Gas burner and gas hob

Abstract

The utility model discloses a kind of gas burner and gas cooking utensils, gas burner includes combustor main body and the fire cover assembly being located at its upside, fire cover assembly includes center fire cover and outer ring fire cover, center fire cover is located in the ring inside of outer ring fire cover and is annularly provided with a plurality of first fire hole, the upper side of part first fire hole of center fire cover is provided with the outer protruding portion of outwardly extending protrusion, combustor main body is provided with igniter needle, thermocouple needle, first mounting hole and second mounting hole, first, second mounting hole are all through and the side of all communication has locking hole, igniter needle is arranged first mounting hole and can be moved up and down, thermocouple needle is arranged second mounting hole and can be moved up and down, outer protruding portion is located the directly above of igniter needle and thermocouple needle, locking hole is provided with the locking piece for locking igniter needle and thermocouple needle.The utility model can be moved up and down by igniter needle and thermocouple needle, adjust the distance of its to outer protruding portion, and then adjust ignition distance and flame response distance, improve adaptability.

Description

Technical Field

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

[0002] Existing gas burners typically feature a central burner cap and an outer ring burner cap. The central burner cap is located in the center of the ring formed by the outer ring burner cap. To enable ignition and flame status monitoring, an ignition needle and a thermocouple needle are installed between the central burner cap and the outer ring burner cap, respectively used to ignite the gas and sense the flame status. In existing gas burner designs, the ignition needle and thermocouple needle are mostly fixedly connected, with their installation positions usually at preset fixed points. This design keeps the distance between the tip of the ignition needle and the gas output from the central burner cap constant, and the position of the thermocouple needle sensing the flame is also relatively fixed. However, this structure has certain limitations in actual production and application: on the one hand, when dimensional deviations or assembly errors occur during manufacturing, the ignition distance or flame sensing distance can easily deviate from the optimal range, thus affecting the ignition success rate or the reliability of flame detection, resulting in a decrease in product qualification rate; on the other hand, because the relevant distance parameters cannot be flexibly adjusted according to actual usage conditions or personalized needs, the adaptability of the product is reduced. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a gas burner head that can adjust the distance to the outward protrusion by moving the ignition needle and thermocouple needle up and down, thereby adjusting the ignition distance and flame sensing distance, improving adaptability, and helping to ensure the success rate of ignition and the reliability of flame detection.

[0004] This utility model also proposes a gas stove with the gas burner head.

[0005] According to a first aspect embodiment of the present invention, a gas burner head includes a burner body and a burner cap assembly. The burner cap assembly is disposed on the upper side of the burner body and includes a central burner cap and an outer ring burner cap. The central burner cap is located inside the ring formed by the outer ring burner cap. A plurality of first flame holes are provided around the periphery of the central burner cap. An outwardly protruding portion extending outward relative to the side of the central burner cap is provided above some of the first flame holes. The burner body is provided with an ignition needle and a thermocouple needle. The burner body is also provided with a first mounting hole and a second mounting hole. Both the first mounting hole and the second mounting hole are vertically connected. Locking holes are provided on the sides of both the first mounting hole and the second mounting hole. The ignition needle passes through the first mounting hole and can move up and down relative to the first mounting hole. The thermocouple needle passes through the second mounting hole and can move up and down relative to the second mounting hole. The protruding part is located above the ignition needle and the thermocouple needle, and its longitudinal projection covers the ignition needle and the thermocouple needle. A locking member is provided at the locking hole. The locking member can restrict or release the vertical movement of the ignition needle and the thermocouple needle.

[0006] According to the gas burner head described in this utility model embodiment, it has at least the following beneficial effects: In use, the gas at the center burner cap is output through the first burner hole. Part of the gas output from the first burner hole is blocked by the outer protrusion and flows outward along the lower side of the outer protrusion. Since the ignition needle and the thermocouple needle are both located below the outer protrusion and the longitudinal projection of the outer protrusion covers the ignition needle and the thermocouple needle, the distance between the tip of the ignition needle and the gas below the outer protrusion is the ignition distance. After the gas is ignited, the distance between the tip of the thermocouple needle and the flame below the outer protrusion is the flame sensing distance. Thus, during assembly, the distance between the ignition needle and the thermocouple needle and the outer protrusion can be adjusted by moving them up and down, thereby adjusting the ignition distance and the flame sensing distance, improving adaptability, and helping to ensure the success rate of ignition and the reliability of flame detection.

[0007] According to some embodiments of this utility model, the locking member is a bolt and is threadedly engaged with the locking hole. The locking member can be screwed relative to the locking hole thread to abut against the ignition needle or the thermocouple needle.

[0008] According to some embodiments of the present invention, the outlet end of the first flame hole is inclined upward relative to the inlet end of the first flame hole, and part of the outlet end of the first flame hole faces the outward protrusion.

[0009] According to some embodiments of the present invention, the upper side of the central flame cap is provided with an annular protrusion, which surrounds the upper edge of the central flame cap and has a notch.

[0010] According to some embodiments of this utility model, the burner body includes an upper body seat and a lower body seat. The upper body seat is provided with a central gas chamber and an outer ring gas chamber. The lower body seat is provided with a central air passage and an outer ring air passage. The upper body seat is placed on the upper side of the lower body seat. The central air passage is connected to the central gas chamber. The outer ring air passage is connected to the outer ring gas chamber. The central flame cap is placed on the upper side of the central gas chamber and the first flame hole is connected to the central gas chamber. The outer ring flame cap is placed on the upper side of the outer ring gas chamber and is provided with a second flame hole connected to the outer ring gas chamber.

[0011] According to some embodiments of the present invention, the upper body seat is provided with a downwardly extending positioning sleeve on the lower side of the outer annular air cavity, and the lower body seat is provided with an upwardly extending support column. The support column is inserted into the positioning sleeve and abuts against the upper body seat to support the upper body seat.

[0012] According to some embodiments of the present invention, a flame stabilizing groove is provided around the periphery of the central flame cap, and the flame stabilizing groove is located below the gas outlet end of the first flame hole and communicates with the central gas cavity.

[0013] According to some embodiments of the present invention, the second flame hole is elongated and has multiple holes. The multiple second flame holes are distributed at intervals along the inner side of the outer ring flame cap and spirally arranged around the axis of the outer ring flame cap, so that the gas output between the multiple second flame holes can form a vortex airflow. Each second flame hole is provided with a flame stabilizing hole on its side.

[0014] According to some embodiments of the present invention, the outer annular air cavity has an annular structure, and a flow divider is provided above the air inlet of the outer annular air cavity.

[0015] The gas stove according to the second aspect of the present invention includes a gas burner head according to the first aspect of the present invention.

[0016] According to the gas stove described in the embodiments of this utility model, it has at least the following beneficial effects: by adopting the above-mentioned gas burner head, it is possible to adjust the distance to the outward protrusion by moving the ignition needle and the thermocouple needle up and down, thereby adjusting the ignition distance or flame sensing distance, improving adaptability, and helping to ensure the success rate of ignition or the reliability of flame detection.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the gas burner head according to an embodiment of the present invention; Figure 2 for Figure 1 A structural schematic diagram of a gas-fired burner from another perspective; Figure 3 for Figure 1 A schematic diagram of the exploded structure of a gas-fired burner head; Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of a gas-fired burner head.

[0019] Figure label: First mounting hole 101, second mounting hole 102, locking hole 103, central air chamber 104, outer ring air chamber 105, central air passage 106, outer ring air passage 107, upper body seat 110, positioning sleeve 111, flow divider 112, lower body seat 120, ignition needle 121, thermocouple needle 122, locking component 123, support column 124; First flame hole 201, second flame hole 202, notch 203, flame stabilizer groove 204, flame stabilizer hole 205, center flame cap 210, outer protrusion 211, annular protrusion 212, outer annular flame cap 220; First air intake pipe 310, second air intake pipe 320. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does 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 utility model.

[0022] In the description of this utility model, if words such as several, greater than, less than, exceeding, above, below, or within appear, several means one or more, multiple means two or more, greater than, less than, exceeding, etc. are understood to exclude the number itself, and above, below, or within are understood to include the number itself.

[0023] If the terms "first" and "second" are used only to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A gas burner head includes a burner body and a burner cap assembly. The burner cap assembly is disposed on the upper side of the burner body and includes a central burner cap 210 and an outer ring burner cap 220. The central burner cap 210 is located inside the ring formed by the outer ring burner cap 220. A plurality of first flame holes 201 are provided around the periphery of the central burner cap 210. An outwardly protruding portion 211 extending outward relative to the side of the central burner cap 210 is provided above some of the first flame holes 201. The burner body is provided with an ignition needle 121 and a thermocouple needle 122. The burner body is provided with a first mounting hole 101 and a second mounting hole 102. The mounting holes 102 are all vertically connected. Locking holes 103 are provided on the sides of the first mounting hole 101 and the second mounting hole 102. The ignition needle 121 passes through the first mounting hole 101 and can move up and down relative to the first mounting hole 101. The thermocouple needle 122 passes through the second mounting hole 102 and can move up and down relative to the second mounting hole 102. The protrusion 211 is located above the ignition needle 121 and the thermocouple needle 122 and its longitudinal projection covers the ignition needle 121 and the thermocouple needle 122. A locking member 123 is provided at the locking hole 103. The locking member 123 can restrict or release the vertical movement of the ignition needle 121 and the thermocouple needle 122.

[0026] Understandably, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the first mounting hole 101 and the second mounting hole 102 are both vertically connected and located directly below the protrusion 211. During assembly, the ignition needle 121 is inserted through the first mounting hole 101 and its position relative to the first mounting hole 101 is adjusted by moving it up and down relative to the protrusion 211. The thermocouple needle 122 is inserted through the second mounting hole 102 and its position relative to the second mounting hole 102 is adjusted by moving it up and down relative to the protrusion 211. Then, the locking members 123 at the two locking holes 103 are used to restrict the up and down movement of the ignition needle 121 and the thermocouple needle 122 respectively, so as to realize the installation and fixation of the ignition needle 121 and the thermocouple needle 122. In use, the gas at the center burner cap 210 is output through the first burner hole 201. Part of the gas output from the first burner hole 201 is blocked by the outer protrusion 211 and flows outward along the lower side of the outer protrusion 211. Since the ignition needle 121 and the thermocouple needle 122 are both located below the outer protrusion 211 and the longitudinal projection of the outer protrusion 211 covers the ignition needle 121 and the thermocouple needle 122, the distance between the tip of the ignition needle 121 and the gas below the outer protrusion 211 is the ignition distance. After the gas is ignited, the distance between the tip of the thermocouple needle 122 and the flame below the outer protrusion 211 is the flame sensing distance. Thus, during assembly, the distance between the ignition needle 121 and the thermocouple needle 122 and the outer protrusion 211 can be adjusted by moving them up and down, thereby adjusting the ignition distance and the flame sensing distance, improving adaptability, and helping to ensure the success rate of ignition and the reliability of flame detection.

[0027] In practical applications, the specific structure of the burner body and the flame cap assembly can be set according to the actual needs of use. It will not be described in detail here, but will be explained in detail below.

[0028] In some embodiments, the locking member 123 is a bolt and threadedly engages with the locking hole 103. The locking member 123 can be threadedly screwed relative to the locking hole 103 to abut against the ignition needle 121 or against the thermocouple needle 122.

[0029] Understandably, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the locking element 123 is a bolt, and the corresponding locking hole 103 is a threaded hole. The locking element 123 is threadedly engaged with the locking hole 103. During assembly, after adjusting the positions of the ignition needle 121 and the thermocouple needle 122 by moving them up and down, the locking element 123 can be tightened to make the corresponding locking element 123 threadedly engage with the locking hole 103 to abut against the ignition needle 121 or the thermocouple needle 122, thereby restricting the up and down movement of the ignition needle 121 and the thermocouple needle 122 and achieving their installation and fixation. When it is necessary to adjust the position of the ignition needle 121 and the thermocouple needle 122, the locking element 123 is loosened to release it from abutting against the ignition needle 121 and the thermocouple needle 122, and then the ignition needle 121 and the thermocouple needle 122 can be moved up and down for adjustment. Its structure is simple and easy to use. In practical applications, the locking element 123 can also be a pin. A sleeve is fitted over the outer surface of the ignition needle 121 and the thermocouple needle 122, and multiple holes are provided on the sleeve in a vertical direction. Locking is achieved by inserting the pin into the corresponding hole. The specific settings can be made according to the actual needs of use.

[0030] In some embodiments, the outlet end of the first flame hole 201 is inclined upward relative to the inlet end of the first flame hole 201, and part of the outlet end of the first flame hole 201 faces the outward protrusion 211.

[0031] Understandably, such as Figure 4 As shown, the outlet end of the first flame hole 201 is inclined upward relative to the inlet end of the first flame hole 201, so that the outlet end of the first flame hole 201 corresponding to the protrusion 211 faces the protrusion 211, allowing the output gas to be directly sprayed onto the lower side of the protrusion 211. This ensures that gas and a combustion flame are present on the lower side of the protrusion 211 during use, facilitating operation. In practical applications, the specific inclination of the first flame hole 201 can be set according to actual usage requirements.

[0032] In some embodiments, the upper side of the center flame cap 210 is provided with an annular protrusion 212, the annular protrusion 212 is disposed around the upper edge of the center flame cap 210 and is provided with a notch 203. It is understood that, as Figure 1 and Figure 3As shown, a ring-shaped protrusion 212 is provided on the upper side of the center flame cap 210. The ring-shaped protrusion 212 surrounds the upper edge of the center flame cap 210 and has a notch 203 on the right side. An outer protrusion 211 is located on the left side of the center flame cap 210, and the notch 203 is located away from the outer protrusion 211. In use, some liquids such as water and oil may drip onto the center flame cap 210. The ring-shaped protrusion 212 can prevent the liquid that accidentally drips from the upper side of the center flame cap 210 from flowing down from any edge position of the center flame cap 210, and limit its flow to the notch 203, reducing the possibility of affecting the ignition needle 121 and the thermocouple needle 122, improving the reliability of use, and facilitating use. In actual applications, the ring-shaped protrusion 212 can be set according to the actual use needs.

[0033] In some embodiments, the burner body includes an upper body seat 110 and a lower body seat 120. The upper body seat 110 is provided with a central gas chamber 104 and an outer ring gas chamber 105. The lower body seat 120 is provided with a central air passage 106 and an outer ring air passage 107. The upper body seat 110 is placed on the upper side of the lower body seat 120. The central air passage 106 is connected to the central gas chamber 104, and the outer ring air passage 107 is connected to the outer ring gas chamber 105. The central flame cap 210 is placed on the upper side of the central gas chamber 104 and the first flame hole 201 is connected to the central gas chamber 104. The outer ring flame cap 220 is placed on the upper side of the outer ring gas chamber 105 and is provided with a second flame hole 202 connected to the outer ring gas chamber 105.

[0034] Understandably, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the burner body has a split structure, with an upper body seat 110 on the upper side and a lower body seat 120 on the lower side. The gas burner head also includes an air inlet pipe assembly connected to the burner body. The air inlet pipe assembly includes a first air inlet pipe 310 and a second air inlet pipe 320. The first air inlet pipe 310 is connected to the central air passage 106 of the lower body seat 120, and the second air inlet pipe 320 is connected to the outer ring air passage 107 of the lower body seat 120. The upper body seat 110 is placed on top of the lower body seat 120. The central vent 106 is connected to the central gas chamber 104, and the outer ring vent 107 is connected to the outer ring gas chamber 105. The central flame cap 210 is positioned on the upper side of the central gas chamber 104, and the first flame hole 201 is connected to the central gas chamber 104 to output the gas from the central gas chamber 104. The outer ring flame cap 220 is positioned on the upper side of the outer ring gas chamber 105, and the second flame hole 202 is connected to the outer ring gas chamber 105 to output the gas from the outer ring gas chamber 105. Its structure is simple and easy to manufacture and use. In practical applications, the specific structures of the upper main body 110 and the lower main body 120 can be set according to actual usage requirements.

[0035] In some embodiments, the upper body 110 is provided with a downwardly extending positioning sleeve 111 on the lower side of the outer annular air cavity 105, and the lower body 120 is provided with an upwardly extending support column 124. The support column 124 is inserted into the positioning sleeve 111 and abuts against the upper body 110 to support the upper body 110.

[0036] Understandably, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the lower side of the main body upper seat 110 is provided with two positioning sleeves 111, and the main body lower seat 120 is provided with two corresponding support columns 124. The support columns 124 are inserted into the positioning sleeves 111 and abut against the main body upper seat 110 to support the main body upper seat 110, improve its placement stability, and facilitate use. In actual applications, the positioning sleeves 111 and support columns 124 can be set according to actual usage needs.

[0037] In some embodiments, a flame stabilizing groove 204 is provided around the periphery of the central flame cap 210. The flame stabilizing groove 204 is located below the gas outlet end of the first flame hole 201 and communicates with the central gas cavity 104. It is understood that, as Figure 1 , Figure 3 and Figure 4 As shown, the central burner cap 210 has a ring of flame-stabilizing grooves 204 on the lower side of the gas outlet end of the first burner hole 201. The flame-stabilizing grooves 204 are connected to the central gas chamber 104 through a through-hole structure. By setting the flame-stabilizing grooves 204, it is beneficial to assist the combustion of the gas output from the first burner hole 201, thereby achieving a flame-stabilizing effect and facilitating use. In actual applications, the flame-stabilizing grooves 204 can be set according to actual usage needs.

[0038] In some embodiments, the second flame holes 202 are elongated and multiple are provided. The multiple second flame holes 202 are distributed at intervals along the inner side of the outer ring flame cap 220 and spirally arranged around the axis of the outer ring flame cap 220 so that the gas output between the multiple second flame holes 202 can form a vortex airflow. Each second flame hole 202 is provided with a flame stabilizing hole 205 on its side.

[0039] Understandably, such as Figure 1 , Figure 3 and Figure 4As shown, the outer ring burner cap 220 has a circular structure. Multiple elongated second burner holes 202 are provided, spaced apart circumferentially around the outer ring burner cap 220 and spirally arranged around its axis. The upper part of each second burner hole 202 extends to the upper side of the outer ring burner cap 220. A flame stabilizing hole 205 is correspondingly provided on the side of each second burner hole 202, located on the upper side of the outer ring burner cap 220. During use, some of the combustion gas is output from the second burner holes 202, forming a vortex airflow. After ignition, the flame forms a spiral shape, and some combustion gas is output from the flame stabilizing holes 205. By adding flame stabilizing holes 205 on the side of the second burner holes 202, the gas output from the upper side of the outer ring burner cap 220 can be increased, and the flame height of the outer ring burner cap 220 can be stabilized, improving combustion conditions and facilitating use. In practical applications, the second flame hole 202 and the flame stabilizer hole 205 can be set according to actual usage needs.

[0040] In some embodiments, the outer annular air chamber 105 has an annular structure, and a flow divider 112 is provided above the air inlet of the outer annular air chamber 105. It is understood that, as Figure 3 and Figure 4 As shown, by setting a flow divider 112 above the air inlet of the outer annular gas chamber 105, when the gas enters the outer annular gas chamber 105, the flow divider 112 can be used to divert some of the gas, guiding it to flow to both sides of the air inlet of the outer annular gas chamber 105. This ensures that the gas fills the outer annular gas chamber 105 completely, facilitating uniform combustion output on the outer annular burner cap 220, resulting in even flame distribution and ease of use. In practical applications, the specific structure of the flow divider 112 can be set according to actual usage requirements.

[0041] A gas stove according to a second aspect of the present invention includes a gas burner head according to the first aspect of the present invention described above.

[0042] According to the embodiments of the present invention, the gas stove, by adopting the above-mentioned gas burner head, can adjust the distance to the outward protrusion 211 by moving the ignition needle 121 and the thermocouple needle 122 up and down, thereby adjusting the ignition distance and the flame sensing distance, improving adaptability, and helping to ensure the success rate of ignition and the reliability of flame detection.

[0043] Since the other components of the gas stove in this embodiment are known to those skilled in the art, they will not be described in detail here.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A gas-fired burner head, characterized in that, The device includes a burner body and a flame cap assembly. The flame cap assembly is disposed on the upper side of the burner body and includes a central flame cap and an outer ring flame cap. The central flame cap is located inside the ring formed by the outer ring flame cap. The central flame cap has a plurality of first flame holes around its periphery. The central flame cap has an outwardly protruding portion extending outward relative to the side of the central flame cap at a position above some of the first flame holes. The burner body is provided with an ignition needle and a thermocouple needle. The burner body also has a first mounting hole and a second mounting hole. The first mounting hole and the second mounting hole... All mounting holes are vertically connected. Locking holes are provided on the sides of both the first and second mounting holes. The ignition needle passes through the first mounting hole and can move vertically relative to the first mounting hole. The thermocouple needle passes through the second mounting hole and can move vertically relative to the second mounting hole. The protruding part is located above the ignition needle and the thermocouple needle, and its longitudinal projection covers the ignition needle and the thermocouple needle. A locking member is provided at the locking hole. The locking member can restrict or release the vertical movement of the ignition needle and the thermocouple needle.

2. The gas burner head according to claim 1, characterized in that, The locking element is a bolt that is threaded into the locking hole. The locking element can be screwed into the locking hole thread to abut against the ignition needle or the thermocouple needle.

3. The gas burner head according to claim 1, characterized in that, The outlet end of the first flame hole is inclined upward relative to the inlet end of the first flame hole, and part of the outlet end of the first flame hole faces the outward protrusion.

4. The gas burner head according to claim 1, characterized in that, The upper side of the central flame cap is provided with an annular protrusion, which surrounds the upper edge of the central flame cap and has a notch.

5. The gas burner head according to claim 1, characterized in that, The burner body includes an upper body and a lower body. The upper body has a central gas chamber and an outer ring gas chamber. The lower body has a central air passage and an outer ring air passage. The upper body is placed on the upper side of the lower body. The central air passage is connected to the central gas chamber, and the outer ring air passage is connected to the outer ring gas chamber. The central flame cap is placed on the upper side of the central gas chamber and the first flame hole is connected to the central gas chamber. The outer ring flame cap is placed on the upper side of the outer ring gas chamber and has a second flame hole connected to the outer ring gas chamber.

6. The gas burner head according to claim 5, characterized in that, The upper body is provided with a downwardly extending positioning sleeve on the lower side of the outer annular air cavity, and the lower body is provided with an upwardly extending support column. The support column is inserted into the positioning sleeve and abuts against the upper body to support the upper body.

7. The gas burner head according to claim 5, characterized in that, The central flame cap is provided with a flame stabilizing groove around its periphery. The flame stabilizing groove is located below the gas outlet end of the first flame hole and communicates with the central gas cavity.

8. The gas burner head according to claim 5, characterized in that, The second flame hole is elongated and has multiple holes. The multiple second flame holes are distributed at intervals along the inner side of the outer ring flame cap and spirally arranged around the axis of the outer ring flame cap, so that the gas output between the multiple second flame holes can form a vortex airflow. Each second flame hole has a corresponding flame stabilizing hole on its side.

9. The gas burner head according to claim 5, characterized in that, The outer annular air chamber has an annular structure, and a flow divider is provided above the air inlet of the outer annular air chamber.

10. A gas stove, characterized in that, Including the gas burner head according to any one of claims 1 to 9.

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