Bottom support structure for stove and stove with bottom support structure

Abstract

The bottom support structure comprises an air guide structure arranged in the transverse direction and a supporting structure used for supporting the air guide structure to be far away from a supporting interface, the air guide structure comprises a supporting plate and an adjusting plate, a plurality of air inlet holes are formed in the supporting plate, and the adjusting plate is arranged on the supporting plate. A plurality of adjusting holes are formed in the adjusting plate, the adjusting plate can rotate between the completely-opened position and the closed position relative to the supporting plate, a notch formed below the adjusting plate is formed in the supporting structure, and the notch forms an air inlet channel capable of being communicated with the adjusting holes. According to the bottom support structure, external air can enter the position under the air guide structure through the notches in the supporting structure, then flows upwards to penetrate through the air inlet holes in the supporting plate to enter the stove with the bottom support structure for combustion supporting, influences of external environment factors such as the air direction are not likely to happen, the combustion supporting effect is better, the air volume can be adjusted, and the combustion supporting effect is better. And the requirements of different combustion fire powers are met, and the application range is wider.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fire stove, especially a bottom support structure for fire stove and a fire stove with the structure. BACKGROUND

[0002] The current market's firewood stove, such as the high-efficiency firewood stove of the announcement number CN108019780A, the furnace body is set to the structure of one body, and the side wall of the furnace body is provided with a ventilation hole communicating with the internal combustion chamber of the furnace body, which is used for guiding the external air into the combustion chamber along the horizontal direction from the side of the furnace body to help the fuel burn fully. The air inlet of the side is easy to be affected by the wind direction and other environmental factors, leading to unstable air entering the combustion chamber, thereby affecting the combustion effect. Moreover, the ventilation hole cannot adjust the air inlet amount, which is not suitable for some situations that need to adjust the fuel combustion firepower, and brings inconvenience to people. SUMMARY

[0003] The utility model discloses a bottom support structure for fire stove, which comprises a wind guide structure arranged in the transverse direction and a support structure for supporting the wind guide structure away from a support interface. The wind guide structure comprises a support plate and an adjusting plate coaxially arranged on the lower side of the support plate and capable of rotating around the axis of the support plate. A plurality of air inlet holes are arranged in the circumferential direction on the support plate. A plurality of adjusting holes corresponding to the air inlet holes are arranged in the circumferential direction on the adjusting plate. The adjusting plate can rotate relative to the support plate between a fully open position and a closed position. When the adjusting plate is in the fully open position, the adjusting holes and the air inlet holes are arranged opposite to each other and are in communication with each other. When the adjusting plate is in the closed position, the adjusting holes and the air inlet holes are arranged in a staggered manner, and the adjusting holes are blocked by the support plate, and the air inlet holes are blocked by the adjusting plate. The support structure has a gap arranged below the adjusting plate. The gap forms an air inlet channel that can communicate with the adjusting holes.

[0004] Preferably, the support structure is arranged around the wind guide structure, the outer periphery of the support plate is connected with the support structure, and the adjusting plate is rotatably connected with the support plate through a rotating shaft arranged along the axis of the support plate.

[0005] Preferably, a first connecting hole is formed on the support plate along its axis, a second connecting hole is formed on the adjusting plate along its axis, the support plate and the adjusting plate are rotatably connected through the rotating shaft extending into the first connecting hole and the second connecting hole, and the rotating shaft is connected with a first limiting piece limiting on the lower side of the adjusting plate and a second limiting piece limiting on the upper side of the support plate.

[0006] Preferably, the side of the adjusting plate is provided with an operation part arranged to extend outwardly for an operator to rotate the adjusting plate relative to the support plate, the wall of the support structure is provided with a guide channel, the operation part extends outside the support structure through the guide channel and can move along the guide channel to drive the adjusting plate to rotate relative to the support plate between the fully open position and the closed position.

[0007] Preferably, the support structure has support feet for placing on the support surface, a plurality of support feet are arranged around the outer circumferential side of the air guide structure, each support foot surrounds the mounting channel for mounting the adjusting plate, and the gaps are formed between adjacent support feet and arranged upward from the bottom of the support structure.

[0008] Preferably, the air guide structure has a middle region and a surrounding region arranged around the middle region, and a part of the corresponding arranged air inlet holes and adjusting holes are arranged on the support plate and the adjusting plate along the middle region of the air guide structure, and another part of the corresponding arranged air inlet holes and adjusting holes are arranged on the support plate and the adjusting plate along the surrounding region of the air guide structure.

[0009] Preferably, it also includes an ash tray and a first connecting structure for supporting the ash tray away from the support plate, the ash tray is arranged directly above the middle region of the air guide structure, the air inlet holes of the surrounding region of the air guide structure are arranged obliquely below the ash tray close to the edge of the support plate, and the first connecting structure is formed with a spacing region communicating the air inlet holes of the middle region of the air guide structure and the outside of the first connecting structure.

[0010] Preferably, the first connecting structure includes a plurality of supporting legs arranged between the bottom of the ash tray and the support plate in the circumferential direction, the upper end of the supporting leg is fixedly connected with the bottom of the ash tray, the lower end of the supporting leg is fixedly connected with the support plate, the spacing region is formed between adjacent supporting legs, and the outer periphery of the support plate is combined with the inner side wall of the support structure.

[0011] The utility model also provides a stove, including above-mentioned bottom support structure, and set up combustion structure on the bottom support structure, the combustion structure has inner chamber structure and outer chamber structure and combustion chamber, the combustion chamber is formed by the inner chamber structure inwardly limited.

[0012] Preferably, the combustion structure is arranged as a sleeve structure penetrating up and down, the support structure has a limiting piece, the limiting piece is arranged around the support plate and protrudes above the outer periphery of the support plate to form a mounting region around the outer periphery of the support plate and the limiting piece for movably placing the combustion structure.

[0013] The beneficial effects achieved by this utility model are as follows: Compared with the existing structural design in which air enters the furnace horizontally, the bottom support structure of this utility model, by setting a guide structure arranged horizontally and a support structure for supporting the guide structure away from the support interface, allows external air to enter directly below the guide structure through the air intake channel formed by the notch on the support structure, and then flow upward through the air intake holes on the support plate into the furnace equipped with this bottom support structure for combustion. This makes it less susceptible to the influence of external environmental factors such as wind direction, and allows for more sufficient and uniform air intake into the furnace combustion chamber, resulting in better combustion effect. In addition, the guide structure also includes an adjustment plate coaxially arranged on the lower side of the support plate and capable of rotating around the axis of the support plate, and several air intake holes are arranged circumferentially on the support plate. The air vents are arranged around the circumference of the adjustment plate, with several adjustment holes corresponding to the air inlets. The operator can rotate the adjustment plate between the fully open and closed positions relative to the support plate. In the fully open position, the adjustment holes and air inlets are opposite to each other and interconnected, maximizing the airflow into the combustion structure. In the closed position, the adjustment holes and air inlets are staggered, with the adjustment holes blocked by the support plate and the air inlets blocked by the adjustment plate. In this position, air cannot enter the combustion structure through the air inlets. The operator can adjust the area of ​​the interconnection between the adjustment holes and air inlets by rotating the adjustment plate relative to the support plate between the fully open and closed positions, thereby adjusting the airflow. This design caters to different combustion heat requirements, making it more widely applicable.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the base structure according to an embodiment of the present invention.

[0017] Figure 2 This is an exploded view of the base structure according to an embodiment of the present invention. Figure 1 .

[0018] Figure 3 This is a cross-sectional view of the base structure according to an embodiment of the present invention.

[0019] Figure 4 This is an exploded view of the base structure according to an embodiment of the present invention. Figure 2 .

[0020] Figure 5 Figure 2 is a sectional view of the fire stove according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0022] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include the first and second features in direct contact, or the first and second features not in direct contact but in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0025] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0026] like Figures 1-4 As shown in the figure, as an embodiment of this utility model, a base structure for a stove is provided, including a transversely arranged air guide structure 3 and a support structure 2 for supporting the air guide structure 3 away from the ground, gravel surface, grass surface, floor surface, etc. The air guide structure 3 includes a support plate 31, on which a plurality of air inlets 311 are provided in a circumferential direction. The support structure 2 has a notch arranged below the adjustment plate 32, which forms an air inlet channel 20 that can communicate with the adjustment holes 321. Compared to the existing structural design where air enters the furnace horizontally, the bottom support structure of this embodiment, by setting a horizontally arranged air guide structure 3 and a support structure 2 for supporting the air guide structure 3 away from the support interface, allows external air to enter directly below the air guide structure 3 through the air intake channel 20 formed by the notch on the support structure 2, and then flow upward through the air intake hole 311 on the support plate 31 to enter the furnace equipped with the bottom support structure for combustion. It is less affected by external environmental factors such as wind direction, and can make the air drawn into the furnace combustion chamber more sufficient and uniform, resulting in a better combustion effect. In addition, the air guide structure 3 also includes an adjustment plate 32 coaxially arranged on the lower side of the support plate 31 and capable of rotating around the axis of the support plate 31. Several adjustment holes 321 corresponding to the air inlet holes 311 are arranged through the adjustment plate 32 along the circumferential direction. The adjustment plate 32 can rotate relative to the support plate 31 between a fully open position and a closed position. When fully open, the adjustment holes 321 and the air inlet holes 311 are arranged opposite to each other and are interconnected. At this time, the air volume entering the combustion structure is the largest. When closed, the adjustment holes 321 and the air inlet holes 311 are staggered and the adjustment holes 321 are blocked by the support plate 31, and the air inlet holes 311 are blocked by the adjustment plate 32. At this time, air cannot enter the combustion structure through the air inlet holes. The operator can adjust the area of ​​the interconnection between the adjustment holes and the air inlet holes by rotating the adjustment plate relative to the support plate between the fully open position and the closed position, thereby adjusting the air volume. It can meet the needs of different combustion firepower and has a wider range of applications.

[0027] like Figure 3As shown, in some embodiments, the support structure 2 is arranged around the air guide structure 3, and the outer periphery of the support plate 31 is connected with the support structure 2. In this embodiment, the outer periphery of the support plate 31 is combined with the inner side wall of the support structure 2, which can be welded or integrally formed, so that the support plate 31 is fixedly connected with the inner wall of the support structure 2 as a whole structure, facilitating the movement of the bottom support structure. In other embodiments, the support plate 31 and the support structure 2 can also be detachably connected through screws, buckles or other structures. The adjusting plate 32 is rotatably connected with the support plate 31 through the rotating shaft 8 arranged along the axis of the support plate 31, so that the adjusting plate 32 is rotatably connected with the support plate 31 through the rotating shaft 8. The structure is simple and practical, and the adjusting plate 32 can be easily rotated relative to the support plate 31 to adjust the air volume. In other embodiments, the adjusting plate 32 can also be rotatably connected with the support structure 2 through a support table or other structure, and the adjusting plate 32 can also be rotated relative to the support plate 31.

[0028] As shown in Figure 4 some embodiments, a first connecting hole 312 is formed in the support plate 31 along its axis, and a second connecting hole 322 is formed in the adjusting plate 32 along its axis. The rotating shaft 8 extends into the first connecting hole 312 and the second connecting hole 322 to rotatably connect the support plate 31 and the adjusting plate 32. The rotating shaft 8 is connected with a first limiting member 81 limiting the lower side of the adjusting plate 32 and a second limiting member 82 limiting the upper side of the support plate 31, so that the support plate 31 and the adjusting plate 32 are limited in the axial direction between the first limiting member 81 and the second limiting member 82, preventing the adjusting plate 32 from falling off relative to the support plate 31. In this embodiment, the rotating shaft 8 is formed by the connecting shaft part of the bolt, the first limiting member 81 is formed by the bolt head, and the second limiting member 82 is formed by the nut matched with the bolt. The structure is simple and practical, and facilitates the assembly or disassembly of the adjusting plate 32. In other embodiments, the second limiting member 82 can be formed by the bolt head, the first limiting member 81 can be formed by the nut, or the rotating shaft 8 can be formed by the connecting shaft part of the rivet, and the first limiting member 81 and the second limiting member 82 can be formed by the two end covers of the rivet, so that the adjusting plate 32 is arranged to be non-detachably connected with the support plate 31.

[0029] As shown in Figure 1 some embodiments, the side of the adjusting plate 32 is provided with an operating portion 323 extending outwardly for an operator to rotate the adjusting plate 32 relative to the support plate 31. The wall of the support structure 2 is provided with a guide channel 22, and the operating portion 323 extends out of the support structure 2 through the guide channel 22 and can move along the guide channel 22 to drive the adjusting plate 32 to rotate relative to the support plate 31 between the fully open position and the closed position, facilitating the operator to rotate the adjusting plate 32 relative to the support plate 31 to adjust the air volume.

[0030] As Figure 3 shown, in some embodiments, the support structure 2 has support feet 21 for placing on the support interface, a plurality of support feet 21 are arranged at intervals around the outer peripheral side of the air guide structure 3, each support foot 21 surrounds a mounting channel for mounting the adjustment plate 32, the adjustment plate 32 can be inserted into the lower side of the support plate 31 along the mounting channel and rotatably connected with the support plate 31, or disassembled relative to the support plate 31 and moved out of the support structure 2 along the mounting channel, the support plate 31 and the adjustment plate 32 are respectively provided as disc structures, which are simple and practical in structure, and in other embodiments, the support plate 31 and the adjustment plate 32 can also be respectively provided as square disc structures or other shapes. In this embodiment, the gap between adjacent support feet 21 is arranged upward from the bottom of the support structure 2, so that external air can directly enter the directly below the adjustment plate 32 along the gap between adjacent support feet 21.

[0031] As Figure 4 shown, in some embodiments, the air guide structure 3 has a middle region and a surrounding region arranged around the middle region, wherein a part of the air inlet holes 311 and the adjustment holes 321 arranged correspondingly are respectively arranged on the support plate 31 and the adjustment plate 32 along the middle region of the air guide structure 3, and another part of the air inlet holes 311 and the adjustment holes 321 arranged correspondingly are respectively arranged on the support plate 31 and the adjustment plate 32 along the surrounding region of the air guide structure 3, which can respectively guide the air directly below the adjustment plate 32 from the middle region and the surrounding region of the air guide structure 3 to the upper side of the support plate 31, and can guide more air from the air guide structure 3 into the combustion chamber of the stove, thereby improving the combustion efficiency.

[0032] As Figure 3 shown, in some embodiments, the bottom support structure further includes an ash tray 4 and a first connecting structure 6 for supporting the ash tray 4 away from the support plate 31, the ash tray 4 is arranged directly above the middle region of the air guide structure 3, the air inlet holes 311 of the surrounding region of the air guide structure 3 are arranged obliquely below the ash tray 4 near the edge of the support plate 31, and the first connecting structure 6 has a spacing region outside the first connecting structure 6 communicating with the air inlet holes 311 of the middle region of the air guide structure 3. The air inlet holes 311 located in the middle region can guide the air directly below the middle region of the air guide structure 3 to the upper side of the support plate 31, and diffuse outwardly along the middle of the upper side of the support plate 31 and the bottom wall of the ash tray 4, and guide the air upward along the side wall of the ash tray 4 toward the combustion chamber of the stove, and the air inlet holes 311 located in the surrounding region can guide the air directly below the surrounding region of the air guide structure 3 to the upper side of the support plate 31, and guide the air upward along the side wall of the ash tray 4 toward the combustion chamber of the stove. When the cold air entering from the outside flows along the ash tray 4, it can also exchange heat with the ash tray 4, so that the cold air can be gradually converted into hot air that is more conducive to combustion, and the structures can also be cooled to avoid scalding the operator.

[0033] like Figure 4 As shown, in some specific embodiments, the first connecting structure 6 includes a plurality of feet 61 arranged circumferentially between the bottom of the ash pan 4 and the support plate 31. The upper end of the feet 61 is fixedly connected to the bottom of the ash pan 4, and the lower end of the feet 61 is fixedly connected to the support plate 31. The interval area is formed between adjacent feet 61, so that the air introduced into the upper side of the support plate 31 by the air inlet 311 in the middle area can directly diffuse laterally outward along the upper side of the support plate 31 and the middle of the bottom wall of the ash pan 4 through the interval area between adjacent feet 61. The interval area is large, which is conducive to the rapid outward lateral diffusion of air. In other embodiments, the first connecting structure 6 can also be set as a perforated ring plate structure or other structures, and the perforation can also serve as an interval area for the outward diffusion of air.

[0034] like Figure 3As shown, in some embodiments, the ash tray 4 comprises a tray bottom plate 41, a tray side plate 42 extending upward from the periphery of the tray bottom plate 41, and a tray edge structure 43 formed by outwardly flanging the top of the tray side plate 42. The support structure 2 further comprises a grate 5 movably placed on the tray edge structure 43, and the grate 5 is used to place fuel for combustion in the combustion chamber. The tray bottom plate 41 is arranged above the support plate 31 in a spaced manner, and a first connecting structure 6 is connected between the tray bottom plate 41 and the support plate 31. The outer end surface of the tray bottom plate 41 comprises a horizontal guide surface 411 arranged in a horizontal direction, and an inclined guide surface 412 arranged around the outer periphery of the bearing surface 411. The horizontal guide surface 411 can guide air entering the upper side of the support plate 31 through the intermediate area air inlet hole 311 to diffuse outward along the horizontal direction, and the inclined guide surface 412 is arranged in a tapered structure, and the radius of the upper end of the inclined guide surface 412 is greater than that of the lower end, which can guide the air diffused outward along the horizontal direction to flow upward at an inclined angle, so that the pressure gradually increases during the upward flow of the air. The tray side plate 42 is provided with a plurality of ventilation holes 421 along the side wall thereof, and the grate 5 is provided with a plurality of air outlet holes 51, and air can enter the stove combustion chamber in sequence through the ventilation holes 421 and the air outlet holes 51 for combustion support. The grate 5 is further provided with an ash discharge hole 52 for guiding the ash after combustion of the fuel into the ash tray 4, and the air outlet hole 51 and the ash discharge hole 52 can be arranged as the same hole, or can be arranged as different holes. The tray side plate 42 is arranged in a tapered structure, and the radius of the upper end of the tray side plate 42 is greater than that of the lower end, so as to continue to gradually increase the pressure during the upward flow of the air. The tray edge structure 43 comprises a first support edge 431 formed by outwardly flanging the top of the tray side plate 42, and a first limiting edge 432 formed by upwardly flanging the outer end of the first support edge 431. The grate 5 is placed on the upper side of the first support edge 431 and is limited by the first limiting edge 432 to move radially relative to the ash tray 4, and the operator can directly move the grate 5 upward out of the ash tray 4 and then pour the ash in the ash tray 4. The support structure 2 is formed with a gripping structure for the operator to pour the ash in the ash tray 4, which can be formed by the support leg 21 or by the part of the support structure 2 above the notch, so that the operator can pour the ash by holding the gripping structure of the support structure 2, which is simple to operate and convenient to use, and can avoid the operator from directly contacting the ash tray 4 during use, thereby preventing being scalded or the hands or clothes from being stained by the ash, and has very strong practicality. In other embodiments, a handle specially for the operator to hold can also be arranged on the support structure 2 to improve the comfort of the operator to hold.

[0035] As Figure 5As shown, as another embodiment of the utility model, still provide a kind of stove, including above bottom support structure, and the combustion structure 1 of being arranged on the bottom support structure, combustion structure 1 has inner cavity structure 11 and outer cavity structure 12 and combustion chamber, combustion chamber is formed by inner cavity structure 11 inwardly defined, the upper portion of ash tray 4 is located in combustion chamber, external air can enter the air guide structure 3 directly below by the air inlet channel 20 formed by the gap on support structure 2, then flow upwards through the adjusting hole 321 on adjusting plate 32 and the air inlet hole 311 on support plate 31 into combustion chamber to assist combustion, more not susceptible to wind direction and other external environmental factors, can make the air inhaled in the combustion chamber of stove more sufficient and uniform, and the effect of combustion-supporting is better.

[0036] In some specific embodiments, combustion structure 1 is provided as sleeve structure that penetrates up and down, support structure 2 has limiting piece 23, limiting piece 23 is arranged around support plate 31 and protrudes from the upper side of the outer periphery of support plate 31, to form installation area that combustion structure 1 can be placed movably around between the outer periphery of support plate 31 and limiting piece 23, after being placed, the combustion structure 1 and limiting piece 23 are mutually sleeved, which can prevent combustion structure 1 from moving horizontally relative to the bottom support structure when being placed in the installation area, improve the stability of combustion structure 1 being placed, the upper portion of ash tray 4 and grate 5 are located in the combustion chamber, and the combustion structure 1 as a whole can be lifted upwards from the installation area to move out of the bottom support structure, so that the ash tray 4 in the combustion chamber is directly exposed to the outside world, and since the ash tray 4 is connected to the upper portion of support plate 31 through the first connecting structure 6, the operator can pour ash by holding support structure 3, which is simple to operate and convenient to use, and can avoid the operator from directly contacting the side wall of the combustion chamber or the ash tray 4 during use, thereby preventing being scalded or having hands or clothes stained by ash, and after the combustion structure 1 is moved out, the ash left on support plate 31 below the ash tray 4 can be cleaned more conveniently, which has very strong practicality. The outer peripheral side of ash tray 4 and limiting piece 23 form a removal channel for combustion structure 1 to be lifted upwards from the installation area to move out of the bottom support structure. The height of the top of limiting piece 23 is lower than the height of the top of ash tray 4, so that the operator can put hands into the upper side of support plate 31 along the removal channel, thereby cleaning the ash left on support plate 31 below ash tray 4 more conveniently.

[0037] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

[0038] In summary, the above only for the preferred embodiments of the present application, any changes and modifications made in accordance with the present application patent scope, should be the scope of the present application patent cover.

Claims

1. A base support structure for a fire, characterised in that, Comprise: The air guide structure arranged in the transverse direction, including a support plate and a adjusting plate coaxially arranged on the lower side of the support plate and can rotate around the axis of the support plate, a plurality of air inlet holes are arranged on the support plate in the circumferential direction, a plurality of adjusting holes corresponding to the air inlet holes are arranged on the adjusting plate in the circumferential direction, the adjusting plate can rotate relative to the support plate between the fully open position and the closed position, in the fully open position, the adjusting hole is arranged opposite to the air inlet hole and communicates with each other; in the closed position, the adjusting hole and the air inlet hole are arranged in the opposite position, and the adjusting hole is blocked by the support plate, and the air inlet hole is blocked by the adjusting plate; The support structure for supporting the air guide structure away from the support interface, the support structure has a gap arranged below the adjusting plate, the gap forms an air inlet channel that can communicate with the adjusting hole.

2. The frame structure of claim 1, wherein: The support structure is arranged around the air guide structure, the outer periphery of the support plate is connected with the support structure, and the adjusting plate is rotatably connected with the support plate through the rotating shaft arranged along the axis of the support plate.

3. The frame structure of claim 2, wherein: The first connecting hole is arranged on the support plate along the axis thereof, the second connecting hole is arranged on the adjusting plate along the axis thereof, the rotating shaft is rotatably connected between the support plate and the adjusting plate by extending into the first connecting hole and the second connecting hole, and the rotating shaft is connected with the first limiting piece limited below the adjusting plate and the second limiting piece limited above the support plate.

4. The frame structure of claim 2, wherein: The side of the adjusting plate is provided with an operation part arranged to extend outward for an operator to rotate the adjusting plate relative to the support plate, and the wall part of the support structure is provided with a guide channel, the operation part extends out of the support structure through the guide channel, and can move along the guide channel to drive the adjusting plate to rotate relative to the support plate between the fully open position and the closed position.

5. The frame structure of claim 1, wherein: The support structure has a support leg for placing on the support interface, a plurality of support legs are arranged at intervals around the outer periphery of the air guide structure, each support leg forms a mounting channel for mounting the adjusting plate, and the gap is formed between adjacent support legs and arranged upward from the bottom of the support structure.

6. The frame structure according to any one of claims 1-5, wherein: The air guide structure has a middle region and a surrounding region arranged around the middle region, and a part of the corresponding arranged air inlet holes and adjusting holes are arranged on the support plate and the adjusting plate along the middle region of the air guide structure, and another part of the corresponding arranged air inlet holes and adjusting holes are arranged on the support plate and the adjusting plate along the surrounding region of the air guide structure.

7. The frame structure of claim 6, wherein: It also includes an ash tray and a first connecting structure for supporting the ash tray away from the support plate, the ash tray is arranged directly above the middle region of the air guide structure, the air inlet holes of the surrounding region of the air guide structure are arranged near the edge of the support plate and are arranged obliquely below the ash tray, and the first connecting structure forms a spacing region outside the first connecting structure which communicates with the air inlet holes of the middle region of the air guide structure.

8. The frame structure of claim 7, wherein: The first connecting structure includes a plurality of supporting legs arranged between the bottom of the ash tray and the support plate in the circumferential direction, the upper end of the supporting leg is fixedly connected with the bottom of the ash tray, the lower end of the supporting leg is fixedly connected with the support plate, the spacing region is formed between adjacent supporting legs, and the outer periphery of the support plate is combined with the inner wall of the support structure.

9. A fire, characterised in that: The base structure as claimed in any one of claims 1-8, and a combustion structure arranged on the base structure, the combustion structure having an inner cavity structure and an outer cavity structure and a combustion chamber defined inwardly by the inner cavity structure.

10. The fire as claimed in claim 9 wherein: The combustion structure is arranged as a sleeve structure extending through up and down, and the support structure has a limiting member arranged around the support plate and protruding outwardly from an upper side of the outer periphery of the support plate to form an installation area around the support plate and the limiting member, in which the combustion structure can be movably placed.

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