Inner ring fire cover, burner and gas stove

Abstract

The application discloses an inner ring fire cover, a burner and a gas stove. The inner ring fire cover comprises a top cover, an outer ring wall, an inner ring wall, and a connecting plate. The top cover is arranged on the outer ring wall. The inner ring wall is arranged inside the outer ring wall, and a center cavity is formed in the middle of the inner ring wall. The connecting plate is arranged between the inner ring wall and the outer ring wall. One end of the connecting plate is connected to one end of the inner ring wall close to the top cover, and the other end of the connecting plate is connected to the outer ring wall. The top cover, the outer ring wall and the connecting plate enclose to form a first inner ring gas cavity which is communicated with the center cavity. The top cover is provided with a first inner ring fire hole which is communicated with the first inner ring gas cavity. The outer ring wall is provided with a second inner ring fire hole which is communicated with the first inner ring gas cavity. The outer ring wall, the connecting plate and the inner ring wall enclose to form a second inner ring gas cavity. The outer ring wall is provided with a third inner ring fire hole which is communicated with the second inner ring gas cavity.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliances, and in particular to an inner ring burner cap, a burner, and a gas stove. Background Technology

[0002] In a three-ring burner, the inner ring burner cap is used to form the central flame and the middle ring flame. To ensure a sufficient gas supply to the middle ring flame, the gas load on the inner ring burner cap is maintained at a relatively high level. When the burner is in a very low flame combustion state, the gas load on the central flame is high, making the central flame unstable and prone to flame lift-off. Reducing the gas load on the central flame, on the other hand, affects the gas supply to the middle ring flame. Summary of the Invention

[0003] The main objective of this invention is to propose an inner ring burner, a burner, and a gas stove, which aims to improve the problem of high gas load in the extremely small flame combustion state of existing inner ring burners.

[0004] To achieve the above objectives, the present invention provides an inner ring flame cap, comprising:

[0005] Top cover;

[0006] The outer ring wall, and the top cover is disposed on the outer ring wall;

[0007] An inner ring wall is disposed inside the outer ring wall, and a central cavity is formed in the middle of the inner ring wall; and

[0008] A connecting plate is disposed between the inner ring wall and the outer ring wall. One end of the connecting plate is connected to the end of the inner ring wall near the top cover, and the other end of the connecting plate is connected to the outer ring wall. The top cover, the outer ring wall, and the connecting plate enclose a first inner ring gas chamber that communicates with the central cavity. The top cover is provided with a first inner ring flame hole that communicates with the first inner ring gas chamber. The outer ring wall is provided with a second inner ring flame hole that communicates with the first inner ring gas chamber. The outer ring wall, the connecting plate, and the inner ring wall enclose a second inner ring gas chamber. The outer ring wall is provided with a third inner ring flame hole that communicates with the second inner ring gas chamber.

[0009] Optionally, the outer ring wall is provided with a flame stabilizing hole that connects to the second inner ring gas chamber.

[0010] Optionally, the outer periphery of the outer ring wall is provided with a flame stabilizing groove;

[0011] The end of the flame stabilizing hole away from the second inner ring gas chamber is connected to the flame stabilizing groove, and / or the flame stabilizing groove is provided with a through hole connecting to the interior of the third inner ring flame hole.

[0012] Optionally, the inner ring fire cap further includes:

[0013] A fixing mesh is installed on the side of the top cover facing away from the first inner ring gas chamber; and

[0014] An infrared combustion plate is installed between the fixed net and the top cover.

[0015] Optionally, the outer ring wall has a stepped surface at one end near the top cover, and the outer periphery of the top cover is movably mounted on the stepped surface.

[0016] Optionally, a guide wall is provided between the inner ring wall and the connecting plate, one end of the guide wall is connected to the inner ring wall, and the other end is connected to the end of the connecting plate away from the outer ring wall;

[0017] The guide wall has a first guide slope on the side surface facing the first inner ring gas chamber for guiding the airflow of the central chamber toward the second inner ring flame hole; and / or, the guide wall has a second guide slope on the side surface facing the second inner ring gas chamber for guiding the airflow of the second inner ring gas chamber toward the third inner ring flame hole.

[0018] Based on the aforementioned inner ring burner cap, this invention proposes a burner comprising an inner ring burner cap and a gas distribution plate as described above, wherein the gas distribution plate comprises:

[0019] An outer disc body, the outer disc body forming an outer annular combustion chamber, the outer disc body being provided with an outer annular flame cap, the outer annular flame cap being provided with an outer annular flame hole communicating with the outer annular combustion chamber; and

[0020] The inner disc body has an inner ring flame cap disposed on it, and an outer disc body is disposed around the outside of the inner disc body. The inner disc body has a first air inlet and a second air inlet. The second inner ring gas chamber is connected to the first air inlet, the central cavity is connected to the second air inlet, and the outer ring gas chamber is connected to the first air inlet.

[0021] Optionally, the inner disc body is hollow inside, and the inner disc body is provided with an annular partition. A first transition gas chamber is formed between the annular partition and the inner wall of the inner disc body. The inner disc body is provided with a through hole that connects the first transition gas chamber and the second inner annular gas chamber of the inner annular burner cap. The first air inlet is formed on the inner disc body and communicates with the first transition gas chamber. A second transition gas chamber for connecting the second air inlet and the central cavity is formed inside the annular partition.

[0022] Optionally, the gas distribution plate further includes:

[0023] A support portion is provided between the inner disk and the outer disk, and an airflow channel connecting the first transition gas chamber and the outer ring gas chamber is formed in the support portion;

[0024] Optionally, the support portions are multiple portions arranged at intervals, and a secondary air inlet is formed between adjacent support portions for supplying secondary air to the inner ring fire cover.

[0025] Optionally, one of the inner disc body and the outer ring wall of the inner ring fire cover is provided with a protrusion, and the other is provided with a limiting groove, wherein the protrusion is embedded in the limiting groove.

[0026] Based on the aforementioned inner ring burner cap, this invention proposes a gas stove, which includes the burner described above.

[0027] The technical solution of this invention achieves two gas inputs to the inner ring burner by forming independent first and second inner ring gas chambers inside the inner ring burner; by connecting the first and second inner ring burner holes to the first inner ring gas chamber, the second inner ring burner hole shares the gas load of the first inner ring burner hole, achieving stable combustion of the first inner ring burner hole in a very low flame state; by connecting the third inner ring burner hole to the second inner ring gas chamber, the middle ring flame formed by the third inner ring burner hole has an independent gas supply, thereby reducing the impact on the middle ring flame while adjusting the gas load of the first inner ring burner hole, and achieving independent adjustment of the central flame and the middle ring flame. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the inner ring flame cap of the present invention;

[0030] Figure 2 for Figure 1 Schematic diagram of the internal structure of the inner ring flame cap;

[0031] Figure 3 This is a schematic diagram of an embodiment of the connection between the inner ring fire cover and the fixed net of the present invention;

[0032] Figure 4 for Figure 3 Schematic diagram of the internal structure of the inner ring flame cap;

[0033] Figure 5 This is a schematic diagram of the structure of an embodiment of the burner of the present invention;

[0034] Figure 6 for Figure 5Schematic diagram of the internal structure of the burner;

[0035] Figure 7 This is a schematic diagram of the structure of the gas distribution plate and the outer ring flame cap in the embodiment of the present invention;

[0036] Figure 8 for Figure 7 Top view;

[0037] Figure 9 for Figure 8 Sectional view along the AA direction.

[0038] Explanation of icon numbers:

[0039] label name label name 10 Inner ring fire cap 11 Top cover 111 First inner ring fire hole 112 Fixed net 113 Infrared combustion plate 12 Inner ring wall 121 Central cavity 13 outer ring wall 131 Second inner ring fire hole 132 Third inner ring fire hole 133 Flame Stabilizer 134 Flame Stabilizer 135 First inner ring gas chamber 136 Second inner ring gas chamber 137 Step surface 138 Limiting groove 14 Connecting plate 141 Guide wall 142 First guide slope 143 Second guide slope 20 Outer ring fire cap 21 Outer ring fire hole 30 Gas distribution plate 31 outer disc body 311 outer ring gas chamber 32 Support section 321 airflow channel 33 Inner disc 331 Annular partition 332 First transition gas chamber 333 Second transition gas chamber 334 Protrusion 335 Through hole 40 First air intake 50 Second air intake

[0040] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0043] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0044] Please see Figure 1 and Figure 2This invention proposes an inner ring flame cover, comprising: a top cover 11; an outer ring wall 13, the top cover 11 being disposed on the outer ring wall 13; an inner ring wall 12, disposed inside the outer ring wall 13, the inner ring wall 12 forming a central cavity 121 in its middle; and a connecting plate 14, disposed between the inner ring wall 12 and the outer ring wall 13, one end of the connecting plate 14 being connected to the end of the inner ring wall 12 near the top cover 11, and the other end of the connecting plate 14 being connected to the outer ring wall 13. The top cover 11 and the outer ring wall 13 are connected together. The 3 and the connecting plate 14 enclose and form a first inner ring gas chamber 135 that communicates with the central cavity 121. The top cover 11 is provided with a first inner ring flame hole 111 that communicates with the first inner ring gas chamber 135. The outer ring wall 13 is provided with a second inner ring flame hole 131 that communicates with the first inner ring gas chamber 135. The outer ring wall 13, the connecting plate 14 and the inner ring wall 12 enclose and form a second inner ring gas chamber 136. The outer ring wall 13 is provided with a third inner ring flame hole 132 that communicates with the second inner ring gas chamber 136.

[0045] A gap exists between the inner wall of the outer ring wall 13 and the outer wall of the inner ring wall 12. A connecting plate 14 is disposed inside the outer ring wall 13, with its outer periphery connected to the inner wall of the outer ring wall 13. One end of the connecting plate 14, away from the outer ring wall 13, is connected to the inner ring wall 12. This allows the connecting plate 14 to divide the internal chamber of the outer ring wall 13 into a first inner ring gas chamber 135 near the top cover 11 and a second inner ring gas chamber 136 away from the top cover 11. The first inner ring gas chamber 135 is connected to the outside of the inner ring burner cap through a central cavity 121 formed by the inner ring wall 12. The first inner ring gas chamber 135 and the second inner ring gas chamber 136 have independent gas input channels.

[0046] The first inner ring flame hole 111 is connected to the first inner ring gas chamber 135 to form a central flame, and the second inner ring flame hole 131 and the third inner ring flame hole 132 are respectively connected to the first inner ring gas chamber 135 and the second inner ring gas chamber 136 to form a middle ring flame.

[0047] Since the first inner ring flame hole 111 and the second inner ring flame hole 131 are connected to the first inner ring gas chamber 135, the gas input into the first inner ring gas chamber 135 is divided into two parts for output. The second inner ring flame hole 131 can share the gas load of the first inner ring flame hole 111, reducing the gas load of the first inner ring flame hole 111. This makes the central flame formed by the first inner ring flame hole 111 more stable, resulting in a smaller and more stable flame in low-fire combustion conditions, and preventing flame lift-off. Because the gas load of the first inner ring flame hole 111 can be relatively reduced, the first inner ring flame hole 111 can be made smaller, allowing it to form a smaller central flame. By reducing the gas load of the first inner ring flame hole 111, the length of the flame formed by the first inner ring flame hole 111 is reduced, allowing the outer flame of the flame formed by the first inner ring flame hole 111 to act more on the bottom surface of the cookware, thereby improving heating efficiency.

[0048] The second inner ring flame port 131 is located near the top cover 11. When the gas load of the first inner ring gas chamber 135 is reduced, the gas load of the second inner ring flame port 131 will also be relatively reduced, thereby reducing the flame near the center of the inner ring flame cap 10. Since the third inner ring flame port 132 has a completely independent airflow input from the second inner ring flame port 131, the flame formed by the third inner ring flame port 132 can be increased while reducing the flame formed by the second inner ring flame port 131, so that the central ring flame is maintained in a preset state, thereby improving the controllability of the flame formed by the inner ring flame cap 10.

[0049] When used for heating cookware, the central flame formed by the first inner ring flame hole 111 has higher stability, resulting in better heating performance. During the central flame's combustion, the heat generated radiates gradually from the bottom surface of the cookware towards its outer perimeter. Simultaneously, the combined effect with the central ring flame formed by the second and third inner ring flame holes 131 and 132 creates a relatively uniform heating surface on the bottom of the cookware, thus preventing uneven heating of the cookware's bottom.

[0050] When cooking small amounts of food, since the food is usually concentrated in the center of the pot, improving the stability of the central flame formed by the first inner ring flame hole 111 can achieve higher heating efficiency when heating small amounts of food. When heating small amounts of food, the flame can be adjusted to a very low setting, allowing the first inner ring flame hole 111 to form a stable flame, thereby improving the utilization rate of the gas.

[0051] Since the third inner ring flame port 132 is connected to the second inner ring gas chamber 136, the third inner ring flame port 132 can form a middle ring flame that is independent of the second inner ring flame port 131. When adjusting the gas load of the second inner ring gas chamber 136, there will be no interference with the first inner ring gas chamber 135. Therefore, when adjusting the gas load of the first inner ring flame port 111 and the second inner ring flame port 131, the third inner ring flame port 132 will not be affected.

[0052] When the inner ring burner cap 10 is in a low-flame combustion state, the gas load of the first inner ring gas chamber 135 is adjusted, and the first inner ring flame hole 111 and the second inner ring flame hole 131 share the gas load of the first inner ring gas chamber 135. Since the second inner ring flame hole 131 and the third inner ring flame hole 132 are both located on the outer ring wall 13, when the combustion state of the inner ring burner cap 10 is adjusted, causing a change in the gas load of the second inner ring flame hole 131, the gas load of the third inner ring flame hole 132 can be adjusted simultaneously. This allows the gas loads in the second inner ring flame hole 131 and the third inner ring flame hole 132 to be matched, thereby matching the flow rates of the airflow injected from the second inner ring flame hole 131 and the third inner ring flame hole 132. By adjusting the flow rate of the airflow injected from the third inner ring flame hole 132, the mutual interference between the airflows injected from the second inner ring flame hole 131 and the third inner ring flame hole 132 can be increased, thereby improving the stability of flame combustion.

[0053] Since the second inner ring gas chamber 136 and the third inner ring gas chamber are independent of each other and have different airflow input channels, when adjusting the central flame and middle ring flame formed by the inner ring flame cap 10, the intensity of the middle ring flame formed by the third inner ring flame hole 132 can be adjusted while keeping the central flame formed by the first inner ring flame hole 111 and the middle ring flame formed by the second inner ring flame hole 131 stable, thereby achieving a wider range of flame adjustment formed by the inner ring flame cap 10.

[0054] When manufacturing the inner ring burner cap 10, the inner ring wall 12, the outer ring wall 13, and the connecting plate 14 can be integrally formed. The second inner ring burner hole 131 and the third inner ring burner hole 132 can be distributed at intervals along the axial direction of the outer ring wall 13. The axial direction of the second inner ring burner hole 131 and the axial direction of the third inner ring burner hole 132 can be non-parallel, so that the airflow direction injected by the second inner ring burner hole 131 and the airflow direction injected by the third inner ring burner hole 132 have a certain angle. Under the interaction of airflows in different directions, a flame stabilization effect can be achieved, making the middle ring flame formed by the second inner ring burner hole 131 and the third inner ring burner hole more stable and avoiding flame lift-off; the interference of airflows in different directions allows the gas to mix fully with the air, thereby improving the gas utilization rate.

[0055] Please see Figure 2 In one embodiment of the present invention, a guide wall 141 is provided between the inner ring wall 12 and the connecting plate 14. One end of the guide wall 141 is connected to the inner ring wall 12, and the other end is connected to the end of the connecting plate 14 away from the outer ring wall 13. A first guide slope 142 is formed on the side surface of the guide wall 141 facing the first inner ring gas chamber 135 for guiding the airflow of the central chamber 121 toward the second inner ring flame hole 131.

[0056] The airflow entering the central cavity 121 flows partly from the center toward the first inner ring flame hole 111, and partly near the inner wall of the inner ring wall 12 flows along the central cavity 121 and the first guide slope 142 toward the second inner ring flame hole 131. This allows the gas delivered by the central cavity 121 to be gradually dispersed and output toward the first inner ring flame hole 111 and the second inner ring flame hole 131, thus avoiding the formation of vortices on the side of the top cover 11 facing the first inner ring gas chamber 135 during high-speed gas flow, and thus avoiding the problem of increased wind resistance on the side of the first inner ring flame hole 111 near the first inner ring gas chamber 135. By reducing the vortices on the side of the first inner ring flame hole 111 near the first inner ring gas chamber 135, the airflow from the first inner ring flame hole 111 can be output in a uniform and stable state, thereby avoiding the problem of unstable central flame caused by sudden changes in gas load in the first inner ring flame hole 111. Since the airflow can flow along the first guide slope 142 toward the second inner ring flame hole 131, the airflow can be naturally diverted, reducing the gas load on the first inner ring flame hole 111.

[0057] In another embodiment of the present invention, a second guiding slope 143 is formed on the side surface of the guide wall 141 facing the second inner ring gas chamber 136 for guiding the airflow of the second inner ring gas chamber 136 toward the third inner ring flame hole 132. The second guiding slope 143 is used to gradually guide the airflow flowing along the outer wall of the inner ring wall 12 toward the direction of the third inner ring flame hole 132, thereby avoiding vortices near the third inner ring flame hole 132 and reducing the wind resistance at the end of the third inner ring flame hole 132 near the second inner ring gas chamber 136.

[0058] To facilitate control of the combustion state of the gas injected from the first inner ring flame hole 111, a through hole 335 can be provided on the connecting plate 14 for inserting a thermocouple from the second inner ring gas chamber 136 into the top cover 11 inside the first inner ring gas chamber 135.

[0059] The inner ring burner cap 10 can be detachably mounted on the outer ring wall 13. The first inner ring burner hole 111 can be positioned close to the center of the top cover 11, so that the first inner ring burner hole 111 forms a concentrated heating range. The central cavity 121 can be positioned directly opposite the first inner ring burner hole 111, so that the gas supplied from the central cavity 121 to the first inner ring gas chamber 135 can act more on the first inner ring burner hole 111. Under the pressure distribution of the second inner ring burner hole 131, the first inner ring burner hole 111 has a more moderate gas load under the premise of sufficient gas supply, so as to have a more stable combustion state.

[0060] Please see Figure 2 In one embodiment of the present invention, the outer ring wall 13 is provided with a flame stabilizing hole 133 that communicates with the second inner ring combustion chamber 136. The flame stabilizing hole 133 and the third inner ring flame hole 132 have the same airflow source.

[0061] The flame stabilizing hole 133 can be used to share the gas load of the third inner ring flame hole 132, so that the gas flow injected by the third inner ring flame hole 132 can burn more stably.

[0062] When the flame stabilizing hole 133 is located between the second inner ring flame hole 131 and the third inner ring flame hole 132, the airflow generated by the flame stabilizing hole 133 can simultaneously act on the airflow generated by the second inner ring flame hole 131 and the third inner ring flame hole 132, thereby achieving the effect of stabilizing the flames generated by the second inner ring flame hole 131 and the third inner ring flame hole 132.

[0063] Since the flame stabilizing hole 133 is connected to the second inner ring flame hole 131, when adjusting the gas load of the first inner ring gas chamber 135 and correspondingly adjusting the gas load of the second inner ring gas chamber 136, the flow rate of the airflow formed by the flame stabilizing hole 133 can be adjusted synchronously, so that the flame stabilizing hole 133 can play a better flame stabilizing effect.

[0064] The axial direction of the flame stabilizing hole 133 may not be parallel to the axial direction of the third inner ring fire hole 132 or the second inner ring fire hole 131, so that the flow direction of the airflow formed by the flame stabilizing hole 133 is different from the flow direction of the airflow formed by the third inner ring fire hole 132 or the second inner ring fire hole 131, so that the airflows with different flow directions interact with each other, resulting in a better flame stabilizing effect. The flames formed by the second inner ring fire hole 131 and the third inner ring fire hole 132 are more stable.

[0065] To improve the flame stabilization effect, in this embodiment, optionally, a flame stabilizing groove 134 is provided on the outer periphery of the outer annular wall 13; the end of the flame stabilizing hole 133 away from the second inner annular gas chamber 136 is connected to the flame stabilizing groove 134. The flame stabilizing groove 134 can be arranged circumferentially along the outer periphery of the outer annular wall 13, and the flame stabilizing hole 133 is connected to the interior of the flame stabilizing groove 134, so that the airflow generated by the flame stabilizing hole 133 is dispersed and radiates to the outer periphery of the outer annular wall 13 under the action of the flame stabilizing groove 134. Under the action of the flame stabilizing groove 134, the airflow output from the flame stabilizing hole 133 can fully act on the second inner annular flame hole 131 and / or the third inner annular flame hole 132, so as to achieve a better flame stabilization effect.

[0066] In another embodiment of the present invention, the flame stabilizing groove 134 is provided with a through hole communicating with the interior of the third inner ring flame hole 132. Part of the airflow output from the third inner ring flame hole 132 is transported to the flame stabilizing groove 134 to reduce the gas load of the third inner ring flame hole 132 and make the flame formed by the third inner ring flame hole 132 more stable.

[0067] Please see Figure 3 and Figure 4 In one embodiment of the present invention, the inner ring flame cover 10 further includes: a fixing mesh 112, installed on the side of the top cover 11 facing away from the first inner ring gas chamber 135; and an infrared combustion plate 113, installed between the fixing mesh 112 and the top cover 11. The infrared combustion plate 113 is used to form an infrared combustion structure on the inner ring flame cover 10.

[0068] By employing infrared combustion, the combustion performance of the burner corresponding to the inner ring burner cap 10 can be improved, thereby increasing heating efficiency. The inner ring burner cap 10 also includes other functional components adapted to the infrared combustion plate 113, which can be referenced from existing technologies.

[0069] Optionally in this embodiment, the outer ring wall 13 has a stepped surface 137 at one end near the top cover 11, and the outer periphery of the top cover 11 is movably mounted on the stepped surface 137. The top cover 11 and the outer ring wall 13 are detachably mounted. The outer periphery of the top cover 11 may be provided with a stepped structure adapted to the stepped surface 137, so that the outer ring wall 13 can be used to limit the radial movement of the top cover 11.

[0070] When the infrared combustion plate 113 is provided, a groove with a shape consistent with the infrared combustion plate 113 can be provided on the side of the top cover 11 facing away from the first inner ring gas chamber 135. The infrared combustion plate 113 is embedded in the groove, and the movement of the infrared combustion plate 113 away from the top cover 11 is restricted by the fixing net 112. The fixing net 112 can be a steel mesh or other structure.

[0071] Based on the aforementioned inner ring burner cap 10, this invention proposes a burner comprising an inner ring burner cap 10 and a gas distribution plate 30 as described in any of the above embodiments. The gas distribution plate 30 comprises: an outer plate body 31, the outer plate body 31 forming an outer ring combustion chamber 311, an outer ring burner cap 20 provided on the outer plate body 31, the outer ring burner cap 20 having an outer ring flame hole 21 communicating with the outer ring combustion chamber 311; and an inner plate body 33, the inner ring burner cap 10 being disposed on the inner plate body 33, the outer plate body 31 being arranged around the outside of the inner plate body 33, the inner plate body 33 having a first air inlet 40 and a second air inlet 50, the second inner ring combustion chamber 136 communicating with the first air inlet 40, the central cavity 121 communicating with the second air inlet 50, and the outer ring combustion chamber 311 communicating with the first air inlet 40.

[0072] The gas distributor 30 has two independent air intake channels: a first air inlet 40 and a second air inlet 50. The second inner ring gas chamber 136 and the second inner ring gas chamber 136 are two independent chambers within the gas distributor 30.

[0073] The airflow entering the air distribution plate 30 from the first air inlet 40 is used to supply air to the third inner ring flame hole 132 of the inner ring flame cap 10, and the airflow entering the air distribution plate 30 from the second air inlet 50 is used to supply air to the first inner ring flame hole 111 and the second inner ring flame hole 131.

[0074] Since the first air inlet 40 and the second air inlet 50 are independent of each other, the combustion state of the burner can be adjusted by adjusting the gas load of the first air inlet 40 and the second air inlet 50 when the burner is in normal combustion state. The gas input from the second air inlet 50 into the central cavity 121 is divided into two parts after entering the first inner ring gas cavity 135. The second inner ring flame hole 131 shares the gas load of the first inner ring flame hole 111, making the flame formed by the first inner ring flame hole 111 relatively stable, thereby forming a central ring flame that burns stably in the middle of the burner.

[0075] When the first air inlet 40 inputs airflow into the second inner ring combustion chamber 136, it does not affect the airflow of the second air inlet 50. This allows the third inner ring flame hole 132 to be adjusted in accordance with the first inner ring flame hole 111 and the second inner ring flame hole 131, so as to achieve a stable combustion state of the burner.

[0076] The airflow input from the first air inlet 40 is simultaneously delivered to the outer ring flame hole 21 and the third inner ring flame hole 132. When the inner ring flame cap 10 is provided with the flame stabilizing hole 133, the airflow input from the first air inlet 40 is simultaneously delivered to the flame stabilizing hole 133.

[0077] Because the outer ring flame hole 21 can be adjusted synchronously with the third inner ring flame hole 132, the burner can achieve a wider range of adjustment. When the combustion state of the first inner ring flame hole 111 changes, the third inner ring flame hole 132 and the outer ring flame hole 21 can be adjusted synchronously to achieve different combustion states such as central flame, middle ring flame, and outer ring flame when needed.

[0078] The outer ring flame hole 21 can be used to share the gas load of the third inner ring flame hole 132, so that the gas load of the third inner ring flame hole 132 can be made relatively smaller, and the flame formed by the third inner ring flame hole 132 can play an auxiliary role in the combustion of the second inner ring flame hole 131. When the burner is in a low flame or very low flame combustion state, the central flame and middle ring flame formed by the inner ring flame cap 10 can be made smaller accordingly, maintaining stable combustion.

[0079] Please see Figures 6 to 9 In one embodiment of the present invention, the inner disc body 33 is hollow inside, the inner ring flame cap 10 is mounted on the inner disc body 33, the inner disc body 33 is provided with an annular partition 331, a first transition gas chamber 332 is formed between the annular partition 331 and the inner wall of the inner disc body 33, the inner disc body 33 is provided with a through hole 335 connecting the first transition gas chamber 332 and the second inner ring gas chamber 136 of the inner ring flame cap 10, the first air inlet 40 is formed on the inner disc body 33 and communicates with the first transition gas chamber 332, and a second transition gas chamber 333 for connecting the second air inlet 50 and the central cavity 121 is formed inside the annular partition 331.

[0080] The outer disc 31 and the inner disc 33 are connected to each other so that the airflow of the first transition gas chamber 332 can enter the outer ring gas chamber 311.

[0081] The annular partition 331 is hollow to form the second transition gas chamber 333. The second transition gas chamber 333 connects the central cavity 121 of the inner ring burner cap 10 and the second air inlet 50 to supply gas to the first inner ring gas chamber 135. The end of the annular partition 331 away from the second air inlet 50 is connected to the inner disc body and communicates with the first inner ring gas chamber. The first inner ring gas chamber 135 is an annular cavity formed between the annular partition 331 and the inner wall of the inner disc body 33.

[0082] Please see Figure 6 By forming the first inner ring gas chamber 135, the gas input from the first air inlet 40 can be evenly distributed within the first inner ring gas chamber 135, allowing the airflow to be dispersedly delivered to the second inner ring gas chamber 136 and the outer ring gas chamber 311. The first inner ring gas chamber 135 can be used to form a stable gas path, ensuring uniform airflow distribution in the first inner ring gas chamber 135 and the outer ring gas chamber 311, and adapting to the corresponding third inner ring flame port 132 and the outer ring flame port 21.

[0083] Please see Figure 6 and Figure 7 To facilitate the connection between the inner ring flame cap 10 and the inner disc body 33, in this embodiment, optionally, one of the outer ring wall 13 of the inner disc body 33 and the inner ring flame cap 10 is provided with a protrusion 334, and the other is provided with a limiting groove 138, with the protrusion 334 embedded in the limiting groove 138. The protrusion 334 and the limiting groove 138 cooperate with each other to restrict the radial movement of the inner ring flame cap 10, thereby improving the stability of the inner ring flame cap 10. When the protrusion 334 engages with the limiting groove 138, the inner disc 33, the outer ring wall 13, the connecting plate 14, and the inner ring wall 12 form the second inner ring gas chamber 136. The through hole 335 on the inner disc 33, which connects the first transition gas chamber 332 and the second inner ring gas chamber 136, is the air inlet of the second inner ring gas chamber 136. The third inner ring flame hole 132 and the flame stabilizing hole 133 are the air outlets of the second inner ring gas chamber 136.

[0084] Please see Figure 7 and Figure 9 Both the first air inlet 40 and the second air inlet 50 can face the same side of the inner disc 33, and the through hole 335 connecting the first transition gas chamber 332 and the second inner ring gas chamber 136 can be provided on the wall surface of the inner disc 33 at the end away from the first air inlet 40.

[0085] Please see Figure 8Since the first transition gas chamber 332 is an annular chamber, the through hole 335 connecting the first transition gas chamber 332 and the second inner annular gas chamber 136 can correspond to the first transition gas chamber 332 and be distributed in an annular shape, so that the gas in the first transition gas chamber 332 can be evenly delivered to the second inner annular gas chamber 136, so that the gas load of the third inner annular flame hole 132 is consistent and the flame formed by its injection is more stable.

[0086] To facilitate the connection between the inner disc 33 and the outer disc 31, in this embodiment, the gas distribution plate 30 may optionally include: a support portion 32 disposed between the inner disc 33 and the outer disc 31, wherein an airflow channel 321 is formed within the support portion 32, connecting the first transition gas chamber 332 and the outer ring gas chamber 311; a gap exists between the inner disc 33 and the outer disc 31, and the support portion 32 is disposed within the gap for connecting the inner disc 33 and the outer disc 31.

[0087] By setting the support part 32, a certain distance is maintained between the middle ring flame formed by the inner ring flame cap 10 on the inner plate 33 and the outer ring flame formed by the outer ring flame cap 20 on the outer plate 31. When the burner is running, the central flame formed by the first inner ring flame hole 111 and the middle ring flame formed by the second inner ring flame hole 131 and the third inner ring flame hole 132 act on the bottom surface of the cookware, and the heat will gradually radiate to the outer periphery of the cookware. By maintaining a certain distance between the middle ring flame and the outer ring flame, a heating surface with a relatively uniform temperature distribution can be formed, thereby preventing the problem of uneven heating of the bottom surface of the cookware.

[0088] Optionally in this embodiment, the support portions 32 are multiple and spaced apart, with a secondary air inlet formed between adjacent support portions 32 for replenishing secondary air into the inner ring flame cap 10. The secondary air inlet is used to replenish secondary air from the bottom into the second inner ring flame hole 131 and the third inner ring flame hole 132 of the inner ring flame cap 10, thereby increasing the amount of secondary air replenished into the middle ring flame of the inner ring flame cap 10.

[0089] The secondary air inlets between the multiple support sections 32 can form a uniform air supply channel between the outer disc 31 and the inner disc 33, thereby improving the combustion efficiency of the gas. When the burner is running, a high-heat zone forms near the flame area of ​​the inner ring burner cap 10 and the outer ring burner cap 20, making it difficult for air to be input into the burner from the side of the outer disc 31. By placing the secondary air inlets between adjacent support sections 32, secondary air can be supplied from the bottom of the gas distribution plate 30 towards the inner ring burner cap 10. Secondary air can be more easily supplied from the low-temperature zone to the high-temperature zone, which helps to increase the amount of secondary air supplied.

[0090] Based on the above-mentioned burner, this invention proposes an embodiment of a gas stove.

[0091] The gas stove includes a burner as described in any of the above embodiments.

[0092] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An inner ring flame cap, characterized in that, include: Top cover; The outer ring wall, and the top cover is disposed on the outer ring wall; An inner ring wall is disposed inside the outer ring wall, and a central cavity is formed in the middle of the inner ring wall; as well as A connecting plate is disposed between the inner ring wall and the outer ring wall. One end of the connecting plate is connected to the end of the inner ring wall near the top cover, and the other end of the connecting plate is connected to the outer ring wall. The top cover, the outer ring wall, and the connecting plate enclose a first inner ring gas chamber that communicates with the central cavity. The top cover is provided with a first inner ring flame hole that communicates with the first inner ring gas chamber. The outer ring wall is provided with a second inner ring flame hole that communicates with the first inner ring gas chamber. The outer ring wall, the connecting plate, and the inner ring wall enclose a second inner ring gas chamber. The outer ring wall is provided with a third inner ring flame hole that communicates with the second inner ring gas chamber.

2. The inner ring flame cap as described in claim 1, characterized in that, The outer ring wall is provided with a flame stabilizing hole that connects to the second inner ring gas chamber.

3. The inner ring flame cap as described in claim 2, characterized in that, The outer periphery of the outer ring wall is provided with a flame stabilizing groove; The end of the flame stabilizing hole away from the second inner ring gas chamber is connected to the flame stabilizing groove, and / or the flame stabilizing groove is provided with a through hole connecting to the interior of the third inner ring flame hole.

4. The inner ring flame cap as described in claim 1, characterized in that, The inner ring fire cap also includes: A fixing mesh is installed on the side of the top cover facing away from the first inner ring gas chamber; and An infrared combustion plate is installed between the fixed net and the top cover.

5. The inner ring flame cap as described in claim 1, characterized in that, The outer ring wall has a stepped surface at one end near the top cover, and the outer periphery of the top cover is movably mounted on the stepped surface.

6. The inner ring flame cap as described in any one of claims 1 to 5, characterized in that, A flow guide wall is provided between the inner ring wall and the connecting plate. One end of the flow guide wall is connected to the inner ring wall, and the other end is connected to the end of the connecting plate away from the outer ring wall. The guide wall has a first guide slope on the side surface facing the first inner ring gas chamber for guiding the airflow of the central chamber toward the second inner ring flame hole; and / or, the guide wall has a second guide slope on the side surface facing the second inner ring gas chamber for guiding the airflow of the second inner ring gas chamber toward the third inner ring flame hole.

7. A burner, characterized in that, Including the inner ring flame cap and the air distribution plate as described in any one of claims 1 to 6, wherein the air distribution plate comprises: An outer disc body, the outer disc body forming an outer annular combustion chamber, the outer disc body being provided with an outer annular flame cap, the outer annular flame cap being provided with an outer annular flame hole communicating with the outer annular combustion chamber; and The inner disc body has an inner ring flame cap disposed on it, and an outer disc body is disposed around the outside of the inner disc body. The inner disc body has a first air inlet and a second air inlet. The second inner ring gas chamber is connected to the first air inlet, the central cavity is connected to the second air inlet, and the outer ring gas chamber is connected to the first air inlet.

8. The burner as claimed in claim 7, characterized in that, The inner disc is hollow inside and has an annular partition. A first transition gas chamber is formed between the annular partition and the inner wall of the inner disc. The inner disc has a through hole that connects the first transition gas chamber and the second inner annular gas chamber of the inner annular burner cap. The first air inlet is formed on the inner disc and communicates with the first transition gas chamber. A second transition gas chamber is formed inside the annular partition to connect the second air inlet and the central cavity.

9. The burner as claimed in claim 8, characterized in that, The gas distribution plate also includes: A support portion is provided between the inner disc and the outer disc, and an airflow channel connecting the first transition gas chamber and the outer annular gas chamber is formed within the support portion.

10. The burner as claimed in claim 9, characterized in that, The support portions are multiple and spaced apart, with a secondary air inlet formed between adjacent support portions for supplying secondary air to the inner ring fire cover.

11. The burner as claimed in claim 7, characterized in that, One of the inner disc body and the outer ring wall of the inner ring fire cover is provided with a protrusion, and the other is provided with a limiting groove, wherein the protrusion is embedded in the limiting groove.

12. A gas stove, characterized in that, The gas stove includes a burner as described in any one of claims 7 to 11.

Images