A gas burner
By designing a gas burner with a bent cross-section and a multi-layer structure, the problems of complex structure, difficulty in cleaning and insufficient induction of gas stoves are solved, and efficient heat accumulation and combustion efficiency are achieved.
Patent Information
- Application Number
- CN201810419680.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-05-04
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2038-05-04
AI Technical Summary
The existing gas stove has a complex structure, difficult cleaning, a lot of heat loss, weak inducing ability, and the short length of the inlet air burner leads to a weak inducing ability.
A gas burner including a base, an inner ring fire cover, an outer ring fire cover and a top plate is designed. The height of the top plate decreases from outside to inside in the circumferential direction, forming a support ring to support the bottom surface of the pot, and passing through a bent cross-section and multi-layer structure improve heat accumulation and induction effect, and increase the length of the induction tube to improve the mixing and induction ability of gas and air.
It realizes a gas combustion effect with simple structure, convenient cleaning, less heat loss and high thermal efficiency, solves the problem of insufficient induction ability, and improves the overall combustion efficiency and induction effect of the gas stove.
Smart Images
Figure CN110440248B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of gas stoves, and in particular to a gas burner. Background Art
[0002] Gas burners include bottom-inlet burners and top-inlet burners according to the different air intake methods. The ejector tube of the bottom-inlet burner is installed under the panel. There is enough space under the panel so it is easy to install. It has strong ejection capacity within the effective diameter of the space, but it increases the cost of the stove raw materials and installation costs. The bottom-inlet burner is prone to flameout when the cabinet door is opened and closed. The top-inlet burner does not have the flameout problem when the cabinet door is opened and closed, but due to the limited space above the panel, the ejector tube is often very short, making its ejection capacity weaker.
[0003] At present, the gas stoves on the market are generally equipped with a pot support and an energy-gathering ring, that is, the burner, pot support and energy-gathering ring in the gas stove are separate structures, such as the gas stove structure disclosed in the Chinese invention patent "Gas stove and energy-gathering and heat-insulating assembly of gas stove" with patent number ZL201410178959.4 (authorization announcement number CN104676683A). The above structure makes the overall structure of the gas stove complicated, and the energy-gathering ring and the pot support need to be removed separately when cleaning, which is troublesome. Summary of the invention
[0004] The first technical problem to be solved by the present invention is to provide a gas burner with a simple structure in view of the prior art.
[0005] The second technical problem to be solved by the present invention is to provide a gas burner with less heat loss and high thermal efficiency in view of the prior art.
[0006] The third technical problem to be solved by the present invention is to provide a gas burner with sufficient injection in view of the prior art.
[0007] The fourth technical problem to be solved by the present invention is to provide a gas stove with a simple structure and easy cleaning in view of the prior art.
[0008] The technical solution adopted by the present invention to solve the above technical problems is: a gas burner, including a base and a fire cover, characterized in that it also includes an annular top plate, the base is a container with an open top, the fire cover is arranged in the base, the top plate is covered on the opening of the base and surrounded by the outer periphery of the fire cover, the height of the top plate decreases from the outside to the inside along the circumferential direction, and a supporting annular surface is formed at its outer peripheral end for the bottom surface of the cookware to rest, the height of the supporting annular surface is at least flush with the top of the fire cover, and the fire outlet of the fire cover is located above the lowest point of the top plate.
[0009] Preferably, the cross section of the top plate is bent, and comprises a first ring body and a second ring body from the inside to the outside, wherein the ring surface of the first ring body extends horizontally, the ring surface of the second ring body slopes downward from the outside to the inside, and the outer edge of the second ring body extends horizontally outward along the circumferential direction to form the above-mentioned supporting ring surface. Thus, the heat generated by the combustion can be better accumulated in the cavity formed by the top plate, further improving the energy gathering effect.
[0010] Preferably, the fire cover comprises an inner ring fire cover and an outer ring fire cover arranged around the outer circumference of the inner ring fire cover, the fire outlet holes comprise inner ring fire outlet holes arranged on the inner ring fire cover and outer ring fire outlet holes arranged on the outer ring fire cover, the inner ring fire cover and the outer ring fire cover respectively have an inner ring gas mixing chamber and an outer ring gas mixing chamber, the top plates are respectively covered on the openings of the first concave cavity and the second concave cavity to respectively form an inner ring ejection chamber and an outer ring ejection chamber that can eject gas, and the inner ring ejection chamber and the outer ring ejection chamber are respectively communicated with the inner ring gas mixing chamber and the outer ring gas mixing chamber.
[0011] Preferably, the base has a circular basin shape, and the first concave cavity and the second concave cavity extend along the length direction of the side wall of the base respectively; the inner ring ejection cavity and the outer ring ejection cavity are respectively provided with an inner ring ejection tube and an outer ring ejection tube, and the inner ring ejection tube and the outer ring ejection tube are respectively penetrated in the first concave cavity and the second concave cavity along the length direction thereof, and an inner ring air inlet port of the inner ring ejection tube is opened on one side wall of the first concave cavity along the length direction and communicated with the outside, while an inner ring air outlet port of the inner ring ejection tube is communicated with the inner ring mixing cavity, and an outer ring air inlet port of the outer ring ejection tube is opened on one side wall of the second concave cavity along the length direction and communicated with the outside, while an outer ring air outlet port of the outer ring ejection tube is communicated with the outer ring mixing cavity. Therefore, the shape characteristics of the base can be utilized to maximize the length of the ejector tube on the basis of the ejector tube of the ordinary upper air inlet burner, thereby effectively improving the ejection capacity of the inner ring ejector tube and the outer ring ejector tube, achieving the effect of full and uniform mixing of gas and air, and solving the problem of weak ejection capacity of the existing upper air inlet burner.
[0012] Preferably, the inner ring air inlet port and the outer ring air inlet port are arranged opposite to each other, and an air inlet notch for gas to enter is formed on the side wall of the base between the two. This can make the burner structure compact, and can maximize the length of the inner ring ejector pipe and the outer ring ejector pipe, and only one nozzle seat is required.
[0013] Preferably, it further comprises an outer ring gas mixing chamber, which has an outer ring gas mixing inlet communicated with the outer ring ejection chamber and an outer ring gas mixing outlet communicated with the outer ring gas mixing chamber.
[0014] Preferably, the base also has an upwardly open annular cavity and a first arc-shaped cavity, the first arc-shaped cavity is arranged on one side of the annular cavity with a gap therebetween, and is connected by at least one first through groove, the first end of the first arc-shaped cavity is closed, the second end is open and connected with the above-mentioned second concave cavity to form the above-mentioned outer ring gas mixing inlet, the above-mentioned outer ring fire cover comprises an annular fire cover body and an annular cover plate, and the cover plate is connected to the outer side wall of the fire cover body through a first connecting plate, the cover plate is covered on the opening of the above-mentioned first arc-shaped cavity to form the above-mentioned outer ring gas mixing chamber, the corresponding first connecting plate is covered on the first through groove to form the above-mentioned outer ring gas mixing outlet, and the inner edge of the above-mentioned top plate is circumferentially abutted against the top surface of the cover plate.
[0015] Preferably, one of the first through grooves is formed on the inner side wall of the second end of the first arc-shaped cavity and is opposite to the gas outlet end of the outer ring ejector tube, while the outer side wall of the second end is inclined outward, and the outer ring gas outlet port of the outer ring ejector tube is opposite to the outer side wall of the second end. In this way, the gas ejected from the outer ring gas outlet port can be sprayed onto the outer side wall, thereby colliding with the outer side wall and rebounding to the first through groove and entering the outer ring gas mixing cavity, so that the air and the gas can be further mixed and ejected more fully.
[0016] Preferably, the inner ring fire cover comprises an annular base and an end cover arranged on the base, a second connecting plate extends on the outer side surface of the base, and the base also has a third concave cavity with a disc-shaped appearance, the inner ring fire cover is arranged on the third concave cavity to form an inner ring air mixing chamber, the third concave cavity is connected with the first concave cavity through a second through groove, and the first connecting plate is covered on the second through groove to form an inner ring air mixing chamber, one end of the inner ring air mixing chamber is an inner ring air mixing inlet connected with the inner ring ejection cavity, and the other end is an inner ring air mixing outlet connected with the inner ring air mixing chamber.
[0017] Preferably, the inner ring gas mixing inlet is opposite to the outer side wall of the inlet end of the inner ring ejector tube, the other side of the first cavity along the length direction is closed by a baffle, and a gap is left between the baffle and the gas outlet port of the inner ring ejector tube, and the center line of the inner ring gas outlet port of the inner ring ejector tube intersects with the length direction of the baffle at an acute angle. In this way, the gas ejected from the inner ring gas outlet port first collides with the corresponding side wall of the first cavity, and then collides with the baffle, and the gas and air are fully ejected and mixed before entering the inner ring gas mixing cavity through the inner ring gas mixing inlet, thereby achieving efficient combustion of the inner ring fire.
[0018] Preferably, the inner bottom surface of the base also has a second arc-shaped cavity opening upward, the second arc-shaped cavity is located outside the first arc-shaped cavity and the two share a side wall, and the other side wall of the second arc-shaped cavity is the side wall of the base, and the top plate covers the opening of the second arc-shaped cavity. In this way, by providing the second arc-shaped cavity, a cavity can be formed at the corresponding part of the side wall of the base and the top plate, thereby realizing double-layer energy concentration, which can effectively reduce heat loss and greatly improve the combustion efficiency of the gas cooker.
[0019] Preferably, the outer edge of the top plate abuts against the side wall of the base along the circumferential direction, and the bottom surface of the top plate, except for the two ends, is suspended on the base, so that cavities of different sizes are formed between the top plate and the side wall of the base along the circumferential direction, thereby enabling the burner as a whole to achieve a double-layer energy-gathering effect and further reduce heat loss.
[0020] The technical solution adopted by the present invention to solve the fourth technical problem mentioned above is: a gas stove with a gas burner as described above, including a panel, characterized in that the gas burner also includes a thermocouple, an ignition needle and a nozzle seat, the thermocouple and the ignition needle are respectively fixed vertically on the panel, the nozzle seat is placed on the panel and the panel is provided with a mounting hole for the gas intake pipe of the nozzle seat to pass through, in the use state, the other parts of the gas burner except the thermocouple, the ignition needle and the nozzle seat are placed on the panel, and the thermocouple and the ignition needle pass through the gap between the inner ring fire cover and the outer ring fire cover, and the nozzle seat is embedded in the air intake notch, and the corresponding nozzles on the nozzle seat are respectively opposite to the outer ring mixing inlet and the inner ring mixing inlet.
[0021] Preferably, a secondary air replenishment gap is left between the bottom surface of the base and the panel for secondary air to enter, and the secondary air replenishment gap is communicated with the gap between the outer ring fire cover and the top plate and the gap between the outer ring fire cover and the inner ring fire cover respectively.
[0022] Compared with the prior art, the advantages of the present invention are: the gas burner in the present invention only includes a base, an inner ring fire cover, an outer ring fire cover and a top plate, with a simple structure, few parts and components, and low manufacturing cost. The top plate supports the bottom surface of the pot through a supporting annular surface so that the top plate has the function of a pot support. At the same time, the height of the top plate decreases from the outside to the inside along the circumference, so that the heat generated by the combustion can be accumulated at the bottom of the top plate and around the fire cover, effectively reducing heat loss and greatly improving the combustion efficiency of the gas stove. That is, the top plate can also play the function of an energy-gathering ring. In addition, when cleaning the gas stove of the present invention on a daily basis, you only need to pick up the burner, and only the ignition needle, thermocouple and nozzle seat are left on the panel. There are few blind spots for cleaning, which is convenient for users to clean the gas stove on a daily basis. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic diagram of the structure of a burner in an embodiment of the present invention;
[0024] Figure 2 for Figure 1 A schematic diagram of the structure in another direction;
[0025] Figure 3 for Figure 1 A schematic diagram of the structure in another direction;
[0026] Figure 4 for Figure 2 Cross-sectional view along AA direction;
[0027] Figure 5 A schematic diagram of the structure of a gas stove in an embodiment of the present invention;
[0028] Figure 6 A partial exploded view of a gas stove according to an embodiment of the present invention;
[0029] Figure 7 It is a structural exploded view of the burner in the embodiment of the present invention (with a nozzle seat);
[0030] Figure 8 This is a structural exploded view of the outer ring fire cover in an embodiment of the present invention;
[0031] Fig. 9 This is a structural exploded view of the inner ring fire cover in an embodiment of the present invention;
[0032] Fig.10 It is a schematic diagram of the partial structure of the burner in an embodiment of the present invention (without the top plate);
[0033] Fig.11 It is a schematic diagram of the structure of the base in an embodiment of the present invention (when the nozzle holder is installed);
[0034] Fig.12 It is a schematic structural diagram of the base in another state in an embodiment of the present invention (the nozzle seat is disassembled). DETAILED DESCRIPTION
[0035] The present invention is further described in detail below with reference to the accompanying drawings.
[0036] like Figure 5 and 6 As shown, a gas stove comprises a panel 101 and a gas burner 102 arranged on the panel 101. In this embodiment, one gas burner 102 is arranged on the left and right sides of the panel 101, and the gas burner 102 is an upper air inlet burner. Figures 1 to 4As shown in Figures 7 to 12, the gas burner 102 includes a base 1, an inner ring fire cover 4 and an outer ring fire cover 3. The base 1 is a container with an open top. In this embodiment, the base 1 has a circular basin shape. The inner ring fire cover 4 and the outer ring fire cover 3 are respectively arranged in the base 1, and the outer ring fire cover 3 is arranged around the outer periphery of the inner ring fire cover 4.
[0037] Furthermore, the gas burner 102 further comprises an annular top plate 2, which is covered on the opening of the base 1 and surrounds the outer periphery of the outer ring fire cover 3. The height of the top plate 2 decreases from the outside to the inside along the circumferential direction, and a support annular surface 23 is formed at its outer peripheral end for the bottom surface of the cookware to rest on. The height of the support annular surface 23 is higher than the top of the inner ring fire cover 4 and the top of the outer ring fire cover 3, respectively, and the outer ring fire outlet of the outer ring fire cover 3 is located above the lowest point of the top plate 2. Specifically, in the present embodiment, the cross section of the top plate 2 is bent, and comprises a first ring body 21 and a second ring body 22 from the inside to the outside, respectively, wherein the annular surface of the first ring body 21 extends horizontally, the annular surface of the second ring body 22 tilts downward from the outside to the inside, and the outer edge of the second ring body 22 extends horizontally outward along the circumferential direction to form the support annular surface 23. The outer edge of the supporting annular surface 23 extends vertically downward along the circumferential direction to form a first limiting protrusion 231 . The first limiting protrusion 231 abuts against the outer side surface of the top end of the base 1 along the circumferential direction.
[0038] It can be seen that the gas burner 102 in the present invention only includes components such as a base 1, an inner ring fire cover 4, an outer ring fire cover 3 and a top plate 2. It has a simple structure, few parts and components, and low manufacturing cost. The top plate 2 supports the bottom surface of the pot through the supporting annular surface 23 so that the top plate 2 has the function of a pot support. At the same time, the height of the top plate 2 decreases from the outside to the inside along the circumferential direction, so that the heat generated by the combustion can be accumulated at the bottom of the top plate 2 and around the fire cover, effectively reducing heat loss and greatly improving the combustion efficiency of the gas stove. That is, the above-mentioned top plate 2 can also play the function of an energy gathering ring.
[0039] Furthermore, the inner bottom surface of the base 1 is provided with a first cavity 11 and a second cavity 12 with openings facing upwards, and the top plate 2 is respectively covered on the openings of the first cavity 11 and the second cavity 12 to form an inner ring ejection cavity with an inner ring ejection tube 5 and an outer ring ejection cavity with an outer ring ejection tube 6, respectively, and the inner ring ejection cavity and the outer ring ejection cavity are respectively communicated with the inner ring gas mixing cavity 40 and the outer ring gas mixing cavity 30. Preferably, the first cavity 11 and the second cavity 12 extend along the length direction of the side wall of the base 1, respectively, and the inner ring ejection tube 5 and the outer ring ejection tube 6 are respectively provided in the first cavity 11 and the second cavity 12 along the length direction of the first cavity 11 and the second cavity 12. Therefore, the shape characteristics of the base 1 can be utilized to maximize the length of the ejector tube on the basis of the ejector tube of the ordinary upper air inlet burner, thereby effectively improving the ejection capacity of the inner ring ejector tube 5 and the outer ring ejector tube 6, achieving the effect of sufficient and uniform mixing of gas and air, and solving the problem of weak ejection capacity of the existing upper air inlet burner. In this embodiment, the inner ring ejector tube 5 and the outer ring ejector tube 6 are respectively formed integrally with the inner ring ejector cavity and the outer ring ejector cavity, wherein the inner ring air inlet port 51 of the inner ring ejector tube 5 is opened on one side wall of the first concave cavity 11 along the length direction and communicated with the outside, while the inner ring air outlet port 52 of the inner ring ejector tube 5 has a gap with the other side wall of the first concave cavity 11 along the length direction, and communicates with the inner ring mixing cavity 40. The outer ring air inlet port 61 of the outer ring ejector tube 6 is provided on one side wall of the second cavity 12 along the length direction and communicates with the outside, while the outer ring air outlet port 62 of the outer ring ejector tube 6 has a gap with the other side wall of the second cavity 12 along the length direction and communicates with the outer ring mixing chamber 30. Preferably, in this embodiment, the inner ring air inlet port 51 and the outer ring air inlet port 61 are arranged opposite to each other, and an air inlet notch 7 for gas to enter is formed on the side wall of the base 1 between the two. Specifically, a nozzle seat 103 is embedded in the air inlet notch 7, and the corresponding nozzle 108 on the nozzle seat 103 is opposite to the inner ring air inlet port 51 and the outer ring air inlet port 61, respectively.
[0040] In addition, the gas burner further comprises an outer ring gas mixing chamber 9, which has an outer ring gas mixing inlet communicating with the outer ring ejection chamber and an outer ring gas mixing outlet communicating with the outer ring gas mixing chamber 30. The inner bottom surface of the base 1 also comprises an upwardly open annular cavity 14 and a first arc-shaped cavity 13, the first arc-shaped cavity 13 is surrounded on one side of the annular cavity 14 with a gap between the two, and is connected through four first through grooves 131 arranged at intervals, the first end 132 of the first arc-shaped cavity 13 is closed, and the second end 133 is open and connected with the second concave cavity 12 to form the outer ring gas mixing inlet. The above-mentioned outer ring fire cover 3 includes an annular fire cover body, which includes an annular upper cover 31 and a bottom ring 32. The upper cover 31 includes an annular top wall 31a, an outer ring wall 31b and an inner ring wall 31c, wherein the outer ring wall 31b is formed by vertically extending downward from the outer edge of the annular top wall 31a, and the inner ring wall 31c is formed by obliquely extending downward from the inner edge of the annular top wall 31a. The above-mentioned outer ring wall 31b is respectively provided with a first outer ring through hole 311 and a second outer ring through hole 312. The side wall of the above-mentioned bottom ring 32 is penetrated by an outer ring fire outlet channel 321, and the top end thereof is provided with an outer ring flame stabilizing channel 32a which radially penetrates and vertically extends downward along the outer side surface of the bottom ring 32. The above-mentioned upper cover 31 is covered on the bottom ring 32, and the above-mentioned first outer ring through hole 311 and the outer side port of the outer ring fire outlet channel 321 are overlapped and assembled to form the above-mentioned outer ring fire outlet hole. At the same time, the second outer ring through hole 312 is opposite to the vertical section of the outer ring flame stabilizing channel 32a to form an outer ring flame stabilizing hole, so that the gas in the outer ring flame stabilizing channel 32a has a reduced flow rate after passing through its vertical section, thereby making the flame stabilizing fire more stable and further improving the flame stabilizing effect.
[0041] The outer ring fire cover 3 also includes a cover plate 33, which is arranged around the outer circumference of the bottom ring 32, with a uniform gap between the two along the circumferential direction. The outer side surface of the bottom ring 32 is connected to the cover plate 33 through four first connecting plates 34 evenly spaced along the circumferential direction. The cover plate 33 is covered on the opening of the first arc-shaped cavity 13 to form the outer ring mixing chamber 9, and the corresponding first connecting plate 34 is covered on the first through groove 131 to form the outer ring mixing outlet. The inner edge of the top plate 2 is against the top surface of the cover plate 33 along the circumferential direction. In order to make the connection between the top plate 2 and the cover plate 33 more stable, the inner end of the cover plate 33 is convexly provided with an annular limiting boss 331 along the circumferential direction, and the inner edge of the top plate 2 extends vertically downward along the circumferential direction to form a second limiting convex edge 211, and the limiting boss 331 is inserted into the corner formed by the second limiting convex edge 211 and the first ring body 21. Preferably, one of the first through grooves 131 is opened on the inner wall of the second end 133 of the first arc-shaped cavity 13, and is opposite to the gas outlet end of the outer ring ejector tube 6, and the outer wall of the second end 133 is inclined outward, and the outer ring gas outlet port 62 of the outer ring ejector tube 6 is opposite to the outer wall of the second end 133, so that the gas ejected from the outer ring gas outlet port 62 can be sprayed onto the above-mentioned outer wall, thereby colliding with the outer wall and rebounding to the above-mentioned first through groove 131 and entering the outer ring mixing cavity 30, so that the air and the gas can be further mixed and the ejection is more sufficient.
[0042] The above-mentioned inner ring fire cover 4 includes an annular base 42 and an end cover 41 covered on the base 42, and the cylindrical side walls of the end cover 41 are respectively provided with a first inner ring through hole 411 and a second inner ring through hole 412, and the side wall of the base 42 is penetrated by an inner ring fire outlet channel 421, and the top end is provided with an inner ring flame stabilizing channel 422 which radially penetrates and extends vertically downward along the outer side surface of the base 42, and the above-mentioned end cover 41 is covered on the base 42, and the above-mentioned first inner ring through hole 411 and the outer side port of the inner ring fire outlet channel 421 are overlapped and assembled to form an inner ring fire outlet hole, and the second inner ring through hole 412 is opposite to the vertical section of the inner ring flame stabilizing channel 422 to form an inner ring flame stabilizing hole, so that the gas in the inner ring flame stabilizing channel 422 has a reduced flow rate after passing through its vertical section, so that the flame stabilizing fire can be made more stable, thereby improving the flame stabilizing effect.
[0043] Furthermore, a second connecting plate 44 extends horizontally on the outer surface of the base 42, and a mounting ring 43 is connected to the free end of the second connecting plate 44. The mounting ring 43 is arranged around the outer periphery of the base 42 and is placed on the inner side wall fixed to the annular cavity 14 along the circumferential direction, so that the inner ring fire cover 4 can be more firmly arranged in the base 1. The base 1 also has a third concave cavity 15 with a disc-shaped appearance. The inner ring fire cover 4 is covered on the third concave cavity 15 to form an inner ring gas mixing cavity 40. The third concave cavity 15 is connected to the first concave cavity 11 through the second through groove 141, and the first connecting plate 34 is covered on the second through groove 141 to form an inner ring gas mixing chamber 45. One end of the inner ring gas mixing chamber 45 is an inner ring gas mixing inlet 451 connected to the inner ring ejection cavity, and the other end is an inner ring gas mixing outlet 452 connected to the inner ring gas mixing chamber 45. Preferably, the inner ring gas mixing inlet 451 is opposite to the outer side wall of the inlet end of the inner ring ejector tube 5, the other side of the first concave cavity 11 along the length direction is closed by a baffle 111, and a gap is left between the baffle 111 and the inner ring gas outlet port 52 of the inner ring ejector tube 5, and the center line of the inner ring gas outlet port 52 of the inner ring ejector tube 5 intersects with the length direction of the baffle 111 at an acute angle. In this way, the gas ejected from the inner ring gas outlet port 52 first collides with the corresponding side wall of the first concave cavity 11, and then collides with the baffle 111, and the gas and air are fully ejected and mixed before entering the inner ring gas mixing cavity 40 through the inner ring gas mixing inlet 451, thereby achieving efficient combustion of the inner ring fire.
[0044] In order to further enhance the energy gathering effect of the gas burner, the inner bottom surface of the base 1 is also provided with a second arc cavity 16 which opens upwards. The second arc cavity 16 is located outside the first arc cavity 13 and the two share a side wall, and the other side wall of the second arc cavity 16 is the side wall of the base 1. The top plate 2 is sealed on the opening of the second arc cavity 16. In this way, by providing the second arc cavity 16, a cavity can be formed between part of the side wall of the base 1 and the corresponding part of the top plate 2, thereby realizing double-layer energy gathering. The double-layer energy gathering effect can effectively reduce heat loss and greatly improve the combustion efficiency of the gas cooker. Preferably, the outer edge of the top plate 2 is against the side wall of the base 1 along the circumferential direction, and the bottom surface of the top plate 2 except the two ends is suspended on the base 1. Thereby, cavities of different sizes are formed between the top plate 2 and the side wall of the base 1 along the circumferential direction, thereby enabling the burner as a whole to achieve a double-layer energy gathering effect and further reduce heat loss.
[0045] In addition, the gas burner also includes a thermocouple 104, an ignition needle 105 and a nozzle seat 103. The thermocouple 104 and the ignition needle 105 are respectively fixed vertically on the panel 101. The nozzle seat 103 is placed on the panel 101 and the panel 101 is provided with a mounting hole 107 for the gas intake pipe (not shown) of the nozzle seat 103 to pass through. In addition, in order to allow the nozzle seat 103 to be placed more stably on the panel 101, the panel 101 is provided with a limiting groove 106 for the bottom surface of the nozzle seat 103 to be inserted into, and the mounting hole 107 is located in the limiting groove 106. In the use state, the gas burner is placed on the panel 101 except for the thermocouple 104, the ignition needle 105 and the nozzle seat 103, and the thermocouple 104 and the ignition needle 105 pass through the gap between the inner ring fire cover 4 and the outer ring fire cover 3, and the nozzle 108 seat 103 is embedded in the air intake notch 7, and the corresponding nozzle 108 on the nozzle seat 103 is respectively opposite to the outer ring air intake port 61 and the inner ring air intake port 51. In this way, when cleaning daily, you only need to pick up the burner, and only the ignition needle 105, the thermocouple 104 and the nozzle seat 103 are left on the panel 101, with fewer blind spots for cleaning, which is convenient for users to clean the gas stove daily. Further, preferably, a secondary air replenishment gap 8 is reserved between the bottom surface of the base 1 and the panel 101 for secondary air to enter, and the secondary air replenishment gap 8 is respectively connected with the gap between the outer ring fire cover 3 and the top plate 2 and the gap between the outer ring fire cover 3 and the inner ring fire cover 4, so that the secondary air can be replenished for the combustion of the inner and outer ring fires through the secondary air replenishment gap 8. In this embodiment, the bottom of the base 1 is partially recessed upward and two pads 17 are arranged at intervals, thereby forming the secondary air replenishment gap 8.
Claims
1. A gas burner, comprising a base (1) and a fire cover, characterized in that: It also comprises an annular top plate (2), the base (1) being a container with an open top, the fire cover being arranged in the base (1), the top plate (2) covering the open top of the base (1) and surrounding the outer periphery of the fire cover, the height of the top plate (2) decreasing from the outside to the inside along the circumferential direction, and forming a supporting annular surface (23) at its outer peripheral end for the bottom surface of the pot to rest on, the height of the supporting annular surface (23) being at least flush with the top end of the fire cover, and the fire outlet of the fire cover is located above the lowest part of the top plate (2); The top plate (2) has a bent cross-section and comprises a first ring body (21) and a second ring body (22) from the inside to the outside, wherein the ring surface of the first ring body (21) extends horizontally, the ring surface of the second ring body (22) slopes downward from the outside to the inside, and the outer edge of the second ring body (22) extends horizontally outward along the circumferential direction to form the above-mentioned supporting ring surface (23); The fire cover comprises an inner ring fire cover (4) and an outer ring fire cover (3) arranged around the outer periphery of the inner ring fire cover (4); the fire outlet holes comprise inner ring fire outlet holes arranged on the inner ring fire cover (4) and outer ring fire outlet holes arranged on the outer ring fire cover (3); the inner ring fire cover (4) and the outer ring fire cover (3) respectively have an inner ring gas mixing cavity (40) and an outer ring gas mixing cavity (30); The base (1) is provided with a first concave cavity (11) and a second concave cavity (12) with openings facing upwards, respectively; the top plate (2) is respectively covered on the openings of the first concave cavity (11) and the second concave cavity (12) to form an inner ring ejection cavity and an outer ring ejection cavity capable of ejecting gas, respectively; and the inner ring ejection cavity and the outer ring ejection cavity are respectively communicated with the inner ring mixing cavity (40) and the outer ring mixing cavity (30).
2. The gas burner according to claim 1, characterized in that: The base (1) is in the shape of a circular basin, the first concave cavity (11) and the second concave cavity (12) respectively extend along the length direction of the side wall of the base (1), the inner ring ejection cavity and the outer ring ejection cavity are respectively provided with an inner ring ejection tube (5) and an outer ring ejection tube (6), and the inner ring ejection tube (5) and the outer ring ejection tube (6) are respectively provided in the first concave cavity (11) and the second concave cavity (12) along the length direction of the first concave cavity (11) and the second concave cavity (12), Furthermore, the inner ring air inlet port (51) of the inner ring ejector tube (5) is disposed on a side wall of the first concave cavity (11) along the length direction and communicates with the outside, while the inner ring air outlet port (52) of the inner ring ejector tube (5) communicates with the inner ring mixing cavity (40). The outer ring air inlet port (61) of the outer ring ejector tube (6) is disposed on a side wall of the second cavity (12) along the length direction and communicates with the outside, while the outer ring air outlet port (62) of the outer ring ejector tube (6) communicates with the outer ring mixing cavity (30).
3. The gas burner according to claim 2, characterized in that: The inner ring air inlet port (51) and the outer ring air inlet port (61) are arranged opposite to each other, and an air inlet notch (7) for gas to enter is formed on the side wall of the base (1) between the two.
4. The gas burner according to claim 3, characterized in that: It also includes an outer ring gas mixing chamber (9), which has an outer ring gas mixing inlet communicated with the outer ring ejection chamber and an outer ring gas mixing outlet communicated with the outer ring gas mixing chamber (30).
5. The gas burner according to claim 4, characterized in that: The base (1) also has an upwardly open annular cavity (14) and a first arc-shaped cavity (13), the first arc-shaped cavity (13) being arranged on one side of the annular cavity (14) with a gap therebetween and being connected via at least one first through groove (131), the first end (132) of the first arc-shaped cavity (13) being closed, the second end (133) being open and connected with the second concave cavity (12) to form the outer annular gas mixing inlet, The outer ring fire cover (3) comprises an annular fire cover body and an annular cover plate (33), and the cover plate (33) is connected to the outer side wall of the fire cover body via a first connecting plate (34), the cover plate (33) is covered on the opening of the first arc-shaped cavity (13) to form the outer ring air mixing chamber (9), and the corresponding first connecting plate (34) is covered on the first through groove (131) to form the outer ring air mixing outlet, and the inner side edge of the top plate (2) is circumferentially against the top surface of the cover plate (33).
6. The gas burner according to claim 5, characterized in that: One of the first through grooves (131) is opened on the inner side wall of the second end (133) of the first arc-shaped cavity (13) and is opposite to the gas outlet end of the outer ring ejector tube (6), while the outer side wall of the second end (133) is inclined outward, and the outer ring gas outlet port (62) of the outer ring ejector tube (6) is opposite to the outer side wall of the second end (133).
7. The gas burner according to claim 5, characterized in that: The inner ring fire cover (4) comprises an annular base (42) and an end cover (41) disposed on the base (42), and a second connecting plate (44) extends from the outer side of the base (42). The base (1) also has a third concave cavity (15) in the shape of a disc, and the inner ring fire cover (4) is arranged on the third concave cavity (15) to form an inner ring gas mixing cavity (40). The third concave cavity (15) is connected to the first concave cavity (11) through the second through groove (141), and the first connecting plate (34) is covered on the second through groove (141) to form an inner ring gas mixing chamber (45), one end of the inner ring gas mixing chamber (45) is an inner ring gas mixing inlet (451) connected to the inner ring ejection cavity, and the other end is an inner ring gas mixing outlet (452) connected to the inner ring gas mixing chamber (45).
8. The gas burner according to claim 7, characterized in that: The inner ring gas mixing inlet (451) is opposite to the outer side wall of the inlet end of the inner ring ejector tube (5), the other side of the first cavity (11) along the length direction is closed by a baffle (111), and a gap is left between the baffle (111) and the inner ring gas outlet port (52) of the inner ring ejector tube (5), and the center line of the inner ring gas outlet port (52) of the inner ring ejector tube (5) intersects with the length direction of the baffle (111) at an acute angle.
9. The gas burner according to claim 8, characterized in that: The inner bottom surface of the base (1) also has a second arc-shaped cavity (16) opening upwards, the second arc-shaped cavity (16) is located outside the first arc-shaped cavity (13) and the two share a side wall, and the other side wall of the second arc-shaped cavity (16) is the side wall of the base (1), and the top plate (2) is sealed on the opening of the second arc-shaped cavity (16).
10. The gas burner according to claim 9, characterized in that The outer edge of the top plate (2) abuts against the side wall of the base (1) in the circumferential direction, and the bottom surface of the top plate (2) except for the two ends is suspended on the base (1).
11. A gas stove having a gas burner according to any one of claims 3 to 10, comprising a panel (101), characterized in that: The gas burner further comprises a thermocouple (104), an ignition needle (105) and a nozzle seat (103); the thermocouple (104) and the ignition needle (105) are respectively fixed vertically on the panel (101); the nozzle seat (103) is placed on the panel (101) and a mounting hole (107) is provided on the panel (101) for the gas inlet pipe of the nozzle seat (103) to pass through; in the assembled state, the gas burner has the thermocouple (104) and the ignition needle (105) as well as the nozzle seat (103). ), the ignition needle (105) and other parts outside the nozzle seat (103) are placed on the panel (101), and the above-mentioned thermocouple (104) and the ignition needle (105) respectively pass through the gap between the inner ring fire cover (4) and the outer ring fire cover (3), and the above-mentioned nozzle seat (103) is embedded in the above-mentioned air intake notch (7), and the corresponding nozzle (108) on the nozzle seat (103) is respectively opposite to the above-mentioned outer ring air intake port (61) and the inner ring air intake port (51).
12. The gas stove according to claim 11, characterized in that: A secondary air replenishment gap (8) is reserved between the bottom surface of the base (1) and the panel (101) for secondary air to enter, and the secondary air replenishment gap (8) is communicated with the gap between the outer ring fire cover (3) and the top plate (2) and the gap between the outer ring fire cover (3) and the inner ring fire cover (4).