A collapsible smokeless fire pit

Abstract

The utility model provides a kind of foldable smokeless stove, it is related to smokeless stove technical field, the smokeless stove includes support part, enclosure part, combustion part, combustion part is set on two air guide units of relative arrangement, combustion part is used for the combustion of firewood, guide part, guide part is set on enclosure part, for four air guide units in enclosure part are enclosed together, while the flame produced when firewood burns can be guided to the direction of the middle part of guide part, this kind of smokeless stove, can first burn firewood, after firewood is burned, by again supplementing fresh air, the generated incomplete combustion particles will be secondary combustion, so that the generation of flue gas can be greatly reduced, the use of user is facilitated, and four air guide units can be stored in the inside of bottom box, the space occupied by the smokeless stove can be reduced, outdoor carrying is facilitated, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of smokeless stove technology, specifically a foldable smokeless stove. Background Technology

[0002] When cooking outdoors or making a quick meal using a wood-burning stove, if the fuel used is ordinary firewood instead of smokeless fuel such as smokeless charcoal, a lot of smoke will be produced when burning. Not only will the smoke cause discomfort to the user, but it will also drift in the wind in an unpredictable direction, making it troublesome and difficult for the user to avoid the smoke, and thus not very convenient to use. Utility Model Content

[0003] The purpose of this invention is to provide a foldable smokeless stove, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: the smokeless furnace includes:

[0005] The support part can be used to provide air for the combustion of firewood, and at the same time, the support part can be used to receive the ash produced after the firewood is burned.

[0006] The enclosure is mounted on the support and has four independently rotatable air guiding units. The four air guiding units can be rotatable to the inside of the support. When the air guiding units are located outside the support, they can be used to provide air for the combustion of firewood.

[0007] A combustion section is provided on two oppositely arranged air guiding units, and the combustion section is used for burning firewood;

[0008] The guide section is disposed on the enclosure section and is used to enclose the four air guiding units in the enclosure section together, and at the same time guide the flames generated when the firewood is burning towards the center of the guide section.

[0009] Preferably, the support includes a base box, a mounting groove is provided on one side of the base box, an ash hopper is slidably connected inside the mounting groove, an air inlet groove is provided on the side of the base box opposite to the mounting groove, and a pressure plate is provided on the upper surface of the base box, the pressure plate being inclined.

[0010] Preferably, the air guiding unit in the enclosure includes an outer protective plate and an inner plate. The inner plate is disposed inside the outer protective plate, and there is a cavity between the outer protective plate and the inner plate. Air guiding holes are provided on the lower part of the surface of the outer protective plate and the upper part of the surface of the inner plate. The height of the outer protective plate of different air guiding units is different. The lower end of the outer protective plate is connected to the side wall of the bottom box by a hinge. When the outer protective plates of the four air guiding units are all installed on the bottom box and perpendicular to the bottom box, the upper ends of the outer protective plates of the four air guiding units are at the same horizontal height.

[0011] Preferably, the combustion section includes two crossbars and a support plate. The two ends of the crossbars are provided with annular grooves, and two mounting holes are provided on the two inner plates arranged opposite each other. The two annular grooves at both ends of the crossbars can enter the mounting holes on the two inner plates. The support plate is placed above the two crossbars, and a through hole is provided on the upper surface of the support plate.

[0012] Preferably, the guide portion includes an annular and rectangular pressure frame, the lower surface of the pressure frame is provided with a groove, the upper ends of the outer protective plate and the inner plate are located inside the groove, and a fire guide plate is provided on one side of the groove, the fire guide plate being inclined upward.

[0013] The beneficial effects of this utility model are:

[0014] This foldable smokeless stove can first burn firewood. After the firewood has burned once, fresh air is added again to allow the unburned particles to be burned a second time, which can greatly reduce the production of smoke and make it convenient for users. In addition, the four air guiding units can be stored inside the bottom box, which can reduce the space occupied by the smokeless stove, making it convenient to carry outdoors and use. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0016] Figure 2 This is an exploded view of a specific embodiment of this utility model.

[0017] Figure 3 This is a schematic diagram of the assembly of the inner plate and the crossbar.

[0018] Figure 4 This is a schematic diagram of the support plate being placed on the crossbar.

[0019] Figure 5 This is a partial structural diagram of the crossbar.

[0020] Figure 6 This is a schematic diagram showing the outer protective panel and inner panel folded inside the bottom box.

[0021] Figure 7 yes Figure 6 A partial sectional view of the bottom box in its current state.

[0022] Figure 8 This is an assembly diagram of the pressure frame, outer protective plate, and inner plate.

[0023] In the diagram: 1. Bottom box; 2. Ash hopper; 3. Air inlet slot; 4. Pressure plate; 5. Outer protective plate; 6. Inner plate; 7. Air duct; 8. Hinge; 9. Crossbar; 10. Support plate; 11. Annular groove; 12. Mounting hole; 13. Through hole; 14. Pressure frame; 15. Fire guide plate. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-8 As shown, a foldable smokeless stove includes:

[0026] The support section can be used to provide air for the combustion of firewood, and at the same time, the support section is used to receive the ash produced after the firewood burns.

[0027] The enclosure is mounted on the support and has four independently rotatable air guiding units. The four air guiding units can be rotated into the interior of the support. When the air guiding units are located outside the support, they can be used to provide air for the combustion of firewood.

[0028] The combustion section is located on two oppositely arranged air guiding units and is used for the combustion of firewood.

[0029] The guide section is located on the enclosure section and is used to enclose the four air guiding units in the enclosure section together, while also guiding the flames generated when the firewood is burning towards the center of the guide section.

[0030] Furthermore, the support includes a base box 1, an installation groove is provided on one side of the base box 1, an ash hopper 2 is slidably connected inside the installation groove, an air inlet groove 3 is provided on the side of the base box 1 opposite to the installation groove, and a pressure plate 4 is provided on the upper surface of the base box 1, the pressure plate 4 is inclined.

[0031] The base box 1 and the pressure plate 4 are a whole. The pressure plate 4 is inclined inward to the base box 1 so as to apply inward pressure to the guide unit and prevent the guide unit from flipping outward to the outside of the base box 1. When the guide unit is perpendicular to the bottom of the base box 1, the pressure plate 4 will bend due to compression. However, when the guide unit flips inward to the inside of the base box 1, the pressure plate 4 can automatically reset.

[0032] A handle is provided at one end of the ash hopper 2 for easy control. The mounting groove is formed by stamping or laser cutting and is used to provide an air entry channel for the initial combustion of firewood.

[0033] Furthermore, the air guiding unit in the enclosure includes an outer protective plate 5 and an inner plate 6. The inner plate 6 is located inside the outer protective plate 5. There is a cavity between the outer protective plate 5 and the inner plate 6. Air guiding holes 7 are provided on the lower part of the surface of the outer protective plate 5 and the upper part of the surface of the inner plate 6. The height of the outer protective plate 5 of different air guiding units is different. The lower end of the outer protective plate 5 is connected to the side wall of the bottom box 1 by a hinge 8. When the outer protective plates 5 of the four air guiding units are all installed on the bottom box 1 and perpendicular to the bottom box 1, the upper ends of the outer protective plates 5 of the four air guiding units are at the same horizontal height.

[0034] The outer protective plate 5 and the inner plate 6 are fixed by welding or riveting. The installation height of the four outer plates in the bottom box 1 is different. Therefore, the outer protective plate 5 and the inner plate 6 can be stored in the bottom box 1 by flipping the outer protective plate 5 in turn. The outer protective plate 5 with the lowest connection position to the bottom box 1 is flipped into the bottom box 1 first, and the outer protective plate with the highest connection position to the bottom box 1 is flipped into the bottom box 1 last.

[0035] After the outer protective plate 5 and the inner plate 6 are fixed together, the thickness of the cavity formed between them is not less than 15mm, so as to ensure that the external air can enter the cavity through the air guide hole 7 on the outer protective plate 5 and be discharged outward through the air guide hole 7 on the inner plate 6. When the air guide hole 7 is discharged outward from the air guide hole 7 on the inner plate 6, it can provide air above the firewood flames for a second time, so that the smoke generated when the firewood is burning can be burned again, thereby reducing the generation of smoke.

[0036] Furthermore, the combustion section includes two crossbars 9 and a support plate 10. The two ends of the crossbars 9 are provided with annular grooves 11, and the two inner plates 6 arranged opposite each other are provided with two mounting holes 12. The two annular grooves 11 at both ends of the crossbars 9 can enter the mounting holes 12 on the two inner plates 6. The support plate 10 is placed above the two crossbars 9, and the upper surface of the support plate 10 is provided with a through hole 13.

[0037] The outer diameter of the crossbar 9 is smaller than the inner diameter of the mounting hole 12. When the two upright plates are in a relatively upright state, first insert one end of the crossbar 9 into the mounting hole 12 on one of the inner plates 6 at an angle. Then, flatten the crossbar 9 and insert the other end of the crossbar 9 into the mounting hole 12 on the other inner plate 6. Then, release the crossbar 9 so that the two annular grooves 11 on the crossbar 9 engage with the mounting holes 12 on the inner plate 6, thereby placing the crossbar 9. After the crossbar 9 is placed, the annular grooves 11 can prevent the crossbar 9 from separating from the mounting hole 12. At the same time, the crossbar 9 can also support the inner plate 6 through the annular grooves 11, thereby supporting the air guiding unit. After the two air guiding units are supported by the crossbar 9, the air guiding units will remain in a relatively upright state. After the installation of the two crossbars 9 is completed, the support plate 10 is placed directly on the two crossbars 9. At this time, the support plate 10 can support the four inner plates 6 at the same time, so that the four air guiding units remain in a relatively upright state.

[0038] The through holes 13 are evenly distributed on the support plate 10, but the area where the through holes 13 are distributed on the support plate 10 should be located at the top of the ash hopper 2 and should not exceed the range of the ash hopper 2, so that as much ash as possible can enter the ash hopper 2 after the firewood has burned out.

[0039] Furthermore, the guide section includes an annular and rectangular pressure frame 14, the lower surface of the pressure frame 14 is provided with a groove, the upper ends of the outer protective plate 5 and the inner plate 6 are located inside the groove, and a fire guide plate 15 is provided on one side of the groove, the fire guide plate 15 is inclined upward.

[0040] The pressure frame 14 can be directly attached to the four protective plates and the four inner plates 6 through the through slot. The pressure frame 14 can restrict the protective plates from flipping inward and outward to improve the stability of the enclosure. At the same time, the fire guide plate 15 can guide the generated flame to the inside of the pressure frame 14 to avoid the flame spreading and affecting the heating effect.

[0041] When using it, first set up the smokeless stove, then place the firewood on the support plate 10 and light it. The air inlet slot 3 on the bottom box 1 provides the main air inflow channel for the primary combustion of the firewood. When the firewood is burning, the unburned particles will move upward. The external air is introduced into the upper part of the smokeless stove through the air guide holes 7 on the outer protective plate 5 and the air guide holes 7 on the inner plate 6, so that the rising unburned particles can be burned again, thereby reducing the smoke produced when the firewood is burning. If the firewood is dry and the ambient humidity is low, it can even achieve a near-smokeless effect, and the use effect is good.

[0042] When the firewood is burning on the support plate 10, the staff can stir the bottom of the firewood with firewood sticks from time to time to avoid the through hole 13 on the support plate 10 being seriously blocked by ash.

[0043] When the smokeless stove needs to be folded, it must first be cooled down, which can be done quickly by splashing water. After cooling, first remove the pressure frame 14 from the top of the four air guiding units, then remove the support plate 10 from the two crossbars 9, then remove the two crossbars 9 from the inner plate 6, then remove the ash hopper 2 from the bottom box 1, and finally flip the four air guiding units into the bottom box 1 in sequence. By folding and storing the four air guiding units in the bottom box 1, the volume of the smokeless stove can be reduced, making it convenient to carry outdoors and improving the ease of use.

[0044] Meanwhile, the bottom box 1, ash hopper 2, pressure plate 4, outer protective plate 5, inner plate 6, support plate 10, pressure frame 14 and fire guide plate 15 are all made of thin metal sheets. The bottom box 1, ash hopper 2, outer protective plate 5 and pressure frame 14 are all processed by sheet metal technology. The crossbar 9 is a metal bar, which can bear the weight of the support plate 10 and firewood, and will not be bent due to heat during use.

[0045] The smokeless stove primarily uses firewood, but dry branches, dried corncobs, and dry straw can also be used.

[0046] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 based on the specific circumstances.

Claims

1. A foldable smokeless stove, characterized in that, include: The support part can be used to provide air for the combustion of firewood, and at the same time, the support part can be used to receive the ash produced after the firewood is burned. The enclosure is mounted on the support and has four independently rotatable air guiding units. The four air guiding units can be rotatable to the inside of the support. When the air guiding units are located outside the support, they can be used to provide air for the combustion of firewood. A combustion section is provided on two air guiding units arranged opposite each other, and the combustion section is used for burning firewood; The guide section is installed on the enclosure section to enclose the four air guiding units in the enclosure section and to guide the flames generated when the firewood is burning towards the center of the guide section.

2. The foldable smokeless stove according to claim 1, characterized in that, The support includes a base box, a mounting groove is provided on one side of the base box, an ash hopper is slidably connected inside the mounting groove, an air inlet groove is provided on the side of the base box opposite to the mounting groove, and a pressure plate is provided on the upper surface of the base box, the pressure plate is inclined.

3. The foldable smokeless stove according to claim 2, characterized in that, The air guiding unit in the enclosure includes an outer protective plate and an inner plate. The inner plate is located inside the outer protective plate, and there is a cavity between the outer protective plate and the inner plate. Air guiding holes are provided on the lower part of the surface of the outer protective plate and the upper part of the surface of the inner plate. The height of the outer protective plate of different air guiding units is different. The lower end of the outer protective plate is connected to the side wall of the bottom box by a hinge. When the outer protective plates of the four air guiding units are all installed on the bottom box and perpendicular to the bottom box, the upper ends of the outer protective plates of the four air guiding units are at the same horizontal height.

4. The foldable smokeless stove according to claim 3, characterized in that, The combustion section includes two crossbars and a support plate. The two ends of the crossbars are provided with annular grooves, and the two inner plates arranged opposite each other are provided with two mounting holes. The two annular grooves at both ends of the crossbars can enter the mounting holes on the two inner plates. The support plate is placed above the two crossbars, and the upper surface of the support plate is provided with a through hole.

5. The foldable smokeless stove according to claim 4, characterized in that, The guide portion includes an annular and rectangular pressure frame. A groove is formed on the lower surface of the pressure frame. The upper ends of the outer protective plate and the inner plate are located inside the groove. A fire guide plate is provided on one side of the groove, and the fire guide plate is inclined upward.

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