Gas stove

Abstract

The utility model discloses a gas stove, relates to the technical field of kitchen utensils, and is used for solving the problems of insufficient firepower and relatively low heat efficiency caused by insufficient mixing of gas and air in the working process of an existing gas stove. The gas stove comprises a burner, a fire distributor and an outer ring fire cover. A premixing cavity is formed in the furnace end. The fire distributor is arranged on the furnace end, a gas distribution cavity is formed between two opposite wall surfaces in the circumferential direction of the fire distributor, and the gas distribution cavity is communicated with the premixing cavity. And in the direction from the outer ring fire cover to the fire distributor, the outer side wall surface extends towards one side far away from the central shaft, so that the volume of the gas distribution cavity is gradually increased. And the outer ring fire cover covers the fire distributor. The outer ring fire cover is provided with fire outlet holes communicating with the gas distribution cavity.

Description

Technical Field

[0001] This application relates to the technical field of kitchen appliances, and particularly to a gas stove. Background Art

[0002] With the improvement of people's living standards and the acceleration of the urbanization process, as an essential cooking tool in the kitchen, the market scale of gas stoves has been continuously expanding. Along with the continuous improvement of global environmental awareness and the deepening of the concept of energy conservation and emission reduction, it has promoted the gas stove industry to develop towards the direction of green and low-carbon. High-efficiency, energy-saving, and safe gas stove equipment has become the goal of the industry's development.

[0003] A gas stove mixes gas and air and burns them to generate heat energy, thereby heating cookware.

[0004] However, currently, gas stoves often have insufficient firepower and low thermal efficiency due to the insufficient mixing of gas and air. Summary of the Utility Model

[0005] This application provides a gas stove for solving the problem of low combustion thermal efficiency of existing gas stoves.

[0006] To achieve the above object, this application adopts the following technical solutions:

[0007] This application provides a gas stove, including: a burner head, a distributing fire device, and an outer ring fire cap. Among them, a first premixing chamber is formed inside the burner head, and a first air inlet is connected to the first premixing chamber. The first air inlet is used to introduce the mixed gas after mixing gas and air; the distributing fire device is arranged on the burner head, and a first gas distributing chamber is formed therein, which is communicated with the first premixing chamber; the outer ring fire cap is covered on the distributing fire device, and the outer ring fire cap is formed with a first fire outlet hole communicated with the first gas distributing chamber; wherein, the distance between the opposite two wall surfaces of the first gas distributing chamber in the circumferential direction of the distributing fire device gradually increases, and the first direction is from the outer ring fire cap to the distributing fire device.

[0008] In the gas stove of this application, the first premixing chamber inside the burner head receives the mixed gas entering from the first air inlet. This mixed gas is mixed in the premixing chamber, making the mixing of air and gas more uniform. The mixed gas (i.e., including air and gas) after mixing enters the distributing fire device. Since the distance between the opposite two wall surfaces of the gas distributing chamber in the distributing fire device provided in this application gradually increases in the direction from the outer ring fire cap to the distributing fire device, the volume of the gas distributing chamber is increased. When the mixed gas flows in the gas distributing chamber, the mixing area of air and gas is increased, thereby improving the mixing degree of air and gas, making the gas burn more fully, and having a higher thermal efficiency.

[0009] In some embodiments of the present application, the gas distributor includes a plurality of branch air channels, and the plurality of branch air channels are all communicated between the first premixing chamber and the first air distribution chamber; and the plurality of branch air channels are arranged at intervals along the circumferential direction of the gas distributor. In this way, the mixed gas can be evenly dispersed into each area of the outer ring burner cap.

[0010] In some embodiments of the present application, along the direction from the center of the gas distributor to the edge, the caliber of the branch air channel gradually increases. In this way, when the mixed gas passes through the branch air channel, the flow rate is slowed down, which is beneficial to the dispersion of the mixed gas of gas and air around, and further improves the mixing degree.

[0011] In some embodiments of the present application, the gas stove further includes: an ejector tube, the ejector tube is connected to the burner head and has an ejection channel, and the ejection channel is communicated with the first air inlet; the length of the ejection channel is 8-10 times the first diameter, and the first diameter is the diameter length of the smallest inner diameter of the ejection channel. In this way, the ejection negative pressure of the burner head is increased, the ejection ability of the gas stove is enhanced, and energy loss is avoided.

[0012] In some embodiments of the present application, a plurality of first limiting structures are arranged on the gas distributor, and a plurality of second limiting structures are arranged on the outer ring burner cap and are in one-to-one cooperation with the plurality of first limiting structures. Through the cooperation of the first limiting structure and the second limiting structure, the outer ring burner cap is limited on the gas distributor.

[0013] In some embodiments of the present application, the plurality of first limiting structures are unevenly distributed along the circumferential direction of the gas distributor. In this way, it is ensured that the outer burner cap can be accurately positioned when processing the fire avoidance position and the ignition groove.

[0014] In some embodiments of the present application, a second premixing chamber and a second air inlet communicated with the second premixing chamber are further formed inside the burner head, and the second air inlet is also used to introduce the mixed gas; a second air distribution chamber is also formed inside the gas distributor, the first air distribution chamber surrounds the second air distribution chamber, and the second air distribution chamber is communicated with the second premixing chamber.

[0015] In some embodiments of the present application, the gas stove further includes an inner ring burner cap, the inner ring burner cap is connected to the gas distributor and is coaxially arranged with the outer ring burner cap; a first circle of flame outlet holes and a second circle of flame outlet holes are arranged on the side wall of the inner ring burner cap, the first circle of flame outlet holes is arranged above the second circle of flame outlet holes, and the diameters of the first circle of flame outlet holes are all larger than the diameters of the second circle of flame outlet holes; both the first circle of flame outlet holes and the second circle of flame outlet holes are composed of a plurality of second flame outlet holes arranged along the circumferential direction of the inner ring burner cap and spaced apart on the side wall of the inner ring burner cap. In this way, an inner circle of flame can be formed, making the firepower of the gas stove stronger and the combustion more sufficient.

[0016] In some embodiments of the present application, the inner ring burner cap includes: a side wall and a top wall. A plurality of second fire holes are provided on the side wall. The top wall is disposed above the side wall, and an extension portion is provided on the top wall, and the extension portion extends out of the outer surface of the side wall. The gas stove further includes an ignition needle, and the ignition needle discharges electricity to the extension portion of the inner ring burner cap, reducing the distance from the burner cap to the ignition needle and improving the ignition success rate.

[0017] In some embodiments of the present application, the gas stove further includes: a liquid receiving tray and a pot support. Wherein, the liquid receiving tray includes: a bottom plate and a convex portion. The convex portion is provided on the bottom plate, and an installation hole is formed thereon, and at least a part of the burner head passes through the installation hole. The pot support includes a bottom ring and a plurality of pot support claws. The bottom ring is disposed on the bottom plate of the liquid receiving tray, and the length of the bottom ring in the first direction is less than the length of the convex portion of the liquid receiving tray in the first direction; the plurality of pot support claws are spaced apart on the bottom ring, and any one of the pot support claws includes a connecting portion connected to the bottom ring and a supporting portion extending in the direction of the central axis of the bottom ring. There is an installation gap between the supporting portion and the bottom ring, and the installation gap is used to accommodate the convex portion. In this way, the burner head passes through the installation hole on the convex portion of the liquid receiving tray, positioning the burner head and the liquid receiving tray, and it is not easy to generate relative movement between the two; the convex portion of the liquid receiving tray is matched and positioned with the bottom ring of the pot support, making it not easy to generate relative movement between the liquid receiving tray and the pot support.

[0018] In some embodiments of the present application, a supporting surface for supporting the cookware is formed on the supporting portions of the plurality of pot support claws, and at least one convex platform structure is provided on the supporting surface, and the edge or convex surface of the convex platform structure is used to abut against the cookware. In this way, the contact area between the cookware and the pot support claws is increased, making it not easy to generate relative movement between the cookware and the pot support.

[0019] An embodiment of the present application further provides a gas stove, including: a burner head, a divider, and an outer ring burner cap. The divider is disposed on the burner head, and the outer ring burner cap covers the divider. Wherein, a first pre-mixing chamber is formed inside the burner head, a first gas distribution chamber is formed inside the divider, the first gas distribution chamber is communicated with the first pre-mixing chamber, and a first fire hole communicated with the first gas distribution chamber is formed on the outer ring burner cap; along the direction from the divider to the outer ring burner cap, the distance between the opposite two wall surfaces of the first gas distribution chamber in the circumferential direction of the divider gradually increases.

[0020] In this way, the distance between the opposite two wall surfaces of the first gas distribution chamber in the circumferential direction of the divider gradually increases, increasing the volume of the gas distribution chamber, increasing the mixing area of air and gas, improving the mixing degree of air and gas, making the gas burn more fully and having a higher thermal efficiency. Description of the Drawings

[0021] The drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solutions of the present invention, and do not constitute a limitation to the technical solutions of the present invention.

[0022] Figure 1 Schematic diagram of the structure of a gas stove provided by an embodiment of the present application;

[0023] Figure 2 Exploded view of some components of a gas stove provided by an embodiment of the present application;

[0024] Figure 3 Schematic diagram of the structure of a burner head and its components provided by an embodiment of the present application;

[0025] Figure 4 For Figure 3 Schematic diagram of the structure of the burner head and its components shown in another perspective;

[0026] Figure 5 Schematic diagram of the structure of a burner provided by an embodiment of the present application;

[0027] Figure 6 For Figure 5 Top view of the burner shown;

[0028] Figure 7 For Figure 6 Cross-sectional view of the burner shown after being assembled with the outer ring burner cap and the inner ring burner cap in the A-A direction;

[0029] Figure 8 Schematic diagram of the structure of an outer ring burner cap provided by an embodiment of the present application;

[0030] Figure 9 For Figure 8 Top view of the outer ring burner cap shown;

[0031] Figure 10 For Figure 9 Cross-sectional view of the outer ring burner cap shown in the A-A direction;

[0032] Figure 11 Schematic diagram of the structure of an inner ring burner cap provided by an embodiment of the present application;

[0033] Figure 12 For Figure 11 Top view of the inner ring burner cap shown;

[0034] Figure 13 For Figure 12 Cross-sectional view of the inner ring burner cap shown in the A-A direction;

[0035] Figure 14 Schematic diagram of the structure of a liquid pan provided by an embodiment of the present application;

[0036] Figure 15 Schematic diagram of the structure of a pot support provided by an embodiment of the present application.

[0037] Reference numerals: 100, gas stove;

[0038] 10, burner head; 101, first premixing chamber; 102, second premixing chamber; 103, first annular baffle; 104, second annular baffle; 11, first air inlet; 12, second air inlet; 20, burner; 201, first gas distribution chamber; 202, second gas distribution chamber; 203, gas distribution channel; 21, wall surface;

[0039] 211, first wall surface; 212, second wall surface; 213, third wall surface; 214, fourth wall surface;

[0040] 215, fifth wall surface; 24, first limiting structure; 30, outer ring burner cap; 31, first fire outlet hole;

[0041] 311, first layer fire outlet hole; 312, second layer fire outlet hole; 32, first side wall; 321, first upper side wall; 322, first lower side wall; 323, flame stabilizing groove; 33, first top wall; 331, first reinforcing rib; 332, ignition groove; 333, fire avoiding position; 34, second limiting structure; 41, first ejector pipe; 42, second ejector pipe; 401, nozzle; 402, wind shield; 50, inner ring burner cap; 51, second fire outlet hole; 511, first ring fire outlet hole; 512, second ring fire outlet hole; 52, second side wall; 53, second top wall; 531, extension part; 532, second reinforcing rib; 60, ignition pin; 70, liquid receiving tray; 71, bottom plate; 72, convex part; 721, mounting hole; 80, pot support; 81, bottom ring; 82, pot support claw; 821, connecting part; 822, supporting part. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0044] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0045] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "at least one" means one or more, and the meaning of "a plurality" is two or more.

[0046] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, when describing pipelines, the terms "connected" and "coupled" used in the present application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0047] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using words such as "exemplary" or "for example" aims to present relevant concepts in a specific manner.

[0048] With the improvement of people's living standards and the acceleration of the urbanization process, as an essential cooking tool in the kitchen, the market scale of gas stoves has been continuously expanding. Along with the continuous improvement of global environmental awareness and the deepening of the concept of energy conservation and emission reduction, it has promoted the gas stove industry to develop towards the direction of green and low-carbon, and efficient, energy-saving, and safe gas stove equipment has become the goal of the industry's development.

[0049] The burner is the main component of the gas stove. The gas stove mixes and burns gas and air through the burner. However, currently, the burner often has uneven mixing of gas and air and insufficient firepower, resulting in low thermal efficiency. At the same time, the anti-slip performance of the pot racks of most gas stoves is poor, and the pot is likely to slip during the user's cooking process, posing a safety hazard.

[0050] Based on this, an embodiment of the present application provides a gas stove. The mixed gas is introduced into the premixing chamber in the burner head through the air inlet. After being mixed in the premixing chamber, the gas is discharged to the burner, and flows through the gas distribution chamber in the burner where the distance between two opposite circumferential walls gradually increases, and is sent to the outer ring burner cap. This can enable the air and the gas to be fully mixed during the flow process, thereby solving the problem of uneven mixing of air and gas, enabling the gas to burn fully, and improving the thermal efficiency of the burner.

[0051] As Figure 1 shown, an embodiment of the present application provides a gas stove, Figure 1 which is a schematic structural diagram of a gas stove 100 provided by an embodiment of the present application.

[0052] As Figure 2 shown, Figure 2 which is an exploded view of some components of a gas stove 100 provided by an embodiment of the present application. The gas stove 100 may include a burner head 10, a burner 20, and an outer ring burner cap 30. The burner 20 is disposed on the burner head 10, and the outer ring burner cap 30 is covered on the burner 20.

[0053] As Figure 3 shown, Figure 3 which is a schematic structural diagram of a burner head 10 and its components provided by an embodiment of the present application. A first premixing chamber 101 is formed inside the burner head. The first premixing chamber 101 can be used to store the mixed gas of gas and air, and the gas and air can be preliminarily mixed in the first premixing chamber 101. It can be understood that, as Figure 3 shown, the burner head 10 is provided with a first air inlet 11 communicating with the above-mentioned first premixing chamber 101, and the first air inlet 11 is used to introduce the mixed gas.

[0054] Continuing to refer to Figure 3 , the gas stove 100 may further include a first ejector pipe 41. The first ejector pipe 41 has an ejector channel. One end of the first ejector pipe 41 is connected to the first premixing chamber 101 of the burner head through the first air inlet 11, and the other end of the first ejector pipe 41 can be connected to the gas pipe. The gas can enter the first premixing chamber 101 of the burner head through the first ejector pipe 41.

[0055] Among them, the length of the ejector channel is 8 - 10 times the first diameter, and the first diameter is the diameter length of the smallest inner diameter of the ejector channel.

[0056] In this way, the ejector negative pressure of the burner head is increased, the ejector capacity of the gas stove is enhanced, and energy loss is avoided.

[0057] Continuing to refer to Figure 3, one end of the first ejector tube 41 away from the burner head 10 is provided with an ejection port, and a nozzle 401 is arranged at the ejection port. In this way, the gas can enter the first ejector tube 41 through the nozzle.

[0058] Among them, in order to facilitate the fixation of the nozzle 401, as Figure 4 shown, Figure 4 is Figure 3 a schematic structural view of the burner head and its components shown in another angle; the gas stove 100 may further include: a wind deflector 402, the wind deflector 402 is arranged at the ejection port and blocks at least part of the area of the ejection port, and the other unblocked areas of the ejection port are communicated with the external air. The nozzle 401 is arranged on the wind deflector 402 and communicated with the first ejector tube 41. In this way, when the gas passes through the nozzle 401 and enters the first ejector tube 41, it can drive the surrounding air to be drawn into the first ejector tube 41 together with the gas through the unblocked area of the ejection port, realizing the mixing of the gas and the primary air. It can be understood that an opening may be formed at one end of the first ejector tube 41 connected to the burner head 10 so that the first ejector tube 41 is communicated with the first air inlet 11 of the burner head 10. In this way, the mixed gas in the first ejector tube 41 can enter the first premixing chamber 101 through the first air inlet 11.

[0059] As Figure 5 shown, Figure 5 is a schematic structural view of a burner 20 provided by an embodiment of the present application. A first gas distribution chamber 201 is formed in the burner 20. Among them, the first gas distribution chamber 201 is communicated with the first premixing chamber 101 of the burner head 10. In this way, the preliminarily mixed gas in the first premixing chamber 101 can enter the first gas distribution chamber 201 of the burner 20.

[0060] As Figure 6 and Figure 7 shown, Figure 6 is Figure 5 a top view of the burner 20 shown, Figure 7 is Figure 6 a cross-sectional view of the burner 20 and the outer ring burner cap 30 and the inner ring burner cap 50 assembled in the A-A direction. The burner 20 includes a wall surface 21, and the wall surface may have a first wall surface 211 and a second wall surface 212. One end of the second wall surface may be connected to the end of the first wall surface, and the other end of the second wall surface 212 gradually extends away from the first wall surface 211 along the direction from the outer ring burner cap 30 to the burner 20, and a first gas distribution chamber is formed between the first wall surface and the second wall surface.

[0061] In this way, the interval between the extending surfaces of the first wall surface 211 and the second wall surface 212 of the burner 20 is increased, the volume of the first gas distribution chamber 201 is increased, the mixing area of the air and the gas is increased, and the mixing degree of the mixed gas is improved.

[0062] Continue to refer to Figure 3 , a second premixing chamber 102 is also formed inside the burner head. The second premixing chamber 102 can also be used to store the mixed gas of gas and air, and the gas and air are preliminarily mixed in the second premixing chamber 102. It can be understood that, as Figure 3 shown, the burner head 10 is provided with a second air inlet 12 communicating with the second premixing chamber 102 described above, and this second air inlet is also used for introducing the mixed gas. In this way, setting two premixing chambers can improve the mixing degree of the mixed gas, increase the gas mixing area, and improve the firepower of the gas stove. Among them, the first premixing chamber 101 can be arranged around the second premixing chamber 102. In this way, the space occupied by the first premixing chamber 101 and the second premixing chamber 102 can be reduced.

[0063] The burner head may include: a first annular enclosing plate 103 and a second annular enclosing plate 104. The first annular enclosing plate 103 is arranged around the second annular enclosing plate 104, and the first premixing chamber 101 can be formed between the first annular enclosing plate 103 and the second annular enclosing plate 104; the second premixing chamber 102 is formed inside the second annular enclosing plate 104.

[0064] Among them, the gas stove may further include: a second ejector tube 42. One end of the second ejector tube 42 is communicated with the second air inlet 12, and the other end of the second ejector tube 42 can also be communicated with a nozzle. The second ejector tube 42 can refer to the description of the above-mentioned first ejector tube 41, and details are not described herein again in this application.

[0065] Continue to refer to Figure 7 , the wall surface 21 of the burner 20 may further have a third wall surface 213 and a fourth wall surface 214. The third wall surface 213 may be a bottom wall surface, and the fourth wall surface 214 is annularly arranged on the third wall surface 213, and the third wall surface 213 is connected to the fourth wall surface 214. In this way, the third wall surface 213 and the fourth wall surface 214 enclose and form a second gas distribution chamber.

[0066] In addition, an air inlet hole may be provided on the third wall surface 213, and the air inlet hole is communicated with the second premixing chamber 102. The central axis of the air inlet hole may be coaxially arranged with the central axis of the fourth wall surface 214, and this application does not make a limitation on this.

[0067] In this way, the mixed gas preliminarily mixed in the second premixing chamber 102 can enter the second gas distribution chamber 202 of the burner 20.

[0068] In some embodiments, the wall surface 21 of the burner may further include a fifth wall surface 215. The fifth wall surface 215 is arranged on the side of the third wall surface 213 away from the fourth wall surface 214 and is connected to the third wall surface 213. The fifth wall surface 215 may also be annularly arranged, and the fifth wall surface 215 can cover the first annular enclosing plate 103.

[0069] Among them, the fuel distributor 20 may further include: a sub-air passage 203, and the sub-air passage 203 is communicated between the first premixing chamber 101 and the first air distribution chamber 201.

[0070] In some embodiments, the sub-air passage 203 may be an air distribution pipe, and the air distribution pipe may penetrate through the fifth wall surface 215 and the first wall surface 211 respectively to communicate the first premixing chamber 101 with the first air distribution chamber 201.

[0071] In some embodiments of the present application, a plurality of sub-air passages 203 may be provided, and the plurality of sub-air passages 203 are uniformly spaced along the circumferential direction of the fuel distributor 20. Exemplarily, as Figure 5 shown, the number of the sub-air passages 203 may be 3, and the number of the sub-air passages may also be 2 or 4.

[0072] In some embodiments, along the direction from the center of the fuel distributor to the edge, the diameter of the sub-air passage gradually increases. That is, along the direction from the first premixing chamber to the first air distribution chamber, the distance between the circumferential walls of the air distribution pipe gradually increases.

[0073] In this way, when the mixed gas passes through the sub-air passage, the flow rate is slowed down, which is beneficial to the dispersion of the mixed gas of the fuel gas and the air in all directions, and further improves the mixing degree thereof.

[0074] Such as Figure 8 shown, Figure 8 FIG. 23 is a schematic structural diagram of an outer ring burner cap 30 provided by an embodiment of the present application. A first fire outlet hole 31 communicated with the first air distribution chamber 201 of the fuel distributor 20 is formed on the outer ring burner cap 30. A first layer of fire outlet holes 311 and a second layer of fire outlet holes 312 are provided on the first side wall 32 of the outer ring burner cap 30, and the first layer of fire outlet holes 311 is located above the second layer of fire outlet holes 312. The first layer of fire outlet holes 311 and the second layer of fire outlet holes 312 are both composed of a plurality of first fire outlet holes 31 uniformly spaced along the circumferential direction of the first side wall 32 of the outer ring burner cap 30, and the diameters of the first layer of fire outlet holes 311 are all larger than the diameters of the second layer of fire outlet holes 312.

[0075] It can be understood that the outer ring diameter and the inner ring diameter of the outer ring burner cap 30 can be specifically set according to actual situations and will not be further limited herein. Exemplarily, the outer ring diameter of the outer ring burner cap 30 may be 125 mm, and the inner ring diameter may be 84 mm.

[0076] It is understandable that the quantity, diameter, and horizontal inclination angle of the first-layer flame outlet holes 311 and the second-layer flame outlet holes 312 of the outer ring flame cover 30 can be specifically set according to actual conditions and will not be further limited here. Exemplarily, the quantity of the first-layer flame outlet holes 311 can be 75 - 85, for example, 75, 78, 80, 82, 85; the diameter of the first-layer flame outlet holes 311 can be 2.0 - 3.0 mm, for example, 2.0 mm, 2.5 mm, 3.0 mm; the horizontal inclination angle of the first-layer flame outlet holes 311 can be 28° - 32°, for example, 28°, 30°, 32°; the quantity of the second-layer flame outlet holes 312 can be 85 - 90, for example, 85, 88, 90; the diameter of the second-layer flame outlet holes 312 can be 1.4 - 1.8 mm, for example, 1.4 mm, 1.6 mm, 1.8 mm; the horizontal inclination angle of the first-layer flame outlet holes 311 can be 40° - 50°, for example, 40°, 45°, 50°.

[0077] As Figure 9 and Figure 10 shown, Figure 9 is Figure 8 the top view of the outer ring flame cover 30 in the middle and outside, Figure 10 is Figure 9 the cross-sectional view of the outer ring flame cover 30 in the middle and outside in the A - A direction. The first side wall 32 of the outer ring flame cover 30 includes a first upper side wall 321 and a first lower side wall 322. The first upper side wall 321 gradually thickens along the direction from the flame divider to the outer ring flame cover. One side close to the central axis is vertical, and the side far from the central axis has a horizontal inclination angle. In this way, the depth of the first flame outlet hole 31 can be increased, the off-flame condition can be avoided, and the burner can be used more safely.

[0078] It is understandable that the horizontal inclination angle of the side of the first upper side wall 321 of the outer ring flame cover 30 far from the central axis can be specifically set according to actual conditions and will not be further limited here. Exemplarily, the horizontal inclination angle can be 85°, and at this time, the depth of the first flame outlet hole 31 is 4 mm.

[0079] Continue to refer to Figure 10 , a flame stabilizing groove 323 is provided on the first side wall 32 of the outer ring flame cover 30. The flame stabilizing groove 323 is strip-shaped and is arranged at the connection of the first upper side wall 321 and the second first side wall 322. The second flame outlet of the outer ring flame cover 30 can be located in the flame stabilizing groove 323.

[0080] It is understandable that the width of the flame stabilizing groove 323 can be specifically set according to actual conditions and will not be further limited here. Exemplarily, the width of the flame stabilizing groove 323 is 0.6 mm - 1.0 mm, for example, 0.6 mm, 0.8 mm, 1.0 mm.

[0081] Continue to refer to Figure 9 andFigure 10 Moreover, the outer ring burner cap 30 may further include a first top wall 33. In order to effectively reduce the weight of the outer ring burner cap 30, the thickness of the first top wall 33 of the outer ring burner cap 30 is set to be 1.3 mm - 1.4 mm, such as 1.3 mm, 1.35 mm, 1.4 mm. The thickness of the first top wall 33 being thinner than that of the first side wall 32 can reduce the weight of the outer ring burner cap 30, but it will also reduce the mechanical strength of the outer ring burner cap 30, and there is a risk of deformation after long-term combustion. In view of this, a first reinforcing rib 331 is provided along the circumferential direction of the outer ring burner cap 30 on the side of the first top wall 33 close to the fuel distributor 20. The width of the first reinforcing rib 331 along the circumferential direction is 1.8 mm - 2.2 mm, such as 1.8 mm, 2.0 mm, 2.2 mm. In this way, the structural strength of the outer ring burner cap 30 can be improved.

[0082] It can be understood that one first reinforcing rib 331 can be provided along the circumferential direction of the outer ring burner cap 30, or multiple first reinforcing ribs 331 can be provided, such as 2, 3, 4. When there are multiple first reinforcing ribs 331, the first reinforcing ribs 331 are arranged at intervals along the circumferential direction of the first top wall 33 of the outer ring burner cap 30.

[0083] Continue to refer to Figure 5 and Figure 8 The fuel distributor 20 is provided with a plurality of first limiting structures 24, and the outer ring burner cap 30 is provided with a plurality of second limiting structures 34. The plurality of first limiting structures 24 are in one-to-one cooperation with the plurality of second limiting structures 34, so that the outer ring burner cap 30 is limited on the fuel distributor 20 to avoid incorrect placement during use.

[0084] Exemplarily, the number of the first limiting structures 24 is 2, 3, 4, 5. In order to ensure accurate positioning of the outer ring burner cap 30 when processing the ignition groove 332 and the flame avoidance position 333, the plurality of second limiting structures 34 are unevenly distributed along the circumferential direction of the outer ring burner cap 30.

[0085] In a possible mechanical design, the first limiting structure can be one of a limiting hole and a limiting pin, and the first limiting structure can be the other of the limiting hole and the limiting pin.

[0086] In another possible structural design, the first limiting structure can be one of a screw and an internal thread, and the first limiting structure can be the other of the screw and the internal thread.

[0087] Continue to refer to Figure 9 and Figure 2 Moreover, the outer ring burner cap 30 is provided with an ignition groove 332 for guiding the inner ring flame to the outer ring burner cap 30, so that when the gas in the inner ring burner cap 50 is ignited by the ignition needle 60, the outer ring burner cap 30 can quickly transfer the flame to the outer ring, thereby igniting the gas in the outer ring burner cap 30.

[0088] Continuing to refer to Figure 2 , the gas stove may further include an inner ring burner cap 50, and the inner ring burner cap 50 is disposed on the burner 20. As Figure 11 shown, Figure 11 FIG. is a schematic structural view of an inner ring burner cap 50 provided in an embodiment of the present application. Second fire holes 51 communicating with the second gas distribution cavity of the burner 20 are formed on the inner ring burner cap 50. The central axis of the inner ring burner cap 50 is coaxially arranged with the central axis of the outer ring burner cap 30. A first circle of fire holes 511 and a second circle of fire holes 512 are disposed on a second side wall 52 of the inner ring burner cap 50, and the first circle of fire holes 511 is located above the second circle of fire holes 512. Both the first circle of fire holes 511 and the second circle of fire holes 512 are composed of a plurality of second fire holes 51 uniformly spaced along the circumferential direction of the second side wall 52 of the inner ring burner cap 50, and the diameters of the first circle of fire holes 511 are all larger than the diameters of the second circle of fire holes 512.

[0089] It can be understood that the diameter of the inner ring burner cap 50 can be specifically set according to actual situations and will not be further limited herein. Exemplarily, the diameter of the inner ring burner cap 50 can be 46 mm.

[0090] It can be understood that the number and horizontal inclination angles of the first circle of fire holes 511 and the second circle of fire holes 512 of the inner ring burner cap 50 can be equal, and can be specifically set according to actual situations and will not be further limited herein. Exemplarily, the number of the first circle of fire holes 511 and the second circle of fire holes 512 of the inner ring burner cap 50 is 30, and the horizontal inclination angle is 30°.

[0091] The diameters of the first circle of fire holes 511 and the second circle of fire holes 512 of the inner ring burner cap 50 can be specifically set according to actual situations and will not be further limited herein. Exemplarily, the diameter of the first circle of fire holes 511 can be 2.0 - 3.0 mm, for example, 2.0 mm, 2.5 mm, 3.0 mm, and the diameter of the second circle of fire holes 512 can be 1.4 - 1.8 mm, for example, 1.4 mm, 1.6 mm, 1.8 mm.

[0092] Continuing to refer to Figure 11 , the inner ring burner cap 50 may further include a second top wall 53. The second top wall 53 is disposed above the second side wall 52, and an extension portion 531 is disposed on the second top wall 53, and the extension portion 531 extends out of the outer surface of the second side wall 52.

[0093] Continuing to refer to Figure 2 , the gas stove 100 further includes an ignition pin 60, and the ignition pin 60 discharges to the extension portion 531 of the inner ring burner cap 50. In this way, the distance from the ignition pin 60 to the inner ring burner cap 50 can be reduced, and the success rate of ignition can be improved.

[0094] AsFigure 12 and Figure 13 as shown Figure 12 is Figure 11 a top view of the inner ring burner cap 50 shown Figure 13 is Figure 12 a cross-sectional view of the inner ring burner cap 50 shown in the A-A direction. The second side wall 52 on the inner ring burner cap 50 gradually thickens along the direction from the fuel divider to the outer ring burner cap. Its (inner) wall surface close to the central axis is vertical, and its (outer) wall surface far from the central axis has a horizontal inclination angle. In this way, the depth of the second fire hole 51 can be increased, the off-flame condition can be avoided, and the burner can be used more safely.

[0095] It can be understood that the horizontal inclination angle of the second side wall 52 of the inner ring burner cap 50 on the side far from the central axis can be specifically set according to the actual situation and will not be further limited here. Exemplarily, the horizontal inclination angle can be 85.5°. At this time, the depth of the second fire hole 51 is 4.6 mm, and the distance from the second fire hole 51 to the ignition needle 60 is 4.7 mm. In this way, the generation of the off-flame condition is effectively avoided, and the distance from the ignition needle 60 to the inner ring burner cap 50 is further reduced, improving the ignition success rate.

[0096] Continuing to refer to Figure 13 , in order to effectively reduce the weight of the inner ring burner cap 50, the thickness of the second top wall 53 of the inner ring burner cap 50 is set to 1.4 mm - 1.6 mm, such as 1.4 mm, 1.5 mm, 1.6 mm. The thinner thickness of the second top wall 53 than that of the second side wall 52 can reduce the weight of the inner ring burner cap 50, but it will also reduce the structural strength of the inner ring burner cap 50, and there is a risk of deformation after long-term combustion. In view of this, a second reinforcing rib 532 can be arranged circumferentially on the side of the second top wall 53 of the inner ring burner cap 50 close to the fuel divider 20.

[0097] Exemplarily, the height of the second reinforcing rib 532 can be 1 mm, the inner diameter can be 19 mm, and the outer diameter can be 21 mm. It can be understood that a whole circle of reinforcing rib can be arranged circumferentially along the inner ring burner cap 50, or multiple reinforcing ribs can be arranged at intervals circumferentially along the second top wall 53 of the inner ring burner cap 50, such as 2, 3, or 4. In this way, the structural strength of the second top wall 53 of the inner ring burner cap 50 can be improved, and the burner cap can be prevented from deforming after long-term combustion.

[0098] The outer ring burner cap 30 and the inner ring burner cap 50 of a gas stove 100 provided by an embodiment of the present application are made of a metal material. Exemplarily, the materials of the outer ring burner cap 30 and the inner ring burner cap 50 are copper, cast iron, or stainless steel. In the embodiment of the present application, the materials of the outer ring burner cap 30 and the inner ring burner cap 50 are preferably HPb59-1 copper alloy.

[0099] As Figure 2As shown in the figure, a gas stove 100 provided by an embodiment of the present application further includes a liquid receiving tray 70. Figure 14 It is a schematic structural diagram of a liquid receiving tray 70 provided by an embodiment of the present application. As Figure 14 shown, the liquid receiving tray 70 includes a bottom plate 71 and a protruding portion 72. The protruding portion 72 is arranged on the bottom plate 71, and an installation hole 721 is formed on the protruding portion 72. At least a part of the burner head 10 passes through the installation hole 721. In this way, at least a part of the burner head 10 cooperates with the installation hole 721 to realize the positioning of the burner head 10 and the liquid receiving tray 70, so that it is not easy to generate relative movement between the two.

[0100] As Figure 2 shown, a gas stove 100 provided by an embodiment of the present application further includes a pot support 80. Figure 15 It is a schematic structural diagram of a pot support 80 provided by an embodiment of the present application. As Figure 15 shown, the pot support 80 includes a bottom ring 81 and a plurality of pot support claws 82. The bottom ring 81 is arranged on the bottom plate 71 of the liquid receiving tray 70, and the length of the bottom ring 81 in the direction from the sub - burner 20 to the outer ring burner cover 30 is less than the length of the protruding portion 72 of the liquid receiving tray 70 in the direction from the sub - burner 20 to the outer ring burner cover 30; the plurality of pot support claws 82 are arranged at intervals on the bottom ring 81. Any pot support claw 82 includes a connecting portion 821 connected to the bottom ring 81 and a supporting portion 822 extending in the direction of the central axis of the bottom ring 81. There is an installation gap between the supporting portion 822 and the bottom ring 81, and the installation gap is used to accommodate the protruding portion 72.

[0101] It can be understood that the length of the protruding portion 72 of the liquid receiving tray 70 in the direction from the sub - burner 20 to the outer ring burner cover 30, the length of the bottom ring 81 of the pot support 80 in the direction from the sub - burner 20 to the outer ring burner cover 30, and the installation gap between the supporting portion 822 and the bottom ring 81 can be specifically set according to actual situations, and no further limitation is made here. Exemplarily, the length of the protruding portion 72 of the liquid receiving tray 70 in the direction from the sub - burner 20 to the outer ring burner cover 30 is 1 mm more than the length of the bottom ring 81 of the pot support 80 in the direction from the sub - burner 20 to the outer ring burner cover 30, and the installation gap between the supporting portion 822 and the bottom ring 81 is 5 mm. In this way, the positioning of the liquid receiving tray 70 and the pot support 80 in the height direction can be realized.

[0102] As Figure 14 and Figure 15 shown, both the liquid receiving tray 70 and the bottom ring 81 of the pot support 80 are set to be square. In this way, the positioning of the liquid receiving tray 70 and the pot support 80 in the horizontal plane direction can be realized.

[0103] Continue to refer to Figure 15, a support surface for supporting cookware is formed on the support portions 822 of multiple cooktop support claws 82, and at least one convex platform structure is provided on the support surface. Multiple edges of the convex platform structure are all used for abutting against the cookware. In this way, the contact area between the cookware and the cooktop support claws is increased, and relative movement between the cookware and the cooktop support 80 is not likely to occur.

[0104] Exemplarily, the height of the cooktop support claws 82 of the cooktop support 80 is 56.6 mm. In this way, the flame of the gas stove can transfer energy to the cookware to the greatest extent, meeting the performance requirements of high firepower and high energy efficiency of the gas stove.

[0105] Exemplarily, in a gas stove 100 provided in an embodiment of the present application, the heat load of the burner can be 5.2 kW, and the thermal efficiency can be 66.7%.

[0106] As mentioned above, the above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A gas stove, characterized in that, Comprising: A burner head, inside which a first premixing chamber and a first air inlet communicating with the first premixing chamber are formed, and the first air inlet is used for introducing mixed gas; A burner, arranged on the burner head, inside which a first gas distribution chamber is formed, and the first gas distribution chamber communicates with the first premixing chamber; An outer ring burner cap, covering the burner, and a first fire outlet hole communicating with the first gas distribution chamber is formed on the outer ring burner cap; Wherein, along a first direction, the distance between two opposite wall surfaces of the first gas distribution chamber in the circumferential direction of the burner gradually increases, and the first direction is the direction from the outer ring burner cap to the burner.

2. The gas stove according to claim 1, wherein The burner further comprises: A plurality of gas distribution channels, all of which communicate between the first premixing chamber and the first gas distribution chamber; and the plurality of gas distribution channels are arranged at intervals in the circumferential direction of the burner.

3. The gas stove according to claim 2, characterized in that, Along the direction from the center of the burner to the edge, the caliber of the gas distribution channel gradually increases.

4. A gas stove according to claim 1, characterized in that The gas stove further comprises: An ejector tube, connected to the burner head and having an ejector channel, and the ejector channel communicates with the first air inlet; The length of the ejector channel is 8-10 times of a first diameter, and the first diameter is the diameter length of the smallest inner caliber part of the ejector channel.

5. A gas stove according to claim 1, characterized in that, A plurality of first limiting structures are arranged on the burner, and a plurality of second limiting structures are arranged on the outer ring burner cap and are in one-to-one cooperation with the plurality of first limiting structures. The first limiting structures and the second limiting structures cooperate to limit the outer ring burner cap on the burner; the plurality of first limiting structures are unevenly distributed in the circumferential direction of the burner.

6. The gas stove according to claim 1, characterized in that, A second premixing chamber and a second air inlet communicating with the second premixing chamber are further formed inside the burner head, and the second air inlet is also used for introducing mixed gas; A second gas distribution chamber is further formed inside the burner, the first gas distribution chamber surrounds the second gas distribution chamber, and the second gas distribution chamber communicates with the second premixing chamber; The gas stove further comprises: an inner ring burner cap, connected to the burner and coaxially arranged with the outer ring burner cap; a first circle of fire outlet holes and a second circle of fire outlet holes are arranged on the side wall of the inner ring burner cap, the first circle of fire outlet holes is arranged above the second circle of fire outlet holes, and the diameters of the first circle of fire outlet holes are all larger than those of the second circle of fire outlet holes; both the first circle of fire outlet holes and the second circle of fire outlet holes are composed of a plurality of second fire outlet holes arranged along the circumferential direction of the inner ring burner cap and spaced on the side wall of the inner ring burner cap.

7. A gas stove according to claim 6, characterized in that, The inner ring burner cap comprises: A side wall, on which a plurality of the second fire outlet holes are arranged; A top wall, arranged above the side wall, and an extension part is arranged on the top wall and extends out of the outer surface of the side wall; The gas stove further comprises: an ignition needle, which is used for discharging to the extension part.

8. A gas stove according to claim 1, characterized in that The gas stove further comprises: A liquid receiving tray, and the liquid receiving tray comprises: A bottom plate; A convex part, arranged on the bottom plate, and an installation hole is formed on the convex part, and at least part of the burner head passes through the installation hole; A pot support, arranged on the bottom plate, and the pot support comprises: A bottom ring, the bottom ring is arranged on the bottom plate, and the length of the bottom ring in the first direction is less than the length of the raised portion in the first direction; A plurality of pot rack support claws, the plurality of pot rack support claws are arranged at intervals on the bottom ring. Any one of the pot rack support claws includes a connecting portion connected to the bottom ring and a supporting portion extending in the direction of the central axis of the bottom ring. There is an installation gap between the supporting portion and the bottom ring, and the installation gap is used to accommodate the raised portion.

9. A gas stove according to claim 8, wherein Support surfaces for supporting cookware are formed on the supporting portions of the plurality of pot rack support claws, and at least one convex platform structure is arranged on the support surfaces. A plurality of edges of the convex platform structure are all used for abutting against the cookware.

10. A gas stove, characterized in that, Comprising: A burner head, a first pre-mixing chamber is formed inside the burner head; A burner, the burner is arranged on the burner head, a first gas distribution chamber is formed in the burner, and the first gas distribution chamber is communicated with the first pre-mixing chamber; An outer ring burner cap, the outer ring burner cap is covered on the burner, and a first fire outlet hole communicated with the first gas distribution chamber is formed on the outer ring burner cap; Wherein, along the direction from the burner to the outer ring burner cap, the distance between the opposite two wall surfaces of the first gas distribution chamber in the circumferential direction of the burner gradually increases.

Images