Burner and gas stove

Abstract

The utility model relates to the technical field of kitchen appliances, and specifically discloses a burner and a gas stove, wherein the burner further comprises a first connecting assembly and / or a second connecting assembly, wherein an inner fire cover and an outer fire cover are both covered above a gas distribution plate, and an inner ring gas distribution channel is formed between the gas distribution plate and the inner fire cover, and an outer ring gas distribution channel is formed between the gas distribution plate and the outer fire cover, the inner fire cover is provided with a plurality of inner ring fire holes connected to the inner ring gas distribution channel, and the outer fire cover is provided with a plurality of outer ring fire holes connected to the outer ring gas distribution channel, and the first connecting assembly fixes the inner fire cover and the gas distribution plate together; and the second connecting assembly fixes the outer fire cover and the gas distribution plate together. By fixing the inner fire cover and the gas distribution plate together by the first connecting assembly, and fixing the outer fire cover and the gas distribution plate together by the second connecting assembly, the number of parts of the burner can be effectively reduced, and it is convenient to take, place and assemble.

Description

Technical Field

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

[0002] A gas stove refers to a kitchen appliance that uses gas fuels such as liquefied petroleum gas, artificial coal gas, and natural gas for direct fire heating. The burner and the stove head are important components of the gas stove. Among them, the burner usually includes an outer fire cover, an inner fire cover, and a gas distribution plate. The outer fire cover is arranged above the gas distribution plate, and an outer ring gas distribution channel is formed between the gas distribution plate and the outer fire cover. The outer fire cover is provided with an outer ring fire hole connected to the outer ring gas distribution channel; the inner fire cover is arranged above the gas distribution plate, and an inner ring gas distribution channel is formed between the gas distribution plate and the inner fire cover. The inner fire cover is provided with an inner ring fire hole connected to the inner ring gas distribution channel. Both the inner ring gas distribution channel and the outer ring gas distribution channel can be connected to the gas channel of the stove head. The inner ring fire hole and the outer ring fire hole ensure that the food is heated evenly during the cooking process.

[0003] The inner fire cover and the outer fire cover of the existing burner are usually detachably matched with the gas distribution plate, which makes it easy to remove the inner fire cover or the outer fire cover for cleaning when stains adhere to the inner ring fire hole or the outer ring fire hole, but this will also result in a large number of parts for the burner, which is not convenient for taking and placing and assembling; at the same time, the inner fire cover and the outer fire cover need to rely on their own gravity to ensure the sealing fit between the two and the gas distribution plate, which requires both to have a large dead weight and also wastes raw materials; in addition, the ignition and flameout protection functions of the gas stove are usually implemented at the inner fire cover. When the user installs the inner fire cover, it is difficult to ensure that the inner fire cover is installed in place, which can easily cause ignition failure, unsuccessful fire protection, flashback, etc., and the risk is relatively high.

[0004] Therefore, there is an urgent need for a burner and a gas stove to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a burner and a gas stove, so as to reduce the number of parts of the burner and facilitate taking, placing and assembling.

[0006] On the one hand, the utility model provides a burner, which includes an outer fire cover, an inner fire cover and an air distribution plate, the inner fire cover and the outer fire cover are both covered on the top of the air distribution plate, and an inner ring air distribution channel is formed between the air distribution plate and the inner fire cover, and an outer ring air distribution channel is formed between the air distribution plate and the outer fire cover, the inner fire cover is provided with a plurality of inner ring fire holes connected to the inner ring air distribution channel, and the outer fire cover is provided with a plurality of outer ring fire holes connected to the outer ring air distribution channel; the burner also includes a first connecting component, which fixes the inner fire cover and the air distribution plate; and / or the burner also includes a second connecting component, which fixes the outer fire cover and the air distribution plate.

[0007] As a preferred technical solution for the burner, the first connecting component includes a first through hole, a first threaded hole and a first connecting piece, the first through hole is arranged at one of the gas distribution plate and the inner fire cover, the first threaded hole is arranged at the other of the gas distribution plate and the inner fire cover, and the first connecting piece passes through the first through hole and is threadedly connected to the first threaded hole to fix the inner fire cover and the gas distribution plate.

[0008] As a preferred technical solution of the burner, the gas distribution plate includes:

[0009] A gas distribution plate body, the outer fire cover and the inner fire cover are both covered on the gas distribution plate body, an inner ring gas distribution channel is formed between the gas distribution plate body and the inner fire cover, and an outer ring gas distribution channel is formed between the gas distribution plate body and the outer fire cover;

[0010] A support rod, a gap is provided in the inner ring gas distribution channel, and one of the first through hole and the first threaded hole is provided in the support rod;

[0011] A connecting piece is connected between the gas distribution plate body and the support rod.

[0012] As a preferred technical solution of the burner, the inner ring gas distribution channel includes a first inner ring gas channel arranged on the gas distribution plate body, and a second inner ring gas channel arranged on the inner fire cover, the output port of the first inner ring gas channel is connected with the second inner ring gas channel, and the second inner ring gas channel is connected with a plurality of the inner ring fire holes;

[0013] The connecting member includes a connecting portion and an extending portion, wherein the connecting portion is protruding from the side wall of the first inner ring air channel, the first end of the extending portion is connected to the connecting portion at an angle, the second end of the extending portion extends out of the output port and is connected to the support rod, and the support rod is located in the second inner ring air channel.

[0014] As a preferred technical solution of the burner, the length of the extension portion extends along the direction in which the first inner ring airway conveys gas, and the width and / or thickness of the extension portion gradually narrows along the direction in which the first inner ring airway conveys gas.

[0015] As a preferred technical solution for the burner, one of the inner fire cover and the gas distribution plate is provided with a limiting slot, and the other of the inner fire cover and the gas distribution plate is provided with a limiting plug block, and the limiting slot and the limiting plug block are plug-fitted.

[0016] As a preferred technical solution for the burner, the second connecting component includes a second through hole, a second threaded hole and a second connecting member, the second through hole is arranged at one of the gas distribution plate and the inner fire cover, the second threaded hole is arranged at the other of the gas distribution plate and the inner fire cover, and the second connecting member passes through the second through hole and is threadedly connected to the second threaded hole to fix the inner fire cover and the gas distribution plate.

[0017] As a preferred technical solution for the burner, a plurality of inner ring fire holes are distributed on the outer peripheral surface of the inner fire cover, and a first annular shielding eave is protrudingly provided on the top of the outer peripheral surface of the inner fire cover.

[0018] As a preferred technical solution of the burner, the burner further includes an electrode needle, a second shielding eave is protrudingly provided on the outer peripheral surface of the first shielding eave, and the electrode needle is arranged directly below the second shielding eave.

[0019] The burner provided by the utility model has at least the following beneficial effects:

[0020] The burner includes an outer fire cover, an inner fire cover and an air distribution plate, and the burner also includes a first connecting component and / or a second connecting component. The inner fire cover and the outer fire cover are both covered on the top of the air distribution plate, and an inner ring air distribution channel is formed between the air distribution plate and the inner fire cover, and an outer ring air distribution channel is formed between the air distribution plate and the outer fire cover. The inner fire cover is provided with a plurality of inner ring fire holes connected to the inner ring air distribution channel, and the outer fire cover is provided with a plurality of outer ring fire holes connected to the outer ring air distribution channel. The first connecting component fixes the inner fire cover and the air distribution plate together; the second connecting component fixes the outer fire cover and the air distribution plate together. The inner fire cover and the air distribution plate are fixed together by the first connecting component, and the outer fire cover and the air distribution plate are fixed together by the second connecting component, which can effectively reduce the number of parts of the burner and facilitate placement and assembly.

[0021] On the other hand, the utility model provides a gas stove, comprising a burner in any of the above-mentioned schemes, and the gas stove also includes a burner head connected to the gas distribution plate, the burner head having a main gas channel and a secondary gas channel, the secondary gas channel is connected to the inner ring gas distribution channel, and the main gas channel is connected to the outer ring gas distribution channel.

[0022] The gas stove provided by the utility model has at least the following beneficial effects:

[0023] The gas stove comprises a burner head and the burner. The burner has a small number of parts and can be taken out and assembled on the burner head. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a gas stove in an embodiment of the utility model;

[0025] Figure 2This is a schematic diagram of the structure of the burner and the burner head in the embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the burner in the embodiment of the utility model;

[0027] Figure 4 A cross-sectional view of a burner in an embodiment of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the gas distribution plate in the embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the inner fire cover in the embodiment of the utility model;

[0030] Figure 7 It is a schematic diagram of the structure of the inner and outer fire covers in an embodiment of the present utility model.

[0031] In the figure:

[0032] 10. Burner; 20. Burner head; 30. Panel; 40. Pot holder; 50. Knob;

[0033] 1. External fire cover; 11. External fire hole;

[0034] 2. Inner fire cover; 21. Inner ring fire hole; 22. Boss; 23. Limiting slot; 24. First shielding eaves; 25. Second shielding eaves;

[0035] 3. Gas distribution plate; 31. Gas distribution plate body; 32. Support rod; 33. Connecting piece; 331. Connecting part; 332. Extending part; 34. Limiting plug;

[0036] 41, inner ring air distribution channel; 411, first inner ring air channel; 412, output port; 413, second inner ring air channel; 42, outer ring air distribution channel;

[0037] 51. a first through hole; 52. a first threaded hole;

[0038] 61. second through hole; 62. second threaded hole;

[0039] 7. Electrode needle;

[0040] 8. Thermocouple. DETAILED DESCRIPTION

[0041] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0045] Please refer to Figures 1 to 4The present embodiment provides a gas stove, which includes a burner 10 and a burner head 20, wherein the burner 10 is connected to the burner head 20, the burner head 20 is used to connect the gas pipeline, and the burner head 20 has a main gas channel and a secondary gas channel. The burner 10 includes an outer fire cover 1, an inner fire cover 2 and a gas distribution plate 3, the inner fire cover 2 and the outer fire cover 1 are both covered on the gas distribution plate 3, and an inner ring gas distribution channel 41 is formed between the gas distribution plate 3 and the inner fire cover 2, and an outer ring gas distribution channel 42 is formed between the gas distribution plate 3 and the outer fire cover 1, the inner fire cover 2 is provided with a plurality of inner ring fire holes 21 connected to the inner ring gas distribution channel 41, and the outer fire cover 1 is provided with a plurality of outer ring fire holes 11 connected to the outer ring gas distribution channel 42; the secondary gas channel is connected to the inner ring gas distribution channel 41, and the main gas channel is connected to the outer ring gas distribution channel 42. In the gas stove provided in this embodiment, the gas provided by the main gas channel of the burner head 20 passes through the outer ring gas distribution channel 42 and the outer ring fire hole 11 on the outer fire cover 1 to reach the outside and participate in the combustion reaction to form an outer ring flame; the gas provided by the auxiliary gas channel of the burner head 20 passes through the inner ring gas distribution channel 41 and the inner ring fire hole 21 on the inner fire cover 2 to reach the outside and participate in the combustion reaction to form an inner ring flame. The outer ring flame and the inner ring flame are used to heat cooking utensils (such as woks, steamers, etc.) at the same time, which can ensure that the cooking utensils are heated evenly, thereby ensuring the cooking effect. Among them, the structure of the burner head 20 is a prior art and will not be repeated here.

[0046] In this embodiment, a plurality of inner ring fire holes 21 are arranged on the outer circumference of the inner fire cover 2 and are arranged in an array. Most of the outer ring fire holes 11 are arranged on the outer circumference of the outer fire cover 1 and are arranged in an array; another small portion is arranged on the top surface of the outer ring fire holes 11 and is also arranged in an array, which can be used to form a middle ring flame, so that three layers of inner, middle and outer flames can be formed, which can further ensure the cooking effect.

[0047] In addition, the gas stove also includes a panel 30, a knob 50 and a pot rack 40 arranged on the panel 30, the burner 20 is fixed to the panel 30, the pot rack 40 surrounds the outer circumference of the burner 10 and is used to support the cooking utensils, the knob 50 is rotatably arranged on the panel 30, and the knob 50 is used to control the ignition or shutdown of the burner 10.

[0048] Preferably, the gas stove includes two burners 20, two burners 10, two pot racks 40 and a knob 50. The two burners 10 are connected to the two burners 20 one by one. The two burners 20 are fixed to the panel 30 at intervals. The two pot racks 40 are arranged on the outer periphery of the two burners 10 one by one. The two knobs 50 are respectively used to control the ignition and shutoff of the two burners 10. In this way, two dishes can be cooked at the same time by two burners 10. Of course, in other embodiments, the number of burners 20, burners 10 and pot racks 40 can also be set as needed.

[0049] The inner fire cover and outer fire cover of the existing burner are usually detachably matched with the gas distribution plate, which makes it easy to remove the inner fire cover or the outer fire cover for cleaning when stains adhere to the inner ring fire hole or the outer ring fire hole. However, this also leads to a large number of parts of the burner, which is not convenient for taking, placing and assembling.

[0050] In this regard, the burner 10 provided in this embodiment also includes a first connecting component and / or a second connecting component; wherein the first connecting component fixes the inner fire cover 2 and the gas distribution plate 3, and the second connecting component fixes the outer fire cover 1 and the gas distribution plate 3. In this way, the inner fire cover 2 and the gas distribution plate 3 can be fixed together by the first connecting component, and the outer fire cover 1 and the gas distribution plate 3 can be fixed together by the second connecting component, which can effectively reduce the number of parts and facilitate placement and assembly. Specifically, in this embodiment, an exemplary solution is given in which the burner 10 is provided with a first connecting component and a second connecting component at the same time. In other embodiments, only the first connecting component or only the second connecting component can be provided as required.

[0051] The inner fire cover of the existing burner needs to rely on its own gravity to ensure the sealing fit between the inner fire cover and the gas distribution plate, which requires the inner fire cover to have a large dead weight and also wastes raw materials.

[0052] For this, please refer to Figures 4 to 6 In this embodiment, the first connecting component includes a first through hole 51, a first threaded hole 52 and a first connecting member. The first through hole 51 is provided in one of the gas distribution plate 3 and the inner fire cover 2, and the first threaded hole 52 is provided in the other of the gas distribution plate 3 and the inner fire cover 2. The first connecting member passes through the first through hole 51 and is threadedly connected to the first threaded hole 52 to fix the inner fire cover 2 and the gas distribution plate 3. Among them, the first connecting member can be a bolt or a screw. The inner fire cover 2 and the gas distribution plate 3 can be stably fixed together by the first connecting member, thereby ensuring the sealing effect between the inner fire cover 2 and the outer fire cover 1. Compared with the prior art, the weight of the inner fire cover 2 can be effectively reduced, thereby saving raw materials. Specifically, in this embodiment, an exemplary scheme of providing the first through hole 51 in the gas distribution plate 3 and providing the first threaded hole 52 in the inner fire cover 2 is given. In other embodiments, the first threaded hole 52 can also be provided in the gas distribution plate 3, and the first through hole 51 can be provided in the inner fire cover 2.

[0053] The inner fire cover 2 is provided with a boss 22 , and the first threaded hole 52 is provided on the boss 22 .

[0054] As an alternative solution, the first connecting component includes a first pin, a first pin hole arranged in the gas distribution plate 3, and a second pin hole arranged in the inner fire cover 2. The first pin is respectively interference fit with the first pin hole and the second pin hole, so that the inner fire cover 2 and the gas distribution plate 3 can also be stably fixed together.

[0055] Optionally, see Figure 4 and Figure 5 , the gas distribution plate 3 includes a gas distribution plate body 31, a support rod 32 and a connecting piece 33. Among them, the outer fire cover 1 and the inner fire cover 2 are both covered on the gas distribution plate body 31, and an inner ring gas distribution channel 41 is formed between the gas distribution plate body 31 and the inner fire cover 2, and an outer ring gas distribution channel 42 is formed between the gas distribution plate body 31 and the outer fire cover 1; the support rod 32 gap is set in the inner ring gas distribution channel 41, and the first through hole 51 is set in the support rod 32; the connecting piece 33 is connected between the gas distribution plate body 31 and the support rod 32. Such a setting makes the support rod 32 suspended in the outer ring gas distribution channel 42, which will not affect the circulation of fuel, and the gas distribution plate body 31 supports the support rod 32, which can ensure the stability of the support rod 32.

[0056] For details, please refer to Figure 4 In this embodiment, the inner ring gas distribution channel 41 includes a first inner ring gas channel 411 disposed on the gas distribution plate body 31, and a second inner ring gas channel 413 disposed on the inner fire cover 2. The output port 412 of the first inner ring gas channel 411 is connected to the second inner ring gas channel 413, and the second inner ring gas channel 413 is connected to a plurality of inner ring fire holes 21. The fuel can be sequentially output to the outside through the first inner ring gas channel 411 and the second inner ring gas channel 413 and the inner ring fire holes 21 to participate in the combustion reaction. The connecting member 33 includes a connecting portion 331 and an extending portion 332. The connecting portion 331 is protruding from the side wall of the first inner ring gas channel 411. The first end of the extending portion 332 is connected to the connecting portion 331 at an angle. The second end of the extending portion 332 extends out of the output port 412 and is connected to the support rod 32. The support rod 32 is located in the second inner ring gas channel 413. In this way, the support rod 32 is arranged outside the output port 412 and away from the output port 412 by a certain distance, which can effectively reduce the obstruction effect of the support rod 32 on the airflow in the inner ring gas distribution channel 41, thereby reducing the effect on the fuel supply of the inner ring flame. Among them, the distance between the support rod 32 and the output port 412 can be set according to actual needs.

[0057] In other embodiments, the support rod 32 may also be located in the first inner ring air channel 411 , and both ends of the support rod 32 may be directly connected to the side walls of the first inner ring air channel 411 .

[0058] Preferably, please refer to Figure 4 and Figure 5 , two connecting members 33 are provided, the two connecting members 33 are arranged opposite to each other, and the extension parts 332 of the two connecting members 33 are respectively connected to the two ends of the support rod 32, and the connecting parts 331 of the two connecting members 33 are connected to the side wall of the first inner ring air channel 411. In this way, the support rod 32 can be supported by the two connecting members 33 to ensure that the support rod 32 has high stability. Of course, in other embodiments, the number of connecting members 33 can also be set to one or more than two according to actual needs.

[0059] Optionally, see Figure 5 , the length of the extension portion 332 extends along the direction of gas delivery of the first inner ring gas channel 411, and the width and / or thickness of the extension portion 332 gradually narrows along the direction of gas delivery of the first inner ring gas channel 411. In this way, by making the width and / or thickness of the extension portion 332 gradually narrow along the direction of gas delivery of the first inner ring gas channel 411, the flow resistance effect of the connecting member 33 on the gas flow in the inner ring gas distribution channel 41 can be reduced, and the fuel supply to the inner ring flame can be further ensured to be unaffected. Among them, only the width of the extension portion 332 can be gradually narrowed along the direction of gas delivery of the first inner ring gas channel 411; only the thickness of the extension portion 332 can be gradually narrowed along the direction of gas delivery of the first inner ring gas channel 411; and the width of the extension portion 332 can be gradually narrowed along the direction of gas delivery of the first inner ring gas channel 411, and the thickness of the extension portion 332 can be gradually narrowed along the direction of gas delivery of the first inner ring gas channel 411.

[0060] The manner in which the width and / or thickness of the extension portion 332 gradually narrows along the direction in which the first inner ring air channel 411 conveys gas can be set according to actual needs. Taking the example of the width of the extension portion 332 gradually narrowing along the direction in which the first inner ring air channel 411 conveys gas, along the direction in which the first inner ring air channel 411 conveys gas, the side wall on one side of the extension portion 332 in the width direction can gradually move closer to the side wall on the other side of the extension portion 332 in the width direction; or along the direction in which the first inner ring air channel 411 conveys gas, the side walls on both sides of the extension portion 332 in the width direction can simultaneously move closer to the middle.

[0061] Optionally, the burner 10 also includes an electrode needle 7 and a thermocouple 8. The electrode needle 7 cooperates with one of the inner ring fire holes 21 of the inner fire cover 2 for ignition operation; the thermocouple 8 cooperates with another inner ring fire hole 21 of the inner fire cover 2 for collecting temperature.

[0062] The ignition and flameout protection functions of existing gas stoves are usually implemented at the inner fire cover. Since the inner fire cover and the gas distribution plate are detachably matched, it is difficult for users to ensure that the inner fire cover is installed in place after maintenance. In addition, the inner fire cover is easily touched by mistake and causes the position of the inner fire cover to change. The positions of the electrode needle and the thermocouple are fixed, which will cause the positions of the inner fire holes corresponding to the electrode needle and the inner fire holes corresponding to the thermocouple to change, which will cause ignition failure, unsuccessful fire protection, flashback, etc., which is a high risk.

[0063] For this, please refer to Figure 5 and Figure 6In this embodiment, one of the inner fire cover 2 and the gas distribution plate 3 is provided with a limiting slot 23, and the other of the inner fire cover 2 and the gas distribution plate 3 is provided with a limiting plug block 34, and the limiting slot 23 and the limiting plug block 34 are plug-fitted. With such arrangement, on the one hand, when the limit plug 34 and the limit slot 23 cooperate, the inner ring fire hole 21 in the inner fire cover 2 for cooperating with the electrode needle 7 can be relative to the electrode needle 7 and maintain a stable position, and the inner ring fire hole 21 in the inner fire cover 2 for cooperating with the thermocouple 8 can be relative to the thermocouple 8 and maintain a stable position, which can effectively avoid ignition failure, unsuccessful fire protection, flashback and the like; on the other hand, through the plug-in cooperation of the limit slot 23 and the limit plug 34, it can be ensured that the relative position of the inner fire cover 2 and the gas distributor 3 can be kept stable during the process of being fixed together by the first connecting component, and even if the inner fire cover 2 is accidentally touched, the position can be kept stable; on the other hand, only when the limit plug 34 and the limit slot 23 cooperate, the inner fire cover 2 can be matched with the gas distributor 3, and at this time, the inner fire cover 2 and the gas distributor 3 can be fixed by the first connecting component, which can play a fool-proof role. Among them, this embodiment exemplifies a solution of setting a limit slot 23 in the inner fire cover 2 and protruding a limit plug 34 on the side wall of the first inner ring air duct 411 of the air distribution plate 3; in other embodiments, it is also possible to choose to set a limit plug 34 in the inner fire cover 2 and set a limit slot 23 in the air distribution plate 3 according to actual needs.

[0064] Preferably, the limiting slot 23 and the limiting insert block 34 are plugged together along the direction in which the first inner ring air channel 411 conveys gas.

[0065] Further preferably, the limiting plug 34 is connected between the side wall of the first inner ring air channel 411 and one of the extensions 332 , so that the structural strength of the extension 332 can be strengthened by the limiting plug 34 and the supporting stability of the support rod 32 can be further enhanced.

[0066] Optionally, see Figure 4 and Figure 6 The top of the outer peripheral surface of the inner fire cover 2 is also provided with a first annular shielding eave 24. The first shielding eave 24 can shield the inner ring fire holes 21 distributed on the outer peripheral surface of the inner fire cover 2 in the vertical direction to prevent stains from adhering to the inner ring fire holes 21, thereby avoiding cleaning operations.

[0067] Optionally, see Figure 6 The outer peripheral surface of the first shielding eaves 24 is also convexly provided with a second shielding eaves 25, and the electrode needle 7 is arranged directly below the second shielding eaves 25. In this way, the electrode needle 7 can be shielded in the vertical direction by the second shielding eaves 25 to prevent stains from adhering to the electrode needle 7, thereby ensuring a stable ignition effect.

[0068] The inner fire cover of the existing burner needs to rely on its own gravity to ensure the sealing fit between the inner fire cover and the gas distribution plate, which requires the inner fire cover to have a large dead weight and also wastes raw materials.

[0069] For this, please refer to Figure 5 and Figure 7 In this embodiment, the second connecting component includes a second through hole 61, a second threaded hole 62 and a second connecting member. The second through hole 61 is provided in one of the gas distribution plate 3 and the inner fire cover 2, and the second threaded hole 62 is provided in the other of the gas distribution plate 3 and the inner fire cover 2. The second connecting member passes through the second through hole 61 and is threadedly connected to the second threaded hole 62 to fix the inner fire cover 2 and the gas distribution plate 3. Among them, the second connecting member can be a bolt or a screw. The outer fire cover 1 and the gas distribution plate 3 can be stably fixed together by the second connecting member, thereby ensuring the sealing effect between the outer fire cover 1 and the outer fire cover 1. Compared with the prior art, the weight of the outer fire cover 1 can be effectively reduced, thereby saving raw materials. Specifically, in this embodiment, a scheme of setting a second through hole 61 in the gas distribution plate 3 and setting a second threaded hole 62 in the outer fire cover 1 is exemplarily given. In other embodiments, the second threaded hole 62 can also be provided in the gas distribution plate 3 and the second through hole 61 can be provided in the outer fire cover 1 according to actual needs.

[0070] Preferably, there are multiple second connecting components, and the multiple second connecting components are evenly distributed along the circumferential direction of the gas distribution plate 3. In this way, multiple second connecting components can be used to ensure uniform force between the gas distribution plate 3 and the outer fire cover 1, thereby ensuring a stable sealing effect on the outer ring gas distribution channel 42.

[0071] As an alternative solution, the second connecting component includes a second pin, which is arranged in the third pin hole of the gas distribution plate 3 and the fourth pin hole of the outer fire cover 1. The second pin is respectively inserted into the third pin hole and the fourth pin hole through interference fit, so that the outer fire cover 1 and the gas distribution plate 3 can also be stably fixed together.

[0072] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A burner, comprising an outer fire cover (1), an inner fire cover (2) and an air distribution plate (3), wherein the inner fire cover (2) and the outer fire cover (1) are both arranged on top of the air distribution plate (3), and an inner ring air distribution channel (41) is formed between the air distribution plate (3) and the inner fire cover (2), and an outer ring air distribution channel (42) is formed between the air distribution plate (3) and the outer fire cover (1), the inner fire cover (2) is provided with a plurality of inner ring fire holes (21) connected to the inner ring air distribution channel (41), and the outer fire cover (1) is provided with a plurality of outer ring fire holes (11) connected to the outer ring air distribution channel (42); characterized in that: The burner further comprises a first connecting assembly, which fixes the inner fire cover (2) and the gas distribution plate (3) in connection; and / or the burner further comprises a second connecting assembly, which fixes the outer fire cover (1) and the gas distribution plate (3) in connection.

2. The burner according to claim 1, characterized in that The first connecting component comprises a first through hole (51), a first threaded hole (52) and a first connecting member, wherein the first through hole (51) is arranged at one of the gas distribution plate (3) and the inner fire cover (2), and the first threaded hole (52) is arranged at the other of the gas distribution plate (3) and the inner fire cover (2), and the first connecting member passes through the first through hole (51) and is threadedly connected to the first threaded hole (52) to fix the inner fire cover (2) and the gas distribution plate (3).

3. The burner according to claim 2, characterized in that The gas distribution plate (3) comprises: A gas distribution plate body (31), the outer fire cover (1) and the inner fire cover (2) are both covered on the gas distribution plate body (31), an inner ring gas distribution channel (41) is formed between the gas distribution plate body (31) and the inner fire cover (2), and an outer ring gas distribution channel (42) is formed between the gas distribution plate body (31) and the outer fire cover (1); A support rod (32), a gap is provided in the inner ring gas distribution channel (41), and one of the first through hole (51) and the first threaded hole (52) is provided on the support rod (32); A connecting member (33) is connected between the gas distribution plate body (31) and the support rod (32).

4. The burner according to claim 3, characterized in that The inner ring air distribution channel (41) comprises a first inner ring air channel (411) arranged on the air distribution plate body (31), and a second inner ring air channel (413) arranged on the inner fire cover (2), the output port (412) of the first inner ring air channel (411) is in communication with the second inner ring air channel (413), and the second inner ring air channel (413) is in communication with a plurality of the inner ring fire holes (21); The connecting member (33) comprises a connecting portion (331) and an extending portion (332); the connecting portion (331) is protruding from the side wall of the first inner ring air channel (411); a first end of the extending portion (332) is connected to the connecting portion (331) at an angle; a second end of the extending portion (332) extends out of the output port (412) and is connected to the support rod (32); and the support rod (32) is located in the second inner ring air channel (413).

5. The burner according to claim 4, characterized in that The length of the extension portion (332) extends along the direction in which the first inner ring air channel (411) conveys gas, and the width and / or thickness of the extension portion (332) gradually narrows along the direction in which the first inner ring air channel (411) conveys gas.

6. The burner according to claim 2, characterized in that One of the inner fire cover (2) and the gas distribution plate (3) is provided with a limit slot (23), and the other of the inner fire cover (2) and the gas distribution plate (3) is provided with a limit plug block (34), and the limit slot (23) and the limit plug block (34) are plug-fitted.

7. The burner according to claim 1, characterized in that The second connecting component comprises a second through hole (61), a second threaded hole (62) and a second connecting member, wherein the second through hole (61) is arranged at one of the gas distribution plate (3) and the inner fire cover (2), and the second threaded hole (62) is arranged at the other of the gas distribution plate (3) and the inner fire cover (2), and the second connecting member passes through the second through hole (61) and is threadedly connected to the second threaded hole (62) to fix the inner fire cover (2) and the gas distribution plate (3).

8. The burner according to any one of claims 1 to 7, characterized in that: A plurality of inner ring fire holes (21) are distributed on the outer peripheral surface of the inner fire cover (2), and a first annular shielding eave (24) is protrudingly provided on the top of the outer peripheral surface of the inner fire cover (2).

9. The burner according to claim 8, characterized in that The burner further comprises an electrode needle (7), a second shielding eave (25) is protrudingly provided on the outer peripheral surface of the first shielding eave (24), and the electrode needle (7) is arranged directly below the second shielding eave (25).

10. A gas stove, characterized in that: The gas stove comprises the burner according to any one of claims 1 to 9, and the gas stove also comprises a burner head (20) connected to the gas distribution plate (3), the burner head (20) having a main gas channel and a secondary gas channel, the secondary gas channel being connected to the inner ring gas distribution channel (41), and the main gas channel being connected to the outer ring gas distribution channel (42).

Images