Combustor and gas stove

Abstract

The utility model belongs to the technical field of kitchen utensils, and particularly discloses a burner and a gas stove. The combustor comprises a furnace end, a central fire cover mounting structure, an outer ring fire cover and a central fire cover. The burner is provided with an inner ring injection channel and an outer ring injection channel. The central fire cover is arranged on the furnace end, and the central fire cover is communicated with the inner ring injection channel; the outer ring fire cover is arranged on the burner and located on the outer ring of the center fire cover. The outer ring fire cover communicates with the outer ring injection channel. The center fire cover installation structure comprises an elastic piece, the center fire cover is installed on the furnace end through the elastic piece, the elastic piece provides upward supporting force for the center fire cover all the time, and the center fire cover is higher than the outer ring fire cover when not subjected to external force. The burner provided by the utility model is suitable for cooking utensils with different bottom surface shapes.

Description

Technical Field

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

[0002] A gas stove is a kitchen appliance that uses liquefied petroleum gas (LPG), manufactured gas, natural gas, or other gaseous fuels for direct-fire heating. Gas stoves are popular among users due to their ease of use, rapid heating, and low cost.

[0003] A gas stove burner consists of a central burner cap on the inner ring and an outer burner cap on the outer ring. Burning at the central burner cap creates the central flame, while burning at the outer burner cap creates the outer flame. When high heat is needed for cooking, both the central and outer burner caps burn simultaneously; when keeping food warm, only the central burner cap needs to burn to create the central flame. During cooking, the cookware is typically supported by a pot rack. Therefore, the burner design ensures that the height of the central burner cap is aligned with the height of the pot rack to prevent the central burner cap from interfering with the placement of the cookware.

[0004] However, the burners described above can meet the needs of using frying pans. But when users want to use round-bottomed pans with a wider heating surface, the lowest point of the round-bottomed pan will interfere with the center burner cap after it is placed on the pan rack, causing the round-bottomed pan to be unable to be placed stably, which causes inconvenience to the user. Utility Model Content

[0005] One of the technical problems solved by this utility model is to provide a burner that can effectively solve the technical problem that the burners of gas stoves in the prior art cannot meet the needs of users using round-bottomed pots.

[0006] The second technical problem solved by this utility model is to provide a gas stove that can effectively solve the technical problem in the prior art that the burner of the gas stove cannot meet the user's needs for using a round-bottomed pot.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] The burner includes:

[0009] The burner head is equipped with an inner ring ejector channel and an outer ring ejector channel;

[0010] A central burner cap is disposed on the furnace head, and the central burner cap is connected to the inner ring ejector channel;

[0011] An outer ring flame cap is disposed on the furnace head and located on the outer ring of the central flame cap, and the outer ring flame cap is connected to the outer ring ejector channel;

[0012] The center burner cap mounting structure includes an elastic element, which is mounted on the furnace head. The elastic element always provides an upward supporting force to the center burner cap, and when the center burner cap is not subjected to external force, it is higher than the outer ring burner cap.

[0013] The burner described in this utility model has the following advantages compared with the prior art:

[0014] This burner, when used on gas stoves, can adapt to cookware with different bottom shapes. When the cookware is flat-bottomed, it is placed on the pot rack. The bottom of the flat-bottomed cookware will not press down on the center burner cap. Moreover, because the elastic element always provides upward support to the center burner cap, it is set higher than the outer ring burner cap, so that the center burner cap is as close as possible to the bottom of the flat-bottomed cookware. When the center burner cap is flush with the pot rack, it can be placed against the pot, so that the center flame, which has a smaller heat output, is also as close as possible to the bottom of the flat-bottomed cookware, ensuring the thermal efficiency of the center flame. When the cookware is a round-bottomed cookware, it is placed on a pot rack. Because the bottom of the round-bottomed cookware has a concave, arc-shaped structure, the bottom surface of the cookware presses down on the center burner cap. Under this downward pressure, the center burner cap presses down on the elastic element and moves downward, thus preventing the center burner cap from interfering with the bottom surface of the cookware and ensuring its normal use. Furthermore, the center burner cap remains in close contact with the bottom surface of the cookware, maximizing the heating efficiency of the flame at the center burner cap on the bottom of the pot. When the cookware is removed, the center burner cap moves upward and returns to its original position under the elastic restoring force of the elastic element.

[0015] In one embodiment, the central burner mounting structure further includes an inner sleeve and an outer sleeve. The lower end of the inner sleeve is installed on the burner head and communicates with the inner ring ejector channel. The outer sleeve is slidably fitted onto the upper end of the inner sleeve along its own axial direction. The elastic element is fitted onto the outer periphery of the inner sleeve and is always elastically located between the lower ends of the burner head and the outer sleeve. Both the inner sleeve and the outer sleeve are hollow structures with openings at both ends.

[0016] The central flame cap is located at the upper end of the outer sleeve.

[0017] In one embodiment, the burner further includes an outer tube travel limiting structure, the outer tube travel limiting structure comprising:

[0018] A pressure plate is fixedly installed on the furnace head, and the pressure plate has a through hole for the outer sleeve to slide through;

[0019] An outwardly flared flange is provided at the lower end of the outer sleeve. The outwardly flared flange can move with the outer sleeve to abut against the pressure plate to limit the maximum extension stroke of the outer sleeve.

[0020] In one embodiment, the outwardly flared flange is elastically connected to the upper end of the elastic member.

[0021] In one embodiment, a limiting ring is provided on the burner head, and the limiting ring surrounds an elastic element mounting cavity. The lower end of the inner sleeve and the elastic element are both located in the elastic element mounting cavity, and the upper end of the elastic element abuts against the outward flange.

[0022] In one embodiment, the projection of the inner edge of the pressure plate along the axial direction of the outer sleeve is located within the elastic element mounting cavity, and the outwardly flared flange is always located within the elastic element mounting cavity.

[0023] In one embodiment, a flow guide gap communicating with the elastic element mounting cavity exists between the inner edge of the pressure plate and the outer peripheral surface of the outer sleeve, and a flow guide hole communicating with the lower end of the elastic element mounting cavity is provided on the limiting ring.

[0024] In one embodiment, the inner edge of the pressure plate is provided with a flange extending in a direction away from the elastic element mounting cavity, and the flow guiding gap exists between the inner side of the flange and the outer peripheral surface of the outer sleeve, and a flow passage gap communicating with the flow guiding gap exists between the outer sleeve and the inner wall of the elastic element mounting cavity.

[0025] In one embodiment, the outlet of the inner ring ejector channel is provided with an internal thread, and the lower end of the inner sleeve is provided with an external thread that mates with the internal thread. The lower end of the inner sleeve is screwed to the outlet of the inner ring ejector channel.

[0026] The second technical problem mentioned above is solved by the following technical solution:

[0027] Gas stove, including the burner mentioned above.

[0028] The gas stove described in this utility model has the following advantages compared with the prior art:

[0029] This gas stove can accommodate cookware with different bottom shapes.

[0030] When the cookware is flat-bottomed, it is placed on a pot rack. The bottom of the flat-bottomed cookware does not press down on the center burner cap. Because the elastic element always provides upward support to the center burner cap, it is positioned higher than the outer ring burner cap, ensuring the center burner cap is as close as possible to the bottom of the flat-bottomed cookware. When the center burner cap is flush with the pot rack, it can be placed against the pot, allowing the smaller flame in the center to also be as close as possible to the bottom of the flat-bottomed cookware, ensuring the thermal efficiency of the center flame. When the cookware is round-bottomed, it is placed on a pot rack. Because the bottom of the round-bottomed cookware is a concave arc shape, the bottom of the round-bottomed cookware will press down on the center burner cap. Under this downward pressure, the center burner cap will press down on the elastic element and move downward, thus preventing the center burner cap from interfering with the bottom of the round-bottomed cookware, ensuring normal use. Furthermore, the center burner cap remains in close contact with the bottom of the round-bottomed cookware, fully ensuring the heating efficiency of the flame at the center burner cap on the bottom of the pot. When the round-bottomed cookware is removed, the center burner cap moves upward and resets under the elastic restoring force of the elastic element. Attached Figure Description

[0031] Figure 1 A schematic diagram of the burner provided in an embodiment of this utility model;

[0032] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 for Figure 2 A cross-sectional structural diagram of the central flame cap;

[0034] Figure 4 for Figure 1 Enlarged view of point B in the middle;

[0035] Figure 5 A schematic diagram showing the burner installed on the gas stove panel and heating a flat-bottomed cookware according to an embodiment of the present utility model.

[0036] Figure 6 for Figure 5 A diagram with cooking utensils hidden in the middle;

[0037] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0038] Figure 8 A schematic diagram showing the burner installed on the gas stove panel and heating a round-bottomed cookware according to an embodiment of the present utility model.

[0039] Figure 9 for Figure 8 A diagram with cooking utensils hidden in the middle;

[0040] Figure 10 for Figure 9Enlarged view of point D in the middle.

[0041] Label Explanation:

[0042] 100. Cooking utensils;

[0043] 10. Pot rack;

[0044] 1. Burner head; 11. Limiting ring; 111. Flow guide hole; 12. Elastic element mounting cavity; 121. Flow guide gap; 122. Flow gap; 13. Inner ring ejector channel;

[0045] 2. Center flame cap mounting structure; 21. Inner sleeve; 22. Outer sleeve; 23. Elastic element;

[0046] 3. Outer ring flame cap;

[0047] 4. Center flame cap; 41. Install stepped structure;

[0048] 5. Outer tube travel limit structure; 51. Pressure plate; 511. Flanged edge; 52. Outward flange. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] In the description of this application, it should be understood that the terms "center", "upper", "lower", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0052] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] This embodiment provides a gas stove that can heat cookware of different shapes to meet the user's cooking needs.

[0054] See Figures 1-5 The gas stove includes a gas stove panel and a burner installed on the gas stove panel. At the same time, a pot rack 10 supporting the cooking utensils is placed on the gas stove panel. The cooking utensils 100 are placed on the pot rack 10, and the burner is located below the cooking utensils 100 to heat the cooking utensils 100.

[0055] Alternatively, cookware 100 can be a pot.

[0056] See Figures 1-4 The burner includes a burner head 1, a central burner cover mounting structure 2, an outer ring burner cover 3, and a central burner cover 4.

[0057] The furnace head 1 is equipped with an inner ring ejector channel 13 and an outer ring ejector channel.

[0058] The central burner cap 4 is installed on the burner head 1, and the central burner cap 4 is connected to the inner ring ejector channel 13.

[0059] The outer ring burner cover 3 is located on the outer ring of the burner head 1 and the center burner cover 4. The outer ring burner cover 3 is connected to the outer ring ejector channel.

[0060] The center burner mounting structure 2 includes an elastic element 23. The center burner 4 is mounted on the burner head 1 through the elastic element 23. The elastic element 23 always provides an upward supporting force to the center burner 4. When the center burner 4 is not subjected to external force, it is higher than the outer ring burner 3.

[0061] The burner, when used on a gas stove, can accommodate cookware 100 with different bottom shapes. A pot rack is provided on the gas stove to support the cookware 100.

[0062] When the cooker 100 is a flat-bottomed cooker, the flat-bottomed cooker is placed on the pot rack. The bottom surface of the flat-bottomed cooker will not press down on the central burner cap 4, and the elastic element 23 always provides an upward support force to the central burner cap 4. The central burner cap 4 is set higher than the outer ring burner cap 3, so that the central burner cap 4 is as close as possible to the bottom surface of the flat-bottomed cooker. When the central burner cap 4 is flush with the pot rack, the central burner cap 4 can be set against the pot, so that the central burner with a smaller heat output is also as close as possible to the bottom surface of the flat-bottomed cooker, ensuring the thermal efficiency of the central burner.

[0063] When the cooker 100 is a round-bottomed cooker, it is placed on a pot rack. Because the bottom of the round-bottomed cooker has a concave, arc-shaped structure, the bottom surface of the cooker presses down on the central burner cap 4. Under this downward pressure, the central burner cap 4 presses down on the elastic element 23 and moves downward, thus preventing the central burner cap 4 from interfering with the bottom surface of the cooker and ensuring its normal use. Furthermore, the central burner cap 4 remains in close contact with the bottom surface of the cooker, fully ensuring the heating efficiency of the flame at the central burner cap 4 on the bottom of the pot. When the cooker is removed, the central burner cap 4 moves upward and returns to its original position under the elastic restoring force of the elastic element 23.

[0064] Optionally, the elastic element 23 is a compression spring.

[0065] Furthermore, in one embodiment, the center burner mounting structure 2 further includes an inner sleeve 21 and an elastic element 23. The lower end of the inner sleeve 21 is installed on the burner head 1 and communicates with the inner ring ejector channel 13 of the burner head 1. The outer sleeve 22 is slidably fitted onto the upper end of the inner sleeve 21 along its own axial direction. The elastic element 23 is fitted onto the outer periphery of the inner sleeve 21 and is always elastically positioned between the lower ends of the burner head 1 and the outer sleeve 22. Both the inner sleeve 21 and the outer sleeve 22 are hollow structures with openings at both ends. The center burner 4 is disposed at the upper end of the outer sleeve 22.

[0066] That is, the upper end of the elastic element 23 is connected to the lower end of the outer sleeve 22, and the center burner cap 4 is set at the upper end of the outer sleeve 22, thereby realizing the connection between the center burner cap 4 and the upper end of the elastic element 23. In the gas stove, when the center burner cap 4 is not subjected to downward pressure, the center burner cap 4 is flush with the pot rack 10, and at the same time, the center burner cap 4 is higher than the outer ring burner cap 3.

[0067] Understandably, the burner head 1 can supply combustible gas, such as natural gas, to the outer ring burner cap 3 and the central burner cap 4. Specifically, the inner ring ejector channel 13 of the burner head 1 is connected to the inner sleeve 21. Both the inner sleeve 21 and the outer sleeve 22 are hollow structures with openings at both ends, thereby supplying combustible gas to the central burner cap 4 via the inner sleeve 21 and the outer sleeve 22. The outer ring ejector channel of the burner head 1 is connected to the outer ring burner cap 3, thereby supplying combustible gas to the outer ring burner cap 3.

[0068] Specifically, with Figure 1 and Figure 4 Taking the indicated direction as an example, Figure 1 The orientation in the text refers to the orientation of the burner in actual use. The lower end of the inner sleeve 21 is installed on the burner head 1, and the outer sleeve 22 is slidably fitted onto the upper end of the inner sleeve 21 along its own axis. The elastic element 23 is fitted onto the outer periphery of the inner sleeve 21 and is always elastically positioned between the burner head 1 and the lower end of the outer sleeve 22. The center burner cap 4 is located at the upper end of the outer sleeve 22.

[0069] The burner provided in this embodiment can adapt to cookware 100 with different bottom shapes.

[0070] See Figures 5-7 When the cookware 100 is a flat-bottomed cookware, the flat-bottomed cookware is placed on the pot rack 10. The bottom surface of the flat-bottomed cookware is flat, so it will not press down on the center burner 4.

[0071] See Figures 8-10 When the cooker 100 is a round-bottomed cooker, it is placed on the pot rack 10. Because the bottom of the round-bottomed cooker has a concave arc-shaped structure, the bottom surface of the cooker presses down on the central burner cap 4. Under this downward pressure, the central burner cap 4 presses down on the outer sleeve 22. The outer sleeve 22 moves downward and applies a force to the elastic element 23, compressing the elastic element 23 and accumulating elastic potential energy. As the outer sleeve 22 moves downward, the central burner cap 4 also moves downward, thus preventing the central burner cap 4 from interfering with the bottom surface of the round-bottomed cooker and ensuring its normal use. Furthermore, the central burner cap 4 remains in close contact with the bottom surface of the round-bottomed cooker, ensuring that it can keep the cooker warm. When the round-bottomed cooker is removed, under the elastic restoring force of the elastic element 23, the outer sleeve 22 moves upward, causing the central burner cap 4 to move upward and return to its original position.

[0072] In the central burner cap mounting structure 2, the outer sleeve 22 is slidably sleeved on the upper end of the inner sleeve 21 along its own axis. Thus, when the outer sleeve 22 moves up and down relative to the inner sleeve 21, the inner sleeve 21 can guide the outer sleeve 22 and prevent the outer sleeve 22 from shifting during the movement. When the elastic element 23 undergoes elastic deformation, since the elastic element 23 is sleeved on the outer periphery of the inner sleeve 21, the inner sleeve 21 can prevent the axis of the elastic element 23 from shifting relative to the axis of the inner sleeve 21 during elastic deformation.

[0073] See Figure 2 and Figure 3 In one embodiment, the inner side of the center flame cap 4 is provided with a mounting step structure 41, which overlaps the upper end of the outer sleeve 22.

[0074] The installation of the step structure 41 enables the center flame cap 4 to be fitted onto the upper end of the outer tube 22, making it convenient to directly attach the center flame cap 4 to the upper end of the outer tube 22, and also making it easy to remove the center flame cap 4 when cleaning is required.

[0075] In one embodiment, the outlet of the inner ring ejector channel 13 is provided with an internal thread, and the lower end of the inner sleeve 21 is provided with an external thread that mates with the internal thread. The lower end of the inner sleeve 21 is screwed to the outlet of the inner ring ejector channel 13. This arrangement ensures the stable installation of the inner sleeve 21, guaranteeing both stable support for the central burner cap 4 and stable delivery of combustible gas to the central burner cap 4.

[0076] Furthermore, in one embodiment, the lower end of the outer sleeve 22 is provided with an outward flange 52, which elastically abuts or connects with the upper end of the elastic member 23.

[0077] Preferably, the outward flange 52 is integrally formed and disposed at the lower end of the outer sleeve 22.

[0078] The outward flange 52 ensures that the downward pressure of the outer sleeve 22 can be transmitted to the elastic element 23, and also ensures that the upward elastic restoring force of the elastic element 23 can be stably applied to the outer sleeve 22.

[0079] Furthermore, in one embodiment, see [link to relevant documentation]. Figure 1 and Figure 4 In order to limit the movement of the outer tube 22, in this embodiment, the burner also includes an outer tube travel limiting structure 5, which includes a pressure plate 51 and an outward flange 52.

[0080] The pressure plate 51 is fixedly installed on the furnace head 1, and the pressure plate 51 has a through hole for the outer sleeve 22 to slide through.

[0081] Optionally, the pressure plate 51 can be fixedly installed on the furnace head 1 by welding or screw connection.

[0082] The outward flange 52 is located at the lower end of the outer sleeve 22. The outward flange 52 can move with the outer sleeve 22 to abut against the pressure plate 51 to limit the maximum extension stroke of the outer sleeve 22.

[0083] For example, with Figure 4 Taking the indicated orientation as an example, the outward-flaring flange 52 moves upward to abut against the surface of the pressure plate 51 facing the inner ring injection channel 13 (i.e., the lower surface of the pressure plate 51), thereby limiting the highest position of the center burner cap 4. Specifically, taking the actual operating orientation of the burner as an example, the outward-flaring flange 52 can rise and fall with the outer sleeve 22 and abut against the lower surface of the pressure plate 51. When the outward-flaring flange 52 rises with the outer sleeve 22 to abut against the lower surface of the pressure plate 51, the outer sleeve 22 has risen to its maximum height and cannot rise further.

[0084] Specifically, when the center flame cap 4 is not subjected to downward pressure, under the elastic force of the elastic element 23, the outward-flaring flange 52 is pushed upward to abut against the lower surface of the pressure plate 51, limiting the highest position of the center flame cap 4. After the center flame cap 4 is pressed down, it moves downward, and the outer sleeve 22 and the outward-flaring flange 52 also move downward. The outward-flaring flange 52 transmits the downward pressure to the elastic element 23, causing the elastic element 23 to be compressed. When the downward pressure on the center flame cap 4 is removed, under the elastic restoring force of the elastic element 23, the outward-flaring flange 52 is pushed upward again to abut against the lower surface of the pressure plate 51.

[0085] In one embodiment, the outwardly flared flange 52 of the outer tube travel limiting structure 5 is connected to the upper end of the elastic member 23. Optionally, the connection between the outwardly flared flange 52 and the elastic member 23 can be elastic abutment, detachable connection, or fixed connection. With this configuration, the outwardly flared flange 52 not only transmits force between the outer tube 22 and the elastic member 23, but also cooperates with the pressure plate 51 to limit the travel of the outer tube 22.

[0086] Specifically, in this embodiment, the outward flange 52 of the outer tube travel limiting structure 5 elastically abuts against the upper end of the elastic member 23, thus making the installation structure of the elastic member 23 simpler and facilitating the individual replacement of the outer tube 22 and the elastic member 23.

[0087] Specifically, see Figure 1 , Figure 4 and Figure 7 In one embodiment, a limiting ring 11 is provided on the burner head 1, and the limiting ring 11 surrounds and forms an elastic element mounting cavity 12. The lower end of the inner sleeve 21 and the elastic element 23 are both located in the elastic element mounting cavity 12.

[0088] The elastic element mounting cavity 12 allows the elastic element 23 to be concealed within it, protecting the elastic element 23 and improving the overall integrity of the burner. The upper end of the elastic element 23 abuts against the outward-flaring flange 52. When the central burner cap 4 is not under downward pressure, the elastic element 23 provides upward support to the outer sleeve 22 via the outward-flaring flange 52, thereby providing support to the central burner cap 4. When the central burner cap 4 is under downward pressure and moves downward, this downward pressure is transmitted to the elastic element 23 via the outward-flaring flange 52, causing the elastic element 23 to be compressed and accumulate elastic potential energy. When the downward pressure on the central burner cap 4 disappears, the elastic restoring force of the elastic element 23 acts on the outward-flaring flange 52, causing the outer sleeve 22 to lift and reset the central burner cap 4.

[0089] Furthermore, in one embodiment, the projection of the inner edge of the pressure plate 51 along the axial projection of the outer sleeve 22 is located within the elastic element mounting cavity 12, and the outwardly flared flange 52 is always located within the elastic element mounting cavity 12. This arrangement ensures that the outwardly flared flange 52 can abut against the lower surface of the pressure plate 51, thereby limiting the highest position of the central flame cap 4.

[0090] During cooking, soup may overflow from the cooker 100; the overflowing soup will flow along the outer and bottom surfaces of the cooker 100 and eventually drip onto the burner. Because the outer sleeve 22 needs to move up and down, there is always a gap between the outer circumference of the outer sleeve 22 and the inner edge of the pressure plate 51, and the soup overflowing from the cooker may flow into the gap between the outer circumference of the outer sleeve 22 and the inner edge of the pressure plate 51.

[0091] To prevent soup from accumulating at the burner, in one embodiment, see [reference needed]. Figure 1 and Figure 4 A flow guide gap 121, communicating with the elastic element mounting cavity 12, exists between the inner edge of the pressure plate 51 and the outer peripheral surface of the outer sleeve 22. A flow passage gap 122, communicating with the flow guide gap 121, exists between the outer sleeve 22 and the inner wall of the elastic element mounting cavity 12. In other words, the gap between the outer peripheral surface of the outer sleeve 22 and the inner edge of the pressure plate 51 is the flow guide gap 121. The broth flows along the flow guide gap 121 and the flow passage gap 122 into the elastic element mounting cavity 12.

[0092] Furthermore, the limiting ring 11 is provided with a guide hole 111 that communicates with the lower end of the elastic element mounting cavity 12. Liquid flowing into the elastic element mounting cavity 12 along the guide gap 121 can flow out from the guide hole 111, preventing liquid from accumulating in the elastic element mounting cavity 12.

[0093] Furthermore, in the user's cabinet, a drip tray can be installed below the drainage hole 111, which the user can clean periodically.

[0094] When the burner is working, the temperature is high. At this time, the guide hole 111 can also dissipate heat from the elastic element 23. The heat in the elastic element mounting cavity 12 can be dissipated from the guide hole 111, preventing the elastic element 23 from hardening, deforming or cracking due to excessive temperature, which would cause the center burner cover mounting structure 2 to fail.

[0095] Optionally, the number of guide holes 111 can be one or more.

[0096] Furthermore, in one embodiment, the inner edge of the pressure plate 51 is provided with a flange 511 extending in a direction away from the elastic element mounting cavity 12, and there is a flow guiding gap 121 between the inner side of the flange 511 and the outer peripheral surface of the outer sleeve 22.

[0097] The flange 511 allows the soup overflowing from the cookware to quickly enter the guide gap 121, preventing the soup from flowing from the inner edge of the pressure plate 51 to the upper surface of the pressure plate 51.

[0098] For example, the method of using the gas stove with the flat-bottomed cookware 100 to cook food provided in this embodiment is as follows:

[0099] See Figures 5-7Simply place the cookware 100 on the pot rack 10. At this time, the center burner cap 4 is flush with the pot rack 10 and is higher than the outer ring burner cap 3. When the user needs to use high heat, since the center burner cap 4 is flush with the pot rack 10, it can contact the bottom of the cookware 100, reducing the temperature difference between the center and the outer ring and improving the user's cooking experience. When the user needs to use the center heat, the center burner cap 4 contacts the bottom of the cookware 100 to ensure the utilization rate of the heat from the center heat.

[0100] For example, the method of using the gas stove with a round-bottomed cookware 100 to cook food provided in this embodiment is as follows:

[0101] See Figures 8-10 When the cooker 100 is placed on the pot rack 10, the bottom of the cooker 100 will press down the center burner cap 4. Both the center burner cap 4 and the outer sleeve 22 will move down, and the elastic element 23 will be compressed. After the center burner cap 4 moves down, it will not interfere with the placement of the round-bottomed cooker 100, ensuring the stable placement of the cooker 100. Moreover, the center burner cap 4 is always in contact with the bottom of the cooker 100, reducing the temperature difference between the center and the outer ring, and improving the user's cooking experience. When the user needs to use the center burner, the center burner cap 4 is in contact with the bottom of the cooker 100 to ensure the utilization rate of the heat from the center burner.

[0102] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0103] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A burner, characterized in that, include: The burner head (1) is equipped with an inner ring ejector channel (13) and an outer ring ejector channel; A central flame cap (4) is disposed on the burner head (1), and the central flame cap (4) is connected to the inner ring ejector channel (13); The outer ring flame cap (3) is disposed on the furnace head (1) and located on the outer ring of the central flame cap (4), and the outer ring flame cap (3) is connected to the outer ring ejector channel; The center burner mounting structure (2) includes an elastic element (23). The center burner (4) is mounted on the burner head (1) through the elastic element (23). The elastic element (23) always provides an upward supporting force to the center burner (4). When the center burner (4) is not subjected to external force, it is higher than the outer ring burner (3).

2. The burner according to claim 1, characterized in that, The central burner mounting structure (2) further includes an inner sleeve (21) and an outer sleeve (22). The lower end of the inner sleeve (21) is installed on the burner head (1) and communicates with the inner ring ejector channel (13). The outer sleeve (22) is slidably sleeved on the upper end of the inner sleeve (21) along its own axis. The elastic element (23) is sleeved on the outer periphery of the inner sleeve (21) and is always elastically located between the lower ends of the burner head (1) and the outer sleeve (22). Both the inner sleeve (21) and the outer sleeve (22) are hollow structures with openings at both ends. The central fire cap (4) is located at the upper end of the outer sleeve (22).

3. The burner according to claim 2, characterized in that, The burner also includes an outer tube travel limiting structure (5), which includes: A pressure plate (51) is fixedly installed on the furnace head (1), and the pressure plate (51) has a through hole for the outer sleeve (22) to slide through; An outward flange (52) is provided at the lower end of the outer sleeve (22). The outward flange (52) can move with the outer sleeve (22) to abut against the pressure plate (51) to limit the maximum extension stroke of the outer sleeve (22).

4. The burner according to claim 3, characterized in that, The outwardly flared flange (52) is elastically connected to the upper end of the elastic element (23).

5. The burner according to claim 3, characterized in that, A limiting ring (11) is provided on the furnace head (1), and the limiting ring (11) surrounds and forms an elastic element mounting cavity (12). The lower end of the inner sleeve (21) and the elastic element (23) are both located in the elastic element mounting cavity (12), and the upper end of the elastic element (23) abuts against the outward flange (52).

6. The burner according to claim 5, characterized in that, Along the axial projection of the outer sleeve (22), the projection of the inner edge of the pressure plate (51) is located within the elastic element mounting cavity (12), and the outward flange (52) is always located within the elastic element mounting cavity (12).

7. The burner according to claim 6, characterized in that, There is a flow guide gap (121) between the inner edge of the pressure plate (51) and the outer peripheral surface of the outer sleeve (22) that communicates with the elastic element mounting cavity (12), and the limiting ring (11) is provided with a flow guide hole (111) that communicates with the lower end of the elastic element mounting cavity (12).

8. The burner according to claim 7, characterized in that, The inner edge of the pressure plate (51) is provided with a flange (511) extending in a direction away from the elastic element mounting cavity (12). The inner side of the flange (511) and the outer peripheral surface of the outer sleeve (22) are connected by the flow guide gap (121). The outer sleeve (22) and the inner wall of the elastic element mounting cavity (12) are connected by a flow passage gap (122) communicating with the flow guide gap (121).

9. The burner according to claim 2, characterized in that, The outlet of the inner ring ejector channel (13) is provided with an internal thread, and the lower end of the inner sleeve (21) is provided with an external thread that mates with the internal thread. The lower end of the inner sleeve (21) is screwed to the outlet of the inner ring ejector channel (13).

10. A gas stove, characterized in that, Including the burner as described in any one of claims 1-9.

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