabilizing groove 50 away from the top wall 30 and the outer surface of the second inner annular wall 23 is impacted by the airflow, so that the liquid can only flow along the outer surface of the second inner annular wall 23 under the action of the airflow. Because the first flame-stabilizing hole 35 is provided on the first annular vertical wall 34, a gap is provided between the first annular vertical wall 34 and the second inner annular wall 23. During liquid flow, the liquid will not directly adhere to the outer surface of the first annular vertical wall 34, and thus cannot adhere to the first flame-stabilizing hole 35, further preventing the first flame-stabilizing hole 35 from being blocked.

[0069] See also Figure 4In this embodiment, optionally, a second annular vertical wall 24 is provided on the end surface of the second inner annular wall 23 away from the bottom wall 26. The first annular vertical wall 34 is disposed around the outer side of the second annular vertical wall 24. The inner flame stabilizing groove 50 is formed between the first stepped surface and the end of the second annular vertical wall 24 away from the second inner annular wall 23. The guide groove 60 is formed between the second annular vertical wall 24 and the first annular vertical wall 34. A second stepped surface 25 facing away from the bottom wall 26 is formed between the second annular vertical wall 24 and the second inner annular wall 23. The end of the first annular vertical wall 34 away from the first inner annular wall 33 is disposed in contact with the second stepped surface 25.

[0070] The second step surface 25 is used to form a surface that supports the first annular vertical wall 34. There is a gap 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 guide groove 60. An inner flame stabilizing groove 50 is formed between the second annular vertical wall 24 and the first step surface. The inner flame stabilizing groove 50 connects the gap between the first annular vertical wall 34 and the second annular vertical wall 24, that is, connects the guide groove 60. By arranging the second annular vertical wall 24 to cooperate 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 to keep the fire cover stable.

[0071] When liquid flows along the end surface of the inner flame stabilizing groove 50 away from the top wall 30 toward the interior of the guide groove 60, the first annular wall 34 abuts against the second stepped surface 25, forming a cavity for accumulating liquid between the first annular wall 34 and the second annular wall 24, thereby reducing the flow of liquid into the combustion chamber. When the flame cover is removed from the gas distributor 20, the gas distributor 20 can be easily cleaned.

[0072] See also Figure 5 and Figure 6 In one embodiment of the present invention, the first inner ring wall 33 is provided with an inner ring fire hole 37 communicating with the gas chamber. A second flame stabilization hole 38 communicating with the inner flame stabilization groove 50 and the inner ring fire hole 37 is also provided on the first inner ring wall 33. The second flame stabilization hole 38 is used to guide part of the airflow within the inner ring fire hole 37 to the inner flame stabilization groove 50, thereby sharing the gas load of the inner ring fire hole 37 and reducing the flow rate of the airflow ejected from the inner ring fire hole 37, thereby achieving a flame stabilization effect.

[0073] The end of the second flame stabilization hole 38 away from the inner ring fire hole 37 can be connected to the end face of the inner flame stabilization groove 50 close to the top wall 30. The second flame stabilization hole 38 can also be connected to the connecting portion between the first annular vertical wall 34 and the inner flame stabilization groove 50 to reduce the impact on the airflow output from the first flame stabilization hole 35. When the airflow output from the second flame stabilization hole 38 acts on the end face of the inner flame stabilization groove 50 away from the fire cover, it can generate resistance to the liquid, preventing the liquid on the end face of the inner flame stabilization groove 50 away from the top wall 30 from flowing to the outer surface of the first annular vertical wall 34.

[0074] See also Figure 3 and Figure 6 In one embodiment of the present invention, the fire cover 300 further includes a first middle ring wall 39, which is located between the first outer ring wall 31 and the first inner ring wall 33 and connected to the top wall 30; the gas distribution plate 20 further includes a second middle ring wall 22, which is located between the second outer ring wall 21 and the second inner ring wall 23 and connected to the bottom wall 26, and the end of the second middle ring wall 22 away from the bottom wall 26 is connected to the end of the first middle ring wall 39 away from the top wall 30, so that the gas chamber is divided into an inner ring gas chamber 40 and an outer ring gas chamber 41, the first inner ring wall 33 is provided with an inner ring fire hole 37 connected to the inner ring gas chamber 40, and the first outer ring wall 31 is provided with an outer ring fire hole 32 connected to the outer ring gas chamber 41. The first middle ring wall 39 and the second middle ring wall 22 are adapted to be arranged so that when the fire cover 300 is installed on the gas distribution plate 20 , the first middle ring wall 39 and the second middle ring wall 22 are connected.

[0075] The first inner ring wall 33, the first middle ring wall 39, and the first outer ring wall 31 are all located on the same side of the top wall 30. The first inner ring wall 33, the first middle ring wall 39, and the first outer ring wall 31 are arranged from the inside out, forming an annular cavity between the first inner ring wall 33 and the first middle ring wall 39, and an annular cavity between the first middle ring wall 39 and the first outer ring wall 31. The inner ring fire hole 37 connects the exterior of the fire cover 300 with the inner ring gas cavity 40, and air is ejected to the exterior of the first inner ring wall 33 through the inner ring fire hole 37. An annular cavity is formed between the first middle ring wall 39, the first outer ring wall 31, and the top wall 30. The outer ring fire hole 32 connects the exterior of the fire cover 300 with the outer ring gas cavity 41, and air is ejected to the exterior of the first outer ring wall 31 through the outer ring fire hole 32.

[0076] The top wall 30 is one end surface of the fire cover 300, serving as the surface of the fire cover 300 facing the bottom of the cookware. The top wall 30 simultaneously connects the first inner ring wall 33, the first middle ring wall 39, and the first outer ring wall 31, forming a monolithic structure for the fire cover 300. 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 exists between the top wall 30 and the first inner ring wall 33, the first middle ring wall 39, or the first outer ring wall 31. From the outside of the fire cover 300, only the inner ring fire holes 37, which serve as a passageway connecting to the inner ring gas chamber 40, and the outer ring fire holes 32, which serve as a passageway connecting to the outer ring gas chamber 41, can be seen.

[0077] Optionally, in this embodiment, 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.

[0078] By integrally forming the top wall 30 with the first inner annular wall 33 and the first outer annular wall 31, the fire cover 300 does not require secondary assembly, making it easy to install. 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 cover 300 has no gaps. During use of the fire cover 300, spilled soup from the pot will not adhere to the connection between the top wall 30 and the first inner annular wall 33 or the first outer annular wall 31, making it easier to clean.

[0079] The inner ring fire hole 37 is used to form a channel on the first inner ring wall 33 to guide the airflow of the inner ring gas cavity 40 to the outside of the fire cover 300, and the outer ring fire hole 32 is used to form a channel on the first outer ring wall 31 to guide the airflow of the outer ring gas cavity 41 to the outside of the fire cover 300. When the existing combined fire cover 300 is assembled, it is easy to be affected by the operator's proficiency and cause the fire cover 300 to be misaligned. In this embodiment, since the top wall 30 forms an integral structure with the first inner ring wall 33, the first outer ring wall 31 and the first middle ring wall 39, the stability of the fire cover 300 can be improved, so that the inner ring fire hole 37 and the outer ring fire hole 32 can always be maintained in the preset position, thereby preventing the inner ring fire hole 37 or the outer ring fire hole 32 from being misaligned. When the fire cover 300 is in use, the flame ejected from the fire cover 300 is relatively stable, which helps to maintain a good heating effect and improve the user experience.

[0080] By adopting an integrated design, the shape of the fire cover 300 is relatively fixed, and the positions of the inner ring fire holes 37 and the outer ring fire holes 32 remain constant, allowing the gas flow field inside and around the fire cover 300 to remain in a preset state. This in turn maintains the combustion efficiency of the fire cover 300 at a preset state, further improving the utilization efficiency of the gas. Furthermore, since the flow field remains stable, it facilitates coordination with other functional components, improving the adaptability of the fire cover 300.

[0081] Optionally, in this embodiment, a central cavity 36 is formed around the first inner ring wall 33, and the inner ring fire hole 37 is arranged toward the central cavity 36 away from one end of the inner ring gas cavity 40. By arranging the inner ring fire hole 37 along the circumference of the first inner ring wall 33, the airflow can be concentratedly sprayed toward the central cavity 36. In this embodiment, the airflow ejected from the inner ring fire hole 37 is sprayed in an oblique upward direction toward the upper middle part of the central cavity 36. When the fire cover 300 is in use, a heat concentration area is formed in the central cavity 36, so that the heat can be concentrated on the bottom of the pot. When cooking a small amount of food, the heat can be concentrated on the area where the food is concentrated, thereby improving the cooking efficiency.

[0082] Since the inner ring fire holes 37 can form an effect of concentrating heating on a small area at the bottom of the cookware, the fire cover 300 can concentrate the combustion of gas above the central cavity 36 when using a low fire or a very low fire, thereby improving the utilization efficiency of the gas.

[0083] During the use of the fire cover 300, when soup overflows during cooking, since the inner ring fire hole 37 is arranged on the circumference of the first inner ring wall 33, the inner ring fire hole 37 is opened toward the central cavity 36, which can prevent soup from entering the inner ring fire hole 37 and thus prevent the inner ring fire hole 37 from being blocked.

[0084] In another embodiment of the present invention, the outer ring fire holes 32 are disposed at one end away from the outer ring combustion chamber 41, toward the outer periphery of the first outer ring wall 31. The outer ring fire holes 32 form an airflow channel that guides airflow toward the exterior of the first outer ring wall 31. During use of the fire cover 300, this prevents soup from entering the outer ring fire holes 32, thereby preventing clogging of the outer ring fire holes 32.

[0085] When the inner ring fire holes 37 arranged toward the central cavity 36 cooperate with the first outer ring fire holes 32 arranged toward the outer periphery of the outer ring wall, the inner ring fire holes 37 can be used to spray heat to the center of the bottom of the pot, and the outer ring fire holes 32 can be used to spray heat to the bottom edge of the pot, so that the heating of the pot is more uniform, which helps to improve cooking efficiency.

[0086] Because the inner ring fire holes 37 spray heat toward the central cavity 36, and the outer ring fire holes 32 spray heat toward the periphery of the fire cover 300, a stable flow field is formed around the periphery of the fire cover 300, creating a uniform heating area within the fire cover 300 and achieving uniform heating. This uniform heating area facilitates coordination with other functional components to improve gas utilization efficiency. Because the inner ring fire holes 37 and the outer ring fire holes 32 create a relatively stable airflow field, the fire cover 300 exhibits improved flame stabilization.

[0087] The inner ring fire holes 37 are evenly spaced along the circumference of the first inner ring wall 33, and the outer ring fire holes 32 are spaced along the circumference of the first outer ring wall 31, ensuring that the injection and combustion positions of the inner and outer ring fire holes 37 and 32 remain relatively constant. When the user reinstalls the fire cover 300 after cleaning, the positions of the inner and outer ring fire holes 37 and 32 remain relatively constant, thereby maintaining a consistent combustion state. This reduces the problem of unstable combustion caused by assembly that does not meet preset standards, thereby reducing gas loss.

[0088] In one embodiment of the present invention, the first inner annular wall 33 defines a central cavity 36. A heat-conducting surface 301 is formed on the side of the top wall 30 facing away from the combustion chamber, for directing airflow within the central cavity 36 toward the first outer annular wall 31. The flames ejected from the inner annular flame holes 37 are concentrated at the center of the bottom of the cookware, while heat radiates along the heat-conducting surface 301 toward the periphery of the fire cover 300, achieving uniform heating of the bottom of the cookware.

[0089] In one embodiment of the present invention, a third flame stabilization hole is provided on the first outer ring wall 31, connecting the exterior of the first outer ring wall 31 and the outer ring fire hole 32. The third flame stabilization hole is used to reduce the pressure of the gas in the outer ring fire hole 32, thereby preventing the flame formed by the outer ring fire hole 32 from causing flame separation.

[0090] See also Figure 7 and Figure 8 In one embodiment of the present invention, the burner further includes a burner head 10, which comprises a burner head body, the gas distribution plate 20 being mounted on the burner head body, and the burner head body being formed with an inner ring air duct 12 communicating with the inner ring gas chamber 40 and an outer ring air duct 11 communicating with the outer ring gas chamber 41. Both the outer ring air duct 11 and the inner ring air duct 12 are annular air ducts. The burner head 10 is configured to form a channel for delivering gas to the fire cover 300, allowing gas to be delivered along a predetermined channel to the inner ring gas chamber 40 and the outer ring gas chamber 41.

[0091] See also Figure 9and Figure 10 In this embodiment, the burner head 10 optionally further includes: a first air inlet pipe 111, one end of which is connected to the outer ring 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 connected to 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 to input gas into the burner head 10 for supplying gas to the inner ring flame holes 37 and the outer ring flame holes 32, thereby enabling independent adjustment of the inner ring flame formed by the inner ring flame holes 37 or the outer ring flame formed by the outer ring flame holes 32.

[0092] Optionally, in this embodiment, the airflow direction formed by the first air inlet pipe 111 and the second air inlet pipe 121 is perpendicular to the axial direction of the burner body.

[0093] Taking the axial direction of the burner head 10 as an example, the airflow direction of the first air inlet pipe 111 and the second air inlet pipe 121 is horizontal, 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 rotation, so that the airflow does not need to make a sharp turn to enter the inner ring air duct 12, which helps to reduce the wind resistance of the first air inlet pipe 111 and thereby improve the air intake efficiency.

[0094] Based on the above-mentioned burner, the present invention provides an embodiment of a gas cooker.

[0095] The gas cooker includes the burner as described in any of the above embodiments.

[0096] The above descriptions are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A burner, characterized in that: include: Burner body, including gas distribution plate; as well as and a tube connecting the discharging opening of the second end of the burner to the fuel tank, the tube having a check valve in it at the pump end, and the tube which connects the fuel tank to the fuel tank is closed by the hook portion. The first inner ring wall is provided with a first annular vertical wall at one end away from the top wall, the first flame stabilizing hole is provided 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 ring wall; the inner flame stabilizing groove is formed between the end surface of the second inner ring wall on one side away from the bottom wall and the first step surface, the first annular vertical wall is arranged on the outer side of the second inner ring wall, and the guide groove is formed between the first annular vertical wall and the second inner ring wall; the end surface of the inner flame stabilizing groove on the side away from the fire cover is its lower end surface, and the outlet end of the first flame stabilizing hole and the lower end surface of the inner flame stabilizing groove are not on the same plane.

2. The burner according to claim 1, wherein One end of the first flame stabilizing hole away from the gas chamber is connected to the guide groove; And / or, the first inner ring wall is provided with an inner ring fire hole connected to the gas cavity, and the first inner ring wall is provided with a second flame stabilizing hole connected to the inner flame stabilizing groove and the inner ring fire hole.

3. The burner according to claim 1, wherein A second annular vertical wall is provided on an end surface of the second inner annular wall away from the bottom wall. The first annular vertical wall is provided on the outer side of the second annular vertical wall. The inner flame stabilizing groove is formed between the first step surface and an end of the second annular vertical wall away from the second inner annular wall. The guide 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 facing away from the bottom wall, and one end of the first annular vertical wall away from the first inner annular wall is arranged in contact with the second step surface.

4. The burner according to claim 1, wherein The fire cover further includes a first middle ring wall, the first middle ring wall being located between the first outer ring wall and the first inner ring wall and connected to the top wall; The gas distribution plate also includes a second middle ring wall, which is located between the second outer ring wall and the second inner ring wall and is connected to the bottom wall. The end of the second middle ring wall away from the bottom wall is connected to the end of the first middle ring wall away from the top wall, so that the gas chamber is divided into an inner ring gas chamber and an outer ring gas chamber. The first inner ring wall is provided with an inner ring fire hole connected to the inner ring gas chamber, and the first outer ring wall is provided with an outer ring fire hole connected to the outer ring gas chamber.

5. The burner according to claim 4, characterized in that The top wall, the first inner ring wall, the first middle ring wall and the first outer ring wall are integrally arranged.

6. The burner according to claim 4, wherein The first inner ring wall is surrounded by the central cavity; Wherein, the inner ring fire hole is arranged at one end away from the inner ring gas cavity toward the central cavity; and / or The outer ring fire hole is arranged at one end away from the outer ring gas cavity toward the outer circumference of the first outer ring wall; and / or A heat conducting surface for guiding the airflow in the central cavity toward the first outer ring wall is formed on a surface of the top wall on one side facing away from the gas cavity.

7. The burner according to any one of claims 4 to 6, characterized in that The burner body further comprises a burner head, which comprises: A burner body, the gas distribution plate is mounted on the burner body, the burner body is formed with an inner ring air duct connected to the inner ring gas cavity and an outer ring air duct connected to the outer ring gas cavity, the inner ring air duct and the outer ring air duct are annular channels, and the outer ring air duct is arranged on the outside of the inner ring air duct; a first air inlet pipe, one end of which is connected to the outer ring air duct and the other end of which is formed with a first air inlet; and The second air inlet pipe has one end connected to the inner ring air duct and the other end formed with a second air inlet. The airflow direction formed by the first air inlet pipe and the second air inlet pipe is perpendicular to the axial direction of the burner body.

8. A gas cooker, characterized in that: The gas cooker comprises the burner according to any one of claims 1 to 7.

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