Burner Assemblies, Burners and Gas Hobs

Abstract

The present invention discloses a burner assembly, a burner and a gas stove, wherein the burner assembly comprises a burner, the burner has a universal air inlet passage and a central through hole, the burner is provided with a first detachable installation position for detachably connecting with a detachable ejector tube; when the detachable ejector tube is installed on the burner, the detachable ejector tube is detachably connected to the first detachable installation position so that the detachable ejector tube is connected with the central through hole. Thus, the burner in the present invention can be commonly used for a two-ring fire burner and a three-ring fire burner.

Description

Technical Field

[0001] The invention relates to the technical field of stoves, and in particular to a stove head assembly, a burner and a gas stove. Background Art

[0002] At present, burners are roughly divided into two-ring fire burners and three-ring fire burners, but the specifications of the burners of these two burners are different, and different molds need to be designed for their respective production, which results in high production costs. Summary of the invention

[0003] The main purpose of the present invention is to provide a burner head assembly, aiming to provide a burner head universal for a double-ring fire burner and a triple-ring fire burner.

[0004] To achieve the above object, the present invention provides a burner head assembly, the burner head assembly comprising a burner head, the burner head having a universal air inlet passage and a central through hole, the burner head being provided with a first detachable mounting position for detachably connecting with a detachable ejector tube;

[0005] When the detachable ejector tube is installed on the furnace head, the detachable ejector tube is detachably connected to the first detachable installation position so that the detachable ejector tube is communicated with the central through hole.

[0006] Optionally, the first detachable mounting position is a threaded mounting position or a snap-on mounting position.

[0007] Optionally, the first detachable mounting position is arranged at the bottom of the furnace head.

[0008] Optionally, the first detachable mounting position includes a plurality of first mounting holes provided at the bottom of the furnace head, and the first mounting holes are threaded holes for mounting the detachable ejector tube.

[0009] Optionally, a plurality of mounting protrusions are provided at the bottom of the furnace head, and the plurality of mounting protrusions are distributed at intervals along the circumference of the central through hole; and the first mounting hole is provided on each of the mounting protrusions.

[0010] Optionally, the furnace head assembly further comprises a detachable ejector tube, and the detachable ejector tube comprises a plurality of connecting lugs;

[0011] When the detachable ejector tube is installed on the furnace head, the plurality of connecting lugs are arranged in one-to-one correspondence with the plurality of mounting protrusions, and a first connecting hole is provided on the connecting lug, and the first connecting hole is connected to the first mounting hole by a screw.

[0012] Optionally, the furnace head includes a first ejector pipe joint, and an inner ring annular portion having an inner ring air inlet ring groove and the central through hole, the bottom portion of the inner ring annular portion protrudes downward to form an inner ring semi-ring air inlet bulge, and the first ejector pipe joint is connected to the outer side surface of the inner ring semi-ring air inlet bulge.

[0013] Optionally, the first removable mounting position is arranged at the bottom of the inner ring annular portion, and the first removable mounting position is located on one side of the inner ring semi-ring air intake convex portion.

[0014] Optionally, the furnace head assembly further comprises a detachable ejector tube, wherein the detachable ejector tube comprises a vertical mounting portion and a transverse air inlet portion provided at a lower end of the vertical mounting portion;

[0015] When the detachable ejector tube is installed on the furnace head, the vertical mounting portion is installed on the bottom of the inner ring portion through the first detachable mounting position, and the lateral extension portion extends away from the inner ring portion on one side of the inner ring semi-ring air inlet convex portion.

[0016] Optionally, the number of the mounting protrusions is greater than or equal to 2 and less than or equal to 5.

[0017] Optionally, the plurality of mounting protrusions are distributed radially.

[0018] Optionally, the burner head further comprises a second detachable mounting position detachably connected to the anti-dry burning device, so that the anti-dry burning device and the detachable ejector tube can be detachably mounted on the burner head;

[0019] When the anti-dry-burning device is installed on the burner head, the anti-dry-burning device is detachably connected to the second detachable installation position so that the anti-dry-burning device is installed in the central through hole.

[0020] Optionally, the burner head also includes a first inner and outer connecting portion, and an outer ring portion having an outer ring air intake ring groove, the inner ring portion of the burner head is arranged on the inner side of the outer ring portion, and the first inner and outer connecting portion connects the inner ring portion and the outer ring portion; the second detachable mounting position is arranged on the first inner and outer connecting portion.

[0021] Optionally, the second detachable mounting position includes a second mounting hole provided on the first inner and outer connecting portion, the second mounting hole being a threaded hole for mounting the anti-dry burning device; and / or, one end of the first inner and outer connecting portion is further connected to one of the mounting protrusions of the burner head; and / or,

[0022] The other end of the first inner-outer connecting portion is connected to the outer ring semi-ring air intake convex portion.

[0023] Optionally, an extension direction of the second ejector pipe joint is the same as an extension direction of the first ejector pipe joint.

[0024] Optionally, the first removable mounting position and the second removable mounting position are the same removable mounting position.

[0025] The present invention also provides a burner, comprising the gas distribution plate as described above.

[0026] The present invention also provides a gas stove, comprising the burner as described above.

[0027] The burner head assembly of the present invention is provided with a first detachable installation position on the burner head so that the detachable ejector tube can be detachably installed on the burner head through the first detachable installation position, so that the detachable ejector tube has an assembled state in which it is installed on the burner head and connected with the central through hole, and a disassembled state in which it is disassembled, so that the same burner head can be reused on two different burners, so that the mold of the same burner head can be shared by the two different burners, thereby saving mold fees, reducing research and development costs, and thus reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram from one viewing angle when the burner of the present invention is a triple-ring fire burner;

[0030] Figure 2 for Figure 1 A schematic structural diagram of the burner from another perspective;

[0031] Figure 3 for Figure 1 A cross-sectional view of the middle burner through the center line of the detachable ejector tube;

[0032] Figure 4 for Figure 3 A schematic diagram of the local structure of the middle part of the upper end of the middle burner;

[0033] Figure 5 for Figure 1 A cross-sectional view of the middle burner through a center line of a first combustion hole;

[0034] Figure 6 For the burner head of the present invention (i.e. Figure 3 The burner or Fig.23 A schematic structural diagram of a one-view perspective of a burner in FIG.

[0035] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure of the middle furnace head;

[0036] Figure 8 for Figure 6 A structural diagram of the middle burner from another perspective;

[0037] Fig. 9 for Figure 3 Schematic diagram of the structure of the central gas plate;

[0038] Fig.10 for Fig. 9 Schematic diagram of the cross-sectional structure of the central gas disk;

[0039] Fig.11 for Figure 3 A schematic diagram of the structure of the central ring fire cover from one angle;

[0040] Fig.12 for Fig.11 A structural diagram of the central ring fire cover from another perspective;

[0041] Fig.13 for Fig.11 A cross-sectional view of the middle ring fire cover;

[0042] Fig.14 for Fig.11 A schematic diagram of the cross-sectional structure of the middle ring fire cover through a first fire hole;

[0043] Fig.15 for Figure 3 A schematic diagram of the structure of the middle and outer ring fire covers from one angle;

[0044] Fig.16 for Fig.15 Schematic diagram of the structure of the middle and outer ring fire covers from another perspective;

[0045] Fig.17 for Fig.15 Schematic diagram of the cross-sectional structure of the middle and outer ring fire covers;

[0046] Fig.18 for Figure 3 A schematic diagram of the structure of the inner ring fire cover from one angle;

[0047] Fig.19 for Fig.18 A schematic diagram of the structure of the inner ring fire cover from another perspective;

[0048] Fig. 20 for Fig.18 A cross-sectional view of the middle ring fire cover;

[0049] Fig.21It is a structural schematic diagram from one perspective when the burner of the present invention is a double-ring fire burner;

[0050] Fig. 22 for Fig.21 A schematic structural diagram of the burner from another perspective;

[0051] Fig.23 for Fig.21 A cross-sectional view of the burner through the center line of the removable ejector tube.

[0052] Description of Figure Numbers:

[0053]

[0054]

[0055] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] It should be noted that if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0058] In addition, the meaning of “and / or” appearing in the full text includes three parallel solutions. Taking “A and / or B” as an example, it includes solution A, or solution B, or a solution in which both A and B are satisfied.

[0059] The invention provides a burner, a burner assembly, a burner and a gas stove.

[0060] In a specific embodiment, the burner generally includes a burner head, a gas distribution plate and a fire cover assembly, wherein the gas distribution plate is arranged above the burner head, and the fire cover assembly is arranged above the gas distribution plate. According to the number of rings of the flame of the burner, the burner can be divided into a single-ring fire burner, a double-ring fire burner, a triple-ring fire burner and more ring fire burners, and for different types of burners, there are certain differences in the structures of the gas distribution plate and the fire cover assembly; the following will take the double-ring fire burner and the triple-ring fire burner as examples to explain in detail the structure of the burner head of the present invention. Specifically, the double-ring fire burner includes a burner head and a double-ring fire assembly, and the triple-ring fire burner includes a burner head and a triple-ring fire burner.

[0061] In one embodiment of the present invention, Figure 1-8 As shown in , and 21-23, the burner head assembly 10 includes a burner head 11 and a detachable ejector tube 18, the burner head 11 has a universal air inlet channel and a central through hole 135, and the burner head 11 is provided with a first detachable mounting position for detachably connecting with the detachable ejector tube 18.

[0062] When the detachable ejector tube 18 is installed on the furnace head 11, the detachable ejector tube 18 is detachably connected to the first detachable installation position so that the detachable ejector tube 18 is connected to the central through hole 135;

[0063] When the detachable ejector tube 18 is removed, the central through hole 135 can be used to form the secondary air passage 24 or can be left unused. When left unused, the central through hole 135 can be covered with a cover.

[0064] Specifically, if Figure 1-8 As shown, when the detachable ejector tube 18 is installed on the burner head 11, the detachable ejector tube 18 is detachably connected to the first detachable installation position so that the detachable ejector tube 18 is connected to the central through hole 135, so that the central through hole 135 and the detachable ejector tube 18 together form a central air inlet channel 1c, so that the corresponding burner 100 is a three-ring fire burner 100.

[0065] like Figure 21-23 As shown, when the detachable ejector tube 18 is removed, the central through hole 135 is used to form a secondary air passage 24, so that the corresponding burner 100 is a double-ring fire burner.

[0066] In this way, the burner head assembly 10 of the present invention is provided with a first detachable installation position on the burner head 11, so that the detachable ejector tube 18 can be detachably installed on the burner head 11 through the first detachable installation position, so that the detachable ejector tube 18 has an assembled state in which it is installed on the burner head 11 and connected with the central through hole 135, and a disassembled state in which it is disassembled so that the central through hole 135 forms a secondary air channel 24, so that the same burner head 11 can be reused on two different burners 100, so that the mold of the same burner head 11 can be shared for the two different burners 100, thereby saving mold fees, reducing research and development costs, and thus reducing production costs.

[0067] It can be understood that by adding a detachable ejector tube 18, the number of flame rings of the burner 100 can be increased, that is, when the detachable ejector tube 18 is installed on the burner head 11, the number of flame rings of the burner 100 can be increased by 1. For example, when the detachable ejector tube 18 is not installed, the burner 100 is a two-ring fire burner; when the detachable ejector tube 18 is installed, the burner 100 is a three-ring fire burner.

[0068] Among them, it can be understood that the universal air intake channel refers to the air intake channel used for air intake when the burner head 11 is reused on two different burners 100, that is, when the burner head 11 is used to form different burners, the air intake channel can be used for air intake, and its structure is basically unchanged; such as the middle ring air intake channel 1b and the outer ring air intake channel 1a mentioned below.

[0069] Furthermore, if Figure 1-8 As shown in FIGS. 21-23 , the burner head 11 also has a second detachable mounting position detachably connected to the anti-dry-burning device 70 , so that the anti-dry-burning device 70 and the detachable ejector tube 18 can be selectively detachably mounted on the burner head 11 .

[0070] When the anti-dry-burning device 70 is installed on the burner head 11 , the anti-dry-burning device 70 is detachably connected to the second detachable installation position so that the anti-dry-burning device 70 is installed in the central through hole 135 .

[0071] like Figure 21-23 As shown, when the anti-dry burning device 70 is installed on the burner head 11, the anti-dry burning device 70 is detachably connected to the second detachable installation position so that the anti-dry burning device 70 is installed in the central through hole 135. At this time, the central through hole 135 can also be used to form a secondary air channel 24, so that the corresponding burner 100 is a two-ring fire burner 100.

[0072] Specifically, the first detachable installation position and the second detachable installation position may be the same detachable installation position or different detachable installation positions. The following description will be based on the assumption that the first detachable installation position and the second detachable installation position are different detachable installation positions.

[0073] Specifically, the burner head 11 of the present invention can be commonly used in a double-ring burner 100 and a triple-ring burner 100 .

[0074] It should be pointed out that the above detachable ejector tube 18 is used to form a three-ring fire assembly, and the above anti-dry burning device 70 is used to form a two-ring fire assembly.

[0075] In other words, the present invention further provides a burner 100, comprising:

[0076] A burner head 11 having a universal air inlet passage and a central through hole 135; and

[0077] A two-ring fire assembly and a three-ring fire assembly, wherein the three-ring fire assembly includes a detachable ejector tube 18, and the two-ring fire assembly and the three-ring fire assembly are selectively detachably installed on the burner head 11, wherein when the two-ring fire assembly is installed on the burner head 11, the central through hole 135 is used to form a secondary air channel 24 or to install an anti-dry burning device 70, so that the burner 100 is a two-ring fire burner 100; when the three-ring fire assembly is installed on the burner head 11, the detachable ejector tube 18 is connected to the central through hole 135 to form a central air inlet channel 1c, so that the burner 100 is a three-ring fire burner 100.

[0078] In a specific embodiment, the first detachable installation position can be a threaded installation position, so that the detachable ejector tube 18 can be detachably installed on the burner head 11 through a threaded locking structure; the first detachable installation position can also be a clamping installation position, so that the detachable ejector tube 18 can be detachably installed on the burner head 11 through a clamping structure. In this embodiment, in order to ensure the connection strength, the first detachable installation position is a threaded installation position.

[0079] In a specific embodiment, the first detachable installation position can be set on the inner wall surface of the central through hole 135 or on the bottom of the burner head 11. In this embodiment, in order to reduce the installation difficulty of the detachable ejector tube 18 and simplify the structural design of the burner head, the first detachable installation position is set at the bottom of the burner head 11.

[0080] The structure of the first detachable installation position is described below in conjunction with other structures of the furnace head 11 .

[0081] Furthermore, as shown in the figure, the first detachable mounting position includes a plurality of first mounting holes 1321 provided at the bottom of the furnace head, and the first mounting holes 1321 are threaded holes for mounting the detachable ejector tube 18 .

[0082] In this way, setting the first detachable installation position in the form of a threaded hole can not only simplify the structure but also help to improve the connection strength.

[0083] Specifically, the detachable ejector tube 18 has a first connection hole 1831 corresponding to the first mounting hole 1321. When the detachable ejector tube 18 is mounted on the burner head 11, a screw can be passed through the first connection hole 1831 and threadedly connected to the first mounting hole 1321, thereby fixing the detachable ejector tube 18 on the burner head 11. The first connection hole 1831 can be either a threaded hole or a through hole.

[0084] Furthermore, as shown in the figure, a plurality of mounting protrusions 132 are provided at the bottom of the burner head 11 , and the plurality of mounting protrusions 132 are distributed at intervals along the circumference of the central through hole 135 ; each of the mounting protrusions 132 is provided with the first mounting hole 1321 .

[0085] In this way, by providing a mounting protrusion 132 at the bottom of the burner head 11 and providing the first mounting hole 1321 on the mounting protrusion 132, the structural strength of the first mounting hole 1321 can be enhanced without increasing the bottom wall thickness of the burner head 11 as a whole, thereby facilitating improving the installation stability of the detachable ejector tube 18.

[0086] Moreover, by distributing a plurality of mounting protrusions 132 at intervals in the circumferential direction of the central through hole 135 , the force uniformity of the detachable ejector tube 18 when it is installed on the furnace head 11 can be enhanced, thereby improving the installation stability of the detachable ejector tube 18 .

[0087] Further, as shown in the figure, the detachable ejector tube 18 includes a plurality of connecting lugs 183, and a first connecting hole 1831 is provided on the connecting lug 183. When the detachable ejector tube 18 is installed on the furnace head 11, the plurality of connecting lugs 183 and the plurality of mounting protrusions 132 are arranged one by one, and the first connecting hole 1831 is connected to the first mounting hole 1321 by screws.

[0088] Specifically, the number of the mounting protrusions 132 is greater than or equal to 2 and less than or equal to 5, such as 2 or 3.

[0089] Furthermore, if Figure 1-8 As shown in FIGS. 21-23, the plurality of mounting protrusions 132 are radially distributed. In this way, the assembly stability can be improved.

[0090] Furthermore, if Figure 1-8 As shown in , and 21-23, the furnace head 11 includes a first ejector pipe joint 12, and an inner ring annular portion 13 having an inner ring air intake ring groove 134 and a central through hole 135, the bottom portion of the inner ring annular portion 13 protrudes downward to form an inner ring semi-ring air intake bulge 131, and the first ejector pipe joint 12 is connected to the outer side surface of the inner ring semi-ring air intake bulge 131.

[0091] Specifically, the pipe of the first ejector pipe joint 12 and the inner ring air intake groove 134 form a middle ring air intake passage 1b.

[0092] In this way, by setting the inner ring semi-ring air intake bulge 131, when the gas enters the inner ring air intake groove 134, it can be diverted to both sides of the inner ring semi-ring air intake bulge 131, thereby facilitating the improvement of the uniformity of the gas in the inner ring air intake groove 134, thereby facilitating the improvement of the uniformity of the combustion.

[0093] Furthermore, if Figure 1-8 As shown in , and 21-23, the first detachable mounting position is arranged at the bottom of the inner ring annular portion 13 and is located on one side of the inner ring semi-ring air intake convex portion 131.

[0094] Specifically, the plurality of mounting protrusions 132 are disposed at the bottom of the inner ring annular portion 13 and are located on one side of the inner semi-ring air intake protrusion 131 .

[0095] In this way, by arranging the first detachable mounting position on the inner ring annular portion 13 on one side of the inner ring semi-ring air intake convex portion 131 , the vertical dimension of the burner 100 can be reduced.

[0096] Furthermore, if Figure 1-8 As shown in FIGS. 21-23 , the detachable ejector tube 18 includes a vertical mounting portion 181 and a transverse air inlet portion 182 disposed at the lower end of the vertical mounting portion 181 .

[0097] When the detachable ejector tube 18 is installed on the furnace head 11 , the vertical mounting portion 181 is installed on the bottom of the inner ring portion 13 through the first detachable mounting position, and the lateral extension portion extends on one side of the inner semi-ring air inlet protrusion 131 in a direction away from the inner ring portion 13 .

[0098] In this way, lateral gas supply can be achieved. Moreover, by extending the lateral extension portion on one side of the inner ring semi-ring air intake convex portion 131 in a direction away from the inner ring annular portion 13, it is convenient to increase the installation space of the detachable ejector tube 18, so as to avoid interference with the installation of the detachable ejector tube 18 caused by the inner ring semi-ring air intake convex portion 131 and the first ejector tube joint 12.

[0099] Specifically, Figure 1-8 As shown in , and 21-23, the plurality of connecting lugs 183 are arranged at the upper end of the circumferential surface of the vertical mounting portion 181 and are distributed at intervals along the circumferential direction.

[0100] Specifically, the bottom of the inner annular portion 13 is provided with an extended annular protrusion 133 at the periphery of the central through hole 135, and the gas outlet end of the detachable ejector pipe 18 is inserted inside the extended annular protrusion 133, so that the sealing performance can be improved.

[0101] Of course, in other embodiments, the first removable installation position may also be provided at the bottom or side of the inner ring semi-ring air intake convex portion 131, or even, the first removable installation position may also be provided at the bottom of the outer ring annular portion 15, etc.

[0102] Similarly, in a specific embodiment, the second detachable installation position can be a threaded installation position, so that the anti-dry burning device 70 can be detachably installed on the burner head 11 through a threaded locking structure; the second detachable installation position can also be a clamping installation position, so that the anti-dry burning device 70 can be detachably installed on the burner head 11 through a clamping structure. In this embodiment, in order to ensure the connection strength, the second detachable installation position is a threaded installation position.

[0103] Similarly, in a specific embodiment, the second detachable installation position can be set on the inner wall surface of the central through hole 135 or the top of the burner head 11, or can be set at the bottom of the burner head 11. In this embodiment, in order to reduce the difficulty of installing the anti-dry burning device 70 and simplify the structural design of the burner head, the second detachable installation position is set at the bottom of the burner head 11.

[0104] The structure of the second detachable installation position is described below in conjunction with other structures of the furnace head 11 .

[0105] Furthermore, if Figure 1-8 , and as shown in 21-23, the furnace head 11 also includes a second ejector pipe joint 16, and an outer ring annular portion 15 having an outer ring air intake ring groove 151, the inner ring annular portion 13 is arranged on the inner side of the outer ring annular portion 15, and the bottom part of the outer ring annular portion 15 protrudes downward to form an outer ring semi-ring air intake bulge 152, and the second ejector pipe joint 16 is connected to the outer ring semi-ring air intake bulge 152.

[0106] Specifically, the pipe of the second ejector pipe joint 16 and the outer ring air inlet groove 151 are used to form the outer ring air inlet channel 1a.

[0107] In this way, by setting the outer ring semi-ring air intake bulge 152, when the fuel gas enters the outer ring air intake groove 151, it can be diverted to both sides of the outer ring semi-ring air intake bulge 152, thereby facilitating the improvement of the uniformity of the fuel gas in the outer ring air intake groove 151, thereby facilitating the improvement of the uniformity of the combustion.

[0108] Specifically, the outer annular portion 15 is located on one side of the center line of the first ejector pipe joint 12 .

[0109] Furthermore, if Figure 1-8 As shown in FIGS. 21-23 , the furnace head 11 further includes a first inner and outer connecting portion 14 , which connects the inner annular portion 13 and the outer annular portion 15 .

[0110] In this way, by providing the first inner and outer connecting portion 14 , the inner annular portion 13 and the outer annular portion 15 can be connected to form an integral component.

[0111] Of course, in order to ensure the overall stability of the burner head 11 , the burner head 11 may further include a second inner and outer connecting portion 17 , which also connects the inner annular portion 13 and the outer annular portion 15 .

[0112] Furthermore, if Figure 1-8 As shown in FIGS. 21-23, the second detachable installation position is provided at the first inner and outer connecting portion 14. In this way, on the one hand, the connection position of the anti-dry burning device 70 and the burner head 11 can be prevented from being too far away from the center of the burner head 11, and on the other hand, it can be avoided from the first detachable installation position.

[0113] Furthermore, if Figure 1-8 As shown in FIGS. 21-23 , the second detachable mounting position includes a second mounting hole 141 provided on the first inner and outer connecting portion 14 , and the second mounting hole 141 is a threaded hole for installing the anti-dry burning device 70 .

[0114] Specifically, the anti-dry-burning device 70 is a temperature detection device, and the anti-dry-burning device 70 includes a mounting arm 71, and the mounting arm 71 is provided with a second connecting hole 711, and the second connecting hole 711 is connected to the second mounting hole 141 by screws.

[0115] Furthermore, if Figure 1-8 As shown in FIGS. 21-23, one end of the first inner-outer connection portion 14 is also connected to one of the mounting protrusions 132. In this way, the structural strength of the first inner-outer connection portion 14 can be improved.

[0116] Furthermore, if Figure 1-8 As shown in FIGS. 21-23 , the other end of the first inner and outer connecting portion 14 is connected to the outer ring semi-ring air intake convex portion 152 .

[0117] Furthermore, if Figure 1-8 As shown in FIGS. 21-23, the extending direction of the second ejector pipe joint 16 is the same as the extending direction of the first ejector pipe joint 12. In this way, the layout of the ejector pipe joints at the bottom of the furnace head 11 can be reasonable, which is conducive to saving space.

[0118] Specifically, the first ejector pipe joint 12 is connected to the first universal ejector pipe 50 , and the second ejector pipe joint 16 is connected to the second universal ejector pipe 60 .

[0119] When the burner 100 is a triple-ring fire burner 100 , other structures of the triple-ring fire assembly are described below.

[0120] In one embodiment, if Figure 1-20As shown, the three-ring fire assembly includes a detachable ejector tube 18, an air distribution plate 20 and a fire cover assembly 30.

[0121] The gas distribution plate 20 has an outer ring gas channel 21, a middle ring gas channel 22 and an inner ring gas channel 23. The inner ring wall of the outer ring gas channel 21 is spaced apart from the outer ring wall of the middle ring gas channel 22. The outer ring gas channel 21, the middle ring gas channel 22 and the inner ring gas channel 23 are all annular channels.

[0122] like Figure 1-5 , and 9 and 10, the gas distribution plate 20 also has a secondary air channel 24, and the secondary air channel 24 includes a spacing air channel 241 located between the inner ring wall of the outer ring gas channel 21 and the outer ring wall of the middle ring gas channel 22 and connected to the outside air, a central air channel 242 arranged on the inner side of the inner ring gas channel 23, and an inner transverse air channel 243 that passes through the middle ring gas channel 22 and the inner ring gas channel 23 in sequence and connects the spacing air channel 241 and the central air channel 242.

[0123] Specifically, Figure 1-20 As shown, the furnace head assembly 10 has an outer ring air inlet channel 1a, a middle ring air inlet channel 1b and a central air inlet channel 1c, wherein the outer ring air inlet channel 1a and the middle ring air inlet channel 1b are both annular channels, and the central air inlet channel 1c is a through hole.

[0124] The gas distribution plate 20 is installed above the burner head assembly 10, the outer ring gas channel 21 is connected to the outer ring air intake channel 1a, the middle ring gas channel 22 is connected to the middle ring air intake channel 1b, and the inner ring gas channel 23 is connected to the center air intake channel 1c.

[0125] like Figure 1-5 As shown in , and 11-20, the fire cover assembly 30 includes an outer ring fire cover 31, a middle ring fire cover 32 and an inner ring fire cover 33, and the fire cover assembly 30 is installed on the gas distribution plate 20, and the outer ring fire cover 31, the middle ring fire cover 32 and the inner ring fire cover 33 are all annular parts, and they all have annular holes, wherein the annular hole of the outer ring fire cover 31 is an outer ring annular hole, the annular hole of the middle ring fire cover 32 is a middle ring annular hole, and the annular hole of the inner ring fire cover 33 is an inner ring annular hole.

[0126] Specifically, Figure 1-5As shown in , and 11-20, the outer ring fire cover 31 is installed above the gas distribution plate 20, and the outer ring fire cover 31 has a ring-shaped outer ring fire cavity 311 and an outer ring fire hole 312 connected to the outer ring fire cavity 311. The outer ring fire cavity 311 is connected to the outer ring gas channel 21. The gas entering the outer ring air inlet channel 1a can pass through the outer ring gas channel 21 and the outer ring fire cavity 311 in sequence, and then be ejected from the outer ring fire hole 312 to form an outer ring fire after combustion.

[0127] like Figure 1-5 , and 11-20, the middle ring fire cover 32 is installed above the gas distribution plate 20, and the middle ring fire cover 32 has a ring-shaped middle ring fire cavity 321, and a middle ring fire hole 322 connected to the middle ring fire cavity 321. The middle ring fire cavity 321 is connected to the middle ring gas channel 22. The gas entering the middle ring air inlet channel 1b can pass through the middle ring gas channel 22 and the middle ring fire cavity 321 in sequence, and then be ejected from the middle ring fire hole 322 to form a middle ring fire after combustion.

[0128] As for the inner ring fire cover 33, the inner ring fire cover 33 can be installed above the gas distribution plate 20, and the inner ring fire cover 33 has an inner ring fire cavity 331 arranged in an annular manner, and an inner ring fire hole 332 connected to the inner ring fire cavity 331. The inner ring fire cavity 331 is connected to the inner ring gas channel 23. The gas entering the central air inlet channel 1c can pass through the inner ring gas channel 23 and the inner ring fire cavity 331 in sequence, and then be ejected from the inner ring fire hole 332 to form an inner ring fire after combustion. Or, as Figure 1-5 , and 11-20, the inner ring fire cover 33 is arranged above the middle ring fire cover 32, and an inner ring fire cavity 331 arranged in an annular shape and an inner ring fire hole 332 connected to the inner ring fire cavity 331 are formed between the inner ring fire cover 33 and the middle ring fire cover 32. The inner ring fire cavity 331 is connected to the inner ring gas channel 23. The gas entering the central air inlet channel 1c can pass through the inner ring gas channel 23 and the inner ring fire cavity 331 in sequence, and then be ejected from the inner ring fire hole 332 to form an inner ring fire after combustion.

[0129] The inner ring hole of the inner ring fire cover 33 is connected with the central air channel 242. External air can pass through the interval air channel 241, the inner transverse air channel 243, the central air channel 242 and the inner ring hole in sequence, and flow out from the outlet at the upper end of the inner ring hole, so as to supplement air for the inner ring fire and the middle ring fire, and thus supplement air for the combustion of the burner 100, so as to solve the problem of insufficient air supply that the three-ring fire burner 100 and the gas stove are prone to in use, so as to ensure that the gas flowing out of the inner ring fire hole 332 of the inner fire cover and the middle ring fire hole 322 of the middle fire cover is fully burned.

[0130] In this way, by providing the secondary air channel 24, the outside air can be supplied to the middle part of the burner 100 from the interval air channel 241, the inner transverse air channel 243 and the central air channel 242, so that the inner ring fire and the middle ring fire of the burner 100 can be supplemented with air when the burner 100 is working, so as to ensure that the fuel is fully burned, that is, the problem of insufficient air supply that is prone to occur during the use of the three-ring fire burner 100 and the gas stove can be solved.

[0131] Furthermore, if Figure 1-5 As shown in FIGS. 9 and 10 , the secondary air passage 24 further includes an outer transverse air passage 244 that passes through the outer ring gas passage 21 and connects the interval air passage 241 with the outside air.

[0132] In this way, the outside air around the burner 100 / gas stove can flow from the outer transverse air channel 244 into the spacing air channel 241 and then flow to the middle of the burner 100, so that the burner 100 can be supplemented with air.

[0133] Furthermore, if Figure 1-5 As shown in FIGS. 9 and 10 , a plurality of outer transverse air passages 244 are distributed at intervals in the circumferential direction of the outer ring gas passage 21 .

[0134] In this way, the feeding amount of the outside air can be increased, so that the three-ring fire burner 100 and the gas stove are adequately supplied with air during use.

[0135] Specifically, the number of the outer transverse air channels 244 is greater than or equal to 2 and less than or equal to 10, such as 3, 4, 5, 6, 7, 8, etc.

[0136] Furthermore, if Figure 1-5 9 and 10, one of the outer transverse air passages 244 is provided corresponding to the inner transverse air passage 243. In this way, the outside air entering the interval air passage 241 from the outer transverse air passage 244 can flow into the inner transverse air passage 243, so as to improve the air supply speed and efficiency.

[0137] Furthermore, if Figure 1-5 , and 9 and 10, the outer transverse air channel 244 is gradually expanded in the radial outward direction, and / or the inner transverse air channel 243 is gradually expanded in the radial outward direction.

[0138] In this way, the air inlet of the outer transverse air channel 244 and / or the inner transverse air channel 243 can be made larger, thereby facilitating the flow of outside air into the outer transverse air channel 244 and / or facilitating the flow of air in the spacing air channel 241 into the inner transverse air channel 243.

[0139] In this embodiment, the outer transverse air passage 244 is gradually expanded in the radial outward direction, and the inner transverse air passage 243 is gradually expanded in the radial outward direction.

[0140] It should be noted that the channel walls of the plurality of outer transverse air channels 244 may separate a plurality of outer ring gas through holes (not marked in the figure) distributed at intervals along the circumferential direction in the outer ring gas channel 21 .

[0141] Furthermore, if Figure 1-5 , and 9 and 10, the inner ring wall of the middle ring gas channel 22 and the outer ring wall of the inner ring gas channel 23 are the same ring wall, and / or, the inner ring wall of the inner ring gas channel 23 is used to form the side wall of the central air channel 242. In this embodiment, the inner ring wall of the middle ring gas channel 22 and the outer ring wall of the inner ring gas channel 23 are the same ring wall, and the inner ring wall of the inner ring gas channel 23 is used to form the side wall of the central air channel 242.

[0142] In this way, by making the inner ring wall of the middle ring gas channel 22 and the outer ring wall of the inner ring gas channel 23 the same ring wall, the distance between the middle ring gas channel 22 and the inner ring gas channel 23 can be reduced. On the one hand, it is beneficial to reduce the radial size of the gas distribution plate 20, and on the other hand, it is also convenient to reduce the distance between the middle ring fire and the inner ring fire, thereby facilitating the improvement of the firepower in the middle part of the burner 100.

[0143] Moreover, by using the inner ring wall of the inner ring gas channel 23 to form the side wall of the central air channel 242, it is beneficial to reduce the radial size of the gas distribution plate 20 on the one hand, and it is convenient to increase the central through hole 135 or the inner ring gas channel 23 on the other hand.

[0144] Furthermore, if Figure 1-5 , 9 and 10, the gas distribution plate 20 includes an annular partition plate 25 which is arranged between the inner ring wall of the outer ring gas channel 21 and the outer ring wall of the middle ring gas channel 22 and connects the inner ring wall of the outer ring gas channel 21 and the outer ring wall of the middle ring gas channel 22, and the spacing air channel 241 is formed on the upper side of the annular partition plate 25.

[0145] In this way, the inner ring wall of the outer ring gas channel 21 and the outer ring wall of the middle ring gas channel 22 can be connected by the annular partition plate 25 .

[0146] Of course, in other embodiments, air holes may be provided on the annular partition plate 25 so that the outside air below the burner 100 and the gas stove may also enter the interval air channel 241; or, the inner ring wall of the outer ring gas channel 21 and the outer ring wall of the middle ring gas channel 22 may be connected by a plurality of connecting ribs distributed at intervals along the circumferential direction, and ventilation gaps may be formed between adjacent connecting ribs so that the outside air below the burner 100 and the gas stove may also enter the interval air channel 241; and so on.

[0147] Furthermore, if Figure 1-5 As shown in FIGS. 9 and 10 , the lower end of the outer ring wall of the inner ring gas channel 23 protrudes downward from the ring walls of other gas channels to form a guiding installation structure when assembled with the burner head assembly 10.

[0148] In this way, when assembling the gas distribution plate 20 and the burner head assembly 10, the downwardly protruding portion of the inner ring wall of the inner ring gas channel 23 can be aligned with the central air intake channel 1c of the burner head assembly 10 first, such as the inner ring wall of the inner ring gas channel 23 can be first sleeved outside the side wall of the central air intake channel 1c, or the inner ring wall of the inner ring gas channel 23 can be first sleeved inside the central air intake channel 1c, and then the gas distribution plate 20 and the burner head assembly 10 are guided close to each other to achieve guided installation.

[0149] Furthermore, if Figure 11-14 As shown, the middle ring fire hole 322 includes a first fire hole 3221, and the gas outlet of the first fire hole 3221 is arranged on the outer ring surface of the outer ring wall of the middle ring fire cover 32. Specifically, a plurality of the first fire holes 3221 are arranged in a circle on the circumferential direction of the outer ring wall of the middle ring fire cover 32.

[0150] Furthermore, if Figure 11-14 As shown, the outer ring surface of the outer ring wall of the middle ring fire cover 32 is provided with an air outlet groove 3242, and the air outlet groove 3242 is arranged below the air outlet of the first fire hole 3221. The middle ring fire hole 322 also includes a second fire hole 3222, and the air outlet of the second fire hole 3222 is arranged on the lower groove wall of the air outlet groove 3242. Specifically, a plurality of second fire holes 3222 are arranged on the circumferential direction of the outer ring wall of the middle ring fire cover 32.

[0151] Furthermore, if Figure 11-14 As shown, the gas outlet groove 3242 intersects with the first combustion hole 3221 to form a gas connection port 3223 .

[0152] When the burner 100 is a double-ring fire burner 100 , other structures of the double-ring fire assembly are described below.

[0153] In one embodiment, if Figure 21-23As shown, the two-ring fire assembly includes an anti-dry burning device 70, an air distribution plate 20 and a fire cover assembly 30.

[0154] Furthermore, if Figure 21-23 As shown, the gas distribution plate 20 has an inner ring gas channel 26 , an outer ring gas channel 27 and a first through hole arranged inside the inner ring gas channel 26 .

[0155] Furthermore, if Figure 6-8 As shown in FIGS. 21-23 , the furnace head 11 has an outer ring air inlet channel 1a , a middle ring air inlet channel 1b and a central through hole 135 .

[0156] The gas distribution plate 20 is installed above the furnace head 11 , the outer ring gas channel 27 is connected to the outer ring air inlet channel 1a , the inner ring gas channel 26 is connected to the middle ring air inlet channel 1b , and the first through hole is connected to the center through hole 135 .

[0157] Furthermore, if Figure 21-23 As shown, the fire cover assembly 30 includes an outer ring fire cover 31 and an inner ring fire cover 33. The fire cover assembly 30 is installed on the gas distribution plate 20. The outer ring fire cover 31 and the inner ring fire cover 33 are both annular parts.

[0158] Specifically, Figure 21-23 As shown, the outer ring fire cover 31 is installed above the gas distribution plate 20, and the outer ring fire cover 31 has a ring-shaped outer ring fire cavity 311, and an outer ring fire hole 312 connected to the outer ring fire cavity 311, and the outer ring fire cavity 311 is connected to the outer ring gas channel 27. The gas entering the outer ring air inlet channel 1a can pass through the outer ring gas channel 27 and the outer ring fire cavity 311 in sequence, and then be ejected from the outer ring fire hole 312 to form an outer ring fire after combustion.

[0159] like Figure 21-23 As shown, the inner ring fire cover 33 is installed above the gas distribution plate 20, and the inner ring fire cover 33 has an inner ring fire cavity 331 arranged in an annular shape, an inner ring fire hole 332 connected with the inner ring fire cavity 331, and a second through hole arranged on the inner side of the inner ring fire cavity 331, and the inner ring fire cavity 331 is connected with the inner ring gas channel 26. The gas entering the middle ring air inlet channel 1b can pass through the inner ring gas channel 26 and the inner ring fire cavity 331 in sequence, and then be ejected from the inner ring fire hole 332 to form an inner ring fire after combustion.

[0160] like Figure 21-23 As shown, the second through hole is connected to the first through hole, and the anti-dry-burning device 70 extends out from the central through hole 135, the first through hole and the second through hole in sequence.

[0161] In this way, a double-ring fire burner 100 may be formed.

[0162] The present invention further proposes a gas stove, which includes a burner. The specific structure of the burner refers to the above embodiment. Since the gas stove of the present invention adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0163] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A furnace head assembly, characterized in that: The burner head assembly comprises a burner head; The burner head has a universal air inlet passage and a central through hole, and is provided with a first detachable mounting position for detachably connecting with a detachable ejector tube; When the detachable ejector tube is installed on the burner head, the detachable ejector tube is detachably connected to the first detachable installation position so that the detachable ejector tube is connected to the central through hole to form a central air intake channel; when the detachable ejector tube is removed from the first detachable installation position, the central through hole is used to form a secondary air channel; The furnace head includes a first ejector pipe joint, and an inner ring portion having an inner ring air intake ring groove and the central through hole, the bottom portion of the inner ring portion protrudes downward to form an inner ring semi-ring air intake bulge, and the first ejector pipe joint is connected to the outer side surface of the inner ring semi-ring air intake bulge.

2. The burner head assembly according to claim 1, characterized in that: The first detachable mounting position is a threaded mounting position or a clamping mounting position.

3. The burner head assembly according to claim 1, characterized in that: The first detachable mounting position is arranged at the bottom of the furnace head.

4. The burner head assembly according to claim 3, characterized in that: The first detachable mounting position includes a plurality of first mounting holes arranged at the bottom of the furnace head, and the first mounting holes are threaded holes for mounting the detachable ejector tube.

5. The burner head assembly according to claim 4, characterized in that: A plurality of mounting protrusions are provided at the bottom of the furnace head, and the plurality of mounting protrusions are distributed at intervals along the circumference of the central through hole; and the first mounting hole is provided on each of the mounting protrusions.

6. The burner head assembly according to claim 5, characterized in that: The furnace head assembly further comprises a detachable ejector tube, wherein the detachable ejector tube comprises a plurality of connecting lugs; When the detachable ejector tube is installed on the furnace head, the plurality of connecting lugs are arranged in one-to-one correspondence with the plurality of mounting protrusions, and a first connecting hole is provided on the connecting lug, and the first connecting hole is connected to the first mounting hole by a screw.

7. The burner head assembly according to claim 1, characterized in that: The first detachable mounting position is arranged at the bottom of the inner ring annular portion and is located on one side of the inner ring semi-ring air inlet convex portion.

8. The burner head assembly according to claim 7, characterized in that: The furnace head assembly further comprises a detachable ejector tube, wherein the detachable ejector tube comprises a vertical mounting portion and a horizontal air inlet portion provided at a lower end of the vertical mounting portion; When the detachable ejector tube is installed on the furnace head, the vertical mounting portion is installed on the bottom of the inner ring portion through the first detachable mounting position, and the lateral extension portion extends away from the inner ring portion on one side of the inner ring semi-ring air inlet convex portion.

9. The burner head assembly according to any one of claims 1 to 8, characterized in that: The burner head also has a second detachable installation position detachably connected to the anti-dry burning device, so that the anti-dry burning device and the detachable ejector tube can be detachably installed on the burner head; When the anti-dry-burning device is installed on the burner head, the anti-dry-burning device is detachably connected to the second detachable installation position so that the anti-dry-burning device is installed in the central through hole.

10. The burner head assembly according to claim 9, characterized in that: The burner head also includes a first inner and outer connecting portion, and an outer ring portion having an outer ring air intake ring groove. The inner ring portion of the burner head is arranged on the inner side of the outer ring portion, and the first inner and outer connecting portion connects the inner ring portion and the outer ring portion; the second detachable installation position is arranged on the first inner and outer connecting portion.

11. The burner head assembly according to claim 10, characterized in that: The second detachable installation position includes a second installation hole provided on the first inner and outer connecting parts, and the second installation hole is a threaded hole for installing the anti-dry burning device; and / or, One end of the first inner and outer connecting portion is also connected to one of the mounting protrusions of the burner head; and / or, The other end of the first inner-outer connecting portion is connected to the outer ring semi-ring air intake convex portion.

12. The burner head assembly according to claim 9, characterized in that: The first removable installation position and the second removable installation position are the same removable installation position.

13. A burner, characterized in that: The invention comprises a burner head assembly as claimed in any one of claims 1 to 12.

14. A gas stove, characterized in that: Comprising the burner of claim 13.

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