Upper air inlet burner and stove

Abstract

The utility model relates to the technical field of kitchen utensils, and discloses an upper air inlet burner and a stove. The upper air inlet burner comprises a mounting seat, an outer ring nozzle and a burner body, wherein the outer ring nozzle is mounted on the mounting seat; the burner body is arranged on the mounting base, a mixing cavity and an outer ring cavity which is arranged in the circumferential direction of the mixing cavity are formed in the burner body, and the outer ring cavity communicates with an outer ring fire outlet hole; a plurality of outer ring gas channels are further arranged between the mixing cavity and the outer ring cavity and evenly arranged at intervals in the circumferential direction of the mixing cavity, the two ends of each outer ring gas channel communicate with the outer ring cavity and the mixing cavity, and an outlet of the outer ring nozzle communicates with the mixing cavity through an outer ring ejector. According to the upper air inlet burner, gas and air can be evenly and fully mixed, gas waste and the phenomenon of yellow flame or out-of-flame are avoided, it can be guaranteed that the lengths of burning flames are consistent, the appearance of the upper air inlet burner is attractive, and the use experience of a user is improved.

Description

Technical Field

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

[0002] An upper air inlet burner refers to a device that allows the primary air required for operation to enter the burner from above the stove plate. It can fully utilize the air above the stove plate for combustion, thereby achieving efficient and stable combustion effects. However, upper air inlet burners usually have the following problems in actual use: 1) The gas at the diffuser pipe of the ejector flows directly into the fire cover without sufficient mixing, resulting in yellow flames or flame separation; 2) The gas entering the fire cover is unevenly distributed along its circumference, resulting in a high flame at the air outlet, while the flame away from the air outlet is short, causing the short flame to fail to effectively contact the bottom of the pot, resulting in gas waste, and the uneven length of the flame will also make the burner combustion flame look unsightly, affecting the user experience.

[0003] Therefore, it is urgent to propose an upward air inlet burner to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a top-inlet burner and stove, which can make the gas and air evenly and fully mixed, avoid gas waste and yellow flame or flame separation phenomenon, and ensure the consistency of the burning flame length, make it beautiful in appearance, and enhance the user experience.

[0005] As conceived above, the technical solution adopted by the utility model is:

[0006] An upward air inlet burner comprises:

[0007] Mounting seat;

[0008] An outer ring nozzle is mounted on the mounting seat;

[0009] A burner body is arranged on the mounting seat, and a mixing chamber and an outer ring chamber circumferentially arranged around the mixing chamber are arranged in the burner body, and the outer ring chamber is connected to an outer ring fire outlet hole; a plurality of outer ring gas channels are also arranged between the mixing chamber and the outer ring chamber, and the plurality of outer ring gas channels are evenly spaced along the circumference of the mixing chamber, and both ends of each of the outer ring gas channels are connected to the outer ring chamber and the mixing chamber, and the outlet of the outer ring nozzle is connected to the mixing chamber through an outer ring ejector.

[0010] As a preferred solution of the upper air inlet burner provided by the utility model, the upper air inlet burner further comprises an inner ring nozzle, and the inner ring nozzle is mounted on the mounting seat;

[0011] An inner ring cavity is also provided in the burner body, the mixing cavity is arranged outside the inner ring cavity, and the mixing cavity is not connected with the inner ring cavity, the inner ring cavity is connected with an inner ring fire outlet hole, and the outlet of the inner ring nozzle is connected with the inner ring cavity through an inner ring ejector.

[0012] As a preferred solution of the upper air inlet burner provided by the utility model, the number of the outer ring nozzles is at least two, each of the outer ring nozzles corresponds to one outer ring ejector, and the inner ring ejector and at least two outer ring ejectors are evenly spaced along the circumference of the mixing chamber.

[0013] As a preferred solution of the upper air inlet burner provided by the utility model, the burner body comprises:

[0014] A fire cover seat assembly is arranged on the mounting seat, wherein a central groove and an outer ring groove arranged around the central groove are formed in the fire cover seat assembly;

[0015] An inner ring fire cover is connected to the fire cover seat assembly and closes the top opening of the central groove. The inner ring fire cover and the central groove are surrounded to form the inner ring cavity. The inner ring fire outlet hole is opened at the top of the inner ring fire cover.

[0016] The outer ring fire cover is connected to the fire cover seat assembly and closes the top opening of the outer ring groove. The outer ring fire cover and the outer ring groove are arranged to form the outer ring cavity. The outer ring fire outlet is opened at the top of the outer ring fire cover.

[0017] As a preferred solution of the upper air inlet burner provided by the utility model, the fire cover seat assembly includes:

[0018] A fire cover upper cover, wherein the center of the fire cover upper cover is convex downward to form a center ring, and a mixing ring groove and a plurality of sub-grooves are also provided at the bottom of the fire cover upper cover, wherein the mixing ring groove is arranged around the outer periphery of the center ring, and the plurality of sub-grooves are arranged at intervals along the circumference of the mixing ring groove and are all connected to the mixing ring groove;

[0019] A fire cover base, wherein the fire cover base is provided with a first inner groove and a second inner groove surrounding the first inner groove; the fire cover base is sleeved on the outside of the fire cover upper cover, and the center ring cooperates with the first inner groove to form the center groove, the outer ring groove is formed between the inner wall of the fire cover base and the outer wall of the fire cover upper cover, the mixing ring groove cooperates with the second inner groove to form the mixing chamber, and the sub-groove cooperates with the inner bottom wall of the fire cover base to form the outer ring gas channel.

[0020] As a preferred solution of the upper air inlet burner provided by the utility model, anti-fouling eaves are protrudingly provided on the outer side wall of the fire cover base at positions corresponding to the outer ring nozzle and the inner ring nozzle.

[0021] As a preferred solution of the upper air inlet burner provided by the utility model, the top edge of the anti-fouling eaves gradually slopes downward in a direction away from the fire cover base; and / or

[0022] An anti-fouling groove is arranged at the bottom of the anti-fouling eaves, and the anti-fouling groove is located at a side of the corresponding nozzle away from the first inner groove.

[0023] As a preferred solution of the upper air inlet burner provided by the utility model, the fire cover seat assembly is provided with a secondary air inlet penetrating the fire cover upper cover and the fire cover base.

[0024] As a preferred solution of the upper air inlet burner provided by the utility model, there are multiple secondary air inlets, and the multiple secondary air inlets are arranged at intervals along the circumference of the fire cover seat assembly, and a shielding member for shielding the mounting hole on the mounting seat is formed between two adjacent secondary air inlets.

[0025] As a preferred solution of the upper air inlet burner provided by the utility model, the outer ring ejector and the inner ring ejector are both integrated at the bottom of the fire cover base.

[0026] As a preferred solution of the upper air inlet burner provided by the utility model, a positioning groove is provided on the bottom of the fire cover base and one of the mounting seat, and a positioning boss matched with the positioning groove is provided on the other.

[0027] As a preferred solution of the upper air inlet burner provided by the utility model, a first mounting column is arranged on the mounting seat, the outer ring nozzle is arranged on the side of the first mounting column, and the outlet of the outer ring nozzle is arranged in the horizontal direction and aligned with the inlet of the outer ring ejector; and / or

[0028] A second mounting column is arranged on the mounting seat, the outer ring nozzle is arranged on the side of the second mounting column, and the outlet of the outer ring nozzle is arranged in a horizontal direction and is aligned with the inlet of the inner ring ejector.

[0029] As a preferred solution of the upper air inlet burner provided by the utility model, the upper air inlet burner further comprises a thermocouple, and the mounting seat is provided with a third mounting column for mounting the thermocouple; and / or

[0030] The upper air inlet burner further comprises an ignition needle, and the mounting seat is provided with a fourth mounting column for mounting the ignition needle.

[0031] As a preferred solution of the upper air inlet burner provided by the utility model, the burner body is also provided with a first positioning hole matching with the third mounting column and a second positioning hole matching with the fourth mounting column; at least one of the first positioning hole and the second positioning hole is a non-circular hole.

[0032] The utility model also provides a stove, comprising a bottom shell and the upper air inlet burner as described above, wherein the upper air inlet burner is installed on the bottom shell.

[0033] The beneficial effects of the utility model are:

[0034] The utility model provides an upper air inlet burner, which is provided with a mixing chamber, an outer ring gas channel and an outer ring chamber that are connected in sequence in the burner body, so that the outer ring gas ejected from the outlet of the outer ring nozzle flows into the mixing chamber after passing through the outer ring ejector, and is fully mixed in the mixing chamber, and then evenly distributed to multiple outer ring gas channels and flows to the outer ring chamber, and finally flows out from the outer ring fire outlet for full combustion. The above design, on the one hand, can make the gas and air evenly and fully mixed, avoid gas waste and yellow flame or flame separation phenomenon, ensure the thermal efficiency of the upper air inlet burner, save energy, and reduce the emission of harmful substances; on the other hand, the design can also ensure that the length of the combustion flame is consistent, make it beautiful in appearance, and enhance the user experience.

[0035] The utility model also provides a stove, which can make the gas and air evenly and fully mixed by applying the above-mentioned upper air inlet burner, avoid gas waste and the phenomenon of yellow flame or flame separation, and ensure that the burning flame is of consistent length, making it beautiful in appearance and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of an upper air inlet burner provided in an embodiment of the utility model;

[0037] Figure 2 It is a cross-sectional schematic diagram of an upper air inlet burner provided by an embodiment of the utility model;

[0038] Figure 3 It is a schematic diagram of the explosion structure of the upper air inlet burner provided in the embodiment of the utility model;

[0039] Figure 4 It is a structural schematic diagram of the fire cover provided by the embodiment of the utility model at a viewing angle;

[0040] Figure 5 It is a structural schematic diagram of the fire cover upper cover provided by the embodiment of the utility model at another viewing angle;

[0041] Figure 6It is a structural schematic diagram of the fire cover base provided by the embodiment of the utility model at a viewing angle;

[0042] Figure 7 It is a structural schematic diagram of the fire cover base provided by the embodiment of the utility model at another viewing angle;

[0043] Figure 8 It is a schematic diagram of the exploded structure of the mounting seat and the fire cover base provided by the embodiment of the utility model;

[0044] Fig. 9 It is a schematic diagram of the structure of the mounting base, nozzle, thermocouple and ignition needle provided in the embodiment of the utility model;

[0045] Fig.10 It is a cross-sectional schematic diagram of the mounting base provided by the embodiment of the utility model at a viewing angle;

[0046] Fig.11 It is a cross-sectional schematic diagram of the mounting base provided by the embodiment of the utility model at another viewing angle.

[0047] In the figure:

[0048] 100, mounting seat; 101, mounting hole; 102, positioning boss; 103, first mounting column; 1031, outer ring air inlet flow channel; 1032, outer ring air outlet; 104, second mounting column; 1041, second inner ring air inlet flow channel; 1042, inner ring air outlet; 105, third mounting column; 106, fourth mounting column; 107, outer ring air inlet main flow channel; 1071, outer ring air inlet; 108, first inner ring air inlet flow channel; 1081, inner ring air inlet; 109, avoidance groove;

[0049] 200, inner ring nozzle;

[0050] 300, outer ring nozzle;

[0051] 400, fire cover seat assembly; 4001, inner ring cavity; 4002, outer ring cavity; 4003, mixing cavity; 4004, outer ring gas channel; 4005, secondary air inlet; 410, fire cover base; 411, first inner groove; 412, second inner groove; 413, anti-fouling eaves; 4131, anti-fouling groove; 414, shielding member; 415, positioning groove; 416, first positioning hole; 417, second positioning hole; 420, fire cover upper cover; 421, center ring; 422, mixing ring groove; 423, sub-grooves;

[0052] 500, inner ring fire cover; 501, inner ring fire outlet hole;

[0053] 600, outer ring fire cover; 601, outer ring fire outlet hole;

[0054] 701, outer ring ejector; 702, inner ring ejector;

[0055] 801, thermocouple; 802, ignition needle;

[0056] 900. Sealing steel ball. DETAILED DESCRIPTION

[0057] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0058] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0060] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0061] This embodiment provides a stove, which includes a bottom shell and a burner installed on the bottom shell, and gas is mixed with air and burned by the burner to cook food or heat water, etc. In this embodiment, the stove can be a gas stove or an integrated stove, which is not limited here.

[0062] Figure 1 A schematic structural diagram of the upper air inlet burner provided in this embodiment is shown. Figure 2 A cross-sectional schematic diagram of the upper air inlet burner provided in this embodiment is shown. Figure 3 FIG. 2 shows a schematic diagram of the explosion structure of the upper air inlet burner provided in this embodiment. Figure 1-Figure 3 As shown, the present embodiment further provides a burner, which includes a mounting seat 100, an outer ring nozzle 300 and a burner body, wherein the outer ring nozzle 300 is mounted on the mounting seat 100; the burner body is arranged on the mounting seat 100, and a mixing chamber 4003 and an outer ring chamber 4002 arranged circumferentially around the mixing chamber 4003 are arranged in the burner body, and the outer ring chamber 4002 is connected to an outer ring fire outlet hole 601; a plurality of outer ring gas channels 4004 are also arranged between the mixing chamber 4003 and the outer ring chamber 4002, and the plurality of outer ring gas channels 4004 are evenly spaced along the circumference of the mixing chamber 4003, and both ends of each outer ring gas channel 4004 are connected to the outer ring chamber 4002 and the mixing chamber 4003, and the outlet of the outer ring nozzle 300 is connected to the mixing chamber 4003 through the outer ring ejector 701.

[0063] The burner provided in this embodiment is provided with a mixing chamber 4003, an outer ring gas channel 4004 and an outer ring chamber 4002 which are connected in sequence in the burner body, so that the outer ring gas ejected from the outlet of the outer ring nozzle 300 flows into the mixing chamber 4003 after passing through the outer ring ejector 701, and is fully mixed in the mixing chamber 4003, and then evenly distributed to multiple outer ring gas channels 4004 and flows to the outer ring chamber 4002, and finally flows out from the outer ring fire outlet 601 for full combustion. The above design, on the one hand, can make the gas and air evenly and fully mixed, avoid gas waste and the phenomenon of yellow flame or flame separation, ensure the thermal efficiency of the upper air inlet burner, save energy, and reduce the emission of harmful substances; on the other hand, the design can also ensure that the length of the combustion flame is consistent, make it beautiful in appearance, and enhance the user experience.

[0064] Furthermore, the upper air inlet burner further comprises an inner ring nozzle 200, which is mounted on the mounting seat 100; an inner ring cavity 4001 is further provided in the burner body, a mixing cavity 4003 is arranged outside the inner ring cavity 4001, and the mixing cavity 4003 and the inner ring cavity 4001 are not connected, the inner ring cavity 4001 is connected with the inner ring fire outlet 501, and the outlet of the inner ring nozzle 200 is connected with the inner ring cavity 4001 through the inner ring ejector 702. The inner ring gas ejected from the outlet of the inner ring nozzle 200 can flow out from the inner ring fire outlet 501 after passing through the inner ring cavity 4001 and burn, and this design can form an inner and outer double-layer flame to improve the combustion efficiency, save energy and protect the environment, and can make the bottom of the cooker be heated more evenly, thereby improving the cooking effect.

[0065] It should be noted that the inner ring nozzle 200 and the outer ring nozzle 300 are both relatively mature structures in the prior art, and the specific structures and working principles of the inner ring nozzle 200 and the outer ring nozzle 300 are not described in detail in this embodiment.

[0066] like Figure 2 and Figure 3 As shown, the burner body includes a fire cover seat assembly 400, an inner ring fire cover 500 and an outer ring fire cover 600. The fire cover seat assembly 400 is arranged on the mounting seat 100. A central groove and an outer ring groove arranged around the central groove are formed in the fire cover seat assembly 400; the inner ring fire cover 500 is connected to the fire cover seat assembly 400 and closes the top opening of the central groove, and the inner ring fire cover 500 and the central groove are surrounded to form the above-mentioned inner ring cavity 4001, and the inner ring fire outlet hole 501 is opened at the top of the inner ring fire cover 500; the outer ring fire cover 600 is connected to the fire cover seat assembly 400 and closes the top opening of the outer ring groove, and the outer ring fire cover 600 and the outer ring groove are surrounded to form the above-mentioned outer ring cavity 4002, and the outer ring fire outlet hole 601 is opened at the top of the outer ring fire cover 600.

[0067] Figure 4 A schematic structural diagram of the fire cover upper cover 420 provided in this embodiment is shown at a viewing angle. Figure 5 A schematic structural diagram of the fire cover upper cover 420 provided in this embodiment is shown from another perspective. Figure 6 A schematic structural diagram of the fire cover base 410 provided in this embodiment at a viewing angle is shown. Figure 7 FIG. 4 shows a schematic diagram of the structure of the fire cover base 410 provided in this embodiment from another perspective. Figure 4-Figure 7 Combined with Figure 2 , Figure 3 As shown, the fire cover seat assembly 400 includes a fire cover upper cover 420 and a fire cover base 410. The center of the fire cover upper cover 420 is convex downward to form a center ring 421. The bottom of the fire cover upper cover 420 is also provided with a mixing ring groove 422 and a plurality of sub-grooves 423. The mixing ring groove 422 is arranged around the outer periphery of the center ring 421. The plurality of sub-grooves 423 are arranged at intervals along the circumference of the mixing ring groove 422 and are all connected to the mixing ring groove 422. The fire cover base 410 is provided with a first inner groove 411 and The second inner groove 412 is arranged outside the first inner groove 411; the fire cover base 410 is sleeved outside the fire cover upper cover 420, and the center ring 421 cooperates with the first inner groove 411 to form the above-mentioned center groove, the inner wall of the fire cover base 410 and the outer wall of the fire cover upper cover 420 form the above-mentioned outer ring groove, the mixing ring groove 422 cooperates with the second inner groove 412 to form the above-mentioned mixing chamber 4003, and the sub-groove 423 cooperates with the inner bottom wall of the fire cover base 410 to form the above-mentioned outer ring gas channel 4004. By designing the fire cover seat assembly 400 as a split fire cover upper cover 420 and a fire cover base 410, the processing of the groove structure thereon can be facilitated, and the convenience and efficiency of processing can be improved.

[0068] In this embodiment, the number of outer ring gas channels 4004 is three (i.e., the number of dividing grooves 423 on the fire cover upper cover 420 is three), and the three outer ring gas channels 4004 are evenly spaced along the circumference of the mixing chamber 4003, and the angle between two adjacent outer ring gas channels 4004 is 120°. The number of the three outer ring gas channels 4004 is minimized while ensuring that the gas is evenly divided, thereby reducing the processing difficulty and improving the processing efficiency. This embodiment does not limit the number of outer ring gas channels 4004, which can also be set to two, four, five, or even more. Designers can adjust the number of outer ring gas channels 4004 according to actual needs to suit different usage scenarios.

[0069] In the related art, the upper air inlet burner also has the phenomenon of mutual suction of primary air. The primary air sucked by the ejector with poor ejection ability is insufficient, resulting in incomplete combustion, which in turn causes yellow flames to smoke the pot black, while the primary air sucked by the ejector with strong ejection ability is too much, resulting in the generation of flame separation, which in turn causes waste of gas. In order to solve this problem, in this embodiment, the number of outer ring nozzles 300 is at least two, each outer ring nozzle 300 corresponds to an outer ring ejector 701, and the inner ring ejector 702 and at least two outer ring ejectors 701 are evenly spaced along the circumference of the mixing chamber 4003. The uniform distribution of ejectors can effectively avoid the phenomenon of mutual suction of primary air when the upper air inlet burner is in use, thereby preventing the phenomenon of incomplete combustion caused by insufficient primary air sucked by the ejector and the phenomenon of waste of gas caused by excessive primary air suction.

[0070] In this embodiment, there are two outer ring nozzles 300, two outer ring ejectors 701, and the angle between two adjacent outer ring ejectors 701 and the angle between adjacent outer ring ejectors 701 and inner ring ejectors 702 are both 120°, which can avoid the situation where air is sucked from each other to the greatest extent; and the number of outer ring nozzles 300 can be reduced while ensuring the ejection efficiency, thereby reducing the processing cost. Of course, in other embodiments, designers in this field can also adjust the number of outer ring nozzles 300 according to actual needs, and this embodiment does not limit this.

[0071] like Figure 7 As shown, in this embodiment, the outer ring ejector 701 and the inner ring ejector 702 are integrated at the bottom of the fire cover base 410, which can simplify the processing flow, save the steps of assembling the outer ring ejector 701 and the inner ring ejector 702 with the fire cover base 410, improve the processing efficiency, and reduce the processing cost. Of course, in other embodiments, the outer ring ejector 701 and the inner ring ejector 702 can also be processed separately and then assembled on the fire cover base 410, which can also achieve the above effect.

[0072] Figure 8 FIG. 4 shows a schematic diagram of the exploded structure of the mounting base 100 and the fire cover base 410 provided in this embodiment. Figure 8 Combined with Figure 6 As shown, the fire cover seat assembly 400 is provided with a secondary air inlet 4005 that penetrates the fire cover upper cover 420 and the fire cover base 410 to provide secondary air for the upper air intake burner, thereby ensuring that the fuel is more fully mixed with the air, improving the combustion efficiency, and ensuring the stability of the combustion process. Optionally, there are multiple secondary air inlets 4005, and the multiple secondary air inlets 4005 are arranged at intervals along the circumference of the fire cover seat assembly 400, and a shielding member 414 for shielding the mounting hole 101 on the mounting seat 100 is formed between two adjacent secondary air inlets 4005. By setting up multiple secondary air inlets 4005, the intake area of ​​the secondary air can be increased to ensure that the inner ring flame has a sufficient supply of secondary air, thereby improving the thermal efficiency of the upper air intake burner; by forming a covering member 414 on the fire cover base 410 for covering the mounting hole 101 on the mounting base 100, the mounting screws at the connection position between the mounting base 100 and other structures can be covered, thereby ensuring the aesthetic appearance of the upper air intake burner, and at the same time protecting the mounting screws to facilitate after-sales maintenance and disassembly.

[0073] In this embodiment, if Figure 4-Figure 8 As shown, the sub-groove 423 on the fire cover upper cover 420 is directly opposite to the shielding member 414, and the two cooperate to form the above-mentioned outer ring gas channel 4004; the outer ring ejector 701 and the inner ring ejector 702 are both connected to the bottom of the corresponding shielding member 414, that is, the shielding member 414 can not only block the mounting hole 101 on the mounting seat 100, but also provide a mounting position for the outer ring ejector 701 and the inner ring ejector 702, and can cooperate with the sub-groove 423 to form the outer ring gas channel 4004, which can be used for multiple purposes and improve the structural compactness of the upper air inlet burner.

[0074] like Figure 7 and Figure 8 As shown, in order to achieve accurate assembly between the fire cover base 410 and the mounting seat 100, in this embodiment, a positioning groove 415 is provided at the bottom of the fire cover base 410, and a positioning boss 102 matching the positioning groove 415 is provided on the mounting seat 100. When the fire cover base 410 and the mounting seat 100 are assembled, the positioning groove 415 at the bottom of the fire cover base 410 can be aligned with the positioning boss 102, so that the positioning boss 102 can be plugged into the positioning groove 415, which is convenient and quick. Of course, in other embodiments, the positioning boss 102 can also be set at the bottom of the fire cover base 410, and the positioning groove 415 can be set on the mounting seat 100, which can also achieve the above effect.

[0075] Fig. 9 FIG. 8 is a schematic diagram showing the structure of the mounting base 100, the nozzle, the thermocouple 801 and the ignition needle 802 provided in this embodiment. Fig. 9 Combined with Figure 2 , Figure 8 As shown, the mounting seat 100 is provided with a first mounting post 103, the outer ring nozzle 300 is provided on the side of the first mounting post 103, and the outlet of the outer ring nozzle 300 is arranged in the horizontal direction and aligned with the inlet of the outer ring ejector 701; the mounting seat 100 is provided with a second mounting post 104, the outer ring nozzle 300 is arranged on the side of the second mounting post 104, and the outlet of the outer ring nozzle 300 is arranged in the horizontal direction and aligned with the inlet of the inner ring ejector 702. This design can prevent the soup splashed from the cooker from flowing into the inner ring nozzle 200 or the outer ring nozzle 300, causing the nozzle outlet to be blocked.

[0076] Fig.10 FIG. 2 shows a cross-sectional schematic diagram of the mounting base 100 provided in this embodiment at a viewing angle. Fig.10 Combined with Fig. 9 As shown, an outer ring air inlet main channel 107 is opened in the mounting seat 100, and an outer ring air inlet port 1071 connected with the outer ring air inlet main channel 107 is opened at the bottom of the mounting seat 100, an outer ring air inlet branch channel 1031 is opened in each first mounting column 103, and each outer ring air inlet branch channel 1031 is connected with the outer ring air inlet main channel 107, and an outer ring air outlet 1032 is also arranged on the side of each first mounting column 103, the outer ring air outlet 1032 is connected with the corresponding outer ring air inlet branch channel 1031, and an outer ring nozzle 300 is installed at each outer ring air outlet 1032.

[0077] For the convenience of processing, when processing the outer ring air inlet main flow channel 107 on the mounting seat 100, first openings are formed at both ends of the outer ring air inlet main flow channel 107. To ensure the air tightness of the outer ring air inlet main flow channel 107, a sealing steel ball 900 is installed at one of the first openings to seal the first opening, and the other first opening forms the above-mentioned outer ring air inlet port 1071. Similarly, when processing the outer ring air inlet branch flow channel 1031 on the first mounting column 103, a second opening is formed at the top of the first mounting column 103, and a sealing steel ball 900 is installed at the second opening to block the second opening, thereby ensuring that the outer ring air inlet branch flow channel 1031 has good air tightness.

[0078] Fig.11 FIG. 2 shows a cross-sectional schematic diagram of the mounting base 100 provided in this embodiment at another viewing angle. Fig.11 Combined with Fig. 9As shown, a first inner ring inlet air duct 108 is opened on the mounting seat 100, and an inner ring air inlet port 1081 connected with the first inner ring inlet air duct 108 is opened at the bottom of the mounting seat 100, a second inner ring inlet air duct 1041 is opened in the second mounting column 104, and the first inner ring inlet air duct 108 and the second inner ring inlet air duct 1041 are connected, and an inner ring air outlet 1042 is also arranged on the side of the second mounting column 104, the inner ring air outlet 1042 is connected with the second inner ring inlet air duct 1041, and an inner ring nozzle 200 is installed at the second inner ring inlet air duct 1041.

[0079] To facilitate processing, when the second inner ring inlet air flow duct 1041 is processed on the second mounting column 104, a third opening will be formed at the top of the second mounting column 104. A sealing steel ball 900 is installed at the third opening to seal the third opening, thereby ensuring that the second inner ring inlet air flow duct 1041 has good air tightness.

[0080] like Fig. 9 As shown, the mounting base 100 is also provided with an avoidance groove 109 corresponding to the outer ring air inlet 1071 to facilitate the operator to use a wrench or other tools to screw the air inlet joint at the outer ring air inlet 1071 .

[0081] Continue as Figure 7-Figure 9 As shown, the outer wall of the fire cover base 410 is provided with an anti-fouling eave 413 at the position corresponding to the outer ring nozzle 300 and the inner ring nozzle 200, so as to prevent the soup in the cooker from splashing out and flowing into the outer ring nozzle 300 or the inner ring nozzle 200 when boiling. In some embodiments, the top edge of the anti-fouling eave 413 gradually tilts downward in the direction away from the fire cover base 410, so as to guide the soup splashed on the top surface of the anti-fouling eave 413, so that it flows to the stove panel, and reduces the amount of soup accumulated on the top surface of the anti-fouling eave 413. In other embodiments, the bottom of the anti-fouling eave 413 is provided with an anti-fouling groove 4131, and the anti-fouling groove 4131 is located on the side of the corresponding nozzle away from the first inner groove 411. This design can prevent the soup splashed on the top surface of the anti-fouling eave 413 from flowing along the edge of the anti-fouling eave 413 to the bottom of the anti-fouling eave 413 and then flowing into the corresponding nozzle when the installation surface of the upper air inlet burner is uneven, causing the nozzle to be blocked. That is to say, with the above-mentioned setting method, when the installation surface of the upper air inlet burner is uneven, the soup splashed on the top surface of the anti-fouling eaves 413 flows along the edge of the anti-fouling eaves 413 to the bottom of the anti-fouling eaves 413, and can only flow to the outside of the anti-fouling groove 4131, and will not flow over the anti-fouling groove 4131 to the corresponding nozzle, thereby effectively avoiding nozzle clogging.

[0082] After the fire cover base 410 and the mounting seat 100 are assembled, the positioning boss 102 is inserted into the positioning groove 415, and the anti-fouling eaves 413 contacts and cooperates with the corresponding mounting column (the first mounting column 103 or the second mounting column 104), thereby ensuring the stability of the fire cover base 410 and the mounting seat 100 after assembly, and the safety of use is relatively high.

[0083] Continue as Figure 8 and Fig. 9 As shown, the upper air inlet burner also includes a thermocouple 801, and a third mounting column 105 for mounting the thermocouple 801 is provided on the mounting seat 100. The thermocouple 801 has the function of sensing the flame state to ensure the safe use of the burner. The upper air inlet burner also includes an ignition needle 802, and a fourth mounting column 106 for mounting the ignition needle 802 is provided on the mounting seat 100. The ignition needle 802 is used to ignite the gas and can ensure its combustion stability. Among them, the thermocouple 801 and the ignition needle 802 are both relatively mature structures in the prior art, and the specific structure and working principle of the thermocouple 801 and the ignition needle 802 are not repeated in this embodiment.

[0084] Optionally, the burner body is further provided with a first positioning hole 416 matched with the third mounting column 105 and a second positioning hole 417 matched with the fourth mounting column 106; at least one of the first positioning hole 416 and the second positioning hole 417 is a non-circular hole, and this design can play a good fool-proof role to further ensure the precise installation of the mounting base 100 and the burner body. In this embodiment, the first positioning hole 416 and the second positioning hole 417 are both opened on the fire cover base 410. It should be explained that the non-circular hole can be a polygonal hole with a cross-sectional shape such as a triangle or a hexagon, or a regular figure with a cross-sectional shape formed by alternating straight lines and curves, or an irregular figure formed by straight lines and curves, or a regular or irregular figure formed by curves and curves.

[0085] Combine the following Figure 1-Figure 11 Briefly describe the direction of the outer ring gas and the inner ring gas in the upward air inlet burner:

[0086] 1) The direction of the outer ring gas (refer to Figure 2 The hollow arrow points to: outer ring air inlet 1071 - outer ring air inlet main flow channel 107 - each outer ring air inlet branch flow channel 1031 - corresponding outer ring air outlet 1032 - corresponding outer ring nozzle 300 - corresponding outer ring ejector 701 - mixing chamber 4003 - evenly divided into multiple outer ring gas channels 4004 - outer ring cavity 4002 - outer ring fire outlet 601.

[0087] 2) Inner ring gas flow (refer to Figure 2The solid arrows point to: inner ring air inlet 1081 - first inner ring inlet flow channel 108 - second inner ring inlet flow channel 1041 - inner ring air outlet 1042 - inner ring nozzle 200 - inner ring ejector 702 - inner ring cavity 4001 - inner ring fire outlet 501.

[0088] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An upward air inlet burner, characterized in that: include: Mounting seat (100); An outer ring nozzle (300) is mounted on the mounting seat (100); A burner body is arranged on the mounting seat (100), wherein a mixing chamber (4003) and an outer ring chamber (4002) arranged circumferentially around the mixing chamber (4003) are arranged in the burner body, wherein the outer ring chamber (4002) is connected to an outer ring fire outlet hole (601); a plurality of outer ring gas channels (4004) are also arranged between the mixing chamber (4003) and the outer ring chamber (4002), wherein the plurality of outer ring gas channels (4004) are evenly spaced along the circumference of the mixing chamber (4003), and both ends of each outer ring gas channel (4004) are connected to the outer ring chamber (4002) and the mixing chamber (4003), and an outlet of the outer ring nozzle (300) is connected to the mixing chamber (4003) via an outer ring ejector (701).

2. The upward air inlet burner according to claim 1, characterized in that: The upper air inlet burner further comprises an inner ring nozzle (200), and the inner ring nozzle (200) is mounted on the mounting seat (100); An inner ring cavity (4001) is also provided in the burner body, the mixing cavity (4003) is arranged outside the inner ring cavity (4001), and the mixing cavity (4003) is not connected to the inner ring cavity (4001), the inner ring cavity (4001) is connected to an inner ring fire outlet hole (501), and the outlet of the inner ring nozzle (200) is connected to the inner ring cavity (4001) through an inner ring ejector (702).

3. The upward air inlet burner according to claim 2, characterized in that: The number of the outer ring nozzles (300) is at least two, each of the outer ring nozzles (300) corresponds to one outer ring ejector (701), and the inner ring ejector (702) and at least two outer ring ejectors (701) are evenly spaced along the circumference of the mixing chamber (4003).

4. The upward air inlet burner according to claim 2, characterized in that: The burner body comprises: A fire cover seat assembly (400) is arranged on the mounting seat (100), wherein a central groove and an outer ring groove arranged around the central groove are formed in the fire cover seat assembly (400); An inner ring fire cover (500) is connected to the fire cover seat assembly (400) and closes the top opening of the central groove, and the inner ring fire cover (500) and the central groove are arranged to form the inner ring cavity (4001), and the inner ring fire outlet hole (501) is opened at the top of the inner ring fire cover (500); The outer ring fire cover (600) is connected to the fire cover seat assembly (400) and closes the top opening of the outer ring groove. The outer ring fire cover (600) and the outer ring groove are arranged to form the outer ring cavity (4002). The outer ring fire outlet hole (601) is opened at the top of the outer ring fire cover (600).

5. The upward air inlet burner according to claim 4, characterized in that: The fire cover seat assembly (400) comprises: A fire cover upper cover (420), wherein a center ring (421) is protruded downward at the center of the fire cover upper cover (420), and a mixing annular groove (422) and a plurality of sub-grooves (423) are also provided at the bottom of the fire cover upper cover (420), wherein the mixing annular groove (422) is arranged around the outer periphery of the center ring (421), and the plurality of sub-grooves (423) are arranged at intervals along the circumference of the mixing annular groove (422) and are all connected to the mixing annular groove (422); A fire cover base (410), wherein the fire cover base (410) is provided with a first inner groove (411) and a second inner groove (412) arranged outside the first inner groove (411); the fire cover base (410) is sleeved outside the fire cover upper cover (420), and the center ring (421) cooperates with the first inner groove (411) to form the center groove, the outer ring groove is formed between the inner wall of the fire cover base (410) and the outer wall of the fire cover upper cover (420), the mixing ring groove (422) cooperates with the second inner groove (412) to form the mixing chamber (4003), and the sub-groove (423) cooperates with the inner bottom wall of the fire cover base (410) to form the outer ring gas channel (4004).

6. The upward air inlet burner according to claim 5, characterized in that: Anti-fouling eaves (413) are protrudingly provided on the outer side wall of the fire cover base (410) at positions corresponding to the outer ring nozzle (300) and the inner ring nozzle (200).

7. The upward air inlet burner according to claim 6, characterized in that: The top edge of the anti-fouling eaves (413) gradually slopes downward in a direction away from the fire cover base (410); and / or An anti-fouling groove (4131) is provided at the bottom of the anti-fouling eaves (413), and the anti-fouling groove (4131) is located on the side of the corresponding nozzle away from the first inner groove (411).

8. The upward air inlet burner according to claim 5, characterized in that: The fire cover seat assembly (400) is provided with a secondary air inlet (4005) penetrating the fire cover upper cover (420) and the fire cover base (410).

9. The upward air inlet burner according to claim 8, characterized in that: The number of the secondary air inlets (4005) is multiple, and the multiple secondary air inlets (4005) are arranged at intervals along the circumference of the fire cover seat assembly (400), and a shielding member (414) for shielding the mounting hole (101) on the mounting seat (100) is formed between two adjacent secondary air inlets (4005).

10. The upward air inlet burner according to claim 5, characterized in that: The outer ring ejector (701) and the inner ring ejector (702) are both integrated at the bottom of the fire cover base (410).

11. The upward air inlet burner according to claim 5, characterized in that: A positioning groove (415) is provided on the bottom of the fire cover base (410) and one of the mounting seat (100), and a positioning boss (102) matching with the positioning groove (415) is provided on the other.

12. The upward air inlet burner according to claim 2, characterized in that: The mounting seat (100) is provided with a first mounting column (103), the outer ring nozzle (300) is arranged on a side of the first mounting column (103), and the outlet of the outer ring nozzle (300) is arranged in a horizontal direction and aligned with the inlet of the outer ring ejector (701); and / or A second mounting column (104) is arranged on the mounting seat (100), the outer ring nozzle (300) is arranged on the side of the second mounting column (104), and the outlet of the outer ring nozzle (300) is arranged in a horizontal direction and aligned with the inlet of the inner ring ejector (702).

13. The upward air inlet burner according to any one of claims 1 to 12, characterized in that: The upper air inlet burner further comprises a thermocouple (801), and the mounting seat (100) is provided with a third mounting column (105) for mounting the thermocouple (801); and / or The upper air inlet burner further comprises an ignition needle (802), and the mounting seat (100) is provided with a fourth mounting column (106) for mounting the ignition needle (802).

14. The upward air inlet burner according to claim 13, characterized in that: The burner body is also provided with a first positioning hole (416) matching with the third mounting column (105) and a second positioning hole (417) matching with the fourth mounting column (106); at least one of the first positioning hole (416) and the second positioning hole (417) is a non-circular hole.

15. A cooking appliance, characterized in that: The invention comprises a bottom shell and an upper air inlet burner as claimed in any one of claims 1 to 14, wherein the upper air inlet burner is mounted on the bottom shell.

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