Movable combined type large-end firewood stove

Abstract

The utility model provides a movable combined type large-end firewood stove. A stove body is provided with a hearth, an ash falling chamber and a detachable large-end stove frame. The hearth is a cylindrical basin body, and a frame-type or tray-type large-end furnace frame is erected above an opening of the hearth; a furnace door and a smoke exhaust pipe are arranged on the side wall of the hearth, an ash falling chamber is welded to the bottom face of a bottom plate of the hearth, fire bars are arranged in the center of the bottom plate of the hearth, and an inner cavity of the hearth is communicated with an inner cavity of the ash falling chamber through gaps of the fire bars. An ash discharge door and a fan butt joint pipe are arranged on the side wall of the ash falling chamber; the outer side of the side wall of the hearth is provided with a group of supporting legs which obliquely extend downwards and support the whole furnace body; a circle of anti-scalding partition plate is erected on the periphery of the circumferential side wall of the hearth of the furnace body. The firewood stove is provided with the detachable large-end stove frame, small cookware can be erected, large cookware can also be erected, supporting is stable when the large cookware is erected, and the large cookware is not prone to tipping over. In addition, an anti-scald partition plate is arranged on the periphery of the hearth of the firewood furnace, so that the firewood is prevented from being scalded by the high-temperature side wall of the hearth when firewood is added into the hearth.

Description

Technical Field

[0001] This utility model relates to a portable wood-burning stove, specifically a portable modular wood-burning stove, belonging to the field of household stove technology. Background Technology

[0002] Most portable wood-burning stoves on the market today have a one-piece structure, meaning the stove frame, firebox, and ash chamber are completely integrated from top to bottom. The upper edge of the firebox serves as the frame, or a ring-shaped tray is welded to the upper edge of the firebox. These frames generally have a small outward extension. To maintain portability, portable wood-burning stoves are usually not made too large, and their firebox and the integrated frame are also relatively small, only able to support small pots that match the size of the firebox's upper edge. When larger pots need to be placed, the frame is often too small, leading to instability and potential tipping accidents. However, directly increasing the size of the frame would result in an overly bulky stove, making it inconvenient to move or carry. Utility Model Content

[0003] The purpose of this utility model is to provide a portable, modular wood-burning stove with a detachable stove frame that can hold both small and large pots. The stove frame and the firebox are detachable, making it easy to move and carry.

[0004] The specific technical solution adopted in this utility model is as follows:

[0005] A movable, modular wood-burning stove, the stove body of which is made of heat-resistant metal material, comprises three main parts: a furnace chamber, an ash collection chamber, and a detachable large-head stove frame. The furnace chamber is a cylindrical basin, with a bottom plate sealing the bottom surface. The top surface of the furnace chamber is open, with an outward-flaring circular support edge along the edge of the opening. A set of evenly distributed annular connecting holes are provided on the circular support edge. An outward-flaring and upward-raising annular stove frame is supported above the open furnace chamber via the circular support edge. The stove frame can be a frame-type stove frame with open sides or a tray-type stove frame with closed sides. The lower part of the stove frame is supported on the circular support edge of the furnace chamber and locked in place by threaded fasteners passing through the connecting holes of the circular support edge. The front side wall of the furnace is equipped with a furnace door that can be rotated outward. The rear side wall of the furnace is connected to a flue pipe that communicates with the inner cavity of the furnace and extends outward and upward. The bottom plate of the furnace is fixedly welded to the bottom of the furnace with an ash collection chamber. The bottom plate of the furnace has an opening in the center and a grid-like furnace bar is installed in the opening. The inner cavity of the furnace is connected to the inner cavity of the ash collection chamber through the gaps in the furnace bar. The front side wall of the ash collection chamber is equipped with an ash discharge door that can be rotated outward. The side wall of the ash collection chamber is also equipped with a fan connecting pipe that communicates with the inner cavity of the ash collection chamber and extends horizontally outward. A set of support legs that are evenly distributed around the circumference of the furnace and extend downward are provided on the lower outer side wall of the furnace. The support legs support the entire furnace body and raise the bottom of the ash collection chamber above the ground.

[0006] When the furnace frame adopts a frame-type furnace frame with open sides, the furnace frame is an inverted frustum-shaped frame that is larger at the top and smaller at the bottom. The frame is welded together by an upper circular frame, a lower circular frame, and a set of diagonal connecting rods evenly distributed between the upper and lower circular frames. The diameter of the lower circular frame is smaller than the diameter of the furnace opening, and the diameter of the upper circular frame is larger than the diameter of the furnace opening. Each diagonal connecting rod of the furnace frame is also welded with a vertically extending screw rod in the middle of the rod body. Each vertical screw rod is equipped with a pair of locking nuts. When the frame-type furnace frame is installed on the circular support edge of the furnace, the vertical screw rod of the furnace frame is inserted into the connecting hole of the circular support edge of the furnace and locked and fixed from the upper and lower sides of the circular support edge by the two locking nuts respectively.

[0007] When the large-head furnace frame adopts a tray-type large-head furnace frame with four sides closed, the large-head furnace frame has a vertical cylinder with a diameter larger than the diameter of the furnace opening. The bottom surface of the vertical cylinder has a concave flat bottom ring. The flat bottom ring has a set of evenly distributed annular connecting holes near the inner ring. The front side wall of the vertical cylinder has a flame observation door that can be rotated outward and opened. The rear side wall of the vertical cylinder has an upper exhaust pipe that communicates with the inner cavity of the vertical cylinder and extends outward and upward. When the tray-type large-head furnace frame is installed on the circular support edge of the furnace, the connecting holes of the flat bottom ring of the large-head furnace frame are vertically aligned with the connecting holes of the circular support edge of the furnace. Bolts pass through the corresponding upper and lower connecting holes and are connected to lock nuts for locking and fixing. The upper exhaust pipe of the large-head furnace frame and the exhaust pipe of the furnace do not interfere with each other in spatial position.

[0008] The furnace body has a set of radially extending studs welded to the outer perimeter of the furnace chamber's circumferential sidewall. A ring of anti-scalding baffles is installed on the outer perimeter of the furnace chamber's circumferential sidewalls through the studs and matching clamping nuts. The anti-scalding baffles have a break at the position corresponding to the furnace door and a slot at the position corresponding to the exhaust pipe.

[0009] The advantages of this wood-burning stove are as follows: It features a detachable large-headed stove frame. When the frame is installed above the open end of the firebox, large pots can be supported. When the frame is removed, small pots can be placed directly on the open end and the circular support rim. Therefore, this modular wood-burning stove can support both large and small pots, and it provides stable support when supporting large pots, reducing the risk of tipping over during use. Furthermore, the stove frame can be detached from the firebox, reducing its size and making it easier to move and carry. The stove also features a heat-resistant baffle on the outer side wall of the firebox to prevent burns from accidental contact with the hot side wall when adding firewood. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the wood-burning stove when a frame-type large-head stove frame is used.

[0011] Figure 2 for Figure 1 Front view.

[0012] Figure 3 This is a three-dimensional structural diagram of the furnace and ash collection chamber of this wood-burning stove.

[0013] Figure 4 This is a three-dimensional structural diagram of a frame-type large-head furnace frame.

[0014] Figure 5 This is a three-dimensional structural diagram of a tray-type large-head furnace frame.

[0015] Figure 6This is a three-dimensional structural diagram of the wood-burning stove when a tray-type large-head stove frame is used.

[0016] Figure 7 for Figure 6 Front view.

[0017] Figure 8 for Figure 6 Top view.

[0018] Figure 9 for Figure 3 A schematic diagram of the three-dimensional structure after adding the anti-scalding partition.

[0019] Figure 10 A three-dimensional structural diagram of the anti-scalding partition.

[0020] In the diagram: 1-furnace chamber, 1.1-circular support edge, 1.2-stud support rod, 1.3-horizontal support plate, 2-ash chamber, 3-large-head furnace frame, 3.1-upper circular frame, 3.2-lower circular frame, 3.3-diagonal connecting rod, 3.4-vertical screw rod, 3.5-vertical cylinder, 3.6-flat bottom ring, 3.7-flame observation door, 3.8-upper exhaust pipe, 4-locking nut, 5-furnace door, 5.1-furnace door handle, 6-exhaust pipe, 7-furnace bars, 8-ash discharge door, 8.1-ash discharge door handle, 9-fan connecting pipe, 10-support leg, 11-clamping nut, 12-anti-scalding partition, 13-swivel caster, 14-bolt. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments and accompanying drawings. In the description of the present invention, the directional terms "front," "rear," "left," "right," "up," and "down" are based on the accompanying drawings. Figure 1 and Figure 6 The orientation or positional relationship shown is defined only for the convenience of describing this utility model, and does not refer to a specific orientation that the device or component must have, and should not be regarded as a limitation of this utility model.

[0022] like Figure 1-8As shown, the stove body is made of heat-resistant metal material and consists of three main parts: the furnace chamber 1, the ash collection chamber 2, and the detachable large-head stove frame 3. The furnace chamber 1 is a cylindrical basin with a bottom plate for sealing. The top of the furnace chamber 1 is open, and an outward-expanding circular support 1.1 is provided along the edge of the open. A set of evenly distributed annular connecting holes are provided on the circular support 1.1. An outward-expanding and upward-raising annular stove frame 3 is supported above the open furnace chamber 1 via the circular support 1.1. The stove frame 3 can be a frame-type stove frame 3 with open sides or a tray-type stove frame 3 with closed sides. The lower part of the stove frame 3 is supported on the circular support 1.1 of the furnace chamber 1 and locked in place by threaded fasteners that pass through the connecting holes of the circular support 1.1. The front side wall is provided with a furnace door 5 that can be rotated outward. The rear side wall of the furnace chamber 1 is connected to a flue pipe 6 that communicates with the inner cavity of the furnace chamber 1 and extends outward and upward. The bottom plate of the furnace chamber 1 is fixedly welded to the bottom of the furnace chamber 1. The bottom plate of the furnace chamber 1 has an opening in the center and a grid-like furnace bar 7 is installed in the opening. The inner cavity of the furnace chamber 1 is connected to the inner cavity of the ash chamber 2 through the gaps of the furnace bar 7. The front side wall of the ash chamber 2 is provided with an ash discharge door 8 that can be rotated outward. The side wall of the ash chamber 2 is also provided with a fan connecting pipe 9 that communicates with the inner cavity of the ash chamber 2 and extends horizontally outward on the side of the ash discharge door 8. A set of support legs 10 is provided on the lower outer side of the side wall of the furnace chamber 1, which are evenly distributed around the circumference of the furnace chamber 1 and extend downward. The support legs 10 support the entire furnace body and make the bottom of the ash chamber 2 high above the ground.

[0023] like Figure 1-4 As shown, when the large-head furnace frame 3 adopts a frame-type large-head furnace frame with open sides, the large-head furnace frame 3 is an inverted frustum-shaped frame that is larger at the top and smaller at the bottom. The frame is welded together by an upper circular frame 3.1, a lower circular frame 3.2, and a set of diagonal connecting rods 3.3 that are evenly distributed in a ring between the upper circular frame 3.1 and the lower circular frame 3.2. The diameter of the lower circular frame 3.2 is smaller than the diameter of the opening of the furnace chamber 1, and the diameter of the upper circular frame 3.1 is larger than the diameter of the opening of the furnace chamber 1. The large-head furnace frame 3 also has vertically extending vertical screws 3.4 welded to the middle of each diagonal connecting rod 3.3. Each vertical screw 3.4 is equipped with a pair of locking nuts 4. When the frame-type large-head furnace frame 3 is installed on the circular support 1.1 of the furnace chamber 1, the vertical screws 3.4 of the large-head furnace frame 3 are inserted into the connecting holes of the circular support 1.1 of the furnace chamber 1 and locked and fixed from the upper and lower sides of the circular support 1.1 by the two locking nuts 4 respectively. The frame-type large-head furnace frame 3 allows the flame to be exposed, making it easy to see the combustion of the flame. However, the flame is not concentrated enough and is easily disturbed by the wind.

[0024] like Figure 5-8As shown, when the large-head furnace frame 3 adopts a tray-type large-head furnace frame 3 with four sides closed, the large-head furnace frame 3 is provided with a vertical cylinder 3.5. The diameter of the vertical cylinder 3.5 is larger than the diameter of the open end of the furnace chamber 1. The bottom surface of the vertical cylinder 3.5 is provided with an inwardly tapering flat bottom ring 3.6. The flat bottom ring 3.6 is provided with a set of annularly distributed connecting holes near the inner ring. The front side wall of the vertical cylinder 3.5 is provided with a flame observation door 3.7 that can be rotated outward and opened. The rear side wall of the vertical cylinder 3.5 is provided with a flame observation door 3.7. An upper exhaust pipe 3.8 is provided, which communicates with the inner cavity of the vertical cylinder 3.5 and extends outward and upward. When the tray-type large-head furnace frame 3 is installed on the circular support edge 1.1 of the furnace chamber 1, the connecting holes of the flat bottom ring 3.6 of the large-head furnace frame 3 and the connecting holes of the circular support edge 1.1 of the furnace chamber 1 are vertically aligned, and bolts 14 are provided to pass through the corresponding connecting holes and connect with locking nuts 4 for locking and fixing. The upper exhaust pipe 3.8 of the large-head furnace frame 3 and the exhaust pipe 6 of the furnace chamber 1 do not interfere with each other in spatial position. At this time, the exhaust pipe 6 of the furnace chamber 1 can be sealed with a sealing plate, and only the upper exhaust pipe 3.8 of the large-head furnace frame 3 needs to be used. Using the tray-type large-head furnace frame 3 can seal the flame inside, making the flame more concentrated and not affected by wind, but it is necessary to open the flame observation door 3.7 on the side wall to observe the flame.

[0025] like Figure 9-10 As shown, a set of radially extending studs 1.2 are welded to the outer perimeter of the furnace chamber 1. A ring of anti-scalding baffles 12 is then mounted around the outer perimeter of the furnace chamber 1 via the studs 1.2 and matching clamping nuts 11. The anti-scalding baffles 12 have a cut at the position corresponding to the furnace door 5 and a slot at the position corresponding to the exhaust pipe 6. Adding the anti-scalding baffles 12 prevents accidental burns caused by touching the high-temperature sidewalls of the furnace chamber 1 when adding firewood. Furthermore, the anti-scalding baffles 12 are made of perforated thin steel plates to allow for rapid heat dissipation from the furnace chamber 1.

[0026] Furthermore, the lower end of the support leg 10 is equipped with a lockable universal caster 13 to facilitate the movement and locking of the entire furnace body.

[0027] Furthermore, the left side of the furnace door 5 is hinged to the side wall of the furnace chamber 1, allowing the furnace door 5 to rotate outward to the left. A furnace door handle 5.1 is also provided on the right side of the outer wall of the furnace door 5. Even further, a horizontal support plate 1.3 extending outward is welded to the front side wall of the furnace chamber 1 at a position corresponding to below the furnace door 5. When the furnace door 5 is opened and firewood is placed inside the furnace chamber 1 for burning, the horizontal support plate 1.3 can support the rear end of long strips of firewood.

[0028] Furthermore, the left side of the ash discharge door 8 is hinged to the side wall of the ash chamber 2, so that the ash discharge door 8 can be rotated to the left and opened. The right side of the outer wall of the ash discharge door 8 is also provided with an ash discharge door handle 8.1.

[0029] When in use, the large-head stove frame 3 is detachable. When a large pot is needed, the large-head stove frame 3 is assembled and installed above the opening of the furnace chamber 1, using the large-head stove frame 3 to support the large pot. When a small pot is needed, the large-head stove frame 3 is removed from above the furnace chamber 1, using the opening of the furnace chamber 1 and the circular support 1.1 to support the small pot. When the stove is ignited, firewood is inserted into the inner cavity of the furnace chamber 1 through the stove door 5 and burned. A blower connected to the blower connection pipe 9 blows air from the bottom into the furnace chamber 1 to aid combustion. The ash from the burning firewood falls through the gaps in the grate bars 7 into the ash collection chamber 2, and is discharged through the ash discharge door 8 after combustion is complete. The stove body's support legs 10 are equipped with lockable universal casters 13, allowing for easy movement and locking of the stove body. When not in use, the large-head stove frame 3 can be separated from the furnace chamber 1, reducing its size for easy transport and movement.

[0030] The above illustrations are merely typical embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable, modular wood-burning stove, characterized in that: The stove body is made of heat-resistant metal material and consists of three main parts: a furnace chamber (1), an ash collection chamber (2), and a detachable large-head stove frame (3). The furnace chamber (1) is a cylindrical basin with a bottom plate for sealing. The top of the furnace chamber (1) is open and has an outwardly flared annular support (1.1) along its edge. The annular support (1.1) has a set of evenly distributed annular connecting holes. The furnace chamber (1) is connected by the annular support. A ring-shaped furnace frame (3) with outward extension and upward lifting is mounted above the open end of the furnace chamber (1). The furnace frame (3) is either a frame-type furnace frame (3) with open sides or a tray-type furnace frame (3) with closed sides. The lower part of the furnace frame (3) is supported on the ring-shaped furnace frame (1.1) of the furnace chamber (1) and locked and fixed by threaded fasteners that pass through the connecting holes of the ring-shaped furnace frame (1.1); the front side wall of the furnace chamber (1) The furnace is equipped with a furnace door (5) that can be rotated outwards. The rear side wall of the furnace chamber (1) is connected to a flue pipe (6) that communicates with the inner cavity of the furnace chamber (1) and extends outwards and upwards. An ash collection chamber (2) is fixedly welded to the bottom surface of the bottom plate of the furnace chamber (1) below the furnace chamber (1). An opening is provided in the center of the bottom plate of the furnace chamber (1), and a grid-like furnace bar (7) is installed in the opening. The inner cavity of the furnace chamber (1) is connected to the inner cavity of the ash collection chamber (2) through the gaps in the furnace bar (7). 2) The front side wall is provided with an ash discharge door (8) that can be rotated outward. The side wall of the ash chamber (2) is also provided with a fan connecting pipe (9) that communicates with the inner cavity of the ash chamber (2) and extends horizontally outward. A set of support legs (10) is provided at the lower position of the outer side wall of the furnace (1) along the circumference of the furnace (1) and extending downward. The support legs (10) support the entire furnace body and make the bottom of the ash chamber (2) higher than the ground.

2. The movable combined wood-burning stove according to claim 1, characterized in that: When the large-head furnace frame (3) adopts a frame-type large-head furnace frame (3) with open sides, the large-head furnace frame (3) is an inverted frustum-shaped frame with a larger top and a smaller bottom. The frame is welded together by an upper circular frame (3.1), a lower circular frame (3.2), and a set of diagonal connecting rods (3.3) evenly distributed in a ring between the upper circular frame (3.1) and the lower circular frame (3.2). The diameter of the lower circular frame (3.2) is smaller than the diameter of the furnace opening (1), and the diameter of the upper circular frame (3.1) is larger than the diameter of the furnace opening (1). Each of the inclined connecting rods (3.3) is also welded with a vertically extending screw (3.4) in the middle of the rod body. Each vertical screw (3.4) is equipped with a pair of locking nuts (4). When the frame-type large-head furnace frame (3) is installed on the circular support edge (1.1) of the furnace chamber (1), the vertical screw (3.4) of the large-head furnace frame (3) is inserted into the connecting hole of the circular support edge (1.1) of the furnace chamber (1) and locked and fixed from the upper and lower sides of the circular support edge (1.1) by the two locking nuts (4).

3. The movable combined wood-burning stove according to claim 1, characterized in that: When the large-head furnace frame (3) adopts a tray-type large-head furnace frame (3) with four sides closed, the large-head furnace frame (3) is provided with a vertical cylinder (3.5). The diameter of the vertical cylinder (3.5) is larger than the diameter of the open end of the furnace chamber (1). The bottom surface of the vertical cylinder (3.5) is provided with a ring of inwardly tapering flat bottom ring (3.6). The flat bottom ring (3.6) is provided with a set of evenly distributed annular connecting holes near the inner ring. The front side wall of the vertical cylinder (3.5) is provided with a flame observation door (3.7) that can be rotated outwards. The rear side wall of the vertical cylinder (3.5) is provided with a flame observation door (3.7) that is connected to the vertical cylinder. The upper exhaust pipe (3.8) is connected to the inner cavity of the cylinder (3.5) and extends outward and upward; when the tray-type large-head furnace frame (3) is installed on the circular support edge (1.1) of the furnace chamber (1), the connecting hole of the flat bottom ring (3.6) of the large-head furnace frame (3) is vertically aligned with the connecting hole of the circular support edge (1.1) of the furnace chamber (1), and bolts (14) are provided to pass through the corresponding connecting holes and connect with locking nuts (4) for locking and fixing. The upper exhaust pipe (3.8) of the large-head furnace frame (3) and the exhaust pipe (6) of the furnace chamber (1) do not interfere with each other in spatial position.

4. The movable combined wood-burning stove according to claim 1, characterized in that: The furnace body has a set of radially extending studs (1.2) welded on the outer periphery of the circumferential side wall of the furnace chamber (1), and a ring of anti-scalding baffles (12) is installed on the outer periphery of the circumferential side wall of the furnace chamber (1) by means of the studs (1.2) and the matching clamping nuts (11). The anti-scalding baffles (12) have a break at the position corresponding to the furnace door (5) and a slot at the position corresponding to the exhaust pipe (6).

5. The movable combined wood-burning stove according to claim 4, characterized in that: The heat-resistant partition (12) is made of porous thin steel plate.

6. The movable combined wood-burning stove according to claim 1, characterized in that: The lower end of the support leg (10) is equipped with a lockable swivel caster (13).

7. The movable combined wood-burning stove according to claim 1, characterized in that: The left side of the furnace door (5) is hinged to the side wall of the furnace chamber (1) by a hinge, so that the furnace door (5) can be rotated to the left and opened. The right side of the outer wall of the furnace door (5) is also provided with a furnace door handle (5.1).

8. The movable combined wood-burning stove according to claim 7, characterized in that: The front side wall of the furnace (1) is also welded with an outwardly extending horizontal support plate (1.3) at the position below the corresponding furnace door.

9. The movable combined wood-burning stove according to claim 1, characterized in that: The left side of the ash discharge door (8) is hinged to the side wall of the ash chamber (2) so that the ash discharge door (8) can be rotated to the left and opened. The right side of the outer wall of the ash discharge door (8) is also provided with an ash discharge door handle (8.1).

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