Furnace convenient for cleaning ash

Abstract

The utility model discloses a stove convenient for cleaning stove ash, which comprises a bottom support structure placed on a supporting interface and a combustion structure movably placed on the bottom support structure, the bottom support structure comprises a supporting plate, a supporting structure used for supporting the supporting plate to be away from a supporting interface and a stove ash tray connected with the upper portion of the supporting plate through a first connecting structure, and the supporting structure is provided with a limiting piece which is arranged in the circumferential direction and protrudes out of the upper side of the supporting plate. The supporting plate and the limiting piece surround to form an installation area for containing the combustion structure, the combustion structure and the limiting piece are connected in a sleeved mode after being placed, the upper portion of the stove ash tray is located in the combustion chamber, and the combustion structure can be lifted upwards from the installation area so as to be moved out of the bottom support structure. According to the stove, the whole combustion structure can be lifted upwards and moved out of the bottom support structure, the stove ash tray in the combustion chamber is directly exposed to the outside, stove ash in the stove ash tray is conveniently cleaned, and the practicability is very high.

Description

Technical Field

[0001] This utility model relates to the field of stoves, and in particular to a stove that is easy to clean ash from. Background Technology

[0002] Existing stoves, such as the utility model patent with announcement number CN216953141U, have a furnace body side shell and a furnace body bottom shell as an integrated structure. The ash tray is placed on the furnace body bottom shell inside the furnace body. When pouring the ash in the ash tray, the operator needs to reach into the combustion chamber, hold the ash tray, and lift it upwards to the outside of the furnace body. Then, the operator can pour the ash by holding the ash tray. During the operation, the operator is easily burned by the ash tray or the side wall of the combustion chamber, or their hands or clothes are soiled by the ash. It is very inconvenient to use. Summary of the Invention

[0003] This utility model addresses the shortcomings of existing technologies by providing a stove that facilitates ash cleaning. It includes a base structure for placement on a support interface and a movable combustion structure placed on the base structure. The combustion structure is a through-sleeve structure with an inner cavity, an outer cavity, and a combustion chamber, the combustion chamber being defined inwardly by the inner cavity. The base structure includes a support plate, a support structure for supporting the support plate away from the support interface, and an ash tray connected to the upper part of the support plate via a first connecting structure. The support structure has a limiting member arranged circumferentially and protruding from the upper part of the support plate. The support plate and the limiting member surround and form an installation area for placing the combustion structure. After placement, the combustion structure and the limiting member are nested together. The upper part of the ash tray is located within the combustion chamber, and the combustion structure can be lifted upward from the installation area to be removed from the base structure.

[0004] Preferably, the limiting member is arranged around the outer periphery of the support plate, and the installation area is formed by the outer periphery of the support plate and the inner wall of the limiting member. The outer cavity structure includes an outer cavity body and a positioning member connected to the lower end of the outer cavity body. When the combustion structure is placed in the installation area, the positioning member is sleeved in the limiting member and supported on the upper side of the support plate. The outer periphery of the ash pan and the limiting member form a removal channel for the combustion structure to be lifted upward from the installation area to move out of the base support structure.

[0005] Preferably, the positioning element includes a positioning ring plate extending downward from the lower end of the outer cavity body and a support ring formed by turning inward from the lower end of the positioning ring plate. When the combustion structure is placed on the base structure, the positioning ring plate is sleeved inside the limiting element, and the support ring is supported on the upper side of the support plate.

[0006] Preferably, the support plate includes a support plate body and a connecting edge formed by turning the outer periphery of the support plate body downward, wherein the outer wall of the connecting edge is combined with the inner wall of the support structure.

[0007] Preferably, the support structure has a gripping structure for the operator to pour ash from the ash pan.

[0008] Preferably, the support structure further has support feet for placement on the support interface, and a notch is formed between adjacent support feet that extends upward from the bottom of the support structure. The gripping structure is formed by the support feet, or the gripping structure is formed by a portion of the support structure above the notch.

[0009] Preferably, it further includes a first flow path group for allowing external air to enter the combustion chamber for combustion, a second flow path group with its air outlet located above the air outlet of the first flow path group, and a third flow path group with its air outlet located above the air outlet of the second flow path group. An air inlet hole is provided through the support plate. A grate is movably placed on the upper part of the ash pan. The air outlet of the first flow path group is arranged on the grate. The air outlet of the second flow path group is arranged around the middle of the combustion chamber on the inner cavity structure. The air outlet of the third flow path group is arranged around the upper part of the combustion chamber on the inner cavity structure.

[0010] Preferably, the ash pan is provided with a plurality of ventilation holes along its side wall, and the grate is provided with a plurality of air outlet holes. The ventilation holes are arranged on the first flow path group, and the air outlet holes form the air outlet of the first flow path group.

[0011] Preferably, the inner cavity structure includes a lower inner cavity, a middle inner cavity, an upper inner cavity, a lower support platform formed by flanging outward from the bottom of the lower inner cavity, and an upper support platform formed by flanging outward from the top of the upper inner cavity; the lower support platforms are spaced above the support plate, and the outer end of the lower support platforms is combined with the inner wall of the outer cavity structure, and a plurality of ventilation holes are provided through the lower support platforms; the outer end of the upper support platforms is combined with the outer cavity structure; the circumferential dimension of the upper inner cavity is larger than that of the lower inner cavity; the lower end of the middle inner cavity is combined with the lower inner cavity, and the upper end is combined with the upper inner cavity to form a wedge-shaped structure with a smaller bottom and a larger top; a plurality of air outlet holes are provided through the middle inner cavity, and the air outlet holes form the air outlet of the second flow path group; a plurality of air outlet holes are provided through the upper inner cavity, and the air outlet holes form the air outlet of the third flow path group.

[0012] Preferably, the base structure further includes an adjusting plate coaxially arranged on the lower side of the support plate. The adjusting plate is rotatably connected to the support plate via a rotating shaft arranged along the axis of the support plate. A plurality of air inlets are arranged circumferentially, and a plurality of adjusting holes corresponding to the air inlets are provided through the adjusting plate circumferentially. The adjusting plate can rotate relative to the support plate between a fully open position and a closed position. In the fully open position, the adjusting holes and air inlets are arranged opposite to each other and are interconnected. In the closed position, the adjusting holes and air inlets are staggered, and the adjusting holes are blocked by the support plate, while the air inlets are blocked by the adjusting plate. The support structure also has support feet for placement on the support interface, and a notch is formed between adjacent support feet, which is set upward from the bottom of the support structure. The notch is arranged below the adjustment plate to form an air inlet channel that can communicate with the adjustment hole. The first flow path group, the second flow path group and the third flow path group respectively include a first path that enters from the air inlet channel and passes through the adjustment hole and the air inlet hole, and a second path that is formed from the top of the support plate upward and along the area enclosed between the inner wall of the outer cavity structure and the outer wall of the ash pan. The width of the second path gradually decreases from bottom to top.

[0013] The beneficial effects achieved by this utility model are as follows: The stove provided by this utility model has an installation area for placing the combustion structure formed by the support plate and the limiting member on the base structure. This allows the combustion structure to be movably placed on the base structure, and the combustion structure and the limiting member are interlocked, thereby preventing the combustion structure from moving laterally relative to the base structure when placed in the installation area, thus improving the stability of the combustion structure placement. At the same time, the combustion structure as a whole can be lifted and moved out from the base structure, so that the ash tray in the combustion chamber is directly exposed to the outside. Since the ash tray is connected to the upper part of the support plate through the first connecting structure, the operator can pour out the ash by holding the support plate, the support structure and other structures other than the ash tray. The operation is simple and convenient, and it can avoid the operator directly contacting the side wall of the combustion chamber or the ash tray during use, thereby preventing burns or getting hands or clothes dirty with ash. After the combustion structure is removed, it is easier to clean the ash left on the support plate below the ash tray. It is very practical.

[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 structure of a stove according to an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional structural schematic diagram of a stove according to an embodiment of the present invention.

[0018] Figure 3 This is an exploded structural diagram of the base structure according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the combustion structure according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the base structure according to an embodiment of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than 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 Figure 1-5As shown in the figure, as an embodiment of the present invention, a stove that facilitates the cleaning of ash is provided, including a base structure for placement on a support interface such as the ground, gravel surface, grass surface, or floor surface, and a combustion structure 1 that can be movably placed on the base structure. The combustion structure 1 is configured as a sleeve structure that extends vertically, having an inner cavity structure 11, an outer cavity structure 12, and a combustion chamber, which is defined inwardly by the inner cavity structure 11. The base structure includes a support plate 31, a support structure 2 for supporting the support plate 31 away from the support interface, and an ash tray 4 connected to the upper part of the support plate 31 through a first connecting structure 6. The support structure 2 has a limiting member 23 arranged in a circumferential direction. The support plate 31 and the limiting member 23 surround each other to form an installation area for placing the combustion structure 1. After placement, the combustion structure 1 and the limiting member 23 are nested together. The upper part of the ash tray 4 is located in the combustion chamber, and the combustion structure 1 can be lifted upward from the installation area to be removed from the base structure. In this embodiment of the stove, the support plate 31 and the limiting member 23 on the base structure form an installation area for placing the combustion structure 1, allowing the combustion structure 1 to be movably placed on the base structure. The combustion structure 1 and the limiting member 23 are interlocked, which prevents the combustion structure 1 from moving laterally relative to the base structure when placed in the installation area, thus improving the stability of the combustion structure 1. At the same time, the combustion structure 1 can be lifted and moved out of the base structure, so that the ash tray 4 in the combustion chamber is directly exposed to the outside. Since the ash tray 4 is connected to the upper part of the support plate 31 through the first connecting structure 6, the operator can pour out the ash by holding the support plate 31, the support structure 2, and other structures other than the ash tray 4. The operation is simple and convenient, and it can avoid the operator directly contacting the side wall of the combustion chamber or the ash tray 4 during use, thus preventing burns or getting hands or clothes dirty with ash. After the combustion structure 1 is removed, it is easier to clean the ash left on the support plate 31 below the ash tray 4. It is very practical.

[0027] like Figure 1As shown, in some specific embodiments, the limiting member 23 is arranged around the outer periphery of the support plate 31, and the installation area is formed by the outer periphery of the support plate 31 and the inner wall of the limiting member 23. The outer cavity structure 12 includes an outer cavity body 120 and a positioning member connected to the lower end of the outer cavity body 120. When the combustion structure 1 is placed on the base structure, the positioning member is sleeved in the limiting member 23 and supported on the upper side of the support plate 31. Thus, the positioning member is restricted from lateral movement relative to the limiting member 23 by the limiting member 23, thereby restricting the lateral movement of the combustion structure 1 as a whole. The support plate 31 supports the positioning member to support the combustion structure 1 as a whole, so that the combustion structure 1 is stably placed on the base structure through the cooperation of the positioning member, the limiting member 23 and the support plate 31. An exit channel is formed between the outer periphery of the ash pan 4 and the limiting member 23 for the combustion structure 1 to be lifted upward from the installation area and removed from the base structure. The height of the top of the limiting member 23 is lower than the height of the top of the ash pan 4, allowing the operator to reach their hand along the removal channel into the upper side of the support plate 31, making it easier to clean the ash left on the support plate 31 below the ash pan 4.

[0028] like Figure 3 As shown, in some specific embodiments, the positioning element includes a positioning ring plate 122 extending downward from the lower end of the outer cavity body 120, and a support ring 121 formed by turning inward from the lower end of the positioning ring plate 122. When the combustion structure 1 is placed on the base structure, the positioning ring plate 122 is sleeved in the limiting element 23, and the support ring 121 is supported on the upper side of the support plate 31. The setting of the support ring 121 increases the contact area between the positioning element and the support plate 31, and improves the stability of the combustion structure 1. In this embodiment, the positioning ring plate 122 is configured as a straight cylindrical structure, that is, the cross-sectional width of the upper end of the positioning ring plate 122 is the same as the cross-sectional width of the lower end. The limiting member 23 is configured as a straight cylindrical structure corresponding to the positioning ring plate 122. This can ensure that the positioning member can be lifted upward to move out of the installation area, while stably limiting the lateral movement of the positioning member and the combustion structure 1 relative to the base structure. In other embodiments, the positioning ring plate 122 can also be configured as a tapered structure with an upper cross-sectional width greater than the lower cross-sectional width. In this case, setting the limiting member 23 as a tapered structure corresponding to the positioning ring plate 122 can also ensure that the positioning member can be lifted and limit the lateral movement of the positioning member.

[0029] like Figure 5 As shown, in some specific embodiments, the support plate 31 includes a support plate body 310 and a connecting edge 313 formed by turning downward from the outer periphery of the support plate body 310. The outer wall of the connecting edge 313 is combined with the inner wall of the support structure 2. This combination can be welding or integral molding. The setting of the connecting edge 313 increases the contact area between the support plate 31 and the inner wall of the support structure 2, thereby improving the stability of the connection between the support plate 31 and the support structure 2.

[0030] In some specific embodiments, the support structure 2 is formed with a gripping structure for the operator to pour ash from the ash pan 4. This allows the operator to easily pour the ash by gripping the support structure 2, making the operation simple and convenient. It also prevents the operator from directly contacting the combustion chamber sidewall or the ash pan 4 during use, thus preventing burns or soiling of hands or clothing with ash, making it highly practical. In other embodiments, this gripping structure can also be located on the support plate 31 or other structures other than the ash pan 4.

[0031] like Figure 1 As shown, in some specific embodiments, the support structure 2 also has support feet 21 for placement on the support interface. A notch is formed between adjacent support feet 21, extending upwards from the bottom of the support structure 2. This gripping structure is formed by the support feet 21, or by a portion of the support structure 2 above the notch. The operator can pour ash from the ash pan 4 by directly gripping the support feet 21 or the portion of the support structure 2 above the notch. In other embodiments, a handle specifically for the operator to grip can also be provided on the support structure 2 to improve the operator's gripping comfort.

[0032] like Figure 2As shown, in some specific embodiments, it also includes a first guide path group 100 for allowing external air to enter the combustion chamber for combustion support, a second guide path group 200 with its air outlet located above the air outlet of the first guide path group 100, and a third guide path group 300 with its air outlet located above the air outlet of the second guide path group 200. This allows external air to enter the combustion chamber from the first guide path group 100, the second guide path group 200, and the third guide path group 300 respectively, under the negative pressure generated after the fuel burns in the combustion chamber, and mix with the fuel to aid combustion. Specifically, the fuel and the air introduced into the combustion chamber by the first guide path group 100... The air and fuel are mixed for primary combustion. During primary combustion, a large amount of fuel debris and combustibles such as carbon monoxide produced are pushed upward by the combustion airflow and mixed with the air introduced into the combustion chamber by the second guide path group 200 for secondary combustion. Meanwhile, a small amount of fuel debris and combustibles such as carbon monoxide that are missed during primary combustion continue to rise under the push of the combustion airflow and mix with the air introduced into the combustion chamber by the third guide path group 300 for tertiary combustion. This achieves secondary and tertiary combustion, enabling the fuel to burn more completely and thoroughly, thereby improving the combustion power and efficiency of the fuel and greatly reducing the emission of harmful flue gas. An air inlet 311 is provided through the support plate 31. A grate 5 is movably placed on the upper part of the ash pan 4. The air outlet of the first flow path group 100 is arranged on the grate 5. The air outlet of the second flow path group 200 is arranged around the middle of the combustion chamber on the inner cavity structure 11. The air outlet of the third flow path group 300 is arranged around the upper part of the combustion chamber on the inner cavity structure 11. This allows external air to enter the combustion structure 1 through the air inlet 311 and then enter the combustion chamber through the air outlet of the first flow path group 100 arranged on the grate 5, the air outlet of the second flow path group 200 arranged around the middle of the combustion chamber on the inner cavity structure 11, and the air outlet of the third flow path group 300 arranged around the upper part of the combustion chamber on the inner cavity structure 11 for combustion support, thus achieving primary combustion support, secondary combustion support, and tertiary combustion support. The air outlets of the second flow path group 200 are arranged around the center of the combustion chamber, and the air outlets of the third flow path group 300 are arranged around the upper part of the combustion chamber. This allows the air drawn into the combustion chamber through the air outlets of the second and third flow path groups 200 to create a swirling effect, thereby improving the mixing effect of air with fuel, fuel debris, carbon monoxide, and other combustibles, enabling more complete combustion. The support plate 31 is located directly below the combustion chamber, and external air can enter the combustion structure 1 through the air inlet 311 on the support plate 31. Compared with the prior art where the air inlet is directly set on the side wall of the furnace body, this invention is less affected by external environmental factors such as wind direction, resulting in more sufficient and uniform air drawn into the combustion structure 1, and better combustion assistance.Furthermore, the grate 5 can be movably placed on the ash pan 4, allowing the grate 5 to be separated from the combustion structure 1, thus making it easier to clean the air outlet of the first guide path group 100 and the lower end of the inner wall of the inner cavity structure 11 separately.

[0033] like Figure 2 As shown, in some specific embodiments, the ash pan 4 has several ventilation holes 421 along its side wall, and the grate 5 has several air outlet holes 51. The ventilation holes 421 are arranged on the first flow path group 100, and the air outlet holes 51 form the air outlets of the first flow path group 100. The first flow path group 100 guides air into the combustion chamber for combustion through the ventilation holes 421 on the side wall of the ash pan 4 and the air outlet holes 51 on the grate 5. Compared with the prior art, where air enters the combustion structure through the air inlet on the side wall of the furnace shell, then needs to flow along the horizontal gap between the bottom wall of the furnace body and the support tray and the air inlet in the middle of the support tray into the support tray, and then flow along the horizontal gap between the support tray and the bottom wall of the ash pan, and the horizontal gap between the side wall of the ash pan and the grate, and finally pass through the grate into the combustion chamber, the air in this invention always flows upward during this part of the flow guidance process, with less air flow resistance, which is more conducive to guiding enough air into the combustion chamber for combustion.

[0034] In some specific embodiments, the grate 5 is also provided with an ash leakage hole 52 for guiding the ash after fuel combustion into the ash pan 4. The air outlet 51 and the ash leakage hole 52 can be set as the same hole or as different holes.

[0035] like Figure 2 As shown, in some specific embodiments, the inner cavity structure 11 includes a lower inner cavity portion 111, a middle inner cavity portion 112, an upper inner cavity portion 113, a lower support platform 114 formed by flanging outward from the bottom of the lower inner cavity portion 111, and an upper support platform 115 formed by flanging outward from the top of the upper inner cavity portion 113. The lower support platform 114 is spaced above the support plate 31, and the outer end of the lower support platform 114 is combined with the inner wall of the outer cavity structure 12. The outer end of the upper support platform 115 is combined with the outer cavity structure 12, thereby forming a heat-insulating cavity between the inner cavity structure 11 and the outer cavity structure 12, preventing the heat from the combustion chamber from being transferred to the outer cavity structure 12 and burning the operator. This combination can be welding or integral molding. A plurality of ventilation holes 1141 are provided through the lower support platform 114 for allowing air to enter the heat-insulating cavity.

[0036] In some specific embodiments, the circumferential dimension of the upper inner cavity 113 is larger than that of the lower inner cavity 111; that is, the radius of the upper inner cavity 113 is larger than that of the lower inner cavity 111. The lower end of the middle inner cavity 112 is joined to the lower inner cavity 111, and the upper end is joined to the upper inner cavity 113, forming a wedge-shaped structure that is smaller at the bottom and larger at the top. Several second air outlets 1121 are provided through the middle inner cavity 112, forming the air outlet of the second flow path group 200. Several third air outlets 1131 are provided through the upper inner cavity 113, forming the air outlet of the third flow path group 300. This joining method can be welding or integral molding. The wedge-shaped structure design, on the one hand, allows the air force to gradually increase as it flows upward between the inner cavity structure 11 and the outer cavity structure 12, resulting in a better combustion-supporting effect when the air is introduced into the combustion chamber via the third guide path group 300 than when it is introduced into the combustion chamber via the second guide path group 200. On the other hand, it makes it easier for the air to enter the second air outlet 1121 on the middle inner cavity 112 after rising along the lower inner cavity 111, preventing the air from directly passing through the second air outlet 1121 and only entering the combustion chamber through the third air outlet 1131, thereby ensuring the effective combustion support of the second guide path group 200.

[0037] In some specific embodiments, the inner cavity 112 is configured as a conical ring plate structure, and the outer diameter of the inner cavity 112 gradually increases from bottom to top, and the inner diameter of the inner cavity 112 gradually increases from bottom to top. The air outlet 1121 is arranged in an inclined upward direction, so that air can be injected into the combustion chamber in an inclined upward direction, so that the swirling air in the combustion chamber flows spirally upward, which can further promote the full mixing of fuel, fuel debris and carbon monoxide and other combustibles with air, making the fuel combustion more complete and thorough.

[0038] like Figure 3 As shown, in some specific embodiments, the base structure also includes an adjusting plate 32 coaxially arranged on the lower side of the supporting plate 31. The adjusting plate 32 is rotatably connected to the supporting plate 31 via a rotating shaft 8 arranged along the axis of the supporting plate 31. In this embodiment, the supporting plate 31 has a first connecting hole 312 along its axis, and the adjusting plate 32 has a second connecting hole 322 along its axis. The supporting plate 31 and the adjusting plate 32 are rotatably connected by bolts extending into the first connecting hole 312 and the second connecting hole 322 and nuts mating with the bolts. The connecting shaft portion of the bolt forms the rotating shaft 8. The structure is simple and easy to install and disassemble.

[0039] like Figure 3As shown, in some specific embodiments, a plurality of air inlets 311 are arranged circumferentially, and a plurality of adjusting holes 321 corresponding to the air inlets 311 are provided through the adjusting plate 31 circumferentially. The adjusting plate 321 can rotate relative to the support plate 31 between a fully open position and a closed position. In the fully open position, the adjusting holes 321 and the air inlets 311 are arranged opposite to each other and are interconnected, at which time the air volume entering the combustion structure 1 is the maximum. In the closed position, the adjusting holes 321 and the air inlets 311 are staggered, and the adjusting holes 321 are blocked by the support plate 31, and the air inlets 311 are blocked by the adjusting plate 32, at which time air cannot enter the combustion structure 1 through the air inlets 311. By rotating the adjusting plate 32 relative to the support plate 31 between the fully open position and the closed position, the area of ​​the interconnection between the adjusting holes 321 and the air inlets 311 can be adjusted, thereby adjusting the air volume. In this embodiment, the side of the adjustment plate 32 extends outward to have an operation part 323 for the operator to rotate the adjustment plate 32 relative to the support plate 31. The support structure 2 is provided with a guide channel 22. The operation part 323 extends outward through the guide channel 22 and can move along the guide channel 22 to drive the adjustment plate 32 to rotate relative to the support plate 31 between the fully open position and the closed position.

[0040] like Figure 2As shown, in some specific embodiments, each support foot 21 surrounds a mounting channel for mounting the adjustment plate 32. The adjustment plate 32 can extend along the mounting channel to the underside of the support plate 31 and be rotatably connected to the support plate 31, or it can be 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 set as disc structures, which is simple and practical. In other embodiments, the support plate 31 and the adjustment plate 32 can also be set as square disc structures or other shapes. In this embodiment, a notch is formed between adjacent support feet 21, which is arranged from the bottom of the support structure 2 upwards. This notch is arranged below the adjustment plate 32 to form an air inlet channel 20 that can communicate with the adjustment hole 321. The air inlet channel 20 is used to allow external air to flow into the area directly below the adjustment plate 32. The first flow path group 100, the second flow path group 200, and the third flow path group 300 each include a first path a formed by air entering from the air inlet channel 20 and passing through the regulating hole 321 and the air inlet hole 311, and a second path b formed by air rising from the top of the support plate 31 and flowing upward along the area enclosed between the inner wall of the outer cavity structure 12 and the outer wall of the ash pan 4. The first path a guides external air from the air inlet channel 20 directly below the regulating plate 32, and then through the regulating hole 321 and the air inlet hole 311 into the combustion structure 1. The second path b guides the air entering the combustion structure 1 to flow upward along the inner wall of the outer cavity structure 12 and the outer wall of the ash pan 4. The width of the second path b gradually decreases from bottom to top, causing the airflow to gradually increase from bottom to top, thus creating a relatively large pressure difference with the combustion chamber, which is beneficial for guiding air into the combustion chamber and improving the combustion effect.

[0041] like Figure 2 As shown, in some specific embodiments, the first guide path group 100 further includes a third path c that extends upward from the ventilation hole 421 of the ash pan 4 and passes through the air outlet 51 into the grate 5. The third path c is used to guide air into the ash pan 4 through the ventilation hole 421 and into the combustion chamber through the air outlet 51. The ventilation hole 421 is arranged near the upper end of the side wall of the ash pan 4. On the one hand, this allows the ventilation hole 421 to guide air into the ash pan 4 in areas with strong winds, ensuring a better combustion-supporting effect. On the other hand, the distance between the ventilation hole 421 and the bottom of the ash pan 4 is relatively large, while the distance between the ventilation hole 421 and the air outlet 51 is relatively small. This allows the air to quickly enter the combustion chamber through the air outlet 51 after passing through the ventilation hole 421, thus avoiding blowing up the ash in the ash pan 4.

[0042] like Figure 2As shown, in some specific embodiments, the ash pan 4 includes a pan bottom plate 41, a pan side plate 42 extending upward from the periphery of the pan bottom plate 41, and a pan edge structure 43 formed by turning the top of the pan side plate 42 outward. The pan edge structure 43 is fitted inside the inner cavity structure 11, and the grate 5 is movably placed on the pan edge structure 43, thereby ensuring that the fuel placed on the grate 5 is kept burning in the combustion chamber. The heat insulation function can be achieved through the heat insulation cavity between the inner cavity structure 11 and the outer cavity structure 12, so as to prevent the operator from being burned when touching the outer cavity structure 12. The rim structure 43 does not contact the inner cavity structure 11, and the outer diameter of the rim structure 43 is smaller than the inner diameter of the inner cavity structure 11, so as to form a fitting gap 40 between the rim structure 43 and the inner cavity structure 11. The width of the fitting gap 40 is set to 0.5-2mm, which is used to prevent the ash tray 4 from being unable to be fitted inside the inner cavity structure 11 due to thermal expansion and contraction of the combustion structure 1 or the ash tray 4. Preferably, the width of the fitting gap 40 is 1.5mm, which can prevent the ash tray 4 from being unable to be fitted inside the inner cavity structure 11 due to thermal expansion and contraction, while avoiding a large amount of air from directly entering the combustion chamber through the fitting gap 40, thus affecting the air guiding efficiency of the first guide path group 100, the second guide path group 200, or the third guide path group 300.

[0043] In some specific embodiments, the lower support platform 114 is spaced above the support plate 31, such that the second path b is formed by the bottom surface of the lower support platform 114, the inner wall of the portion of the outer cavity structure 12 below the lower support platform 114, the inner wall of the portion of the lower inner cavity 111 below the rim structure 43, the outer wall of the ash pan 4, and the top surface of the support plate 31. The entire second path b has a large range of motion, and the support plate 31 is located directly below the combustion chamber, allowing more air to be guided from the support plate 31 into the combustion structure 1 by opening air inlets 311 in various parts of the support plate 31. When the cold air entering from the outside flows along the support plate 31, the bottom plate 41, the side plate 42, the rim structure 43, the inner cavity structure 11, and the outer cavity structure 12, it can also exchange heat with these structures, thereby gradually converting the cold air into hot air that is more conducive to combustion, and also dissipating heat from these structures to prevent burns to the operator.

[0044] In some specific embodiments, the second flow path group 200 and the third flow path group 300 further include a fourth path d formed upward from the ventilation hole 1141 of the lower support platform 114 and along the area enclosed between the inner wall of the outer cavity structure 12 and the outer wall of the lower inner cavity portion 111, and a fifth path e formed upward along the area enclosed between the inner wall of the outer cavity structure 12 and the outer wall of the middle inner cavity portion 112. The fourth path d guides air through the ventilation hole 1141 into the spaced cavity formed by the inner cavity structure 11 and the outer cavity structure 12, and flows upward along the outer wall of the lower inner cavity portion 111 and the inner wall of the outer cavity structure 12. The fifth path e guides air upward along the outer wall of the middle inner cavity portion 112 and the inner wall of the outer cavity structure 12, and a portion of the air flowing along the fifth path e can enter the combustion chamber through the air outlet 1121. The width of the fourth path d is smaller than the width of the second path b, so that the airflow in the fourth path d is greater than the airflow in the second path b. The width of the fifth path e gradually decreases from bottom to top, causing the wind force in the fifth path e to gradually become greater than the wind force in the fourth path d from bottom to top.

[0045] In some specific embodiments, the third airflow path group 300 further includes a sixth path f arranged upwards and formed along the area enclosed between the inner wall of the outer cavity structure 12 and the outer wall of the upper inner cavity portion 113. The sixth path f is used to guide air to flow upwards along the outer wall of the upper inner cavity portion 113 and the inner wall of the outer cavity structure 12, and part of the air flowing along the sixth path f can enter the combustion chamber through the air outlet 1131. The airflow force in the sixth path f is greater than the airflow force in the fifth path e.

[0046] like Figure 2 As shown, in some specific embodiments, the outer cavity body is configured as a conical structure, and the radius of the upper end of the outer cavity structure 12 is smaller than the radius of the lower end. This allows the pressure of the upward airflow to gradually increase from bottom to top, making the airflow force at the outlet of the second guide path group 200 greater than that at the outlet of the first guide path group 100, and the airflow force at the outlet of the third guide path group 300 greater than that at the outlet of the second guide path group 200. This allows the second guide path group 200 to provide more air for secondary combustion than the first guide path group 100. The combustion is aided by the third flow path group 300, which provides more air for the three combustion processes than the second flow path group 200. As the air flows upward, its temperature increases due to the influence of the combustion chamber temperature. Therefore, the combustion aiding effect of air introduced into the combustion chamber through the second flow path group 200 is better than that of air introduced into the combustion chamber through the first flow path group 100. The combustion aiding effect of air introduced into the combustion chamber through the third flow path group 300 is better than that of air introduced into the combustion chamber through the second flow path group 200.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0048] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A stove that facilitates the cleaning of ash, characterized in that, Includes a base structure for placement on a support interface and a combustion structure that can be movably placed on the base structure, wherein: The combustion structure is configured as a sleeve structure that runs vertically through the top and bottom, having an inner cavity structure, an outer cavity structure, and a combustion chamber, wherein the combustion chamber is defined inwardly by the inner cavity structure; The base support structure includes a support plate, a support structure for supporting the support plate away from the support interface, and an ash tray connected to the upper part of the support plate via a first connecting structure. The support structure has a limiting member arranged in a circumferential direction and protruding from the upper part of the support plate. The support plate and the limiting member surround and form an installation area for placing the combustion structure. After placement, the combustion structure and the limiting member are nested together. The upper part of the ash tray is located in the combustion chamber. The combustion structure can be lifted upward from the installation area to be removed from the base support structure.

2. The stove according to claim 1, characterized in that: The limiting member is arranged around the outer periphery of the support plate. The installation area is formed by the outer periphery of the support plate and the inner wall of the limiting member. The outer cavity structure includes an outer cavity body and a positioning member connected to the lower end of the outer cavity body. When the combustion structure is placed in the installation area, the positioning member is sleeved in the limiting member and supported on the upper side of the support plate. The outer periphery of the ash pan and the limiting member form a removal channel for the combustion structure to be lifted upward from the installation area to move out of the base support structure.

3. The stove according to claim 2, characterized in that: The positioning element includes a positioning ring plate extending downward from the lower end of the outer cavity body and a support ring formed by turning inward from the lower end of the positioning ring plate. When the combustion structure is placed on the base structure, the positioning ring plate is sleeved inside the limiting element, and the support ring is supported on the upper side of the support plate.

4. The stove according to claim 3, characterized in that: The support plate includes a support plate body and a connecting edge formed by the downward turning edge of the outer periphery of the support plate body, wherein the outer wall of the connecting edge is combined with the inner wall of the support structure.

5. The stove according to claim 1, characterized in that: The support structure forms a gripping structure for the operator to pour ash from the ash pan.

6. The stove according to claim 5, characterized in that: The support structure also has support feet for placement on the support interface, with a notch formed between adjacent support feet that extends upward from the bottom of the support structure. The gripping structure is formed by the support feet, or the gripping structure is formed by a portion of the support structure above the notch.

7. The stove according to any one of claims 1-5, characterized in that: It also includes a first flow path group for allowing external air to enter the combustion chamber for combustion, a second flow path group with its air outlet located above the air outlet of the first flow path group, and a third flow path group with its air outlet located above the air outlet of the second flow path group. An air inlet hole is provided through the support plate. A grate is movably placed on the upper part of the ash pan. The air outlet of the first flow path group is arranged on the grate. The air outlet of the second flow path group is arranged around the middle of the combustion chamber on the inner cavity structure. The air outlet of the third flow path group is arranged around the upper part of the combustion chamber on the inner cavity structure.

8. The stove according to claim 7, characterized in that: The ash pan is provided with a number of ventilation holes along its side wall, and the grate is provided with a number of air outlet holes. The ventilation holes are arranged on the first flow path group, and the air outlet holes form the air outlet of the first flow path group.

9. The stove according to claim 7, characterized in that: The inner cavity structure includes a lower inner cavity, a middle inner cavity, an upper inner cavity, a lower support platform formed by turning the bottom of the lower inner cavity outward, and an upper support platform formed by turning the top of the upper inner cavity outward. The lower support platform is spaced above the support plate, and the outer end of the lower support platform is connected to the inner wall of the outer cavity structure. Several ventilation holes are provided through the lower support platform. The outer end of the upper support platform is connected to the outer cavity structure. The circumferential dimension of the upper inner cavity is larger than that of the lower inner cavity. The lower end of the middle inner cavity is combined with the lower inner cavity, and the upper end is combined with the upper inner cavity to form a wedge-shaped structure that is smaller at the bottom and larger at the top. Several air outlet holes are provided through the middle inner cavity, and the air outlet holes form the air outlet of the second flow path group. Several air outlet holes are provided through the upper inner cavity, and the air outlet holes form the air outlet of the third flow path group.

10. The stove according to claim 7, characterized in that: The base structure also includes an adjustment plate coaxially arranged on the lower side of the support plate. The adjustment plate is rotatably connected to the support plate via a rotating shaft arranged along the axis of the support plate. A plurality of air inlets are arranged in a circumferential direction. A plurality of adjustment holes corresponding to the air inlets are provided through the adjustment plate in a circumferential direction. The adjustment plate can rotate relative to the support plate between a fully open position and a closed position. In the fully open position, the adjustment holes and air inlets are arranged opposite to each other and are interconnected. In the closed position, the adjustment holes and air inlets are staggered, and the adjustment holes are blocked by the support plate, and the air inlets are blocked by the adjustment plate. The support structure also has support feet for placement on the support interface. A notch is formed between adjacent support feet, extending upward from the bottom of the support structure. The notch is arranged below the adjustment plate to form an air inlet channel that can communicate with the adjustment hole. The first flow path group, the second flow path group, and the third flow path group each include a first path that enters from the air inlet channel and passes through the adjustment hole and the air inlet hole, and a second path that extends upward from the top of the support plate and extends along the area enclosed between the inner wall of the outer cavity structure and the outer wall of the ash pan. The width of the second path gradually decreases from bottom to top.

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