Combustor and gas stove

Abstract

The utility model belongs to the technical field of kitchen utensils, and discloses a burner and a gas stove. The gas stove comprises a combustor, the combustor comprises a fire distributor and an outer ring fire cover, the fire distributor comprises a fire cover seat and a flow dividing cover arranged on the inner side of the fire cover seat, and the fire cover seat is connected with the flow dividing cover through a first fastener; the outer ring fire cover is buckled between the outer edge of the flow dividing cover and the outer edge of the fire cover base so as to jointly define an outer ring gas mixing cavity, the outer ring fire cover and the flow dividing cover are connected through a second fastening piece, and the first fastening piece and the second fastening piece are partially located in the outer ring gas mixing cavity and distributed in the circumferential direction of the outer ring gas mixing cavity at intervals. According to the burner provided by the utility model, the blocking area of the fastening piece to the outer ring gas mixing cavity can be reduced, the gas circulation resistance is reduced, the uniformity of flames is ensured, and the use experience feeling of a user is improved.

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 is a kitchen appliance required for cooking in daily family life. The gas stove includes a burner, which usually includes a flame distributor and an outer ring fire cover. The outer ring fire cover is buckled on the flame distributor to form an outer ring gas mixing chamber. The flame distributor includes a fire cover seat and a diverter cover arranged on the inner side of the fire cover seat. In the prior art, the same fastener, such as a screw, is usually used to achieve the fastening connection between the fire cover seat, the diverter cover and the outer ring fire cover. That is to say, along the axial direction of the burner, the fastener is sequentially passed through the fire cover seat, the diverter cover and the outer ring fire cover from bottom to top, thereby fixing the three together. Under this assembly method, the fastener axially passes through the outer ring gas mixing chamber, so the fastener has a larger blocking area for the outer ring gas mixing chamber, which increases the gas flow resistance, resulting in uneven flames and affecting the user experience.

[0003] Therefore, it is urgent to provide a burner and a gas stove to solve the above problems. Utility Model Content

[0004] One purpose of the present utility model is to provide a burner that can reduce the obstruction area of ​​the outer ring gas mixing cavity caused by the fasteners and improve the flame uniformity.

[0005] Another object of the present invention is to provide a gas stove that can improve the uniformity of the flame by providing the above-mentioned burner, thereby enhancing the user experience.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Burner, including:

[0008] The fire distributor comprises a fire cover seat and a diverter cover arranged inside the fire cover seat, wherein the fire cover seat and the diverter cover are connected by a first fastener;

[0009] The outer ring fire cover is buckled between the outer edge of the diverter cover and the outer edge of the fire cover seat to jointly enclose an outer ring air mixing chamber. The outer ring fire cover and the diverter cover are connected by a second fastener. The first fastener and the second fastener are both partially located in the outer ring air mixing chamber and are arranged at intervals in the circumferential direction of the outer ring air mixing chamber.

[0010] As an optional solution, there is a distance between one end of the first fastener located in the outer ring mixing chamber and the outer ring fire cover, and there is a distance between one end of the second fastener located in the outer ring mixing chamber and the fire cover seat.

[0011] As an optional solution, a first connecting column is protruding from the fire cover seat, and a second connecting column is protruding from the outer edge of the diverter cover near the fire cover seat. The first connecting column and the second connecting column are both located in the outer ring gas mixing chamber. A first connecting hole is formed on the first connecting column, and a second connecting hole is formed on the second connecting column. The first fastener passes through the first connecting hole and the second connecting hole in sequence to fasten the fire cover seat to the diverter cover.

[0012] And / or, a connecting lug is protruding from the outer edge of the diverter cover, and the connecting lug is located in the outer ring mixing chamber. A third connecting hole is provided on the connecting lug, and a fourth connecting hole is provided at a position of the outer ring fire cover corresponding to the third connecting hole. The second fastener passes through the third connecting hole and the fourth connecting hole in sequence to fasten the diverter cover to the outer ring fire cover.

[0013] As an optional solution, a first countersunk hole is provided at one end of the first connecting hole away from the second connecting hole, and the head of the first fastener is embedded in the first countersunk hole;

[0014] And / or, a second countersunk hole is provided at one end of the third connecting hole away from the fourth connecting hole, and the head of the second fastener is embedded in the second countersunk hole.

[0015] As an optional solution, a reinforcing rib is connected between the peripheral side of the second connecting column and the diverter cover.

[0016] As an optional solution, a plurality of outer ring gas channels are formed between the fire cover seat and the diverter cover, and the plurality of outer ring gas channels are evenly arranged along the circumference of the outer ring gas mixing cavity and are all connected to the outer ring gas mixing cavity.

[0017] As an optional solution, the first connecting column and the second connecting column are arranged facing the opening of the outer ring gas channel;

[0018] And / or, a fire avoidance hole is provided on the side wall of the outer ring fire cover, and the fire avoidance hole is arranged opposite to the second connecting column.

[0019] As an optional solution, the first connecting column and the second connecting column are provided in multiple and arranged in one-to-one correspondence, the number of the connecting lugs is also set to multiple, and the second connecting column and the connecting lugs are alternately and evenly arranged in sequence along the circumference of the diverter cover.

[0020] As an optional solution, a first inner ring portion is protruding from the center of one side of the fire cover seat close to the diverter cover, and a second inner ring portion is protruding from the center of one side of the diverter cover close to the fire cover seat. An outwardly protruding annular boss is provided on the outer circumferential surface of the second inner ring portion, and the second inner ring portion is inserted into the first inner ring portion, and the end face of the first inner ring portion abuts against the annular boss.

[0021] A gas stove comprising the burner mentioned above.

[0022] Beneficial effects of the utility model:

[0023] The utility model provides a burner, in which the fire cover seat and the diverter cover are fastened together by a first fastener, and the outer ring fire cover and the diverter cover are fastened together by a second fastener, that is, the fire cover seat and the outer ring fire cover are respectively assembled with the diverter cover, and during assembly, the first fastener passes through the fire cover seat and the diverter cover, and the second fastener passes through the outer ring fire cover and the diverter cover, and the first fastener and the second fastener are staggered in the circumferential direction, so that it can be ensured that the first fastener will not completely block the outer ring mixing chamber in the axial direction, and the second fastener will not completely block the outer ring mixing chamber in the axial direction, thereby reducing the blocking area of ​​the outer ring mixing chamber by the fastener, reducing the gas flow resistance, ensuring the uniformity of the flame, and improving the user experience.

[0024] The utility model also provides a gas stove, which can improve the uniformity of the flame by arranging the above-mentioned burner, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of the burner provided by the utility model;

[0026] Figure 2 This is a cross-sectional view of the burner provided by the utility model Figure 1 ;

[0027] Figure 3 This is a cross-sectional view of the burner provided by the utility model Figure 2 ;

[0028] Figure 4 This is an exploded view of the burner provided by the utility model;

[0029] Figure 5 It is a structural diagram of the fire distributor provided by the utility model;

[0030] Figure 6 It is a schematic diagram of the cooperation between the outer ring fire cover and the diversion cover provided by the utility model.

[0031] In the picture:

[0032] 10. Ignition distributor; 11. Fire cover base; 111. First connecting post; 1111. First connecting hole; 1112. First countersunk hole; 112. First outer ring air inlet groove; 113. First inner ring portion; 12. Diverter cover; 121. Second connecting post; 1211. Second connecting hole; 122. Reinforcement rib; 123. Connecting lug; 1231. Third connecting hole; 1232. Second countersunk hole; 124. Second outer ring air inlet groove; 125. Second inner ring portion; 126. Annular boss; 127. Inner annular wall; 128. Outer annular wall; 129. Inner annular gas mixing chamber; 13. Outer annular gas mixing chamber; 14. Outer annular gas channel;

[0033] 20. Outer ring fire cover; 21. Fire escape hole; 22. Outer ring main fire hole; 23. Fourth connecting hole;

[0034] 30. First fastener; 40. Second fastener;

[0035] 50. Center fire cover; 51. Inner ring main fire hole; 52. Shielding cap; 60. Ignition needle; 70. Thermocouple;

[0036] 80. Burner head; 81. Cylinder body; 811. Outer ring body; 812. Inner ring body; 813. Partition; 814. Outer ring gas mixing channel; 815. Inner ring gas mixing channel; 82. Outer ejector pipe; 83. Inner ejector pipe. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0038] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0041] like Figure 1 and Figure 5 As shown, this embodiment provides a burner, including a flame divider 10 and an outer ring fire cover 20. The flame divider 10 includes a fire cover seat 11 and a diverter cover 12 arranged on the inner side of the fire cover seat 11. A groove with an upward opening is formed between the outer edge of the diverter cover 12 and the outer edge of the fire cover seat 11. The outer ring fire cover 20 is buckled between the outer edge of the diverter cover 12 and the outer edge of the fire cover seat 11 to form a closed outer ring gas mixing chamber 13 together with the groove. A circle of outer ring main fire holes 22 is provided on the outer side wall of the outer ring fire cover 20. The outer ring main fire holes 22 are connected to the outer ring gas mixing chamber 13. The mixed gas enters the outer ring gas mixing chamber 13 and is then discharged from the outer ring main fire holes 22 and burns to form an outer ring flame.

[0042] In the prior art, the same fastener is usually used to achieve the fastening connection between the fire cover seat 11, the diverter cover 12 and the outer ring fire cover 20. That is to say, along the axial direction of the burner, the fastener is sequentially passed through the fire cover seat 11, the diverter cover 12 and the outer ring fire cover 20 from bottom to top, thereby fixing the three together. Under this assembly method, the fastener axially passes through the outer ring mixing chamber 13, so the fastener has a larger blocking area for the outer ring mixing chamber 13, which increases the gas flow resistance, resulting in uneven flames and affecting the user experience.

[0043] In order to solve the above problems, Figure 2 and Figure 3As shown, the fire cover seat 11 is connected to the diverter cover 12 by a first fastener 30; the outer ring fire cover 20 is connected to the diverter cover 12 by a second fastener 40, and the first fastener 30 and the second fastener 40 are both partially located in the outer ring mixing chamber 13 and are arranged at intervals in the circumferential direction of the outer ring mixing chamber 13. That is to say, the fire cover seat 11 and the outer ring fire cover 20 are assembled with the diverter cover 12 respectively. During assembly, the first fastener 30 penetrates the fire cover seat 11 and the diverter cover 12 in sequence from bottom to top, and the second fastener 40 penetrates the outer ring fire cover 20 and the diverter cover 12 in sequence from bottom to top, and the first fastener 30 and the second fastener 40 are staggered in the circumferential direction, so it can be ensured that the first fastener 30 will not completely block the outer ring mixing chamber 13 in the axial direction, and the second fastener 40 will not completely block the outer ring mixing chamber 13 in the axial direction, thereby reducing the blocking area of ​​the fastener to the outer ring mixing chamber 13, reducing the gas flow resistance, ensuring the uniformity of the flame, and improving the user experience.

[0044] Specifically, if Figure 2 As shown, there is a certain distance between one end (top end) of the first fastener 30 located in the outer ring mixing chamber 13 and the outer ring fire cover 20, so that the first fastener 30 does not completely block the outer ring mixing chamber 13 in the axial direction; Figure 3 As shown, there is also a certain distance between one end (bottom end) of the second fastener 40 located in the outer ring mixing chamber 13 and the fire cover seat 11, so that the second fastener 40 will not completely block the outer ring mixing chamber 13 in the axial direction, thereby reducing the blocking area of ​​the fastener on the outer ring mixing chamber 13.

[0045] In an optional embodiment, in combination Figure 2 、 Figure 4 and Figure 5 , a first connecting column 111 is protruded from the fire cover seat 11, and a second connecting column 121 is protruded from the outer edge of the diverter cover 12 near the fire cover seat 11. The first connecting column 111 and the second connecting column 121 are both located in the outer ring gas mixing chamber 13, and the second connecting column 121 is stacked on the upper side of the first connecting column 111. A first connecting hole 1111 is provided on the first connecting column 111, and a second connecting hole 1211 is provided on the second connecting column 121 that is opposite to the first connecting hole 1111. The first fastener 30 sequentially penetrates the first connecting hole 1111 and the second connecting hole 1211 from bottom to top to fasten the fire cover seat 11 and the diverter cover 12 together to ensure the reliability of the connection between the two. Figure 2 It can be seen that after the first fastener 30 is installed, the end of the first fastener 30 does not pass through the second connecting column 121, but is hidden in the second connecting hole 1211 to reduce the blocking area of ​​the first fastener 30 on the outer ring mixing chamber 13.

[0046] In this embodiment, the first fastener 30 is a screw, the first connection hole 1111 is a plain hole with a diameter slightly larger than the outer diameter of the screw, and the second connection hole 1211 is a threaded hole. The screw passes through the plain hole and is threadedly connected to the threaded hole to ensure a reliable connection between the fire cover base 11 and the diverter cover 12. In another optional embodiment, the first fastener 30 can also be a rivet, and the first connection hole 1111 and the second connection hole 1211 can also be riveted holes, which are not specifically limited here.

[0047] In an optional embodiment, in combination Figure 2 and Figure 4 As shown, a first countersunk hole 1112 is provided at one end of the first connection hole 1111 away from the second connection hole 1211, and the head of the first fastener 30 is embedded in the first countersunk hole 1112. By providing the first countersunk hole 1112, the head of the first fastener 30 can be hidden in the first countersunk hole 1112, preventing the head of the first fastener 30 from protruding from the surface of the fire cover base 11, thereby ensuring the aesthetics of the product.

[0048] In an optional embodiment, if Figure 6 As shown, a reinforcing rib 122 is connected between the circumference of the second connecting column 121 and the diverter cover 12. The reinforcing rib 122 can increase the structural strength of the second connecting column 121 and prevent the second connecting column 121 from deformation.

[0049] In an optional embodiment, reference Figure 3 and Figure 4 The outer edge of the diverter cover 12 is also provided with a connecting lug 123, which is located in the outer ring mixing chamber 13 and is spaced apart from the second connecting column 121. A third connecting hole 1231 is provided on the connecting lug 123, and a fourth connecting hole 23 is provided at a position corresponding to the third connecting hole 1231 of the outer ring fire cover 20. The second fastener 40 is sequentially passed through the third connecting hole 1231 and the fourth connecting hole 23 to fasten the diverter cover 12 to the outer ring fire cover 20 to ensure the reliability of the connection between the two.

[0050] In this embodiment, the second fastener 40 is a screw, the third connection hole 1231 is a smooth hole with a diameter slightly larger than the outer diameter of the screw, and the fourth connection hole 23 is a threaded hole. The screw passes through the smooth hole and is threadedly connected to the threaded hole to ensure the reliability of the connection between the diverter cover 12 and the outer ring fire cover 20. In another optional embodiment, the second fastener 40 can also be a rivet, and the third connection hole 1231 and the fourth connection hole 23 can also be riveted holes, which are not specifically limited here.

[0051] In an optional embodiment, if Figure 3 and 6As shown, a second countersunk hole 1232 is provided at one end of the third connection hole 1231 away from the fourth connection hole 23, and the head of the second fastener 40 is embedded in the second countersunk hole 1232. By providing the second countersunk hole 1232, the head of the second fastener 40 can be hidden in the second countersunk hole 1232, preventing the head of the second fastener 40 from protruding from the surface of the diverter cover 12, thereby further reducing the blocking area of ​​the outer ring gas mixing chamber 13 by the second fastener 40.

[0052] In this embodiment, if Figures 4 to 6 As shown, there are four first connecting columns 111, which are evenly spaced along the circumference of the fire cover base 11. There are also four second connecting columns 121, which correspond one-to-one with the first connecting columns 111. Each group of first connecting columns 111 and second connecting columns 121 is respectively penetrated by a first fastener 30. The number of connecting lugs 123 is also set to four, and the second connecting columns 121 and the connecting lugs 123 are alternately and evenly arranged along the circumference of the diverter cover 12. Correspondingly, the outer ring fire cover 20 is provided with four evenly distributed fourth connecting holes 23, which are arranged one-to-one with the connecting lugs 123. Each group of connecting lugs 123 and fourth connecting holes 23 is respectively penetrated by a second fastener 40.

[0053] That is, in this embodiment, the fire cover seat 11 and the diverter cover 12 are connected by four evenly spaced first fasteners 30, and the diverter cover 12 is connected to the outer ring fire cover 20 by four evenly spaced second fasteners 40. This improves the reliability of the connection and prevents problems such as poor sealing and fire leakage. In other embodiments, the number of first connecting posts 111, second connecting posts 121, connecting lugs 123, and fourth connecting holes 23 can also be set to other numbers, which are not specifically limited here.

[0054] In an optional embodiment, if Figure 5 As shown, four outer ring gas channels 14 are formed between the fire cover seat 11 and the diverter cover 12. The four outer ring gas channels 14 are evenly spaced along the circumference of the outer ring gas mixing chamber 13 and are all connected to the outer ring gas mixing chamber 13. Four groups of first connecting columns 111 and second connecting columns 121 are provided in a one-to-one correspondence with the four outer ring gas channels 14. The mixed gas is diverted through the four outer ring gas channels 14 and then enters the outer ring gas mixing chamber 13. This channel diversion improves the uniformity of the gas distribution and thus optimizes the state of flame combustion. In other embodiments, the outer ring gas channels 14 can be set to another number, as long as the number is the same as the number of first connecting columns 111 and second connecting columns 121.

[0055] Specifically, if Figure 4 As shown, the fire cover seat 11 is a circular bowl-shaped structure, and the fire cover seat 11 is concavely provided with four evenly arranged first outer ring air intake grooves 112, as shown in FIG. Figure 6As shown, the diverter cover 12 is provided with four evenly arranged second outer ring air inlet grooves 124 on one side close to the fire cover seat 11. When the diverter cover 12 is assembled on the inner side of the fire cover seat 11, the openings of the first outer ring air inlet groove 112 and the second outer ring air inlet groove 124 are relative and fit together to form the above-mentioned outer ring gas channel 14.

[0056] In an optional implementation, Figure 5 As shown, the first connecting column 111 and the second connecting column 121 are arranged directly opposite the opening of the outer ring gas channel 14. Figure 4 As shown, the first connecting column 111 is arranged opposite to the opening of the first outer ring air inlet groove 112, as shown in FIG. Figure 6 As shown, the second connecting column 121 is positioned directly opposite the opening of the second outer ring air inlet groove 124. The outer ring's mixed gas undergoes a primary diversion through the four outer ring gas channels 14. When it approaches the outer ring gas mixing chamber 13, it undergoes a secondary diversion through the corresponding first and second connecting columns 111, 121, and flows into the outer ring gas mixing chamber 13. Ultimately, the mixed gas is evenly distributed at the outer ring main flame hole 22. Therefore, this arrangement further improves gas distribution uniformity, resulting in a more uniform flame.

[0057] In an optional embodiment, if Figure 6 As shown, the sidewall of the outer ring fire cover 20 is also provided with four evenly distributed fire avoidance holes 21. Each fire avoidance hole 21 is arranged opposite a corresponding second connecting column 121. In other words, the second connecting column 121 is located between the fire avoidance hole 21 and the opening of the outer ring gas channel 14. The lugs of the pot rack are above the fire avoidance holes 21. The fire avoidance holes 21 have a smaller aperture, allowing less gas to pass through. This can reduce the flame and prevent the flame from burning the pot rack, causing the pot rack to become enamel-less and rusty. By arranging the fire avoidance holes 21 opposite the second connecting column 121, the second connecting column 121 can block the fire avoidance holes 21, effectively reducing the impact of the fire avoidance holes 21 on the gas uniformity within the outer ring gas channel 14, making the flame more uniform. At the same time, it reduces the amount of gas at the fire avoidance holes 21 and prevents the second connecting column 121 from directly facing the outer ring main fire hole 22 and affecting the flame combustion of the outer ring main fire hole 22.

[0058] In an optional embodiment, if Figure 5 As shown, the width of the outer ring gas channel 14 gradually increases in the direction away from the axis of the fire cover seat 11. The outer ring gas channel 14 adopts a gradually expanding structural design, which can reduce the pressure of the gas when passing through the outer ring gas channel 14 and enhance its flow capacity.

[0059] In an optional embodiment, if Figure 2 、 Figure 4 and Figure 6As shown, a first inner ring portion 113 is protruded from the center of one side of the fire cover seat 11 near the diverter cover 12, and a second inner ring portion 125 is protruded from the center of one side of the diverter cover 12 near the fire cover seat 11. An outwardly protruding annular boss 126 is provided on the outer circumferential surface of the second inner ring portion 125. The second inner ring portion 125 is inserted into the first inner ring portion 113, and the end face of the first inner ring portion 113 abuts on the annular boss 126. The inner diameter of the first inner ring portion 113 matches the outer diameter of the second inner ring portion 125. After installation, the second inner ring portion 125 is inserted into the first inner ring portion 113 to achieve the positioning and installation of the diverter cover 12 and the fire cover seat 11. At the same time, the end face of the first inner ring portion 113 abuts on the annular boss 126 to achieve end face sealing and ensure that gas will not leak.

[0060] like Figure 5 As shown, an inner annular wall 127 and an outer annular wall 128 are convexly provided at the center of the diverter cover 12. The outer annular wall 128 is arranged around the outer periphery of the inner annular wall 127 and defines an inner annular mixing chamber 129 with an upper end opening together with the inner annular wall 127. Figure 2 As shown, the burner also includes a central flame cover 50, which is buckled between the inner annular wall 127 and the outer annular wall 128 to form a closed inner annular gas mixing chamber 129. A circle of inner annular main flame holes 51 is provided on the outer wall of the central flame cover 50. The inner annular main flame holes 51 are connected to the inner annular gas mixing chamber 129. The mixed gas enters the inner annular gas mixing chamber 129, is discharged from the inner annular main flame holes 51, and then burns to form an inner annular flame.

[0061] like Figure 1 and Figure 4 As shown, the burner also includes a burner head 80, an ignition needle 60 and a thermocouple 70. The fire cover seat 11 is arranged on the burner head 80. The ignition needle 60 and the thermocouple 70 are also arranged on the burner head 80. The ignition needle 60 and the thermocouple 70 are arranged adjacent to each other and are both located between the outer ring fire cover 20 and the center fire cover 50. The side wall of the center fire cover 50 is provided with an ignition hole, which is connected to the inner ring main fire hole 51. The ignition needle 60 and the thermocouple 70 are respectively arranged opposite to the ignition hole. During ignition, the ignition needle 60 can generate sparks to ignite the mixed gas at the ignition hole. After ignition, the ignition hole is ignited first, followed by ignition of all the inner ring main fire holes 51, and finally ignition of all the outer ring main fire holes 22. Thermocouple 70 is used to detect the combustion temperature at the ignition hole. When the combustion temperature exceeds the preset range, the thermocouple 70 transmits the real-time temperature to the controller. The controller controls the gas valve to adjust the gas output in real time to ensure the stability of the combustion temperature and improve the fire protection performance.

[0062] In an optional embodiment, if Figure 1As shown, a shielding cap 52 is provided at the edge of the center fire cover 50. The shielding cap 52 is used to shield the ignition needle 60, thereby enhancing the protection effect for the ignition needle 60 and preventing the overflow from dripping onto the ignition needle 60 and causing damage and failure thereof.

[0063] like Figure 2 and Figure 4 As shown, the burner head 80 includes a barrel 81 and an outer ejector tube 82 and an inner ejector tube 83 respectively connected to the barrel 81. Specifically, the barrel 81 includes an inner ring body 812 and an outer ring body 811 arranged around the outer circumference of the inner ring body 812. A cavity is defined between the inner ring body 812 and the outer ring body 811. Two partitions 813 are connected between the inner ring body 812 and the outer ring body 811. The partitions 813 are used to divide the cavity into relatively independent outer ring gas mixing channels 814 and inner ring gas mixing channels 815. The partitions 813 are integrally formed with the inner ring body 812 and the outer ring body 811. The outer ejector tube 82 is connected to the outer ring gas mixing channel 814, and is used to introduce a mixture of gas and air into the outer ring gas mixing channel 814. The fire cover seat 11 is buckled on the cylinder 81, and the outer ring gas mixing channel 814 is connected to the outer ring gas mixing chamber 13 through the outer ring gas channel 14; the inner ejector tube 83 is connected to the inner ring gas mixing channel 815, and is used to introduce a mixture of gas and air into the inner ring gas mixing channel 815. The inner ring gas mixing channel 815 is connected to the inner ring gas mixing chamber 129.

[0064] During use, gas is sprayed into the outer injector tube 82 through the outer ring nozzle, and the gas and air are mixed in the outer ring gas mixing channel 814 to form a mixed gas. The mixed gas enters the outer ring gas mixing chamber 13 through each outer ring gas channel 14, and then is discharged from the outer ring main fire hole 22 and burns to form an outer ring flame, thereby heating the edge area of ​​the bottom of the cookware. At the same time, gas is sprayed into the inner injector tube 83 through the inner ring nozzle, and the gas and air are mixed in the inner ring gas mixing channel 815 to form a mixed gas. The mixed gas enters the inner ring gas mixing chamber 129, and then is discharged from the inner ring main fire hole 51 and burns to form an inner ring flame, thereby heating the center area of ​​the bottom of the cookware.

[0065] Among them, since the inner ring flame is smaller than the outer ring flame, the gas consumption of the inner ring flame is relatively small. Therefore, in this embodiment, the cross-sectional area of ​​the outer ring mixing channel 814 is larger than the cross-sectional area of ​​the inner ring mixing channel 815, so that the gas output of the outer ring mixing channel 814 is larger to meet the combustion requirements.

[0066] This embodiment also provides a gas stove, which mainly includes a gas valve, a gas path connecting unit and the above-mentioned burner, wherein the inlet of the gas valve is connected to the external gas supply source, and the outlet of the gas valve is connected to the inner ejection pipe 83 and the outer ejection pipe 82 of the burner respectively through the gas path connecting unit. The gas valve is used for user operation to control whether the gas enters the burner for combustion, and to control the amount of gas entering the burner, so that the burner can cook the pot in different modes. Among them, the specific structure and working principle of the gas stove are existing technologies and will not be elaborated here. The gas stove provided in this embodiment can improve the uniformity of the flame by setting the above-mentioned burner, thereby improving the user experience.

[0067] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A burner, characterized in that include: A fire distributor (10) comprises a fire cover seat (11) and a diverter cover (12) arranged inside the fire cover seat (11), wherein the fire cover seat (11) and the diverter cover (12) are connected via a first fastener (30); The outer ring fire cover (20) is buckled between the outer edge of the diverter cover (12) and the outer edge of the fire cover seat (11) to jointly enclose and form an outer ring gas mixing chamber (13); the outer ring fire cover (20) and the diverter cover (12) are connected via a second fastener (40); the first fastener (30) and the second fastener (40) are both partially located in the outer ring gas mixing chamber (13) and are spaced apart in the circumferential direction of the outer ring gas mixing chamber (13).

2. The burner according to claim 1, characterized in that There is a distance between one end of the first fastener (30) located in the outer ring gas mixing chamber (13) and the outer ring fire cover (20), and there is a distance between one end of the second fastener (40) located in the outer ring gas mixing chamber (13) and the fire cover seat (11).

3. The burner according to claim 1, characterized in that A first connecting column (111) is protruded from the fire cover seat (11), and a second connecting column (121) is protruded from the outer edge of the diverter cover (12) near the fire cover seat (11). The first connecting column (111) and the second connecting column (121) are both located in the outer ring gas mixing chamber (13). A first connecting hole (1111) is provided on the first connecting column (111), and a second connecting hole (1211) is provided on the second connecting column (121). The first fastener (30) is sequentially passed through the first connecting hole (1111) and the second connecting hole (1211) to fasten the fire cover seat (11) to the diverter cover (12); And / or, a connecting lug (123) is protruding from the outer edge of the diverter cover (12), the connecting lug (123) is located in the outer ring mixing chamber (13), a third connecting hole (1231) is provided on the connecting lug (123), a fourth connecting hole (23) is provided at a position corresponding to the third connecting hole (1231) of the outer ring fire cover (20), and the second fastener (40) is sequentially passed through the third connecting hole (1231) and the fourth connecting hole (23) to fasten the diverter cover (12) to the outer ring fire cover (20).

4. The burner according to claim 3, characterized in that A first countersunk hole (1112) is provided at one end of the first connecting hole (1111) away from the second connecting hole (1211), and the head of the first fastener (30) is embedded in the first countersunk hole (1112); And / or, a second countersunk hole (1232) is provided at one end of the third connecting hole (1231) away from the fourth connecting hole (23), and the head of the second fastener (40) is embedded in the second countersunk hole (1232).

5. The burner according to claim 3, characterized in that A reinforcing rib (122) is connected between the circumferential side of the second connecting column (121) and the diversion cover (12).

6. The burner according to claim 3, characterized in that A plurality of outer ring gas channels (14) are formed between the fire cover seat (11) and the diverter cover (12), and the plurality of outer ring gas channels (14) are evenly spaced along the circumference of the outer ring gas mixing cavity (13) and are all connected to the outer ring gas mixing cavity (13).

7. The burner according to claim 6, characterized in that The first connecting column (111) and the second connecting column (121) are arranged facing the opening of the outer ring gas channel (14); And / or, a fire avoidance hole (21) is provided on the side wall of the outer ring fire cover (20), and the fire avoidance hole (21) is arranged opposite to the second connecting column (121).

8. The burner according to any one of claims 3 to 7, characterized in that: The first connecting column (111) and the second connecting column (121) are both provided in plurality and arranged in a one-to-one correspondence, the number of the connecting lugs (123) is also provided in plurality, and the second connecting column (121) and the connecting lugs (123) are alternately and evenly arranged in sequence along the circumference of the diverter cover (12).

9. The burner according to any one of claims 1 to 7, characterized in that: A first inner ring portion (113) is convexly provided at the center of one side of the fire cover seat (11) close to the diverter cover (12), and a second inner ring portion (125) is convexly provided at the center of one side of the diverter cover (12) close to the fire cover seat (11). An outwardly protruding annular boss (126) is provided on the outer circumferential surface of the second inner ring portion (125). The second inner ring portion (125) is inserted into the first inner ring portion (113), and the end surface of the first inner ring portion (113) abuts against the annular boss (126).

10. A gas stove, characterized in that: Comprising the burner according to any one of claims 1 to 9.

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