Combustion equipment

Abstract

To provide a combustion device which can be carried easily.SOLUTION: A combustion device 10 is a combustion device for burning woods and includes: a body 20 provided with a combustion chamber 22 for burning woods, a burner spot 20A for placing the woods into the combustion chamber 22, and an exhaust port 20B for exhausting combustion gas generated in the combustion chamber 22; and a cover member 60 which is attached to the body 20 so as to be displaceable between a wood input position P3 where the cover member 60 protrudes from the body 20 to place the woods into the burner spot 20A and a storage position P1 where the cover member 60 is displaced from the wood input position P3 to the body 20 side and covers the burner spot 20A.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a combustion device that combusts fuel. [Background technology]

[0002] When engaging in outdoor activities such as camping, people may gather and burn tree branches and firewood to, for example, boil water or keep warm. In such cases, they may use a combustion device such as a rocket stove.

[0003] Patent Document 1 discloses a rocket stove (combustion device) that has a combustion chamber with an air intake for primary combustion, a main body consisting of a combustion tube (heat riser) located directly above the combustion chamber and used for secondary combustion of unburned gas generated in the combustion chamber, and a fuel inlet tube configured to protrude from the main body for introducing firewood, etc. into the combustion chamber, thereby improving combustion efficiency. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication 2019-7645 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the combustion device described in Patent Document 1 has a problem in that no consideration is given to portability of the combustion device.

[0006] An object of the present invention is to provide a combustion device that is easily portable. [Means for solving the problem]

[0007] The combustion device of the present invention is a combustion device for burning wood, and includes a main body provided with a combustion chamber for burning wood, a fire opening for feeding wood into the combustion chamber, and an exhaust port for exhausting combustion gas generated in the combustion chamber; A combustion tube configured to be insertable into the main body; A cover member attached to the main body so as to be displaceable between a wood insertion position protruding from the main body for inserting wood into the fire opening and a storage position displaced toward the main body from the wood insertion position to cover the fire opening; 、 Equipped with The combustion cylinder is detachably attached to a preset position by abutting against a protrusion provided inside the main body when inserted into the main body. It is something.

[0008] In the combustion apparatus of the present invention, the wood input position may be a position where the cover member is inclined with respect to the main body.

[0009] The combustion device of the present invention may further include a support section that is configured to surround the exhaust port and expand upward, and that is configured so that a cooking utensil larger than the exhaust port can be placed thereon. In the combustion device of the present invention, the main body is provided with an air vent at a position adjacent to the combustion cylinder when the combustion cylinder is attached to a predetermined position, and the combustion cylinder may be provided with a gap at a position adjacent to the air vent for supplying outside air into the combustion cylinder when the combustion cylinder is attached to the predetermined position. In the combustion device of the present invention, the main body is provided with an air vent at a position adjacent to the combustion cylinder when the combustion cylinder is attached at a predetermined position, and the combustion cylinder is configured as an approximately square frame when viewed in a plane, and gaps may be provided at each of the opposing corners for introducing outside air introduced through the air vent into the combustion cylinder. Effect of the Invention

[0010] According to the combustion device of the present invention, the cover member is configured to be displaceable between a wood insertion position where it protrudes from the main body to insert wood into the fire opening, and a storage position where it is displaced toward the main body from the wood insertion position to cover the fire opening. Therefore, by displacing the cover member to the storage position, the length by which the cover member protrudes from the main body can be reduced, making the device more compact, and making it easier to carry. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing the overall configuration of a combustion device in use, and a perspective view showing a portion of the grill and an expandable cover in an exploded state. [Diagram 2] FIG. 2 is a perspective view of the extension cover and a diagram showing the configuration of each support plate that constitutes the extension cover. [Diagram 3]Fig. 3(a) is a diagram showing the configuration of the combustion device as seen from the side, Fig. 3(b) is a diagram showing the configuration of a combustion tube included in the combustion device, and Fig. 3(c) is a diagram showing the cross-sectional configuration when cut along line AA shown in Fig. 3(a). [Figure 4] Fig. 4(a) is a side view showing the configuration of the combustion device in the stored state, Fig. 4(b) is a diagram showing the rear side configuration of the combustion device in the stored state, and Fig. 4(c) is a diagram showing the configuration around the exhaust port on the upper end side of the main body as seen from the direction B shown in Fig. 4(b). [Diagram 5] Fig. 5(a) is a diagram showing the configuration of the bottom surface of the main body shown in Fig. 4(a), and Fig. 5(b) is a diagram showing a state in which the bottom plate of the bottom surface of the main body shown in Fig. 5(a) has been slightly slid backward. [Figure 6] Fig. 6(a) is a side view showing a state where the cover member in the stored state is slid to an upper rotatable position, and Fig. 6(b) is a side view showing a state where the cover member is rotated from the rotatable position shown in Fig. 6(a) to the wood input position. [Figure 7] Fig. 7(a) is a diagram showing the configuration of the combustion device in the usage state shown in Fig. 6(b) when viewed from the opposite side, and Fig. 7(b) is a diagram showing a schematic cross-sectional configuration when cut along line BB shown in Fig. 7(a). [Figure 8] Fig. 8(a) is a diagram showing the configuration of the tip side of the detachable lever, and Fig. 8(b) is a diagram showing the configuration of the detachable lever in a plan view. [Figure 9] Fig. 9(a) is a side view showing the state where the detachable lever is attached to the main body, Fig. 9(b) is a cross-sectional view showing the state where the tip of the detachable lever is inserted into the fixing hole of the main body, and Fig. 9(c) is a cross-sectional view showing the state where the detachable lever is rotated downward from the state shown in Fig. 9(b). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, a combustion device 10 according to an embodiment of the present invention will be described with reference to the drawings. In the drawings, "X" indicates the left-right direction X, which is a horizontal direction, "Y" indicates the front-rear direction Y, which is a horizontal direction perpendicular to the left-right direction X, and "Z" indicates the up-down direction Z perpendicular to the left-right direction X and the front-rear direction Y.

[0013] Fig. 1 is a perspective view showing the overall configuration of a combustion device 10 in use. As shown in Fig. 1, the combustion device 10 is a so-called rocket stove that is mainly used when camping. The combustion device 10 includes a main body 20 having a generally vertically long box-like external shape, and a cover member 60 attached to the main body 20.

[0014] The main body 20 is a cylindrical body in which a front panel 20-1 and side panels 20-2, 20-3 (see FIG. 3(b)) on both the left and right sides are formed by bending a metal plate material into an approximately U-shape, and a rear panel 20-4 (see FIG. 3(b)) is attached between the side panels 20-2, 20-3. The main body 20 is provided with a combustion chamber 22 at its bottom, which serves to burn wood such as firewood and trees (including tree branches). A fire opening 20A for feeding wood is provided at the bottom of the front panel 20-1 of the main body 20 facing the combustion chamber 22. An exhaust port 20B is provided at the top end of the main body 20. The exhaust port 20B has the function of discharging combustion gas generated by the combustion of wood in the combustion chamber 22.

[0015] As shown in FIG. 1, in the center of the main body 20 in the vertical direction Z, ventilation holes 24H-1, 24H-2, 24H-3, ... (hereinafter, referred to as ventilation hole "24H" unless there is a need to distinguish between them), 25H-1, 25H-2, 25H-3 (hereinafter, referred to as ventilation hole "25H" unless there is a need to distinguish between them), ventilation holes 26H-1, 26H-2, 26H-3, ... (hereinafter, referred to as ventilation hole "26H" unless there is a need to distinguish between them), and 27H-1, 27H-2, 27H-3 (hereinafter, referred to as ventilation hole "27H" unless there is a need to distinguish between them) are provided in each of the panels 20-1 to 20-4 in order to introduce outside air into the main body 20 (see FIG. 3(c) for ventilation holes 26H and 27H).

[0016] The main body 20 has a combustion tube (heat riser) 30, which will be described in detail later, built in between the combustion chamber 22 at the bottom and the exhaust port 20B at the top. A grill (cooking utensil) 40 for cooking meat, vegetables, etc., and an extension cover (support) 50 for installing the grill 40 at the top end of the main body 20 are attached to the top end of the main body 20. A screw hole 20X-1 (see FIG. 5(a)) is provided in the center of the bottom of the main body 20. Then, for example, a hand screw HS that can be tightened and loosened by hand is screwed into the screw hole 20X-1 (see FIG. 5(a)), whereby the base plate PL, which is configured to be approximately H-shaped in plan view, is detachably fixed to the bottom of the main body 20. This allows the base plate PL to be fixed to the main body 20 without using a tool such as a screwdriver.

[0017] FIG. 2 is a perspective view showing the configuration of the extension cover 50 and a plan view of each of the support plates 51 and 53 constituting the cover 50. As shown in FIG. 2, the extension cover 50 is configured by combining four support plates 51 to 54 formed in a substantially isosceles trapezoid shape in which the upper base is shorter than the lower base. The support plates 51 to 54 are configured by support plates 51 and 52 having a relatively large dimension in the width direction and support plates 53 and 54 having a relatively small dimension in the width direction. Here, since the support plates 51 and 52 have the same configuration, the support plate 51 will be mainly described and the description of the support plate 52 will be omitted as appropriate. Similarly, since the support plates 53 and 54 have the same configuration, the support plate 53 will be mainly described and the description of the support plate 54 will be omitted as appropriate.

[0018] 2, slits 51A and 51B, which are elongated cuts approximately parallel to the sides forming both legs of the plate 51, extend downward (upper base 51T) from the upper end (lower base 51K) at both ends of the support plate 51 formed in a substantially isosceles trapezoid shape, and notches 51C and 51D for attachment to the exhaust port 20B of the main body 20 are provided at both ends of the lower end side of the plate 51. In addition, slits 53A and 53B, which are elongated cuts approximately parallel to the sides forming both legs of the plate 53, are formed at both ends of the support plate 53 formed in a substantially isosceles trapezoid shape, so as to extend upward (lower base 53K) from the lower end (upper base 53T).

[0019] Here, a method of assembling the support plates 51 to 54 will be described. Slit 51B of support plate 51 is inserted into slit 53A of support plate 53. Similarly, slit 53B of support plate 53 is inserted into a slit on one end side of support plate 52, a slit on the other end side of support plate 52 is inserted into a slit on one end side of support plate 54, and a slit on the other end side of support plate 54 is inserted into slit 51A of support plate 51, whereby extension cover 50 having an external shape of a truncated pyramid with both upper and lower ends open as shown in FIG. 2 can be assembled.

[0020] Next, the extension cover 50 is placed on the main body 20 so that the notches 51C, 51D of the support plate 51 and the notch of the support plate 52 constituting the extension cover 50 fit into the side panels 20-2, 20-3 (see FIG. 3(a)) constituting the exhaust port 20B of the main body 20. By placing it in this manner, as shown in FIG. 1, the lower ends of the support plates 51 to 54 are slightly inserted into the exhaust port 20B, and the extension cover 50 can be positioned at the exhaust port 20B.

[0021] This allows the exhaust port 20B of the main body 20 to be surrounded by the extension cover 50. Therefore, the heat of the combustion gas generated in the combustion chamber 22 can be efficiently transferred to the grill 40 installed on the extension cover 50. The grill 40 is made of a metal such as iron, has a substantially rectangular shape in a plan view, and is configured to be larger in size than the exhaust port 20B. In this way, by using the extension cover 50, it is possible to install a grill 40 that is larger in size than the exhaust port 20B in a plan view. In this embodiment, the grill 40 is installed on the extension cover 50, but cooking utensils other than the grill 40, such as a griddle, may be installed on the extension cover 50.

[0022] 1, the cover member 60 is a member having a cross section formed in a substantially U-shape, and a lid plate 62, which will be described in detail later, is removably attached to the top of the cover member 60 to form a cylinder that communicates with the fire opening 20A and has the function of guiding wood to the fire opening 20A. In addition, the above-mentioned configuration can prevent the fire in the combustion chamber 22 from going out when wind or the like blows into the fire opening 20A.

[0023] FIG. 3(a) is a diagram showing the configuration of the combustion device 10 in a side view. In FIG. 3(a), the positions of the ventilation spacer 64, the fire opening 20A, and the combustion tube 30 arranged in the combustion device 10 are virtually shown by dashed lines. As shown in FIG. 3(a), the ventilation spacer 64 having the function of supplying air from below to the wood thrown into the fire opening 20A is placed on the cover member 60. The ventilation spacer 64 is configured such that the tip portion is bent so as to follow the bottom surface of the combustion chamber 22 when the tip portion is inserted into the combustion chamber 22 from the fire opening 20A, and a part or the entire surface is formed in a mesh shape. This allows the air required for combustion to be supplied from the outside when wood is thrown into the combustion chamber 22 from the fire opening 20A and burned.

[0024] Here, Fig. 3(b) is a diagram showing the configuration of the combustion tube 30 built into the combustion device 10. Fig. 3(c) is a cross-sectional view showing the configuration when cut along the line AA shown in Fig. 3(a). As shown in Figs. 3(b) and 3(c), the combustion tube 30 is attached directly below the exhaust port 20B of the main body 20. The combustion tube 30 serves as a heat insulator that prevents gases such as exhaust gas passing through the combustion tube 30 from coming into contact with the outside air and being cooled.

[0025] Therefore, the unburned gas passing through the combustion tube 30 can be kept at a high temperature and subjected to secondary combustion. As a result, the amount of smoke discharged from the exhaust port 20B can be reduced, and the combustion efficiency can be improved. In addition, the combustion tube 30 is configured in a shape that allows it to be inserted into the main body 20 from the exhaust port 20B with the above-mentioned grill (cooking utensil) 40 and extension cover 50 removed from the exhaust port 20B. This allows the combustion tube 30 to be removed from the main body 20 for maintenance such as cleaning.

[0026] As shown in Fig. 3(b), the combustion cylinder 30 is formed into a cylindrical shape by welding and fixing approximately square frame-shaped flange plates 36, 38 to the upper and lower ends of approximately L-shaped metal plates 32, 34. As shown in Fig. 3(c), the metal plates 32, 34 are arranged so that their ends face each other at diagonal corners in a plan view. As a result, slit-like gaps SP1, SP2 are formed between the two plates 32, 34, and outside air introduced from the air vents 24H-27H of the main body can be supplied into the cylinder through the gaps SP1, SP2 to promote combustion.

[0027] As shown in FIG. 3(c), this combustion tube 30 is configured to be installable at a preset position in the upper part of the main body 20, as shown by the dashed line in FIG. 3(a), by abutting the lower flange plate 38 against the support protrusions R1, R2, R3, and R4 provided within the main body 20.

[0028] Next, the configuration of the combustion device 10 in the stored state will be described with reference to Fig. 4(a) to Fig. 4(c). Fig. 4(a) is a side view showing the configuration of the combustion device 10 in the stored state. Fig. 4(b) is a view showing the rear side configuration of the combustion device 10 in the stored state. In addition, in the partially enlarged view included in Fig. 4(b), the bottom plate 20T is hatched to easily illustrate the configuration of the plate 20T. Fig. 4(c) is a view showing the configuration around the exhaust port 20B on the upper end side of the main body 20 as viewed from the direction B shown in Fig. 4(b). In addition, in Fig. 4(a), the hand-operated screw HS described later is omitted from the illustration.

[0029] As shown in Figures 4(a) and 4(b), in the stored state, with the lid plate (see Figure 3(a)) 62 removed, the cover member 60 rotates and displaces along the main body 20 to cover the fire opening 20A. Here, as shown in Figure 4(b), the lid plate 62 has a generally U-shaped appearance with both ends bent at right angles, with a protrusion 62A protruding inwardly provided at the center of one end and a through hole 62B provided at the center of the other end.

[0030] 4(c), the side panel 20-3 at one end located directly below the exhaust port 20B of the main body 20 is provided with a slit 20C, which is a substantially rectangular hole for engaging the protrusion 62A of the lid plate 62, and the side panel 20-2 at the other end is provided with a screw hole 20D (see FIG. 4(b)) at a position directly below the exhaust port 20B. The position of this screw hole 20D is set at a position that overlaps with the through hole 62B of the lid plate 62 when the protrusion 62A of the lid plate 62 is inserted into the slit 20C of the main body 20, as shown in FIG.

[0031] 4(b), the lid plate 62 can be attached and fixed in a position that blocks the exhaust port 20B by screwing in the hand screw HS in an overlapping state. In this embodiment, the hand screw HS is used both when fixing the base plate PL to the bottom surface of the main body 20 in the usage state and when fixing the lid plate 62 to the cover member 60 in the storage state, thereby reducing the number of parts. In addition, because the same hand screw HS is used in both the usage state and the storage state, the screw HS is always fixed to the main body 20, which has the advantage of preventing the screw HS from being lost.

[0032] Fig. 5(a) is a diagram showing the configuration of the bottom surface of the main body 20 shown in Fig. 4(a). Fig. 5(b) is a diagram showing a state in which the bottom plate 20T of the bottom surface of the main body 20 shown in Fig. 5(a) has been slightly slid backward. In Figs. 5(a) and 5(b), the illustration of the cover plate 62 is omitted.

[0033] As shown in Figures 5(a) and 5(b), in this embodiment, the bottom of the main body 20 may be configured to be removable. Specifically, the bottom plate 20T is a plate material that constitutes the bottom of the combustion chamber 22 described above, and is configured to be slidable by sandwiching from above and below the guide rails GL1 and GL2 that extend substantially horizontally from both ends of the main body 20 in the left-right direction X toward the center as shown in Figure 4(b). In this way, the bottom plate 20T is attached to the main body 20 so as to be slidable along the front-rear direction Y, and the bottom plate 20T can be removed from the main body 20 to facilitate maintenance such as cleaning.

[0034] 5(a) and 5(b), a bottom front plate 20X protrudes forward from the bottom of the main body 20, and a screw hole 20X-1 is provided in the plate 20X. The screw hole 20X-1 serves to fix the above-mentioned base plate PL with a hand screw HS.

[0035] As shown in FIG. 4(b), the upper part of the rear panel 20-4 of the main body 20 is provided with a substantially rectangular fixing hole 20E for attaching a detachable lever 70, which will be described later.

[0036] Fig. 6(a) is a diagram showing a state in which the cover member 60 in the stored state has been slid to an upper rotatable position P2. In the partially enlarged view shown in part of Fig. 6(a), the stored position P1, i.e., the position of the cover member 60 in the stored state, is indicated by a dashed line.

[0037] As shown in FIG. 6(a), the cover member 60 has long holes 60H-1, 60H-2 (see FIG. 7(a)) on both sides of the lower end side, and the pivotal support parts AX-1, AX-2 provided on both sides of the lower end of the main body 20 engage with the long holes 60H-1, 60H-2. As a result, the cover member 60 is configured to be slidable in the vertical direction Z between the storage position P1 shown by the dashed line in the partial enlarged view shown in FIG. 6(a) and the rotatable position P2 shown by the solid line. In the storage position P1 shown by the dashed line in FIG. 6(a), the cover member 60 is supported via the pivotal support parts AX-1, AX-2 so that the rotational movement is restricted by the lower end part 60T of the cover member 60 abutting against the bottom side front panel 20W of the main body 20 located directly below the fire opening 20A, and the cover member 60 is supported so as to be movable only in the vertical direction Z. The bottom side front panel 20W is the part of the front panel 20-1 located below the fire opening 20A. On the other hand, in the partially enlarged view of Figure 6(a), at the rotational position P2 indicated by the solid line, the gap between the lower end 60T of the cover member 60 and the bottom side front panel 20W is large, so that the cover member 60 can be rotated forward to the wood insertion position P3 shown in Figure 6(b).

[0038] With the above-described configuration, the cover member 60 can be displaced between the storage position P1 and the timber input position P3. In this embodiment, the cover member 60 is configured to rotate, for example, 60° forward from the storage position P1 to the timber input position P3. This allows the cover member 60 to be held in a state inclined at 60° with respect to the main body 20 at the timber input position P3, making it easier to input timber into the cover member 60.

[0039] Here, Fig. 7(a) is a diagram showing the configuration when viewed from the opposite side of the timber input position P3 shown in Fig. 6(b), and Fig. 7(b) is a diagram showing a schematic cross-sectional configuration when cut along line BB shown in Fig. 7(a).

[0040] As shown in Figures 7(a) and 7(b), a slit-shaped fixing hole 60S is provided in the upper end portion of the side surface of the cover member 60 along the longitudinal direction of the cover member 60. Then, as shown by the dashed line in Figure 7(b), the protrusion 62A of the lid plate 62 is inserted into this fixing hole 60S while holding the lid plate 62 in an inclined state, and the lid plate 62 is placed over the cover member 60 as shown by the dashed line in Figure 7(b). This allows the lid plate 62 to be attached to the cover member 60 in a positioned state.

[0041] FIG. 8(a) is a diagram showing the configuration of the tip side of the detachable lever 70. FIG. 8(b) is a diagram showing the configuration of the detachable lever 70 in a plan view. As shown in FIG. 8(a) and FIG. 8(b), the detachable lever 70 has an engagement portion 72 at its tip. This engagement portion 72 has a first claw 74 whose central portion is bent upward at a right angle, and second claws 76A and 76B which are bent downward at a right angle on both sides of the first claw 74. In addition, a long hole 70H is provided in the central portion of the detachable lever 70. This detachable lever 70 is a tool used when removing or attaching the above-mentioned grill net 40 from the expansion cover 50, and the attachment and detachment work can be easily performed by engaging the engagement portion 72 with the grill net 40.

[0042] Here, a method of attaching the detachable lever 70 to the main body 20 will be described with reference to Figures 9(a) to 9(c). Figure 9(a) is a diagram showing a state in which the detachable lever 70 is attached to the main body 20. Figure 9(b) is a diagram showing a state in which the tip of the detachable lever 70 is inserted into the fixing hole 20E of the main body 20. Figure 9(c) is a diagram showing a state in which the detachable lever 70 has been rotated downward from the state shown in Figure 9(b).

[0043] As shown in Fig. 9(a) to Fig. 9(c), the removable lever 70 is inserted into the fixing hole 20E of the main body 20 with the engaging portion 72 tilted downward in order to insert the first claw 74 of the removable lever 70 into the fixing hole 20E of the main body 20 (see Fig. 9(b)). Then, with the removable lever 70 inserted into the fixing hole 20E, the lever 70 is rotated downward (see Fig. 9(c)). As a result, the first claw 74 and the second claws 76A, 76B engage with the fixing hole 20E provided in the upper part of the back panel 20-4 of the main body 20, and the removable lever 70 can be detachably attached to the main body 20 with the removable lever 70 protruding backward from the main body 20. When removing the grill 40, the removable lever 70 can be removed from the main body 20 and the grill 40 can be removed.

[0044] In addition, cooking utensils such as tongs may be hung on the detachable lever 70 with the detachable lever 70 attached to the fixing hole 20E of the main body 20. In this case, depending on the shape of the tongs, the tongs may be inserted from above into the long hole 70H of the detachable lever 70, or the tongs may be hung so as to straddle the detachable lever 70. This makes it possible to secure a place to put the tongs when cooking.

[0045] As another method of using the detachable lever 70, it is also possible to lift the main body 20 via the detachable lever 70 while the detachable lever 70 is attached to the fixing hole 20E of the main body 20. In this case, the main body 20 can be lifted and moved via the detachable lever 70 even when the main body 20 is in a high temperature state.

[0046] According to the combustion device 10 of this embodiment, the cover member 60 is configured to be displaceable between a wood input position P3 protruding from the main body 20 for inputting wood into the fire opening 20A, and a storage position P1 displaced toward the main body 20 from the wood input position P3 to cover the fire opening 20A. Therefore, by rotating (displacing) the cover member 60 to the storage position P1, the protruding length of the cover member 60 protruding from the main body 20 can be reduced, making the device 10 more compact, and making it easier to transport the device.

[0047] In this embodiment, the support plates 51-54, grill 40, ventilation spacer 64, and base plate PL constituting extension cover 50 are formed to have a size that allows them to be stored within main body 20 in the stored state shown in Fig. 4(a). Therefore, the above-mentioned members 51-54, 40, 64, and PL can be stored within main body 20 in the stored state.

[0048] The present invention can be implemented in various forms that include improvements, modifications, or variations based on the knowledge of a person skilled in the art without departing from the spirit of the present invention. In addition, the present invention can be implemented in a form in which any of the invention-specific features are replaced with other technologies within the scope of the same action or effect. [Explanation of symbols]

[0049] 10 Combustion equipment 20 Main unit 20A fire pit 20B Exhaust port 22 Combustion chamber 40 Grilling net (cooking equipment) 50 Extension cover (support part) 60 Cover member 62 Lid cover 70 Detachable lever PL Base Plate X Left / right direction Y Front-rear direction Z vertical direction

Claims

1. A combustion device for burning wood, comprising: A main body provided with a combustion chamber for burning wood, a fire opening for feeding wood into the combustion chamber, and an exhaust port for exhausting combustion gas generated in the combustion chamber; A combustion tube configured to be insertable into the main body; A cover member attached to the main body so as to be displaceable between a wood insertion position protruding from the main body for inserting wood into the fire opening and a storage position displaced toward the main body from the wood insertion position to cover the fire opening; Equipped with The combustion cylinder is detachably attached to a preset position by abutting against a protrusion provided inside the main body when inserted into the main body. Combustion device.

2. The wood insertion position is a position where the cover member is inclined with respect to the main body. The combustion device of claim 1 .

3. A support portion is provided that is configured to surround the exhaust port and expand upward, and is configured so that a cooking utensil larger than the exhaust port can be placed thereon. The combustion device of claim 1 .

4. The main body is provided with an air vent at a position adjacent to the combustion cylinder when the combustion cylinder is attached to the predetermined position, a gap is provided in the combustion cylinder at a position adjacent to the air vent when the combustion cylinder is attached to the predetermined position, for supplying outside air into the combustion cylinder; The combustion device of claim 1 .

5. The main body is provided with an air vent at a position adjacent to the combustion cylinder when the combustion cylinder is attached to the predetermined position, The combustion cylinder is configured in a substantially rectangular frame shape in a plan view, and gaps are provided at opposing corners for introducing outside air introduced through the air vent into the combustion cylinder. The combustion device of claim 1 .

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