Burner with wall collision type furnace end and kitchen range
By designing a wall-to-wall furnace head burner, the gas spreads along the guide wall after injection to form a gas film, the problem of low combustion efficiency caused by the gas output structure in the prior art is solved, and more efficient gas combustion is achieved.
Patent Information
- Application Number
- CN202421962699.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-13
AI Technical Summary
The gas output structure of the existing furnace head burner results in a small contact area between the gas and the air and low combustion efficiency.
A wall-to-wall furnace head burner is designed to output gas through a gas nozzle and spread along the guide wall to form an air film to increase the contact area between the gas and the air.
By increasing the contact area between gas and air, the combustion efficiency of gas is improved and energy saving.
Smart Images

Figure CN223020278U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas stoves, and particularly relates to a wall-hitting type burner and a cooker. Background Art
[0002] In the existing burner, gas is usually transported to the gas cavity of the burner body, and then outputs and burns through the fire holes on the burner cap on the upper side of the burner body. For the burner with such a structure, the gas usually outputs from the fire holes in a columnar or strand shape. After output, usually only the outer layer of the gas can contact with the air, and the contact area between the output gas and the air is small. And the contact area between the gas and the air affects the combustion efficiency of the gas. Therefore, the combustion efficiency of such a gas output mode is not high, and the gas output structure of the existing burner needs to be improved. Summary of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a wall-hitting type burner, which can increase the contact area between the output gas and the air, and is beneficial to improving the combustion efficiency of the gas.
[0004] The utility model also provides a cooker with the wall-hitting type burner.
[0005] According to the wall-hitting type burner described in the first aspect embodiment of the utility model, it includes a burner body, a gas guiding member and an ignition assembly. The burner body is provided with a first gas channel for gas transportation, and a first gas nozzle is arranged on the burner body. The gas in the first gas channel can output through the first gas nozzle. The gas guiding member is arranged on the burner body and has a first guiding wall. The output end of the first gas nozzle faces upward and corresponds to the first guiding wall, so that the gas output by the first gas nozzle can be sprayed onto the first guiding wall and spread along the first guiding wall to form a gas film. The ignition assembly is connected to the burner body and is used for igniting the gas on the first guiding wall.
[0006] According to the wall-hitting type burner described in the embodiment of the utility model, it has at least the following beneficial effects: during use, gas is input into the first gas channel, and the gas in the first gas channel is sprayed and output through the first gas nozzle and sprayed onto the first guiding wall. After the sprayed gas flow collides with the first guiding wall, it spreads along the first guiding wall to form a gas film, and then is ignited by the ignition assembly to realize combustion heating. By setting a wall-hitting type gas output structure, the output gas spreads to form a gas film after hitting the wall, thereby increasing the contact area between the output gas and the air, being beneficial to improving the combustion efficiency of the gas and saving energy.
[0007] According to some embodiments of the present utility model, the air guiding member is annular, the first guiding wall is arranged on the outer side of the ring of the air guiding member, a second guiding wall is arranged on the inner side of the ring of the air guiding member, the burner main body is provided with a second gas channel for gas transmission, a second gas nozzle is arranged on the burner main body, the gas in the second gas channel can be output through the second gas nozzle, the output end of the second gas nozzle faces upward and corresponds to the second guiding wall, so that the gas output by the second gas nozzle can be sprayed onto the second guiding wall and spread along the second guiding wall to form a gas film, and the ignition assembly can ignite the gas on the second guiding wall.
[0008] According to some embodiments of the present utility model, the first guiding wall is in the shape of an inverted frustum of a cone, and the second guiding wall is in the shape of a frustum of a cone.
[0009] According to some embodiments of the present utility model, the output ends of the first gas nozzle and the second gas nozzle are both inclined, and the following relationships are satisfied between the first gas nozzle and the first guiding wall: 2A > B, where A is the inclination angle of the first gas nozzle relative to the horizontal plane, and B is the conversion angle corresponding to the taper of the first guiding wall; the following relationship is satisfied between the second gas nozzle and the second guiding wall: 2C > D, where C is the inclination angle of the second gas nozzle relative to the horizontal plane, and D is the conversion angle corresponding to the taper of the second guiding wall.
[0010] According to some embodiments of the present utility model, the burner main body is provided with an air inlet channel, the first gas channel is in a ring channel structure and is connected and communicated with the air inlet channel, one end of the second gas channel is connected and communicated with the air inlet channel, and the other end of the second gas channel is connected and communicated with the side of the first gas channel away from the air inlet channel.
[0011] According to some embodiments of the present utility model, the burner main body is provided with a positioning table for placing the air guiding member, and a positioning portion protruding upward is arranged on the outer side of the positioning table, and the positioning portion is used to limit the placement position of the air guiding member on the positioning table.
[0012] According to some embodiments of the present utility model, the ignition assembly is arranged below the air guiding member and includes a third gas nozzle and an ignition needle, the output end of the third gas nozzle faces the position between the first guiding wall and the second guiding wall, and the gas output by the third gas nozzle can be ignited by the ignition needle and respectively ignite the gas on the first guiding wall and the second guiding wall.
[0013] According to some embodiments of the present utility model, the burner body is provided with a flame dividing part, the flame dividing part is located above the third gas nozzle and between the first guiding wall and the second guiding wall, and the flame dividing part can respectively divide the gas output by the third gas nozzle to the first guiding wall and the second guiding wall.
[0014] According to some embodiments of the present utility model, the ignition assembly further includes a protective shell, the protective shell has an ignition channel with an open upper side, the third gas nozzle is arranged in the ignition channel, and the protective shell is provided with an ejection hole communicated with the ignition channel.
[0015] The cooking stove according to the second aspect embodiment of the present utility model includes a wall-hitting type burner head burner according to the first aspect embodiment of the present utility model above.
[0016] The cooking stove according to the embodiment of the present utility model has at least the following beneficial effects: By adopting the above-mentioned wall-hitting type burner head burner, it can increase the contact area between the output gas and air, which is beneficial to improving the combustion efficiency of the gas and saving energy.
[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings
[0018] The above-mentioned and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:
[0019] Figure 1 is a schematic structural diagram of a wall-hitting type burner head burner according to an embodiment of the present utility model;
[0020] Figure 2 is Figure 1 a partial structural diagram of the wall-hitting type burner head burner in ;
[0021] Figure 3 is Figure 1 a first cross-sectional structural diagram of the wall-hitting type burner head burner in ;
[0022] Figure 4 is Figure 1 a second cross-sectional structural diagram of the wall-hitting type burner head burner in ;
[0023] Figure 5 is Figure 1 a third cross-sectional structural diagram of the wall-hitting type burner head burner in.
[0024] Reference Signs:
[0025] Burner body 100, first gas channel 101, second gas channel 102, air inlet channel 103, first gas nozzle 110, second gas nozzle 120, positioning platform 130, positioning portion 131, flame dividing portion 132;
[0026] Gas guiding member 200, first guiding wall 201, second guiding wall 202;
[0027] Ignition assembly 300, ignition channel 301, ejector hole 302, third gas nozzle 310, ignition pin 320, protective shell 330. Detailed implementation manners
[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the 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 drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.
[0029] In the description of the present utility model, it should be understood that if the orientation description is involved, such as the orientation or positional relationship indicated by up, down, etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0030] In the description of the present utility model, if words such as several, greater than, less than, exceeding, above, below, within, etc. appear, wherein the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number.
[0031] If the first and the second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0032] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0033] Refer to Figure 1 , Figure 2 and Figure 3, a wall-hitting type burner head, which includes a burner body 100, a gas guiding member 200 and an ignition assembly 300. The burner body 100 is provided with a first gas passage 101 for gas transportation. A first gas nozzle 110 is provided on the burner body 100. The gas in the first gas passage 101 can be output through the first gas nozzle 110. The gas guiding member 200 is arranged on the burner body 100 and has a first guiding wall 201. The output end of the first gas nozzle 110 faces upward and corresponds to the first guiding wall 201, so that the gas output by the first gas nozzle 110 can be sprayed onto the first guiding wall 201 and spread along the first guiding wall 201 to form a gas film. The ignition assembly 300 is connected to the burner body 100 and is used to ignite the gas on the first guiding wall 201.
[0034] It can be understood that as Figure 1 , Figure 2 and Figure 3 shown, during use, gas is input into the first gas passage 101. The gas in the first gas passage 101 is sprayed and output through the first gas nozzle 110 and sprayed onto the first guiding wall 201. After the sprayed air flow collides with the first guiding wall 201, the flow direction will change, resulting in the air flow spreading on the wall surface and spreading along the first guiding wall 201 to form a gas film. Subsequently, the ignition assembly 300 ignites the gas on the first guiding wall 201 to achieve combustion heating. By setting a wall-hitting type gas output structure, the output gas spreads to form a gas film after hitting the wall, thereby increasing the contact area between the output gas and air, which is beneficial to improving the combustion efficiency of the gas and saving energy.
[0035] During actual application, the specific structures of the burner body 100, the gas guiding member 200 and the ignition assembly 300 can all be set accordingly according to actual usage needs and will not be described in detail here. Specific descriptions will be given below.
[0036] In some embodiments, the gas guiding member 200 is annular. The first guiding wall 201 is arranged on the outer side of the ring of the gas guiding member 200. A second guiding wall 202 is arranged on the inner side of the ring of the gas guiding member 200. The burner body 100 is provided with a second gas passage 102 for gas transportation. A second gas nozzle 120 is provided on the burner body 100. The gas in the second gas passage 102 can be output through the second gas nozzle 120. The output end of the second gas nozzle 120 faces upward and corresponds to the second guiding wall 202, so that the gas output by the second gas nozzle 120 can be sprayed onto the second guiding wall 202 and spread along the second guiding wall 202 to form a gas film. The ignition assembly 300 can ignite the gas on the second guiding wall 202.
[0037] It can be understood that as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the air guiding member 200 is in a circular ring shape. The first guiding wall 201 is the outer side wall of the circular ring of the air guiding member 200, and the second guiding wall 202 is the inner side wall of the circular ring of the air guiding member 200. A plurality of first gas nozzles 110 are provided and are spaced around the air guiding member 200. A plurality of second gas nozzles 120 are also provided and are spaced corresponding to the second guiding wall 202. The gas output by the plurality of first gas nozzles 110 spreads out on the first guiding wall 201 to form an outer ring air film, and the gas output by the plurality of second gas nozzles 120 spreads out on the first guiding wall 201 to form an inner ring air film. The ignition assembly 300 ignites the gas of the outer ring air film and the inner ring air film to form an inner and outer fire ring, so as to achieve a better cooking heating effect.
[0038] In actual application, the burner of the stove head can also use single-ring fire heating, or the number of guiding walls and the setting of gas nozzles can be increased accordingly as needed to achieve multi-ring fire heating, which can be specifically set according to actual usage needs.
[0039] Furthermore, the first guiding wall 201 is in the shape of an inverted frustum of a cone, and the second guiding wall 202 is in the shape of a frustum of a cone. It can be understood that as Figure 1 、 Figure 3 and Figure 4 shown, the outer contour diameter of the air guiding member 200 gradually increases in the direction from bottom to top, so that the first guiding wall 201 is in the shape of an inverted frustum of a cone, which can guide the flame on the first guiding wall 201 outwards and increase the range of the outer ring fire; the inner contour diameter of the air guiding member 200 gradually decreases in the direction from bottom to top, so that the second guiding wall 202 is in the shape of a frustum of a cone, which can guide the flame on the second guiding wall 202 towards the center and concentrate the firepower of the inner ring fire. Cooperating with the outer ring fire, the burner can achieve a better heating effect. In actual application, the first guiding wall 201 and the second guiding wall 202 can also be cylindrical structures or prismatic structures, which can be specifically set according to actual usage needs.
[0040] Furthermore, the output ends of the first gas nozzle 110 and the second gas nozzle 120 are both inclined. The first gas nozzle 110 and the first guiding wall 201 satisfy the relationship: 2A > B, where A is the inclination angle of the first gas nozzle 110 relative to the horizontal plane, and B is the conversion angle corresponding to the taper of the first guiding wall 201; the second gas nozzle 120 and the second guiding wall 202 satisfy the relationship: 2C > D, where C is the inclination angle of the second gas nozzle 120 relative to the horizontal plane, and D is the conversion angle corresponding to the taper of the second guiding wall 202.
[0041] It can be understood that as Figure 3 and Figure 4As shown, the output end of the first gas nozzle 110 and the output end of the second gas nozzle 120 are both arranged to be tilted upward, the tilt angle of the first gas nozzle 110 relative to the horizontal plane is A, and the conversion angle corresponding to the taper of the first guide wall 201 is B. When the two satisfy the relationship 2A>B, the angle between the injection direction of the first gas nozzle 110 and the tangent plane of the position where the gas is injected onto the first guide wall 201 is an acute angle, so that the gas can be tilted upwardly injected onto the first guide wall 201, and the gas will disperse upward when it hits the first guide wall 201, so that the gas on the first guide wall 201 can maintain the trend of flowing upward, reduce the diffusion loss of the gas in other directions, and can effectively inject The output gas is used for cooking and heating above; similarly, the inclination angle of the second gas nozzle 120 relative to the horizontal plane is C, and the conversion angle corresponding to the taper of the second guide wall 202 is D. When the two satisfy the relationship 2C>D, the angle between the injection direction of the second gas nozzle 120 and the tangent plane of the position where the gas is injected onto the second guide wall 202 is an acute angle, so that the gas can be injected obliquely upward to the second guide wall 202. The gas will disperse upward when it collides with the second guide wall 202, so that the gas on the second guide wall 202 can maintain an upward flow trend, reducing the diffusion and loss of the gas in other directions, and the injected gas can be effectively used for cooking and heating above.
[0042] In actual application, the conversion angles corresponding to the taper of the first guide wall 201 and the taper of the second guide wall 202 can be calculated by an inverse tangent function (ATAN), and the specific sizes of the angle values A, B, C and D can be set accordingly according to actual use needs.
[0043] In some embodiments, the burner body 100 is provided with an air inlet 103, the first gas channel 101 is an annular channel structure and is connected to the air inlet 103, one end of the second gas channel 102 is connected to the air inlet 103, and the other end of the second gas channel 102 is connected to the side of the first gas channel 101 away from the air inlet 103.
[0044] It is understandable that if Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the first gas channel 101 has an annular channel structure. The intake channel 103 is provided on one side of the first gas channel 101 and is in butt-connection and communication with the first gas channel 101. By setting one end of the second gas channel 102 to be in butt-connection and communication with the intake channel 103 and the other end to be in butt-connection and communication with the side of the first gas channel 101 away from the intake channel 103, when the gas is transported from the intake channel 103 to the first gas channel 101, it will be divided into two gas flows. As the gas is gradually output, the gas transportation pressure on the side of the first gas channel 101 away from the intake channel 103 will decrease. And because the second gas channel 102 is connected to this side of the first gas channel 101, it can supplement part of the gas to this side of the first gas channel 101 away from the intake channel 103, reducing the gas pressure difference on this side of the first gas channel 101 away from the intake channel 103, which is beneficial to ensuring the gas output pressure of the first gas nozzle 110 near this side and facilitating use. In actual application, the specific structures of the first gas channel 101 and the second gas channel 102 can also be changed accordingly according to actual use needs.
[0045] In some embodiments, a positioning platform 130 for placing the air guiding member 200 is provided on the burner main body 100. An upwardly protruding positioning portion 131 is provided on the outer side of the positioning platform 130, and the positioning portion 131 is used to limit the placement position of the air guiding member 200 on the positioning platform 130.
[0046] It can be understood that, as Figures 1 to 5 shown, the positioning platform 130 is circular to match the shape of the lower side of the air guiding member 200. An upwardly protruding positioning portion 131 is provided on the outer side of the positioning platform 130. When the air guiding member 200 is placed on the positioning platform 130, the positioning portion 131 is located on the outer side of the lower part of the air guiding member 200 to limit the placement position of the air guiding member 200 on the positioning platform 130, reducing the possibility of its movement and loosening and facilitating use. In actual application, the air guiding member 200 can also be connected to the burner main body 100 through a threaded structure or a clamping structure, etc., and can be specifically set accordingly according to actual use needs.
[0047] In some embodiments, the ignition assembly 300 is provided below the air guiding member 200 and includes a third gas nozzle 310 and an ignition needle 320. The output end of the third gas nozzle 310 faces the position between the first guiding wall 201 and the second guiding wall 202. The gas output by the third gas nozzle 310 can be ignited by the ignition needle 320 and respectively ignite the gas on the first guiding wall 201 and the second guiding wall 202.
[0048] It can be understood that, as Figure 1 、 Figure 2 and Figure 5As shown, the ignition pin 320 is located on one side of the third gas nozzle 310. The output end of the third gas nozzle 310 faces upward and is directly opposite to the positioning table 130, towards the position between the first guiding wall 201 and the second guiding wall 202. During use, part of the gas is conveyed through a pipeline to the third gas nozzle 310 and output from the third gas nozzle 310. The ignition pin 320 ignites the gas output from the third gas nozzle 310. The flame is blocked by the positioning table 130 or the lower side of the gas guiding member 200, and thus is divided into two strands, corresponding to the first guiding wall 201 and the second guiding wall 202 respectively, so as to ignite the gas on the first guiding wall 201 and the second guiding wall 202 respectively, realizing ignition and combustion. The structure is simple and convenient to use.
[0049] In actual application, in addition to the above structure, two ignition pins 320 can also be provided corresponding to the first guiding wall 201 and the second guiding wall 202 respectively to respectively ignite the gas thereon, or a fire guiding structure can be provided on the gas guiding member 200 to ignite one side inside or outside the ring of the gas guiding member 200, and the gas on the other side is ignited through the fire guiding structure, which can be specifically set according to actual use needs.
[0050] In some embodiments, the burner main body 100 is provided with a fire dividing part 132. The fire dividing part 132 is located above the third gas nozzle 310 and between the first guiding wall 201 and the second guiding wall 202. The fire dividing part 132 can respectively divert the gas output from the third gas nozzle 310 to the first guiding wall 201 and the second guiding wall 202.
[0051] It can be understood that as Figure 1 and Figure 5 shown, the fire dividing part 132 is located directly above the third gas nozzle 310, and its lower side is a "V" - shaped structure. By providing the fire dividing part 132, it is beneficial to guide and divide the gas output from the third gas nozzle 310 into two strands, corresponding to the first guiding wall 201 and the second guiding wall 202 respectively. After being ignited by the ignition pin 320, two strands of flames are formed accordingly, respectively igniting the gas on the first guiding wall 201 and the second guiding wall 202, which is convenient to use. In actual application, the lower side of the fire dividing part 132 can also be an arc - surface structure, which can be specifically set according to actual use needs.
[0052] In some embodiments, the ignition assembly 300 further includes a protective shell 330. The protective shell 330 has an ignition channel 301 with an upper - side opening. The third gas nozzle 310 is arranged in the ignition channel 301. The protective shell 330 is provided with an injection hole 302 communicating with the ignition channel 301.
[0053] It can be understood that as Figure 1 、 Figure 2 and Figure 5As shown, the protective shell 330 is fixedly connected to the burner body 100. The ignition needle 320 and the third gas nozzle 310 are both connected to the protective shell 330. The ignition needle 320 is located outside the protective shell 330, and the third gas nozzle 310 is arranged in the ignition channel 301 of the protective shell 330. By providing the protective shell 330, it is beneficial to protect the third gas nozzle 310 and prevent foreign objects from fouling the third gas nozzle 310, which may affect ignition. The ignition channel 301 is conducive to collecting and upwardly transporting the gas output by the third gas nozzle 310, preventing it from spreading prematurely, and facilitating its subsequent splitting into two streams. By providing the ejector holes 302 on the protective shell 330, when the gas is transported in the ignition channel 301, it can eject and supplement gas from the outside through the ejector holes 302, which is beneficial for subsequent ignition and convenient for use. In actual application, the specific structure of the protective shell 330 can be set accordingly according to actual usage requirements.
[0054] The cooking appliance according to the second aspect embodiment of the present invention includes the wall-hitting type burner according to the first aspect embodiment of the present invention described above.
[0055] The cooking appliance according to the embodiment of the present invention, by adopting the above-mentioned wall-hitting type burner, can increase the contact area between the output gas and air, which is beneficial to improving the combustion efficiency of the gas and saving energy.
[0056] Since the other components of the cooking appliance according to the embodiment of the present invention are known to those of ordinary skill in the art, they will not be described in detail here.
[0057] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the technical field, various changes can be made without departing from the gist of the present invention.
Claims
1. A wall-impacting furnace head burner, characterized in that: include: A burner body, wherein the burner body is provided with a first gas channel for gas transportation, and the burner body is provided with a first gas nozzle, and the gas in the first gas channel can be output through the first gas nozzle; A gas guide member is provided on the burner body and has a first guide wall, the output end of the first gas nozzle is upward and corresponds to the first guide wall, so that the gas output by the first gas nozzle can be sprayed to the first guide wall and spread along the first guide wall to form a gas film; An ignition assembly is connected to the burner body and is used for igniting the gas on the first guide wall.
2. The wall-impacting furnace head burner according to claim 1, characterized in that: The gas guide is annular, the first guide wall is arranged on the outer side of the ring of the gas guide, the second guide wall is arranged on the inner side of the ring of the gas guide, the burner body is provided with a second gas channel for gas transportation, the burner body is provided with a second gas nozzle, the gas in the second gas channel can be output through the second gas nozzle, the output end of the second gas nozzle is upward and corresponds to the second guide wall, so that the gas output by the second gas nozzle can be sprayed to the second guide wall and spread along the second guide wall to form a gas film, and the ignition component can ignite the gas on the second guide wall.
3. The wall-impacting furnace head burner according to claim 2, characterized in that: The first guide wall is in an inverted truncated cone shape, and the second guide wall is in a truncated cone shape.
4. The wall-impacting furnace head burner according to claim 3, characterized in that: The output end of the first gas nozzle and the output end of the second gas nozzle are both inclined, and the first gas nozzle and the first guide wall satisfy the relationship: 2A>B, wherein A is the inclination angle of the first gas nozzle relative to the horizontal plane, and B is the conversion angle corresponding to the taper of the first guide wall; the second gas nozzle and the second guide wall satisfy the relationship: 2C>D, wherein C is the inclination angle of the second gas nozzle relative to the horizontal plane, and D is the conversion angle corresponding to the taper of the second guide wall.
5. The wall-impacting furnace head burner according to claim 2, characterized in that: The burner body is provided with an air inlet, the first gas channel is an annular channel structure and is connected to the air inlet, one end of the second gas channel is connected to the air inlet, and the other end of the second gas channel is connected to the side of the first gas channel away from the air inlet.
6. The wall-impacting furnace head burner according to claim 2, characterized in that: The burner body is provided with a positioning platform for placing the air guide, and the outer side of the positioning platform is provided with a positioning portion protruding upwards, and the positioning portion is used to limit the placement position of the air guide on the positioning platform.
7. The wall-impacting furnace head burner according to claim 2, characterized in that: The ignition assembly is arranged below the gas guide and includes a third gas nozzle and an ignition needle. The output end of the third gas nozzle faces the position between the first guide wall and the second guide wall. The gas output by the third gas nozzle can be ignited by the ignition needle and ignite the gas on the first guide wall and the second guide wall respectively.
8. The wall-impacting furnace head burner according to claim 7, characterized in that: The burner body is provided with a fire dividing portion, which is located above the third gas nozzle and between the first guide wall and the second guide wall. The fire dividing portion can divide the gas output by the third gas nozzle to the first guide wall and the second guide wall respectively.
9. The wall-impacting furnace head burner according to claim 7, characterized in that: The ignition assembly further comprises a protective shell, wherein the protective shell has an ignition passage with an upper opening, the third gas nozzle is arranged in the ignition passage, and the protective shell is provided with an ejection hole connected with the ignition passage.
10. A cooking appliance, characterized in that: It comprises the wall-impacting stove head burner according to any one of claims 1 to 9.