A pot support and a hob

Abstract

A kind of pot support and stove, it is related to kitchen stove field, for solving the problem that the heat efficiency promotion effect of energy-gathering dish to stove is not obvious.Pot support includes: energy-gathering dish, energy-gathering dish has upper ring surface and lower ring surface, the diameter of upper ring surface is greater than the diameter of lower ring surface, lower ring surface is used to install burner;Energy-gathering plate, energy-gathering plate is set on the upper ring surface of energy-gathering dish, and from the edge of the upper ring surface of energy-gathering dish to the axis direction of energy-gathering dish, energy-gathering plate is annular and the middle part of energy-gathering plate is provided with flame passage, the lower side of energy-gathering plate and the inner side of energy-gathering dish form energy-gathering cavity, and energy-gathering cavity is used to store air.This application is heated by gas again for burning by energy-gathering cavity, to improve the heat efficiency of stove, can significantly improve the heat efficiency of stove.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of kitchen stoves, in particular to a pot support and a stove. BACKGROUND

[0002] In order to improve the thermal efficiency of the gas stove, make the heat production of the gas stove more concentrated, and the heating speed of the pot faster, a pot support for energy concentration appears. The core structure for energy concentration on the pot support is an energy concentration disc, which is divided into single-layer and double-layer. The single-layer energy concentration disc has low cost and is easy to manufacture, but in order to meet the secondary air supplement, the opening angle of the conical surface of the energy concentration disc is large, the heat insulation and energy concentration effect is poor. The double-layer energy concentration disc has good heat insulation capacity and energy concentration effect, but the structure is complex, the processing difficulty is large, and the cost is high.

[0003] In order to reduce the cost, the single-layer energy concentration disc is adopted in the prior art. However, the single-layer energy concentration disc can only gather the flame through the inclined inner wall of the energy concentration disc to produce a certain heat concentration effect, but the heat insulation effect of the energy concentration disc itself is poor, and there is still obvious heat loss, so that the heat efficiency of the energy concentration disc to the burner is not obvious. SUMMARY

[0004] The present application provides a pot support and a stove, which is used to solve the problem that the energy concentration disc does not obviously improve the thermal efficiency of the burner.

[0005] The present application provides a pot support, which comprises: an energy concentration disc, the energy concentration disc has an upper ring surface and a lower ring surface, the diameter of the upper ring surface is larger than that of the lower ring surface, and the lower ring surface is used to install a burner; an energy concentration plate, the energy concentration plate is arranged on the upper ring surface of the energy concentration disc and extends from the edge of the upper ring surface of the energy concentration disc to the axis direction of the energy concentration disc, the energy concentration plate is annular, and a flame passage is arranged in the middle part of the energy concentration plate, a energy concentration cavity is formed between the lower side of the energy concentration plate and the inner side of the energy concentration disc, and the energy concentration cavity is used to store air.

[0006] The pot support in the present application is used, the burner is located in the energy gathering disc, the burner is connected with the gas and burns, at this time, the flame burns upward from the flame channel and heats the pot placed on the pot support. The energy gathering cavity is surrounded between the energy gathering plate and the energy gathering disc, the air in the energy gathering cavity is in direct contact with the flame, and the air in the area is heated when the gas burns; at the same time, the secondary air flows into the flame from the gap between the lower ring surface and the burner when the gas burns, at this time, the flow rate of the secondary air at the gap between the lower ring surface and the burner is accelerated due to the narrow gap; according to the Venturi effect, the air in the energy gathering cavity is partially sucked into the flame to participate in the flame burning again; at this time, the gas in the energy gathering cavity is low in pressure due to the partial use, and part of the air supplemented from the gap between the lower ring surface and the burner is drained to supplement the air loss in the energy gathering cavity, the air is heated again by passing through the flame, and a gas circulation is formed. Under this circulation, the air heated by the flame can participate in the burning again, so that the heat can be effectively utilized by the burner to improve the thermal efficiency of the burner.

[0007] In some embodiments of the present application, the pot support further comprises an extension, the extension is annular, and the extension is arranged at the lower ring surface of the energy gathering disc, the extension extends from the lower ring surface of the energy gathering disc to the side away from the upper ring surface of the energy gathering disc, and the distance between the inner side wall of the extension and the axis of the energy gathering disc gradually decreases in the direction away from the upper ring surface of the energy gathering disc, and a gap is left between the inner side wall of the extension and the burner installed in the pot support for supplementing secondary air when the burner burns.

[0008] The extension is arranged on the pot support, the gap between the burner and the pot support is extended along the axis direction of the energy gathering disc when the burner is installed in the pot support, and then a relatively stable flow rate of the secondary air supplemented from the gap between the burner and the pot support can be obtained, so that a more stable Venturi effect between the air in the energy gathering cavity and the flame is formed when the air is supplemented into the gas, the gas circulation between the energy gathering cavity and the flame is more intense, and the thermal efficiency of the burner is more stable.

[0009] In some embodiments of the present application, the pot support further comprises a plurality of support frames, the plurality of support frames are arranged on the energy gathering disc, and the upper end surface of the support frame is a support surface, the pot support supports the pot through the support surface, and the support surface is located on the side of the upper ring surface of the energy gathering disc away from the lower ring surface of the energy gathering disc.

[0010] The support frame is higher than the energy gathering disc and the energy gathering plate, so that when the pot is placed, only the support frame is supported, and the pot can avoid directly contacting the energy gathering disc or the energy gathering plate to deform the energy gathering disc or the energy gathering plate; the energy gathering disc and the energy gathering plate can be protected by this arrangement.

[0011] In some embodiments of the present application, the plurality of support frames are provided with support slopes, the support slopes are in abutment with the support surfaces, and the support slopes extend along the direction of the axis of the support surface to the concentrator disc. The support slopes can support smaller-sized pots. Through the support slopes in the plurality of support frames, a conical surface can be formed, and the conical surface can support pots of different diameters.

[0012] In some embodiments of the present application, the support frame further comprises a stepped support surface, the stepped support surface is arranged between the support surface and the support slope, and the stepped support surface is used to support flat-bottomed pots. Some flat-bottomed pots are small in size. When the support slope is used for support, the pot is prone to shaking due to unstable support surface during heating. The stepped support surface in the plurality of support frames can form a horizontal annular support surface, thereby stably supporting the small-sized flat-bottomed pot and preventing tilting.

[0013] In some embodiments of the present application, the number of stepped support surfaces on each support frame is set to be multiple, and the plurality of stepped support surfaces are sequentially arranged from the support surface to the support slope. The plurality of stepped support surfaces can make the pot support frame have a plurality of support planes of different sizes, thereby supporting more sizes of flat-bottomed pots.

[0014] In some embodiments of the present application, the support slope and the stepped support surface adjacent to the support slope are connected through a round corner, and the round corner is used to support convex-bottomed pots. When the pot is a convex-bottomed pot, the support slope of the plurality of support frames can support the convex-bottomed pot, and the round corner can provide an additional friction force for the convex-bottomed pot, thereby making the support of the pot support frame more stable.

[0015] In some embodiments of the present application, the pot support frame further comprises a protruding portion, the protruding portion is arranged between the extending portion and the concentrator disc, the protrusion of the protruding portion faces the upper annular surface of the concentrator disc, the protruding portion is annular, and the projection of the protruding portion along the axis direction of the concentrator disc completely falls into the flame passage of the concentrator plate, the upper surface of the protruding portion and the inner wall of the concentrator disc form a liquid collecting groove, the liquid collecting groove is annular, and the liquid collecting groove is used to collect the overflow of the pot. When the pot overflows, the overflow falls along the edge of the pot, passes through the flame passage on the concentrator plate, falls into the liquid collecting groove between the protruding portion and the concentrator disc, and is collected by the liquid collecting groove, thereby reducing the cleaning difficulty of the stove.

[0016] In some embodiments of the present application, the protruding portion is curved and formed from one side of the concentrator disc close to the lower annular surface, and the bending direction of the concentrator disc faces the upper annular surface of the concentrator disc. The bending area of the concentrator disc and the inner wall of the concentrator disc on the upper side of the bending area of the concentrator disc form a liquid collecting groove. When the protruding portion is curved and formed from a part of the concentrator disc, the production of the protruding portion can be more convenient, and the weight of the pot support frame can be reduced.

[0017] A cooker is provided, comprising: a housing, a burner, a gas pipe, and a pot support. The housing has mounting holes. The burner and the gas pipe are both disposed inside the housing. The gas pipe is connected to the burner to supply gas to the burner. The burner includes a burner head that extends out of the housing through the mounting holes. The pot support is the aforementioned pot support, which is disposed on the housing and located outside the mounting holes. The portion of the burner head located outside the housing extends into the lower annular surface of the energy-concentrating plate, and the portion of the burner head located outside the housing is located inside the pot support. The flame from the burner head passes through the flame channel of the energy-concentrating plate to heat the pot located on the pot support.

[0018] This stove uses a pot support to hold the pot. When the burner in the burner heats the pot, the flame rises from the gas passage in the pot support to heat the pot located on the pot support. At this time, the pot support improves the thermal efficiency of the flame, so that the stove can heat the pot better when using the pot support. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0020] Figure 1 This is a schematic diagram of a stove in the prior art provided in the embodiments of this application.

[0021] Figure 2 A schematic diagram of the new pot support provided in the embodiments of this application.

[0022] Figure 3 This is one of the schematic diagrams illustrating the working principle of the pot support provided in the embodiments of this application.

[0023] Figure 4 This is one of the connection diagrams of the energy-concentrating disk and the energy-concentrating plate provided in the embodiments of this application.

[0024] Figure 5 This is the second schematic diagram showing the connection between the energy-concentrating disk and the energy-concentrating plate provided in the embodiments of this application.

[0025] Figure 6 The second schematic diagram illustrates the working principle of the pot support provided in the embodiments of this application.

[0026] Figure 7 This is one of the perspective views of the pot support provided in the embodiments of this application.

[0027] Figure 8 This is a second perspective view of the pot support provided in the embodiments of this application.

[0028] Figure 9This is the third perspective view of the pot support provided in the embodiments of this application.

[0029] Figure 10 This is a front view schematic diagram of the support frame provided in an embodiment of this application.

[0030] Figure 11 The fourth perspective view of the pot support provided in the embodiments of this application.

[0031] Figure 12 Provided for the embodiments of this application Figure 11 A magnified view of a portion of point A in the middle.

[0032] Figure 13 This is one of the left-side schematic diagrams of the support frame provided in the embodiments of this application.

[0033] Figure 14 This is a second left-side schematic diagram of the support frame provided in the embodiments of this application.

[0034] Figure 15 This is one of the cross-sectional schematic diagrams of the pot support provided in the embodiments of this application.

[0035] Figure 16 This is a second cross-sectional schematic diagram of the pot support provided in the embodiments of this application.

[0036] Figure 17 This is the third cross-sectional schematic diagram of the pot support provided in the embodiments of this application.

[0037] Figure 18 The fourth cross-sectional schematic diagram of the pot support provided in the embodiments of this application.

[0038] Figure 19 This is a three-dimensional schematic diagram of the stove provided in the embodiments of this application.

[0039] Figure 20 This is a top view of the burner head provided in an embodiment of this application.

[0040] Reference numerals: 1-Outer shell; 11-Mounting hole; 12-Panel; 13-Control knob; 2-Burner; 21-Burner head; 211-Center burner cap; 212-Inner burner cap; 213-Outer burner cap; 3-Pot support; 31-Energy concentrator; 311-Upper ring surface; 312-Lower ring surface; 313-Energy concentrator cavity; 32-Energy concentrator plate; 321-Flame channel; 33-Extension; 34-Support frame; 341-Support surface; 342-Support slope; 343-Stepped support surface; 344-Rounded corner; 35-Protrusion; 36-Support base; 361-Rubber pad; 362-Support ring seat; 363-Foot; 4-Pot. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0045] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0046] Please refer to Figure 1 A cooker hood includes a housing 1, a burner 2, and a pot support 3. The burner 2 is mounted on the housing 1 and includes a burner head 21 that extends outside the housing 1. The pot support 3 is mounted on the housing 1, and the burner head 21 is installed inside the pot support 3. The pot support 3 includes an energy-concentrating plate 31 with an inclined angle, which can concentrate the flame on the burner head 21 to improve the heating effect.

[0047] Please continue to refer to Figure 1However, the effect that the energy-concentrating plate 31 can achieve is only to concentrate the flame through the inner wall of the energy-concentrating plate 31 so that the flame can be heated in a concentrated manner. When the flame is burning, the heat is still dissipated into the air, resulting in a lot of heat loss. Therefore, the use of the energy-concentrating plate 31 does not significantly improve the thermal efficiency of the burner 2 when heating.

[0048] Please refer to Figure 2 In view of this, a new pot support 3 is provided, including an energy-concentrating plate 31 and an energy-concentrating plate 32. The energy-concentrating plate 31 has an upper annular surface 311 and a lower annular surface 312. The diameter of the upper annular surface 311 is larger than the diameter of the lower annular surface 312. The lower annular surface 312 is used to install the burner head 21. The energy-concentrating plate 32 is disposed on the upper annular surface 311 of the energy-concentrating plate 31 and extends from the edge of the upper annular surface 311 of the energy-concentrating plate 31 towards the axis of the energy-concentrating plate 31. The energy-concentrating plate 32 is annular and has a flame channel 321 in the middle. An energy-concentrating cavity 313 is formed between the lower side of the energy-concentrating plate 32 and the inner side of the energy-concentrating plate 31. The energy-concentrating cavity 313 is used to store air.

[0049] Please refer to Figure 3 In this application, when the pot support 3 is in use, the burner head 21 is located inside the energy-concentrating plate 31. Gas is introduced into the burner head 21 and combustion occurs. At this time, the flame burns upwards from the flame channel 321 and heats the pot 4 placed on the pot support 3. The energy-concentrating plate 32 and the energy-concentrating plate 31 form an energy-concentrating cavity 313. Air is contained within the energy-concentrating cavity 313, and this air is in direct contact with the flame. When the gas burns, it heats the air in this area. Simultaneously, during gas combustion, secondary air flows into the flame from the gap between the lower annular surface 312 and the burner head 21 (e.g., ...). Figure 3 As shown in M1 and M2), at this time, due to the narrow gap between the lower annular surface 312 and the burner head 21, the flow rate of the secondary air here is accelerated; according to the Venturi effect, a pressure reduction will occur near the high-speed flowing gas, thereby producing an adsorption effect. The air flowing from the gap between the lower annular surface 312 and the burner head 21 has a fast flow rate, while the air in the energy-concentrating cavity 313 is basically in a static state. Therefore, some of the air in the energy-concentrating cavity 313 will be adsorbed into the flame (e.g., Figure 3 As shown in M3), it participates in flame combustion again; at this time, the gas in the energy-concentrating cavity 313 is partially used, resulting in low gas pressure. This causes some of the air supplied through the gap between the lower annular surface 312 and the burner head 21 to compensate for the air loss in the energy-concentrating cavity 313 (such as...). Figure 3 As shown in M4, this portion of air is reheated by the flame and forms a gas circulation. Under this circulation, the air heated by the flame can participate in combustion again, so that this portion of heat can be effectively utilized by the burner 2 to improve the thermal efficiency of the burner 2.

[0050] Please continue to refer to Figure 2 andFigure 3 It is important to note that the pot support 3 has two states during use. First state: The burner 2 is in the initial combustion stage. At this time, the air in the energy-concentrating plate 31 and the energy-concentrating cavity 313 is cold air. Although the aforementioned gas circulation occurs, the thermal efficiency of the burner 2 is not improved. Ineffective heat loss from the flame still occurs due to heating the air in the energy-concentrating plate 31 and the energy-concentrating cavity 313. Second state: The burner 2 has been burning for a period of time. The inner wall of the energy-concentrating cavity 313 has a certain temperature, and the air inside the energy-concentrating cavity 313 has been heated to a certain temperature. Based on the Venturi effect, a relatively stable gas circulation is formed between the energy-concentrating cavity 313, the flame, and the gap between the lower annular surface 312 and the burner head 21. This allows this portion of air to participate in the combustion of the gas again, thereby improving the thermal efficiency of the gas significantly. Meanwhile, in the second state, the gas that is added to the energy-concentrating cavity 313 from the gap between the lower annular surface 312 and the burner head 21 will mix with the remaining gas in the energy-concentrating cavity 313 to generate heat exchange. At the same time, since the energy-concentrating disk 31 itself has been heated to a certain temperature, the gas in the energy-concentrating cavity 313 can be kept within a certain fluctuation range, which can stably improve the thermal efficiency of the burner 2.

[0051] Please refer to Figure 4 In some examples, the energy-concentrating plate 32 and the energy-concentrating disk 31 are integrally formed. In this configuration, the forming process between the energy-concentrating plate 32 and the energy-concentrating disk 31 can be bending or casting. This method ensures a simple and low-cost manufacturing process for both the energy-concentrating plate 32 and the energy-concentrating disk 31, while also providing good bonding strength between them. Simultaneously, it ensures the airtightness between the energy-concentrating plate 32 and the energy-concentrating disk 31, preventing gas leakage during circulation within the energy-concentrating cavity 313 and providing support for gas circulation.

[0052] Please refer to Figure 5In some examples, the energy-concentrating plate 32 is welded to the energy-concentrating disk 31. In this connection method, to ensure a tight connection between the energy-concentrating plate 32 and the energy-concentrating disk 31, the energy-concentrating plate 32 should also include an annular plate extending outward from the upper ring surface 311 of the energy-concentrating disk 31. This annular plate increases the overall contact area between the energy-concentrating plate 32 and the energy-concentrating disk 31, thus making the connection tighter. Welding also increases the connection strength between the energy-concentrating plate 32 and the energy-concentrating disk 31, and further enhances the overall strength of the pot support 3 by increasing the strength of the original energy-concentrating disk 31. Alternatively, the energy-concentrating plate 32 can be bonded to the energy-concentrating disk 31 or installed on it in other ways. Although there may be a gap between the energy-concentrating plate 32 and the energy-concentrating disk 31, which could lead to gas leakage within the energy-concentrating cavity 313, the Venturi effect still functions normally overall. Therefore, compared to existing technologies, this solution can also improve the thermal efficiency of the burner 2 to a certain extent.

[0053] Please continue to refer to Figure 5 In the example above, in order to further improve the connection strength between the energy-concentrating plate 32 and the energy-concentrating disk 31, the energy-concentrating disk 31 can be bent at the upper ring surface 311 to form a larger upper ring surface 311 that fits the plane of the energy-concentrating disk 31, thereby increasing the contact area between the upper ring surface 311 and the energy-concentrating plate 32, thereby improving the connection strength between the energy-concentrating plate 32 and the energy-concentrating disk 31.

[0054] In some examples, the energy-concentrating disk 31 is shaped like a frustum of a cone, and the upper ring surface 311 and the lower ring surface 312 are coaxial with the energy-concentrating disk 31. This is a conventional arrangement for the pot support 3, which ensures that the pot support 3 bears even force when supporting the pot 4, making the pot support 3 more stable. In this embodiment, the upper ring surface 311, the lower ring surface 312, and the axis of the energy-concentrating disk 31 can also be offset by a certain angle, i.e., a certain degree of coaxiality is sufficient, which can reduce costs without significantly affecting the performance.

[0055] In some examples, the upper annular surface 311 and the lower annular surface 312 are parallel to the axis of the energy-concentrating plate 31. In this case, the flame channel 321 at the upper annular surface 311 should correspond to the lower annular surface 312, meaning the flame channel 321 covers the projection along the lower annular surface 312, ensuring the position of the burner head 21 and the flame corresponds, and guaranteeing the heating effect of the flame on the cookware 4. In this configuration, the lower annular surface 312 and the upper annular surface 311 are not coaxial, meaning the flame channel 321 is located at an off-center position on the energy-concentrating plate 32. This allows the cookware 4 to be offset to one side when placed on the pot support 3, making it easier for the pot support 3 to adapt to areas with strict shape requirements.

[0056] In some examples, the pot support 3 only includes a concentrating plate 31, the inner side of which is arc-shaped, and the annular concentrating plate 31 forms an annular inner cavity. When heating the pot 4, since there is no concentrating plate 32 to prevent air from escaping, the air in the inner cavity expands after being heated, and some of it overflows directly from the concentrating plate 31. However, as secondary air is introduced from the gap between the concentrating plate 31 and the burner head 21, the heated air remaining in the inner cavity can be drawn into the flame and participate in combustion again according to the Venturi effect. In this way, although the thermal efficiency improvement of the burner 2 is reduced compared to the above scheme, it can still achieve a certain degree of improvement in thermal efficiency. In this scheme, the concentrating plate 32 can also simply be a panel formed by the upper end surface of the concentrating plate 31 at the annular surface 311 of the concentrating plate 31, which can also have a certain effect on improving thermal efficiency.

[0057] In some examples, the inner wall of the energy-concentrating disc 31 is arc-shaped or inclined. Regardless of whether the inner wall of the energy-concentrating disc 31 is arc-shaped or inclined, it can form the aforementioned energy-concentrating cavity, achieving the effect of heating and recirculating the air to improve the thermal efficiency of the burner 2; at the same time, it can also concentrate the flame, meeting the functional requirements of the energy-concentrating disc 31.

[0058] Please refer to Figure 6 Based on this, the pot support 3 also includes an extension 33, which is annular and located at the lower annular surface 312 of the energy-concentrating disk 31. The extension 33 extends from the lower annular surface 312 of the energy-concentrating disk 31 towards the side away from the upper annular surface 311 of the energy-concentrating disk 31. In the direction away from the upper annular surface 311 of the energy-concentrating disk 31 from the lower annular surface 312, the distance between the inner sidewall of the extension 33 and the axis of the energy-concentrating disk 31 gradually decreases. A gap is left between the inner sidewall of the extension 33 and the burner head 21 installed in the pot support 3 for supplementing secondary air during combustion of the burner head 21. The extension 33 on the pot support 3 extends the gap between the burner head 21 and the pot support 3 along the axis of the energy-concentrating disk 31 when the burner head 21 is installed, thereby allowing secondary air to be supplemented from the gap between the burner head 21 and the pot support 3. Figure 6 As shown in M1), a relatively stable flow velocity can be obtained, which in turn allows the air to form a more stable Venturi effect with the energy-concentrating cavity 313 when it is added to the combustion gas, making the gas circulation between the energy-concentrating cavity 313 and the flame more intense, and making the thermal efficiency of the burner 2 more stable.

[0059] In some examples, the extension 33 extends from the lower annular surface 312 of the energy-concentrating disk 31 towards the upper annular surface 311 away from the energy-concentrating disk 31, and in this direction, the extension 33 gradually moves away from the axis of the energy-concentrating disk 31. In this way, the annular opening formed by the extension 33 can be larger than the lower annular surface 312 of the energy-concentrating disk 31, which makes it easier for secondary air to enter the flame from the gap between the lower annular surface 312 and the burner head 21.

[0060] In some examples, the inner surface of the extension 33 is cylindrical. That is, the distance from the inner surface of the extension 33 to the axis of the energy-concentrating disk 31 is equal everywhere. In this way, the velocity of the secondary air entering the energy-concentrating disk 31 from the gap between the extension 33 and the burner head 21 is stabilized, resulting in a relatively stable airflow velocity. This gives the airflow a certain degree of stability, so that when the secondary air is replenished into the energy-concentrating disk 31 from the annular gap, it can form a more stable annular adsorption effect on the air in the annular energy-concentrating cavity 313 through the Venturi effect, thereby making the thermal efficiency of the burner 2 improved by the boiler support 3 more stable.

[0061] In this example, the inner surface of the extension 33 can also have a certain roughness, or it can be set as an uneven annular surface. Since the roughness of the inner wall of the extension 33 does not have a significant impact on the flow direction or velocity of the gas when the inner wall of the extension 33 is in contact with the gas, the above-mentioned effect can be achieved. At the same time, reducing the roughness of the extension 33 can reduce production costs.

[0062] In some examples, the extension 33 is disposed at the lower annular surface 312 of the energy-concentrating disk 31 and is fixedly connected to the energy-concentrating disk 31. Alternatively, the lower part of the energy-concentrating disk 31 can be bent to form the extension 33, that is, the extension 33 is integrally formed with the energy-concentrating disk 31, which can also achieve the corresponding connection effect.

[0063] Please refer to Figure 7 In addition, the pot support 3 also includes multiple support frames 34, which are mounted on the energy-concentrating plate 31. The upper surface of each support frame 34 is a support surface 341. The pot support 3 supports the pot 4 via the support surface 341, which is located on the side of the upper ring surface 311 of the energy-concentrating plate 31 away from the lower ring surface 312. The support frames 34 are higher than the energy-concentrating plate 31 and the energy-concentrating plate 32, so that when the pot 4 is placed, it is only supported by the support frames 34, which can prevent the pot 4 from directly contacting the energy-concentrating plate 31 or the energy-concentrating plate 32 and causing deformation of the energy-concentrating plate 31 or the energy-concentrating plate 32. This arrangement can protect the energy-concentrating plate 31 and the energy-concentrating plate 32.

[0064] Please continue to refer to Figure 7In some examples, the support frame 34 is plate-shaped, and the plane containing the support frame 34 extends through the axis of the energy-concentrating disk 31. This design ensures that when supporting the pot 4, the force on the support frame 34 is concentrated on the support frame 34 itself, preventing any force components outside the support frame 34, and also providing good protection for the support frame 34 itself. The support frame 34 can also be prism or pyramidal in shape, achieving the same supporting effect as the plate-shaped support frame 34.

[0065] Please continue to refer to Figure 7 In some examples, the axis of the energy-concentrating plate 31 forms a curved projection along the plane containing the axis on the inner wall of the energy-concentrating plate 31, and the support frame 34 contacts this curved projection everywhere. In this way, the strength of the energy-concentrating plate 31 can be improved by using the support frame 34, and at the same time, the gap between adjacent support frames 34 can be fixed by using the energy-concentrating plate 31, so that the support frame 34 itself has better stability and provides more stable support for the stove.

[0066] Please refer to Figure 8 In some examples, the axis of the energy-concentrating disk 31 forms a curved projection along the plane containing the axis on the inner wall of the energy-concentrating disk 31, and the support frame 34 is in partial contact with this curved projection. This method facilitates the processing of the support frame 34 and the energy-concentrating disk 31, reducing the amount of processing work.

[0067] In some examples, the support frame 34 is fixedly connected only to the side of the energy-concentrating plate 31 near the lower annular surface 312, and the upper part of the support frame 34 is disposed at the end of the energy-concentrating plate 32 or embedded in the energy-concentrating plate 32. In this way, the bottom of the support frame 34 is supported on the energy-concentrating plate 31, and the upper part only contacts the energy-concentrating plate 32. Multiple support frames 34 can be embedded in the energy-concentrating plate 32 or installed on the end face of the energy-concentrating plate 32 to achieve a good connection strength between the support frame 34 and the energy-concentrating plate 32, so that the two provide installation strength to each other.

[0068] In some examples, each pot support 3 has four support frames 34. The four pot supports 3 are evenly distributed within the energy-concentrating plate 31. Similarly, the number of pot supports 3 can also be other numbers, such as 3, 5, or 8, all of which can achieve a relatively stable support effect. The multiple support frames 34 can be evenly distributed within the pot support 3 or unevenly distributed, as long as they achieve the effect of stably supporting the pot 4.

[0069] Please refer to Figure 9Based on this, each of the multiple support frames 34 is provided with a support ramp 342, which is adjacent to the support surface 341 and extends along the axis from the support surface 341 toward the energy-concentrating disk 31. The support ramp 342 can support smaller pots 4. Through the support ramps 342 in the multiple support frames 34, a conical surface can be formed, which can provide good support for pots 4 of different diameters.

[0070] In some examples, there is an angle between the supporting slope 342 and the supporting surface 341, and the angle should be between 3° and 25°. A preferred angle is 8°. The length of the supporting slope 342 can be 2mm-30mm, preferably 15mm. In this embodiment, the diameter of the effective supporting surface 341 formed by the supporting slope 342 for the cookware 4 is between 20mm and 80mm, which can support most commonly used cookware, such as woks, steamers, and frying pans.

[0071] Please continue to refer to Figure 9 In some examples, each support frame 34 includes a support ramp 342, and the slope and length of the support ramps 342 on all support frames 34 are the same. By using support ramps 342 with the same slope and length, all support ramps 342 can be arranged into a regular shape, which can provide stable support for a regular-shaped pot 4.

[0072] Please continue to refer to Figure 9 In some examples, the support slope 342 is an inclined horizontal plane. In this case, the cookware 4 can have a fulcrum on each support slope 342, and the multiple support points on all the support slopes 342 form a support surface 341 to support the cookware 4.

[0073] Please refer to Figure 10 In some examples, the support slope 342 is an arc surface, and all the support slopes 342 are located on the conical surface of the same cone with the axis of the energy-concentrating disk 31 as the axis. In this way, each support slope 342 can form an arc area for the cookware 4, thereby making the support of the support slope 342 for the cookware 4 more stable.

[0074] Please continue to refer to Figure 10 In some examples, the width of the support slope 342 is the same along the axial direction from the energy-concentrating disk 31 to the energy-concentrating disk 31. This allows the width of the support slope 342 on the side closer to the axis of the energy-concentrating disk 31 to be more proportional to the bottom surface of the cookware 4, thereby making the support slope 342 provide more stable support for the smaller cookware 4.

[0075] In some examples, the width of the support slope 342 gradually decreases along the axial direction from the energy-concentrating plate 31 to the energy-concentrating plate 31. This design allows the support slope 342 to provide the same or similar support effect when facing pots 4 of different sizes, ensuring that the pressure received by the support slope 342 when supporting different pots 4 is similar, thus making the layout and design of the pot support 3 more reasonable.

[0076] Please refer to Figure 11 In addition, the support frame 34 also includes a stepped support surface 343, which is disposed between the support surface 341 and the support ramp 342. The stepped support surface 343 is used to support the flat-bottomed pan 4. Some flat-bottomed pans are small in size. When the support ramp 342 is used for support, the pan 4 is prone to shaking when heated due to the instability of the support surface 341 because there are only multiple points of support. By forming a horizontal annular support surface 341 through the stepped support surfaces 343 in the multiple support frames 34, a small flat-bottomed pan can be stably supported and prevented from tilting.

[0077] In some examples, the length of the stepped support surface 343 can be between 2mm and 15mm, and the height can be between 1mm and 5mm. The preferred length of the stepped support surface 343 is 5mm, and the preferred height is 2mm. This provides better support for the convex-bottomed round-bottomed wok.

[0078] In some examples, a sloped transition is used between the step support surface 343 and the support surface 341. When a sloped transition is used between the step support surface 343 and the support surface 341, the connection strength between the step support surface 343 and the support surface 341 can be increased, preventing local breakage or deformation in the area where the cookware 4 is located when it impacts the step support surface 343 or the support surface 341.

[0079] Please refer to Figure 12 In some examples, a rounded corner 344 is provided at the connection between the stepped support surface 343 and the side wall of the support frame 34. The rounded corner 344 can reduce the friction and collision between the pot 4 and the side wall of the stepped support surface 343 on the support frame 34 when the pot 4 is placed on the support frame 34. It can protect both the pot 4 and the support frame 34 at the same time, and also provide a certain degree of safety protection for workers when the support frame 34 is installed on the pot support 3.

[0080] In some examples, all the step support surfaces 343 are located on the same plane, and this plane is perpendicular to the axis of the energy-concentrating plate 31 (in specific implementations, a certain degree of flatness and perpendicularity error can be allowed, which is also part of this solution). This method can make the cookware 4 more level when supported by the support frame 34, which is convenient for heating the cookware 4.

[0081] Please refer toFigure 13 Based on this, the number of stepped support surfaces 343 on each of the shown support frames 34 is set to multiple, and the multiple stepped support surfaces 343 are distributed sequentially from the support surface 341 to the support slope 342. The multiple stepped support surfaces 343 can make the pot support 3 have multiple support planes of different sizes, thereby supporting flat pots 4 of more sizes.

[0082] Please continue to refer to Figure 13 In some examples, the number of stepped support surfaces 343 on each support frame 34 can be three. Setting too many stepped support surfaces 343 will make the processing of the stepped support surfaces 343 more difficult. At the same time, since the support frame 34 itself is relatively small, too many stepped support surfaces 343 will also result in a small area of ​​each stepped support surface 343, resulting in poor support effect for the cookware 4.

[0083] In some examples, the height difference between adjacent step support surfaces 343 along the axial direction of the energy-concentrating disk 31 is consistent. This makes the step support surfaces 343 appear more regular and facilitates processing and production. In this example, the height difference between adjacent step support surfaces 343 should be between 0.5mm and 2mm.

[0084] In some examples, the height difference between adjacent step support surfaces 343 along the axis of the energy-concentrating disk 31 is inconsistent, and the closer to the axis of the energy-concentrating disk 31, the greater the height difference between adjacent step support surfaces 343. Since the size and volume of the cookware 4 are proportional, when the size of the cookware 4 is small, the cookware 4 will also be relatively short. In this way, when the smaller cookware 4 is supported by the support frame 34, the center of gravity of the cookware 4 is lower and the stability is better.

[0085] Please refer to Figure 14 Based on this, the supporting inclined surface 342 and the stepped supporting surface 343 adjacent to the supporting inclined surface 342 are connected by a rounded corner 344, which is used to support the convex-bottomed cookware 4. When the cookware 4 is a convex-bottomed cookware 4, the supporting inclined surfaces 342 of the multiple support brackets 34 can support the convex-bottomed cookware 4, while the rounded corner 344 can provide an additional frictional force to the convex cookware 4, thereby making the support of the pot support 3 on the cookware 4 more stable.

[0086] In some examples, the radius of the corner 344 is 1mm-5mm, preferably 2mm. This design allows the corner 344 to provide better support for a standard wok.

[0087] In some examples, the fillet 344 between the step support surface 343 and the support slope 342 is located outside the cone surface where the support slope 342 of the support frame 34 is located, so as to ensure that the fillet 344 and the support slope 342 do not collide when supporting the convex bottom pot 4.

[0088] In some examples, when there are multiple stepped support surfaces 343 between the support surface 341 and the support ramp 342 of each support frame 34, rounded corners 344 are provided on all the stepped support surfaces 343. This makes the stepped support surfaces 343 look more aesthetically pleasing, and at the same time, when the stepped support surfaces 343 away from the axis of the energy-concentrating plate 31 support the flat-bottomed pot 4, they avoid friction with the side wall of the upper stepped support surface 343 or the side wall of the support surface 341, which can provide a certain degree of protection for the pot 4.

[0089] Please refer to Figure 15 In addition, the pot support 3 also includes a protrusion 35, which is disposed between the extension 33 and the energy-concentrating plate 31. The protrusion of the protrusion 35 faces the upper annular surface 311 of the energy-concentrating plate 31. The protrusion 35 is annular, and its projection along the axial direction of the energy-concentrating plate 31 falls completely into the flame channel 321 of the energy-concentrating plate 32. A liquid collection groove is formed between the upper surface of the protrusion 35 and the inner wall of the energy-concentrating plate 31. The liquid collection groove is annular and is used to collect the overflow of the pot 4. When the pot 4 overflows, it falls along the edge of the pot 4, passes through the flame channel 321 on the energy-concentrating plate 32, and falls into the liquid collection groove between the protrusion 35 and the energy-concentrating plate 31, where it is collected, reducing the difficulty of cleaning the stove.

[0090] In some examples, the side of the protrusion 35 closest to the energy-concentrating plate 31 is concave. When the side of the protrusion 35 closest to the energy-concentrating plate 31 is concave, the volume of the liquid collection tank between the protrusion 35 and the energy-concentrating plate 31 is larger, which can collect more overflow when the cookware 4 overflows, avoid danger, and reduce the difficulty of cleaning when the cookware 4 overflows.

[0091] In some examples, the side of the protrusion 35 closest to the energy-concentrating disk 31 is an inclined plane. This allows for convenient and regular cleaning of the protrusion 35.

[0092] In some examples, a liquid outlet is provided on the bottom wall of the collection tank, and a liquid outlet plug can be installed at the outlet, as well as a protective net. When the collection tank is equipped with a liquid outlet, it is convenient to drain the overflow collected in the collection tank.

[0093] Please refer to Figure 16 Based on this, the protrusion 35 is formed by bending the side of the energy-concentrating disk 31 near the lower annular surface 312, and the bending direction of the energy-concentrating disk 31 is towards the upper annular surface 311 of the energy-concentrating disk 31. A liquid collection groove is formed between the bending area of ​​the energy-concentrating disk 31 and the inner wall of the energy-concentrating disk 31 above the bending area. When the protrusion 35 is formed by bending a part of the energy-concentrating disk 31, the production of the protrusion 35 can be made more convenient, and the weight of the pot support 3 can be reduced.

[0094] In some examples, the protrusion 35 can also be fixedly disposed on the inner wall of the energy-concentrating plate 31, that is, the protrusion 35 is fixed to the inner wall of the energy-concentrating plate 31 by welding or bonding. In this way, a liquid collection groove can also be formed between the protrusion 35 and the inner wall of the energy-concentrating plate 31 to collect the overflow of the cookware 4, achieving a similar effect to the above-described embodiments.

[0095] In some examples, the distance between the highest point of the protrusion 35 along the axis of the energy-concentrating disk 31 and the axis of the energy-concentrating disk 31 is equal to the distance between the support frame 34 and the axis of the energy-concentrating disk 31. With this arrangement, regardless of the size of the pot 4, as long as it is supported and heated on the pot support 3, the overflow from the pot 4 can be collected.

[0096] In some examples, the size of the flame channel 321 should also match the maximum size of the cookware 4 that the support frame 34 in the pot holder 3 can support, when the projection of the protrusion 35 along the axis of the energy-concentrating disk 31 is matched. This allows for the collection of overflow from a wider variety of cookware 4 into the collection tank. In this example, only flat-bottomed cookware 4 is considered, i.e., the sidewall of the cookware 4 is cylindrical. In this case, the overflow of the cookware 4 is predictable, and the diameter of the cookware 4 itself is close to the diameter of its bottom surface, making it easy to install on the pot holder 3. When the cookware 4 is a protruding cookware 4, the projection of part of the opening of the cookware 4 along the axis of the energy-concentrating disk 31 is much larger than the projection of the pot holder 3 in that direction. In this case, the collection of overflow from the cookware 4 is not considered.

[0097] Based on this, both the energy-concentrating disc 31 and the energy-concentrating plate 32 in the pot support 3 are single-layer structures. When both the energy-concentrating disc 31 and the energy-concentrating plate 32 are single-layer structures, the processing is simple and the cost is low. At the same time, processing according to this scheme can improve the thermal efficiency to a certain extent while concentrating the flame. Under this condition, the thermal efficiency of the pot 4 in the second state is increased by 2%-5%, which can achieve the expected effect.

[0098] In some examples, both the energy-concentrating plate 31 and the energy-concentrating disk 32 of the pot support 3 have a double-layer structure. When both the energy-concentrating disk 31 and the energy-concentrating disk 32 have a double-layer structure, the processing cost increases significantly. However, because the double-layer structure of the energy-concentrating disk 32 and the energy-concentrating disk provides better insulation, it prevents the energy-concentrating disk 31 and the energy-concentrating disk 32 from transferring heat to the air after being fully heated, thus further improving thermal efficiency. When both the energy-concentrating disk 31 and the energy-concentrating disk 32 have a double-layer structure, only the inner layer of the energy-concentrating disk 32 or the energy-concentrating disk 31 needs to be heated to a certain temperature to achieve the corresponding second state and realize the desired effect.

[0099] In some examples, since the pot support 3 loses a significant amount of heat into the air when supporting the pot 4, and the solution aims to further improve thermal efficiency by reusing some of the ineffectively heated air, the double-layer structure offers greater thermal efficiency compared to the single-layer structure. In both single-layer and double-layer structures of the energy-concentrating plate 31 and energy-concentrating disk 32, the larger area of ​​the energy-concentrating disk 31 contributes to its superior thermal insulation. Therefore, a structure combining a single-layer energy-concentrating disk 32 and a double-layer energy-concentrating disk 31 can also be used. This implementation method can, to some extent, balance the conflict between cost and improved thermal efficiency.

[0100] Based on this, the energy-concentrating cavity 313 is an annular cavity. That is, the support frame 34 and the inner wall of the energy-concentrating disk 31 are not completely connected. In this way, the air in the energy-concentrating cavity 313 can flow through the gap between the energy-concentrating disk 31 and the support frame 34, thereby forming a complete annulus. Then, when the pressure in some areas of the energy-concentrating cavity 313 is too low, air can be introduced from other areas of the energy-concentrating cavity 313 to avoid airflow affecting the stability of the flame.

[0101] In some examples, the energy-concentrating cavity 313 is divided into multiple sub-cavities by the support frame 34, and these sub-cavities are located within the same annular cavity. This implementation allows the support frame 34 to be fixedly and tightly connected to the inner wall of the energy-concentrating disk 31. This not only improves the strength of the energy-concentrating disk 31 but also ensures the stability of the support frame 34, preventing it from shifting.

[0102] Please refer to Figure 17 Furthermore, a support base 36 is provided at the bottom of the energy-concentrating plate 31. When the support base 36 is provided at the bottom of the energy-concentrating plate 31, the overall height of the pot support 3 can be increased, thereby widening the gap between the energy-concentrating plate 31 and the plane on which the pot support 3 is placed, facilitating the entry of secondary air.

[0103] Please continue to refer to Figure 17 In some examples, multiple support bases 36 are provided, distributed at the bottom of the energy-concentrating disk 31. The multiple support bases 36 at the bottom of the energy-concentrating disk 31 provide better support for the energy-concentrating disk 31.

[0104] Please continue to refer to Figure 17 In some examples, a rubber pad 361 is provided at the bottom of the support base 36. The rubber pad 361 can give the pot support 3 a certain degree of anti-slip performance, making the pot support 3 more stable.

[0105] Please continue to refer to Figure 17In some examples, multiple support bases 36 correspond one-to-one with multiple support frames 34 and are located on the same plane. This arrangement allows the support frame 34 to directly transfer the weight of the pot 4 to the support base 36 when supporting the pot 4, preventing the energy-concentrating disk 31 from deforming under stress. In this implementation, the thickness of the support base 36 can be greater than the thickness of the support frame 34, so that the support frame 34 only needs to be placed directly above the support base 36; alternatively, the thicknesses of the support base 36 and the support frame 34 can be similar, with only a portion of them overlapping in the axial direction of the energy-concentrating disk 31; or the support base 36 can penetrate through the bottom of the energy-concentrating disk 31 and be fixedly connected to the support frame 34. All of the above methods can achieve the effect of protecting the energy-concentrating disk 31 and preventing its deformation.

[0106] In some examples, the multiple support frames 34 do not correspond one-to-one with the multiple support bases 36. Since the energy-concentrating disk 31 is mostly made of metal and has a certain strength, deformation of the energy-concentrating disk 31 can be avoided simply by increasing the thickness of the energy-concentrating disk 31 between the support base 36 and the support frame 34 or by otherwise improving the strength of the energy-concentrating disk 31 in that area. At the same time, when the support frames 34 and the energy-concentrating disk 31 do not correspond one-to-one, the overall manufacturing difficulty of the pot support 3 can be reduced.

[0107] Please refer to Figure 18 In some examples, all the support seats 36 form a support ring seat 362. The support ring seat 362 includes a support ring directly connected to the energy-concentrating disk 31 and support legs 363 located at the bottom of the support ring, with gaps between adjacent support legs 363. In this embodiment, the support ring is connected to the energy-concentrating disk 31 to improve the strength of the energy-concentrating disk 31 and prevent deformation; the support legs 363 are used to support the pot support 3 and the pot 4; the gaps between the support legs 363 are used for the introduction of secondary air to make the gas combustion more complete.

[0108] Please continue to refer to Figure 18 In some examples, rubber pads 361 are provided on the feet 363. By providing rubber pads 361 on the feet 363, the aforementioned anti-slip effect can also be achieved.

[0109] Please refer to Figure 19A stove is provided, comprising: a housing 1, a burner 2, a gas pipe, and a pot support 3. The housing 1 is provided with a mounting hole 11. The burner 2 and the gas pipe are both disposed inside the housing 1. The gas pipe is connected to the burner 2 to provide gas to the burner 2. The burner 2 includes a burner head 21, which extends out of the housing 1 through the mounting hole 11. The pot support 3 is the aforementioned pot support 3, which is disposed on the housing 1 and located outside the mounting hole 11. The portion of the burner head 21 located outside the housing 1 extends into the lower annular surface 312 of the energy-concentrating plate 31, and the portion of the burner head 21 located outside the housing 1 is located inside the pot support 3. The flame of the burner head 21 passes through the flame channel 321 of the energy-concentrating plate 32 to heat the pot 4 located on the pot support 3.

[0110] The stove uses a pot support 3 to support the pot 4. When the burner 21 in the burner 2 heats the pot 4, the flame rises from the gas passage in the pot support 3 to heat the pot 4 located on the pot support 3. At this time, the pot support 3 improves the thermal efficiency of the flame, so that the stove can have a better heating effect on the pot 4 when using the pot support 3.

[0111] In some examples, the outer casing 1 has multiple mounting holes 11, each mounting hole 11 contains a burner 2, and each mounting hole 11 has a pot support 3 outside it. By installing multiple burners 2 on the stove, multiple pots 4 can be heated on the stove simultaneously, improving the heating efficiency of the stove.

[0112] In some examples, the number of mounting holes 11 on the housing 1 can be two, four, or eight; this can be adapted to different usage scenarios.

[0113] Please continue to refer to Figure 19 In addition, the cooktop also includes a control panel 12, which is mounted on the outer casing 1, and the pot support 3 is placed on the control panel 12. This allows the overflow of a pot with a large opening 4 to fall directly onto the control panel 12, making it easy to clean.

[0114] Please continue to refer to Figure 19 In some examples, the housing 1 contains a gas pipe that supplies gas to the burner 2, and the panel 12 has a control knob 13 for controlling the on / off of the gas pipe. The control knob 13 not only controls the on / off of the gas but also allows for easy adjustment of the gas flow to regulate the flame size and meet cooking requirements.

[0115] In some examples, the burner 2 includes an ignition needle for igniting the gas on the burner head 21. The ignition needle completes the structure of the stove to meet the need for igniting the gas when the flame is burning.

[0116] Based on this, the burner head 21 is a dry-burning prevention burner head 21, that is, a dry-burning prevention detection head is set in the middle of the burner head 21. Through the dry-burning prevention detection head set in the middle of the burner head 21, the cookware 4 placed on the pot support 3 can be tested for dry burning, so as to prevent the cookware 4 from dry burning and provide further protection for the cookware 4.

[0117] In some examples, each burner 21 is equipped with an anti-dry-burn detection head to perform anti-dry-burn detection on each pot 4 used on the stove, thereby achieving anti-dry-burn protection for each pot 4 heated on the stove.

[0118] Based on this, the gas burned in the stove can be one of liquefied petroleum gas, natural gas, manufactured gas, or biogas. Preferably, liquefied natural gas is used.

[0119] Based on this, the burner head 21 is a single-layer flame cap. When the burner head 21 is a single-layer flame cap, the combustion of gas on the burner head 21 forms a single-layer flame, which heats the cookware 4.

[0120] In some examples, the burner head 21 is a multi-layered burner. When the burner head 21 is a multi-layered burner, the combustion of gas on the burner head 21 forms a multi-ring flame, which can heat the cookware 4 simultaneously, so that the cookware 4 is heated faster and the heat output of the burner head 21 is higher.

[0121] Please refer to Figure 20 In some examples, the number of multi-layer burner caps is three, and from the inside out, they include a central burner cap 211, an inner burner cap 212, and an outer burner cap 213. When heating the cookware 4, the outer ring flame on the outer burner cap 213 heats the air in the energy-concentrating cavity 313, thereby allowing this part of the air to participate in the combustion of gas again, thus improving the thermal efficiency of the stove.

[0122] In some examples, a direct flame burns on the burner head 21. Burning a direct flame on the burner head 21 simplifies the machining of the flame holes and increases machining efficiency. Similarly, a swirling flame can also burn on the burner head 21, achieving a more uniform heating effect.

[0123] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0124] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pot support, mounted on a stove and used to support a pot, characterized in that, include: An energy-concentrating plate, which has an upper ring surface and a lower ring surface, wherein the diameter of the upper ring surface is larger than the diameter of the lower ring surface, and the lower ring surface is used to install the furnace head; An energy-concentrating plate is disposed on the upper annular surface of the energy-concentrating disk and extends from the edge of the upper annular surface of the energy-concentrating disk towards the axis of the energy-concentrating disk. The energy-concentrating plate is annular and has a flame channel in the middle. An energy-concentrating cavity is formed between the lower side of the energy-concentrating plate and the inner side of the energy-concentrating disk. The energy-concentrating cavity is used to store air. The extension is annular and is located on the lower ring surface of the energy-concentrating disk. The extension extends from the lower ring surface of the energy-concentrating disk to the side away from the upper ring surface of the energy-concentrating disk. In the direction away from the upper ring surface of the energy-concentrating disk from the lower ring surface, the distance between the inner sidewall of the extension and the axis of the energy-concentrating disk gradually decreases. A gap is left between the inner sidewall of the extension and the burner head installed in the pot support for supplementing secondary air during combustion.

2. The pot support according to claim 1, characterized in that, The pot support also includes multiple support frames, which are disposed on the energy-concentrating plate and have their upper surfaces as support surfaces. The pot support supports the pot through the support surfaces, which are located on the side of the upper ring surface of the energy-concentrating plate away from the lower ring surface of the energy-concentrating plate.

3. A pot support according to claim 2, characterized in that, Each of the multiple support frames is provided with a support ramp, the support ramp is in contact with the support surface, and the support ramp extends along the axis from the support surface to the energy-concentrating disk.

4. A pot support according to claim 3, characterized in that, The support frame also includes a stepped support surface, which is disposed between the support surface and the support slope, and the stepped support surface is used to support flat-bottomed cookware.

5. A pot support according to claim 4, characterized in that, The number of stepped support surfaces on each of the shown support frames is set to multiple, and the multiple stepped support surfaces are distributed sequentially from the support surface to the support slope.

6. A pot support according to claim 5, characterized in that, The supporting inclined surface and the step supporting surface adjacent to the supporting inclined surface are connected by a rounded corner, which is used to support the convex bottom pot.

7. A pot support according to claim 1, characterized in that, The pot support also includes a protrusion disposed between the extension and the energy-concentrating plate. The protrusion faces the upper annular surface of the energy-concentrating plate. The protrusion is annular and its projection along the axial direction of the energy-concentrating plate falls completely into the flame channel of the energy-concentrating plate. A liquid collection groove is formed between the upper surface of the protrusion and the inner wall of the energy-concentrating plate. The liquid collection groove is annular and is used to collect overflow from the pot.

8. A pot support according to claim 7, characterized in that, The protrusion is formed by bending the energy-concentrating disk on the side near the lower ring surface, and the bending direction of the energy-concentrating disk is towards the upper ring surface of the energy-concentrating disk. The liquid collection groove is formed between the bending area of ​​the energy-concentrating disk and the inner wall of the energy-concentrating disk above the bending area.

9. A stove, characterized in that, include: The device comprises a housing, a burner, a gas pipeline, and a pot support. The housing has mounting holes. The burner and the gas pipeline are both located inside the housing. The gas pipeline is connected to the burner to supply gas to the burner. The burner includes a burner head that extends out of the housing through the mounting holes. The pot support is the same as any one of claims 1-8. The pot support is located on the housing and outside the mounting holes. The portion of the burner head located outside the housing extends into the lower annular surface of the energy-concentrating plate, and the portion of the burner head located outside the housing is located inside the pot support. The flame from the burner head passes through the flame channel of the energy-concentrating plate to heat the pot located on the pot support.

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