Combustor and stove

Abstract

The invention provides a combustor and a stove. The combustor comprises a first base, a first injection part and a first gas mixing part. Two first channels are formed in the first base, and a first nozzle is arranged on an air outlet of each first channel; the first injection part is connected to the first base through a first rotating mechanism; the first gas mixing part is arranged at the other end of the first injection part, and a first opening is formed in the top of the first gas mixing part; when one end of the first injection part faces one of the first nozzles, the first gas mixing part is arranged at a first position, and when one end of the first injection part faces the other first nozzle, the first gas mixing part is arranged at a second position. According to the burner, a stove adopting the burner can meet the cooking requirement of western food and can also meet the stir-frying requirement of Chinese food.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, in particular to a burner and a stove. Background Art

[0002] With the continuous integration and development of Eastern and Western eating habits, people have increasingly wider requirements for the adjustment range of gas stove power (firepower). Western food requires uniform firepower, while Chinese food requires small concentrated fire and high fire for stir-frying.

[0003] However, most of the burners in the prior art have a double ejector tube structure, that is, the gas and air are mixed through two ejector tubes, and introduced into the outer ring gas channel and the inner ring gas channel (or the center gas channel) respectively, and ignited to produce the outer ring flame and the inner ring flame (or the center flame). In addition, there are also three ejector tubes and a single ejector tube structure. Cookers are usually composed of two or three burners with the same ejector tube structure, and it is difficult to achieve the firepower of a single cooker to meet both the cooking needs of Western food and the stir-frying needs of Chinese food. Summary of the invention

[0004] The object of the present invention is to solve at least one of the above problems and / or other problems existing in the prior art.

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, a burner is provided, the burner comprising a first base, a first ejection part and a first gas mixing part. Two first channels are formed on the first base, and a first nozzle is arranged on the gas outlet of each first channel; the first ejection part is connected to the first base through a first rotating mechanism; the first gas mixing part is arranged at the other end of the first ejection part and has a first opening at the top; wherein, when one end of the first ejection part faces one of the first nozzles, the first gas mixing part is arranged at a first position, and when one end of the first ejection part faces another of the first nozzles, the first gas mixing part is arranged at a second position.

[0007] According to one embodiment of the present invention, the first rotating mechanism includes a driving part, a gear and a first shell, the driving part is connected to the first base, the gear is coaxially arranged with the output shaft of the driving part, at least a portion of the inner wall of the first shell is provided with a rack meshing with the gear, and the first ejection part is connected to the first shell.

[0008] According to one embodiment of the present invention, the first shell extends along its axial direction to between the air inlet of the first injection part and the first nozzle, and an air inlet hole is opened corresponding to the air inlet of the first injection part, and the area of ​​the air inlet hole is larger than the area of ​​the air inlet of the first injection part.

[0009] According to an embodiment of the present invention, the first nozzle extends out of the outer periphery of the first base, and there is a gap between the inner side wall of the first shell and the first base, and the gap is configured to avoid the first nozzle when the first shell rotates.

[0010] According to one embodiment of the present invention, the first shell is provided with a first connecting ear extending outward, the first connecting ear is provided with a first pin hole extending along the tangent direction of the first base, the first ejection part is provided with a connecting piece, the connecting piece is provided with a second pin hole, and a first pin shaft is passed through the first pin hole and the second pin hole to rotatably connect the first ejection part to the first shell.

[0011] According to one embodiment of the present invention, the connecting member includes a first connecting plate in a "U" shape and a second connecting plate connected to the first ejection portion, the two end portions of the first connecting plate are respectively arranged on both sides of the first connecting ear and the second pin holes are respectively arranged, and the middle portion of the first connecting plate is connected to the second connecting plate.

[0012] According to an embodiment of the present invention, a cross section of the first gas mixing portion in a rotation plane is comma-shaped.

[0013] According to one embodiment of the present invention, the burner further includes a first fire cover having a first fire hole on the top and a first ignition needle connected to the outside of the first air mixing section, the shape of the first fire cover corresponds to the shape of the first air mixing section and is covered at the first opening, the side wall of the first fire cover is provided with a first fire transfer hole, and the needle head portion of the first ignition needle corresponds to the first fire transfer hole.

[0014] According to one embodiment of the present invention, each of the first channels includes at least a first section, a second section and a third section which are connected in sequence, the first section extends inward from the outer periphery of the first base to near the center of the first base, the second section extends along the axial direction of the first base, the third section extends outward from near the center of the first base to the outer periphery of the first base, and the first nozzle is arranged at the air outlet of the third section.

[0015] According to another aspect of the present invention, a stove is provided. The stove comprises the aforementioned burner and a second burner. The second burner comprises a second gas mixing portion having a second opening at the top, and the first gas mixing portion is adapted to the second gas mixing portion so that the flames of the first opening and the second opening are in a complete first shape.

[0016] An embodiment of the present invention has the following advantages or beneficial effects:

[0017] The burner of the present invention can set the first injection part at different working positions or use it alone through the first rotating mechanism, or form a combined burner with another burner with a larger heat load, and has different first channels and first nozzles corresponding to when the first mixing part is set at the first position and the second position, respectively, so that the stove using the burner can meet the cooking needs of Western food and the stir-frying needs of Chinese food. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0019] Figure 1 A perspective view of a burner assembly according to an exemplary embodiment of the present invention is shown with the burner in a first position.

[0020] Figure 2 Show Figure 1 A perspective view of the cooktop is shown with the burner in a second position.

[0021] Figure 3 A perspective view of a burner according to an exemplary embodiment of the present invention is shown.

[0022] Figure 4 Show Figure 3 Exploded view of the burner shown.

[0023] Figure 5 Show Figure 3 A schematic diagram of a first rotating mechanism of a burner is shown.

[0024] Figure 6 Show Figure 5 A schematic diagram of the first channel of the burner is shown.

[0025] Figure 7 A perspective view of a second burner showing an exemplary embodiment of the present invention is shown.

[0026] Figure 8 Show Figure 7 A schematic diagram of the interior of the second burner is shown.

[0027] Fig. 9 Show Figure 7 An exploded view of the second burner is shown.

[0028] Fig.10 A diagram showing the overlap of a burner and a second burner according to an exemplary embodiment of the present invention is shown.

[0029] Fig.11 A perspective view of a panel assembly according to an exemplary embodiment of the present invention is shown.

[0030] Fig.12 Show Fig.11 Exploded view of the panel assembly shown.

[0031] Fig.13 Show Fig.11 A top view of the panel assembly is shown.

[0032] Fig.14 Show Fig.13 The panel assembly is shown in a cross-sectional view along line AA.

[0033] The reference numerals are described as follows:

[0034] 1. Burner; 11. First ejection part; 111. Connecting piece; 1111. Second pin hole; 1112. First connecting plate; 1113. Second connecting plate; 12. First gas mixing part; 121. First opening; 13. First base; 131. First passage; 1311. First section; 1312. Second section; 1313. Third section; 132. First fixed leg; 14. First nozzle; 15. First fire cover; 151. First fire hole; 152. First fire transmission hole; 16. First ignition needle; 2. Second burner ; 21, second gas mixing section; 211, second opening; 212, first section; 213, second section; 2131, second channel; 2132, air avoidance area; 22, second injection section; 221, second injection cavity; 2211, contraction section; 2212, throat section; 2213, primary diffuser section; 2214, secondary diffuser section; 222, nozzle mounting plate; 23, second fixed leg; 24, second fire cover; 241, second fire hole; 242, second fire transmission hole; 25, second ignition needle; 26, third fixed leg ; 3. first rotating mechanism; 31. driving part; 32. first shell; 321. rack; 322. air inlet hole; 323. first connecting ear; 3231. first pin hole; 4. gap; 5. first pin shaft; 6. cooker shell; 7. panel assembly; 71. first combustion hole; 711. first hole; 72. second combustion hole; 721. second hole; 722. third hole; 723. fourth hole; 73. third combustion hole; 731. fifth hole; 732. sixth hole; 733. seventh hole; 74. panel body; 7 41. circular hole; 742. first sealing ring; 743. second sealing ring; 75. panel reinforcement plate; 751. avoidance portion; 752. fourth mounting hole; 76. pot support plate; 761. first hole group; 7611. first mounting hole; 762. second hole group; 7621. second mounting hole; 763. third hole group; 7631. third mounting hole; 77. pot support; 771. first pot support; 772. second pot support; 773. third pot support; 774. pot support body; 775. pot support fixing part. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0036] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0037] Figure 1 and Figure 2 FIG. 2 shows a cooker according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, the stove may include a stove housing 6, a burner 1 and a second burner 2. The stove housing 6 surrounds a stove cavity that accommodates at least a portion of the burner 1 and the second burner 2. The burner 1 and the second burner 2 are respectively fixed to the bottom of the stove housing 6, and the top portions of the burner 1 and the second burner 2 extend upwardly out of the stove cavity.

[0038] According to an exemplary embodiment of the burner 1, Figure 3 and Figure 4 As shown, the burner 1 includes a first ejector 11, a first gas mixing portion 12 and a first base 13. The first ejector 11 is provided with the first gas mixing portion 12 at one end, and the top of the first gas mixing portion 12 has a first opening 121, and the shape of the first opening 121 is the first part of the first shape. The other end of the first ejector 11 is connected to the first base 13 through the first rotating mechanism 3, so that the first ejector 11 drives the first gas mixing portion 12 to rotate. Figure 1 The second burner 2 includes a second gas mixing section 21, and the top of the second gas mixing section 21 has a second opening 211, and the shape of the second opening 211 is the second part of the first shape. When the first gas mixing section 12 is set in the first position, since no other burners are arranged in the first position, the burner 1 is used as a single burner. When the first gas mixing section 12 is set in the second position, as shown in FIG. Fig.10 As shown, a second burner 2 is arranged at a position corresponding to the second position, and the first gas mixing section 12 is adapted to the second gas mixing section 21 so that the flames of the first opening 121 and the second opening 211 are in a complete first shape. Of course, when the second burner 2 can also be arranged in the first position, the first gas mixing section 12 and the second burner 2 form a combined burner when they are in the first position, and are used alone in the second position. It can be understood that the first shape is any shape that can include a first part and a second part, such as a circle, a quadrilateral or a triangle, including but not limited to the shapes listed above, and the first part and the second part are two parts divided by the first shape. For example, the cross-sections of the first gas mixing section 12 and the second gas mixing section 21 in the rotation plane are both comma-shaped, and the first gas mixing section 12 and the second gas mixing section 21 are connected end to end to form a circle.

[0039] In addition, the burner 1 further comprises a first fire cover 15 having a first fire hole 151 on the top and a first ignition needle 16 connected to the outer side (the side where the arc is located) of the first gas mixing portion 12. The shape of the first fire cover 15 corresponds to the shape of the first gas mixing portion 12 and is covered at the first opening 121. The side wall of the first fire cover 15 is provided with a first fire transfer hole 152, and the needle head portion of the first ignition needle 16 corresponds to the first fire transfer hole 152.

[0040] According to an exemplary embodiment of the first base 13, Figure 5 As shown, the first base 13 is formed with two first channels 131, and the burner 1 may further include first nozzles 14 respectively arranged at the gas outlets of the two first channels 131. When the first gas mixing part 12 is set at the first position, the air inlet of the first injection part 11 faces one of the first nozzles 14. When the first gas mixing part 12 is set at the second position, the air inlet of the first injection part 11 faces the other first nozzle 14. The two first nozzles 14 correspond to the two positions of the first gas mixing part 12, and the negative pressure effect generated when the gas in the first nozzle 14 enters the first injection part 11 simultaneously brings the air between the air inlet of the first injection part 11 and the first nozzle 14 into the first injection part 11. In addition, the bottom of the first base 13 is evenly spaced and annularly provided with a plurality of first fixing legs 132 extending along the axial direction thereof, respectively, for connecting the first base 13 to the cooker housing 6. It can be understood that in this embodiment, a first channel 131 is respectively arranged on the first base 13 for the first position and the second position of the first gas mixing part 12. In some other specific embodiments, a first channel 131 having an air inlet channel and two air outlet channels can also be provided on the first base 13, one air inlet channel is connected to the two air outlet channels respectively, and a control valve is provided at the connection point to control the air inlet channel to selectively connect to one of the air outlet channels.

[0041] According to an exemplary embodiment of the first channel 131, Figure 6As shown, the first channel 131 at least includes a first section 1311, a second section 1312 and a third section 1313 which are connected in sequence, the first section 1311 extends inward from the outer periphery of the first base 13 to the center near the first base 13, the second section 1312 extends along the axial direction of the first base 13, and the third section 1313 extends outward from the center near the first base 13 to the outer periphery of the first base 13, the first section 1311 and the third section 1313 extend respectively along the radial direction of the first base 13 and are arranged in parallel, and the first section 1311 is located below the third section 1313, the first nozzle 14 is arranged at the air outlet of the third section 1313, and the air inlet of the first section 1311 is provided with a connector for connecting an air intake hose. It can be understood that the first channel 131 includes but is not limited to the above-mentioned structure. For example, the first channel 131 can also include any one, two or more connected sections. The air inlet of the first channel 131 can be set at a position convenient for connecting the air intake hose, and the air outlet of the first channel 131 can adapt to the position of the air inlet of the first injection section 11 when the first mixing section 12 is set at the first position or the second position.

[0042] According to an exemplary embodiment of the first rotating mechanism 3, Figure 4 As shown, the first rotating mechanism 3 may include a driving part 31, a gear (not shown) and a first shell 32. The driving part 31 may be an AC motor, a DC motor or a stepping motor or other driving parts that are suitable for rotating the first ejection part 11 and the first gas mixing part 12 in a narrow space. The driving part 31 is connected to the first base 13, so that the output shaft of the driving part 31 extends along the axial direction of the first base 13, so that the gear is connected to the output shaft of the driving part 31 and is coaxially arranged with the output shaft. One end of the first shell 32 is open and its open end is installed toward the first base 13, and at least a portion of the inner side wall of the first shell 32 (such as Figure 4 The side wall of the first housing 32 facing away from the first ejection part 11 is provided with a rack 321 meshing with a gear. The first ejection part 11 is connected to the first housing 32. It is understood that the number of gears includes but is not limited to only one. When the distance from the output shaft to the rack 321 is large, setting one gear may make the first housing 32 unable to be coaxially connected with the first base 13, so two or more gears can be set to convert the transmission.

[0043] In some specific embodiments, the inner side wall of the first shell 32 corresponding to the opening may extend toward the bottom of the first base 13 to a position between the air inlet of the first ejection portion 11 and the first nozzle 14. In order to prevent the first shell 32 from forming an obstruction between the first nozzle 14 and the first ejection portion 11, Figure 4 and Figure 5The first shell 32 shown is provided with an air intake hole 322 at a position corresponding to the air intake of the first ejection part 11, and the area of ​​the air intake hole 322 is larger than the area of ​​the air intake of the first ejection part 11, so that more air can be inhaled when the gas enters the first ejection part 11 from the first nozzle 14. Of course, in some other specific embodiments, the inner side wall of the first shell 32 does not extend to the position between the air intake of the first ejection part 11 and the first nozzle 14, and the air intake hole 322 may not be provided.

[0044] Furthermore, if Figure 6 As shown, the first nozzle 14 extends out from the outer periphery of the first base 13. In order to avoid interference between the first shell 32 and the first nozzle 14 when driving the first injection portion 11 and the first mixing portion 12 to rotate, a gap 4 can be set between the inner wall of the first shell 32 and the first base 13, so that the first shell 32 can avoid the first nozzle 14 when the first shell 32 rotates.

[0045] Moreover, in order to facilitate cleaning of the corresponding positions on the lower sides of the first ejection portion 11 and the first gas mixing portion 12, or to disassemble the panel assembly 7, it is necessary to rotatably connect the first ejection portion 11 and the first gas mixing portion 12 to the first shell 32 so that the first ejection portion 11 and the first gas mixing portion 12 can be lifted upward relative to the direction of the plane where the panel assembly 7 is located, for example Figure 4 Thus, a first connecting ear 323 may be provided extending outward from the first shell 32, and the first connecting ear 323 may be provided with a first pin hole 3231 extending along the tangent direction of the first base 13. Correspondingly, the first ejection part 11 may be provided with a connecting member 111, and the connecting member 111 may be provided with a second pin hole 1111. After the first pin shaft 5 passes through the first pin hole 3231 and the second pin hole 1111, the first ejection part 11 may be rotatably connected to the first shell 32.

[0046] According to an exemplary embodiment of the connecting member 111, Figure 4 As shown, the connecting member 111 may include a first connecting plate 1112 and a second connecting plate 1113. The first connecting plate 1112 is in a horizontal and symmetrical "U" shape, and the two ends of the first connecting plate 1112 are respectively provided with second pin holes 1111, and the two ends are respectively provided on both sides of the first connecting ear 323. The second connecting plate 1113 is in a straight plate shape, and its approximately middle position is used for the end of one side of the first ejection part 11 away from the first mixing part 12 to pass through, and the approximately circumferential position of the second connecting plate 1113 is connected to the middle of the first connecting plate 1112 by bolts.

[0047] According to an exemplary embodiment of the second gas mixing unit 21, Figure 7As shown, the second gas mixing portion 21 includes a first section 212 and a second section 213 arranged from top to bottom along the axial direction thereof. A second opening 211 is arranged at the top of the first section 212, and at least a portion of the top of the second section 213 is connected to the first section 212. For example, the shape of the cross section of the first section 212 perpendicular to the axial direction of the second gas mixing portion 21 is configured as the second part of the first shape, and the shape of the top surface of the second section 213 is configured as the first shape, so that the entire bottom surface of the first section 212 is connected to a portion of the top surface of the second section 213, and then the portion of the second section 213 that is not connected to the first section 212 forms a clearance area 2132 for the first gas mixing portion 12, so that when the first gas mixing portion 12 and the second gas mixing portion 21 are adapted, the first gas mixing portion 12 can also be arranged in the clearance area 2132, and the first gas mixing portion 12 is supported by the second gas mixing portion 21.

[0048] According to an exemplary embodiment of the second section 213, Figure 8 As shown, the second section 213 is further provided with a second channel 2131 extending axially around a portion thereof, the bottom of the second channel 2131 rises in a spiral shape, and the top of the second channel 2131 is connected to the first section 212, so that the gas mixture can rise smoothly in the second section 213, avoiding turbulent airflow caused by the gas mixture hitting the inner wall of the second section 213.

[0049] In the above embodiment, the second burner 2 further includes a second ejection portion 22 connected to a side of the second section 213 away from the first section 212, and the second ejection portion 22 is communicated with the bottom end of the second channel 2131. Specifically, the second ejection portion 22 is surrounded to form a second ejection cavity 221, and the second ejection cavity 221 may include a gas flow direction ( Figure 8The second diffuser section 2214 is a cavity structure larger than the first expansion section, and is connected to the bottom end of the second channel 2131 of the second section 213. The gas mixture is guided to gradually rise into the first section 212 through the spirally ascending second channel 2131. When the initial gas enters the contraction section 2211, as the cross-sectional area of ​​the contraction section 2211 gradually decreases, the gas forms a jet to generate entrainment flow, and a negative pressure zone appears due to the high speed of the gas flow, thereby absorbing a part of the air from the nozzle into the contraction section 2211 along with the gas to generate a mixed gas. After the mixed gas enters the throat section 2212, since the cross-sectional area of ​​the throat section 2212 remains unchanged as the gas flows, the mixed gas can exchange kinetic energy in the throat section 2212, so that during the flow process, the velocity field of the mixed gas gradually becomes uniformly distributed. Subsequently, the mixed gas enters the primary diffuser section 2213, and the pressure increases due to the reduction in flow velocity. Part of the dynamic pressure of the mixed gas is converted into static pressure, so that the pressure of the mixed gas is higher than the pressure of the ejection fluid that has just entered the contraction section 2211, and the flow velocity of the mixed gas is reduced. At this time, the gas and air are mixed more evenly. After the mixed gas enters the secondary diffuser section 2214, the static pressure further increases, and the flow velocity of the mixed gas is further reduced. At this time, the mixed gas is mixed more evenly. The design of the primary diffuser section 2213 plus the secondary diffuser section 2214 makes the gas and air mix more evenly, and the flow velocity of the mixed gas is also greatly reduced. It can be understood that the pressure of the fluid acting vertically on the wall is called static pressure, and when the mixed gas flows in the second ejection part 22 of the pipeline structure, the pressure generated by the velocity is called dynamic pressure.

[0050] Preferably, the second ejection portion 22 and the second gas mixing portion 21 are formed into a whole by some process, for example, by die-casting or integral casting of metal materials. Figures 7 to 9 As shown, a plurality of second fixing legs 23 are arranged at intervals at the bottom of the second gas mixing portion 21 and the bottom of the second ejection portion 22. For example, the second fixing leg 23 arranged at the position of the second ejection portion 22 corresponding to the throat section 2212 and the two second fixing legs 23 arranged at intervals at the bottom of the second section 213 work together to form a tripod shape to support and fix the second burner 2.

[0051] In the above embodiment, the second burner 2 may further include a second fire cover 24 having a second fire hole 241 on the top and a second ignition needle 25 connected to the outer side (the side where the arc is located) of the second gas mixing portion 21. The shape of the second fire cover 24 corresponds to the shape of the second gas mixing portion 21 and is covered at the second opening 211. The side wall of the second fire cover 24 is provided with a second fire hole 242, and the needle head portion of the second ignition needle 25 corresponds to the second fire hole 242.

[0052] In the above embodiment, the cooker may further include: Figures 11 to 14 The panel assembly 7 shown in the figure is provided with a first combustion hole 71 and a second combustion hole 72. After the second burner 2 is fixed to the cooker housing 6, the second gas mixing part 21 of the second burner 2 can pass through the second combustion hole 72 and the second opening 211 of the second gas mixing part 21 is arranged in the plane where the first gas mixing part 12 is located. It can be understood that the second gas mixing part 21 may not completely pass through the second combustion hole 72, but pass through a part of the depth of the first combustion hole 71 and be arranged in the first combustion hole 71. After the burner 1 is fixed to the cooker housing 6, the first gas mixing part 12 of the burner 1 can pass through the first combustion hole 71 or the second combustion hole 72 or be arranged in the first combustion hole 71 or the second combustion hole 72. When the first gas mixing part 12 is arranged in the first combustion hole 71, it is in the first position, in which the burner 1 can be used alone to obtain a smaller heat load. When the first gas mixing part 12 is arranged in the second combustion hole 72, it can form a combined burner with a larger heat load with the second burner 2. Compared with the prior art, the optimal power configuration can be achieved, which is suitable for various use occasions and meets the requirements of uniform firepower cooking of Western food and high-power fierce fire stir-frying of Chinese food. Further, the panel assembly 7 can also be provided with a third combustion hole 73, at which a conventional burner can be provided.

[0053] According to an exemplary embodiment of the panel assembly 7, Fig.12As shown, the panel assembly 7 may include a panel body 74, a panel reinforcement plate 75, a pot support plate 76, and at least two pot supports 77 arranged in sequence from bottom to top. The first combustion hole 71 includes a first hole 711, the second combustion hole 72 includes a second hole 721, a third hole 722, and a fourth hole 723, and the third combustion hole 73 includes a fifth hole 731, a sixth hole 732, and a seventh hole 733; the panel body 74 is generally rectangular and arranged in the horizontal direction, and is provided with a second hole 721, a seventh hole 733, and a circular hole 741 for the first base 13 of the burner 1 to pass through. The panel reinforcement plate 75 is generally rectangular and arranged in the horizontal direction, and is provided with a plurality of mounting features at intervals along its periphery, and is provided with a third hole 722, a sixth hole 732, and an avoidance portion 751 corresponding to the circular hole 741. The avoidance portion 751 is in the shape of an arc-shaped and inwardly concave groove. The pot support plate 76 is generally in the shape of a rectangle arranged along the horizontal plane, and is provided with a first hole 711, a fourth hole 723 and a fifth hole 731. The pot support plate 76 is arranged at a certain distance from the panel reinforcement plate 75, and the distance enables the first ejection part 11 and the first gas mixing part 12 to move between the panel reinforcement plate 75 and the pot support plate 76, and switch between the first position and the second position. Due to the existence of the distance, the pot support plate 76 is also provided with a side facing the panel body 74 ( Fig.14 The bottom side of the pot support plate 76 is shown as a flange extending from the bottom side of the pot support plate 76, through which the bottom side of the pot support plate 76 can be covered.

[0054] For an exemplary embodiment of at least three pot supports 77, continue to refer to Fig.12, at least two pot supports 77 include a first pot support 771, a second pot support 772 and a third pot support 773. The pot support plate 76 is provided with a first hole group 761 at the periphery corresponding to the first hole 711. When the first pot support 771 is provided corresponding to the first hole 711, the first pot support 771 passes through the first hole group 761 and is connected to the pot support plate 76 at a substantially middle position. The bottom of the portion after passing through the first hole group 761 is connected to the panel reinforcement plate 75, so that a portion of the first pot support 771 extends out of the pot support plate 76 to support the pot placed thereon, and the other portion is provided between the pot support plate 76 and the panel reinforcement plate 75, so that there is a certain distance between the pot support plate 76 and the panel reinforcement plate 75. Similarly, the pot support plate 76 is provided with a second hole group 762 at the periphery corresponding to the fourth hole 723. When the second pot support 772 is provided corresponding to the fourth hole 723, the first pot support 771 passes through the second hole group 762, and the connection methods of the first pot support 771 with the pot support plate 76 and the panel reinforcement plate 75 can refer to the connection methods of the first pot support 771 with the pot support plate 76 and the panel reinforcement plate 75, which will not be repeated here. In addition, the pot support plate 76 is provided with a third hole group 763 at the periphery corresponding to the seventh hole 733. When the third pot support 773 is provided corresponding to the seventh hole 733, the third pot support 773 passes through the third hole group 763.

[0055] Specifically, Fig.13 and Fig.14As shown, the first pot support 771 and the second pot support 772 respectively include four pot support bodies 774 arranged at equal intervals. Correspondingly, the first hole group 761 includes four first mounting holes 7611 for mounting the four pot support bodies 774 of the first pot support 771 one by one, and the second hole group 762 includes four second mounting holes 7621 for mounting the four pot support bodies 774 of the second pot support 772 one by one. For the first pot support 771 installed at the first hole 711, the four pot support bodies 774 are arranged at intervals of 90°, wherein two opposite pot support bodies 774 are arranged along the first direction (the length direction of the pot support plate 76), and another pair of opposite two pot support bodies 774 are arranged along the second direction (the width direction of the pot support plate 76). The first direction is perpendicular to the second direction. The same is true for the four pot support bodies 774 corresponding to the second pot support 772 installed at the fourth hole 723. Thus, the two pot support bodies 774 arranged at intervals on the first hole 711 and the two pot support bodies 774 arranged at intervals on the fourth hole 723 extend along the same straight line (i.e., a straight line along the length direction of the pot support plate 76). Therefore, the two pot support bodies 774 located between the first hole 711 and the fourth hole 723 can be conveniently formed into a whole body, which can increase the strength of the two pot support bodies 774 and reduce the manufacturing steps. Similarly, among the two opposite pot support bodies 774 corresponding to the seventh hole 733 and arranged along the length direction of the pot support plate 76, the pot support body 774 located on the side close to the fourth hole 723 and the pot support body 774 corresponding to the fourth hole 723 and close to the seventh hole 733 are formed into a whole body. Since this part of the pot support body 774 is integrally formed as a whole, it is only connected to the pot support plate 76, and the rest of the pot support body 774 can extend to the panel reinforcement plate 75 after passing through the first hole group 761 (first mounting hole 7611), the second hole group 762 (second mounting hole 7621) and the third hole group 763 (third mounting hole 7631). It can be understood that the pot support body 774 can be connected to the pot support plate 76 in the first mounting hole 7611, the second mounting hole 7621 and the third mounting hole 7631 by snap-fitting, plugging or other detachable methods.

[0056] In order to facilitate the disassembly of the panel assembly 7, Figure 12 to Figure 14As shown, the first pot support 771, the second pot support 772 and the third pot support 773 also include pot support fixing members 775 corresponding to each pot support body 774, and the pot support fixing members 775 are fixedly connected to the panel reinforcement plate 75 as a whole by welding or other fixing methods. And the pot support fixing members 775 and the pot support body 774 have corresponding installation features, such as a snap structure, a hook, etc. When the pot support body 774 is connected to the pot support fixing members 775 through the installation features, the pot support body 774 can be connected to the panel reinforcement plate 75 through the pot support fixing members 775, so as to facilitate the disassembly of the panel assembly 7.

[0057] Furthermore, the first base 13 of the burner 1 is mounted on the bottom shell of the cooker. In order to facilitate the first ejection part 11 and the first gas mixing part 12 to be disposed between the panel reinforcement plate 75 and the pot support plate 76, the panel body 74 is further provided with a circular hole 741 for the first base 13 of the burner 1 to pass through, and the panel reinforcement plate 75 is provided with an escape part 751 corresponding to the circular hole 741. The upper part of the first base 13 can pass through the circular hole 741 to dispose the first ejection part 11 and the first gas mixing part 12 between the panel reinforcement plate 75 and the pot support plate 76. It is understood that the escape part 751 can be along Fig.12 The horizontal surface shown is an arc-shaped groove concave inwardly from the center line in the length direction of the panel reinforcement plate 75. Further, the panel body 74 is provided with a first sealing ring 742 at the periphery corresponding to the circular hole 741. The panel body 74 is provided with a second sealing ring 743 at the periphery.

[0058] With respect to the panel reinforcing plate 75 and the panel main body 74, the second burner 2 can be fixed to the panel main body 74 or the panel reinforcing plate 75 at the same time in addition to being fixed to the cooker housing 6. When the second burner 2 is fixed to the panel main body 74, a mounting hole for mounting the third fixing leg 26 of the second burner 2 can be provided on the panel main body 74. When the second burner 2 is fixed to the panel reinforcing plate 75, the diameter of the second hole 721 on the panel main body 74 is larger than the diameter of the third hole 722 of the panel reinforcing plate 75, so that the third fixing leg 26 can pass through the second hole 721 and abut against the periphery of the panel reinforcing plate 75 corresponding to the third hole 722. The panel reinforcing plate 75 is provided with fourth mounting holes 752 corresponding to the third fixing leg 26 at intervals on the periphery corresponding to the third hole 722.

[0059] In the embodiments of the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0060] In the description of the embodiments of the present invention, it needs to be understood that the directions or positional relationships indicated by the terms "upper" and "lower" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0061] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A burner, characterized in that: include: A first base (13), wherein two first channels (131) are formed on the first base (13), and a first nozzle (14) is disposed at the air outlet of each first channel (131); A first ejection part (11), the first ejection part (11) being connected to the first base (13) via a first rotating mechanism (3); and A first gas mixing portion (12), the first gas mixing portion (12) being arranged at the other end of the first ejection portion (11) and having a first opening (121) at the top thereof; When one end of the first ejection portion (11) faces one of the first nozzles (14), the first gas mixing portion (12) is set at a first position; when one end of the first ejection portion (11) faces another of the first nozzles (14), the first gas mixing portion (12) is set at a second position.

2. The burner according to claim 1, characterized in that The first rotating mechanism (3) comprises a driving part (31), a gear and a first shell (32); the driving part (31) is connected to the first base (13); the gear is coaxially arranged with an output shaft of the driving part (31); at least a portion of an inner wall of the first shell (32) is provided with a rack (321) meshing with the gear; and the first ejection part (11) is connected to the first shell (32).

3. The burner according to claim 2, characterized in that: The first shell (32) extends along its axial direction to between the air inlet of the first ejection part (11) and the first nozzle (14), and an air inlet hole (322) is provided corresponding to the air inlet of the first ejection part (11), and the area of ​​the air inlet hole (322) is larger than the area of ​​the air inlet of the first ejection part (11).

4. The burner according to claim 3, characterized in that The first nozzle (14) extends out of the outer periphery of the first base (13), and there is a gap (4) between the inner side wall of the first shell (32) and the first base (13), and the gap (4) is configured to avoid the first nozzle (14) when the first shell (32) rotates.

5. The burner according to claim 2, characterized in that: The first shell (32) is provided with a first connecting ear (323) extending outward, and the first connecting ear (323) is provided with a first pin hole (3231) extending along the tangent direction of the first base (13); the first ejection part (11) is provided with a connecting piece (111), and the connecting piece (111) is provided with a second pin hole (1111); a first pin shaft is passed through the first pin hole (3231) and the second pin hole (1111) to rotatably connect the first ejection part (11) to the first shell (32).

6. The burner according to claim 5, characterized in that The connecting member (111) comprises a first connecting plate (1112) in a "U" shape and a second connecting plate (1113) connected to the first ejection portion (11), the two ends of the first connecting plate (1112) are respectively arranged on both sides of the first connecting ear (323) and are respectively provided with the second pin holes (1111), and the middle part of the first connecting plate (1112) is connected to the second connecting plate (1113).

7. The burner according to any one of claims 1 to 6, characterized in that The cross section of the first gas mixing portion (12) in the rotation plane is comma-shaped.

8. The burner according to any one of claims 1 to 6, characterized in that The burner (1) further comprises a first fire cover (15) having a first fire hole (151) at the top and a first ignition needle (16) connected to the outside of the first gas mixing section (12); the shape of the first fire cover (15) corresponds to the shape of the first gas mixing section (12) and is arranged to cover the first opening (121); a first fire transfer hole (152) is arranged on the side wall of the first fire cover (15); and a needle head portion of the first ignition needle (16) corresponds to the first fire transfer hole (152).

9. The burner according to any one of claims 1 to 6, characterized in that: Each of the first channels (131) comprises at least a first section (1311), a second section (1312) and a third section (1313) which are connected in sequence, wherein the first section (1311) extends inwardly from the outer periphery of the first base (13) to a position close to the center of the first base (13), the second section (1312) extends along the axial direction of the first base (13), and the third section (1313) extends outwardly from a position close to the center of the first base (13) to the outer periphery of the first base (13), and the first nozzle (14) is arranged at the air outlet of the third section (1313).

10. A cooking appliance, characterized in that: include: A burner as claimed in any one of claims 1 to 9; as well as A second burner (2), the second burner (2) comprising a second gas mixing portion (21) having a second opening (211) at the top, the first gas mixing portion (12) being adapted to the second gas mixing portion (21) so that the flames of the first opening (121) and the second opening (211) are in a complete first shape.

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