Pot rack and gas stove

Abstract

The invention relates to the technical field of stoves, in particular to a pot rack and a gas stove. The pot rack comprises a first plate body and a second plate body, the second tray body is arranged below the first tray body, and a closed first cavity is defined by the second tray body and the first tray body; the third plate body is arranged below the second plate body, a gap is formed between the third plate body and the second plate body, a second cavity is defined by the third plate body and the second plate body, and the first cavity and the second cavity are arranged around the axis of the pot rack; a first annular wall is arranged on the inner edge of the third disc body, a second annular wall is arranged on the outer edge of the third disc body, a first annular gap is defined by the first annular wall and the second disc body, a second annular gap is defined by the second annular wall and the second disc body, and the first annular gap and the second annular gap extend transversely. And the first annular gap and the second annular gap are respectively communicated with the second cavity. And the energy gathering effect of the pot rack is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of stoves, and in particular to a pot rack and a gas stove. Background Art

[0002] In modern stove design, the pan-shaped pot support is a key component whose main function is to limit the outward diffusion of heat generated by the burner to improve heating efficiency and save energy.

[0003] Currently, a pan stand includes a pan and multiple legs mounted on the pan. The pan surrounds the burner of a gas stove and supports the pan through the legs. The pan is typically single-layer or double-layer.

[0004] However, the energy-gathering effect of the pan-shaped pot rack needs to be improved to reduce unnecessary heat loss. Summary of the Invention

[0005] Based on this, the present application provides a pot rack and a gas stove to solve the problem of insufficient energy gathering effect of the disc-shaped pot rack in the related art.

[0006] In a first aspect, an embodiment of the present application provides a pot rack, comprising:

[0007] First plate body;

[0008] The second plate is disposed below the first plate, and the second plate and the first plate form a closed first cavity;

[0009] The third plate body is arranged below the second plate body and has a gap between it and the second plate body. The third plate body and the second plate body define a second cavity. The first cavity and the second cavity are both arranged around the axis of the pot rack; the inner edge of the third plate body is provided with a first annular wall, and the outer edge of the third plate body is provided with a second annular wall. The first annular wall and the second plate body define a first annular gap, and the second annular wall and the second plate body define a second annular gap. The first annular gap and the second annular gap both extend laterally, and the first annular gap and the second annular gap are respectively connected to the second cavity.

[0010] In a possible implementation, the height of the first annular gap is 0.5 mm-1 mm, and the height of the second annular gap is 0.5 mm-1 mm.

[0011] In a possible implementation, a plurality of support members are installed on the first annular wall and / or the second annular wall. The support members are at least partially located between the second disk body and the third disk body, and the support members are non-metallic members.

[0012] In a possible implementation manner, a projection of the second disk body in the vertical direction covers a projection of the second annular wall in the vertical direction.

[0013] In a possible implementation, the second disc body is provided with a plurality of first annular ribs protruding toward the second cavity, and a gap is provided between the first annular ribs and the third disc body;

[0014] The third plate body is provided with a plurality of second annular ribs protruding toward the second cavity, and a gap is formed between the second annular ribs and the second plate body;

[0015] Along the direction from the inner edge to the outer edge of the second plate body, a plurality of first annular convex ribs and a plurality of second annular convex ribs are arranged alternately, and the first annular convex ribs and the second annular convex ribs are both arranged around the axis of the pot rack.

[0016] In a possible implementation, the inner edge of the first plate is provided with a downwardly extending folded edge, and the bottom end of the folded edge extends beyond the second plate;

[0017] The folded edge is located on a side of the third plate body facing the axis of the pot rack, and a gap is provided between the folded edge and the inner edge of the third plate body.

[0018] In a possible implementation, the bottom end of the folded edge exceeds the bottom surface of the inner edge of the third plate; or,

[0019] The bottom end of the folded edge is flush with the bottom surface of the inner edge of the third disk body.

[0020] In one possible implementation, the bottom surface of the third disk body includes a plurality of step portions connected in sequence, and the heights of the plurality of step portions gradually increase from the outer edge to the inner edge of the third disk body. The first annular wall is arranged on the step portion adjacent to the inner edge of the third disk body.

[0021] In a possible implementation, the pot rack further includes a plurality of supporting legs, top ends of the supporting legs are respectively arranged through the second plate body and the third plate body, and the second plate body and the third plate body are respectively fixed to the supporting legs.

[0022] In one possible implementation, a plurality of legs are mounted on the first disk, top ends of the legs are higher than the top surface of the first disk, and a first height difference H1 between the top ends of the legs and the top surface of the first disk satisfies:

[0023] 5mm≤H1≤10mm.

[0024] In a second aspect, an embodiment of the present application provides a gas stove comprising a burner, a water receiving tray and the above-mentioned pot rack, wherein the pot rack and the burner are respectively arranged above the water receiving tray, and the pot rack is arranged around the outside of the burner, with an annular gap surrounding the burner between the pot rack and the burner.

[0025] In a possible implementation, there is a second height difference H2 between the bottom surface of the third plate body of the pot rack and the top surface of the outer edge of the water receiving tray, and H2 satisfies:

[0026] 7mm≤H2≤10mm;

[0027] There is a third height difference H3 between the bottom surface of the burner and the top surface of the middle portion of the water receiving tray, and H3 satisfies:

[0028] 6mm≤H3≤H2; and / or,

[0029] The inner edge of the pot frame defines a central hole for the burner to pass through. The outer diameter φ1 of the burner and the diameter φ2 of the central hole satisfy:

[0030] 1.05×φ1≤φ2≤1.14×φ1; and / or,

[0031] The width of the annular gap is 3mm-8mm.

[0032] The present application provides a pot rack and a gas stove, wherein the pot rack includes a first plate, a second plate and a third plate. The second plate is arranged below the first plate and encloses a closed first cavity with the first plate. The third plate is arranged below the second plate and defines a second cavity with the second plate. The first plate, the second plate and the third plate together form an energy-gathering plate of the pot rack. The first cavity and the second cavity effectively block the escape of high-temperature heat. The first cavity is closed, and its heat-blocking effect is stronger. There is a gap between the third plate and the second plate, which can effectively block heat transfer from the second plate to the third plate. A first annular wall is provided on the inner edge of the third plate, and a second annular wall is provided on the outer edge. The first annular wall and the second plate define a first annular gap, and the second annular wall and the second plate define a second annular gap. The first annular gap and the second annular gap both extend laterally, and the second cavity is connected to the outside through the first annular gap and the second annular gap. The first and second annular gaps increase the flow path between the air in the second cavity and the outside air. The air in the second cavity deflects as it flows through the first and second annular gaps, reducing heat convection in the second cavity and thereby improving the heat-blocking effect of the second cavity. This effectively enhances the energy-gathering effect of the pot rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 A schematic diagram of the structure of a pot rack provided in an embodiment of the present application;

[0035] Figure 2 An exploded view of a pot rack provided in an embodiment of the present application;

[0036] Figure 3 A cross-sectional view of a pot rack provided in an embodiment of the present application Figure 1 ;

[0037] Figure 4 for Figure 3 A partial enlarged schematic diagram of point A in the middle;

[0038] Figure 5 A cross-sectional view of a pot rack provided in an embodiment of the present application Figure 2 ;

[0039] Figure 6 for Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0040] Figure 7 A partial cross-sectional view of a gas stove provided in an embodiment of the present application.

[0041] Description of reference numerals:

[0042] 100 - first plate; 110 - folded edge; 120 - third annular wall; 130 - fourth annular wall;

[0043] 200 - second plate; 210 - first annular rib; 220 - annular table; 230 - annular flange;

[0044] 300 - third disk; 310 - first annular wall; 320 - second annular wall; 330 - second annular rib; 340 - step portion;

[0045] 410 - first cavity; 420 - second cavity; 430 - first annular gap; 440 - second annular gap;

[0046] 500-support member;

[0047] 600-support feet;

[0048] 700-foot piece;

[0049] 20-burner;

[0050] 30-water tray;

[0051] 40-panel;

[0052] 50-Chassis. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0055] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0056] The terms "first", "second" and "third" (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0057] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or display that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or display.

[0058] In the prior art, a pan stand consists of a concentrating disc and multiple legs mounted on it. The concentrating disc surrounds the burner of a gas stove, and the pan stand supports the cookware via the legs. The concentrating disc typically has a single or double layer. However, the concentrating effect of the pan stand needs to be improved to reduce unnecessary heat loss.

[0059] After repeated thinking and verification, the inventor discovered that if two cavities distributed upper and lower are set on the energy-gathering plate of the pot rack, the two cavities can effectively block the high-temperature heat in the energy-gathering plate from overflowing. The energy-gathering plate includes three plates distributed from top to bottom, and the upper plate and the middle plate are arranged to form a closed cavity. There is a gap between the lower plate and the middle plate, which effectively blocks the heat transfer between the two plates. The lower cavity is connected to the outside world through two annular gaps. The two annular gaps increase the flow path between the air in the lower cavity and the outside air, and the air in the lower cavity will turn when flowing through the annular gap, reducing the heat convection in the lower cavity. In this way, the energy-gathering effect of the pot rack is effectively improved.

[0060] In view of this, the inventors designed a pot rack and a gas stove, in which a first cavity and a second cavity are defined by a first plate, a second plate and a third plate from top to bottom, and the first cavity is closed. There is a gap between the second plate and the third plate, the inner edge of the third plate is provided with a first annular wall, the outer edge of the third plate is provided with a second annular wall, the first annular wall and the second plate define a first annular gap, and the second annular wall and the second plate define a second annular gap. The first annular gap and the second annular gap both extend horizontally. The first cavity and the second cavity effectively block the overflow of high-temperature heat. The heat of the second plate is not easily transferred to the third plate, and the first annular gap and the second annular gap reduce the heat convection in the second cavity. The energy-gathering effect of the pot rack is effectively improved.

[0061] The technical solutions of the pot rack and the gas stove provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0062] Reference Figures 1 to 7 As shown, the pot rack provided in the embodiment of the present application includes a first plate 100, a second plate 200, and a third plate 300. The first plate 100, the second plate 200, and the third plate 300 are all annular structures. The pot rack provided in the embodiment of the present application is a disc-shaped pot rack, wherein the first plate 100, the second plate 200, and the third plate 300 together define an energy-gathering disk of the pot rack. The energy-gathering disk is formed into a downwardly concave groove, and a center hole is provided in the middle of the energy-gathering disk to cooperate with the burner 20. When the burner 20 passes through the center hole, the burner 20 is higher than the inner edge of the first plate 100.

[0063] The second plate 200 is disposed below the first plate 100, and the second plate 200 and the first plate 100 enclose a closed first cavity 410. Schematically, the outer edge of the first plate 100 is fixedly connected to the outer edge of the second plate 200, and the inner edge of the first plate 100 is fixedly connected to the inner edge of the second plate 200. The first cavity 410 is located between the first and second plates 100, 200, and the first and second plates 100, 200 enclose the first cavity 410. When the burner 20 is operating, the first cavity 410 effectively prevents high-temperature heat from escaping.

[0064] In one possible implementation, Figure 2-Figure 6 As shown, the inner edge of the first plate 100 is provided with a third annular wall 120, and the inner edge of the second plate 200 is attached to the bottom surface of the third annular wall 120 and fixedly connected to the third annular wall 120. The outer edge of the first plate 100 is provided with a fourth annular wall 130, and the outer edge of the second plate 200 is provided with an annular table 220. The side of the annular table 220 away from the axis of the pot rack is provided with an annular flange 230. The top of the annular flange 230 abuts against the bottom surface of the fourth annular wall 130 and is fixedly connected to the fourth annular wall 130. For example, the first plate 100 and the second plate 200 can be fixed to each other by welding or snapping, etc., which is not limited here.

[0065] Those skilled in the art will appreciate that the first cavity 410 is not connected to the outside world and provides excellent thermal insulation. The first plate 100 and the second plate 200 can be made of the same material to avoid different thermal expansion coefficients between the first plate 100 and the second plate 200 in high-temperature environments. This, in turn, prevents the generation of additional internal stress between the first plate 100 and the second plate 200 in high-temperature environments. This internal stress could accelerate aging and wear of the pot rack, and could also damage the overall structural stability and safety of the pot rack, thereby ensuring the pot rack's service life.

[0066] The third tray 300 is positioned below the second tray 200 and spaced apart from it. This means it is not in direct contact with the second tray 200. Heat from the second tray 200 is not easily transferred to the third tray 300. The material of the third tray 300 can be different from that of the second tray 200, and the coefficients of thermal expansion can differ between the third tray 300 and the second tray 200. In high-temperature environments, the difference in deformation between the second and third trays 200 and 300 prevents additional internal stress from being generated, thus ensuring the longevity of the pot rack.

[0067] The third plate 300 and the second plate 200 define a second cavity 420. Both the first cavity 410 and the second cavity 420 are arranged around the axis of the pot rack. Compared to pot racks without cavities or with only one cavity in the related art, the first cavity 410 and the second cavity 420 effectively prevent the escape of high-temperature heat, improving the pot rack's energy-gathering effect.

[0068] The inner edge of the third plate 300 is provided with a first annular wall 310, and the outer edge of the third plate 300 is provided with a second annular wall 320. Both the first annular wall 310 and the second annular wall 320 extend horizontally and are arranged around the axis of the pot support. The second annular wall 320 also serves to strengthen the pot support's periphery.

[0069] The first annular wall 310 and the second plate 200 define a first annular gap 430, while the second annular wall 320 and the second plate 200 define a second annular gap 440. Both the first annular gap 430 and the second annular gap 440 extend laterally and communicate with the second cavity 420, respectively. Specifically, the first annular wall 310 and the inner edge of the second plate 200 define the first annular gap 430, while the second annular wall 320 and the annular table 220 of the second plate 200 define the second annular gap 440. From the outer edge to the inner edge of the pot rack, the height of the first annular gap 430 and the height of the second annular gap 440 are consistent. Those skilled in the art may adjust the widths of the first annular wall 310 and the second annular wall 320 according to actual needs, and these are not intended to be exclusive limitations.

[0070] The pot rack provided in this embodiment comprises a first plate 100, a second plate 200, and a third plate 300, which together form the pot rack's energy-concentrating plate. The first cavity 410 and the second cavity 420 effectively block the escape of high-temperature heat. The enclosed first cavity 410 further enhances heat-blocking effectiveness. A gap is provided between the third plate 300 and the second plate 200, effectively preventing heat transfer from the second plate 200 to the third plate 300. A first annular wall 310 is provided on the inner edge of the third plate 300, and a second annular wall 320 is provided on the outer edge. The first annular wall 310 and the second plate 200 define a first annular gap 430, while the second annular wall 320 and the second plate 200 define a second annular gap 440. Both the first annular gap 430 and the second annular gap 440 extend laterally, and the second cavity 420 communicates with the outside world through the first annular gap 430 and the second annular gap 440. The first annular gap 430 and the second annular gap 440 increase the flow path between the air in the second cavity 420 and the outside air. Furthermore, the air in the second cavity 420 deflects when passing through the first annular gap 430 and the second annular gap 440, reducing heat convection in the second cavity 420 and thereby improving the heat-blocking effect of the second cavity 420. This effectively enhances the energy-gathering effect of the pot rack.

[0071] The second annular wall 320 of the third plate 300 blocks at least a portion of the annular table 220 of the second plate 200 below the second plate 200 , thereby reducing the heat dissipation of the second plate 200 and reducing the heat loss of the pot rack.

[0072] In one embodiment, the height of the first annular gap 430 is 0.5 mm-1 mm, and the height of the second annular gap 440 is 0.5 mm-1 mm.

[0073] For example, the height of the first annular gap 430 can be 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, or 1 mm, etc., and is not intended to be exclusive. When the height of the first annular gap 430 or the height of the second annular gap 440 is less than 0.5 mm, in a high-temperature environment, the difference in thermal expansion coefficients between the second plate 200 and the third plate 300 may cause the second plate 200 and the third plate 300 to contact each other, easily transferring heat from the second plate 200 to the third plate 300, and easily generating additional internal stress between the second plate 200 and the third plate 300. When the height of the first annular gap 430 or the height of the second annular gap 440 is greater than 1 mm, the connection area between the second cavity 420 and the outside world is large, and heat convection is likely to occur in the second cavity 420.

[0074] That is to say, by limiting the height of the first annular gap 430 and the second annular gap 440, additional internal stress between the second plate body 200 and the third plate body 300 can be reliably avoided, thereby ensuring the service life of the pot rack. At the same time, it is not easy for the second plate body 200 to transfer heat to the third plate body 300, and heat convection is not easy to occur in the second cavity 420, thereby ensuring the thermal insulation effect of the second cavity 420, thereby reliably improving the energy gathering effect of the pot rack.

[0075] like Figure 3-Figure 6 As shown, a plurality of support members 500 are installed on the first annular wall 310 and / or the second annular wall 320 . The support members 500 are at least partially located between the second plate body 200 and the third plate body 300 . The support members 500 are non-metallic members.

[0076] The support member 500 may be installed only on the first annular wall 310 or the second annular wall 320, or may be installed on both the first annular wall 310 and the second annular wall 320. This embodiment is described by taking the example of installing the support member 500 on both the first annular wall 310 and the second annular wall 320, but this does not limit the scope of protection.

[0077] Exemplarily, the number of support members 500 on each of the first annular wall 310 and the second annular wall 320 is multiple, and the multiple support members 500 on the first annular wall 310 and the multiple support members 500 on the second annular wall 320 are spaced apart around the axis of the pot rack. Non-metallic protrusions can be used as the support members 500. Through holes for mounting the support members 500 are respectively defined on the first annular wall 310 and the second annular wall 320. A connecting shaft is provided at the bottom end of each support member 500, and the connecting shaft of the support member 500 is inserted into the corresponding through hole. Optionally, the height of the portion of the support member 500 located between the second plate 200 and the third plate 300 can be less than or equal to 0.5 mm. When the second plate 200 and the third plate 300 are not deformed or the deformation is minimal, the top of the support member 500 can be spaced apart from the second plate 200.

[0078] Those skilled in the art may choose the specific material of the support member 500 as needed, and this is not a limitation here. Using a non-metallic material as the support member 500 prevents heat from the second plate 200 from being easily transferred through the support member 500 to the third plate 300 when the top of the support member 500 contacts the second plate 200, thereby ensuring the energy-gathering effect of the pot rack.

[0079] In this embodiment, the support member 500 on the first annular wall 310 can ensure the height of the first annular gap 430, and the support member 500 on the second annular wall 320 can ensure the height of the second annular gap 440. Under conditions such as manufacturing or thermal deformation of the pot stand, after the top end of the support member 500 abuts against the second plate body 200, the height of the first annular gap 430 and / or the second annular gap 440 can be maintained.

[0080] In other embodiments, a connecting piece is provided between the first annular wall 310 and / or the second annular wall 320 and the second disk body 200, the bottom end of the connecting piece is connected to the annular wall, and the top end of the connecting piece is connected to the second disk body 200, and the height of the first annular gap 430 and / or the second annular gap 440 is ensured by the connecting piece.

[0081] In one embodiment, Figure 5 and Figure 6 As shown, the projection of the second plate 200 in the vertical direction covers the projection of the second annular wall 320 in the vertical direction.

[0082] The distance between the outer edge of the second annular wall 320 and the axis of the pot rack is less than or equal to the distance between the outer edge of the second plate 200 and the axis of the pot rack. In other words, the outer edge of the second annular wall 320 does not extend beyond the outer edge of the second plate 200. This prevents soup or dirt from flowing from the outer edge of the second plate 200 into the second cavity 420 during cooking, making cleaning and maintenance of the pot rack easier.

[0083] In one embodiment, Figure 3-Figure 6 As shown, the second plate 200 has several first annular ribs 210 projecting toward the second cavity 420, with a gap between the first annular ribs 210 and the third plate 300. For example, the first annular ribs 210 projecting toward the third plate 300 can be formed on the second plate 200 by stamping, with the first annular ribs 210 having an arcuate cross-section. Gas in the second cavity 420 can flow through the first annular ribs 210 via the gaps between the first annular ribs 210 and the third plate 300. As will be appreciated, the flow area of ​​the second cavity 420 is reduced at the location of the first annular ribs 210.

[0084] The third plate 300 has a plurality of second annular ribs 330 projecting toward the second cavity 420, with a gap between the second annular ribs 330 and the second plate 200. The second annular ribs 330 projecting toward the second plate 200 can also be formed on the third plate 300 by stamping. The flow area of ​​the second cavity 420 at the locations of the second annular ribs 330 is also reduced, allowing gas in the second cavity 420 to flow through the gaps between the second annular ribs 330 and the second plate 200.

[0085] The first annular rib 210 and the second annular rib 330 reduce the flow area of ​​the second cavity 420 at localized locations, forming a plurality of annular contraction cavities within the second cavity 420. This can slow the convection velocity of the hot air within the second cavity 420, reduce heat loss caused by convection, and effectively improve the thermal efficiency of the cooktop. Optionally, the first annular rib 210 can be provided on the sidewall of the second plate 200, and the second annular rib 330 can be provided on the sidewall of the third plate 300. Because the flow area of ​​the second cavity 420 between the sidewalls of the second plate 200 and the sidewalls of the third plate 300 is relatively small, the first annular rib 210 and the second annular rib 330 can effectively slow the convection velocity of the hot air within the second cavity 420, reducing convection within the second cavity 420.

[0086] Along the direction from the inner edge to the outer edge of the second plate body 200, a plurality of first annular ribs 210 and a plurality of second annular ribs 330 are alternately arranged, and the first annular ribs 210 and the second annular ribs 330 are both arranged around the axis of the pot rack.

[0087] The number of first annular ribs 210 and second annular ribs 330 is not limiting and can be arranged as needed by those skilled in the art. The staggered arrangement of the first annular ribs 210 and second annular ribs 330 causes the gas in the second cavity 420 to flow in a zigzag pattern as it passes through the first annular ribs 210 and second annular ribs 330. This further slows the convection velocity of the hot air in the second cavity 420, reduces heat loss due to convection, and effectively improves the thermal efficiency of the stove.

[0088] In other embodiments, the first annular rib 210 and the second annular rib 330 may also be arranged opposite to each other, with a gap between the first annular rib 210 and the second annular rib 330 .

[0089] In one embodiment, Figure 2-Figure 6 As shown, the inner edge of the first plate 100 is provided with a downwardly extending folded edge 110, and the bottom end of the folded edge 110 exceeds the second plate 200. The folded edge 110 can be formed on the inner edge of the first plate 100 by stamping, and the dimension of the folded edge 110 on the axis of the pot rack is greater than the thickness of the inner edge of the second plate 200.

[0090] The folded edge 110 is located on a side of the third plate 300 facing the axis of the pot rack, and a gap is formed between the folded edge 110 and an inner edge of the third plate 300 .

[0091] Those skilled in the art will appreciate that the pot support surrounds the outside of the burner 20, with an annular gap between the inner edge of the pot support and the sidewall of the burner 20. Secondary air required for combustion in the burner 20 enters through this gap. The folded edge 110 is located on the side of the first annular gap 430 facing the burner 20. The folded edge 110 at least partially blocks the air in the second cavity 420 from flowing toward the gap between the burner 20 and the pot support. The folded edge 110 also at least partially blocks the air between the burner 20 and the pot support from flowing into the first annular gap 430. It is worth noting that the gap between the folded edge 110 and the inner edge of the third plate 300 ensures that the second cavity 420 can communicate with the outside world through the first annular gap 430.

[0092] The folded edge 110 provided on the first plate 100 effectively blocks air convection within the second cavity 420, reducing the impact of air flowing out of the second cavity 420 through the first annular gap 430 on the secondary air intake of the burner 20. This facilitates the secondary air supply to the burner 20, resulting in more complete combustion and higher combustion efficiency. Furthermore, the folded edge 110 provides a certain degree of diversion, preventing soup or other liquids from flowing down the inner edge of the pot support from entering the second cavity 420.

[0093] In a specific embodiment, Figure 2-Figure 6 As shown, the bottom end of the folded edge 110 exceeds the bottom surface of the inner edge of the third tray 300 ; alternatively, the bottom end of the folded edge 110 is flush with the bottom surface of the inner edge of the third tray 300 .

[0094] Specifically, the bottom end of the folded edge 110 is no higher than the bottom surface of the inner edge of the third plate 300. This configuration allows the folded edge 110 to completely block the air in the gap between the burner 20 and the pot support from blowing directly toward the first annular gap 430, while also completely blocking the air in the second cavity 420 from blowing directly toward the gap between the burner 20 and the pot support via the first annular gap 430.

[0095] This arrangement further blocks air convection within the second cavity 420 and reduces the impact of air flowing out of the second cavity 420 through the first annular gap 430 on the secondary air intake of the burner 20. Furthermore, the deflecting effect of the folded edge 110 prevents soup or the like from flowing down the inner edge of the pot rack and entering the second cavity 420.

[0096] In one embodiment, Figure 4 and Figure 6 As shown, the bottom surface of the third disk body 300 includes a plurality of step portions 340 connected in sequence. The heights of the plurality of step portions 340 gradually increase from the outer edge to the inner edge of the third disk body 300. The first annular wall 310 is arranged on the step portion 340 adjacent to the inner edge of the third disk body 300.

[0097] The step portion 340 can be formed on the bottom surface of the third plate 300 by stamping. The step portion 340 includes an inclined wall and a straight wall connected in sequence. The height of the straight walls of the plurality of step portions 340 gradually increases from the outer edge to the inner edge of the third plate 300. For example, Figure 6 As shown, the rightmost step portion 340 is adjacent to the inner edge of the third plate 300, and the straight wall of the rightmost step portion 340 defines the first annular wall 310. Those skilled in the art can set the number of steps 340 on the third plate 300 and the height of each step portion 340 as needed, and this is not a single limitation.

[0098] Through the above arrangement, when the gas flows in the second cavity 420, it makes multiple turns when passing through multiple step portions 340. The step portions 340 reduce the air flow rate in the second cavity 420, slow down the hot air convection speed in the second cavity 420, reduce the heat loss caused by heat convection, and effectively improve the thermal efficiency of the stove.

[0099] like Figure 3-Figure 6 As shown, the pot rack further includes a plurality of supporting legs 600 , the top ends of the supporting legs 600 respectively pass through the second plate 200 and the third plate 300 , and the second plate 200 and the third plate 300 are respectively fixed to the supporting legs 600 .

[0100] The pot stand can be placed on the gas stove panel 40 or the water tray 30 via multiple support legs 600. Each support leg 600 is a sheet-like structure, and multiple support legs 600 are spaced apart around the pot stand's axis. The second and third plates 200 and 300 each have mounting holes for the support legs 600 to pass through. The tops of the support legs 600 are then passed through the mounting holes of the third and second plates 300, respectively, and then secured to the second and third plates 200 and 300, respectively, by welding.

[0101] The third tray 300 is secured below the second tray 200 via a plurality of support legs 600, creating a gap between the third tray 300 and the second tray 200 to define a second cavity 420. The second tray 200 and the third tray 300 are fixedly connected via the plurality of support legs 600 through point contact, effectively reducing heat transfer from the second tray 200 to the third tray 300, lowering heat loss and ensuring a balanced and stable temperature in the high-temperature zone. This improves the heating performance of the pan rack with trays and enhances energy efficiency.

[0102] In other embodiments, a support column may be installed between the second tray 200 and the third tray 300 , that is, the top end of the support column is connected to the second tray 200 , and the bottom end of the support column is connected to the third tray 300 .

[0103] In one embodiment, Figure 1-Figure 7As shown, a plurality of foot pieces 700 are installed on the first plate body 100, and the top of the foot piece 700 is higher than the top surface of the first plate body 100. The first height difference H1 between the top of the foot piece 700 and the top surface of the first plate body 100 satisfies: 5mm≤H1≤10mm.

[0104] Illustratively, the bottom end of the leg 700 can be connected to the top surface of the first tray 100 by welding. The point where the top surface of the first tray 100 connects to the leg 700 is not the highest point on the top surface of the first tray 100, but the top end of the leg 700 is higher than the highest point on the top surface of the first tray 100. It will be appreciated that the pot stand can support the pot using multiple legs 700. H1 is the height difference between the top end of the leg 700 and the highest point on the top surface of the first tray 100. When the pot stand supports the pot, H1 is the height of the exhaust port.

[0105] For example, H1 can be 5mm, 6mm, 8mm, or 10mm, and this is not a single limitation. When H1 is less than 5mm, it affects CO emissions during combustion, posing a safety hazard. When H1 is greater than 10mm, it affects the energy-gathering effect of the pot holder. Therefore, limiting the size of H1 can ensure both the safety of the gas stove and the energy-gathering effect of the pot holder.

[0106] This application also provides a gas stove, such as Figure 7 As shown, the gas stove includes a burner 20, a water receiving tray 30 and the above-mentioned pot rack. The pot rack and the burner 20 are respectively arranged above the water receiving tray 30, and the pot rack is arranged around the outside of the burner 20. There is an annular gap around the burner 20 between the pot rack and the burner 20.

[0107] like Figure 7 As shown, the gas stove also includes a base 50 and a panel 40 mounted on the base 50. The upper portion of the panel 40 abuts against the lower portion of the water tray 30. The pot stand is mounted on the water tray 30 via support legs 600. The pot stand forms an annular groove, and the burner 20 extends through a hole in the center of the annular groove. The burner 20 is located in the center of the annular groove. During combustion, secondary air enters the burner 20 through the annular gap.

[0108] In one possible implementation, to ensure sufficient combustion of the burner 20, the third annular wall 120 of the first plate 100 of the pot rack is at least 3 mm lower than the outer fire hole or fire groove of the burner 20 to avoid affecting and interfering with the secondary air supply.

[0109] The gas stove provided in the present application adopts the above-mentioned pot rack, so the energy gathering effect of the pot rack is effectively improved, the cooking efficiency of the gas stove is higher, and the energy efficiency of the gas stove is higher.

[0110] In one embodiment, Figure 1-Figure 7As shown, there is a second height difference H2 between the bottom surface of the third plate body 300 of the pot rack and the top surface of the outer edge of the water receiving tray 30, and H2 satisfies: 7mm≤H2≤10mm.

[0111] Among them, when the burner 20 is burning, an outer ring fire is generated on its outer ring fire cover, and an inner ring fire is generated on the inner ring fire cover. H2 is the secondary air supply height of the outer ring fire. For example, the size of H2 can be 7mm, 8mm, 9mm or 10mm, etc., and is not limited here. When H2 is less than 7mm, the secondary air of the outer ring fire is insufficient, affecting combustion; when H2 is greater than 10mm, the secondary air supply of the outer ring fire is too much, and the excessive secondary air will take away heat, affecting the energy gathering effect of the pot rack. That is, the above setting ensures the combustion of the outer ring fire of the burner 20 and the energy gathering effect of the pot rack.

[0112] There is a third height difference H3 between the bottom surface of the burner 20 and the top surface of the middle portion of the water receiving tray 30 , and H3 satisfies: 6 mm≤H3≤H2.

[0113] That is to say, H3 is not greater than H2, and the size of H3 is not less than 6mm. H3 is the secondary air supply height of the inner ring fire when the burner 20 is burning. When H3 is less than 6mm, when the burner 20 is burning, the secondary air supply of the inner ring fire is too small, the inner ring fire burns incompletely, and the CO content in the flue gas exceeds the standard; when H3 is greater than H2, the secondary air supply of the inner ring fire is too large, the convection of cold and hot air in the inner ring fire combustion area increases, and more heat is taken away, affecting the energy-gathering effect of the pot rack. The above-mentioned setting ensures the combustion of the inner ring fire of the burner 20 and the energy-gathering effect of the pot rack.

[0114] The inner edge of the pot support defines a central hole for the burner 20 to pass through, and the outer diameter φ1 of the burner 20 and the diameter φ2 of the central hole satisfy: 1.05×φ1≤φ2≤1.14×φ1.

[0115] In other words, the diameter of the center hole is between 1.05 and 1.14 times the outer diameter of the burner 20. A secondary air supply channel is formed between the inner diameter of the pot support center hole and the outer periphery of the burner 20, which allows for combustion in the burner 20. When φ2 < 1.05 × φ1, insufficient secondary air supply results in incomplete combustion and excessive CO. When φ2 > 1.14 × φ1, excessive secondary air supply affects the pot support's energy-gathering effect and leads to excessive oxygen in the high-temperature zone during combustion, causing excessive NOx. In other words, this configuration ensures both sufficient combustion of the burner 20 and the pot support's energy-gathering effect.

[0116] The width of the annular gap is 3mm-8mm.

[0117] The annular gap defines the secondary air supply channel for burner 20 combustion. For example, the width of the annular gap can be 3mm, 4mm, 5mm, 6mm, or 8mm, etc., and this is not a single limit. When the annular gap is less than 3mm, the secondary air supply is insufficient, combustion is incomplete, and CO levels exceed the standard. When the annular gap is wider than 8mm, the secondary air supply is excessive, affecting the energy-gathering effect of the pot support. In other words, this configuration ensures sufficient combustion of the burner 20 and the energy-gathering effect of the pot support.

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pot rack, characterized in that: include: a first plate (100); A second disk (200) is disposed below the first disk (100), and the second disk (200) and the first disk (100) are arranged to form a closed first cavity (410); The third plate (300) is arranged below the second plate (200) and is spaced apart from the second plate (200). The third plate (300) and the second plate (200) define a second cavity (420). The first cavity (410) and the second cavity (420) are both arranged around the axis of the pot rack. The inner edge of the third plate (300) is provided with a first annular wall (310), and the outer edge of the third plate (300) is provided with a second annular wall (320). The first annular wall (310) and the second plate (200) define a first annular gap (430). The second annular wall (320) and the second plate (200) define a second annular gap (440). The first annular gap (430) and the second annular gap (440) both extend laterally. The first annular gap (430) and the second annular gap (440) are respectively connected to the second cavity (420).

2. The pot stand according to claim 1, characterized in that: The height of the first annular gap (430) is 0.5 mm to 1 mm, and the height of the second annular gap (440) is 0.5 mm to 1 mm.

3. The pot stand according to claim 2, characterized in that: A plurality of support members (500) are installed on the first annular wall (310) and / or the second annular wall (320), and the support members (500) are at least partially located between the second disk body (200) and the third disk body (300), and the support members (500) are non-metallic members.

4. The pot stand according to claim 1, characterized in that: The projection of the second disk (200) in the vertical direction covers the projection of the second annular wall (320) in the vertical direction.

5. The pot stand according to claim 1, characterized in that: The second disk (200) is provided with a plurality of first annular ribs (210) protruding toward the second cavity (420), and a gap is provided between the first annular ribs (210) and the third disk (300); The third disk (300) is provided with a plurality of second annular ribs (330) protruding toward the second cavity (420), and a gap is provided between the second annular ribs (330) and the second disk (200); Along the direction from the inner edge to the outer edge of the second plate body (200), a plurality of the first annular ribs (210) and a plurality of the second annular ribs (330) are arranged alternately, and the first annular ribs (210) and the second annular ribs (330) are both arranged around the axis of the pot rack.

6. The pot support according to claim 1, characterized in that: The inner edge of the first disk body (100) is provided with a folded edge (110) extending downward, and the bottom end of the folded edge (110) exceeds the second disk body (200); The folded edge (110) is located on the side of the third plate (300) facing the axis of the pot rack, and there is a gap between the folded edge (110) and the inner edge of the third plate (300).

7. The pot support according to claim 6, characterized in that: The bottom end of the folded edge (110) exceeds the bottom surface of the inner edge of the third plate (300); or, The bottom end of the folded edge (110) is flush with the bottom surface of the inner edge of the third disk (300).

8. The pot support according to claim 1, characterized in that: The bottom surface of the third disk body (300) includes a plurality of step portions (340) connected in sequence, and the heights of the plurality of step portions (340) gradually increase from the outer edge to the inner edge of the third disk body (300). The first annular wall (310) is arranged on the step portion (340) adjacent to the inner edge of the third disk body (300).

9. The pot support according to claim 1, characterized in that: The pot rack further comprises a plurality of supporting legs (600), the top ends of the supporting legs (600) respectively passing through the second plate body (200) and the third plate body (300), and the second plate body (200) and the third plate body (300) are respectively fixed to the supporting legs (600).

10. The pot support according to claim 1, characterized in that: A plurality of foot pieces (700) are mounted on the first disk body (100), the top ends of the foot pieces (700) being higher than the top surface of the first disk body (100), and a first height difference H1 between the top ends of the foot pieces (700) and the top surface of the first disk body (100) satisfying: 5mm≤H1≤10mm.

11. A gas stove, characterized in that: The invention comprises a burner (20), a water receiving tray (30) and a pot stand according to any one of claims 1 to 10, wherein the pot stand and the burner (20) are respectively arranged above the water receiving tray (30), the pot stand is arranged around the outside of the burner (20), and an annular gap surrounding the burner (20) is provided between the pot stand and the burner (20).

12. The gas stove according to claim 11, characterized in that: There is a second height difference H2 between the bottom surface of the third plate body (300) of the pot rack and the top surface of the outer edge of the water receiving tray (30), and H2 satisfies: 7mm≤H2≤10mm; There is a third height difference H3 between the bottom surface of the burner (20) and the top surface of the middle portion of the water receiving tray (30), and H3 satisfies: 6mm≤H3≤H2; and / or, The inner edge of the pot support defines a central hole for the burner (20) to pass through, and the outer diameter φ1 of the burner (20) and the diameter φ2 of the central hole satisfy: 1.05×φ1≤φ2≤1.14×φ1; and / or, The width of the annular gap is 3mm-8mm.

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