Combustor and gas stove

Abstract

The utility model provides a burner and a gas stove, the burner comprises a furnace end, the top of the furnace end is provided with a gas injection structure; the main body part comprises a combustion structure and a pot support which are connected with each other, and an injection pipe is arranged at the bottom of the combustion structure; the main body part is detachably installed on the gas injection structure, and a gas injection opening of the gas injection structure corresponds to the air inlet end of the injection pipe. According to the gas stove, the main body part is detachably arranged on the gas injection structure, namely, the main body part is supported only by using the necessary gas injection structure, so that the main body part is mounted, the structure on a panel of the gas stove is simplified, the gas stove is simpler, meanwhile, the main body part can be integrally detached from the gas injection structure, and the gas stove is more convenient to use. In addition, a fixing structure does not need to be arranged between a fire cover seat and a fire cover of the combustion structure, the structure of the combustor can be simplified, and the production cost of the gas stove can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen stove technology, specifically relating to a burner and a gas stove equipped with the burner. Background Technology

[0002] As a common cooking tool in daily life, people are increasingly demanding higher standards of hygiene and cleanliness for gas stoves.

[0003] Gas stoves generally have a panel, burners, and a combustion structure and pot support set above the panel. The combustion structure consists of a burner base and a burner. During use, the panel below the burner base and pot support is often not cleaned, especially for gas stoves with top air intake. The gap between the burner base and the panel is small, making it impossible to insert cleaning tools, thus creating a dead corner for hygiene.

[0004] To address this issue, Chinese invention patent application number CN201811230937.2 discloses a two-ring gas stove with a rotatable burner. It integrates the burner base, center burner cap, outer ring burner cap, pot support, and rotatable support base into one unit. A pivot joint is fixed on the panel, and the rotatable support base rotates with the pivot joint through a rotating base, allowing the burner, composed of the burner base, center burner cap, outer ring burner cap, pot support, and rotatable support base, to rotate relative to the panel.

[0005] While this solution enables cleaning of the panel beneath the pot support and burner holder, it creates a complex installation structure on the panel. In particular, after prolonged use, a stubborn cleaning dead zone forms at the pivot joint located behind the burner, directly exposed to the user and impacting the user experience. Furthermore, this solution requires fixing the center and outer ring burner caps to the burner holder, necessitating additional fixing structures between them, increasing production costs and the difficulty of assembly and disassembly.

[0006] In view of this, this utility model is proposed. Utility Model Content

[0007] This utility model provides a burner that uses only the necessary gas injection structure to support the main body, which simplifies the structure on the gas stove panel and makes the gas stove more concise. At the same time, the main body can be removed as a whole from the gas injection structure, avoiding the main body from obstructing cleaning, and there is no need to set a fixing structure between the burner cap seat and the burner cap of the combustion structure. This solves the problem of difficult cleaning caused by the complex installation structure of existing burners.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0009] A burner, comprising:

[0010] The burner head has a gas injection structure at its top;

[0011] The main body includes an interconnected combustion structure and a boiler support frame, with an ejector tube at the bottom of the combustion structure;

[0012] The main body is detachably mounted on the gas injection structure, and the gas injection port of the gas injection structure corresponds to the air inlet end of the ejector tube.

[0013] Furthermore, the gas injection structure is located below the combustion structure, supporting the main body from the bottom of the combustion structure;

[0014] Preferably, the combustion structure is installed on top of the gas injection structure, and the gas injection port is located on the side of the gas injection structure.

[0015] Furthermore, the gas injection structure is provided with multiple gas injection components arranged at intervals along the circumference of the combustion structure;

[0016] Preferably, the bottom of the combustion structure is provided with multiple ejector tubes; the gas injection structure has a gas injection port and multiple ejector tubes corresponding one-to-one with the bottom of the combustion structure; or, at least one gas injection structure has multiple gas injection ports corresponding to the multiple ejector tubes respectively.

[0017] Preferably, the gas injection structure is positioned close to the bottom edge of the combustion structure.

[0018] Furthermore, the combustion structure includes an inner ring mixing chamber and an outer ring mixing chamber, and the ejector tube includes a first ejector tube communicating with the inner ring mixing chamber and a second ejector tube communicating with the outer ring mixing chamber; the air inlet ends of the first ejector tube and the second ejector tube are both located close to the outer periphery of the outer ring mixing chamber, and the gas injection structures corresponding to the air inlet ends of the first ejector tube and the second ejector tube are both located directly below the outer ring mixing chamber;

[0019] Preferably, the first ejector tube and the second ejector tube extend tangentially along the inner ring mixing cavity and the outer ring mixing cavity, respectively.

[0020] Furthermore, there are two second ejector tubes, located on opposite sides of the outer ring mixing chamber;

[0021] Preferably, the air inlets of the two second ejector tubes face the same direction, and the air inlet of the first ejector tube faces the opposite direction to the air inlet of the second ejector tube; or,

[0022] The air inlets of the two second ejector tubes face opposite directions.

[0023] Furthermore, the first ejector tube and the second ejector tube are parallel to each other.

[0024] Furthermore, a circumferential positioning structure is provided between the burner head and the main body;

[0025] Preferably, the burner head is provided with an upwardly protruding mounting part, and the main body is provided with a positioning part that cooperates with the mounting part.

[0026] Furthermore, the mounting part is columnar, and the positioning part is provided with a positioning groove corresponding to the mounting part. Along the installation direction of the main body, the positioning part is fitted onto the mounting part through the positioning groove.

[0027] Preferably, the mounting portion includes an ignition needle and / or a thermocouple, and the positioning portion extends radially along the main body and is fitted around the ignition needle and / or thermocouple via a positioning groove; and / or,

[0028] The mounting part includes a columnar protrusion, and the positioning part extends axially along the main body and is fitted onto the top of the columnar protrusion through a positioning groove.

[0029] This utility model also provides a gas stove, including the above-mentioned burner;

[0030] Preferably, the pot support includes a support ring arranged around the combustion structure, and the top of the support ring is provided with a first foot for supporting the pot.

[0031] The support ring is suspended below; or, the bottom of the support ring is provided with a second foot, the bottom of the second foot is in contact with the gas stove panel, or, there is a gap between the bottom of the second foot and the gas stove panel.

[0032] Furthermore, a U-shaped component is provided at the bottom of the second leg, which is fixed to the bottom of the second leg and covers the bottom of the second leg.

[0033] Preferably, the bottom of the second leg is lower than the bottom of the combustion structure.

[0034] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0035] 1. This utility model features a main body that is detachably mounted on top of the gas injection structure. That is, the main body is supported only by the necessary gas injection structure, which simplifies the structure on the gas stove panel and makes the gas stove more concise. At the same time, the main body can be removed from the top of the gas injection structure as a whole, which is convenient for users to clean the panel below the main body. In addition, there is no need to set a fixing structure between the burner cap seat and the burner cap of the combustion structure, which simplifies the structure of the burner and helps to reduce the production cost of the gas stove.

[0036] 2. This utility model supports the main body by setting at least three gas injection structures arranged at intervals along the circumference of the main body and supporting the bottom of the combustion structure. The gas injection structures are set near the edge of the combustion structure. On the one hand, this can ensure the stability of the support for the main body. On the other hand, the gas injection structures can be shielded by the pot support, further improving the simplicity and aesthetics of the gas stove's appearance.

[0037] 3. By setting a circumferential positioning structure between the burner head and the main body, this utility model can improve the installation accuracy of the main body, ensure that the air inlet end of the ejector tube corresponds one-to-one with the gas injection port of the gas injection structure, and enable the burner to work stably.

[0038] 4. By setting the bottom of the second leg to fit against the gas stove panel, or by providing a gap between the bottom of the second leg and the gas stove panel, this utility model can prevent obvious indentations from being left on the panel due to prolonged pressure from the second leg.

[0039] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0040] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0041] Figure 1 This is a schematic diagram of the gas stove in an embodiment of the present utility model;

[0042] Figure 2 This is an embodiment of the present utility model. Figure 1 Enlarged view of point A in the middle;

[0043] Figure 3 This is a schematic diagram of the structure of the flame cap holder and the gas injection structure in an embodiment of this utility model;

[0044] Figure 4 This is a cross-sectional view of the fit between the burner cap seat and the gas injection structure in an embodiment of this utility model;

[0045] Figure 5 This is an exploded view of the mounting structure of the main body in an embodiment of this utility model;

[0046] Figure 6 This is an embodiment of the present utility model. Figure 5 Enlarged view of point B in the middle;

[0047] Figure 7 This is a schematic diagram of the mounting structure of the main body in an embodiment of this utility model;

[0048] Figure 8 This is a cross-sectional view of the mounting structure of the ignition needle in an embodiment of this utility model;

[0049] Figure 9 This is a schematic diagram of the bottom structure of the main body in an embodiment of this utility model;

[0050] Figure 10 This is an exploded view of the assembly structure of the fire cover seat and the pot support frame in this embodiment of the present invention;

[0051] Figure 11 This is a schematic diagram of the structure of the second connecting part in an embodiment of this utility model.

[0052] Key components in the diagram: 1. Panel; 10. Housing; 11. Decorative cover; 111. First opening; 112. Second opening; 12. Mounting port; 2. Flame cap holder; 21. Inner ring mixing chamber; 211. Inner flame cap; 22. Outer ring mixing chamber; 221. Outer flame cap; 23. First ejector tube; 24. Second ejector tube; 251. First positioning part; 252. First positioning groove; 253. Second positioning part; 254. Second positioning groove; 26. Columnar protrusion; 27. Protective cover; 3. Support 31. Pot frame; 31. Support ring; 311. Bending section; 312. First extension section; 313. Second extension section; 32. First support leg; 33. Second support leg; 34. U-shaped part; 35. First connecting part; 351. Screw hole; 36. Second connecting part; 360. Connecting groove; 361. First connecting plate; 362. Second connecting plate; 3621. Through hole; 4. Burner head; 41. Ignition needle; 42. Thermocouple; 43. Gas injection structure; 431. Nozzle; 44. Ignition needle sleeve.

[0053] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0055] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0056] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0057] In the existing technology, most gas stoves are equipped with a drip tray. On the one hand, the drip tray with different shapes and textures increases the difficulty of cleaning the stove surface; on the other hand, the addition of a drip tray greatly increases the manufacturing cost of the gas stove.

[0058] To solve this technical problem, this utility model provides a gas stove, specifically, a top-intake gas stove without a liquid tray, such as... Figures 1 to 11 As shown.

[0059] Example 1

[0060] like Figures 1 to 10 As shown in the present invention, a burner is described in this embodiment. The burner includes a burner head 4 and a main body. A gas injection structure 43 is provided on the top of the burner head 4, and the main body is detachably installed on the top of the gas injection structure 43.

[0061] In this embodiment, the main body includes an interconnected combustion structure and a pot support 3.

[0062] In this embodiment, only the necessary gas injection structure 43 is used to support the main body, thus simplifying the structure of the gas stove panel 1 and making the gas stove more streamlined. Simultaneously, the main body can be detached entirely from the top of the gas injection structure 43. This allows the user to easily clean the panel 1 directly below the main body by removing the top of the gas injection structure 43, preventing the formation of unsanitary corners on the panel 1 below the combustion structure and pot support 3, and improving the user experience. Furthermore, the elimination of a fixing structure between the burner cap seat 2 and the burner cap simplifies the burner structure and helps reduce the production cost of the gas stove.

[0063] In this embodiment, the gas injection structure 43 is disposed below the combustion structure, preferably directly below it, supporting the main body from the bottom of the combustion structure. The gas injection port of the gas injection structure 43 is disposed on the side of the gas injection structure 43, corresponding to the air inlet end of the ejector tube at the bottom of the combustion structure. By disposing of the gas injection structure 43 below the combustion structure, the stability of the support for the main body can be ensured. Furthermore, the gas injection structure 43 can be shielded by the pot support 3, further improving the simplicity and aesthetics of the gas stove's appearance.

[0064] In this embodiment, the gas injection structure 43 is provided with one or more.

[0065] In some possible embodiments, the gas injection structure 43 is provided with a support portion on its top that fits against the bottom of the combustion structure. The support portion is sheet-like and extends along the bottom of the combustion structure, which can stably support the combustion structure on it and ensure the installation stability of the main body.

[0066] In some other possible embodiments, multiple gas injection structures 43 are provided, and the multiple gas injection structures 43 are arranged at intervals along the circumference of the combustion structure, supporting the bottom of the combustion structure from multiple directions to ensure the stability of the main body.

[0067] Preferably, the plurality of gas injection structures 43 are arranged close to the bottom edge of the combustion structure, which can further improve the support stability of the main body and prevent the pot from tipping over.

[0068] In this embodiment, the gas injection port of the gas injection structure 43 corresponds to the air inlet end of the ejector tube at the bottom of the combustion structure. Preferably, the gas injection port and the ejector tube are coaxial.

[0069] In this embodiment, the number of ejector tubes at the bottom of the combustion structure is greater than or equal to the number of gas injection structures 43. Specifically, when the number of ejector tubes is equal to the number of gas injection structures 43, a single gas injection mechanism has only one gas injection port, corresponding to the air inlet end of the ejector tube; when the number of ejector tubes is greater than the number of gas injection structures 43, at least one gas injection structure 43 has multiple gas injection ports corresponding to the multiple ejector tubes respectively.

[0070] In this embodiment, a gas injection structure 43 has at least one gas injection port.

[0071] Preferably, in this embodiment, the bottom of the combustion structure is provided with multiple ejector tubes, and the gas injection structure 43 is provided with multiple ejector tubes corresponding one-to-one with the bottom of the combustion structure, and each gas injection structure 43 has a gas injection port.

[0072] In some preferred embodiments, the gas injection structure 43 is provided with at least three.

[0073] In this embodiment, the combustion structure includes an inner ring mixing chamber 21 and an outer ring mixing chamber 22. The ejector tube includes a first ejector tube 23 communicating with the inner ring mixing chamber 21 and a second ejector tube 24 communicating with the outer ring mixing chamber 22. The air inlet ends of the first ejector tube 23 and the second ejector tube 24 are both located close to the outer periphery of the outer ring mixing chamber 22. The gas injection structure 43 corresponding to the air inlet ends of the first ejector tube 23 and the second ejector tube 24 is located directly below the outer ring mixing chamber 22. That is, the gas injection structure 43 supports the combustion structure from the bottom of the outer ring mixing chamber 22.

[0074] Specifically, in this embodiment, the combustion structure includes a burner seat 2, an inner burner cap 211, and an outer burner cap 221. The burner seat 2 includes an inner ring mixing chamber 21 and an outer ring mixing chamber 22. The outer ring mixing chamber 22 is arranged around the inner ring mixing chamber 21, and the outer periphery of the inner ring mixing chamber 21 is spaced apart from its inner periphery. The inner burner cap 211 and the outer burner cap 221 are respectively fastened to the top of the inner ring mixing chamber 21 and the top of the outer ring mixing chamber 22, and the mixture of fuel gas and air is burned on the inner burner cap 211 and the outer burner cap 221.

[0075] In this embodiment, the burner cap 2 is disc-shaped, and there are three gas injection structures 43. In the horizontal direction, these three gas injection structures 43 will not be located in the same semicircular area of ​​the disc-shaped burner cap 2 at the same time, so as to achieve stable support for the burner cap 2.

[0076] Specifically, the three gas injection structures 43 are distributed at different positions on the burner seat 2. The maximum arc length between any two gas injection structures 43 does not exceed a semicircle. That is, the central angle formed by the lines connecting any two gas injection structures 43 to the center of the burner seat 2 is less than 180 degrees, thus forming a stable triangular support structure. This distribution does not require the gas injection structures 43 to be evenly arranged, but it ensures the stability of the support for the burner seat 2.

[0077] Preferably, the distance from the gas injection structure 43 to the center of the burner seat 2 can be the same or different.

[0078] Preferably, in this embodiment, two second ejector tubes 24 are provided, located on opposite sides of the outer ring mixing chamber 22; the air inlet ends of the two second ejector tubes 24 face the same direction, while the air inlet end of the first ejector tube 23 faces the opposite direction to the air inlet ends of the second ejector tubes 24; or, the air inlet ends of the two second ejector tubes 24 face the opposite direction. This avoids the air inlet ends of the two second ejector tubes 24 and one first ejector tube 23 being concentrated on the same side of the combustion structure, ensuring the stability of the combustion structure.

[0079] Preferably, the first ejector tube 23 and the second ejector tube 24 extend tangentially along the inner ring mixing cavity 21 and the outer ring mixing cavity 22, respectively. In this embodiment, "the first ejector tube 23 extends tangentially along the inner ring mixing cavity 21" specifically means that the extension direction of the first ejector tube 23 is consistent with the extension direction of a tangent of the inner ring mixing cavity 21; "the second ejector tube 24 extends tangentially along the outer ring mixing cavity 22" specifically means that the extension direction of the second ejector tube 24 is consistent with the extension direction of a tangent of the outer ring mixing cavity 22.

[0080] Preferably, in this embodiment, the first ejector tube 23 and the second ejector tube 24 are parallel to each other.

[0081] Preferred, such as Figure 9 As shown, in this embodiment, the air inlet ends of the two second ejector tubes 24 face opposite directions, and the first ejector tube 23 and the second ejector tube 24 are parallel to each other. The first ejector tube 23 is positioned close to one of the second ejector tubes 24 that faces the same direction.

[0082] Specifically, the air inlet of one second ejector tube 24 faces the first direction, and the air inlet of the other second ejector tube 24 faces the second direction, with the first direction being opposite to the second direction. The air inlet of the first ejector tube 23 faces the first direction, and the first ejector tube 23 is positioned close to the second ejector tube 24 whose air inlet faces the first direction.

[0083] In some specific embodiments, the air outlet end of the second ejector tube 24 extends circumferentially along the outer ring mixing chamber 22, and the bottom of the air outlet end of the second ejector tube 24 gradually rises in the direction away from the air inlet end of the second ejector tube 24, thereby improving the guiding effect on the gas and primary air mixture.

[0084] In this embodiment, by setting the air inlet ends of the two second ejector tubes 24 to face opposite directions, the mixture of gas and primary air can spiral upward in the outer ring mixing chamber 22, improving the smoothness of the gas mixture guidance, ensuring the ejection effect of the primary air, and improving the uniformity of the gas and primary air mixture, thereby improving the combustion effect of the gas.

[0085] By setting the first ejector tube 23 close to a second ejector tube 24 with the same orientation, sufficient space can be provided between the outlet end of the second ejector tube 24 (with its air inlet facing the second direction) and the air inlet end of the first ejector tube 23 to accommodate the gas injection structure 43, thus avoiding interference between the air inlet end of the first ejector tube 23 and the air outlet end of the second ejector tube 24.

[0086] Preferably, in this embodiment, a nozzle 431 is installed at the gas injection port of the gas injection structure 43, and the nozzle 431 is coaxial with the air inlet end of the ejector tube.

[0087] In this embodiment, a circumferential positioning structure is provided between the burner head 4 and the main body. The circumferential positioning structure is used to improve the installation accuracy of the main body and ensure that the air inlet end of the ejector tube corresponds one-to-one with the gas injection port of the gas injection structure 43, so that the burner can work stably.

[0088] In some possible embodiments, the top of the gas injection structure 43 is magnetically connected to the bottom of the main body. Specifically, a magnetic block is embedded in the top of the gas injection structure 43, and the bottom of the outer ring mixing cavity 22, at least at the location corresponding to the gas injection structure 43, is made of a ferromagnetic material.

[0089] In some possible embodiments, the bottom of the main body is provided with a groove corresponding to the top of the gas injection structure 43, and the top of the gas injection structure 43 is embedded in the groove.

[0090] Specifically, the bottom of the outer ring mixing chamber 22 is provided with a groove, and the top of the gas injection structure 43 is inserted into the groove to achieve circumferential positioning of the main body. Preferably, three gas injection structures 43 are provided, and the tops of the three gas injection structures 43 correspond to the bottom of the outer ring mixing chamber 22. The three gas injection structures 43 are arranged unevenly in the circumferential direction of the combustion structure. Specifically, the interval between two adjacent gas injection structures 43 is different, thereby avoiding incorrect installation angle of the combustion structure on the burner head 4 during the installation of the combustion structure.

[0091] In some preferred embodiments, the burner head 4 is provided with an upwardly protruding mounting portion, and the main body is provided with a positioning portion that cooperates with the mounting portion. The circumferential positioning of the combustion structure is achieved by the positioning portion cooperating with the mounting portion.

[0092] In this embodiment, the positioning part and the mounting part are fitted together along the installation direction of the main body.

[0093] Specifically, the mounting part is columnar, and the positioning part is provided with a positioning groove corresponding to the mounting part. Along the installation direction of the main body, the positioning part is fitted onto the mounting part through the positioning groove.

[0094] In some specific embodiments, the main body is installed from top to bottom on the top of the gas injection structure 43. The mounting part is columnar. During the installation of the main body, the positioning part on the main body is fitted onto the mounting part, which can ensure the accuracy of the installation angle of the main body.

[0095] Preferably, the mounting portion includes an ignition needle 41 and / or a thermocouple 42, and the positioning portion extends radially along the main body and is fitted around the ignition needle 41 and / or the thermocouple 42 through a positioning groove; and / or, the mounting portion includes a columnar protrusion 26, and the positioning portion extends axially along the main body and is fitted around the top of the columnar protrusion 26 through a positioning groove.

[0096] In this embodiment, the ignition needle 41 is mounted on the burner head 4 via the ignition needle sleeve 44.

[0097] In some preferred embodiments, the mounting part and the positioning part are provided with multiple sets that cooperate with each other.

[0098] In some possible embodiments, the mounting portion includes an ignition needle 41 and / or a thermocouple 42, and the positioning portion includes a first positioning portion 251, which is a plate extending radially along the main body. The first positioning portion 251 is provided with a first positioning groove 252 that engages with the outer periphery of the ignition needle 41 and / or the thermocouple 42.

[0099] Preferred, such as Figures 1 to 9 As shown, the burner head 4 is provided with an ignition needle 41 and a thermocouple 42, which correspond to the intervals between the inner ring mixing chamber 21 and the outer ring mixing chamber 22.

[0100] The first positioning part 251 is plate-shaped and extends radially along the main body, extending at least partially between the inner ring mixing cavity 21 and the outer ring mixing cavity 22. The first positioning part 251 is provided with a first positioning groove 252, which is sleeved with the outer peripheral wall of the ignition needle 41 and / or the thermocouple 42.

[0101] Preferably, in this embodiment, the ignition needle 41 and the thermocouple 42 are close to each other, and a first positioning groove 252 is provided around the ignition needle 41 and the thermocouple 42. It includes a first recess corresponding to the ignition needle 41 and a second recess corresponding to the thermocouple 42. The first positioning groove 252 simultaneously cooperates with the ignition needle 41 and the thermocouple 42.

[0102] In some preferred embodiments, the outer peripheral wall of the inner flame cap 211 is provided with a protective cover 27 extending outward, or the inner peripheral wall of the outer flame cap 221 is provided with a protective cover 27 extending inward, and the protective cover 27 is disposed directly above the ignition needle 41 and spaced apart from the ignition needle 41.

[0103] In some other possible embodiments, the mounting part includes a columnar protrusion 26, and the positioning part includes a second positioning part 253. The second positioning part 253 extends downward from the bottom of the flame cap seat 2 and corresponds to the columnar protrusion 26. The second positioning part 253 is provided with a second positioning groove 254 with the slot facing downward for engaging with the columnar protrusion 26.

[0104] Specifically, such as Figure 7 and Figure 9 As shown, the columnar protrusion 26 corresponds to the bottom of the outer ring mixing cavity 22, the second positioning part 253 extends downward from the bottom of the outer ring mixing cavity 22, and the second positioning groove 254 is formed by recessing upward from the bottom of the second positioning part 253. The inner diameter of the second positioning groove 254 is greater than or equal to the outer diameter of the columnar protrusion 26.

[0105] During the process of installing the main body onto the top of the gas injection structure 43, the second positioning groove 254 is fitted onto the columnar protrusion 26 to ensure that the main body is installed on the gas injection structure 43 at a set angle.

[0106] Preferably, in this embodiment, the gas injection structure 43 and the burner seat 2 are in contact with each other.

[0107] Preferably, the top of the gas injection structure 43 is set as a plane, and the bottom of the burner seat 2 is set as a plane that fits against the top of the gas injection structure 43 at the corresponding position. The burner head 4 is provided with an ignition needle 41 and a thermocouple 42, and the burner seat 2 is provided with a first positioning part 251 that cooperates with the ignition needle 41 and the thermocouple 42; at the same time, the burner head 4 is provided with a columnar protrusion 26, and the burner seat 2 is provided with a second positioning part 253 that cooperates with the columnar protrusion 26.

[0108] In some preferred embodiments, the top surface of the gas injection structure 43 has a microscopic uneven structure, exhibiting a rough characteristic. This increases the coefficient of friction between the top of the gas injection structure 43 and the bottom of the burner seat 2, improves the support stability of the gas injection structure 43 on the burner seat 2, and prevents relative displacement between the burner seat 2 and the gas injection structure 43 during use.

[0109] In some preferred embodiments, the surface roughness of the top surface of the gas injection structure 43 is greater than or equal to the surface roughness of the bottom surface of the burner seat 2.

[0110] In some preferred embodiments, the top surface of the gas injection structure 43, away from the axis of the burner seat 2, covers the corner of the bottom edge of the burner seat 2.

[0111] Specifically, in this embodiment, the top surface of the gas injection structure 43 is in contact with at least a portion of the outer peripheral surface of the burner seat 2, which can further improve the stability of the gas injection structure 43 in supporting the burner seat 2 and prevent the burner seat 2 from shifting relative to the gas injection structure 43 during the use of the gas stove.

[0112] In some preferred embodiments, a chamfer is provided at the corner between the bottom surface and the outer peripheral surface of the burner cap 2, the top surface of the gas injection structure 43 abuts against the bottom surface of the burner cap 2, and the side of the top surface of the gas injection structure 43 away from the axis of the burner cap 2 covers the chamfer at the bottom of the burner cap 2.

[0113] Preferably, the chamfer at the corner between the bottom surface and the outer peripheral surface of the burner cap 2 is rounded, and the top surface of the gas injection structure 43 away from the axis of the burner cap 2 is set as an arc surface that fits the rounded corner.

[0114] like Figure 1 As shown in the present invention, a gas stove is also provided, which includes the burner, panel 1 and housing 10 described above.

[0115] The panel 1 is installed on the top of the housing 10, forming a cavity between the panel 1 and the housing 10, and the burner head 4 is installed inside the cavity. Specifically, the burner head 4 is installed on the bottom of the housing 10 and is fixedly connected to the housing 10 by connecting structures such as screws, bolts, and clips.

[0116] In this embodiment, the burner head 4 mainly consists of a gas injection structure 43, a gas distribution pipe, and a support. The gas distribution pipe is used to deliver gas from the gas valve to the gas injection structure 43. Both the gas distribution pipe and the gas injection structure 43 are fixed on the support, and the support is fixedly connected to the housing 10.

[0117] A mounting opening 12 is provided on the panel 1. The burner head 4 is installed below the panel 1. The gas injection structure 43 at the top of the burner head 4 extends upward through the mounting opening 12 on the panel 1, with the top of the gas injection structure 43 extending above the panel 1. The main body is installed on the gas injection structure 43 and is positioned opposite to the panel 1. This helps to reduce the size of the mounting opening 12 on the panel 1 and improves the aesthetics of the panel 1.

[0118] like Figure 6 As shown, in this embodiment, the panel 1 has two mounting ports 12. The gas injection structure 43 corresponding to the air inlet end of the first ejector tube 23 and the gas injection structure 43 corresponding to the air inlet end of the second ejector tube 24 with the air inlet end facing the first direction are arranged in the same mounting port 12, and the gas injection structure 43 corresponding to the air inlet end of the ejector tube with the air inlet end facing the second direction is arranged in another mounting port 12.

[0119] Preferably, in this embodiment, the thermocouple 42 and the ignition needle 41 are disposed in one of the mounting ports 12, and the columnar protrusion 26 is disposed in the other mounting port 12.

[0120] Preferably, the thermocouple 42 and the ignition needle 41 correspond to the mounting port 12 which has a gas injection structure 43 inside, and the columnar protrusion 26 corresponds to the mounting port 12 which has two gas injection structures 43 inside.

[0121] In this embodiment, a decorative cover 11 for covering the mounting port 12 is installed at the mounting port 12. The decorative cover 11 has a first opening 111 that matches the outer peripheral shape of the gas injection structure 43, and a second opening 112 that matches the outer peripheral shape of the mounting part.

[0122] Preferably, in this embodiment, the decorative cover 11 includes a plate portion that covers the mounting opening 12 and is fitted to the panel 1, and a cylindrical portion that extends vertically downward from the center of the plate portion and whose outer periphery is fitted to the inner wall of the mounting opening 12. The first opening 111 and / or the second opening 112 are located in the center of the plate portion.

[0123] In some possible embodiments, the columnar protrusion 26 is also used for positioning the decorative cover 11. Specifically, the lower end of the columnar protrusion 26 passes through the second opening 112 and is detachably connected to the burner head 4. The portion of the columnar protrusion 26 above the decorative cover 11 fits against the top of the decorative cover 11 on the outer periphery of the second opening 112, thereby enabling the decorative cover 11 to be fixed on the panel without the need for additional mounting structures such as screws.

[0124] Preferably, the lower end of the columnar protrusion 26 is threadedly connected to the furnace head.

[0125] Preferably, the upper end of the columnar protrusion 26 is in contact with the bottom of the flame cap seat 2, that is, the columnar protrusion can also support the flame cap seat, further improving the installation stability of the flame cap seat.

[0126] In this embodiment, the pot support 3 includes a support ring 31 arranged around the combustion structure. The support ring 31 is arranged on the outer periphery of the burner seat 2. The inner diameter of the support ring 31 is the same as the outer diameter of the burner seat 2, or the inner diameter of the support ring 31 is slightly larger than the outer diameter of the burner seat 2. The support ring 31 extends in a direction away from the axis of the burner seat 2.

[0127] Preferably, the outer diameter of the support ring 31 is greater than or equal to the maximum distance between the edge of the mounting opening 12 and the axis of the burner seat 2. That is, the projection of the outer edge of the support ring 31 on the panel 1 surrounds the mounting opening 12, so that the whole formed by the pot support 3 and the burner seat 2 can cover the mounting opening 12 on the panel 1, further improving the aesthetics of the gas stove.

[0128] Preferably, the outer diameter of the support ring 31 is greater than or equal to the maximum distance between the edge of the decorative cover 11 and the axis of the flame cap seat 2, so that the decorative cover 11 is not exposed, or only a small part of the decorative cover 11 is exposed from the gap between the inner ring mixing cavity 21 and the outer ring mixing cavity 22, which improves the user's visual experience.

[0129] Preferably, in this embodiment, the support ring 31 extends downward at an angle along the axis away from the fire cover seat 2, and / or the outer periphery of the support ring 31 extends vertically downward, which can further enhance the shielding effect of the support ring 31 on the decorative cover 11 and prevent the user from directly observing the decorative cover 11 from the side of the pot support 3.

[0130] With the above arrangement, the outer edge of the support ring 31 extends to the outer periphery of the decorative cover 11, and the outer edge of the support ring 31 is close to the panel 1. This prevents the user from directly observing the decorative cover 11 from the oblique front of the gas stove, improving the user's visual experience. Furthermore, under the support of the burner seat 2 on the pot support 3, the outer edge of the support ring 31 is spaced from the panel 1, allowing primary air drawn in through the injector during gas injection and some secondary air required during gas combustion to enter through the gap between the support ring 31 and the panel 1, ensuring combustion efficiency.

[0131] In some preferred embodiments, along the axis away from the burner cap 2, the support ring 31 has a first extension 312 extending upward at an angle away from the axis of the burner cap 2, and a second extension 313 extending vertically downward from the outer edge of the support ring 31. The first extension 312 facilitates the concentration of heat from the flame towards the bottom of the cookware, improving heat utilization. Simultaneously, the second extension 313 ensures effective concealment of the decorative cover 11, maintaining an aesthetically pleasing appearance.

[0132] In this embodiment, the pot support 3 and the fire cover seat 2 are coaxial. The axis of the fire cover seat 2 is the axis of the pot support 3, the axis of the support ring 31, and the axis of the combustion structure.

[0133] In this embodiment, a first support leg 32 is provided on the support ring 31. The first support leg 32 is located on the top of the support ring 31, and the pot support 3 supports the pot through the first support leg 32.

[0134] In this embodiment, the first support leg 32 is provided with a plurality of legs evenly arranged along the circumference of the support ring 31 to ensure the stability of the cookware. Preferably, there are four first support legs 32, which are evenly arranged along the circumference of the support ring 31.

[0135] In some specific embodiments, the first leg 32 is a plate extending radially along the support ring 31, and its top is provided with a support portion extending in a direction close to the axis of the support ring 31. The top of the support portion is provided as an inclined surface extending downward in a direction close to the axis of the support ring 31.

[0136] In some possible embodiments, the second leg is not provided below the support ring 31, or the second leg is provided below the support ring and is hidden by the support ring. Specifically, the second leg is not visible when the user is using it normally, so that the pot support rack forms a suspended effect and improves the user's visual experience.

[0137] In some other possible embodiments, the bottom of the support ring 31 is provided with a second foot 33, the bottom of the second foot 33 being close to the panel 1 of the gas stove.

[0138] Specifically, the second support leg 33 can assist the burner seat 2 in supporting the support ring 31. When the weight of the pot supported on the pot support 3 is large, the support ring 31 will deform, so that the panel 1 can provide support force to the support ring 31 through the second support leg 33, thereby improving the stability of the pot support 3 in supporting the pot.

[0139] Preferably, the bottom of the second support leg 33 is in contact with the panel 1 of the gas stove, and when the pot support 3 is not supporting a pot, the second support leg 33 does not apply pressure to the panel 1, or there is a gap between the bottom of the second support leg 33 and the panel 1 of the gas stove.

[0140] With the above-mentioned design, when no pot is placed on the pot support 3, or when the pot supported on the pot support 3 is light, the bottom of the second foot 33 will not exert pressure on the panel 1, or even come into contact with the panel 1. This avoids the situation where obvious indentations appear on the panel 1 due to prolonged pressure from the second foot 33 on the panel 1. At the same time, the design of the second foot 33 can further prevent the pot supported on the pot support 3 from tipping over, improving the stability of the gas stove during operation.

[0141] Preferably, in this embodiment, there is a gap between the bottom of the second support leg 33 and the panel 1 of the gas stove.

[0142] In this embodiment, the second leg 33 is a plate extending radially along the support ring 31.

[0143] Preferably, in this embodiment, the second leg 33 is provided with a plurality of legs corresponding one-to-one with the first leg 32.

[0144] Preferably, the second leg 33 and the first leg 32 are integral parts formed on the support ring 31.

[0145] Preferably, in this embodiment, a U-shaped component 34 is provided at the bottom of the second leg 33. The U-shaped component 34 is made of flexible material and is fixed to the bottom of the second leg 33, covering the bottom of the second leg 33. The bottom of the second leg 33 contacts the panel 1 through the U-shaped component 34, which can prevent the panel 1 from being scratched when the bottom of the second leg 33 contacts the panel 1.

[0146] In this embodiment, the U-shaped component 34 can be made of silicone material or heat-resistant rubber material.

[0147] Preferably, in this embodiment, the bottom of the second support leg 33 is lower than the bottom of the burner seat 2. Therefore, when the user removes the burner seat 2 and the pot support 3 and places them, the second support leg 33 can support the whole composed of the burner seat 2 and the pot support 3, so that the whole composed of the burner seat 2 and the pot support 3 can remain stable. This can prevent the bottom of the burner seat 2 from contacting the support surface used to place the burner seat 2 and the pot support 3, and prevent dirt from entering the ejector tube.

[0148] Example 2

[0149] like Figure 10 and Figure 11 As shown, this embodiment provides an assembly scheme between the pot support 3 and the fire cover seat 2 in the above embodiment one.

[0150] The pot support 3 is connected to the outer periphery of the fire cover 2 and is ring-shaped. The pot support 3 is sleeved on the outer periphery of the fire cover 2 and is coaxial with the fire cover 2.

[0151] The outer peripheral wall of the burner seat 2 is provided with a first connecting part 35, and the pot support 3 is provided with a second connecting part 36 corresponding to the first connecting part 35. The relative rotation between the burner seat 2 and the pot support 3 causes the first connecting part 35 to be inserted into the second connecting part 36, realizing the pre-installation positioning between the pot support 3 and the burner seat 2. This facilitates the subsequent further fixing of the pot support 3 and the burner seat 2, and improves the positioning effect between the pot support 3 and the burner seat 2, ensuring the fitting accuracy between the pot support 3 and the burner seat 2. In particular, it can ensure the coaxiality between the pot support 3 and the burner seat 2.

[0152] The second connecting portion 36 is provided with a connecting groove 360, which is located on the side of the second connecting portion 36. The orientation of the connecting groove 360 ​​corresponds to the circumferential direction of the pot support 3, or the connecting groove 360 ​​faces the axis of the pot support 3. The end of the connecting groove 360 ​​communicates with at least one side of the second connecting groove 360. The first connecting portion 35 protrudes radially outward from the outer peripheral wall of the burner cap 2. In the circumferential direction of the pot support 3, the first connecting portion 35 and the connecting groove 360 ​​at least partially overlap.

[0153] In some possible embodiments, the opening of the connecting groove 360 ​​faces the side into which the first connecting portion 35 is screwed, that is, the bottom of the connecting groove 360 ​​extends radially along the pot support 3.

[0154] In some possible embodiments, the opening of the connecting groove 360 ​​faces the axis of the pot support 3, that is, the bottom of the connecting groove 360 ​​extends along the circumference of the pot support 3, or the bottom of the connecting groove 360 ​​extends along the tangential direction of the circumference of the end of the first connecting portion 35.

[0155] In this embodiment, the two ends of the connecting groove 360 ​​can be connected to both sides of the second connecting part 36, that is, the connecting groove 360 ​​passes through the second connecting part 36; or the connecting groove 360 ​​can be connected only to the side of the second connecting part 36 that is screwed into the first connecting part 35. Preferably, the bottom of the connecting groove 360 ​​is L-shaped, including a first wall opposite to the axis of the pot support 3 and a second wall extending radially along the pot support 3. Preferably, the first wall extends circumferentially along the pot support 3.

[0156] In some possible embodiments, the second connecting portion 36 is configured as a column, the extending direction of the second connecting portion 36 is parallel to the axis of the flame cap seat 2, and the connecting groove 360 ​​is disposed on one side of the second connecting portion 36.

[0157] In some other possible embodiments, the second connecting part 36 is a bent plate, which is integrated with the pot support 3 and surrounds each other to form the connecting groove 360.

[0158] Preferably, in this embodiment, the second connecting part 36 includes a first connecting plate 361 and a second connecting plate 362. The first connecting plate 361 extends axially along the pot support 3, and the second connecting plate 362 is disposed at the end of the first connecting plate 361 and extends radially along the pot support 3. A connecting groove 360 ​​is formed between the second connecting plate 362 and the pot support 3.

[0159] In some possible embodiments, the second connecting plate 362 extends from the end of the first connecting plate 361 toward the axis of the pot support 3, and forms a connecting groove 360 ​​with the pot support 3 with the groove opening facing the axis of the pot support 3, wherein the first connecting plate 361 constitutes the bottom of the connecting groove 360.

[0160] In this embodiment, the distance between the axis of the first connecting plate 361 and the axis of the pot support 3 is greater than or equal to the distance between the end of the first connecting part 35 and the axis of the fire cover seat 2.

[0161] In some other possible embodiments, one end of the second connecting plate 362 protrudes outward relative to the first connecting plate 361 along the circumference of the pot support 3, and the second connecting plate 362 protrudes from one end of the first connecting plate 361 to form a connecting groove 360 ​​between the pot support 3 and the pot support 3.

[0162] In this embodiment, the first connecting plate 361 can be set at any position between the inner and outer peripheries of the pot support 3. It is only necessary to ensure that the minimum distance between the edge of the second connecting plate 362 and the axis of the pot support 3 is less than the distance between the end of the first connecting part 35 and the axis of the fire cover seat 2.

[0163] Preferably, in this embodiment, the first connecting plate 361 extends axially from the inner periphery of the pot support 3 along the pot support 3. Specifically, the first connecting plate 361 can be a straight plate tangent to the central opening of the pot support 3, or it can be an arc-shaped plate extending along the central opening of the pot support 3. The width of the second connecting plate 362 is greater than the width of the first connecting plate 361, and it bends and extends away from the axis of the pot support 3. This improves the compactness of the assembly between the pot support 3 and the burner seat 2.

[0164] Specifically, the "width of the second connecting plate 362" is the circumferential extension length of the second connecting plate 362 along the central opening.

[0165] Preferably, in this embodiment, the first connecting plate 361 is an arc-shaped plate extending along the central opening of the pot support 3, and the second connecting plate 362 extends radially along the pot support 3, with the side of the second connecting plate 362 near the axis of the pot support 3 aligned with the edge of the central opening of the pot support 3.

[0166] Preferably, one end of the second connecting plate 362 is flush with one end of the first connecting plate 361, and the other end of the second connecting plate 362 protrudes outward relative to the first connecting plate 361 along the circumference of the pot support 3.

[0167] Preferably, in this embodiment, the second connecting part 36 is provided with a plurality of parts arranged at intervals along the circumference of the pot support 3, and the outer peripheral wall of the pot support 3 is provided with a plurality of first connecting parts 35 corresponding one-to-one with the second connecting part 36. When the pot support 3 is sleeved on the outer periphery of the fire cover 2 and rotates relative to the fire cover 2, each first connecting part 35 is respectively engaged in the connecting groove 360 ​​of the corresponding second connecting part 36.

[0168] In this embodiment, the second connecting part 36 can be disposed at the top of the pot support 3 or at the bottom of the pot support 3.

[0169] Preferably, to improve the aesthetics of the gas stove, the second connecting part 36 is located at the bottom of the pot support 3. In this embodiment, the pot support 3 is fitted onto the outer periphery of the burner cap 2 from the top, so that the second connecting part 36 and the first connecting part 35 on the burner cap 2 are at the same height. Then, the pot support 3 is rotated so that the connecting groove 360 ​​on the second connecting part 36 is fitted onto the first connecting part 35.

[0170] like Figure 10 As shown, in this embodiment, the pot support 3 includes a support ring 31 arranged around the burner seat 2 and a support foot arranged on the support ring 31. The support ring 31 is arranged on the outer periphery of the burner seat 2. The inner diameter of the support ring 31 is the same as the outer diameter of the burner seat 2, or the inner diameter of the support ring 31 is slightly larger than the outer diameter of the burner seat 2. The second connecting part 36 is arranged on the support ring 31 and is offset from the support foot in the circumferential and / or radial directions.

[0171] In this embodiment, the support leg consists of a first support leg 32 disposed above the support ring 31 and a second support leg 33 disposed below the support ring 31.

[0172] Preferably, in this embodiment, the support leg is disposed on the support ring 31 and is disposed near the outer periphery of the support ring 31, and the second connecting part 36 is disposed near the inner periphery of the support ring 31 and corresponds to the support leg in the radial direction.

[0173] In some specific embodiments, the support legs are provided with four arranged at intervals along the circumference of the pot support frame 3, and the second connecting part 36 is provided with four corresponding to the support legs.

[0174] Specifically, in this embodiment, the support ring 31 is a plate-shaped part extending away from the axis of the pot support 3. The inner circumference of the support ring 31 has a downwardly bent section 311. A first connecting plate 361 extends downward from the lower end of the bent section 311, and a connecting groove 360 ​​is formed between the second connecting plate 362 and the lower end of the bent section 311. By forming a connecting groove 360 ​​between the second connecting plate 362 and the lower end of the bent section 311, the lower end of the bent section 311 can be used as a guide, allowing the first connecting part 35 to be smoothly inserted into the connecting groove 360, improving the smoothness of installation between the burner cap 2 and the pot support 3. Simultaneously, the bent section 311 also better conceals the first connecting part 35 and the second connecting part 36, preventing direct observation by the user during use and improving the appearance of the gas stove.

[0175] Preferably, in this embodiment, the distance between the second connecting plate 362 and the bent section 311 is equal to the thickness of the first connecting part 35. When the first connecting part 35 is inserted into the connecting groove 360, the top of the first connecting part 35 is in contact with the lower end of the bent section 311, and the bottom of the first connecting part 35 is in contact with the second connecting plate 362. This can further improve the tightness of the fit between the first connecting part 35 and the second connecting part 36, and improve the assembly stability between the pot support 3 and the fire cover seat 2.

[0176] In this embodiment, the first connecting part 35 and the second connecting part 36 can be fixed together by any means such as pins, latches, screws, etc.

[0177] In some possible embodiments, after the first connecting part 35 is inserted into the mounting groove, the end of the second connecting plate 362 is bent upward to close the opening of the mounting groove and limit the first connecting part 35 to the mounting groove.

[0178] In some other possible embodiments, the first connecting portion 35 and the second connecting portion 36 are fixed together by a connector. Specifically, the connector passes through the overlap between the first connecting portion 35 and the second connecting portion 36, limiting the first connecting portion 35 within the mounting groove.

[0179] Preferably, in this embodiment, the first connecting part 35 is an ear plate that protrudes radially outward from the outer peripheral wall of the flame cover seat 2, and a screw hole 351 is provided in the middle of the ear plate. The connecting member is a positioning screw that passes through the second connecting part 36 and is connected to the screw hole 351 from the overlapping part between the first connecting part 35 and the second connecting part 36.

[0180] Specifically, in this embodiment, when the first connecting part 35 is inserted into the connecting groove 360 ​​on the second connecting part 36, the through hole 3621 on the second connecting plate 362 is aligned with the screw hole 351 on the ear plate. The positioning screw passes through the through hole 3621 on the second connecting plate 362 from bottom to top and is connected to the screw hole 351 on the ear plate. The head of the positioning screw presses the second connecting plate 362 against the bottom of the ear plate.

[0181] Preferably, in this embodiment, the positioning screw is a countersunk screw, and the second connecting part 36 is provided with a countersunk hole that mates with the head of the countersunk screw.

[0182] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A burner, characterized by The burner comprises: a burner head (4) provided with gas injection structures (43) on the top thereof; a main body part comprising a combustion structure and a pot support frame (3) connected to each other, the combustion structure being provided with injection pipes at the bottom thereof; the main body part is detachably mounted on the gas injection structures (43), and the gas injection ports of the gas injection structures (43) correspond to the air inlet ends of the injection pipes.

2. The burner of claim 1, wherein The gas injection structures (43) are arranged below the combustion structure and support the main body part from the bottom of the combustion structure; the combustion structure is mounted on the top of the gas injection structures (43), and the gas injection ports are arranged on the side of the gas injection structures (43).

3. The burner of claim 2, wherein The bottom of the combustion structure is provided with a plurality of injection pipes, and the gas injection structures (43) are provided with a plurality of injection pipes corresponding to the injection pipes at the bottom of the combustion structure; a plurality of gas injection structures (43) are arranged close to the bottom edge of the combustion structure and are arranged in a circumferential direction.

4. The burner according to claim 3, wherein the combustion structure comprises an inner ring mixing chamber (21) and an outer ring mixing chamber (22), and the injection pipes comprise first injection pipes (23) communicating with the inner ring mixing chamber (21) and second injection pipes (24) communicating with the outer ring mixing chamber (22); the air inlet ends of the first injection pipes (23) and the second injection pipes (24) are arranged close to the outer periphery of the outer ring mixing chamber (22), and the gas injection structures (43) corresponding to the air inlet ends of the first injection pipes (23) and the second injection pipes (24) are arranged directly below the outer ring mixing chamber (22).

5. The burner of claim 4, wherein The second injection pipes (24) are provided with two, arranged on opposite sides of the outer ring mixing chamber (22); the first injection pipes (23) and the second injection pipes (24) extend along the tangential directions of the inner ring mixing chamber (21) and the outer ring mixing chamber (22) respectively; the air inlet ends of the two second injection pipes (24) are oriented in the same direction, and the air inlet end of the first injection pipe (23) is oriented in the opposite direction of the air inlet ends of the second injection pipes (24); or the air inlet ends of the two second injection pipes (24) are oriented in opposite directions.

6. Burner according to claim 4 or 5, characterized in that The first injection pipes (23) and the second injection pipes (24) are parallel to each other.

7. The burner according to any one of claims 1 to 5, characterized in that A circumferential positioning structure is arranged between the burner head (4) and the main body part.

8. The burner according to claim 7, wherein an installation part protruding upward is arranged on the burner head (4), and a positioning part cooperating with the installation part is arranged on the main body part; a positioning groove corresponding to the installation part is arranged on the positioning part, and the positioning part is sleeved on the installation part through the positioning groove in the installation direction of the main body part; the installation part comprises an ignition needle (41) and / or a thermocouple (42), and the positioning part extends in the radial direction of the main body part and is sleeved on the circumferential side of the ignition needle (41) and / or the thermocouple (42) through the positioning groove; and / or the installation part comprises a columnar protrusion (26), and the positioning part extends in the axial direction of the main body part and is sleeved on the top of the columnar protrusion (26) through the positioning groove.

9. A gas hob, characterized in that The burner comprises any one of the burners according to claims 1 to 8.

10. The gas hob according to claim 9, characterized in that The pot support frame (3) comprises a support ring (31) arranged around the combustion structure, and the top of the support ring (31) is provided with a first supporting leg (32) for supporting a pot; ​ Alternatively, the bottom of the support ring (31) is provided with a second leg (33), and a gap is provided between the bottom of the second leg (33) and the panel (1) of the gas stove.

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