Combustor and gas stove

Abstract

The utility model relates to a combustor and a gas stove. The combustor comprises a furnace end, a gas inlet and a gas outlet, the inner ring fire cover is arranged at the top of the furnace end, and an inner ring fire cavity is formed below the inner ring fire cover; the outer ring fire cover is arranged at the top of the furnace end, and an outer ring fire cavity is formed below the outer ring fire cover; the outer ring fire cover is provided with the outer ring fire seam, the outer ring fire seam is arranged around the center of the outer ring fire cover, the flame stability of outer ring seam fire is good, the flame stability of the combustor can be effectively improved, and the heat efficiency of the combustor is improved. The outer ring fire seam extends upwards in an inclined mode or extends horizontally towards the center of the outer ring fire cover, one port of the outer ring fire seam faces the center of the outer ring fire cover, and the other port of the outer ring fire seam communicates with the outer ring fire cavity; the top face of the outer ring fire cover can cover the top of the end opening, communicated with the outer ring fire cavity, of the outer ring fire gap, dirt can be effectively prevented from entering the fire cavity, and the fire cover is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to a burner and a gas stove. Background Art

[0002] Gas stoves are kitchen appliances that use liquefied petroleum gas (liquid), artificial coal gas, natural gas and other gas fuels for direct heating. Gas stoves have become an indispensable electrical appliance in home life. With the improvement of people's living standards, people's requirements for the performance of gas stoves are getting higher and higher.

[0003] In a multi-ring burner of a related gas stove, the multi-ring burner is usually provided with an inner ring fire cover and an outer ring fire cover, wherein the inner ring fire cover forms an inner ring fire and the outer ring fire cover forms an outer ring fire.

[0004] In the related multi-ring fire gas burners, the fire holes of the fire cover are usually round fire holes or strip fire holes, so when in use, it is easy to cause the flame to be unstable and the thermal efficiency to be low. In addition, dirt can easily enter the inside of the burner through the fire holes. Utility Model Content

[0005] The utility model aims to provide a burner to optimize the fire hole structure of the fire cover in the burner in the related art, improve the flame stability of the burner, and prevent dirt from entering the inside of the burner.

[0006] The purpose of the utility model can also be to provide a gas stove to optimize the burner structure of the gas stove in the related art, improve the flame stability and thermal efficiency of the burner, and prevent dirt from entering the burner.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] According to one aspect of the utility model, the utility model provides a burner, which includes: a burner head; an inner ring fire cover, which is arranged at the top of the burner head, and an inner ring fire cavity is formed below the bottom of the inner ring fire cover; an outer ring fire cover, which is arranged at the top of the burner head and is arranged around the outer periphery of the inner ring fire cover, and an outer ring fire cavity is formed below the bottom of the outer ring fire cover; wherein, the outer ring fire cover is provided with an annular outer ring fire seam, and the outer ring fire seam is arranged around the center of the outer ring fire cover; the outer ring fire seam is arranged to extend upwardly and obliquely toward the center of the outer ring fire cover or to extend horizontally, one port of the outer ring fire seam is arranged toward the center of the outer ring fire cover, and the other port of the outer ring fire seam is connected to the outer ring fire cavity; the top surface of the outer ring fire cover can cover the top of the port of the outer ring fire seam connected to the outer ring fire cavity.

[0009] In some embodiments of the present application, the width of the outer ring fire seam gradually increases in a direction along the outer ring fire cavity toward the outside of the outer ring fire seam.

[0010] In some embodiments of the present application, in the direction along the outer ring fire cavity toward the outside of the outer ring fire seam, the outer ring fire seam forms an outer expansion angle opening toward the outside, and the angle range of the outer expansion angle is between 10° and 30°.

[0011] In some embodiments of the present application, the angle between the center of the gap of the outer ring fire gap and the horizontal plane is between 30° and 60°.

[0012] In some embodiments of the present application, a plurality of external connecting ribs arranged circumferentially at intervals are provided at the bottom of the outer ring fire seam, and the inner and outer ends of the external connecting ribs are respectively connected to the inner and outer side walls of the outer ring fire seam, and the plurality of external connecting ribs separate the outer ring fire seam into a plurality of outer ring seam holes arranged circumferentially at intervals; an external connecting area is formed above the top of the external connecting rib, and the external connecting area is located in the outer ring fire seam, and the external connecting area connects the outer ring seam holes on adjacent sides, so that the plurality of outer ring seam holes in the outer ring fire seam are connected in sequence along the circumferential direction.

[0013] In some embodiments of the present application, an external ventilation hole is provided on the external connecting rib, the top of the external ventilation hole is connected to the external connecting area, and the bottom of the external ventilation hole is connected to the outer ring fire cavity.

[0014] In some embodiments of the present application, a plurality of outer ring fire seams are provided on the outer ring fire cover, and the plurality of outer ring fire seams are arranged in an inner and outer manner at intervals from the center of the outer ring fire cover to the surrounding areas.

[0015] In some embodiments of the present application, the inner ring fire cover is provided with an annular inner ring fire seam, which is arranged around the center of the inner ring fire cover; the inner ring fire seam is arranged to extend upwardly and obliquely or horizontally toward the circumference of the inner ring fire cover, the outer port of the inner ring fire seam is arranged toward the circumference of the inner ring fire cover, and the inner port of the inner ring fire seam is connected to the inner ring fire cavity; the top surface of the inner ring fire cover can cover above the top of the inner port of the inner ring fire seam.

[0016] In some embodiments of the present application, the width of the inner ring fire seam gradually increases in a direction along the inner ring fire cavity toward the outside of the inner ring fire seam.

[0017] In some embodiments of the present application, in the direction along the inner ring fire cavity toward the outside of the inner ring fire seam, the inner ring fire seam forms an inner expansion angle opening toward the outside, and the angle range of the inner expansion angle is between 10° and 30°.

[0018] In some embodiments of the present application, the angle between the center of the inner ring fire seam and the horizontal plane is between 30° and 60°.

[0019] In some embodiments of the present application, a plurality of circumferentially spaced inner connecting ribs are provided at the bottom of the inner ring fire seam, and inner and outer ends of the inner connecting ribs are respectively connected to inner and outer side walls of the inner ring fire seam, and the plurality of inner connecting ribs separate the inner ring fire seam into a plurality of circumferentially spaced inner ring seam holes; an inner connecting area is formed above the top of the inner connecting rib, and the inner connecting area is located in the inner ring fire seam, and the inner connecting area connects the inner ring seam holes on adjacent sides, so that the plurality of inner ring seam holes in the inner ring fire seam are circumferentially connected in sequence.

[0020] In some embodiments of the present application, an internal ventilation hole is provided on the internal connecting rib, the top of the internal ventilation hole is connected to the internal connecting area, and the bottom of the internal ventilation hole is connected to the inner fire ring cavity.

[0021] According to another aspect of the utility model, the utility model also provides a burner, which includes: a burner head; an inner ring fire cover, wherein the inner ring fire cover is arranged on the top of the burner head, and an inner ring fire cavity is formed between the inner ring fire cover and the burner head; wherein the inner ring fire cover is provided with an annular inner ring fire seam, and the inner ring fire seam is arranged around the center of the inner ring fire cover; the inner ring fire seam is arranged to extend upwardly or horizontally toward the circumference of the inner ring fire cover, and the outer port of the inner ring fire seam is arranged toward the circumference of the inner ring fire cover, and the inner port of the inner ring fire seam is connected to the inner ring fire cavity; the top surface of the inner ring fire cover can cover the top of the inner port of the inner ring fire seam.

[0022] According to another aspect of the utility model, the utility model further provides a gas stove, which includes the burner mentioned above.

[0023] The embodiments of the present invention have the following advantages and positive effects:

[0024] In the burner of the embodiment of the utility model, an inner ring fire cover and an outer ring fire cover are arranged on the top of the burner head, and an outer ring fire seam connected to the outer ring fire cavity is provided on the outer ring fire cover. The outer ring fire seam is annular in structure and arranged around the center of the outer ring fire cover, so that an outer ring seam fire can be formed. The flame stability of the outer ring seam fire is good, which can effectively improve the flame stability of the burner and improve the thermal efficiency of the burner. The outer ring fire seam is arranged by extending it obliquely or horizontally so that the top surface of the outer ring fire cover can cover the top of the outer port of the outer ring fire seam, which can effectively prevent dirt from entering the fire cavity and facilitate the cleaning of the fire cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a burner according to an embodiment of the utility model.

[0026] Figure 2 yes Figure 1 Schematic diagram of the decomposition structure.

[0027] Figure 3 yes Figure 1 Top view of the .

[0028] Figure 4 yes Figure 3 Sectional view along AA direction.

[0029] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area B in the middle.

[0030] Figure 6 yes Figure 2 Schematic diagram of the structure of the middle inner ring fire cover.

[0031] Figure 7 yes Figure 6 Schematic diagram of the structure from another perspective.

[0032] Figure 8 yes Figure 6 A cross-sectional view of .

[0033] Fig. 9 yes Figure 4 Schematic diagram of the enlarged structure of the C area in the middle.

[0034] Fig.10 yes Figure 2 Schematic diagram of the structure of the middle and outer ring fire covers.

[0035] Fig.11 yes Fig.10 Schematic diagram of the structure from another perspective.

[0036] Fig.12 yes Fig.10 A cross-sectional view of .

[0037] Fig.13 yes Figure 2 Schematic diagram of the structure of the medium fire cover.

[0038] Fig.14 yes Figure 2 Schematic diagram of the exploded structure of the middle burner.

[0039] Fig.15 It is a structural schematic diagram of a burner according to another embodiment of the utility model.

[0040] Fig.16 yes Fig.15 A cross-sectional view of .

[0041] Fig.17 yes Fig.16Schematic diagram of the enlarged structure of the D area in the middle.

[0042] Fig.18 yes Fig.15 A cross-sectional view of the middle inner ring fire cover.

[0043] Fig.19 yes Fig.16 Schematic diagram of the enlarged structure of area E in the middle.

[0044] Fig. 20 yes Fig.15 A cross-sectional view of the middle and outer ring fire covers.

[0045] The accompanying drawings are marked as follows: 1. furnace head; 11. furnace base; 111. inner ring ejector tube; 112. outer ring ejector tube; 12. furnace cover; 121. support tube; 13. ignition needle; 20. inner ring fire cavity; 21. inner ring fire seam; 211. inner ring seam hole; 212. inner connecting area; 22. inner connecting rib; 221. inner air vent; 23. inner fire transfer hole; 24. ventilation channel; 3. outer ring fire cover; 30. outer ring fire cavity; 30a. upper mixing cavity; 30b. lower mixing cavity; 31. outer ring fire seam; 311. outer ring seam hole; 312. outer connecting area; 32. outer connecting rib; 321. outer air vent; 33. outer fire transfer hole; 4. fire cover seat; 41. sleeve. DETAILED DESCRIPTION

[0046] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In the related multi-ring fire gas burners, the fire holes of the fire cover are usually round fire holes or strip fire holes, so when in use, it is easy to cause the flame to be unstable and the thermal efficiency to be low. In addition, dirt can easily enter the inside of the burner through the fire holes.

[0051] Figure 1 It is a structural schematic diagram of a burner according to an embodiment of the utility model. Figure 2 yes Figure 1 Schematic diagram of the decomposition structure. Figure 3 yes Figure 1 Top view of the . Figure 4 yes Figure 3 Sectional view along AA direction.

[0052] See also Figures 1 to 4 As shown, a burner provided by an embodiment of the utility model may include a burner head 1. The interior of the burner head 1 may be used to form a fire cavity, and external gas may be introduced into the fire cavity for combustion. The fire cavity may extend upward to the top of the burner head 1, and the fire cavity may guide the external gas to the top area of ​​the burner head 1 for combustion.

[0053] In some embodiments, the fire cavity formed in the burner 1 may include an inner ring fire cavity 20. The inner ring fire cavity 20 may be formed at the center of the burner 1. The inner ring fire cavity 20 may be used to form an inner ring flame at the top of the burner 1.

[0054] In some embodiments, the fire cavity formed in the burner 1 may include an outer ring fire cavity 30. The outer ring fire cavity 30 may be formed in the peripheral area of ​​the burner 1. The outer ring fire cavity 30 may be used to form an outer ring flame on the top of the burner 1. The outer ring fire cavity 30 may be arranged around the peripheral area of ​​the inner ring fire cavity 20.

[0055] See also Figures 1 to 4As shown, in some embodiments, an inner ring ejector tube 111 may be convexly provided on the outer peripheral wall of the burner head 1. The inner ring ejector tube 111 may be arranged to extend outwardly in the radial direction of the burner head 1. The inner end of the inner ring ejector tube 111 may be communicated with the inner ring fire cavity 20. The outer end of the inner ring ejector tube 111 may be used to connect a gas pipeline. External gas may be transported to the inner ring fire cavity 20 through the gas pipeline and the inner ring ejector tube 111.

[0056] In some embodiments, an outer ring ejector tube 112 may be protrudingly provided on the outer peripheral wall of the burner head 1. The outer ring ejector tube 112 may be arranged to extend outwardly in the radial direction of the burner head 1. The inner end of the outer ring ejector tube 112 may be communicated with the outer ring fire cavity 30. The outer end of the outer ring ejector tube 112 may be used to connect a gas pipeline. External gas may be transported to the inner part of the outer ring fire cavity 30 through the gas pipeline and the outer ring ejector tube 112.

[0057] See also Figures 1 to 4 As shown, in some embodiments, the burner may include an inner ring fire cover 2. The inner ring fire cover 2 may be covered on the top of the burner head 1. The inner ring fire cover 2 may be detachably arranged at the top center of the burner head 1. When the inner ring fire cover 2 is arranged on the top of the burner head 1, an inner ring fire cavity 20 may be formed between the bottom of the inner ring fire cover 2 and the top of the burner head 1, that is, the inner ring fire cavity 20 may be formed below the bottom of the inner ring fire cover 2. The gas in the inner ring fire cavity 20 can burn on the top surface of the inner ring fire cover 2.

[0058] In some embodiments, the burner may include an outer ring fire cover 3. The outer ring fire cover 3 may be covered on the top of the burner head 1. The outer ring fire cover 3 may be detachably arranged on the peripheral area of ​​the top of the burner head 1. The outer ring fire cover 3 may be arranged around the outer periphery of the inner ring fire cover 2. When the outer ring fire cover 3 is arranged on the top of the burner head 1, an outer ring fire cavity 30 may be formed between the bottom of the outer ring fire cover 3 and the top of the burner head 1, that is, the outer ring fire cavity 30 may be formed below the bottom of the outer ring fire cover 3. The gas in the outer ring fire cavity 30 can burn on the top surface of the outer ring fire cover 3.

[0059] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area B in the middle. Figure 6 yes Figure 2 Schematic diagram of the structure of the middle inner ring fire cover 2. Figure 7 yes Figure 6 Schematic diagram of the structure from another perspective. Figure 8 yes Figure 6 A cross-sectional view of .

[0060] See also Figures 1 to 8As shown, in some embodiments, an inner ring fire cover 2 may be provided with an inner ring fire seam 21. The inner ring fire seam 21 may be an annular structure. The inner ring fire seam 21 may be arranged around the center of the inner ring fire cover 2. The inner ring fire seam 21 may be formed by milling along the circumference of the inner ring fire cover 2 by a milling cutter. The top of the inner ring fire seam 21 may be connected to the space outside the inner ring fire cover 2. The bottom of the inner ring fire seam 21 may be connected to the inner ring fire cavity 20. Therefore, the gas in the inner ring fire cavity 20 can flow to the inner ring fire seam 21 for combustion, and then form an inner ring seam fire above the top of the inner ring fire cover 2, and the inner ring seam fire may be an annular gap flame. The gap flame has good stability, which can effectively improve the flame stability of the burner and improve the thermal efficiency of the burner.

[0061] See also Figures 5 to 8 As shown, in some embodiments, the inner ring fire seam 21 is arranged to extend upwardly and obliquely toward the circumference of the inner ring fire cover 2. The outer port of the inner ring fire seam 21 can be arranged toward the circumference of the inner ring fire cover 2, and the outer port of the inner ring fire seam 21 can be connected to the space outside the inner ring fire cover 2. The inner port of the inner ring fire seam 21 can be connected to the inner ring fire cavity 20. The top surface of the inner ring fire cover 2 can cover the top of the inner port of the inner ring fire seam 21. Therefore, it can effectively prevent dirt from entering the inner ring fire cover 2, making the inner ring fire cover 2 easy to clean.

[0062] See also Figure 8 As shown, in some embodiments, the angle α1 between the gap center of the inner ring fire gap 21 and the horizontal plane may be less than 60°.

[0063] In some embodiments, the angle α1 between the center of the inner ring fire seam 21 and the horizontal plane may also be greater than 30°.

[0064] In some embodiments, the angle α1 between the center of the inner ring fire seam 21 and the horizontal plane may be between 30° and 60° to improve the combustion efficiency of the burner.

[0065] See also Figure 8 As shown, in some embodiments, the width between the inner side wall and the outer side wall of the inner ring fire seam 21 can gradually increase in the direction from the inner ring fire cavity 20 toward the outside of the inner ring fire seam 21. The width of the end of the inner ring fire seam 21 connected to the inner ring fire cavity 20 can be smaller than the width of the end connected to the outside of the inner ring fire seam 21, that is, the width of the inner port of the inner ring fire seam 21 can be smaller than the width of the outer port of the inner ring fire seam 21. Therefore, the inner ring seam hole 211 of the inner ring fire seam 21 can gradually expand along the direction of gas outflow, thereby reducing the occurrence of flame separation at the inner ring seam hole 211 of the inner ring fire seam 21, which is conducive to further improving the flame stability of the inner ring seam fire.

[0066] In some embodiments, in the direction from the inner ring fire cavity 20 toward the outside of the inner ring fire seam 21, an inner expansion angle α2 may be formed between the inner sidewall and the outer sidewall of the inner ring fire seam 21, with the opening facing the outside of the inner ring fire seam 21. The angle of the inner expansion angle α2 may be less than 30°.

[0067] In some embodiments, the inner expansion angle α2 may also be greater than 10°.

[0068] In some embodiments, the inner expansion angle α2 may range from 10° to 30°, which is beneficial for improving the flame stability of the inner annular seam fire.

[0069] See also Figures 4 to 8 As shown, in some embodiments, an inner fire transfer hole 23 may be provided on the top surface of the inner fire ring cover 2. The inner fire transfer hole 23 may be in the shape of an elongated strip, and the inner fire transfer hole 23 may be arranged to extend in the radial direction. One end of the inner fire transfer hole 23 may extend to the inner fire ring seam 21. The other end of the inner fire transfer hole 23 may extend to the outer peripheral wall of the inner fire ring cover 2. An ignition needle 13 may be provided on the outer peripheral side of the inner fire ring cover 2. The ignition needle 13 may be arranged directly opposite the inner fire transfer hole 23. Therefore, the gas in the inner fire ring seam 21 can flow through the inner fire transfer hole 23 to the vicinity of the ignition needle 13, and then be ignited by the ignition needle 13.

[0070] See also Figures 5 to 8 As shown, in some embodiments, an inner connecting rib 22 may be provided on the inner bottom surface of the inner ring fire cover 2. The inner connecting rib 22 may be provided at the bottom of the inner ring fire seam 21. The inner connecting rib 22 may be extended and arranged along the radial direction of the inner ring fire cover 2. The inner end of the inner connecting rib 22 may be connected to the inner side wall of the inner ring fire seam 21. The outer end of the inner connecting rib 22 may be connected to the outer side wall of the inner ring fire seam 21. The inner and outer side walls of the inner ring fire seam 21 may be connected and fixed to each other by the inner connecting rib 22. The inner connecting rib 22 may be integrally formed with the inner ring fire cover 2 during forging, thereby ensuring the structural strength of the inner ring fire cover 2.

[0071] In some embodiments, a plurality of inner connecting ribs 22 may be provided on the inner bottom surface of the inner ring fire cover 2. The plurality of inner connecting ribs 22 may be arranged at circumferential intervals. The plurality of inner connecting ribs 22 may separate the inner ring fire seam 21 into a plurality of inner ring seam holes 211 arranged at circumferential intervals. The inner ring seam hole 211 may be in an arc-shaped or circular arc-shaped structure. The top of the inner ring seam hole 211 may be connected to the space outside the inner ring fire cover 2. The bottom of the inner ring seam hole 211 may be connected to the inner ring fire cavity 20. Therefore, the gas in the inner ring fire cavity 20 can flow to the inner ring seam hole 211 for combustion, and the flames at the plurality of inner ring seam holes 211 may be combined to form an annular inner ring seam fire.

[0072] In some embodiments, a plurality of inner connecting ribs 22 may be arranged at equal intervals in the circumferential direction, so that the arc length of each inner ring slit hole 211 is equal, thereby making the flame shape and size of each inner ring slit hole 211 consistent, thereby improving the flame uniformity of the inner ring beacon.

[0073] In some embodiments, an inner connecting area 212 may be formed between adjacent inner ring slit holes 211. The inner connecting area 212 may be formed above the top of the inner connecting rib 22. The inner connecting area 212 may be located in the inner ring fire seam 21. The inner connecting area 212 may be located between two adjacent inner ring slit holes 211. The inner connecting area 212 may connect the inner ring slit holes 211 on both sides of the adjacent inner ring slit holes, so that the multiple inner ring slit holes 211 in the inner ring fire seam 21 may be connected in sequence. Therefore, the gas in the inner ring fire cavity 20 can simultaneously enter each inner ring slit hole 211 and the inner connecting area 212 for combustion, thereby forming an annular gap fire, that is, forming an annular inner ring slit fire. Since the inner ring slit fires at each inner ring slit hole 211 are connected to each other, they can stabilize the flames to each other, so the flame stability of the inner ring slit fire is better.

[0074] In some embodiments, an inner vent hole 221 may be provided on the inner connecting rib 22. The top of the inner vent hole 221 may be connected to the inner connecting area 212. The bottom of the inner vent hole 221 is connected to the inner ring fire cavity 20. Therefore, the gas in the inner ring fire cavity 20 may also enter the inner connecting area 212 through the inner vent hole 221 for combustion, and then form a flame at the inner vent hole 221, which may make the flame connection between adjacent inner ring seam holes 211 tighter, further improving the flame stability of the inner ring seam fire.

[0075] In some embodiments, the inner vent hole 221 may be arranged to extend upwardly at an angle. The inner vent hole 221 may be arranged to extend upwardly at an angle away from the center of the inner ring fire cover 2. It should be noted that in other embodiments, the inner vent hole 221 may be arranged to extend upwardly in a vertical direction.

[0076] See also Figures 4 to 8 As shown, in some embodiments, a ventilation channel 24 extending vertically upward and downward may be provided at the center of the inner ring fire cover 2. The lower end of the ventilation channel 24 may be extended and arranged at the center of the burner head 1. The ventilation channel 24 may pass through the central area of ​​the inner ring fire cover 2 and the burner head 1 in sequence from top to bottom. The top of the ventilation channel 24 may be connected to the top area of ​​the inner ring fire cover 2. The bottom end of the ventilation channel 24 may be connected to the space below the bottom of the burner head 1. Therefore, when the gas in the inner ring fire cavity 20 burns in the inner ring fire seam 21 of the inner ring fire cover 2, the air in the external space can be supplied to the top area of ​​the inner ring fire cover 2 through the ventilation channel 24 for secondary air supply, thereby improving the combustion efficiency of the flame in the inner ring fire seam 21.

[0077] Fig. 9 yes Figure 4 Schematic diagram of the enlarged structure of the C area in the middle. Fig.10 yes Figure 2 Schematic diagram of the structure of the middle and outer ring fire cover 3. Fig.11 yes Fig.10 Schematic diagram of the structure from another perspective. Fig.12 yes Fig.10 A cross-sectional view of .

[0078] See also Figures 1 to 12 As shown, in some embodiments, an outer ring fire cover 3 may be provided with an outer ring fire seam 31. The outer ring fire seam 31 may be an annular structure. The outer ring fire seam 31 may be arranged around the center of the outer ring fire cover 3. The top of the outer ring fire seam 31 may be connected to the space outside the outer ring fire cover 3. The bottom of the outer ring fire seam 31 may be connected to the outer ring fire cavity 30. Therefore, the gas in the outer ring fire cavity 30 can flow to the outer ring fire seam 31 for combustion, and then form an outer ring seam fire above the top of the outer ring fire cover 3, and the outer ring seam fire may be an annular gap flame. The gap flame has good stability, which can effectively improve the flame stability of the burner and improve the thermal efficiency of the burner.

[0079] See also Figures 5 to 12 As shown, in some embodiments, the outer ring fire seam 31 is arranged to extend upwardly and obliquely toward the center of the outer ring fire cover 3. The top port of the outer ring fire seam 31 can be arranged toward the center of the outer ring fire cover 3. The bottom port of the outer ring fire seam 31 can be connected to the outer ring fire cavity 30. The top surface of the outer ring fire cover 3 can cover the top of the bottom port of the outer ring fire seam 31, that is, the top surface of the outer ring fire cover 3 can cover the top of the port of the outer ring fire seam 31 that is connected to the outer ring fire cavity 30. Therefore, it is possible to effectively prevent dirt from entering the inner part of the outer ring fire cover 3, making the outer ring fire cover 3 easy to clean.

[0080] See also Fig.12 As shown, in some embodiments, the angle β1 between the center of the outer ring fire seam 31 and the horizontal plane may be less than 60°.

[0081] In some embodiments, the angle β1 between the center of the outer ring fire seam 31 and the horizontal plane may also be greater than 30°.

[0082] In some embodiments, the angle β1 between the center of the outer ring fire slot 31 and the horizontal plane may be between 30° and 60° to improve the combustion efficiency of the burner.

[0083] See also Fig.12As shown, in some embodiments, the width of the outer ring fire seam 31 can gradually increase in the direction from the outer ring fire cavity 30 toward the outside of the outer ring fire seam 31. The width of the end of the outer ring fire seam 31 connected to the outer ring fire cavity 30 can be smaller than the width of the end connected to the outside of the outer ring fire seam 31, that is, the width of the bottom port of the outer ring fire seam 31 can be smaller than the width of the top port of the outer ring fire seam 31. Therefore, the outer ring fire seam 31 gradually expands along the direction of gas outflow, thereby reducing the occurrence of flame separation at the outer ring fire seam 31, which is conducive to further improving the flame stability of the outer ring seam fire.

[0084] In some embodiments, in the direction from the outer ring fire cavity 30 toward the outside of the outer ring fire seam 31, an outer expansion angle β2 opening toward the outside may be formed between the inner side wall and the outer side wall of the outer ring fire seam 31. The angle of the outer expansion angle β2 may be less than 30°. In some embodiments, the angle of the outer expansion angle β2 may also be greater than 10°.

[0085] In some embodiments, the outer expansion angle β2 may range from 10° to 30°, which is beneficial for improving the flame stability of the outer ring seam fire.

[0086] See also Figures 4 to 12 As shown, in some embodiments, an outer fire hole 33 may be provided on the top surface of the outer fire cover 3. The outer fire hole 33 may be in the shape of an elongated strip, and the outer fire hole 33 may be arranged to extend in the radial direction. One end of the outer fire hole 33 may extend to the outer fire seam 31. The other end of the outer fire hole 33 may extend to the inner center of the outer fire cover 3. Therefore, the gas in the outer fire seam 31 can flow to the vicinity of the ignition needle 13 through the outer fire hole 33, and then be ignited by the ignition needle 13.

[0087] See also Figures 5 to 12 As shown, in some embodiments, an external connecting rib 32 may be provided on the inner bottom surface of the outer ring fire cover 3. The external connecting rib 32 may be provided at the bottom of the outer ring fire seam 31. The external connecting rib 32 may be extended and arranged along the radial direction of the outer ring fire cover 3. The inner end of the external connecting rib 32 may be connected to the inner side wall of the outer ring fire seam 31. The outer end of the external connecting rib 32 may be connected to the outer side wall of the outer ring fire seam 31. The inner and outer side walls of the outer ring fire seam 31 may be connected and fixed to each other by the external connecting rib 32. The external connecting rib 32 may be integrally formed with the outer ring fire cover 3 during forging, thereby ensuring the structural strength of the outer ring fire cover 3.

[0088] In some embodiments, a plurality of external connecting ribs 32 may be provided on the inner bottom surface of the outer ring fire cover 3. The plurality of external connecting ribs 32 may be arranged at intervals in the circumferential direction. The plurality of external connecting ribs 32 may separate the outer ring fire seam 31 into a plurality of outer ring seam holes 311 arranged at intervals in the circumferential direction. The outer ring seam hole 311 may be in an arc-shaped or circular arc-shaped structure. The top of the outer ring seam hole 311 may be connected to the space outside the outer ring fire cover 3. The bottom of the outer ring seam hole 311 may be connected to the outer ring fire cavity 30. Therefore, the gas in the outer ring fire cavity 30 can flow to the outer ring seam hole 311 for combustion, and the flames at the plurality of outer ring seam holes 311 may be combined to form an annular outer ring seam fire.

[0089] In some embodiments, multiple external connecting ribs 32 can be arranged at equal intervals in the circumferential direction, so that the arc length of each outer ring slot hole 311 is equal, and thus the flame shape and size of each outer ring slot hole 311 are consistent, thereby improving the flame uniformity of the outer ring beacon.

[0090] In some embodiments, an outer connecting area 312 may be formed between adjacent outer ring slit holes 311. The outer connecting area 312 may be formed above the top of the outer connecting rib 32. The outer connecting area 312 may be located in the outer ring fire seam 31. The outer connecting area 312 may be located between two adjacent outer ring slit holes 311. The outer connecting area 312 may connect the outer ring slit holes 311 on both sides of the adjacent outer ring slit holes 311, so that the multiple outer ring slit holes 311 in the outer ring fire seam 31 may be connected in sequence. Therefore, the gas in the outer ring fire cavity 30 can simultaneously enter each outer ring slit hole 311 and the outer connecting area 312 for combustion, thereby forming an annular gap fire, that is, forming an annular outer ring slit fire. Since the outer ring slit fires at each outer ring slit hole 311 are connected to each other, they can stabilize the flames of each other, so the flame stability of the outer ring slit fire is better.

[0091] In some embodiments, an outer vent hole 321 may be provided on the outer connecting rib 32. The top of the outer vent hole 321 may be connected to the outer connecting area 312. The bottom of the outer vent hole 321 is connected to the outer ring fire cavity 30. Therefore, the gas in the outer ring fire cavity 30 can also enter the outer connecting area 312 through the outer vent hole 321 for combustion, and then form a flame at the outer vent hole 321, which can make the flame connection between adjacent outer ring slit holes 311 tighter, further improving the flame stability of the outer ring slit fire.

[0092] In some embodiments, the outer vent hole 321 may be arranged to extend upward in a vertical direction. It should be noted that in other embodiments, the outer vent hole 321 may also be arranged to extend upward in an inclined manner.

[0093] See also Figures 5 to 12 As shown, in some embodiments, two outer ring fire seams 31 may be provided on the outer ring fire cover 3. The two outer ring fire seams 31 may be arranged in an inner and outer spacing manner around the center of the outer ring cover.

[0094] It should be noted that, in other embodiments, the number of outer ring fire seams 31 can be multiple. Multiple outer ring fire seams 31 can be arranged in sequence inside and outside. The number of outer ring fire seams 31 can be adjusted as needed, and is not limited here. In addition, in other embodiments, the number of inner ring fire seams 21 can also be multiple, and the number can be adjusted as needed, and is not limited here.

[0095] Fig.13 yes Figure 2 A schematic structural diagram of the medium fire cover seat 4.

[0096] See also Figures 2 to 13 As shown, in some embodiments, the burner may include a fire cover seat 4. The fire cover seat 4 may be arranged above the top of the burner head 1. The fire cover seat 4 may be arranged below the bottom of the outer ring fire cover 3. The fire cover seat 4 may be annular. The contour shape of the fire cover seat 4 may be consistent with the contour shape of the outer ring fire cover 3. The outer ring fire cover 3 may be covered on the top surface of the fire cover seat 4. The outer ring fire chamber 30 may include an upper mixing gas chamber 30a, and the upper mixing gas chamber 30a may be formed between the top surface of the fire cover seat 4 and the bottom surface of the outer ring fire cover 3. The bottom end of the outer ring fire seam 31 may be connected to the upper mixing gas chamber 30a. The gas in the outer ring fire chamber 30 may enter the upper mixing gas chamber 30a, and then burn at the outer ring fire seam 31.

[0097] In some embodiments, the outer ring fire chamber 30 may include a lower gas mixing chamber 30b formed inside the burner head 1. The upper gas mixing chamber 30a may be connected to the lower gas mixing chamber 30b up and down. The lower gas mixing chamber 30b may be connected to the outer ring ejector pipe 112. External gas may enter the lower gas mixing chamber 30b through the outer ring ejector pipe 112, then enter the upper gas mixing chamber 30a upward, and finally burn at the outer ring fire seam 31.

[0098] Fig.14 yes Figure 2 Schematic diagram of the exploded structure of the middle burner 1.

[0099] See also Figures 2 to 14 As shown, in some embodiments, a support tube 121 may be convexly provided on the top surface of the burner head 1. The bottom end of the support tube 121 may be connected to the lower mixing chamber 30b. The bottom of the fire cover seat 4 may be provided with a sleeve 41 that matches the support tube 121. The top of the sleeve 41 may be connected to the upper mixing chamber 30a.

[0100] When the fire cover seat 4 is arranged on the top of the burner head 1, the sleeve 41 can be connected with the support tube 121 up and down. The bottom end of the sleeve 41 can be detachably sleeved and supported on the top of the support tube 121. The bottom end of the sleeve 41 can be connected up and down with the top of the support tube 121. The lower mixing chamber 30b in the burner head 1 can be connected with the upper mixing chamber 30a through the sleeve 41 and the support tube 121.

[0101] In some embodiments, the furnace head 1 may include a furnace base 11 and a furnace cover 12. The furnace cover 12 may be disposed on the top of the furnace base 11. The top surface of the furnace base 11 and the bottom surface of the furnace cover 12 may enclose a lower mixing gas chamber 30b. The support pipe 121 may be formed on the top surface of the furnace cover 12.

[0102] Fig.15 It is a structural schematic diagram of a burner according to another embodiment of the utility model. Fig.16 yes Fig.15 A cross-sectional view of . Fig.17 yes Fig.16 Schematic diagram of the enlarged structure of the D area in the middle. Fig.18 yes Fig.15 A cross-sectional view of the middle inner ring fire cover. Fig.19 yes Fig.16 Schematic diagram of the enlarged structure of area E in the middle. Fig. 20 yes Fig.15 A cross-sectional view of the middle and outer ring fire covers.

[0103] See also Figures 15 to 20 As shown, the burner provided by another embodiment of the utility model may include a burner head 1, an inner ring fire cover 2 and an outer ring fire cover 3. The structure of the burner head 1 of this embodiment is similar to Figures 1 to 14 The burner head 1 of the embodiment has the same structure and will not be described in detail here. Figures 1 to 14 The difference between the burners in the embodiments is that the structure of the inner ring fire gap 21 of the inner ring fire cover 2 is different. The structure of the outer ring fire gap 31 of the outer ring fire cover 3 is different.

[0104] See also Figures 15 to 20 As shown, in some embodiments, in the inner ring fire cover 2, the inner ring fire seam 21 is arranged to extend in a horizontal direction toward the circumference of the inner ring fire cover 2. The outer port of the inner ring fire seam 21 can be arranged toward the circumference of the inner ring fire cover 2, and the outer port of the inner ring fire seam 21 can be connected to the space outside the inner ring fire cover 2. The inner port of the inner ring fire seam 21 can be connected to the inner ring fire cavity 20. The top surface of the inner ring fire cover 2 can cover the top of the inner port of the inner ring fire seam 21. Therefore, it can effectively prevent dirt from entering the inner ring fire cover 2, making the inner ring fire cover 2 easy to clean.

[0105] See also Figures 15 to 20As shown, in some embodiments, in the outer ring fire cover 3, the outer ring fire seam 31 is arranged to extend horizontally toward the center of the outer ring fire cover 3. The inner port of the outer ring fire seam 31 can be arranged toward the center of the outer ring fire cover 3. The outer port of the outer ring fire seam 31 can be connected to the outer ring fire cavity 30. The top surface of the outer ring fire cover 3 can cover the top of the outer port of the outer ring fire seam 31, that is, the top surface of the outer ring fire cover 3 can cover the top of the port of the outer ring fire seam 31 that is connected to the outer ring fire cavity 30. Therefore, it is possible to effectively prevent dirt from entering the inner part of the outer ring fire cover 3, making the outer ring fire cover 3 easy to clean.

[0106] Based on the structure of the burner in the above-mentioned embodiments, the embodiment of the utility model further provides a gas stove, which may include a shell and a burner. The shell may be a container structure with a hollow interior. The exterior of the shell may form the outer shell of the gas stove. The interior space of the shell may form an installation cavity. The installation cavity may be used to provide an installation space for the burner. The burner may adopt the structure of the burner in the above-mentioned embodiments, and the burner may be arranged in the installation cavity. The top of the burner may protrude from the top surface of the shell. The tops of the outer ring fire cover 3 and the inner ring fire cover 2 protrude from the top surface of the shell, so that the pot is mounted above the burner and heated by the burner, thereby realizing the cooking function.

[0107] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A burner, characterized in that: include: stove top; An inner ring fire cover, the inner ring fire cover is arranged on the top of the burner head, and an inner ring fire cavity is formed below the bottom of the inner ring fire cover; An outer ring fire cover, which is arranged on the top of the burner head and surrounds the outer periphery of the inner ring fire cover, and an outer ring fire cavity is formed below the bottom of the outer ring fire cover; Wherein, the outer ring fire cover is provided with an annular outer ring fire seam, and the outer ring fire seam is arranged around the center of the outer ring fire cover; The outer ring fire seam is arranged to extend upwardly and obliquely toward the center of the outer ring fire cover or to extend horizontally, one end of the outer ring fire seam is arranged toward the center of the outer ring fire cover, and the other end of the outer ring fire seam is connected to the outer ring fire cavity; The top surface of the outer ring fire cover can cover the top of the port of the outer ring fire seam that is connected to the outer ring fire cavity.

2. The burner according to claim 1, characterized in that In the direction along the outer ring fire cavity toward the outside of the outer ring fire seam, the width of the outer ring fire seam gradually increases.

3. The burner according to claim 2, characterized in that In the direction along the outer ring fire cavity toward the outside of the outer ring fire seam, the outer ring fire seam forms an outer expansion angle with an opening toward the outside, and the angle range of the outer expansion angle is between 10° and 30°.

4. The burner according to claim 1, characterized in that The angle between the center of the outer ring fire seam and the horizontal plane is between 30° and 60°.

5. The burner according to claim 1, characterized in that The bottom of the outer ring fire seam is provided with a plurality of outer connecting ribs arranged at intervals in the circumferential direction, the inner and outer ends of the outer connecting ribs are respectively connected to the inner and outer side walls of the outer ring fire seam, and the plurality of outer connecting ribs separate the outer ring fire seam into a plurality of outer ring seam holes arranged at intervals in the circumferential direction; An external connection area is formed above the top of the external connection rib, and the external connection area is located in the outer ring fire seam. The external connection area connects the outer ring seam holes on two adjacent sides so that the multiple outer ring seam holes in the outer ring fire seam are connected in sequence along the circumferential direction.

6. The burner according to claim 5, characterized in that The external connection rib is provided with an external vent hole, the top of the external vent hole is connected to the external connection area, and the bottom of the external vent hole is connected to the outer ring fire cavity.

7. The burner according to claim 1, characterized in that The outer ring fire cover is provided with a plurality of outer ring fire seams, and the plurality of outer ring fire seams are arranged in an inner and outer spacing manner from the center of the outer ring fire cover to the surrounding areas.

8. The burner according to claim 1, characterized in that The inner ring fire cover is provided with an inner ring fire seam in an annular shape, and the inner ring fire seam is arranged around the center of the inner ring fire cover; The inner ring fire seam is arranged to extend upwardly and obliquely toward the circumference of the inner ring fire cover or to extend horizontally, the outer port of the inner ring fire seam is arranged toward the circumference of the inner ring fire cover, and the inner port of the inner ring fire seam is connected to the inner ring fire cavity; The top surface of the inner ring fire cover can cover the top of the inner port of the inner ring fire seam.

9. The burner according to claim 8, characterized in that In the direction along the inner ring fire cavity toward the outside of the inner ring fire seam, the width of the inner ring fire seam gradually increases.

10. The burner according to claim 9, characterized in that In the direction from the inner ring fire cavity toward the outside of the inner ring fire seam, the inner ring fire seam forms an inner expansion angle with an opening toward the outside, and the angle range of the inner expansion angle is between 10° and 30°.

11. The burner according to claim 8, characterized in that The angle between the center of the inner ring fire seam and the horizontal plane is between 30° and 60°.

12. The burner according to claim 8, characterized in that The bottom of the inner ring fire seam is provided with a plurality of inner connecting ribs arranged at intervals in the circumferential direction, the inner and outer ends of the inner connecting ribs are respectively connected to the inner and outer side walls of the inner ring fire seam, and the plurality of inner connecting ribs separate the inner ring fire seam into a plurality of inner ring seam holes arranged at intervals in the circumferential direction; An inner connecting area is formed above the top of the inner connecting rib, and the inner connecting area is located in the inner ring fire seam. The inner connecting area connects the inner ring seam holes on two adjacent sides so that the multiple inner ring seam holes in the inner ring fire seam are connected in sequence along the circumferential direction.

13. The burner according to claim 12, characterized in that An inner vent hole is provided on the inner connecting rib, the top of the inner vent hole is connected to the inner connecting area, and the bottom of the inner vent hole is connected to the inner fire ring cavity.

14. A burner, characterized in that: include: stove top; An inner ring fire cover, the inner ring fire cover is arranged on the top of the burner head, and an inner ring fire cavity is formed between the inner ring fire cover and the burner head; Wherein, the inner ring fire cover is provided with an inner ring fire seam in an annular shape, and the inner ring fire seam is arranged around the center of the inner ring fire cover; The inner ring fire seam is arranged to extend upwardly and obliquely toward the circumference of the inner ring fire cover or to extend horizontally, the outer port of the inner ring fire seam is arranged toward the circumference of the inner ring fire cover, and the inner port of the inner ring fire seam is connected to the inner ring fire cavity; The top surface of the inner ring fire cover can cover the top of the inner port of the inner ring fire seam.

15. A gas stove, characterized in that: Comprising the burner according to any one of claims 1-14.

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