Pot rack and stove

Abstract

The invention discloses a pot rack and a stove. The pot rack comprises a pot rack main body and pot supporting legs, the pot rack body comprises an upper heat insulation plate and a lower plate, and the lower plate is located below the upper heat insulation plate and connected with the upper heat insulation plate so that a heat insulation cavity can be defined by the lower plate and the upper heat insulation plate. At least part of the pot supporting legs are arranged on the top of the heat insulation upper plate, and the pot supporting legs are used for bearing a pot. And heat energy carried by high-temperature flue gas can be fully utilized, so that the heat efficiency of the stove is improved.

Description

Technical Field

[0001] This application relates to the field of kitchenware technology, and in particular to a pot rack and stove. Background Technology

[0002] A stove is a common kitchen appliance in daily life. A stove usually consists of a pot rack and a burner. The pot rack is located around the burner and is used to support the pot. The burner is used to heat the pot.

[0003] However, when the burner is working, it produces high-temperature flue gas, which carries a lot of heat energy. However, a large amount of heat energy carried by the high-temperature flue gas is transferred to the pot rack, so the heat energy carried by the high-temperature flue gas is not fully utilized, resulting in low thermal efficiency of the stove. Summary of the Invention

[0004] This application provides a pot rack and a stove that can fully utilize the heat energy carried by high-temperature flue gas, thereby improving the thermal efficiency of the stove.

[0005] In a first aspect, this application provides a pot holder, comprising: The pot frame body includes an upper heat-insulating plate and a lower plate, wherein the lower plate is located below the upper heat-insulating plate and connected to the upper heat-insulating plate to form a heat-insulating cavity; and, A pot support foot, at least a portion of which is disposed on the top of the heat-insulating upper plate, the pot support foot being used to support the pot.

[0006] In some embodiments of this application, the heat-insulating upper plate is made of aerogel.

[0007] In some embodiments of this application, the pot frame body has a central through hole for placing a burner, the outer peripheral side of the pot frame body is provided with an air inlet communicating with the heat insulation cavity, and the inner peripheral side of the pot frame body is provided with an air outlet communicating with the heat insulation cavity. The air inlet communicates with the central through hole through the heat insulation cavity and the air outlet.

[0008] In some embodiments of this application, the pot frame body further includes: A partition is located between the upper heat insulation plate and the lower heat insulation plate. The partition is connected to the upper heat insulation plate and / or the lower heat insulation plate to divide the heat insulation cavity into a first cavity and a second cavity. The air inlet and the air outlet are connected to the first cavity to form a replenishment channel. The second cavity is located below the first cavity.

[0009] In some embodiments of this application, the length of the first cavity is less than the length of the second cavity along the axial direction of the pot frame body.

[0010] In some embodiments of this application, at least a portion of the air supply channel bends and extends toward the central through-hole.

[0011] In some embodiments of this application, the air supply channel, in the direction close to the central through hole, includes a first air guide section, a first curved section, a second curved section, and a second air guide section arranged in sequence. The first curved section is connected to the second air guide section and extends downward from the second air guide section; the second curved section is connected to the first curved section and extends upward from the first curved section to the second air guide section.

[0012] In some embodiments of this application, the gas replenishment channel further includes: An air-drawing section is located on the side of the first air-guiding section away from the first curved section. The distance between the air-drawing section and the top surface of the pot support leg in the axial direction of the pot frame body is less than the distance between the first air-guiding section and the top surface of the pot support leg in the axial direction of the pot frame body; and / or, The air outlet section is located on the side of the second air guide section away from the second curved section. The distance between the air outlet section and the top surface of the pot support leg in the axial direction of the pot frame body is greater than the distance between the second air guide section and the top surface of the pot support leg in the axial direction of the pot frame body.

[0013] In some embodiments of this application, the air supply channel protrudes from the lower plate in a direction close to the central through hole.

[0014] In some embodiments of this application, the pot support extends downward into the heat insulation cavity.

[0015] Secondly, this application also provides a stove, including a burner and a pot rack as described in any of the above embodiments, the pot rack body being disposed around the outer periphery of the burner.

[0016] The beneficial effects of this application are as follows: When the cookware is heated by the stove, the exhaust channel is formed between the heat-insulating upper plate and the bottom surface of the cookware. Since the heat-insulating upper plate is a plate structure with heat insulation effect formed by heat-insulating and heat-preserving material, the heat-insulating upper plate has the characteristic of low thermal conductivity. When the high-temperature flue gas is discharged from the combustion space through the exhaust channel, there is less heat exchange between the high-temperature flue gas and the heat-insulating upper plate, which helps to reduce the heat energy of the high-temperature flue gas from dissipating to the main body of the cookware. This allows the high-temperature flue gas to transfer more heat to the cookware, thereby making full use of the heat energy carried by the high-temperature flue gas and improving the thermal efficiency of the stove. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the pot rack structure from a first perspective in the first embodiment of this application; Figure 2 This is a schematic diagram of the pot rack in the first embodiment of this application from a second perspective; Figure 3 This is a partial structural diagram of the pot rack in the first embodiment of this application; Figure 4 This is a schematic diagram of the pot rack structure in the second embodiment of this application; Figure 5 This is a partial structural diagram of the pot rack in the second embodiment of this application; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is an exploded view of the pot frame components in the second embodiment of this application; Figure 8 This is a schematic diagram of the stove in one embodiment of this application.

[0019] Figure label: 10. Pot rack; 20. Main body of the pot frame; 211. Insulated upper plate; 212. Edge baffle; 221. Lower plate; 222. Flanged edge; 23. Insulated cavity; 231. First cavity; 232. Second cavity; 24. Central through hole; 25. Air inlet; 26. Air outlet; 27. Partition; 28. Air supply channel; 281. First air guide section; 282. First curved section; 283. Second curved section; 284. Second air guide section; 285. Air intake section; 286. Air outlet section; 291. Inner circumferential side; 292. Outer circumferential side; 293. Energy-concentrating sedimentation tank; 31. Pot support legs; 32. Support legs; 33. Insulating feet; 40. Stove; 50. Burner; 51. Inner burner cap; 52. Outer burner cap; 53. Flame outlet; K, center line. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] This application provides a pot rack and a stove to solve the problem in the related technology that when the burner is working, it generates high-temperature flue gas. The high-temperature flue gas carries a lot of heat energy, but a large amount of heat energy carried by the high-temperature flue gas is transferred to the pot rack, so that the heat energy carried by the high-temperature flue gas is not fully utilized, resulting in low thermal efficiency of the stove.

[0022] Firstly, this application provides a pot holder 10, such as... Figures 1 to 3 As shown, the pot rack 10 includes a pot rack body 20 and pot support legs 31. At least a portion of the pot support legs 31 is disposed on the top of the heat insulation upper plate 211. The pot support legs 31 are used to support the pot and can separate the pot from the pot rack body 20. The number of pot support legs 31 can be 2, 3 or more, and multiple pot support legs 31 can be arranged at intervals along the circumference of the pot rack body 20. The pot support legs 31 can be connected to the pot rack body 20 by non-removable means such as welding or integral molding, or the pot support legs 31 can be connected to the pot rack body 20 by detachable means such as snap-fit ​​or threaded connection.

[0023] Understandably, see Figure 8 As shown, when using the stove 40, the pot rack body 20 is arranged around the outer periphery of the burner 50. The pot (which can be a frying pan, pressure cooker, saucepan, frying pan, or other types) is placed on the pot support 31. The pot support 31 separates the pot from the pot rack body 20, so that an exhaust channel is formed between the bottom surface of the pot and the top of the pot rack body 20. The burner 50, the pot rack 10, and the pot form a combustion space. The high-temperature flame generated by the burner 50 heats the pot, and the flame generates high-temperature flue gas when burning in the combustion space. The high-temperature flue gas can be discharged from the combustion space through the exhaust channel. The ring-shaped pot rack body 20 can isolate the flame generated by the burner 50 from the external environment, reduce the influence of the low-temperature airflow on the flame and the loss of combustion heat energy, and at the same time allow the high-temperature flue gas generated by the flame to stay in the combustion space for a longer time, so that the high-temperature flue gas has enough time to fully exchange heat with the bottom surface of the pot, thereby improving the heat exchange efficiency and the overall thermal efficiency of the stove 40.

[0024] Specifically, the main body 20 of the pot frame includes an upper heat-insulating plate 211 and a lower plate 221. The lower plate 221 is located below the upper heat-insulating plate 211 and is connected to the upper heat-insulating plate 211 to form a heat-insulating cavity 23. The heat-insulating cavity 23 can play a good heat-insulating role and can prevent the heat energy of the combustion space from dissipating outward, thereby further reducing heat energy loss and further improving the thermal efficiency of the burner 50.

[0025] In addition, the exhaust channel is formed between the heat-insulating upper plate 211 and the bottom surface of the pot. Since the heat-insulating upper plate 211 is a plate structure with heat insulation effect formed by heat-insulating and heat-preserving material, the heat-insulating upper plate 211 has the characteristic of low thermal conductivity. When the high-temperature flue gas is discharged from the combustion space through the exhaust channel, the heat exchange between the high-temperature flue gas and the heat-insulating upper plate 211 is less, which helps to reduce the heat energy of the high-temperature flue gas to be dissipated to the pot rack body 20. This allows the high-temperature flue gas to transfer more heat to the pot, thereby making full use of the heat energy carried by the high-temperature flue gas and improving the thermal efficiency of the stove 40.

[0026] In some embodiments, the heat-insulating upper plate 211 is made of aerogel. The heat-insulating upper plate 211 can be entirely made of aerogel, meaning the material used to prepare the heat-insulating upper plate 211 contains only aerogel; alternatively, the heat-insulating upper plate 211 can be mostly (greater than 50%) made of aerogel, meaning the main component of the material used to prepare the heat-insulating upper plate 211 is aerogel, but it also contains other materials. It is understood that aerogel is a solid material with a nanoporous network structure and gaseous dispersion media filling the pores. It has excellent thermal insulation performance and is lightweight. The heat-insulating upper plate 211 formed by aerogel can provide good thermal insulation without significantly increasing the overall weight of the pot frame 10. Of course, in other embodiments, the heat-insulating upper plate 211 can also be formed of other thermal insulation materials, such as aluminum silicate, foamed ceramics, etc.

[0027] like Figures 2 to 6 As shown in some embodiments of this application, the pot frame body 20 has a central through hole 24 for placing the burner 50. The pot frame body 20 is an annular structure with the central through hole 24 at the center. The pot frame body 20 can be circular, but it can also be square or other shapes depending on actual needs. The central through hole 24 can also be circular, square, or other shaped holes. The shape of the central through hole 24 can be adapted to the overall shape of the burner 50.

[0028] The pot frame body 20 is provided with an air inlet 25 and an air outlet 26 that are connected to the heat insulation cavity 23. The air inlet 25 is connected to the central through hole 24 through the heat insulation cavity 23 and the air outlet 26.

[0029] It is understandable that when the burner 50 is burning, the combustible gas containing combustion gas and primary air is released from the burner 50's flare port 53 (e.g., Figure 8 The gas is ejected from the burner and ignited by the ignition device in the burner 50. The oxygen in the combustion space is consumed to generate negative pressure, which allows the low-temperature air outside the pot rack body 20 to be drawn into the heat insulation cavity 23 from the air inlet 25 of the pot rack body 20 and flow out to the central through hole 24 through the air outlet 26. This provides secondary air to the flame burning at the flame outlet 53, making the combustion of combustible gas more complete and thus improving the thermal efficiency of the stove 40.

[0030] In addition, when the low-temperature air flows in the heat insulation cavity 23, it can absorb the heat energy emitted by the pot rack body 20 for preheating, thereby forming high-temperature air. The high-temperature air can supplement the flame burning at the flame outlet 53 with high-temperature secondary air, which can increase the temperature and combustion efficiency of the flame burning at the flame outlet 53. Furthermore, it can make full use of the heat emitted by the pot rack body 20, so that the heat energy carried by the pot rack body 20 can be fully utilized, thereby further improving the thermal efficiency of the stove 40.

[0031] like Figure 2 and Figure 3 As shown, in some embodiments, the air inlet 25 is located at the bottom of the pot frame body 20, and the air outlet 26 is located on the inner circumferential side 291 of the pot frame body 20. The inner circumferential side 291 of the pot frame body 20 refers to the inner ring surface of the pot frame body 20 near the central through hole 24, and the inner circumferential side 291 of the pot frame body 20 forms the hole wall surface of the central through hole 24. When the burner 50 is burning, low-temperature air can flow upward from the bottom of the pot frame body 20 into the heat insulation cavity 23, preventing the airflow generated by the air inlet 25 from causing discomfort to the user.

[0032] In some embodiments, the heat-insulating upper plate 211 can protrude from the lower plate 221 towards the central through hole 24, and the air outlet 26 is disposed on the inner peripheral side of the heat-insulating upper plate 211. In this case, the inner peripheral side of the heat-insulating upper plate 211 is the inner peripheral side 291 of the pot rack body 20. This can extend the flow path of low-temperature air to the air outlet 26, allowing the low-temperature air to stay in the heat-insulating cavity 23 for a longer time. Furthermore, the low-temperature air exchanges heat with the pot rack body 20 in the heat-insulating cavity 23, resulting in a larger heat exchange area between the low-temperature space and the pot rack body 20. This allows the low-temperature air to exchange heat more fully with the pot rack body 20, which is beneficial for fully recovering the heat energy of the pot rack body 20, reducing heat loss, and supplementing the flame burning at the flame outlet 53 with secondary air at a higher temperature, thereby further improving the thermal efficiency of the stove 40.

[0033] The lower plate 221 may have an upwardly bent flange 222 connected to its inner edge. The flange 222 can be connected to the lower plate 221 by a non-removable method such as welding or integral molding, or it can be connected to the lower plate 221 by a detachable method such as snap-fit ​​or threaded connection. There is a gap between the flange 222 and the bottom surface of the upper heat insulation plate 211 that communicates with the air outlet 26, so that when low-temperature air flows to the air outlet 26, it needs to bypass the flange 222 (e.g., ...). Figure 3 , Figure 3 The direction indicated by the small dashed arrow in the middle is the direction of the flow of low-temperature air, which can further extend the flow path of the low-temperature air as it flows to the outlet 26. Optionally, the flange 222 extends around the circumference of the central through hole 24, so that the flange 222 can block the low-temperature air flowing to the outlet 26 from all directions.

[0034] In some embodiments, the inner lower edge of the heat insulation upper plate 211 is connected to a baffle 212. The baffle 212 can be connected to the heat insulation upper plate 211 by a non-removable method such as welding or integral molding, or the baffle 212 can be connected to the heat insulation upper plate 211 by a detachable method such as snap-fit ​​or threaded connection. The baffle 212 extends towards the lower plate 221 to the bottom of the lower plate 221, so that the low temperature gas can impact the baffle 212 after bypassing the flange 222. The baffle 212 has a blocking and guiding effect on the low temperature air, so that the low temperature air can be smoothly discharged along the air outlet 26.

[0035] like Figures 4 to 7 As shown, in some other embodiments, the outer peripheral side 292 of the pot frame body 20 is provided with an air inlet 25, and the inner peripheral side 291 of the pot frame body 20 is provided with an air outlet 26. The outer peripheral side 292 of the pot frame body 20 refers to the outer ring surface of the pot frame body 20 away from the central through hole 24.

[0036] It is understood that in this embodiment, the air inlet 25 is located on the outer peripheral side 292 of the pot frame body 20, and the air outlet 26 is located on the inner peripheral side 291 of the pot frame body 20. This allows the low-temperature air to flow from the air inlet 25 to the air outlet 26, passing through the entire pot frame body 20 radially. The low-temperature air has a longer flow path, allowing it to stay in the heat insulation cavity 23 for a longer time. This enables the low-temperature air to exchange heat more fully with the pot frame body 20, facilitating the full recovery of the heat energy of the pot frame body 20, reducing heat loss, and supplementing the flame at the burner hole 53 with secondary air at a higher temperature, thereby further improving the thermal efficiency of the stove 40.

[0037] like Figure 6As shown, in some embodiments, the pot frame body 20 further includes a partition 27, which is located between the upper heat-insulating plate 211 and the lower plate 221. The partition 27 is connected to the upper heat-insulating plate 211 and / or the lower plate 221 to divide the heat-insulating cavity 23 into a first cavity 231 and a second cavity 232. The air inlet 25 and the air outlet 26 are connected to the first cavity 231 to form a gas replenishment channel 28. The second cavity 232 is located below the first cavity 231.

[0038] Understandably, on the one hand, by dividing the heat insulation cavity 23 into a first cavity 231 and a second cavity 232 arranged vertically by the partition 27, the double-layer cavity has better heat insulation performance than a single-layer cavity, which can further reduce the heat loss of the pot frame body 20. On the other hand, as... Figure 7 , Figure 7 The direction indicated by the small dashed arrow is the flow direction of the low-temperature air. The air supply channel 28 runs through the entire pot frame body 20 radially. Compared with the entire heat insulation cavity 23, the space inside the first cavity 231 is narrower, which makes the flow velocity of the low-temperature air along the air supply channel 28 faster and the heat energy more concentrated in the narrow space. At the same time, due to the double heat insulation effect of the second cavity 232 and the heat insulation upper plate 211, the heat energy inside the first cavity 231 is less likely to dissipate, thus making the heat exchange efficiency of the low-temperature air inside the first cavity 231 higher.

[0039] It should also be noted that in some embodiments, the pot frame body 20 may include more partition structures, which may be disposed in the second cavity and divide the second cavity into more cavities, thereby further improving the heat insulation performance of the pot frame body 20.

[0040] In some embodiments, a heat insulation component may also be provided in the second cavity 232. Compared with air, the heat insulation component has a better heat insulation effect, which can improve the heat insulation performance of the pot rack body 20, further reduce the impact of the external low-temperature airflow on the flame and the loss of combustion heat energy, and further reduce the heat dissipation of the first cavity 231 to the outside, so that the low-temperature air can absorb more heat energy when flowing through the first cavity 231, thereby further improving the thermal efficiency of the stove 40.

[0041] The insulation element can be arranged around the outer periphery of the central through hole 24, and the insulation element can also be formed of aerogel within the second cavity 232, which can improve the insulation effect of the insulation element. Of course, in other embodiments, the insulation element can also be formed of other heat insulation materials.

[0042] In some embodiments, the heat insulation component can fill the second cavity 232, that is, the heat insulation component is in contact with the inner wall of the second cavity 232, and there is no gap between the heat insulation component and the inner wall of the second cavity 232, which can further improve the heat insulation performance of the pot frame 10.

[0043] In some embodiments, the partition 27 may extend around the outer periphery of the central through hole 24, such that the first cavity 231 formed between the partition 27 and the heat insulation upper plate 211 extends around the outer periphery of the central through hole 24, thereby allowing low-temperature air to flow into the first cavity 231 from all directions.

[0044] like Figure 6 As shown, in some embodiments, along the axial direction of the pot frame body 20, the length of the first cavity 231 is less than the length of the second cavity 232. It should be noted that the axial direction of the pot frame body 20 is parallel to the extension direction of the centerline K of the central through hole 24. Figure 5 Taking the perspective shown as an example, when the pot rack 10 is placed on a table or countertop, the center line K of the central through hole 24 is perpendicular to the horizontal plane, the axis of the pot rack body 20 is perpendicular to the horizontal plane, and the length of the first cavity 231 along the axis of the pot rack body 20 is smaller, which makes the space inside the first cavity 231 narrower, thereby making the flow rate of low temperature air along the air replenishment channel 28 faster, and the heat energy more concentrated in the narrow space.

[0045] In some embodiments, at least a portion of the air supply channel 28 extends in a curved direction toward the central through-hole 24. It will be understood that, see [link to previous document]. Figure 6 On a plane parallel to the center line K of the boiler body 20, the shape of the projection of the air supply channel 28 is a line that extends continuously towards the central through hole 24 and has a curved segment. The curved segment can be an arc, a broken line, or a combination of an arc and a broken line. The curved segment can extend the length of the air supply channel 28, thereby extending the flow path of the low-temperature air and enabling the low-temperature air to fully exchange heat with the boiler body 20.

[0046] In some embodiments, the air supply channel 28 includes a first air guide section 281, a first curved section 282, a second curved section 283, and a second air guide section 284 arranged sequentially in the direction of the central through hole 24. The first curved section 282 is connected to the second air guide section 284 and extends downward from the second air guide section 284; the second curved section 283 is connected to the first curved section 282 and extends upward from the first curved section 282 to the second air guide section 284.

[0047] It is understandable that the first curved section 282 and the second curved section 283 form a curved structure that bulges towards the second cavity 232. When the low-temperature air flows along the air supply channel 28, it needs to flow through the first air guide section 281, and then flow downward along the first curved section 282 to the connection between the first curved section 282 and the second curved section 283. Then it flows upward along the second curved section 283 to the second air guide section 284. When the low-temperature air passes through the curved structure, it needs to flow downward first and then upward, which can prolong the flow path of the low-temperature air. In addition, the low-temperature air needs to make more detours during the flow process, which makes it easier for the low-temperature air to form vortices during the flow process. This can enhance the disturbance of the low-temperature air in the air supply channel 28, so that the low-temperature air can fully exchange heat with the boiler body 20.

[0048] In some embodiments, a concentrating groove 293 is formed on the top surface of the heat-insulating upper plate 211 at the portion corresponding to the first curved section 282 and the second curved section 283. The concentrating groove 293 is a groove-shaped structure formed on the top of the pot frame body 20, with the groove opening facing upwards. During the process of high-temperature flue gas being discharged from the combustion space along the exhaust channel, when the high-temperature flue gas flows to the concentrating groove 293, the high-temperature flue gas first flows downwards to the bottom of the concentrating groove 293, and then rises upwards out of the concentrating groove 293, thus... The high-temperature flue gas undergoes more meandering flow during its flow, making it easier to form vortices. This enhances the disturbance of the high-temperature flue gas within the combustion space, allowing it to remain there for a longer period. This further improves the heat exchange efficiency between the high-temperature flue gas and the cookware, ensuring full utilization of the heat energy carried by the flue gas. In addition, the energy-concentrating trough 293 can also be used to contain liquids overflowing from the cookware, preventing them from flowing to the burner 50's flame outlet 53 and clogging it.

[0049] In some embodiments, the air supply channel 28 further includes an air intake section 285 and / or an air outlet section 286.

[0050] The air-drawing section 285 is located on the side of the first air-guiding section 281 away from the first curved section 282. The distance between the air-drawing section 285 and the top surface of the pot support leg 31 in the axial direction of the pot frame body 20 is less than the distance between the top surface of the first air-guiding section 281 and the top surface of the pot support leg 31 in the axial direction of the pot frame body 20. It can be understood that the top surface of the pot support leg 31 is a bearing surface for contacting the bottom surface of the pot, and the top surface of the pot support leg 31 can be parallel to the horizontal plane. The bleed section 285 is connected to the air inlet 25 and the first air guide section 281. The bleed section 285 and the first air guide section 281 are at different heights, which requires the flow direction of the low-temperature air to change when it flows from the bleed section 285 to the first air guide section 281, which can enhance the disturbance of the low-temperature air in the air replenishment channel 28. In addition, compared with the horizontal extension, the bleed section 285 and the first air guide section 281 have a downward inclined extension tendency, which can extend the length of the bleed section 285 and the first air guide section 281.

[0051] The exhaust section 286 is located on the side of the second air guide section 284 away from the second curved section 283. The distance between the exhaust section 286 and the top surface of the pot support leg 31 in the axial direction of the pot frame body 20 is greater than the distance between the second air guide section 284 and the top surface of the pot support leg 31 in the axial direction of the pot frame body 20. It can be understood that the exhaust end is connected to the exhaust port 26 and the second air guide section 284. The different heights of the exhaust section 286 and the second air guide section 284 require a change in flow direction when the low-temperature air flows from the second air guide section 284 to the exhaust section 286, which can enhance the disturbance of the low-temperature air in the air replenishment channel 28. In addition, compared with the horizontal extension, the second air guide section 284 has a downward inclined extension tendency towards the exhaust section 286, which can extend the length of the second air guide section 284 towards the exhaust section 286.

[0052] In some embodiments, the air inlet 25 can be located on the outer peripheral side 292 of the pot frame body 20 near the top surface of the pot frame body 20. The distance between the air inlet 25 and the top surface of the pot support leg 31 is less than the distance between the air inlet 25 and the bottom surface of the pot support leg 31, so that the air inlet 25 is located closer to the exhaust channel. This allows some of the high-temperature flue gas discharged from the exhaust channel to be sucked into the replenishment channel 28 by the suction of the air inlet 25, so that the low-temperature air in the replenishment channel 28 can absorb the residual heat of the high-temperature flue gas, thereby making full use of the heat energy carried by the high-temperature flue gas.

[0053] In some embodiments, multiple air inlets 25 may be provided, such as two, three, or more. These multiple air inlets 25 can be arranged at intervals along the circumference of the pot frame body 20. The opening area of ​​a single air inlet 25 is relatively small, allowing the low-temperature air to enter the supplementary air channel 28 at a faster and more concentrated flow rate, resulting in greater suction and the ability to draw in more high-temperature flue gas. Of course, in other embodiments, only one air inlet 25 may be provided, extending around the circumference of the pot frame body 20.

[0054] In some embodiments, the air supply channel 28 protrudes from the lower plate 221 in a direction close to the central through hole 24, which can extend the length of the air supply channel 28 and thus extend the flow path of the low temperature air.

[0055] In some embodiments, when the burner 50 is placed in the central through hole 24, the air outlet 26 is located above the burner 50 and is positioned toward the flame outlet 53 of the burner 50, so that the airflow ejected from the air outlet 26 can flow toward the flame outlet 53 more quickly and accurately.

[0056] Among them, the air outlet 26 can be provided with multiple (e.g. Figure 3 The air outlet 26 can be provided with two, three or more outlets, which can be arranged at intervals along the circumference of the pot frame body 20. The opening area of ​​a single air outlet 26 is relatively small, which makes the flow rate of low-temperature air through the air outlet 26 out of the air replenishment channel 28 faster and more concentrated. Of course, in other embodiments, only one air outlet 26 can be provided (e.g. Figure 5 Furthermore, the air outlet 26 extends around the circumference of the main body 20 of the pot frame, which can increase the amount of air output per unit time.

[0057] In some embodiments, such as Figure 3 As shown, the pot support 31 extends downwards into the heat insulation cavity 23. It can be understood that when the temperature of the pot support 31 is higher than the temperature inside the heat insulation cavity 23, the pot support 31 can absorb the heat energy of the high-temperature flue gas as it flows through the exhaust channel and transfer it to the heat insulation cavity 23, thus allowing the temperature inside the heat insulation cavity 23 to be even higher. This enables the low-temperature air flowing through the heat insulation cavity 23 to absorb more heat energy. When the temperature of the pot support 31 is lower than the temperature inside the heat insulation cavity 23, the heat energy inside the heat insulation cavity 23 can be transferred to the bottom surface of the cookware through the pot support 31. This allows the heat energy of the pot rack 10 to be transferred to the cookware through solid-state heat conduction, improving the utilization rate of the cookware's heat energy.

[0058] Optionally, the pot support 31 may extend downwards only into the first cavity 231, meaning that the entire portion of the pot support 31 located within the heat insulation cavity 23 is entirely within the first cavity 231. This allows the heat from the pot support 31 to be directly transferred into the first cavity 231, thereby providing more heat energy to the low-temperature air flowing through the first cavity 231. Of course, in other embodiments, the pot support 31 may also extend downwards into the second cavity 232.

[0059] In some embodiments, the pot rack 10 may further include support legs 32, which are disposed at the bottom of the pot rack body 20. The number of support legs 32 may be two, three, or more, and the multiple support legs 32 may be arranged at intervals around the periphery of the pot rack body 20. The support legs 32 may be connected to the pot rack body 20 by a non-removable method such as welding or integral molding, or by a detachable method such as snap-fit ​​or threaded connection. When using the pot rack 10, the support legs 32 of the pot rack 10 are in contact with a flat surface such as a tabletop, which can separate the pot rack body 20 from the flat surface.

[0060] like Figure 1 As shown, in some embodiments, the support leg 32 is provided with a heat-insulating foot pad 33, which covers the bottom surface of the support leg 32. The heat-insulating foot pad 33 can separate the support leg 32 from the table or other flat surfaces, and has a good heat insulation effect. It can reduce the heat exchange between the pot rack 10 and the flat surface through the support leg 32, thereby further reducing the heat loss of the pot rack 10 to the outside, so that more heat of the pot rack 10 can be recovered and reused by the low-temperature air and the pot.

[0061] The insulating foot pad 33 can also be formed of aerogel, which can improve the heat insulation effect of the insulating foot pad 33. Of course, in other embodiments, the insulating component can also be formed of other heat-insulating materials, such as heat-resistant rubber or heat-resistant plastic.

[0062] Secondly, based on the aforementioned pot rack 10, this application also provides a stove 40, such as... Figure 8 As shown, the stove 40 includes a burner 50 and a pot rack 10 as described in any of the above embodiments, with the pot rack body 20 arranged around the outer periphery of the burner 50.

[0063] In some embodiments, the burner 50 may include an inner flame cap 51 and an outer flame cap 52. The outer flame cap 52 is arranged around the outer periphery of the inner flame cap 51. Both the inner flame cap 51 and the outer flame cap 52 are provided with flame outlet holes 53, from which combustible gas can be ejected and ignited by an ignition device.

[0064] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pot rack, characterized in that, include: The pot frame body includes an upper heat-insulating plate and a lower plate, wherein the lower plate is located below the upper heat-insulating plate and connected to the upper heat-insulating plate to form a heat-insulating cavity; and, A pot support foot, at least a portion of which is disposed on the top of the heat-insulating upper plate, the pot support foot being used to support the pot.

2. The pot rack according to claim 1, characterized in that, The heat-insulating upper panel is made of aerogel.

3. The pot rack according to claim 1, characterized in that, The main body of the pot frame has a central through hole for placing the burner. The outer peripheral side of the main body of the pot frame is provided with an air inlet communicating with the heat insulation cavity. The inner peripheral side of the main body of the pot frame is provided with an air outlet communicating with the heat insulation cavity. The air inlet communicates with the central through hole through the heat insulation cavity and the air outlet.

4. The pot rack according to claim 3, characterized in that, The main body of the pot frame also includes: A partition is located between the upper heat insulation plate and the lower heat insulation plate. The partition is connected to the upper heat insulation plate and / or the lower heat insulation plate to divide the heat insulation cavity into a first cavity and a second cavity. The air inlet and the air outlet are connected to the first cavity to form a replenishment channel. The second cavity is located below the first cavity.

5. The pot rack according to claim 4, characterized in that, Along the axial direction of the pot frame body, the length of the first cavity is less than the length of the second cavity.

6. The pot rack according to claim 4, characterized in that, At least a portion of the air supply channel bends and extends toward the central through-hole.

7. The pot rack according to claim 4, characterized in that, In the direction close to the central through hole, the air supply channel includes a first air guide section, a first curved section, a second curved section, and a second air guide section arranged in sequence. The first curved section is connected to the second air guide section and extends downward from the second air guide section; the second curved section is connected to the first curved section and extends upward from the first curved section to the second air guide section.

8. The pot rack according to claim 7, characterized in that, The gas replenishment channel also includes: An air-drawing section is located on the side of the first air-guiding section away from the first curved section. The distance between the air-drawing section and the top surface of the pot support leg in the axial direction of the pot frame body is less than the distance between the first air-guiding section and the top surface of the pot support leg in the axial direction of the pot frame body; and / or, The air outlet section is located on the side of the second air guide section away from the second curved section. The distance between the air outlet section and the top surface of the pot support leg in the axial direction of the pot frame body is greater than the distance between the second air guide section and the top surface of the pot support leg in the axial direction of the pot frame body.

9. The pot rack according to claim 4, characterized in that, The air supply channel protrudes from the lower plate in a direction close to the central through hole.

10. The pot rack according to claim 3, characterized in that, The pot support legs extend downward into the heat insulation cavity.

11. A stove, characterized in that, It includes a burner and a pot frame as described in any one of claims 1 to 10, the pot frame body being disposed around the outer periphery of the burner.

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