Combustor and gas stove

Abstract

The application relates to the technical field of cooking utensils, in particular to a burner and a gas stove. The burner comprises a burner head and an outer ring fire cover installed on the burner head; the burner head is provided with a first annular wall, a second annular wall and two limiting walls, and the first annular wall and the second annular wall define an annular gas groove; the two limiting walls are arranged in the annular gas groove at intervals, and a gas transmission channel is defined between the two limiting walls and communicates with the annular gas groove; the top wall of the outer ring fire cover is provided with a fire transmission groove opposite to the gas transmission channel, and the fire transmission groove communicates with the gas transmission channel; wherein the top ends of the two limiting walls jointly define a first positioning part, the top wall of the outer ring fire cover is provided with a second positioning part, the second positioning part cooperates with the first positioning part to limit the rotation of the outer ring fire cover relative to the burner head, and the fire transmission groove passes through the second positioning part. The burner has high fire transmission stability and success rate, and avoids the misalignment between the outer ring fire cover and the burner head, thereby guaranteeing the fire outlet effect of the outer ring fire cover.

Description

Technical Field

[0001] This application relates to the field of stove technology, and in particular to a burner and a gas stove. Background Technology

[0002] With increasing awareness of environmental protection and cost, copper burner caps are gradually being replaced by stainless steel burner caps. Stainless steel burner caps are generally made through a stretching process. Due to the thickness limitations of stainless steel, it cannot provide a stable gas flow path for combustion, resulting in unstable flue gas and poor combustion conditions.

[0003] Currently, the burner includes a burner head and an inner ring flame cap and an outer ring flame cap respectively installed on the burner head. The top of the outer wall of the burner head extends into the outer ring flame cap. Multiple grooves are provided at the top of the outer wall of the burner head. Multiple flame holes are provided on the outer wall of the outer ring flame cap. The positions of the multiple flame holes correspond one-to-one with the multiple grooves. The grooves extend the depth of the flame holes to provide a stable gas passage.

[0004] However, misalignment can easily occur between the outer ring burner cap and the burner head, affecting the flame output of the outer ring burner cap. Utility Model Content

[0005] Based on this, this application provides a burner and a gas stove to solve the problem of misalignment between the outer ring burner cap and the burner head in related technologies.

[0006] In a first aspect, embodiments of this application provide a burner, including a burner head and an outer ring flame cap mounted on the burner head;

[0007] The burner head is provided with a first annular wall, a second annular wall and two limiting walls. The first annular wall is arranged around the outside of the second annular wall and spaced apart from the second annular wall. An annular gas groove is defined between the first annular wall and the second annular wall. The annular gas groove is connected to the inside of the outer ring burner cover.

[0008] Two limiting walls are spaced apart in the annular air groove, and an air transmission channel is defined between the two limiting walls. The air transmission channel is connected to the annular air groove.

[0009] The top wall of the outer ring flame cap is provided with a flame transmission groove facing the gas transmission channel, and the flame transmission groove is connected to the gas transmission channel.

[0010] The tops of the two limiting walls together define the first positioning part, and the top wall of the outer ring burner is provided with a second positioning part. The second positioning part cooperates with the first positioning part to restrict the outer ring burner from rotating relative to the furnace head, and the flame transfer groove passes through the second positioning part.

[0011] In one possible implementation, the first positioning part is a positioning boss protruding upward from the top of the limiting wall, and the second positioning part is a positioning groove set on the top wall of the outer ring fire cover facing the furnace head, with the positioning boss extending into the positioning groove.

[0012] In one possible implementation, the top wall of the outer ring burner is provided with an upwardly protruding part, and the side of the protrusion facing the burner head defines a positioning groove.

[0013] In one possible implementation, along the circumference of the first annular wall, the positioning groove includes two opposing first guide sidewalls, the distance between the two first guide sidewalls gradually decreasing from bottom to top, and the top of the positioning boss located between the two first guide sidewalls.

[0014] In one possible implementation, the positioning groove includes two opposing second guide sidewalls along the radial direction of the first annular wall, the distance between the two second guide sidewalls gradually decreasing from bottom to top, and the top of the positioning boss located between the two second guide sidewalls.

[0015] In one possible implementation, the two ends of each limiting wall are connected to the first annular wall and the second annular wall, respectively, and the limiting wall is provided with a connecting part that connects the air transmission channel and the annular air groove.

[0016] In one possible implementation, the connecting part is an air intake slot located at the top of the limiting wall.

[0017] In one possible implementation, multiple air inlet slots are provided on each limiting wall, and the first positioning part is located between two adjacent air inlet slots.

[0018] In one possible implementation, the burner head includes an air intake channel communicating with an annular air groove, and a limiting wall is disposed away from the air intake channel.

[0019] Secondly, embodiments of this application provide a gas stove, including the burner described above.

[0020] The burner and gas stove provided in this application include a burner head and an outer ring flame cap mounted on the burner head. A first and second annular wall of the burner head define an annular gas groove. Two limiting walls of the burner head are spaced apart in the annular gas groove, defining a gas transmission channel communicating with the annular gas groove between the two limiting walls. The top wall of the outer ring flame cap has a flame transmission groove facing the gas transmission channel, and the flame transmission groove communicates with the gas transmission channel. During combustion, a portion of the gas in the annular gas groove can be ejected sequentially through the gas transmission channel and the flame transmission groove, thereby forming a flame at the position of the flame transmission groove, facilitating the outward transmission of the flame on the inner ring flame cap. The tops of the two limiting walls together define a first positioning part, and the top wall of the outer ring flame cap has a second positioning part. The second positioning part cooperates with the first positioning part to restrict the rotation of the outer ring flame cap relative to the burner head, and the flame transmission groove passes through the second positioning part. After the outer ring burner cap is fastened onto the burner head, the two can be positioned by the cooperation between the second positioning part and the first positioning part. The outer ring burner cap will not rotate relative to the burner head, avoiding misalignment between the outer ring burner cap and the burner head and ensuring the flame output effect of the outer ring burner cap. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the burner provided in an embodiment of this application;

[0023] Figure 2 Exploded view of the burner provided in the embodiments of this application;

[0024] Figure 3 A cross-sectional view of a burner provided in an embodiment of this application;

[0025] Figure 4 for Figure 1 A magnified view of a portion of point A in the middle;

[0026] Figure 5 for Figure 2 A magnified view of a portion of point B in the middle;

[0027] Figure 6 for Figure 3 A magnified view of a portion of point C.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100-Furnace head; 110-First annular wall; 120-Second annular wall; 130-Limiting wall; 131-Positioning boss; 132-Air inlet groove; 140-Annular air groove; 150-Air transmission channel;

[0030] 200 - Outer ring flame cap; 210 - Flame transfer groove; 220 - Positioning groove; 230 - Protrusion; 231 - First guide sidewall; 232 - Second guide sidewall;

[0031] 300-Inner ring flame cap. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] The terms “first,” “second,” and “third” (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0036] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0037] In existing technology, a burner includes a burner head and inner and outer ring flame covers respectively installed on the burner head. The top of the outer wall of the burner head extends into the outer ring flame cover, and multiple grooves are provided at the top of the outer wall of the burner head. The outer wall of the outer ring flame cover has multiple flame holes, the positions of which correspond one-to-one with the grooves. The grooves extend the depth of the flame holes to provide a stable gas flow path. However, the outer ring flame cover is generally directly placed on the burner head, and misalignment can easily occur between the outer ring flame cover and the burner head, affecting the flame output of the outer ring flame cover. In addition, after the burner is ignited, the flame is generated on the inner ring flame cover first, and the flame on the inner ring flame cover needs to be transmitted outward to generate a flame on the outer ring flame cover, resulting in low flame transmission stability and success rate of the burner.

[0038] After repeated consideration and verification, the inventors discovered that by setting positioning parts on both the outer ring burner cap and the burner head, the outer ring burner cap and the burner head can be positioned by the two positioning parts, and the cooperation between the two positioning parts can prevent the outer ring burner cap from rotating relative to the burner head. Furthermore, by setting two limiting walls on the burner head, a gas transmission channel is defined between the two limiting walls, allowing the gas in the burner head to enter the gas transmission channel. A flame transmission groove is opened on the outer ring burner cap, through which the gas in the gas transmission channel can flow out. This flame transmission groove facilitates the outward transmission of the flame on the inner ring burner cap. The positioning parts on the burner head are located on the two limiting walls, which helps to simplify the burner structure.

[0039] In view of this, the inventors designed a burner and gas stove. Two spaced-apart limiting walls are set in the annular gas groove of the burner head, defining a gas transmission channel between the two walls, which communicates with the annular gas groove. A flame transmission groove communicating with the gas transmission channel is set on the outer ring burner cap, improving the burner's flame transmission stability and success rate. The tops of the two limiting walls together define a first positioning part, and a second positioning part is provided on the top wall of the outer ring burner cap. The cooperation between the first and second positioning parts restricts the rotation of the outer ring burner cap relative to the burner head.

[0040] The technical solutions of the burner and gas stove provided in the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0041] Reference Figures 1 to 5 As shown in the embodiment of this application, the gas stove includes a burner head 100 and an outer ring burner cap 200 installed on the burner head 100. The outer ring burner cap 200 has a ring-shaped structure and can cover the burner head 100. An outer ring burner hole is provided on the outer wall of the outer ring burner cap 200, through which gas can be ejected from the burner head 100, thereby generating a flame at the location of the outer ring burner hole.

[0042] The burner head 100 is provided with a first annular wall 110, a second annular wall 120 and two limiting walls 130. The first annular wall 110 is arranged around the outside of the second annular wall 120 and spaced apart from the second annular wall 120. An annular gas groove 140 is defined between the first annular wall 110 and the second annular wall 120. The annular gas groove 140 communicates with the interior of the outer ring burner cover 200.

[0043] Schematic, the first annular wall 110 and the second annular wall 120 are coaxially arranged. After the outer annular flame cap 200 is installed on the burner head 100, the top ends of the first annular wall 110 and the second annular wall 120 can respectively extend into the interior of the outer annular flame cap 200. Gas can flow into the outer annular flame cap 200 through the annular gas groove 140 of the burner head 100 and flow out from the outer annular flame hole.

[0044] Two limiting walls 130 are spaced apart within the annular gas groove 140, defining a gas transmission channel 150 between them. The gas transmission channel 150 communicates with the annular gas groove 140. The two limiting walls 130 can be arranged parallel to each other, and each limiting wall 130 can be integrally formed within the annular gas groove 140. When the gas enters the annular gas groove 140 of the burner head 100, a portion of the gas in the annular gas groove 140 can flow into the gas transmission channel 150. Those skilled in the art can adjust the spacing between the two limiting walls 130 as needed, thereby adjusting the width of the gas transmission channel 150; no single limitation is made here.

[0045] The top wall of the outer ring burner cap 200 is provided with a flame transfer groove 210 facing the gas transfer channel 150, and the flame transfer groove 210 is connected to the gas transfer channel 150. The flame transfer groove 210 can be integrally formed onto the outer ring burner cap 200. Schematic, after the outer ring burner cap 200 is installed on the burner head 100, the flame transfer groove 210 is located above the gas transfer channel 150, and the gas in the gas transfer channel 150 can flow out from the flame transfer groove 210.

[0046] like Figures 1-3 As shown, the burner also includes an inner ring burner cap 300 located inside the outer ring burner cap 200. After ignition, a flame is generated first at the inner ring burner cap 300. The flame transfer groove 210 extends from the side of the outer ring burner cap 200 toward the inner ring burner cap 300 to the side of the outer ring burner cap 200 away from the inner ring burner cap 300. The extension direction of the gas transfer passage 150 is the same as the extension direction of the flame transfer groove 210. When a flame is generated at the inner ring burner cap 300, the flame at the inner ring burner cap 300 can ignite the gas flowing out from the flame transfer groove 210 to ignite the flame at the flame transfer groove 210. The flame at the flame transfer groove 210 can ignite the gas ejected from the outer ring burner hole.

[0047] The tops of the two limiting walls 130 together define the first positioning part, and the top wall of the outer ring burner cover 200 is provided with a second positioning part. The second positioning part cooperates with the first positioning part to restrict the rotation of the outer ring burner cover 200 relative to the burner head 100. The flame transfer groove 210 passes through the second positioning part.

[0048] In one possible implementation, the first positioning part can be a positioning shaft extending upward from the top of the limiting wall 130, and the second positioning part can be a positioning hole opened in the top wall of the outer ring burner cap 200. When the outer ring burner cap 200 is installed on the burner head 100, the positioning shaft passes through the positioning hole, and the rotation of the outer ring burner cap 200 relative to the burner head 100 is restricted by the cooperation between the positioning shaft and the positioning hole. The first positioning part is defined by the tops of the two limiting walls 130, avoiding the need to set additional first positioning parts at other positions of the burner head 100. The two limiting walls 130 can serve both a positioning function and a function of forming the gas transmission channel 150, which helps to simplify the structure of the burner.

[0049] In the burner provided in this embodiment, during combustion, a portion of the gas in the annular gas groove 140 can be ejected sequentially through the gas transmission channel 150 and the flame transmission groove 210, thereby forming a flame at the position of the flame transmission groove 210. This facilitates the outward transmission of the flame on the inner ring burner cap 300, improving the burner's flame transmission stability and success rate. After the outer ring burner cap 200 is fastened onto the burner head 100, the positioning of the two can be achieved through the cooperation between the second positioning part and the first positioning part. Furthermore, the outer ring burner cap 200 will not rotate relative to the burner head 100, preventing misalignment between the outer ring burner cap 200 and the burner head 100 and ensuring the flame output effect of the outer ring burner cap 200.

[0050] In one embodiment, the burner head 100 includes an air intake passage (not shown) communicating with an annular air groove 140, and a limiting wall 130 is disposed away from the air intake passage.

[0051] One end of the air intake channel is connected to the annular gas groove 140, and the other end of the air intake channel can be connected to a gas pipeline. Gas can be introduced into the annular gas groove 140 through the gas pipeline and the air intake channel. Those skilled in the art will understand that when gas is introduced into the annular gas groove 140, the gas pressure near the air intake channel is higher, and the gas pressure further away from the air intake channel is lower. The limiting wall 130 can be located on the side of the first annular wall 110 away from the air intake channel.

[0052] With the above settings, the high pressure of the gas ejected at the flame transfer groove 210 position can be avoided, thereby preventing flameout at the flame transfer groove 210 position and ensuring that the flame at the inner ring burner 300 position can be reliably transmitted outward through the flame transfer groove 210.

[0053] In one embodiment, such as Figures 2 to 6As shown, the first positioning part is a positioning boss 131 protruding upward from the top of the limiting wall 130, and the second positioning part is a positioning groove 220 provided on the top wall of the outer ring fire cover 200 facing the furnace head 100, with the positioning boss 131 extending into the positioning groove 220.

[0054] Schematic illustration: the height of a portion of the limiting wall 130 is greater than the height of the rest, and the higher portion of the limiting wall 130 defines the positioning boss 131. The opening of the positioning groove 220 faces the annular gas groove 140. When the positioning boss 131 extends into the positioning groove 220, the top of the positioning boss 131 can abut against the bottom of the positioning groove 220. Understandably, after the positioning boss 131 extends into the positioning groove 220, the sidewall of the positioning groove 220 surrounds the positioning boss 131, which can restrict the outer ring flame cap 200 from causing the positioning groove 220 to rotate relative to the positioning boss 131.

[0055] With this structure, the first positioning part and the second positioning part can be quickly engaged, and the outer ring burner cover 200 can be quickly positioned with the burner head 100 during installation, making it convenient for users to install the outer ring burner cover 200 on the burner head 100.

[0056] In other embodiments, the top ends of the two limiting walls 130 together serve as the first positioning part. When the outer ring flame cover 200 is installed on the burner head 100, the top ends of the limiting walls 130 extend into the positioning groove 220 to restrict the outer ring flame cover 200 from rotating relative to the burner head 100.

[0057] In a specific embodiment, such as Figures 2 to 6 As shown, the top wall of the outer ring flame cap 200 is provided with an upwardly protruding part 230, and the inner wall of the protruding part 230 defines a positioning groove 220.

[0058] The protrusion 230 can be formed on the top wall of the outer ring flame cap 200 by stamping, and the height of the protrusion 230 matches the depth of the positioning groove 220. The height of the protrusion 230 can be set as needed and is not limited here.

[0059] The above-described configuration facilitates the placement of the second positioning part on the outer ring burner cap 200, which helps improve the burner's production efficiency. Furthermore, when soup or other liquids fall onto the outer ring burner cap 200, the liquid will not accumulate in the second positioning part, preventing it from affecting the ignition transmission effect of the ignition channel 210.

[0060] In other embodiments, the protrusion 230 on the outer ring flame cover 200 can protrude toward the direction of the annular gas groove 140, and the first positioning part can be a recessed part provided at the top of the limiting wall 130. When the outer ring flame cover 200 is installed on the burner head 100, the end of the protrusion 230 extends into the recessed part.

[0061] In other embodiments, a portion of the top wall of the outer ring flame cap 200 is thinner, and this thinner portion defines a positioning groove 220 in the top wall of the outer ring flame cap 200.

[0062] In one possible implementation, such as Figure 4 As shown, along the circumference of the first annular wall 110, the protrusion 230 includes two opposing first guide sidewalls 231. The distance between the two first guide sidewalls 231 gradually decreases from bottom to top, and the top of the positioning boss 131 is located between the two first guide sidewalls 231.

[0063] like Figure 4 As shown, the extension direction of the first guide sidewall 231 can be inclined to the height direction of the protrusion 230. The angle between the first guide sidewall 231 and the height direction of the protrusion 230 can be set as needed and is not limited here. In other embodiments, the first guide wall can also be an arc-shaped wall. The two first guide walls can restrict the movement of the outer ring burner cap 200 relative to the burner head 100 along the circumference of the first annular wall 110.

[0064] In this structure, the opening of the positioning groove 220 has a relatively large circumferential dimension along the first annular wall 110, making it easier for the user to align the opening of the positioning groove 220 with the top of the positioning boss 131. Once the top of the positioning boss 131 extends into the positioning groove 220, it is guided towards the bottom of the positioning groove 220 by the two first guide sidewalls 231. In other words, the two first guide sidewalls 231 improve the positioning efficiency between the outer ring burner cap 200 and the burner head 100.

[0065] like Figures 4-6 As shown, along the radial direction of the first annular wall 110, the protrusion 230 includes two opposing second guide sidewalls 232, the distance between the two second guide sidewalls 232 gradually decreases from bottom to top, and the top of the positioning boss 131 is located between the two second guide sidewalls 232.

[0066] The second guide wall 232 can be an arc-shaped wall or an inclined wall that is tilted in the height direction of the protrusion 230. The two second guide walls can restrict the movement of the outer ring burner cap 200 relative to the burner head 100 along the radial direction of the first annular wall 110.

[0067] The opening of the positioning groove 220 has a relatively large radial dimension along the first annular wall 110, which facilitates the user in aligning the opening of the positioning groove 220 with the top of the positioning boss 131. After the top of the positioning boss 131 extends into the positioning groove 220, it can be guided by the two first guide sidewalls 231 to move towards the bottom of the positioning groove 220. In other words, the two first guide sidewalls 231 can improve the positioning efficiency between the outer ring burner cover 200 and the burner head 100.

[0068] In one embodiment, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the two ends of each limiting wall 130 are connected to the first annular wall 110 and the second annular wall 120 respectively, and the limiting wall 130 is provided with a connecting part that connects the air transmission channel 150 and the annular air groove 140.

[0069] The two ends of the limiting wall 130 can be integrally formed and connected to the first annular wall 110 and the second annular wall 120 respectively. The first annular wall 110 and the second annular wall 120 can improve the structural strength of the limiting wall 130, making the limiting wall 130 less prone to deformation. The connecting part can be integrally formed on the limiting wall 130, and the gas in the annular gas groove 140 can enter the gas transmission channel 150 through the connecting part.

[0070] In a specific embodiment, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the connecting part is an air intake groove 132 opened at the top of the limiting wall 130.

[0071] The cross-sectional shape of the air inlet groove 132 can be approximately rectangular, and the depth of the air inlet groove 132 is less than the height of the limiting wall 130. The air inlet groove 132 extends through the limiting wall 130 along its thickness direction. The air inlet groove 132 can be integrally formed on the limiting wall 130, with its opening facing upwards. When the outer ring burner cap 200 is installed on the burner head 100, the outer ring burner cap 200 does not block the air inlet groove 132, allowing the gas in the annular gas groove 140 to flow into the gas transmission channel 150 via the air inlet groove 132.

[0072] This structure facilitates the placement of the connecting part on the limiting wall 130, which helps improve the production efficiency of the burner.

[0073] In other embodiments, the connecting portion can be a connecting hole formed on the limiting wall 130, the connecting hole penetrating the limiting wall 130 along the thickness direction of the limiting wall 130, and the gas in the annular gas groove 140 can flow into the gas transmission channel 150 through the connecting hole.

[0074] like Figures 2 to 6 As shown, each limiting wall 130 has multiple air inlet slots 132, and the first positioning part is located between two adjacent air inlet slots 132.

[0075] The number of air intake slots 132 can be two, three, or four, etc., and is not limited to a single one. For example Figure 5As shown, when two air inlet slots 132 are provided on the limiting wall 130, the positioning boss 131 is located between the two air inlet slots 132. For example, the width of the positioning boss 131 can be the same as the spacing width between the two air inlet slots 132.

[0076] With the above settings, when gas is introduced into the burner head 100, the amount of gas in the gas transmission channel 150 can be guaranteed, ensuring that the flame at the inner ring burner cover 300 can be reliably transmitted outward through the flame transmission groove 210.

[0077] This application also provides a gas stove, including the burner described above.

[0078] The gas stove can be an integrated stove or a countertop stove, etc. The gas stove provided in this application, due to the use of the aforementioned burner, has high flame transmission stability and success rate. Furthermore, there is no misalignment between the outer ring burner cap 200 and the burner head 100, resulting in better flame output from the outer ring burner cap 200. This allows the gas stove to fully heat cookware, improving the user experience.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A burner, characterized in that, Includes a burner head and an outer ring flame cap installed on the burner head; The burner head is provided with a first annular wall, a second annular wall and two limiting walls. The first annular wall is arranged around the outside of the second annular wall and spaced apart from the second annular wall. An annular gas groove is defined between the first annular wall and the second annular wall. The annular gas groove communicates with the interior of the outer ring burner cover. Two limiting walls are spaced apart within the annular air groove, and an air transmission channel is defined between the two limiting walls. The air transmission channel is connected to the annular air groove. The top wall of the outer ring flame cap is provided with a flame transfer groove facing the gas transfer channel, and the flame transfer groove is connected to the gas transfer channel. The top ends of the two limiting walls together define the first positioning part, and the top wall of the outer ring flame cover is provided with a second positioning part. The second positioning part cooperates with the first positioning part to restrict the rotation of the outer ring flame cover relative to the furnace head, and the flame transfer groove passes through the second positioning part.

2. The burner according to claim 1, characterized in that, The first positioning part is a positioning boss protruding upward from the top of the limiting wall, and the second positioning part is a positioning groove provided on the top wall of the outer ring fire cover facing the furnace head, with the positioning boss extending into the positioning groove.

3. The burner according to claim 2, characterized in that, The top wall of the outer ring fire cover is provided with an upwardly protruding part, and the inner wall of the protruding part defines the positioning groove.

4. The burner according to claim 3, characterized in that, Along the circumference of the first annular wall, the protrusion includes two opposing first guide sidewalls, the distance between the two first guide sidewalls gradually decreasing from bottom to top, and the top of the positioning boss is located between the two first guide sidewalls.

5. The burner according to claim 3, characterized in that, Along the radial direction of the first annular wall, the protrusion includes two opposing second guide sidewalls, the distance between the two second guide sidewalls gradually decreasing from bottom to top, and the top of the positioning boss is located between the two second guide sidewalls.

6. The burner according to claim 1, characterized in that, Each of the limiting walls is connected to the first annular wall and the second annular wall at both ends, and the limiting wall is provided with a connecting part that connects the air transmission channel and the annular air groove.

7. The burner according to claim 6, characterized in that, The connecting part is an air inlet slot formed at the top of the limiting wall.

8. The burner according to claim 7, characterized in that, Each of the limiting walls is provided with a plurality of air inlet slots, and the first positioning part is located between two adjacent air inlet slots.

9. The burner according to claim 1, characterized in that, The burner head includes an air intake channel communicating with the annular air groove, and the limiting wall is disposed away from the air intake channel.

10. A gas stove, characterized in that, The burner includes any one of claims 1-9.

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