Pot stand

Abstract

The present invention provides a pot support, belonging to the technical field of gas stoves. The pot support comprises an upper shell, a lower shell, and a heat insulation assembly. The lower shell is connected to the bottom of the upper shell, and the upper and lower shells enclose a heat insulation cavity. The heat insulation assembly is disposed in the heat insulation cavity and is used to divide the heat insulation cavity into at least two cavities. The lower shell has an exhaust hole, and the heat insulation assembly has a through hole connected to each cavity. The exhaust hole and the through hole enable gas to circulate within the heat insulation cavity. The present invention can reduce the downward radiation of heat from the burner, improve the energy concentration effect, and is less prone to deformation, cracking, and other problems, effectively extending the service life of the pot support.

Description

Technical Field

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

[0002] With the rapid development of society and the continuous improvement of people's living standards, people's daily life has become more convenient. The kitchen has evolved from the earliest earthen stoves to a variety of kitchen appliances. While these appliances make our lives more convenient, their safety has also attracted more and more attention.

[0003] The existing pot bracket has two main problems. On the one hand, due to the poor energy-gathering effect of the pot bracket, the heat of the burner radiates downward and the temperature rise of the panel increases. On the other hand, the existing pot bracket is internally closed and is prone to deformation, bulging and other problems after long-term use. Summary of the Invention

[0004] The present invention aims to provide a pot support that, through the thermal insulation assembly, reduces the downward radiation of burner heat, maximizes the energy-gathering effect of the stove, achieves thermal insulation of the upper layer of the pot support, and improves the user experience. The through-holes in the thermal insulation assembly enable gas flow between the two cavities, and the vent holes in the lower shell prevent the pot support from being sealed internally, which would lead to accelerated temperature rise and aging. This makes the pot support less susceptible to deformation after long-term use and prevents deformation and cracking during high-temperature sintering of the surface treatment, effectively extending the pot support's service life.

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, a pot support is provided. The pot support comprises:

[0007] upper shell;

[0008] A lower shell is connected to the lower side of the upper shell, and the upper shell and the lower shell are surrounded to form a heat-insulating cavity;

[0009] A heat insulation component is provided in the heat insulation cavity and is used to divide the heat insulation cavity into at least two cavities;

[0010] The lower shell is provided with an exhaust hole, and the heat insulation component is provided with a through hole connected to each of the cavities, so that the gas in the heat insulation cavity can flow through the exhaust hole and the through hole.

[0011] According to one embodiment of the present invention, the thermal insulation area of the thermal insulation assembly is larger than the projected area of the thermal insulation cavity on the bottom surface of the lower shell.

[0012] According to one embodiment of the present invention, the lower housing includes:

[0013] an outer side wall connected to the outer periphery of the upper shell;

[0014] an inner side wall connected to the inner periphery of the upper shell;

[0015] The bottom wall is connected between the outer wall and the inner wall, and the bottom wall is provided with a plurality of exhaust holes.

[0016] According to one embodiment of the present invention, the outer side wall includes a vertical section and an inclined section, and the inclined section is connected to the vertical section and the bottom wall;

[0017] The thermal insulation assembly includes at least one thermal insulation board, and each thermal insulation board includes, from the outside to the inside:

[0018] a first radial section, located above the inclined section and connected to the vertical section on its outer side;

[0019] a second radial section connected to the inner side of the first radial section and located above the inclined section;

[0020] a third radial segment, located above the bottom wall, with an outer side connected to an inner side of the second radial segment;

[0021] a fourth radial segment, which has a Z-shaped longitudinal section and is located above the bottom wall, with its outer side connected to the inner side of the third radial segment and its inner side connected to the bottom wall;

[0022] The fourth radial section, the inner side wall, and the bottom wall between the fourth radial section and the inner side wall form a heat storage area.

[0023] According to an embodiment of the present invention, the second radial segment and the third radial segment are both arranged obliquely, and the second radial segment is bent to form at least two steps.

[0024] According to one embodiment of the present invention, each of the steps comprises:

[0025] The first step surface is arranged to be inclined downward from the outside to the inside;

[0026] a second step surface connected to the inner side of the first step surface, the second step surface being arranged to be inclined upward from the outside to the inside;

[0027] The included angle between the first step surface and the second step surface is an acute angle, the second step surface is provided with a plurality of through holes, and the plurality of through holes are evenly distributed along the second step surface.

[0028] According to one embodiment of the present invention, the through holes on two adjacent second step surfaces are the same in number and correspond to each other in the upper and lower directions;

[0029] The area of the through hole on any second step surface is smaller than the area of the through hole on the adjacent outer second step surface.

[0030] According to an embodiment of the present invention, the surface area of the second step surface is a, and the gas outlet area of the through hole is b, wherein 0.02≤b / a≤0.1.

[0031] According to one embodiment of the present invention, the upper housing includes:

[0032] An upper shell body, the bottom of which is connected between the outer wall and the inner wall, the inner periphery of the upper shell body is bent downward to form an annular upper shell flange, and the upper shell flange is sleeved on the inner periphery of the inner wall;

[0033] an annular plate, sleeved on the outer periphery of the outer side wall, with a top portion connected to the outer periphery of the upper shell body;

[0034] wherein the upper shell is connected to the lower shell by means of the annular plate and the flange of the upper shell;

[0035] The longitudinal section of the upper shell body is Z-shaped or C-shaped.

[0036] According to one embodiment of the present invention, the upper shell is connected to a support leg, and the lower shell is connected to a base leg, and the base leg includes:

[0037] A connecting block, the top of which is fixedly connected to the lower shell;

[0038] The supporting block is provided with a mounting groove, and the bottom of the connecting block is inserted into the mounting groove.

[0039] An embodiment of the present invention has the following advantages or beneficial effects:

[0040] The present invention utilizes the thermal insulation assembly to reduce downward heat radiation from the burner, maximizing the stove's energy-gathering effect, achieving thermal insulation in the upper layer of the pot support, and improving the user experience. The through-holes in the thermal insulation assembly enable gas flow between the two cavities, and the vent holes in the lower shell prevent the pot support from becoming enclosed, which would accelerate temperature rise and aging. This prevents the pot support from deforming after extended use and prevents deformation and cracking during high-temperature sintering of the surface, effectively extending the pot support's service life.

[0041] By arranging downwardly inclined steps on the insulation board, the heat can be effectively blocked in a step-by-step manner when it is transferred downward, and a heat-insulating vortex is formed in the folding area to achieve the heat insulation effect of the upper layer of the pot support, thereby achieving better combustion efficiency than the original structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

[0043] Figure 1 is a schematic diagram showing a pot support according to an exemplary embodiment.

[0044] Figure 2 is a cross-sectional view of a pot support according to an exemplary embodiment.

[0045] Figure 3 is a cross-sectional view of a heat shield according to an exemplary embodiment.

[0046] The description of the accompanying drawings is as follows:

[0047] 100, insulation cavity; 200, heat storage area;

[0048] 1. Upper shell; 11. Upper shell body; 111. Upper shell flange; 12. Ring plate;

[0049] 2. Lower shell; 21. Outer side wall; 211. Vertical section; 212. Inclined section; 22. Inner side wall; 23. Bottom wall;

[0050] 3. Thermal insulation assembly; 30. Through hole; 31. First radial section; 32. Second radial section; 321. Step; 3211. First step surface; 3212. Second step surface; 33. Third radial section; 34. Fourth radial section;

[0051] 4. Support leg; 5. Bottom foot; 51. Connecting block; 52. Support block. DETAILED DESCRIPTION

[0052] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0053] The terms "a", "an", and "the" are used to indicate that there are one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.

[0054] A pot support according to an embodiment of the present invention includes an upper shell 1, a lower shell 2 and an insulation assembly 3. The lower shell 2 is connected to the bottom of the upper shell 1. The upper shell 1 and the lower shell 2 enclose an insulation cavity 100. The insulation assembly 3 is arranged in the insulation cavity 100 to divide the insulation cavity 100 into at least two cavities. The lower shell 2 is provided with an exhaust hole, and the insulation assembly 3 is provided with a through hole 30 connected to each cavity. The exhaust hole and the through hole 30 are used to realize the circulation of gas in the insulation cavity 100.

[0055] Among them, the upper shell 1 and the lower shell 2 jointly define an insulating cavity 100, and the insulating component 3 divides the insulating cavity 100 into two or more cavities. The insulating cavity 100 itself can reduce the radiant heat absorbed by the double-layer pot holder, and reduce the heat conducted from the top to the bottom of the insulating cavity 100. The insulating component 3 can further reduce the downward radiation of the burner heat, maximize the energy gathering effect of the stove, achieve the heat preservation effect of the upper layer of the pot holder, and improve the user experience.

[0056] Furthermore, through-holes 30 in the thermal insulation assembly 3 allow for air circulation within each cavity. The vent holes in the lower shell 2 prevent the pot holder from experiencing accelerated temperature rise and aging due to its enclosed interior, making it less susceptible to deformation after prolonged use and thus extending its service life. Especially during the entire pot holder's surface treatment and heating, good air circulation is achieved within the pot holder, preventing internal closure and reducing deformation, bulging, and other issues that may occur during the surface treatment process, thereby improving the overall pot holder manufacturing yield.

[0057] In a preferred embodiment of the present invention, the insulation area of the insulation assembly 3 is larger than the projected area of the insulation cavity 100 on the bottom surface of the lower shell 2 .

[0058] like Figure 2-3 As shown, by making the insulation area of the insulation assembly 3 larger than the projected area of the insulation cavity 100 on the bottom surface of the lower shell 2, the downward radiation of heat can be effectively reduced, thereby achieving the effect of reducing the temperature rise of the panel.

[0059] In a preferred embodiment of the present invention, the lower housing 2 comprises:

[0060] An outer wall 21 connected to the outer periphery of the upper shell 1;

[0061] The inner wall 22 is connected to the inner periphery of the upper shell 1, and the height of the outer wall 21 is greater than the height of the inner wall 22;

[0062] The bottom wall 23 is connected between the outer wall 21 and the inner wall 22, and is provided with a plurality of exhaust holes;

[0063] The outer wall 21 , the bottom wall 23 and the inner wall 22 enclose an annular cavity to form the lower shell 2 , and the bottom cover of the upper shell 1 is disposed above the annular cavity to form a heat-insulating cavity 100 .

[0064] Figure 1 As shown, multiple exhaust holes are evenly distributed along the circumference of the bottom wall 23. Because the insulation component 3 divides the insulation cavity 100 into two upper and lower cavities, when the pot support is heated, the gas in the insulation cavity 100 can be evenly discharged from the periphery of the pot support through the exhaust holes, avoiding problems such as deformation of the pot support due to excessive temperature.

[0065] In addition, the top of the inner wall 22 forms an inner wall flange outward, and the inner wall flange is connected to the inner periphery of the upper shell, thereby increasing the contact area between the lower shell 2 and the upper shell 1 and improving the supporting strength of the pot support.

[0066] The height of the outer wall 21 is greater than that of the inner wall 22 . To adapt to the structure of the upper shell 1 , the top surface of the upper shell 1 is also higher on the outside and lower on the inside, thereby increasing the reflection area of the upper shell 1 .

[0067] In a preferred embodiment of the present invention, the outer side wall 21 includes a vertical section 211 and an inclined section 212 , and the inclined section 212 is connected to the vertical section 211 and the bottom wall 23 ;

[0068] The heat insulation assembly 3 includes at least one heat insulation board, each heat insulation board including, from the outside to the inside, a first radial section 31, a second radial section 32, a third radial section 33, and a fourth radial section 34. The first radial section 31 is located above the inclined section 212 and its outer side is connected to the vertical section 211. The second radial section 32 is connected to the inner side of the first radial section 31 and is located above the inclined section 212. The third radial section 33 is located above the bottom wall 23 and its outer side is connected to the inner side of the second radial section 32. The fourth radial section 34 is located above the bottom wall 23 and its outer side is connected to the inner side of the third radial section 33. The inner side of the fourth radial section 34 is bent downward and connected to the bottom wall 23.

[0069] The fourth radial section 34 , the inner sidewall 22 , and the bottom wall 23 between the L-shaped annular groove 341 and the inner sidewall 22 form a heat storage area 200 .

[0070] Figure 2-3 As shown, the heat insulation component 3 can be one heat insulation board, or can be 2, 3, 4, 5, 6 or even more heat insulation boards. Figure 2 An insulation board is provided inside the middle insulation cavity 100, which is only for illustration and is not intended to limit the present application. Figure 2As can be seen, one end of the heat shield is connected to the outer periphery of the lower shell 2, and the other end is connected to the inner periphery of the lower shell 2. The heat shield divides the heat shield chamber 100 into two upper and lower chambers. The heat shield is arranged as a whole at an angle downward. The first radial section 31 is the first annular plate section located at the outermost side of the heat shield. The second radial section 32 is the second annular plate section connected to the inner side of the first annular plate section. The third radial section 33 is the third annular plate section located within the second annular plate section. The fourth radial section 34 is the fourth annular plate section located within the third annular plate section. The heat shield can be formed by stamping or rolling to form the first radial section 31, the second radial section 32, the third radial section 33, and the fourth radial section 34.

[0071] The first radial section 31 can be welded to the vertical section 211 of the lower shell 2, or Figure 2-3 As shown, the outer circumference of the first annular plate segment is bent upward to form a vertical plate segment corresponding to the vertical segment 211, the vertical plate segment is sleeved on the top inner circumference of the lower shell 2, and the inner side of the fourth radial segment 34 is welded to the bottom wall 23 of the lower shell 2 to fix the upper part of the insulation plate.

[0072] The fourth radial segment 34 is a fourth annular plate segment located at the innermost side of the heat shield. The inner side of the fourth radial segment 34 is bent downward to form an annular heat shield flange, which is welded to the bottom wall 23. Alternatively, the fourth radial segment 34 can be bent downward to form an annular groove with an L-shaped longitudinal cross-section, which is welded to the bottom wall 23. The heat storage area 200 formed by the fourth radial segment 34, the inner sidewall 22, and the bottom wall 23 located between the L-shaped annular groove 341 and the inner sidewall 22 achieves a certain energy storage and heat preservation effect. This reduces heat loss during use of the stove, allowing the temperature to reach the energy collection temperature more quickly when the stove is turned off and then turned on again, thereby improving combustion efficiency.

[0073] In a preferred embodiment of the present invention, the second radial segment 32 and the third radial segment 33 are both arranged obliquely, and the second radial segment 32 is bent to form at least two steps 321 .

[0074] Figure 2-3 As shown, by bending the second radial section 32 to form a step 321, the heat is effectively blocked in a stepped manner when it is transferred downward, and the folded area is drained downward to form a heat-insulating vortex, thereby achieving the heat insulation effect of the upper layer of the pot support and achieving better combustion efficiency than the original structure.

[0075] In addition, the third radial section 33 may also be bent to form a step 321 to enhance the heat insulation effect.

[0076] In a preferred embodiment of the present invention, each step 321 includes:

[0077] The first step surface 3211 is arranged to be inclined downward from the outside to the inside;

[0078] The second step surface 3212 is connected to the inner side of the first step surface 3211, and the second step surface 3212 is inclined upward from the outside to the inside;

[0079] The included angle between the first step surface 3211 and the second step surface 3212 is an acute angle. The second step surface 3212 is provided with a plurality of through holes 30 , and the plurality of through holes 30 are evenly distributed along the second step surface 3212 .

[0080] Figure 2-3 As shown, the second stepped surface 3212 is hidden between two adjacent first stepped surfaces 3211. Therefore, the through hole 30 provided on the second stepped surface 3212 not only allows for gas circulation but also prevents sand from entering the upper chamber of the heat-insulating cavity 100 through the vent and through hole 30 during the surface sandblasting process of the pot holder. To improve energy efficiency, the pot holder is made of stainless steel, which is surface-treated with enamel. The pre-enamel process requires sandblasting to enhance surface adhesion. The sand used for sandblasting is relatively fine. During the surface treatment of the pot holder, sand can easily enter the interior of the heat-insulating cavity 100 through the vent. After the second radial section 32 is bent, it forms a reverse shielding effect at the bottom. If sand does enter the pot holder through the bottom opening, it acts as a barrier, further preventing sand from entering the heat-insulating cavity 100 above the insulation board.

[0081] Furthermore, due to the insulating effect of the thermal insulation assembly 3, the temperature above the insulating cavity 100 is higher, while the temperature below the insulating cavity 100 is lower, creating a temperature difference. Therefore, the air above the insulating cavity 100 can exchange with the air emitted from the insulating cavity 100 below through the multiple through-holes 30 provided on the second stepped surface 3212, thereby accelerating the internal air circulation. Especially during the entire pot holder surface treatment and heating, good air circulation is achieved within the pot holder, preventing the pot holder from becoming blocked, reducing deformation and bulging during the surface treatment process, and improving the overall pot holder manufacturing yield.

[0082] In a preferred embodiment of the present invention, the number of through holes 30 on two adjacent second step surfaces 3212 is the same and corresponds to each other up and down;

[0083] The area of the through hole 30 on any second step surface 3212 is smaller than the area of the through hole 30 on the adjacent outer second step surface 3212 .

[0084] Figure 2-3 As shown, the through holes 30 on two adjacent second step surfaces 3212 correspond to each other in the upper and lower parts, that is, the longitudinal sections of the through holes 30 on the two adjacent second step surfaces 3212 are coplanar.

[0085] In addition, the air outlet area of the through hole 30 gradually decreases from bottom to top along the multiple second step surfaces 3212, because the amount and probability of sand entering the bottom layer are greater than those in the upper layer. If sand enters, the lower layer will be exposed first. This design can minimize the sand entering the upper layer.

[0086] In a preferred embodiment of the present invention, the surface area of the second step surface 3212 is a, and the gas outlet area of the through hole 30 is b, wherein 0.02≤b / a≤0.1.

[0087] Figure 1 As shown, within this range, the through hole 30 can form a good flow and prevent sand from entering the insulation cavity 100 above the insulation board.

[0088] In a preferred embodiment of the present invention, the upper housing 1 comprises:

[0089] The upper shell body 11 has a bottom portion connected between the outer wall 21 and the inner wall 22. The inner periphery of the upper shell body 11 is bent downward to form an annular upper shell flange 111. The upper shell flange 111 is sleeved on the inner periphery of the inner wall 22.

[0090] The annular plate 12 is sleeved on the outer periphery of the outer side wall 21 and connected to the outer periphery of the upper shell body 11 at the top;

[0091] The upper shell 1 is connected to the lower shell 2 through the annular plate 12 and the upper shell flange 111;

[0092] The longitudinal section of the upper housing body 11 is Z-shaped or C-shaped.

[0093] like Figure 1-2 As shown, the annular upper shell 1 can be sleeved on the top of the lower shell 2 through the annular plate 12 and the upper shell flange 111. The structure is simple, easy to quickly disassemble and assemble, and improves production efficiency.

[0094] At the same time, the longitudinal section of the upper shell body 11 is Z-shaped or C-shaped, which can effectively increase heat radiation. The lower part of the upper shell body 11 can also be used to hold liquid, making it easier for users to clean the kitchen.

[0095] In a preferred embodiment of the present invention, the upper shell 1 is connected to the support foot 4, and the lower shell 2 is connected to the base foot 5, and the base foot 5 includes a connecting block 51 and a supporting block 52: the connecting block 51 is connected to the lower shell 2 and the supporting block 52, and the supporting block 52 is provided with an installation groove, and the bottom of the connecting block 51 is inserted into the installation groove.

[0096] Figure 1-2 As shown, the base 5 includes a connecting block 51 connected to the bottom wall 23 and a supporting block 52. The supporting block 52 can be detachably connected to the connecting block 51, or an installation groove can be inserted into the bottom of the connecting block 51 and the connecting block 51 and the installation groove can be welded.

[0097] In addition, the bottom area of the support block 52 can be increased to improve the stability of the foot 5. By reducing the top area of the connecting block 51, the contact area between the connecting block 51 and the bottom wall 23 is reduced, thereby improving the quality and appearance of the pot support.

[0098] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on specific circumstances.

[0099] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0100] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0101] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible in the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pot support, characterized in that: include: Upper housing (1); A lower shell (2) is connected to the lower side of the upper shell (1), and the upper shell (1) and the lower shell (2) are enclosed to form a heat-insulating cavity (100); A heat insulation component (3) is provided in the heat insulation cavity (100) and is used to divide the heat insulation cavity (100) into at least two cavities; The lower shell (2) is provided with an exhaust hole, and the heat insulation component (3) is provided with a through hole (30) connected to each of the cavities, so that the gas in the heat insulation cavity (100) can be circulated through the exhaust hole and the through hole (30); The heat insulation area of the heat insulation component (3) is larger than the projected area of the heat insulation cavity (100) on the bottom surface of the lower shell (2); The lower housing (2) comprises: An outer side wall (21) connected to the outer periphery of the upper shell (1); An inner side wall (22) connected to the inner periphery of the upper shell (1); A bottom wall (23) is connected between the outer wall (21) and the inner wall (22), and the bottom wall (23) is provided with a plurality of exhaust holes; The outer side wall (21) comprises a vertical section (211) and an inclined section (212), wherein the inclined section (212) is connected to the vertical section (211) and the bottom wall (23); The heat insulation assembly (3) comprises at least one heat insulation board, and each heat insulation board comprises, from the outside to the inside: A first radial section (31), located above the inclined section (212) and connected to the vertical section (211) on its outer side; a second radial section (32) connected to the inner side of the first radial section (31) and located above the inclined section (212); a third radial section (33), located above the bottom wall (23), with its outer side connected to the inner side of the second radial section (32); a fourth radial segment (34) having a Z-shaped longitudinal section, located above the bottom wall (23), with its outer side connected to the inner side of the third radial segment (33), and its inner side connected to the bottom wall (23); The fourth radial section (34), the inner side wall (22), and the bottom wall (23) located between the fourth radial section (34) and the inner side wall (22) are enclosed to form a heat storage area (200); The second radial segment (32) and the third radial segment (33) are both arranged obliquely, and the second radial segment (32) is bent to form at least two steps (321).

2. The pot support according to claim 1, characterized in that: Each of the steps (321) comprises: The first step surface (3211) is arranged to be inclined downward from the outside to the inside; A second step surface (3212) is connected to the inner side of the first step surface (3211), and the second step surface (3212) is arranged to be inclined upward from the outside to the inside; The angle between the first step surface (3211) and the second step surface (3212) is an acute angle, the second step surface (3212) is provided with a plurality of through holes (30), and the plurality of through holes (30) are evenly distributed along the second step surface (3212).

3. The pot support according to claim 2, characterized in that: The through holes (30) on two adjacent second step surfaces (3212) are the same in number and correspond to each other vertically; The area of the through hole (30) on any one of the second step surfaces (3212) is smaller than the area of the through hole (30) on the adjacent outer second step surface (3212).

4. The pot support according to claim 2, characterized in that: The surface area of the second step surface (3212) is a, and the air outlet area of the through hole (30) is b, wherein 0.02≤b / a≤0.

1.

5. The pot support according to claim 1, characterized in that: The upper shell (1) comprises: An upper shell body (11), the bottom of which is connected between the outer wall (21) and the inner wall (22), the inner periphery of the upper shell body (11) is bent downward to form an annular upper shell flange (111), and the upper shell flange (111) is sleeved on the inner periphery of the inner wall (22); An annular plate (12) is sleeved on the outer periphery of the outer side wall (21), and the top is connected to the outer periphery of the upper shell body (11); The upper shell (1) is connected to the lower shell (2) via the annular plate (12) and the upper shell flange (111); The longitudinal section of the upper shell body (11) is Z-shaped or C-shaped.

6. The pot support according to claim 1, characterized in that: The upper shell (1) is connected to a support foot (4), and the lower shell (2) is connected to a base foot (5), and the base foot (5) comprises: A connecting block (51), the top of which is fixedly connected to the lower housing (2); The supporting block (52) is provided with a mounting groove, and the bottom of the connecting block (51) is inserted into the mounting groove.

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