Gas stove

Abstract

The utility model relates to a gas stove, which comprises a burner. An inner ring fire cavity is formed by the inner ring fire cover and the furnace end; an outer ring fire cavity is formed between the outer ring fire cover and the furnace end; an outer ring fire seam is formed in the peripheral wall of the outer ring fire cover, the outer port of the outer ring fire seam faces the periphery of the outer ring fire cover, and the inner port of the outer ring fire seam communicates with the outer ring fire cavity; the outer ring fire seam can form outer ring seam fire, the flame stability of the 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. In the direction from the inner end opening of the outer ring fire seam to the outer end opening of the outer ring fire seam, the outer ring fire seam obliquely extends upwards, and the flame stability can be improved. The top face of the outer ring fire cover can cover the outer end opening 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 gas stove. Background Art

[0002] Gas stoves are kitchen appliances that use liquefied petroleum gas (liquid), artificial 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 problems such as unstable flames and low thermal efficiency. In addition, dirt can easily enter the burner through the fire holes. Utility Model Content

[0005] The utility model aims to provide a gas stove to optimize the fire hole structure of the fire cover of the burner in the gas stove in the related art and improve the flame stability and thermal efficiency of the burner.

[0006] The utility model may also provide a gas stove to optimize the fire hole structure of the fire cover of the burner in the gas stove in the related art to prevent dirt from entering the interior of the fire cover.

[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 gas stove, comprising a burner, which includes: a burner; an inner ring fire cover, wherein the inner ring fire cover is arranged at the top of the burner, and an inner ring fire cavity is formed between the bottom of the inner ring fire cover and the top of the burner; an outer ring fire cover, wherein the outer ring fire cover is arranged at the top of the burner and is arranged around the outer circumference of the inner ring fire cover, and an outer ring fire cavity is formed between the bottom of the outer ring fire cover and the top of the burner; wherein an outer ring fire seam arranged circumferentially is provided on the outer circumferential wall of the outer ring fire cover, the outer port of the outer ring fire seam is arranged toward the outer circumference of the outer ring fire cover, and the inner port of the outer ring fire seam is connected to the outer ring fire cavity; in the direction from the inner port of the outer ring fire seam toward its outer port, the outer ring fire seam is arranged to extend upward at an angle; and the top surface of the outer ring fire cover can cover the outer port of the outer ring fire seam.

[0009] In some embodiments of the present application, the outer ring fire seam is formed by circumferentially rotating cutting of the outer peripheral wall of the outer ring fire cover.

[0010] In some embodiments of the present application, the width of the outer ring fire seam gradually increases in the direction from the inner end of the outer ring fire seam toward the outer end thereof.

[0011] In some embodiments of the present application, the outer ring fire cover includes an outer top cover, an outer bottom ring and a first connecting rib; the outer bottom ring is arranged below the bottom of the outer peripheral edge of the outer top cover, and the outer ring fire seam is formed between the bottom surface of the outer top cover and the top surface of the outer bottom ring; the first connecting rib is arranged at the inner port of the outer ring fire seam, and the first connecting rib is arranged to extend vertically; the first connecting rib is protruding on the inner side walls of the outer top cover and the outer bottom ring, the upper end of the first connecting rib is connected to the outer top cover, and the lower end of the first connecting rib is connected to the outer bottom ring, so that the outer top cover can be supported above the top of the outer bottom ring by the first connecting rib.

[0012] In some embodiments of the present application, a vertically extending gas mixing channel is provided at the center of the burner head, the outer ring fire chamber is arranged at intervals on the outer periphery of the gas mixing channel, and a gas channel is arranged between the gas mixing channel and the outer ring fire chamber; one end of the gas channel is connected to the gas mixing channel, and the other end of the gas channel is connected to the outer ring fire chamber; in the direction from the gas mixing channel toward the outer ring fire chamber, the gas channel is arranged to extend upward at an angle.

[0013] In some embodiments of the present application, the angle between the inclined extension direction of the gas channel and the horizontal plane is α, and the angle range of α is between 15 degrees and 30 degrees.

[0014] In some embodiments of the present application, a fixing column is protruding from the bottom surface of the outer ring fire cover, and a threaded hole is provided in the fixing column; the top of the burner head is provided with a mounting hole arranged vertically, and the threaded hole is arranged vertically opposite to the mounting hole, so that the fixing column can be detachably fixed at the mounting hole.

[0015] In some embodiments of the present application, an inner ring fire seam is provided on the outer peripheral wall of the inner ring fire cover, and an outer port of the inner ring fire seam is arranged toward the outer periphery of the inner ring fire cover, and an inner port of the inner ring fire seam is connected to the inner ring fire cavity; in the direction from the inner port of the inner ring fire seam toward its outer port, the inner ring fire seam is arranged to extend upward at an incline; the top surface of the inner ring fire cover can cover the outer port of the inner ring fire seam.

[0016] In some embodiments of the present application, the inner ring fire seam is formed by circumferentially rotating cutting of the outer wall of the inner ring fire cover.

[0017] In some embodiments of the present application, the width of the inner ring fire seam gradually increases in the direction from the inner end of the inner ring fire seam toward the outer end thereof.

[0018] In some embodiments of the present application, the inner ring fire cover includes an inner top cover, an inner bottom ring and a second connecting rib; the inner bottom ring is arranged below the bottom of the outer peripheral edge of the inner top cover, and the inner ring fire seam is formed between the bottom surface of the inner top cover and the top surface of the inner bottom ring; the second connecting rib is arranged at the inner port of the inner ring fire seam, and the second connecting rib is arranged to extend vertically; the second connecting rib is protruding on the inner side walls of the inner top cover and the inner bottom ring, the upper end of the second connecting rib is connected to the inner top cover, and the lower end of the second connecting rib is connected to the inner bottom ring, so that the inner top cover can be supported above the top of the inner bottom ring by the second connecting rib.

[0019] According to another aspect of the utility model, the utility model also provides a gas stove, including a burner, which includes: a burner; an inner ring fire cover, wherein the inner ring fire cover is arranged at the top of the burner, and an inner ring fire cavity is formed between the bottom of the inner ring fire cover and the top of the burner; an outer ring fire cover, wherein the outer ring fire cover is arranged at the top of the burner and is arranged around the outer circumference of the inner ring fire cover, and an outer ring fire cavity is formed between the bottom of the outer ring fire cover and the top of the burner; wherein an inner ring fire seam arranged circumferentially is provided on the outer circumferential wall of the inner ring fire cover, and the outer port of the inner ring fire seam is arranged toward the outer 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; in the direction from the inner port of the inner ring fire seam toward its outer port, the inner ring fire seam is arranged to extend upward in an inclined manner; the inner ring fire seam is formed by circumferentially rotating and cutting the outer circumferential wall of the inner ring fire cover, and the top surface of the inner ring fire cover can cover the outer port of the inner ring fire seam.

[0020] The embodiments of the present invention have the following advantages and positive effects:

[0021] In the burner of the gas stove 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 the outer ring fire cover is arranged around the outer periphery of the inner ring fire cover. An outer ring fire seam arranged circumferentially is provided on the outer peripheral wall of the outer ring fire cover, and the outer ring fire seam is connected to the outer ring fire cavity to form an outer ring seam fire. 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 flame stability can be improved by arranging the outer ring fire seam to extend upward in an inclined manner. The top surface of the outer ring fire cover can cover 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

[0022] Figure 1 It is a structural schematic diagram of a burner according to an embodiment of the utility model.

[0023] Figure 2 yes Figure 1A schematic diagram of the decomposed structure.

[0024] Figure 3 yes Figure 1 Top view of the .

[0025] Figure 4 yes Figure 3 Sectional view along AA direction.

[0026] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of the C area in the middle.

[0027] Figure 6 yes Figure 3 Cross-sectional view along the BB axis.

[0028] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of the D area in the middle.

[0029] Figure 8 yes Figure 2 Schematic diagram of the structure of the middle and outer ring fire covers.

[0030] Fig. 9 yes Figure 8 Schematic diagram of the structure from another perspective.

[0031] Fig.10 yes Figure 8 A cross-sectional view of .

[0032] Fig.11 yes Figure 2 Schematic diagram of the structure of the middle inner ring fire cover.

[0033] Fig.12 yes Fig.11 Schematic diagram of the structure from another perspective.

[0034] Fig.13 yes Fig.11 A cross-sectional view of .

[0035] Fig.14 yes Figure 2 Schematic diagram of the structure of the middle furnace head.

[0036] Fig.15 yes Fig.14 A schematic diagram of the decomposed structure.

[0037] Fig.16 yes Fig.15 Schematic diagram of the structure of the middle stove plate from another perspective.

[0038] The accompanying drawings are described as follows: 100, burner; 1, burner head; 11, burner base; 111, inner ring ejector tube; 112, outer ring ejector tube; 113, inner gas mixing channel; 114, outer gas mixing channel; 115, rising channel; 12, furnace plate; 120, gas supply gap; 121, center plate; 1211, connecting hole; 122, outer ring plate; 1221, mounting hole; 123, connecting pipe; 1231, gas channel; 2, inner ring fire cover; 20, inner ring fire cavity; 21, inner ring fire seam; 22, second connecting rib; 23, inner top cover; 24, inner bottom ring; 3, outer ring fire cover; 30, outer ring fire cavity; 31, outer ring fire seam; 32, first connecting rib; 33, outer top cover; 331, fixing column; 3311, threaded hole; 332, fire transfer seam; 34, outer bottom ring. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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 problems such as unstable flames and low thermal efficiency. In addition, dirt can easily enter the burner through the fire holes.

[0044] Figure 1 It is a structural schematic diagram of a burner 100 according to an embodiment of the present utility model. Figure 2 yes Figure 1 A schematic diagram of the decomposed structure.

[0045] See also Figure 1 to Figure 2 As shown, an embodiment of the utility model provides a gas stove, which may include a shell (not shown in the figure). The shell may be a container structure with a hollow interior. The exterior of the shell may form an outer shell of the gas stove.

[0046] The gas stove may include a burner 100. The inner space of the housing may form an installation cavity. The installation cavity may be used to provide an installation space for the burner 100. The top of the burner 100 may protrude from the top surface of the housing.

[0047] In some embodiments, the burner 100 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 be formed at 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.

[0048] Figure 3 yes Figure 1 Top view of the . Figure 4 yes Figure 3 Sectional view along AA direction. Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of the C area in the middle. Figure 6 yes Figure 3 Cross-sectional view along the BB axis. Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of the D area in the middle.

[0049] See also Figures 1 to 7 As shown, in some embodiments, the burner 100 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.

[0050] In some embodiments, when the inner ring fire cover 2 is covered on the top of the burner head 1, a fire cavity can be formed between the bottom of the inner ring fire cover 2 and the top of the burner head 1, and the fire cavity is the inner ring fire cavity 20. The inner ring fire cavity 20 can be formed between the bottom of the inner ring fire cover 2 and the top of the burner head 1. The gas in the inner ring fire cavity 20 can burn on the top of the inner ring fire cover 2.

[0051] See also Figures 1 to 4 As 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.

[0052] In some embodiments, an inner gas mixing channel 113 may be formed inside the burner head 1. The inner gas mixing channel 113 may be arranged to extend vertically up and down. The inner end of the inner ring ejector pipe 111 may be communicated with the bottom end of the inner gas mixing channel 113. The top end of the inner gas mixing channel 113 may be communicated with the inner ring fire cavity 20. External gas may sequentially transport gas to the inner ring fire cavity 20 through the inner ring ejector pipe 111 and the inner gas mixing channel 113.

[0053] See also Figures 1 to 7 As shown, in some embodiments, the burner 100 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 at intervals.

[0054] In some embodiments, when the outer ring fire cover 3 is covered on the top of the burner head 1, a fire cavity may be formed between the bottom of the outer ring fire cover 3 and the top of the burner head 1, and the fire cavity is the outer ring fire cavity 30. The 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. The gas in the outer ring fire cavity 30 can burn on the top surface of the outer ring fire cover 3.

[0055] See also Figures 1 to 6 As shown, in some embodiments, an outer ring ejector tube 112 may be convexly provided on the outer peripheral wall of the burner head 1. The outer ring ejector tube 112 may be arranged to extend in the outer peripheral direction of the burner head 1. The extension direction of the outer ring ejector tube 112 may be arranged parallel to the extension direction of the inner ring ejector tube 111. The inner end of the outer ring ejector tube 112 may be connected to 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.

[0056] In some embodiments, an external gas mixing channel 114 may be formed inside the burner 1. The external gas mixing channel 114 may be arranged to extend vertically up and down. The external gas mixing channel 114 may be arranged in an outer ring on the outer periphery of the internal gas mixing channel 113. The inner end of the outer ring ejector pipe 112 may be connected to the bottom end of the external gas mixing channel 114. The top end of the external gas mixing channel 114 may be connected to the outer ring fire chamber 30. External gas may be transported to the inner part of the outer ring fire chamber 30 through the outer ring ejector pipe 112 and the external gas mixing channel 114 in sequence.

[0057] See also Figures 1 to 6 As shown, in some embodiments, the outer ring fire chamber 30 can be arranged at intervals on the outer periphery of the outer gas mixing channel 114. A gas channel 1231 can be provided between the top of the outer gas mixing channel 114 and the outer ring fire chamber 30. The inner end of the gas channel 1231 can be connected to the top area of ​​the outer gas mixing channel 114. The outer end of the gas channel 1231 can be connected to the outer ring fire chamber 30. The gas in the outer gas mixing channel 114 can be introduced into the outer ring fire chamber 30 through the gas channel 1231.

[0058] In some embodiments, the gas channel 1231 is arranged to extend upwardly at an angle from the inner end of the gas channel 1231 toward the outer end thereof. The upwardly extending arrangement of the gas channel 1231 can make it easier for the outer gas mixing channel 114 to transport gas into the outer ring fire cavity 30, reduce the formation of gas internal vortexes, reduce energy loss, and help improve the thermal efficiency of the burner 100.

[0059] See also Figure 4 As shown, in some embodiments, the angle between the inclined extension direction of the gas channel 1231 and the horizontal plane may be α.

[0060] In some embodiments, the inclination angle α of the gas channel 1231 may be greater than 15 degrees. The inclination angle α of the gas channel 1231 may also be equal to 15 degrees. The inclination angle α being greater than or equal to 15 degrees can make the gas in the external gas mixing channel 114 flow out more smoothly.

[0061] In some embodiments, the inclination angle α of the gas channel 1231 may be less than 30 degrees. The inclination angle α of the gas channel 1231 may also be equal to 30 degrees. The inclination angle α being less than or equal to 30 degrees can keep sufficient spacing between the outer ring fire cavity 30 and the inner ring fire cavity 20.

[0062] See also Figures 1 to 6As shown, in some embodiments, an ascending channel 115 may be provided between the bottom end of the external gas mixing channel 114 and the outer ring ejector pipe 112. The inner end of the ascending channel 115 may be connected to the bottom area of ​​the external gas mixing channel 114. The outer end of the ascending channel 115 may be connected to the outer ring ejector pipe 112. External gas may enter the external gas mixing channel 114 through the outer ring ejector pipe 112 and the ascending channel 115 in sequence.

[0063] In some embodiments, the ascending channel 115 is arranged to extend upwardly at an angle from the outer end of the ascending channel 115 toward the inner end thereof. The upwardly extending arrangement of the ascending channel 115 can make the gas transport from the outer ring ejector pipe 112 to the outer gas mixing channel 114 smoother, can reduce the formation of gas internal vortex, reduce energy loss, and help improve the thermal efficiency of the burner 100.

[0064] Figure 8 yes Figure 2 Schematic diagram of the structure of the middle and outer ring fire cover 3. Fig. 9 yes Figure 8 Schematic diagram of the structure from another perspective. Fig.10 yes Figure 8 A cross-sectional view of .

[0065] See also Figures 2 to 10 As shown, in some embodiments, an outer ring fire slit 31 may be provided on the outer peripheral wall of the outer ring fire cover 3. The outer ring fire slit 31 may be an annular structure. The outer ring fire slit 31 may be circumferentially arranged on the outer peripheral wall of the outer ring fire cover 3. The outer port of the outer ring fire slit 31 may be connected to the space outside the outer ring fire cover 3. The inner port of the outer ring fire slit 31 may be connected to the outer ring fire cavity 30. The gas in the outer ring fire cavity 30 can flow to the outer ring fire slit 31 for combustion, and then form an outer ring slit fire above the top of the outer ring fire cover 3. The outer ring slit fire may be an annular slit flame. The slit flame has good stability, which can effectively improve the flame stability of the burner 100 and improve the thermal efficiency of the burner 100.

[0066] In some embodiments, the outer ring fire seam 31 may be arranged to extend upwardly in an inclined manner from the inner port of the outer ring fire seam 31 toward the outer port thereof. The inclined upward extension structure of the outer ring fire seam 31 may allow the gas in the outer ring fire cavity 30 to flow more smoothly to the outer port of the outer ring fire seam 31 for combustion, thereby improving the combustion efficiency of the burner 100.

[0067] In some embodiments, the width of the outer ring fire seam 31 gradually increases in the direction from the inner port of the outer ring fire seam 31 toward its outer port. The width of the outer port of the outer ring fire seam 31 may be greater than the width of the inner port of the outer ring fire seam 31. Therefore, the outer ring fire seam 31 may gradually expand along the direction of gas outflow, thereby reducing the occurrence of flame separation at the outer ring fire seam 31, which is beneficial to further improve the flame stability of the outer ring seam fire.

[0068] See also Figures 2 to 10 As shown, in some embodiments, the top surface of the outer ring fire cover 3 can cover the outer port of the outer ring fire seam 31. It can effectively prevent dirt from entering the inner part of the outer ring fire cover 3, and then prevent dirt from entering the inner part of the burner 100, making the outer ring fire cover 3 easy to clean.

[0069] In some embodiments, the outer ring fire seam 31 can be formed by cutting the outer peripheral wall of the outer ring fire cover 3 by circumferential rotation using a turning process. The outer ring fire seam 31 can be turned out in one go, which is simple to process and helps reduce costs.

[0070] In some embodiments, the outer ring fire cover 3 can be formed by integral die casting, which does not require a split design, can reduce the number of parts, and thus help reduce costs.

[0071] See also Figures 7 to 10 As shown, in some embodiments, the outer ring fire cover 3 may include a first connecting rib 32. The first connecting rib 32 may be protruding on the inner wall of the outer ring fire cover 3. The first connecting rib 32 may be arranged at the inner port of the outer ring fire seam 31. The first connecting rib 32 may be arranged to extend vertically. The upper end of the first connecting rib 32 may be connected to the fire cover portion on the upper side of the outer ring fire seam 31. The lower end of the first connecting rib 32 may be connected to the fire cover portion on the lower side of the outer ring fire seam 31. The fire cover portions on the upper and lower sides of the outer ring fire seam 31 may be connected to each other through the first connecting rib 32.

[0072] In some embodiments, the first connecting rib 32 is located on the inner side of the inner port of the outer ring fire seam 31. The first connecting rib 32 does not extend into the inner portion of the outer ring fire seam 31. Therefore, the first connecting rib 32 will not affect the interconnection of the gas in the outer ring fire seam 31, and thus will not affect the flame stability of the outer ring fire seam 31.

[0073] See also Figures 7 to 10 In some embodiments shown, the outer ring fire cover 3 may include an outer top cover 33. The outer ring fire cavity 30 may be formed below the bottom surface of the outer top cover 33. The outer ring fire gap 31 may be formed below the bottom surface of the peripheral side edge of the outer top cover 33.

[0074] In some embodiments, the outer ring fire cover 3 may include an outer bottom ring 34. The outer bottom ring 34 may be disposed below the bottom of the outer peripheral edge of the outer top cover 33. The outer ring fire gap 31 may be formed between the bottom surface of the outer top cover 33 and the top surface of the outer bottom ring 34. The outer ring fire cavity 30 may be formed on the inner side of the outer bottom ring 34.

[0075] See also Figures 7 to 10 As shown, in some embodiments, the first connecting rib 32 may be protruding from the inner side walls of the outer top cover 33 and the outer bottom ring 34. The upper end of the first connecting rib 32 may be connected to the inner side wall of the outer top cover 33. The lower end of the first connecting rib 32 may be connected to the inner side wall of the outer bottom ring 34. The outer top cover 33 can be supported and fixed above the top of the outer bottom ring 34 by the first connecting rib 32.

[0076] In some embodiments, the outer ring fire cover 3 may include a plurality of first connecting ribs 32. The plurality of first connecting ribs 32 may be arranged circumferentially at intervals on the inner sidewalls of the outer top cover 33 and the outer bottom ring 34. It should be noted that the number of the first connecting ribs 32 may be adjusted as needed and is not limited here.

[0077] See also Figures 7 to 10 As shown, in some embodiments, a fixing column 331 may be convexly provided on the bottom surface of the outer ring fire cover 3. The fixing column 331 may be arranged to extend downward from the inner bottom surface of the outer top cover 33. A threaded hole 3311 may be provided in the fixing column 331. The threaded hole 3311 may be opened on the bottom surface of the fixing column 331. The top of the burner head 1 may be provided with a mounting hole 1221 arranged through the top and bottom. The threaded hole 3311 and the mounting hole 1221 may be arranged in a vertically opposite manner. By passing through the bolts in the mounting hole 1221 and the threaded hole 3311, the fixing column 331 can be detachably fixed at the mounting hole 1221, and then the outer ring fire cover 3 can be detachably fixed above the top of the burner head 1. The outer ring fire cover 3 and the burner head 1 can be fixed together by bolts to avoid the situation that the user takes away the outer ring fire cover 3 and puts it back, which is easy to cause it to be not put in place, thereby causing abnormal combustion.

[0078] In some embodiments, there may be a plurality of fixing columns 331. The plurality of fixing columns 331 are arranged at intervals on the bottom surface of the outer ring fire cover 3. There may be a plurality of mounting holes 1221. The plurality of mounting holes 1221 may be arranged at intervals on the burner head 1. The plurality of fixing columns 331 and the plurality of mounting holes 1221 may be arranged in one-to-one correspondence.

[0079] Fig.11 yes Figure 2 Schematic diagram of the structure of the middle inner ring fire cover 2. Fig.12 yes Fig.11 Schematic diagram of the structure from another perspective. Fig.13 yes Fig.11 A cross-sectional view of .

[0080] See also Figures 2 to 13 As shown, in some embodiments, an inner ring fire seam 21 may be provided on the outer peripheral wall of the inner ring fire cover 2. The inner ring fire seam 21 may be an annular structure. The inner ring fire seam 21 may be circumferentially arranged on the outer peripheral wall of the inner ring fire cover 2. The outer port of the inner ring fire seam 21 may be connected to the space outside the inner ring fire cover 2. The inner port of the inner ring fire seam 21 may be connected to the inner ring fire cavity 20. 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. The inner ring seam fire may be an annular gap flame, and the gap flame has good stability, which can effectively improve the flame stability of the burner 100 and improve the thermal efficiency of the burner 100.

[0081] In some embodiments, the inner ring fire seam 21 may be arranged to extend upwardly in an inclined manner in the direction from the inner port of the inner ring fire seam 21 toward the outer port thereof. The inclined upward extension structure of the inner ring fire seam 21 may allow the gas in the inner ring fire cavity 20 to flow more smoothly to the outer port of the inner ring fire seam 21 for combustion, thereby improving the combustion efficiency of the burner 100.

[0082] In some embodiments, the width of the inner ring fire seam 21 gradually increases in the direction from the inner end of the inner ring fire seam 21 toward its outer end. The width of the outer end of the inner ring fire seam 21 may be greater than the width of the inner end of the inner ring fire seam 21. Therefore, the inner ring fire seam 21 may gradually expand along the direction of gas outflow, thereby reducing the occurrence of flame separation at the ring fire seam, which is beneficial to further improve the flame stability of the inner ring seam fire.

[0083] See also Figures 2 to 13 As shown, in some embodiments, the top surface of the inner ring fire cover 2 can cover the outer port of the inner ring fire seam 21. It can effectively prevent dirt from entering the inner ring fire cover 2, and further prevent dirt from entering the burner 100, making the inner ring fire cover 2 easy to clean.

[0084] In some embodiments, the inner ring fire seam 21 can be formed by cutting the outer peripheral wall of the inner ring fire cover 2 by circumferential rotation using a turning process. The inner ring fire seam 21 can be turned out in one go, which is simple to process and helps reduce costs.

[0085] In some embodiments, the inner ring fire cover 2 can be formed by integral die casting, which does not require a split design, can reduce the number of parts, and thus help reduce costs.

[0086] See also Figures 7 to 13As shown, in some embodiments, the inner ring fire cover 2 may include a second connecting rib 22. The second connecting rib 22 may be protruding on the inner wall of the inner ring fire cover 2. The second connecting rib 22 may be arranged at the inner end of the inner ring fire seam 21. The second connecting rib 22 may be arranged to extend vertically. The upper end of the second connecting rib 22 may be connected to the fire cover portion on the upper side of the inner ring fire seam 21. The lower end of the second connecting rib 22 may be connected to the fire cover portion on the lower side of the inner ring fire seam 21. The fire cover portions on the upper and lower sides of the inner ring fire seam 21 may be connected to each other through the second connecting rib 22.

[0087] In some embodiments, the second connecting rib 22 is located on the inner side of the inner end of the inner ring fire seam 21. The second connecting rib 22 does not extend into the inner ring fire seam 21. Therefore, the second connecting rib 22 will not affect the interconnection of the gas in the inner ring fire seam 21, and thus will not affect the flame stability of the inner ring fire seam 21.

[0088] See also Figures 7 to 13 In some embodiments shown, the inner ring fire cover 2 may include an inner top cover 23. The inner ring fire cavity 20 may be formed below the bottom surface of the inner top cover 23. The inner ring fire gap 21 may be formed below the bottom surface of the peripheral edge of the inner top cover 23.

[0089] In some embodiments, the inner ring fire cover 2 may include an inner bottom ring 24. The inner bottom ring 24 may be disposed below the bottom of the outer peripheral edge of the inner top cover 23. The inner ring fire gap 21 may be formed between the bottom surface of the inner top cover 23 and the top surface of the inner bottom ring 24. The inner ring fire cavity 20 may be formed on the inner side of the inner bottom ring 24.

[0090] See also Figures 7 to 13 As shown, in some embodiments, the second connecting rib 22 may be protruding from the inner sidewalls of the inner top cover 23 and the inner bottom ring 24. The upper end of the second connecting rib 22 may be connected to the inner sidewall of the inner top cover 23. The lower end of the second connecting rib 22 may be connected to the inner sidewall of the inner bottom ring 24. The inner top cover 23 can be supported and fixed above the top of the inner bottom ring 24 by the second connecting rib 22.

[0091] In some embodiments, the inner ring fire cover 2 may include a plurality of second connecting ribs 22. The plurality of second connecting ribs 22 may be arranged circumferentially at intervals on the inner sidewalls of the inner top cover 23 and the inner bottom ring 24. It should be noted that the number of the second connecting ribs 22 may be adjusted as required and is not limited here.

[0092] Fig.14 yes Figure 2 Schematic diagram of the structure of the middle furnace head 1. Fig.15 yes Fig.14 A schematic diagram of the decomposed structure. Fig.16 yes Fig.15 A schematic structural diagram of the middle furnace plate 12 from another viewing angle.

[0093] See also Figures 2 to 16 As shown, in some embodiments, the furnace head 1 may include a furnace seat 11. The furnace seat 11 may be formed in the bottom area of ​​the furnace head 1. The outer gas mixing channel 114 and the inner gas mixing channel 113 may be formed in the furnace seat 11, respectively. The inner gas mixing channel 113 may be arranged at the center of the furnace seat 11. The outer gas mixing channel 114 may be arranged around the outer periphery of the inner gas mixing channel 113.

[0094] In some embodiments, the inner ring ejector tube 111 may be detachably disposed on the outer periphery of the furnace seat 11. It should be noted that, in other embodiments, the inner ring ejector tube 111 may also be integrally formed on the outer periphery of the furnace seat 11.

[0095] In some embodiments, the outer ring ejector tube 112 may be detachably disposed on the outer periphery of the furnace base 11. The inner ring ejector tube 111 and the outer ring ejector tube 112 may be arranged at intervals. It should be noted that, in other embodiments, the outer ring ejector tube 112 may also be integrally formed on the outer periphery of the furnace base 11.

[0096] See also Figures 2 to 16 As shown, in some embodiments, the burner head 1 may include a burner plate 12. The burner plate 12 may be formed in the top area of ​​the burner head 1. The burner plate 12 may be covered on the top of the burner base 11. The diameter of the burner plate 12 may be greater than the outer diameter of the burner base 11. The center of the top surface of the burner base 11 may be covered on the top of the outer gas mixing channel 114 and the inner gas mixing channel 113.

[0097] In some embodiments, the inner ring fire cover 2 may be disposed at the center of the top surface of the furnace plate 12. The inner ring fire cavity 20 may be formed between the top surface of the furnace plate 12 and the bottom surface of the inner ring fire cover 2.

[0098] In some embodiments, the outer ring fire cover 3 may be disposed on the circumference of the top surface of the furnace plate 12. The outer ring fire cavity 30 may be formed between the top surface of the furnace plate 12 and the bottom surface of the outer ring fire cover 3.

[0099] See also Figures 2 to 16 As shown, in some embodiments, the furnace plate 12 may include a center plate 121. The center plate 121 may be disposed on the top of the furnace base 11. The center plate 121 may be disposed on the top of the outer gas mixing channel 114 and the inner gas mixing channel 113. The inner ring fire cover 2 may be disposed on the top of the center plate 121. The inner ring fire cavity 20 may be formed between the top surface of the center plate 121 and the bottom surface of the inner ring fire cover 2.

[0100] In some embodiments, a connecting hole 1211 may be provided at the center of the center disk 121. The connecting hole 1211 may connect the inner ring fire cavity 20 and the top of the inner gas mixing channel 113. The gas in the inner gas mixing channel 113 may enter the inner ring fire cavity 20 through the connecting hole 1211.

[0101] See also Figures 2 to 16 As shown, in some embodiments, the furnace plate 12 may include an outer ring plate 122. The outer ring plate 122 may be arranged around the outer circumference of the central plate 121 at intervals. The outer ring fire cover 3 may be covered above the top of the outer ring plate 122. The outer ring fire cavity 30 may be formed between the top surface of the outer ring plate 122 and the bottom surface of the outer ring fire cover 3.

[0102] In some embodiments, the mounting hole 1221 may be provided on the outer ring disk 122. The mounting hole 1221 may penetrate the outer ring disk 122 vertically. When the outer ring fire cover 3 is disposed above the top of the outer ring disk 122, the threaded hole 3311 in the fixing column 331 may be arranged vertically opposite to the mounting hole 1221. Therefore, the fixing column 331 may be detachably fixed at the mounting hole 1221, so that the outer ring fire cover 3 may be detachably fixed above the top of the outer ring disk 122.

[0103] See also Figures 2 to 16 As shown, in some embodiments, an air-compensating gap 120 may be formed between the outer ring disk 122 and the center disk 121. The air-compensating gap 120 may connect the space above the top of the furnace pan 12 and the space below the bottom of the furnace pan 12.

[0104] In some embodiments, the air supply gap 120 can be connected to the space above the inner ring fire cover 2. When the gas burns in the outer ring fire seam 31 of the outer ring fire cover 3, the air in the external space can be supplied to the top area of ​​the inner ring fire cover 2 through the air supply gap 120 for secondary air supply, thereby improving the combustion efficiency of the flame in the inner ring fire seam 21.

[0105] See also Figures 2 to 16 As shown, in some embodiments, the furnace plate 12 may include a connecting pipe 123. The connecting pipe 123 may be disposed between the outer ring plate 122 and the center plate 121. A gas channel 1231 may be formed inside the connecting pipe 123. The outer end of the connecting pipe 123 may be connected to the inner side wall of the outer ring plate 122, so that the outer end of the gas channel 1231 may be connected to the outer ring fire cavity 30. The inner end of the connecting pipe 123 may be connected to the outer side wall of the center plate 121, so that the inner end of the gas channel 1231 may be connected to the outer gas mixing channel 114.

[0106] In some embodiments, the furnace plate 12 may include a plurality of connecting pipes 123. The plurality of connecting pipes 123 may be arranged circumferentially at intervals on the outer periphery of the center plate 121. The plurality of connecting pipes 123 may be arranged at intervals between the outer ring plate 122 and the center plate 121. Therefore, a plurality of gas channels 1231 may be formed between the outer gas mixing channel 114 and the outer ring fire cavity 30, thereby improving the efficiency of the outer gas mixing channel 114 in conveying gas into the outer ring fire cavity 30. It should be noted that the number of connecting pipes 123 may be adjusted as needed, and is not limited here.

[0107] See also Figures 1 to 16 As shown, in some embodiments, a fire transfer slit 332 may be provided on the outer fire ring cover 3. The fire transfer slit 332 may be provided on the outer top cover 33. The fire transfer slit 332 may be communicated with the outer fire ring cavity 30. The fire transfer slit 332 may be arranged to extend in the radial direction of the outer fire ring cover 3. The outer end of the fire transfer slit 332 may be communicated with the outer fire ring slit 31. The inner end of the fire transfer slit 332 may extend to the inner edge of the outer fire ring cover 3. The flame generated at the inner fire ring slit 21 may be transferred to the outer fire ring slit 31 through the fire transfer slit 332.

[0108] In some embodiments, the inner end of the fire transfer seam 332 and the inner edge of the outer fire ring cover 3 may be spaced apart so that the inner edge of the outer fire ring cover 3 is a continuous ring structure to improve the structural strength of the outer fire ring cover 3 .

[0109] In some embodiments, an ignition needle (not shown) may be provided in the burner head 1. The ignition needle may be provided in the gas supply gap 120. The ignition needle may be arranged at the periphery of the outer ring fire gap 31. Therefore, the gas in the inner ring fire gap 21 can flow to the vicinity of the ignition needle and then be ignited by the ignition needle.

[0110] 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 gas stove, comprising a burner, characterized in that: The burner comprises: 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 bottom of the inner ring fire cover and the top of the burner head; An outer ring fire cover, which is disposed on 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 between the bottom of the outer ring fire cover and the top of the burner head; Wherein, an outer ring fire seam which is circumferentially arranged is provided on the outer peripheral wall of the outer ring fire cover, an outer port of the outer ring fire seam is arranged toward the outer periphery of the outer ring fire cover, and an inner port of the outer ring fire seam is connected to the outer ring fire cavity; In the direction from the inner end of the outer ring fire seam toward the outer end thereof, the outer ring fire seam is arranged to extend upwardly in an inclined manner; The top surface of the outer ring fire cover can cover the outer port of the outer ring fire seam.

2. The gas stove according to claim 1, characterized in that: The outer ring fire seam is formed by circumferentially rotating and cutting the outer peripheral wall of the outer ring fire cover.

3. The gas stove according to claim 2, characterized in that: The outer ring fire cover comprises an outer top cover, an outer bottom ring and a first connecting rib; The outer bottom ring is arranged below the bottom of the outer peripheral edge of the outer top cover, and the outer ring fire seam is formed between the bottom surface of the outer top cover and the top surface of the outer bottom ring; The first connecting rib is arranged at the inner port of the outer ring fire seam, and the first connecting rib is arranged to extend vertically; the first connecting rib is protruding on the inner side walls of the outer top cover and the outer bottom ring, the upper end of the first connecting rib is connected to the outer top cover, and the lower end of the first connecting rib is connected to the outer bottom ring, so that the outer top cover can be supported above the top of the outer bottom ring through the first connecting rib.

4. The gas stove according to claim 1, characterized in that: In the direction from the inner end of the outer ring fire seam toward the outer end thereof, the width of the outer ring fire seam gradually increases.

5. The gas stove according to claim 1, characterized in that: A vertically extending external gas mixing channel is provided at the center of the burner head, the external ring fire cavity is arranged at intervals on the outer periphery of the external gas mixing channel, and a gas channel is provided between the external gas mixing channel and the external ring fire cavity; The inner end of the gas channel is connected to the outer gas mixing channel, and the outer end of the gas channel is connected to the outer ring fire cavity; In a direction from the inner end of the gas channel toward the outer end thereof, the gas channel is arranged to extend upwardly at an inclination.

6. The gas stove according to claim 5, characterized in that: The angle between the inclined extension direction of the gas channel and the horizontal plane is α, and the angle range of α is between 15 degrees and 30 degrees.

7. The gas stove according to claim 1, characterized in that: A fixing column is convexly provided on the bottom surface of the outer ring fire cover, and a threaded hole is provided in the fixing column; The top of the furnace head is provided with a mounting hole which is arranged to penetrate vertically, and the threaded hole is arranged vertically opposite to the mounting hole, so that the fixing column can be detachably fixed at the mounting hole.

8. The gas stove according to claim 1, characterized in that: An inner ring fire seam is arranged circumferentially on the outer peripheral wall of the inner ring fire cover, the outer port of the inner ring fire seam is arranged toward the outer periphery of the inner ring fire cover, and the inner port of the inner ring fire seam is connected to the inner ring fire cavity; In the direction from the inner end of the inner ring fire seam toward the outer end thereof, the inner ring fire seam is arranged to extend upwardly in an inclined manner; The top surface of the inner ring fire cover can cover the outer port of the inner ring fire seam.

9. The gas stove according to claim 8, characterized in that: The inner ring fire seam is formed by circumferentially rotating and cutting the outer peripheral wall of the inner ring fire cover.

10. The gas stove according to claim 9, characterized in that: In the direction from the inner end of the inner ring fire seam toward the outer end thereof, the width of the inner ring fire seam gradually increases.

11. The gas stove according to claim 9, characterized in that: The inner ring fire cover comprises an inner top cover, an inner bottom ring portion and a second connecting rib; The inner bottom ring is arranged below the bottom of the outer peripheral edge of the inner top cover, and the inner ring fire seam is formed between the bottom surface of the inner top cover and the top surface of the inner bottom ring; The second connecting rib is arranged at the inner port of the inner ring fire seam, and the second connecting rib is arranged to extend vertically; the second connecting rib is protruding on the inner side walls of the inner top cover and the inner bottom ring, the upper end of the second connecting rib is connected to the inner top cover, and the lower end of the second connecting rib is connected to the inner bottom ring, so that the inner top cover can be supported above the top of the inner bottom ring through the second connecting rib.

12. A gas stove, comprising a burner, characterized in that: The burner comprises: 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 bottom of the inner ring fire cover and the top of the burner head; 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 between the bottom of the outer ring fire cover and the top of the burner head; Wherein, an inner ring fire seam which is arranged circumferentially is provided on the outer peripheral wall of the inner ring fire cover, the outer port of the inner ring fire seam is arranged toward the outer periphery of the inner ring fire cover, and the inner port of the inner ring fire seam is connected to the inner ring fire cavity; In the direction from the inner end of the inner ring fire seam toward the outer end thereof, the inner ring fire seam is arranged to extend upwardly in an inclined manner; The inner ring fire seam is formed by circumferentially rotating and cutting the outer peripheral wall of the inner ring fire cover, and the top surface of the inner ring fire cover can cover the outer port of the inner ring fire seam.

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