Mounting structure of burner cap seat, burner and gas stove

Abstract

The invention provides a mounting structure of a fire cover seat, a burner and a gas stove, the mounting structure of the fire cover seat comprises at least two fuel gas injection structures for supplying fuel gas into the fire cover seat and at least one columnar bulge, and the fire cover seat is mounted on the fuel gas injection structures and the columnar bulge. According to the burner, the burner cap seat is supported through the at least two gas injection structures and the at least one columnar protrusion, stable supporting of the burner cap seat can be achieved, meanwhile, the mounting structure of the burner cap seat is simplified, a user can conveniently clean a panel below the burner cap seat, and the appearance of the burner can be more regular and attractive.

Description

Technical Field

[0001] The invention belongs to the technical field of kitchen stoves, and in particular relates to a mounting structure of a fire cover seat, a burner with the mounting structure of the fire cover seat, and a gas stove with the burner mounted thereon. Background Art

[0002] As a commonly used cooking tool in life, people's requirements for the hygiene and cleanliness of gas stoves are gradually increasing.

[0003] In the prior art, in order to ensure the installation stability of the fire cover seat, at least one side of the fire cover seat is generally fixed above the panel. For example, the Chinese invention patent with application number CN201811230937.2 discloses a two-ring fire gas stove with a reversible burner, which fixes the fire distributor seat, the central fire cover, the outer ring fire cover, the pot bracket and the support flip seat as a whole, and a fixed pivot seat is fixed on the panel. The support flip seat rotates with the fixed pivot seat through a rotating seat, so that the burner can be flipped relative to the panel.

[0004] In this solution, the rotating seat and the fixed pivot seat that cooperate with each other will cause the appearance of the burner to form an irregular shape. At the same time, after long-term use, a stubborn cleaning dead corner will be formed at the fixed pivot seat located on the rear side of the burner, and the cleaning dead corner will be directly exposed to the user's eyes, affecting the user's experience.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The present invention provides a mounting structure for a fire cover seat, which supports the fire cover seat by at least two gas injection structures and at least one columnar protrusion, thereby achieving stable support for the fire cover seat and solving the problems of poor aesthetics and difficulty in cleaning of existing burners caused by the complex mounting structure of the fire cover seat.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A fire cover seat installation structure comprises at least two gas injection structures for supplying gas into the fire cover seat and at least one columnar protrusion. The fire cover seat is installed on the gas injection structures and the columnar protrusion.

[0009] Furthermore, the projections of at least two gas injection structures and at least one columnar protrusion on the horizontal plane form a triangular structure, and the fire cover seat is installed on the top of the gas injection structure and the columnar protrusion; preferably, the fire cover seat is disc-shaped, and the three vertices of the triangular structure are not in the same semicircular area of ​​the fire cover seat.

[0010] Furthermore, two gas injection structures and a columnar protrusion which are used to form three vertices of the triangular structure are arranged near the bottom edge of the fire cover seat.

[0011] Furthermore, a second positioning portion is provided at the bottom of the fire cover seat, and along the installation direction of the fire cover seat, the second positioning portion is sleeved with the columnar protrusion;

[0012] Preferably, the second positioning portion is in the shape of a cylinder extending vertically downward from the bottom of the fire cover seat.

[0013] Furthermore, a first positioning portion is provided on the fire cover seat, and along the installation direction of the fire cover seat, the first positioning portion is sleeved with the combustion control assembly of the burner;

[0014] Preferably, the combustion control assembly comprises an ignition needle and / or a thermocouple.

[0015] Furthermore, a top surface of at least one gas injection structure is provided with an arc surface on one side away from the axis of the fire cover seat, which is in contact with the outer peripheral surface of the fire cover seat.

[0016] Furthermore, the fire cover seat comprises an inner ring mixing chamber and an outer ring mixing chamber, and a first ejector pipe communicating with the inner ring mixing chamber and a second ejector pipe communicating with the outer ring mixing chamber are arranged at the bottom of the fire cover seat;

[0017] Two gas injection structures for forming the vertices of the triangular structure, one corresponding to the first ejector pipe and the other corresponding to the second ejector pipe;

[0018] Preferably, the first ejector tube and the second ejector tube extend tangentially to the inner ring mixing chamber and the outer ring mixing chamber respectively, and the first ejector tube is arranged on one side of the bottom of the inner ring mixing chamber; one second ejector tube is arranged, which is connected with the outer ring mixing chamber from the side of the outer ring mixing chamber away from the first ejector tube; or, two second ejector tubes are arranged, one second ejector tube is connected with the outer ring mixing chamber from the side of the outer ring mixing chamber close to the first ejector tube, and the other second ejector tube is connected with the outer ring mixing chamber from the side of the outer ring mixing chamber away from the second ejector tube.

[0019] The present invention also provides a burner, comprising a burner head and a fire cover seat, wherein the above-mentioned fire cover seat mounting structure is arranged between the burner head and the fire cover seat.

[0020] The present invention also provides a gas stove equipped with the above-mentioned burner, including a panel and a shell arranged below the panel, a burner head installed in the shell, a gas injection structure and a columnar protrusion are arranged on the burner head, and the gas injection structure and the columnar protrusion extend through the panel to above the panel.

[0021] Furthermore, the pot support rack of the gas stove is fixedly connected to the fire cover seat; preferably, the pot support rack includes a support ring arranged around the fire cover seat and a support foot connected to the support ring, and the lower end of the support foot is in contact with the panel of the gas stove, or a gap is provided between the lower end of the support foot and the panel of the gas stove.

[0022] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0023] 1. The present invention supports the fire cover seat by at least two gas injection structures and at least one columnar protrusion, and the projections of at least two gas injection structures and at least one columnar protrusion on the horizontal plane form a triangular structure, which can achieve stable support for the fire cover seat. At the same time, it simplifies the installation structure of the fire cover seat, facilitates the user to clean the panel under the fire cover seat, and can make the appearance of the burner more regular and beautiful.

[0024] 2. The present invention ensures the stability of the support for the fire cover seat by arranging the three vertices of the triangular structure not to be in the same semicircular area of ​​the fire cover seat, thereby preventing the fire cover seat from tilting during use.

[0025] 3. The present invention can improve the accuracy of the installation angle of the fire cover seat by providing a second positioning portion that is sleeved with the columnar protrusion on the fire cover seat. At the same time, the fire cover seat is provided with a first positioning portion that is sleeved with the combustion control component and / or a circular arc surface that fits the outer peripheral surface of the fire cover seat is provided on the gas injection structure, which can further improve the positioning effect of the fire cover seat, ensure that the fire cover seat has a unique installation angle, make the gas injection structure correspond to the ejection pipe at the bottom of the fire cover seat one by one, and improve the installation stability of the fire cover seat.

[0026] 4. The present invention can avoid the situation where the support leg presses the panel for a long time and leaves obvious indentations on the panel by arranging the lower end of the support leg to fit with the panel of the gas stove, or providing a gap between the lower end of the support leg and the panel of the gas stove.

[0027] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0029] Figure 1 A schematic diagram of the structure of a gas stove in an embodiment of the present invention;

[0030] Figure 2 For the embodiment of the present invention Figure 1 The enlarged view of point A in the middle;

[0031] Figure 3 It is a structural schematic diagram of the cooperation between the fire cover seat and the gas injection structure in an embodiment of the present invention;

[0032] Figure 4 It is a cross-sectional view of the matching structure between the fire cover seat and the gas injection structure in an embodiment of the present invention;

[0033] Figure 5 An exploded view of the installation structure of the fire cover seat in an embodiment of the present invention;

[0034] Figure 6 For the embodiment of the present invention Figure 5 The enlarged view of point B in the middle;

[0035] Figure 7 It is a schematic diagram of the installation structure of the fire cover seat in an embodiment of the present invention;

[0036] Figure 8 It is a cross-sectional view of the installation structure of the ignition needle in the embodiment of the present invention;

[0037] Fig. 9 It is a schematic diagram of the bottom structure of the assembly of the fire cover seat and the pot support frame in an embodiment of the present invention;

[0038] Fig.10 An exploded view of the assembly structure of the fire cover seat and the pot support frame in an embodiment of the present invention;

[0039] Fig.11 Schematic diagram of the structure of the second connecting portion in an embodiment of the present invention.

[0040] Description of the main components in the figure: 1. Panel; 10. Shell; 11. Decorative cover; 111. First opening; 112. Second opening; 12. Mounting port; 2. Fire cover seat; 21. Inner ring mixing chamber; 211. Inner fire cover; 22. Outer ring mixing chamber; 221. Outer fire cover; 23. First ejector tube; 24. Second ejector tube; 251. First positioning part; 2511. First part; 2512. Second part; 252. First positioning groove; 253. Second positioning part; 26. Columnar protrusion; 27. Protective cap Cover; 3, pot support; 31, support ring; 311, bending section; 312, first extension section; 313, second extension section; 32, first support leg; 33, second support leg; 34, U-shaped piece; 35, first connecting part; 351, screw hole; 36, second connecting part; 360, connecting groove; 361, first connecting plate; 362, second connecting plate; 3621, through hole; 4, stove head; 41, ignition needle; 42, thermocouple; 43, gas injection structure; 431, nozzle; 44, ignition needle sleeve.

[0041] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0043] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the prior art, most gas stoves are equipped with a liquid receiving pan. On the one hand, the uneven shapes of the liquid receiving pan increase the difficulty of cleaning the stove surface; on the other hand, the addition of the liquid receiving pan greatly increases the manufacturing cost of the gas stove.

[0046] In order to solve the technical problem, the embodiment of the present invention provides a gas stove, specifically, a top-inlet gas stove without a liquid tray, such as Figures 1 to 11 shown.

[0047] Embodiment 1

[0048] like Figures 1 to 10 As shown, in the embodiment of the present invention, a fire cover seat installation structure is introduced. The burner comprises a burner head 4 and a fire cover seat 2, and the fire cover seat installation structure is arranged between the burner head 4 and the fire cover seat 2.

[0049] Specifically, the mounting structure of the fire cover seat includes a gas injection structure 43 and a columnar protrusion 26 arranged on the top of the burner 4 for supporting the fire cover seat 2. There are at least two gas injection structures 43 and at least one columnar protrusion 26. The projections of at least two gas injection structures 43 and at least one columnar protrusion 26 on the horizontal plane form a triangular structure, that is, at least two gas injection structures 43 and at least one columnar protrusion 26 are arranged non-collinearly in the horizontal direction, and the fire cover seat 2 is detachably mounted on the top of the gas injection structure 43 and the columnar protrusion 26.

[0050] In this embodiment, the fire cover seat 2 is supported by at least two gas injection structures 43 and at least one columnar protrusion 26, and the projections of at least two gas injection structures 43 and at least one columnar protrusion 26 on the horizontal plane form a triangular structure, which can achieve stable support for the fire cover seat 2. At the same time, the installation structure of the fire cover seat is simplified, which is beneficial for users to clean the panel 1 under the fire cover seat 2, and can make the appearance of the burner more regular and beautiful.

[0051] When the user needs to clean the panel 1, the fire cover seat 2 together with the fire cover thereon can be removed from the top of the gas injection structure 43. There is no need to set a fixed structure between the fire cover seat 2 and the fire cover, which simplifies the structure of the burner and helps to reduce the production cost of the gas stove.

[0052] In this embodiment, the three vertices of the triangular structure are not in the same semicircular area of ​​the fire cover seat 2. Specifically, the three vertices of the triangular structure are distributed at different positions of the fire cover seat 2, and the corresponding maximum arc length between any two vertices does not exceed a semicircle, that is, the projection of the three vertices of the triangular structure on the horizontal plane forms a triangular area, and the axis of the fire cover seat 2 passes through the middle of the triangular area, that is, the central angle formed by the line connecting any two vertices of the triangular structure and the center of the fire cover seat 2 is less than 180°, thereby forming a stable triangular support structure.

[0053] In this embodiment, the three vertices of the triangular structure can be formed by the gas injection structure 43 and the columnar protrusion 26. Of course, the gas injection structure 43 and the columnar protrusion 26 can also be used to form the three sides of the triangular structure, that is, there are no support points at the three vertices of the triangular structure, and at least two support points are respectively set in the middle of each side of the triangular structure, and the support points are the gas injection structure 43 or the columnar protrusion 26.

[0054] When the three vertices of the triangular structure are formed by the gas injection structure 43 and the columnar protrusion 26, at least two gas injection structures 43 and one columnar protrusion 26 are provided, and when the three sides of the triangular structure are formed by the gas injection structure 43 and the columnar protrusion 26, the total number of the gas injection structures 43 and the columnar protrusion 26 is at least six.

[0055] Preferably, in this embodiment, two gas injection structures 43 and one columnar protrusion 26 constitute the three vertices of a triangular structure. When the total number of the gas injection structures 43 and the columnar protrusions 26 is greater than three, multiple triangular structures can be formed. At this time, the three vertices of at least one triangular structure are not in the same semicircular area of ​​the fire cover seat 2.

[0056] In this embodiment, the distances from the three vertices of the triangular structure to the center of the fire cover seat 2 may be the same or different.

[0057] Preferably, in this embodiment, two gas injection structures 43 and a columnar protrusion 26 for forming three vertices of the triangular structure are arranged close to the bottom edge of the fire cover seat 2, which can further improve the supporting stability of the fire cover seat 2.

[0058] In this embodiment, a circumferential positioning structure is provided between the burner head 4 and the fire cover seat 2, and the circumferential positioning structure is used to improve the accuracy of the installation angle of the fire cover seat 2, ensure that the air inlet end of the ejector tube corresponds one-to-one with the gas injection port of the gas injection structure 43, so that the burner can work stably.

[0059] In this embodiment, a second positioning portion 253 is provided at the bottom of the fire cover seat 2, and the second positioning portion 253 is sleeved with the columnar protrusion 26 along the installation direction of the fire cover seat 2. Specifically, the second positioning portion 253 is a cylindrical shape extending vertically downward from the bottom of the fire cover seat 2. When the fire cover seat 2 is installed on the burner 4, the second positioning portion 253 is sleeved on the top of the columnar protrusion 26 from top to bottom.

[0060] Preferably, the cross-sectional area of ​​the upper end of the columnar protrusion 26 gradually decreases from bottom to top.

[0061] In some preferred embodiments, a first positioning portion 251 which is socketed with the combustion control component is provided on the fire cover seat 2 and / or an arc surface which fits with the outer peripheral surface of the fire cover seat 2 is provided on the gas injection structure 43, so as to further improve the positioning effect of the fire cover seat 2, ensure that the fire cover seat 2 has a unique installation angle, make the gas injection structure 43 correspond one-to-one with the injection pipe at the bottom of the fire cover seat 2, and improve the installation stability of the fire cover seat 2.

[0062] In some possible embodiments, the fire cover seat 2 is provided with a first positioning portion 251, and along the installation direction of the fire cover seat 2, the first positioning portion 251 is sleeved with the combustion control assembly on the burner head 4. Specifically, the first positioning portion 251 is sleeved in the middle of the combustion control assembly, so that the combustion control assembly can function normally. When installing the fire cover seat 2, it is necessary to ensure that the second positioning portion 253 is sleeved on the top of the columnar protrusion 26, and at the same time, it is necessary to ensure that the first positioning portion 251 is sleeved on the combustion control assembly, thereby determining that the installation position of the fire cover seat 2 is unique.

[0063] In this embodiment, the top of the gas injection structure 43 can be set as a plane, and the bottom of the fire cover seat 2 corresponding to the gas injection structure 43 is set as a plane that fits the top of the gas injection structure 43.

[0064] Specifically, the first positioning portion 251 is in the shape of a plate extending in the radial direction of the fire cover seat 2, and the first positioning portion 251 is provided with a first positioning hole and / or a first positioning groove 252 which is sleeved with the outer periphery of the combustion control component.

[0065] In this embodiment, the combustion control assembly includes an ignition needle 41 and / or a thermocouple 42 , and the fire cover seat 2 is provided with a first positioning portion 251 corresponding to the ignition needle 41 and / or the thermocouple 42 .

[0066] Preferably, the ignition needle 41 and the thermocouple 42 are close to each other, and a first positioning groove 252 is provided on the first positioning portion 251. The first positioning groove 252 includes two continuous recessed portions, and the two recessed portions are respectively fitted with the outer peripheral walls of the ignition needle 41 and the thermocouple 42.

[0067] In this embodiment, the fire cover seat 2 includes an inner ring mixing chamber 21 and an outer ring mixing chamber 22, the outer ring mixing chamber 22 is arranged around the inner ring mixing chamber 21, and the outer periphery of the inner ring mixing chamber 21 is spaced from the inner periphery of the inner ring mixing chamber 21. The burner head 4 is provided with an ignition needle 41 and a thermocouple 42, and the ignition needle 41 and the thermocouple 42 correspond to the space between the inner ring mixing chamber 21 and the outer ring mixing chamber 22.

[0068] like Fig. 9 As shown, in this embodiment, the first positioning portion 251 is plate-shaped, extending along the radial direction of the fire cover seat 2, and at least partially extending between the inner ring mixing chamber 21 and the outer ring mixing chamber 22. The first positioning portion 251 is provided with a first positioning groove 252, which is arranged around the ignition needle 41 and the thermocouple 42. The first positioning groove 252 includes a first recessed portion corresponding to the ignition needle 41, and a second recessed portion corresponding to the thermocouple 42, and cooperates with the ignition needle 41 and the thermocouple 42 at the same time through the first positioning groove 252.

[0069] Preferably, the first positioning portion 251 includes a first part 2511 arranged around the outer periphery of the inner ring mixing chamber 21, and a second part 2512 connected between the first part 2511 and the outer ring mixing chamber 22, and the first positioning groove 252 is arranged at the connection between the first part 2511 and the second part 2512, protruding in a direction away from the axis of the fire cover seat 2.

[0070] Specifically, Fig. 9 As shown, the first portion 2511 of the first positioning portion 251 is an arc-shaped structure, the inner periphery of the first portion 2511 is connected to the outer peripheral wall of the inner ring mixing chamber 21, and the second portion 2512 is an elongated strip.

[0071] Preferably, one side edge of the second portion 2512 close to the ignition needle 41 and the thermocouple 42 is tangent to the inner ring mixing chamber 21 .

[0072] Preferably, the width of the second portion 2512 is greater than the width of the first portion 2511 .

[0073] In this embodiment, the first positioning portion 251 can be formed on the fire cover seat 2, can be welded on the fire cover seat 2, or can be screwed to the fire cover seat 2.

[0074] In some preferred embodiments, an ignition needle sleeve 44 is provided on the burner 4, and the ignition needle 41 is fixed on the burner 4 through the ignition needle sleeve 44; the ignition needle sleeve 44 is sleeved on the outer periphery of the ignition needle 41, and the first positioning portion 251 is sleeved with the ignition needle sleeve 44.

[0075] Specifically, the burner head 4 is provided with a coaxial mounting groove and a plug-in hole, the groove wall of the mounting groove is provided with an internal thread, and the plug-in hole is provided on the groove bottom of the mounting groove.

[0076] The ignition needle 41 includes a main body section and an inserting section with a gradually decreasing diameter. The inserting section is inserted into the inserting hole, and the lower end of the main body section abuts against the bottom of the installation groove.

[0077] The inner diameter of the ignition needle sleeve 44 is the same as the outer diameter of the main body section of the ignition needle 41, or the inner diameter of the ignition needle sleeve 44 is slightly larger than the outer diameter of the main body section, and the outer peripheral wall of the lower end of the ignition needle sleeve 44 is provided with an external thread that matches the internal thread on the groove wall of the mounting groove, and the ignition needle sleeve 44 is sleeved on the outer periphery of the main body section, and the lower end of the ignition needle sleeve 44 is screwed into the groove wall of the mounting groove, and the ignition needle 41 is at least partially sandwiched between the ignition needle sleeve 44 and the groove bottom of the mounting groove.

[0078] Preferably, in this embodiment, a radial protrusion is provided on the outer peripheral wall of the main body section, and the lower end of the ignition needle sleeve 44 is pressed tightly against the radial protrusion.

[0079] Preferably, in this embodiment, a receiving groove is provided at the bottom of the ignition needle sleeve 44, and the receiving groove is sleeved outside the radial protrusion, and the groove depth of the receiving groove is less than or equal to the distance between the upper end surface of the radial protrusion and the lower end surface of the main body section, so as to ensure the fixing effect of the ignition needle 41.

[0080] Preferably, in this embodiment, the radial protrusion is arranged at the lower end of the main body section, and the depth of the accommodating groove is equal to the axial dimension of the radial protrusion.

[0081] In some preferred embodiments, a protective cover 27 extending toward the outer periphery is provided on the outer peripheral wall of the inner fire cover 211, or a protective cover 27 extending toward the inner periphery is provided on the inner peripheral wall of the outer fire cover 221, and the protective cover 27 is provided directly above the ignition needle 41 and spaced between the ignition needle 41.

[0082] Preferably, in this embodiment, the second positioning portion 253 is formed at the bottom of the outer ring mixing chamber 22 of the fire cover seat 2 .

[0083] In some other possible embodiments, a top surface of at least one gas injection structure 43 is provided with an arc surface that fits with the outer peripheral surface of the fire cover seat 2 on one side away from the axis of the fire cover seat 2 .

[0084] Since the columnar protrusion 26 is used to form the vertices of the "triangle structure", and the three vertices of the triangle structure are not in the same semicircular area of ​​the fire cover seat 2, the second positioning portion 253 matched with the columnar protrusion 26 is not coaxial with the fire cover seat 2. Therefore, the fire cover seat 2 is limited by the arc surface, and the columnar protrusion 26 and the second positioning portion 253 that cooperate with each other. When installing the fire cover seat 2, it is necessary to ensure that the second positioning portion 253 is sleeved on the top of the columnar protrusion 26. At the same time, the outer peripheral surface of the fire cover seat 2 is in contact with the arc surface, so that the installation position of the fire cover seat 2 is unique.

[0085] In some preferred embodiments, the top surface of the gas injection structure 43 is adapted to the bottom shape of the fire cover seat 2 and is used to fit with the bottom of the fire cover seat 2. The top surface of the gas injection structure 43 is away from the side of the axis of the fire cover seat 2 and is wrapped around the corner of the bottom edge of the fire cover seat 2.

[0086] Specifically, in the present embodiment, the top surface of the gas injection structure 43 is in contact with at least a portion of the outer peripheral surface of the fire cover seat 2, which can further enhance the stability of the gas injection structure 43 in supporting the fire cover seat 2, and can prevent the fire cover seat 2 from shifting relative to the gas injection structure 43 during use of the gas stove.

[0087] In some preferred embodiments, a chamfer is provided at the corner between the bottom surface and the outer peripheral surface of the fire cover seat 2, the top surface of the gas injection structure 43 abuts against the bottom surface of the fire cover seat 2, and the side of the top surface of the gas injection structure 43 away from the axis of the fire cover seat 2 is covered on the chamfer of the bottom of the fire cover seat 2.

[0088] Preferably, the chamfer at the corner between the bottom surface and the outer peripheral surface of the fire cover seat 2 is set as a rounded corner, and the top surface of the gas injection structure 43 is set as an arc surface that fits the rounded corner on the side away from the axis of the fire cover seat 2.

[0089] In this embodiment, the gas injection port of the gas injection structure 43 is arranged on the side of the gas injection structure 43, corresponding to the air inlet end of the ejector pipe at the bottom of the fire cover seat 2. Preferably, the gas injection port is coaxial with the ejector pipe.

[0090] In this embodiment, the number of ejector tubes at the bottom of the fire cover seat 2 is greater than or equal to the number of gas injection structures 43. Specifically, when the number of ejector tubes is equal to the number of gas injection structures 43, a single gas injection mechanism has only one gas injection port corresponding to the air inlet end of the ejector tube; when the number of ejector tubes is greater than the number of gas injection structures 43, at least one gas injection structure 43 has multiple gas injection ports corresponding to multiple ejector tubes, respectively. That is, one gas injection structure 43 has at least one gas injection port.

[0091] Specifically, a first ejector tube 23 communicating with the inner ring mixing chamber 21 and a second ejector tube 24 communicating with the outer ring mixing chamber 22 are provided at the bottom of the fire cover seat 2 .

[0092] In some possible embodiments, two gas injection structures 43 are provided to form the vertices of the triangular structure. One is provided for the first ejector tube 23 and one is provided for the second ejector tube 24. Of the two gas injection structures 43, one corresponds to the first ejector tube 23 and the other corresponds to the second ejector tube 24.

[0093] Preferably, the first ejector tube 23 and the second ejector tube 24 extend tangentially along the inner ring mixing chamber 21 and the outer ring mixing chamber 22 respectively, and the first ejector tube 23 is arranged on one side of the bottom of the inner ring mixing chamber 21; the second ejector tube 24 is provided with one, which is connected to the outer ring mixing chamber 22 from the side of the outer ring mixing chamber 22 away from the first ejector tube 23.

[0094] In other possible embodiments, three ejection tubes are provided at the bottom of the fire cover seat 2, and the gas injection structure 43 is provided with three ejection tubes corresponding to the ejection tubes at the bottom of the fire cover seat 2, and each gas injection structure 43 has a gas injection port; or, two gas injection structures 43 are provided, one of which is provided with two gas injection ports, and the other gas injection structure 43 is provided with one gas injection port, and the three gas injection ports correspond to the air inlet ends of the three ejection tubes respectively.

[0095] Preferably, the gas injection structure 43 is provided with three ejector tubes corresponding to the bottom of the fire cover seat 2. Specifically, two second ejector tubes 24 are provided, one second ejector tube 24 is connected to the outer ring mixing chamber 22 from the side of the outer ring mixing chamber 22 close to the first ejector tube 23, and the other second ejector tube 24 is connected to the outer ring mixing chamber 22 from the side of the outer ring mixing chamber 22 away from the second ejector tube 24.

[0096] Preferably, in this embodiment, of the two gas injection structures 43 forming the vertices of the triangular structure, one corresponds to the first ejector pipe 23 , and the other corresponds to the second ejector pipe 24 .

[0097] Preferably, in the present embodiment, the air inlet ends of the first ejector tube 23 and the second ejector tube 24 are both arranged close to the outer periphery of the outer ring mixing chamber 22, and the gas injection structures 43 corresponding to the air inlet ends of the first ejector tube 23 and the second ejector tube 24 are both arranged directly below the outer ring mixing chamber 22, that is, the gas injection structures 43 support the fire cover seat 2 from the bottom of the outer ring mixing chamber 22.

[0098] like Figure 7 and Fig. 9 As shown, in some specific embodiments, two second ejector tubes 24 are provided, which are arranged on opposite sides of the outer ring mixing chamber 22. The air inlet ends of the two second ejector tubes 24 are oriented in the same direction, and the air inlet end of the first ejector tube 23 is oriented in the opposite direction to the air inlet end of the second ejector tube 24; or, the air inlet ends of the two second ejector tubes 24 are oriented in the opposite direction. Thus, it is possible to avoid the air inlet ends of the two second ejector tubes 24 and one first ejector tube 23 being concentrated on the same side of the fire cover seat 2, thereby improving the reliability of the support of the fire cover seat 2.

[0099] Preferably, the first ejector tube 23 and the second ejector tube 24 extend tangentially to the inner ring mixing chamber 21 and the outer ring mixing chamber 22, respectively. In this embodiment, the “first ejector tube 23 extends tangentially to the inner ring mixing chamber 21” specifically means that the extension direction of the first ejector tube 23 is consistent with the extension direction of a tangent line of the inner ring mixing chamber 21; the “second ejector tube 24 extends tangentially to the outer ring mixing chamber 22” specifically means that the extension direction of the second ejector tube 24 is consistent with the extension direction of a tangent line of the outer ring mixing chamber 22.

[0100] Preferably, the first ejector tube 23 and the second ejector tube 24 are parallel to each other.

[0101] like Fig. 9 As shown, in this embodiment, the air inlet ends of the two second ejector tubes 24 face opposite directions, and the first ejector tube 23 and the second ejector tube 24 are parallel to each other. The first ejector tube 23 is arranged close to a second ejector tube 24 with the same direction.

[0102] Specifically, the air inlet end of one second ejector tube 24 faces the first direction, and the air inlet end of another second ejector tube 24 faces the second direction, and the first direction is opposite to the second direction. The air inlet end of the first ejector tube 23 faces the first direction, and the first ejector tube 23 is arranged close to the second ejector tube 24 whose air inlet end faces the first direction.

[0103] In some specific embodiments, the air outlet end of the second ejector tube 24 extends along the circumference of the outer ring mixing chamber 22, and the bottom of the air outlet end of the second ejector tube 24 gradually rises in the direction away from the air inlet end of the second ejector tube 24, thereby improving the guiding effect of the mixture of fuel gas and primary air.

[0104] In this embodiment, by arranging the air inlet ends of the two second ejector pipes 24 in opposite directions, the mixture of the fuel gas and the primary air can be spirally ascended in the outer ring mixing chamber 22, thereby improving the smoothness of the guidance of the mixture, ensuring the ejection effect of the primary air, and improving the uniformity of the mixing of the fuel gas and the primary air, thereby improving the combustion effect of the fuel gas.

[0105] By arranging the first ejector tube 23 close to a second ejector tube 24 with the same direction as the first ejector tube 23, it can be ensured that there is sufficient space between the air outlet end of the second ejector tube 24 with the air inlet end facing the second direction and the air inlet end of the first ejector tube 23 to arrange the gas injection structure 43, thereby avoiding interference between the air inlet end of the first ejector tube 23 and the air outlet end of the second ejector tube 24.

[0106] Preferably, in this embodiment, a nozzle 431 is installed at the gas injection port of the gas injection structure 43, and the nozzle 431 is coaxial with the air inlet end of the ejector pipe.

[0107] In this embodiment, the top of the inner ring mixing chamber 21 and the top of the outer ring mixing chamber 22 are respectively provided with an inner fire cover 211 and an outer fire cover 221 , and the mixture of the fuel gas and the air burns on the inner fire cover 211 and the outer fire cover 221 .

[0108] In this embodiment, a burner is also provided, including the installation structure of the fire cover seat mentioned above.

[0109] Embodiment 2

[0110] The difference between this embodiment and the above-mentioned embodiment 1 is that the top surface of the gas injection structure 43 has a microscopic uneven structure, showing a rough characteristic. Therefore, the friction coefficient between the top of the gas injection structure 43 and the bottom of the fire cover seat 2 can be increased, the supporting stability of the gas injection structure 43 on the fire cover seat 2 can be improved, and relative displacement between the fire cover seat 2 and the gas injection structure 43 can be avoided during use.

[0111] In some preferred embodiments, the surface roughness of the top surface of the gas injection structure 43 is greater than or equal to the surface roughness of the bottom surface of the fire cover seat 2 .

[0112] Embodiment 3

[0113] like Figure 1 As shown, in an embodiment of the present invention, a gas stove is further provided. The gas stove includes the burner in the above-mentioned embodiment 1 or embodiment 2, and also includes a panel 1 and a shell 10.

[0114] The panel 1 is mounted on the top of the housing 10, a cavity is formed between the panel 1 and the housing 10, and the burner head 4 is mounted in the cavity. Specifically, the burner head 4 is mounted on the bottom of the housing 10 and is fixedly connected to the housing 10 by a connection structure such as screws, bolts, and buckles.

[0115] In this embodiment, the burner 4 is mainly composed of a gas injection structure 43, a gas distribution pipe and a bracket, and the gas distribution pipe is used to transport gas from the gas valve to the gas injection structure 43. The gas distribution pipe and the gas injection structure 43 are both fixed on the bracket, and the bracket is fixedly connected to the housing 10.

[0116] The panel 1 is provided with a mounting opening 12, the burner head 4 is installed below the panel 1, the gas injection structure 43 on the top of the burner head 4 extends upward through the mounting opening 12 on the panel 1, and the top of the gas injection structure 43 extends above the panel 1. The fire cover seat 2 is installed on the gas injection structure 43 and is arranged opposite to the panel 1. Therefore, it is beneficial to reduce the mounting opening 12 opened on the panel 1 and improve the aesthetics of the panel 1.

[0117] like Figure 6 As shown, in this embodiment, two installation openings 12 are opened on the panel 1, wherein the gas injection structure 43 corresponding to the air inlet end of the first ejector tube 23 and the gas injection structure 43 corresponding to the air inlet end of the second ejector tube 24 with the air inlet end facing the first direction are arranged in the same installation opening 12, and the gas injection structure 43 corresponding to the air inlet end of the ejector tube with the air inlet end facing the second direction is arranged in another installation opening 12.

[0118] Preferably, in this embodiment, the thermocouple 42 and the ignition needle 41 are disposed in one of the mounting openings 12 , and the columnar protrusion 26 is disposed in the other mounting opening 12 .

[0119] Preferably, the thermocouple 42 and the ignition needle 41 correspond to the mounting opening 12 with a gas injection structure 43 provided therein, and the columnar protrusion 26 corresponds to the mounting opening 12 with two gas injection structures 43 provided therein.

[0120] In this embodiment, a decorative cover 11 for shielding the installation opening 12 is installed at the installation opening 12 , and the decorative cover 11 is provided with a first opening 111 adapted to the outer peripheral shape of the gas injection structure 43 , and a second opening 112 adapted to the outer peripheral shape of the installation portion.

[0121] Preferably, in this embodiment, the decorative cover 11 includes a plate portion covering the mounting opening 12 and affixed to the panel 1, and a cylindrical portion extending vertically downward from the middle of the plate portion and having an outer periphery affixed to the inner wall of the mounting opening 12. The first opening 111 and / or the second opening 112 are provided in the middle of the plate portion.

[0122] In some possible embodiments, the columnar protrusion 26 is also used to position the decorative cover 11. Specifically, the lower end of the columnar protrusion 26 passes through the second opening 112 and is detachably connected to the stove head 4, and the portion of the columnar protrusion 26 located above the decorative cover 11 fits with the top of the decorative cover 11 at the periphery of the second opening 112, so that the decorative cover 11 can be limited on the panel without providing additional mounting structures such as screws.

[0123] Preferably, the lower end of the columnar protrusion 26 is threadedly connected to the furnace head.

[0124] Preferably, the upper end of the columnar protrusion 26 fits with the bottom of the fire cover seat 2, that is, the columnar protrusion can also support the fire cover seat, further improving the installation stability of the fire cover seat.

[0125] In this embodiment, the pot support frame 3 of the gas stove is fixedly connected to the fire cover seat 2 , and the pot support frame 3 includes a support ring 31 arranged around the fire cover seat 2 and support legs connected to the support ring 31 .

[0126] Specifically, the support ring 31 is arranged on the outer periphery of the fire cover seat 2, the inner diameter of the support ring 31 is the same as the outer diameter of the fire cover seat 2, or the inner diameter of the support ring 31 is slightly larger than the outer diameter of the fire cover seat 2, and the support ring 31 extends in a direction away from the axis of the fire cover seat 2. The inner periphery of the support ring 31 is connected to the outer periphery of the fire cover seat 2.

[0127] Preferably, the outer diameter of the support ring 31 is greater than or equal to the maximum distance between the edge of the mounting opening 12 and the axis of the fire cover seat 2, that is, the projection of the outer edge of the support ring 31 on the panel 1 surrounds the mounting opening 12, so that the whole composed of the pot support 3 and the fire cover seat 2 can cover the mounting opening 12 on the panel 1, further improving the aesthetics of the gas stove.

[0128] Preferably, the outer diameter of the support ring 31 is greater than or equal to the maximum distance between the edge of the decorative cover 11 and the axis of the fire cover seat 2, so that the decorative cover 11 will not be exposed, or only a small part of the decorative cover 11 will be exposed from the gap between the inner ring mixing chamber 21 and the outer ring mixing chamber 22, thereby improving the user's visual experience.

[0129] Preferably, in this embodiment, the support ring 31 extends downwardly in a direction away from the axis of the fire cover seat 2, and / or the outer periphery of the support ring 31 extends vertically downward, which can further enhance the shielding effect of the support ring 31 on the decorative cover 11, and prevent the user from directly observing the decorative cover 11 from the side of the pot support 3. Through the above arrangement, the outer edge of the support ring 31 can be extended to the outer periphery of the decorative cover 11, and the outer edge of the support ring 31 is close to the panel 1, thereby preventing the user from directly observing the decorative cover 11 from the oblique front of the gas stove, thereby improving the user's visual experience. In addition, under the supporting effect of the fire cover seat 2 on the pot support 3, the outer edge of the support ring 31 is spaced from the panel 1, so that the primary air sucked in through the ejector pipe during the gas injection process and part of the secondary air required during the gas combustion process can enter from the gap between the support ring 31 and the panel 1, thereby ensuring the combustion effect.

[0130] In some preferred embodiments, along the direction away from the axis of the fire cover seat 2, the support ring 31 has a first extension section 312 extending upwardly and obliquely along the direction away from the axis of the fire cover seat 2, and a second extension section 313 extending vertically downward from the outer edge of the support ring 31. The provision of the first extension section 312 can help the heat of the flame combustion to converge to the bottom of the pot, thereby improving the utilization rate of the heat. At the same time, the provision of the second extension section 313 can also ensure the shielding effect of the decorative cover 11 and ensure the appearance.

[0131] In this embodiment, the pot support frame 3 is coaxial with the fire cover seat 2.

[0132] In some possible embodiments, the support legs are only used to support the cookware and are disposed on the top of the support ring and do not extend below the support ring. Alternatively, the lower ends of the support legs extend below the support ring, but the portions of the support legs extending below the support ring are hidden by the support ring. Specifically, during normal use, the user cannot see the portion of the support legs below the support ring, thereby making the pot support rack appear suspended, improving the user's visual experience.

[0133] In some other possible embodiments, the lower end of the support leg is close to the panel 1 of the gas stove.

[0134] The supporting legs can assist the fire cover seat 2 in supporting the supporting ring 31. When the weight of the pot supported on the pot support rack 3 is heavy, the supporting ring 31 will deform, so that the panel 1 can provide supporting force to the supporting ring 31 through the supporting legs, thereby improving the supporting stability of the pot support rack 3 on the pot.

[0135] Preferably, the bottom of the support leg is in contact with the panel 1 of the gas stove, and when no pot is placed on the pot support rack 3, the support leg does not exert pressure on the panel 1, or a gap is provided between the lower end of the support leg and the panel 1 of the gas stove.

[0136] In this embodiment, a first support leg 32 is provided on the support ring 31 . The first support leg 32 is provided on the top of the support ring 31 . The pot support rack 3 supports the pot through the first support leg 32 .

[0137] In this embodiment, the first legs 32 are provided in multiple numbers and are evenly arranged along the circumference of the support ring 31 to ensure the support stability of the cookware. Preferably, the first legs 32 are provided in four numbers and are evenly arranged along the circumference of the support ring 31.

[0138] In some specific embodiments, the first support leg 32 is in the shape of a plate extending radially along the support ring 31, and a support portion extending toward the axial direction of the support ring 31 is provided at the top thereof, and the top of the support portion is provided as an inclined surface extending downwardly along the direction of the axial direction of the support ring 31.

[0139] In some preferred embodiments, a second support leg 33 is disposed at the bottom of the support ring 31 , and the bottom of the second support leg 33 is close to the panel 1 of the gas stove.

[0140] Specifically, when no pot is placed on the pot support rack 3, or when the pot supported on the pot support rack 3 is light, the bottom of the second support leg 33 will not exert pressure on the panel 1, and will not even contact the panel 1, thereby preventing the second support leg 33 from pressing the panel 1 for a long time and causing obvious indentations on the panel 1. At the same time, the provision of the second support leg 33 can further prevent the pot supported on the pot support rack 3 from tipping over, thereby improving the working stability of the gas stove.

[0141] Preferably, in this embodiment, a gap is provided between the bottom of the second supporting leg 33 and the panel 1 of the gas stove.

[0142] In this embodiment, the second support leg 33 is in the shape of a plate extending in the radial direction of the support ring 31 .

[0143] Preferably, in this embodiment, a plurality of second legs 33 are provided corresponding one-to-one to the first legs 32 .

[0144] Preferably, the second support leg 33 and the first support leg 32 are an integral part formed on the support ring 31, and the first support leg 32 and the second support leg together constitute the support leg.

[0145] Preferably, in this embodiment, a U-shaped member 34 is provided at the bottom of the second leg 33, and the U-shaped member 34 is made of a flexible material. The U-shaped member 34 is fixed to the bottom of the second leg 33 to cover the bottom of the second leg 33. The bottom of the second leg 33 contacts the panel 1 through the U-shaped member 34, which can prevent the panel 1 from being scratched when the bottom of the second leg 33 contacts the panel 1.

[0146] In this embodiment, the U-shaped member 34 may be made of a silicone material or a heat-resistant rubber material.

[0147] Preferably, in the present embodiment, the bottom of the second supporting leg 33 is lower than the bottom of the fire cover seat 2. Thus, when the user removes the fire cover seat 2 and the pot support rack 3 and places them, the second supporting leg 33 can be used to support the whole formed by the fire cover seat 2 and the pot support rack 3, so that the whole formed by the fire cover seat 2 and the pot support rack 3 can remain stable, and the bottom of the fire cover seat 2 can be prevented from contacting the supporting surface for placing the fire cover seat 2 and the pot support rack 3, thereby preventing dirt from entering the ejection tube.

[0148] Embodiment 4

[0149] like Fig.10 and Fig.11 As shown, this embodiment provides an assembly solution between the pot support 3 and the fire cover seat 2 in the above-mentioned embodiments 1 to 3.

[0150] The pot support frame 3 is connected to the outer periphery of the fire cover seat 2 and is annular. The pot support frame 3 is sleeved on the outer periphery of the fire cover seat 2 and is coaxial with the fire cover seat 2.

[0151] A first connecting portion 35 is provided on the outer peripheral wall of the fire cover seat 2, and a second connecting portion 36 corresponding to the first connecting portion 35 is provided on the pot support frame 3. The fire cover seat 2 and the pot support frame 3 rotate relative to each other so that the first connecting portion 35 and the second connecting portion 36 are plugged into each other, thereby realizing the pre-installation positioning between the pot support frame 3 and the fire cover seat 2, facilitating the subsequent further fixation of the pot support frame 3 and the fire cover seat 2, and improving the positioning effect between the pot support frame 3 and the fire cover seat 2, ensuring the matching accuracy between the pot support frame 3 and the fire cover seat 2, and especially ensuring the coaxiality between the pot support frame 3 and the fire cover seat 2.

[0152] The second connection portion 36 is provided with a connection groove 360, which is provided at the side of the second connection portion 36, and the direction of the connection groove 360 ​​corresponds to the circumferential direction of the pot support frame 3, or the connection groove 360 ​​is oriented toward the axis of the pot support frame 3, and the end of the connection groove 360 ​​is connected to at least one side of the second connection groove 360. The first connection portion 35 protrudes outward from the outer peripheral wall of the fire cover seat 2 along the radial direction of the fire cover seat 2, and in the circumferential direction of the pot support frame 3, the first connection portion 35 and the connection groove 360 ​​at least partially overlap.

[0153] In some possible embodiments, the notch of the connecting groove 360 ​​faces the side where the first connecting portion 35 is screwed in, that is, the bottom of the connecting groove 360 ​​extends along the radial direction of the pot supporting frame 3 .

[0154] In some possible embodiments, the notch of the connecting groove 360 ​​faces the axis of the pot support rack 3, that is, the bottom of the connecting groove 360 ​​extends along the circumference of the pot support rack 3, or the bottom of the connecting groove 360 ​​extends along the tangent direction of the circle where the end of the first connecting portion 35 is located.

[0155] In this embodiment, both ends of the connecting groove 360 ​​can be arranged to be connected to both sides of the second connecting portion 36, that is, the connecting groove 360 ​​passes through the second connecting portion 36; or the connecting groove 360 ​​can be arranged to be connected only to the side of the second connecting portion 36 that is screwed into the first connecting portion 35. Preferably, the groove bottom of the connecting groove 360 ​​is arranged to be L-shaped, including a first wall opposite to the axis of the pot support rack 3, and a second wall extending along the radial direction of the pot support rack 3. Preferably, the first wall extends along the circumferential direction of the pot support rack 3.

[0156] In some possible embodiments, the second connection portion 36 is configured to be columnar, the extension direction of the second connection portion 36 is parallel to the axis of the fire cover seat 2 , and the connection groove 360 ​​is disposed on one side of the second connection portion 36 .

[0157] In some other possible embodiments, the second connecting portion 36 is a bent plate, and the bent plate is connected to the pot support frame 3 as a whole, and they surround each other to form the connecting groove 360.

[0158] Preferably, in this embodiment, the second connecting portion 36 includes a first connecting plate 361 and a second connecting plate 362, the first connecting plate 361 extends along the axial direction of the pot support frame 3, the second connecting plate 362 is arranged at the end of the first connecting plate 361, and extends along the radial direction of the pot support frame 3, and a connecting groove 360 ​​is formed between the second connecting plate 362 and the pot support frame 3.

[0159] In some possible embodiments, the second connecting plate 362 extends from the end of the first connecting plate 361 in a direction close to the axis of the pot-supporting rack 3, and forms a connecting groove 360 ​​with the pot-supporting rack 3 with a notch facing the axis of the pot-supporting rack 3, and the first connecting plate 361 constitutes the bottom of the connecting groove 360.

[0160] In this embodiment, the distance between the first connecting plate 361 and the axis of the pot support 3 is greater than or equal to the distance between the end of the first connecting portion 35 and the axis of the fire cover seat 2 .

[0161] In some other possible embodiments, one end of the second connecting plate 362 protrudes outward relative to the first connecting plate 361 along the circumference of the pot support frame 3, and a connecting groove 360 ​​is formed between the second connecting plate 362 and the pot support frame 3.

[0162] In this embodiment, the first connecting plate 361 can be set at any position between the inner periphery and the outer periphery of the pot support rack 3, and it is only necessary to ensure that the minimum distance between the edge of the second connecting plate 362 and the axis of the pot support rack 3 is smaller than the distance between the end of the first connecting portion 35 and the axis of the fire cover seat 2.

[0163] Preferably, in this embodiment, the first connecting plate 361 extends from the inner periphery of the pot support frame 3 along the axial direction of the pot support frame 3. Specifically, the first connecting plate 361 can be a straight plate tangent to the central opening of the pot support frame 3, or can be an arc-shaped plate extending along the central opening of the pot support frame 3. The width of the second connecting plate 362 is greater than the width of the first connecting plate 361, and it bends and extends in a direction away from the axis of the pot support frame 3. Thus, the compactness of the assembly between the pot support frame 3 and the fire cover seat 2 can be improved.

[0164] Specifically, the “width of the second connecting plate 362 ” refers to the extension length of the second connecting plate 362 along the circumference of the middle opening.

[0165] Preferably, in this embodiment, the first connecting plate 361 is an arc-shaped plate extending along the central opening of the pot support rack 3, the second connecting plate 362 extends radially along the pot support rack 3, and the side of the second connecting plate 362 close to the axis of the pot support rack 3 is aligned with the edge of the central opening of the pot support rack 3.

[0166] Preferably, one end of the second connecting plate 362 is flush with one end of the first connecting plate 361 , and the other end of the second connecting plate 362 protrudes outward relative to the first connecting plate 361 along the circumferential direction of the pot support 3 .

[0167] Preferably, in the present embodiment, a plurality of second connection parts 36 are arranged at intervals along the circumferential direction of the pot support rack 3, and a plurality of first connection parts 35 corresponding to the second connection parts 36 are provided on the outer peripheral wall of the pot support rack 3. When the pot support rack 3 is sleeved on the outer periphery of the fire cover seat 2 and rotated relative to the fire cover seat 2, each first connection part 35 is respectively inserted into the connection groove 360 ​​of the corresponding second connection part 36.

[0168] In this embodiment, the second connection portion 36 can be arranged on the top of the pot supporting frame 3 , or can be arranged on the bottom of the pot supporting frame 3 .

[0169] Preferably, in order to improve the aesthetics of the gas stove, the second connection portion 36 is arranged at the bottom of the pot support frame 3. In this embodiment, the pot support frame 3 is sleeved on the outer periphery of the fire cover seat 2 from the top of the fire cover seat 2, so that the second connection portion 36 and the first connection portion 35 on the fire cover seat 2 are at the same height, and then the pot support frame 3 is rotated so that the connection groove 360 ​​on the second connection portion 36 is sleeved on the first connection portion 35.

[0170] like Fig.10 As shown, in this embodiment, the pot support 3 includes a support ring 31 arranged around the fire cover seat 2, and a support foot arranged on the support ring 31, the support ring 31 is arranged on the outer periphery of the fire cover seat 2, the inner diameter of the support ring 31 is the same as the outer diameter of the fire cover seat 2, or the inner diameter of the support ring 31 is slightly larger than the outer diameter of the fire cover seat 2, and the second connecting portion 36 is arranged on the support ring 31 and is offset from the support foot in the circumferential direction and / or radial direction.

[0171] Preferably, in this embodiment, the support foot is disposed on the support ring 31, close to the outer periphery of the support ring 31, and the second connecting portion 36 is disposed close to the inner periphery of the support ring 31, corresponding to the support foot in the radial direction.

[0172] In some specific embodiments, four supporting feet are arranged at intervals along the circumference of the pot support frame 3, and four second connecting parts 36 are provided corresponding to the supporting feet one by one.

[0173] Specifically, in this embodiment, the support ring 31 is in the shape of a plate extending in a direction away from the axis of the pot support frame 3, and the inner circumference of the support ring 31 is provided with a bending section 311 that bends and extends downward, and the first connecting plate 361 extends downward from the lower end of the bending section 311, and a connecting groove 360 ​​is formed between the second connecting plate 362 and the lower end of the bending section 311. By providing the connecting groove 360 ​​between the second connecting plate 362 and the lower end of the bending section 311, the lower end of the bending section 311 can be used for guidance, so that the first connecting portion 35 can be smoothly inserted into the connecting groove 360, thereby improving the smoothness of the installation between the fire cover seat 2 and the pot support frame 3. At the same time, the provision of the bending section 311 can also better hide the first connecting portion 35 and the second connecting portion 36, thereby avoiding direct observation by the user during use, thereby improving the appearance of the gas stove.

[0174] Preferably, in this embodiment, the distance between the second connecting plate 362 and the bending section 311 is equal to the thickness of the first connecting portion 35. When the first connecting portion 35 is inserted into the connecting groove 360, the top of the first connecting portion 35 fits with the lower end of the bending section 311, and the bottom of the first connecting portion 35 fits with the second connecting plate 362. Thereby, the tightness of the cooperation between the first connecting portion 35 and the second connecting portion 36 can be further improved, and the assembly stability between the pot support 3 and the fire cover seat 2 can be improved.

[0175] In this embodiment, the first connection portion 35 and the second connection portion 36 can be fixed by any means such as a latch, a lock, or a screw.

[0176] In some possible embodiments, after the first connection portion 35 is inserted into the installation slot, the end of the second connection plate 362 is bent upward to close the notch of the installation slot and limit the first connection portion 35 in the installation slot.

[0177] In some other possible embodiments, the first connection portion 35 and the second connection portion 36 are fixed to each other via a connecting member. Specifically, the connecting member passes through the overlapping portion between the first connection portion 35 and the second connection portion 36 to limit the first connection portion 35 in the installation groove.

[0178] Preferably, in the present embodiment, the first connecting portion 35 is an ear plate protruding radially outward from the outer peripheral wall of the fire cover seat 2, a screw hole 351 is provided in the middle of the ear plate, and the connecting piece is a positioning screw that passes through the second connecting portion 36 and is connected to the screw hole 351 from the overlap between the first connecting portion 35 and the second connecting portion 36.

[0179] Specifically, in this embodiment, when the first connecting portion 35 is inserted into the connecting groove 360 ​​on the second connecting portion 36, the through hole 3621 on the second connecting plate 362 is aligned with the screw hole 351 on the ear plate, and the positioning screw passes through the through hole 3621 on the second connecting plate 362 from bottom to top and is connected to the screw hole 351 on the ear plate, and the head of the positioning screw squeezes the second connecting plate 362 to the bottom of the ear plate.

[0180] Preferably, in this embodiment, the positioning screw is a countersunk screw, and the second connecting portion 36 is provided with a countersunk hole that matches the head of the countersunk screw.

[0181] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the present invention can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A fire cover seat installation structure, characterized in that: The fire cover seat (2) comprises at least two gas injection structures (43) for supplying gas into the fire cover seat (2), and at least one columnar protrusion (26); the fire cover seat (2) is mounted on the gas injection structures (43) and the columnar protrusion (26).

2. The installation structure of the fire cover seat according to claim 1, characterized in that: The projections of at least two gas injection structures (43) and at least one columnar protrusion (26) on a horizontal plane form a triangular structure, and the fire cover seat (2) is installed on the top of the gas injection structure (43) and the columnar protrusion (26); Preferably, the fire cover seat (2) is disc-shaped, and the three vertices of the triangular structure are not located in the same semicircular area of ​​the fire cover seat (2).

3. The installation structure of the fire cover seat according to claim 2, characterized in that: Two gas injection structures (43) and a columnar protrusion (26) for forming three vertices of the triangular structure are arranged near the bottom edge of the fire cover seat (2).

4. The fire cover seat installation structure according to any one of claims 1 to 3, characterized in that: A second positioning portion (253) is provided at the bottom of the fire cover seat (2), and along the installation direction of the fire cover seat (2), the second positioning portion (253) is sleeved with the columnar protrusion (26); Preferably, the second positioning portion (253) is in the shape of a cylinder extending vertically downward from the bottom of the fire cover seat (2); Preferably, the cross-sectional area of ​​the upper end of the columnar protrusion (26) gradually decreases from bottom to top.

5. The installation structure of the fire cover seat according to claim 4, characterized in that: A first positioning portion (251) is also provided on the fire cover seat (2), and along the installation direction of the fire cover seat (2), the first positioning portion (251) is sleeved with the combustion control component of the burner; Preferably, the combustion control assembly comprises an ignition needle (41) and / or a thermocouple (42).

6. The installation structure of the fire cover seat according to claim 4, characterized in that: A circular arc surface that fits the outer peripheral surface of the fire cover seat (2) is provided on the side of the top surface of at least one gas injection structure (43) away from the axis of the fire cover seat (2).

7. The fire cover seat installation structure according to any one of claims 1 to 3, characterized in that: The fire cover seat (2) comprises an inner ring mixing chamber (21) and an outer ring mixing chamber (22); a first ejector tube (23) communicating with the inner ring mixing chamber (21) and a second ejector tube (24) communicating with the outer ring mixing chamber (22) are arranged at the bottom of the fire cover seat (2); Two gas injection structures (43) used to form the vertices of the triangular structure, one corresponding to the first ejector tube (23) and the other corresponding to the second ejector tube (24); Preferably, the first ejector tube (23) and the second ejector tube (24) extend tangentially along the inner ring mixing chamber (21) and the outer ring mixing chamber (22), respectively, and the first ejector tube (23) is arranged on one side of the bottom of the inner ring mixing chamber (21); one second ejector tube (24) is arranged, which is connected to the outer ring mixing chamber (22) from a side of the outer ring mixing chamber (22) away from the first ejector tube (23); or, two second ejector tubes (24) are arranged, one second ejector tube (24) is connected to the outer ring mixing chamber (22) from a side of the outer ring mixing chamber (22) close to the first ejector tube (23), and the other second ejector tube (24) is connected to the outer ring mixing chamber (22) from a side of the outer ring mixing chamber (22) away from the second ejector tube (24).

8. A burner, comprising a burner head (4) and a fire cover seat (2), characterized in that: A fire cover seat mounting structure as claimed in any one of claims 1 to 7 is arranged between the burner head (4) and the fire cover seat (2).

9. A gas stove equipped with the burner as claimed in claim 8, characterized in that: The invention comprises a panel (1) and a shell (10) arranged below the panel (1); a burner head (4) is installed in the shell (10); a gas injection structure (43) and a columnar protrusion (26) are arranged on the burner head (4); and the gas injection structure (43) and the columnar protrusion (26) pass through the panel (1) and extend to above the panel (1).

10. The gas stove according to claim 9, characterized in that: The pot support frame (3) of the gas stove is fixedly connected to the fire cover seat (2); Preferably, the pot support frame (3) comprises a support ring (31) arranged around the fire cover seat (2) and a support leg connected to the support ring (31), and the lower end of the support leg is in contact with the panel (1) of the gas stove, or a gap is provided between the lower end of the support leg and the panel (1) of the gas stove.

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