A stove

Abstract

The present invention belongs to the technical field of combustion heating furnaces, and discloses a furnace, including a furnace body, an air intake channel and an exhaust channel. When the furnace body is used in a sheltered space, the air intake end of the air intake channel is connected to the outside of the sheltered space, and the connecting end is connected to the air intake port of the furnace body, so that air can be introduced into the furnace body from outside the sheltered space, and the connecting end of the exhaust channel is connected to the exhaust port of the furnace body, and the exhaust end is connected to the outside of the sheltered space, so that the exhaust gas in the furnace body can be discharged into the sheltered space. In the present invention, on the basis of the furnace body, the air intake channel and the exhaust channel cooperate, so that when the furnace is used in a sheltered space such as a tent, air can be introduced from the outside and smoke and the like generated after combustion can be discharged to the outside, without consuming oxygen in the sheltered space, and avoiding the problem of smoke and the like leaking in the sheltered space, so that the user can use the furnace safely in the sheltered space.

Description

Technical Field

[0001] The invention relates to the technical field of combustion heating furnaces, in particular to a furnace. Background Art

[0002] As a widely used cooking appliance, stoves are increasingly used by users in outdoor activities such as camping and exploring. Because in outdoor activities such as camping and exploring, users need to stay in sheltered spaces such as tents, so stoves are required to be safe in addition to being portable. Existing stoves, when used in sheltered spaces such as tents in the wild, need to consume oxygen in the tent, and the toxic gases generated during the combustion of fuel are easily leaked in the tent, bringing great danger to users. Summary of the invention

[0003] An object of the present invention is to provide a stove that can be used safely by a user in a sheltered space.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A furnace comprises a furnace body, an air inlet passage and an exhaust passage;

[0006] When the furnace body is used in a shielded space, the air inlet end of the air inlet channel is connected to the outside of the shielded space, and the connecting end is connected to the air inlet port of the furnace body, so that air can be introduced into the furnace body from outside the shielded space. The connecting end of the exhaust channel is connected to the exhaust port of the furnace body, and the exhaust end is connected to the outside of the shielded space, so that exhaust gas in the furnace body can be discharged from the shielded space.

[0007] Preferably, one or more air supply areas are provided in the furnace body, and the air supply areas are connected to the connecting end of the air inlet channel;

[0008] When the furnace body is in use, the air entering the furnace body from the air inlet passes through the air replenishing area and then is discharged from the exhaust port.

[0009] Preferably, there are two air supply zones, namely a first air supply zone and a second air supply zone. The air entering the furnace body from the air inlet passes through the first air supply zone and the second air supply zone in sequence and then is discharged from the exhaust port.

[0010] Preferably, the furnace door is arranged on the front side of the furnace body, the air inlet is arranged on the rear side of the furnace body, and an air guide plate is arranged in the furnace body to divide the interior of the furnace body into two upper and lower parts. The first air supply area is located on the front side of the lower part of the air guide plate, and the second air supply area is located on the rear side of the upper part of the air guide plate.

[0011] Preferably, the first air supplement area is connected to the connecting end of the air inlet channel through a first air supplement channel;

[0012] The first air supply channel includes an ash box and a first air supply pipe which are interconnected. The ash box is arranged at the bottom of the furnace body and is connected to the first air supply area through an opening at the bottom of the furnace body. One end of the first air supply pipe is connected to the connecting end of the air inlet channel, and the other end is connected to one side of the ash box. An ash tray is arranged at the bottom of the ash box, and the ash tray can open or close the opening at the bottom of the ash box.

[0013] Preferably, the second air supply area is connected to the connecting end of the air inlet channel through a second air supply channel;

[0014] The second air supply channel includes a plurality of second air supply pipes, one end of which is connected to the connecting end of the air inlet channel and the other end extends into the furnace body. The side wall of the second air supply pipe extending into the furnace body is provided with air holes.

[0015] Preferably, an air intake regulating device is provided on the furnace body, and the air intake regulating device can adjust the opening of the air intake port.

[0016] Preferably, the air intake regulating device comprises:

[0017] A sealing baffle, rotatably disposed inside the connecting end of the air inlet passage via a rotating shaft;

[0018] An adjusting rod extends from the front side of the furnace body to the rear side of the furnace body, is slidably connected to the furnace body, has an operating handle at one end, and is connected to the rotating shaft through a transmission assembly at the other end. When the adjusting rod slides, it can drive the sealing plate to rotate to adjust the opening of the air inlet.

[0019] Preferably, the first air supplement area is connected to the connecting end of the air inlet channel through a first air supplement channel;

[0020] The furnace body is provided with a gas supply regulating device, and the gas supply regulating device can adjust the opening of the communication port between the first gas supply channel and the furnace body.

[0021] Preferably, it further comprises two cover shells, which are rotatably connected to the furnace body and symmetrically arranged on the top of the furnace body;

[0022] When the two cover shells are buckled together, they can enclose the top of the furnace body to form a closed baking space.

[0023] Beneficial effects of the present invention:

[0024] On the basis of the furnace body, the air intake channel and the exhaust channel are coordinated so that when the stove is used in a sheltered space such as a tent, air can be introduced from the outside and the smoke generated after combustion can be discharged to the outside, without consuming the oxygen in the sheltered space and avoiding the problem of smoke and the like leaking in the sheltered space, so that users can use the stove safely in the sheltered space.

[0025] On the basis of the air inlet, two air supply areas are set in the furnace body, so that three ventilation and combustion assistance are carried out during the entire combustion process of the fuel inside the furnace body, effectively avoiding the generation of harmful gases caused by incomplete combustion of the fuel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a furnace in a shielded space according to an embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of a furnace according to an embodiment of the present invention;

[0028] Figure 3 is a front view of a furnace according to an embodiment of the present invention;

[0029] Figure 4 is a partial cross-sectional view of a furnace according to an embodiment of the present invention;

[0030] Figure 5 It is an exploded view of a part of the structure of the furnace according to an embodiment of the present invention;

[0031] Figure 6 is an exploded view of a partial structure of a furnace according to an embodiment of the present invention from another direction;

[0032] Figure 7 is a schematic structural diagram of a furnace in a retracted position according to an embodiment of the present invention;

[0033] Figure 8 is a schematic structural diagram of another direction when the furnace according to an embodiment of the present invention is folded;

[0034] Fig. 9 is a schematic end view of the furnace according to an embodiment of the present invention when it is folded;

[0035] Fig.10 is a cross-sectional view of the air intake regulating device, the air supply regulating device and the ash tray in the furnace according to the embodiment of the present invention when they are fully opened;

[0036] Fig.11 is a cross-sectional view of the air intake regulating device, the air supply regulating device and the ash support in the furnace according to the embodiment of the present invention when they are partially opened;

[0037] Fig.12is a cross-sectional view of the air intake regulating device, the air supply regulating device and the ash tray in the furnace according to the embodiment of the present invention when they are completely closed;

[0038] Fig.13 is an exploded view of a furnace cylinder section and a flame retardant according to an embodiment of the present invention;

[0039] Fig.14 It is a structural schematic diagram of a furnace middle cylinder section and a flame retardant when they are sheathed together according to an embodiment of the present invention.

[0040] In the figure:

[0041] 1. furnace body; 11. air guide plate; 12. air intake regulating device; 121. sealing plate; 122. regulating rod; 13. air supply regulating device; 131. regulating plate; 132. pull rod; 14. furnace cover; 15. grill; 16. supporting legs; 17. fuel grate; 18. furnace door; 181. door handle; 1811. fork; 1812. gripping part;

[0042] 2. Air intake passage;

[0043] 3. Exhaust channel; 31. Cylinder; 311. Cylinder section; 32. Chimney protector; 33. Silicone protector; 34. Flame retardant; 35. Flow regulator;

[0044] 4. First air supply channel; 41. Ash box; 411. Ash tray; 42. First air supply pipe;

[0045] 5. Second air supply channel; 51. Second air supply pipe; 511. Air vent;

[0046] 6. Cover; 61. Handle. DETAILED DESCRIPTION

[0047] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0048] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0051] like Figure 1-Figure 14 As shown, the present invention provides a furnace, comprising a furnace body 1, an air inlet channel 2 and an exhaust channel 3. When the furnace body 1 is used in a shielded space, the air inlet end of the air inlet channel 2 is connected to the outside of the shielded space, and the connecting end is connected to the air inlet of the furnace body 1, so that air can be introduced from the outside of the shielded space into the furnace body 1, and the connecting end of the exhaust channel 3 is connected to the exhaust port of the furnace body 1, and the exhaust end is connected to the outside of the shielded space, so that the exhaust gas in the furnace body 1 can be discharged out of the shielded space.

[0052] In the present invention, on the basis of the furnace body 1, the air intake channel 2 and the exhaust channel 3 cooperate with each other, so that when the stove is used in a sheltered space such as a tent, air can be introduced from the outside and smoke generated after combustion can be discharged to the outside, without consuming oxygen in the sheltered space, and avoiding the problem of smoke and the like leaking in the sheltered space, so that the user can use the stove safely in the sheltered space.

[0053] Optionally, one or more air replenishment areas are provided in the furnace body 1, and the air replenishment areas are connected to the connection end of the air inlet channel 2. When the furnace body 1 is in use, the air entering the furnace body 1 from the air inlet passes through the air replenishment areas and then is discharged from the exhaust port. The above-mentioned air replenishment areas are provided so that most of the air can enter the furnace body 1 through the air inlet of the furnace body 1 to assist combustion, and the air can be replenished once or multiple times inside the furnace body 1, so that the fuel in the furnace body 1 burns more thoroughly.

[0054] Specifically, in this embodiment, two air supply areas are provided, namely, the first air supply area and the second air supply area. The air entering the furnace body 1 from the air inlet passes through the first air supply area and the second air supply area in sequence before being discharged from the exhaust port. The above arrangement enables most of the air to enter the furnace body 1 through the air inlet to assist combustion, and then to be supplemented with air in the first air supply area and then in the second air supply area on the air flow path inside the furnace body 1. After two air supplements, the fuel is burned more thoroughly, avoiding the generation of toxic gases such as carbon monoxide when the combustion is incomplete.

[0055] More specifically, Figure 2 , Figure 3 and Figure 4 As shown, the furnace door 18 is arranged at the front side of the furnace body 1, the air inlet is arranged at the rear side of the furnace body 1, and the exhaust port is arranged at the top of the furnace body 1 near the air inlet. An air guide plate 11 is arranged in the furnace body 1, and the air guide plate 11 is located between the air inlet and the exhaust port. The air inlet and the first air supply area are located on one side of the air guide plate 11, and the exhaust port and the second air supply area are located on the other side of the air guide plate 11. The first air supply area is located at the front side of the lower part of the air guide plate 11, and the second air supply area is located at the rear side of the upper part of the air guide plate 11. In addition to the air guiding function, the air guide plate 11 also has the function of blocking smoke to prevent smoke from flowing back from the exhaust channel 3.

[0056] The above arrangement divides the space inside the furnace body 1 into two parts, the upper part is smaller than the lower part, and the two parts are connected at the front side of the furnace body 1, so that the air entering from the air inlet of the lower part of the rear side of the furnace body 1 cooperates with the fuel combustion at the rear side of the furnace body 1. The combustion at this time is incomplete, and a large amount of carbon monoxide and black smoke are generated, and then flows horizontally to the front side of the furnace body 1 for the first air replenishment, where the second combustion is carried out, so that the carbon monoxide and the like generated by the first combustion are further consumed, and after the air is replenished in the first air replenishment area, it flows upward to the upper part of the furnace body 1, and then flows from the front side to the rear side of the furnace body 1, and the second air replenishment is carried out in the upper part of the rear side of the furnace body 1, so that the carbon monoxide and the like are consumed again, and after the air is replenished in the second air replenishment area, it enters the exhaust channel 3 from the exhaust port at the top of the rear side of the furnace body 1, so that the air performs a reciprocating cycle from back to front inside the furnace body 1.

[0057] Alternatively, if Figure 2 and Figure 3 As shown, the furnace body 1 is provided with an air intake regulating device 12, which can adjust the opening of the air intake port. The above arrangement enables the user to control the flow rate of the air intake in the air intake channel 2 by controlling the air intake regulating device 12.

[0058] Specifically, Figure 5 and Figure 6As shown, the air intake adjustment device 12 includes a sealing plate 121 and an adjustment rod 122. The sealing plate 121 is rotatably arranged inside the connection end of the air intake passage 2 through a rotating shaft, and the adjustment rod 122 extends from the front side of the furnace body 1 to the rear side of the furnace body 1, and is slidably connected to the furnace body 1, one end of which is connected to an operating handle, and the other end is connected to the rotating shaft through a transmission assembly. When the adjustment rod 122 slides, it can drive the sealing plate 121 to rotate to adjust the opening of the air intake port.

[0059] More specifically, the transmission assembly includes two transmission plates, one end of which is rotationally connected to the adjustment rod 122, and the other end is rotationally connected to one end of the other transmission plate, and the other end of the other transmission plate is rotationally connected to the rotating shaft. The user holds the operating handle at the front side of the furnace body 1 to pull out the adjustment rod 122, and the adjustment rod 122 slides along the front and rear direction of the furnace body 1, and drives the rotating shaft to rotate through the two transmission plates. When the rotating shaft rotates, the angle between the sealing plate 121 and the axis of the air inlet channel 2 is changed, thereby adjusting the opening of the air inlet. When the angle between the sealing plate 121 and the axis of the air inlet channel 2 is ninety degrees, the air inlet is completely closed, and when the angle between the sealing plate 121 and the axis of the air inlet channel 2 is zero degrees, the air inlet is fully open.

[0060] More specifically, Fig.12 As shown, a silicone sealing ring is provided at the edge of the sealing plate 121. When the angle between the sealing plate 121 and the axis of the air inlet passage 2 is ninety degrees, the silicone sealing ring abuts against the inner wall of the air inlet passage 2, and the air inlet is completely closed.

[0061] In this embodiment, if Fig.12 As shown, the first air replenishing zone is connected to the side of the sealing baffle 121 in the air inlet channel 2 facing away from the furnace body 1, and the second air replenishing zone is connected to the side of the sealing baffle 121 in the air inlet channel 2 facing the furnace body 1, so that when the sealing baffle 121 closes the air inlet, the second air replenishing zone cannot replenish air.

[0062] Alternatively, if Figure 5 and Figure 6 As shown, the first air supply area is connected to the connecting end of the air inlet channel 2 through the first air supply channel 4, and an air supply regulating device 13 is provided in the furnace body 1, and the air supply regulating device 13 can adjust the opening of the connecting port between the first air supply channel 4 and the furnace body 1. The above arrangement enables the air supply or air supply intensity of the first air supply area to be adjusted according to the needs of the user.

[0063] Specifically, Figure 5 and Figure 6As shown, the air supply regulating device 13 includes an adjusting plate 131 and a pull rod 132 which are connected to each other. The adjusting plate 131 can completely cover the connecting port between the first air supply channel 4 and the furnace body 1. The pull rod 132 extends from the front side of the furnace body 1, and the extended part is bent to form a curved structure, which is convenient for the user to pull.

[0064] More specifically, Figure 5 and Figure 6 As shown, the first air supply channel 4 includes an ash box 41 and a first air supply pipe 42 which are interconnected. The ash box 41 is arranged at the bottom of the furnace body 1 and is connected to the first air supply area through an opening at the bottom of the furnace body 1. One end of the first air supply pipe 42 is connected to the connection end of the air inlet channel 2, and the other end is connected to one side of the ash box 41. An ash tray 411 is arranged at the bottom of the ash box 41, and the ash tray 411 can open or close the opening at the bottom of the ash box 41. The above arrangement allows the ash in the furnace body 1 to be first introduced into the ash box 41 and then discharged by adjusting the ash tray 411.

[0065] Specifically, the ash tray 411 is rotatably set on the ash box 41, and a buckle is set on one side. A locking bolt that cooperates with the buckle is set on the ash box 41. When the buckle is clamped on the locking bolt, the locking bolt can be adjusted to fix the ash tray 411, thereby closing the opening at the bottom of the ash box 41. When the ash needs to be discharged, the locking bolt is loosened, the ash tray 411 is rotated, and the opening at the bottom of the ash box 41 is opened to discharge the ash.

[0066] Optionally, the second air supply area is connected to the connecting end of the air intake channel 2 through a second air supply channel 5, and the second air supply channel 5 includes a plurality of second air supply pipes 51, one end of the second air supply pipe 51 is connected to the connecting end of the air intake channel 2, and the other end extends into the furnace body 1, and an air hole 511 is provided on the side wall of the part of the second air supply pipe 51 extending into the furnace body 1.

[0067] In this embodiment, two second air supply pipes 51 are provided (the specific number can be set according to the specifications of the furnace body and the specific usage scenario, and is not limited to two), and multiple air holes 511 are opened on each air supply pipe, so that the air supply in the second air supply area is more uniform.

[0068] Specifically, Figure 5 As shown, the diameter of the second air supply pipe 51 is smaller than the diameter of the first air supply pipe 42 to control the air supply amount of the second air supply area.

[0069] Optionally, the stove of the present invention further comprises two covers 6, which are rotatably connected to the stove body 1 and symmetrically arranged on the top of the stove body 1. When the two covers 6 are buckled together, they can enclose a closed baking space on the top of the stove body 1, and pizza and other foods can be baked in the baking space, thereby increasing the use range of the stove. After the two covers 6 are symmetrically unfolded, the openings face upwards and can be used to place items, making the covers 6 more practical.

[0070] Specifically, Figure 7 , Figure 8 and Fig. 9 As shown, a handle 61 is provided at one end of the cover shell 6 away from the furnace body 1 , and when the two cover shells 6 are buckled together, the two handles 61 are close to each other, and the user can hold the two handles 61 with one hand to lift the furnace.

[0071] More specifically, a thermometer is provided on one of the housings 6 so that the temperature in the baking space can be monitored over time during the baking operation.

[0072] Optionally, a horizontal long hole is provided on the front side of the furnace body 1 , and a furnace cover 14 is inserted into the long hole. By pulling out the furnace cover 14 , the opening of the fire port on the top surface of the furnace body 1 can be adjusted.

[0073] Specifically, when the furnace cover 14 closes the fire mouth, a part of it is still located outside the furnace body 1. This part is provided with ribs, which then abut against the front side wall of the furnace body 1 to prevent the furnace cover 14 from sliding into the furnace body 1 as a whole. A handle is provided on the end face of the furnace cover 14 away from the furnace body 1 to facilitate the user's pulling and pulling operations.

[0074] More specifically, a grilling net 15 is provided on the fire port of the furnace body 1. When the furnace cover 14 is pulled to open the fire port, the grilling net 15 can be covered on the fire port, so that the furnace of the present invention can be used for barbecue.

[0075] Optionally, the bottom surface of the furnace body 1 is rotatably provided with four legs 16, two legs 16 are symmetrically arranged near the front side of the furnace body 1, and the other two legs 16 are symmetrically arranged near the rear side of the furnace body 1. The four legs 16 can support the furnace body 1 when unfolded, and are all close to the bottom surface of the furnace body 1 when buckled.

[0076] Specifically, Fig. 9 As shown, the bottom surface of the furnace body 1 is an arc-shaped surface, and the legs 16 are arc-shaped rods, which are adapted to the bottom surface of the furnace body 1, so that the legs 16 fit more closely to the furnace body 1 when buckled, so that the furnace occupies a smaller volume when folded.

[0077] Optionally, a mesh fuel grate 17 is mounted inside the furnace body 1. The fuel grate 17 is parallel to the horizontal plane when mounted, and fuel can be piled thereon.

[0078] Alternatively, if Figure 1 As shown, the exhaust passage 3 includes a barrel 31 and a chimney protector 32 sleeved on the outside of the barrel 31, the bottom end of the barrel 31 is connected to the exhaust port of the furnace body 1, the top end of the barrel 31 extends out of the shielded space and is connected to the outside, the chimney protector 32 and the barrel 31 are spaced apart to form a heat dissipation cavity, and the top end of the chimney protector 32 is sealed and connected to the barrel 31.

[0079] During installation, the chimney protector 32 can be installed on the component that penetrates the cylinder 31, such as the roof, the side wall of the house, the top of the tent, etc., so that the cylinder 31 is isolated from other components to prevent the cylinder 31 from being overheated and burning other components or causing a fire. The heat dissipation cavity helps to effectively insulate and dissipate heat. The top of the chimney protector 32 is sealed to the cylinder 31 to prevent rainwater or other debris from entering. Here, the chimney protector 32 can be made of a non-flammable material with fast heat dissipation, such as ceramics. Furthermore, in order to prevent dust and water, the top of the chimney protector 32 is set to an inclined surface, so that rainwater and debris can slide down along the inclined surface.

[0080] Specifically, the chimney protector 32 is connected to the outer wall material of the heat-sensitive shelter space such as a tent through a silicone protector 33 sleeved on the outside thereof, and a clamping member such as a bolt is provided on the silicone protector 33, and the tent tarpaulin can be clamped between the clamping member and the silicone protector 33. The silicone protector 33 is a ring sleeve made of silicone, which is a conventional setting in the art and will not be described in detail here.

[0081] More specifically, a plurality of ventilation holes are provided on the circumferential outer wall of the chimney protector 32, and the ventilation holes are connected to the heat dissipation cavity. The ventilation holes facilitate air circulation, and convection can be formed between the plurality of ventilation holes to facilitate heat dissipation. Here, there is no restriction on the location and number of the ventilation holes.

[0082] In this embodiment, the top of the chimney protector 32 is connected to the cylinder 31, and the bottom of the chimney protector 32 is provided with an opening connected to the heat dissipation cavity. The ventilation holes are concentrated on the outer wall away from the opening, and convection is formed between the ventilation holes and the opening. During installation, the end provided with the ventilation holes can be extended to the outside, and the end provided with the opening is located indoors. The wind entering the ventilation holes cools the cylinder 31 in the process of passing through the heat dissipation cavity.

[0083] Specifically, the chimney protector 32 can be welded to the cylinder body 31, or can be connected by screws, or can be clamped, which is not limited here.

[0084] More specifically, Fig.13 As shown, the barrel 31 is configured to be detachable in multiple sections 311, and the chimney protector 32 is welded to one of the sections 311, thereby ensuring the firmness of the chimney protector 32 and reducing the installation process.

[0085] Specifically, one end of the barrel segment 311 is provided with a flared opening, and adjacent barrel segments 311 are clamped together. The end of the barrel segment 311 away from the flared opening is provided with a chamfer for easy guidance. During installation, the chamfered end of the barrel segment 311 is inserted into the flared opening of another barrel segment 311. Since the inner diameter of the flared opening is equal to or slightly larger than the outer diameter of the barrel segment 311, the two barrel segments 311 are plugged and clamped.

[0086] More specifically, Fig.14 As shown, from bottom to top, the outer diameter of the main body of each barrel segment 311 and the outer diameter of the expanded opening gradually decrease, so that the expanded ends of multiple barrel segments 311 can be nested together from outside to inside when they are located on the same side.

[0087] More specifically, a hollow protrusion is provided at one end of the cylinder section 311 where the expansion is provided. The provision of the protrusion allows the outer wall of the cylinder body 31 to have a certain elasticity, so that the connection between the two cylinder sections 311 is tighter.

[0088] In this embodiment, a flame retardant 34 is provided at the top of the cylinder 31. The flame retardant 34 includes a steel mesh arranged circumferentially and an end cap arranged at the top of the steel mesh. The smoke after burning in the furnace body 1 can emerge from the small holes of the steel mesh, but the burning sparks will be extinguished when they encounter the steel mesh, so that the tent or the surrounding leaves and other flammable objects will not be ignited, which increases the safety performance of the use of the furnace. The end cap is provided to prevent rainwater or debris from entering the cylinder 31 from the top.

[0089] Specifically, the flame retardant 34 also includes a support body located at the lower end of the wire mesh, and the support body is connected to the cylinder 31, and the connection method can be a screw connection or a plug-in connection between the two cylinder sections 311, which is not limited here. A plurality of hanging rings are circumferentially arranged on the outer wall of the support body. When having a picnic, one end of the fixed rope can be connected to the hanging ring and the other end can be connected to the ground nail, or the fixed rope can be passed through the hanging ring and both ends of the fixed rope can be connected to the ground nail. The chimney can be fixed to keep it in a vertical state, which is convenient for smooth smoke exhaust and prevented from being blown down by the wind.

[0090] More specifically, a flow regulator 35 is provided on the cylinder 31 for adjusting the gas flow area in the cylinder 31. In order to facilitate manual adjustment, the flow regulator 35 is provided at the lower part of the cylinder 31, close to the furnace body 1. The flow regulator 35 includes a sealing plate rotatably provided in the cylinder 31 and an adjustment handle located outside the cylinder 31, and the adjustment handle is detachably connected to the sealing plate. The size of the sealing plate is adapted to the inner diameter of the cylinder 31. By rotating the adjustment handle, the sealing plate can be driven to rotate, thereby adjusting the opening degree of the sealing plate, controlling the flow area of ​​the flue gas, and thus adjusting the size of the flame and the burning speed.

[0091] In this embodiment, the adjustment handle includes a rod body and a gripping portion 1812 located at one end of the rod body, the rod body is connected to the sealing plate, and a clamping spring is sleeved on the rod body of the adjustment handle, and the clamping spring is clamped between the gripping portion 1812 and the cylinder 31. Due to the abutment of the clamping spring, when the gripping portion 1812 is rotated to drive the sealing plate to a certain position, it can be fixed at this position under the action of the force of the clamping spring. Of course, other methods can also be used to lock the adjustment handle, for example, when the gripping portion 1812 is rotated to drive the sealing plate to a certain position, the adjustment handle and the cylinder 31 are fixed by screws or pins.

[0092] Specifically, a mounting hole is provided on the cylinder 31, a pad column is provided at the mounting hole, the rod of the adjustment handle passes through the pad column, and the clamping spring is located in the pad column. The rod of the adjustment handle is connected to the sealing plate through a locking pin.

[0093] In this embodiment, the chimney, the flow regulator 35 and the flame retardant 34 can all be detached and placed in the inner cavity of the furnace body 1 for easy carrying.

[0094] Optionally, a furnace door 18 is detachably provided at the furnace opening on the front side of the furnace body 1, one end of the furnace door 18 is rotatably connected to the furnace body 1 through the cooperation of a screw and a nut, and the other end of the furnace door 18 is clamped to the furnace body 1 through a door handle 181. The furnace door 18 is detachably provided, which is convenient for replacement in case of failure, and prevents the furnace door 18 from being damaged and causing the entire furnace to be unusable.

[0095] Specifically, a first mounting hole is provided at one end of the furnace door 18, and a second mounting hole is correspondingly provided on the furnace body 1. The screw passes through the first mounting hole and the second mounting hole, and one end of the screw is limited by the head, and the other end of the screw is connected to the nut. When the screw and the nut are connected, they are not completely locked, so that the furnace door 18 has a certain rotation space.

[0096] More specifically, two first mounting holes and two second mounting holes are provided, and the two second mounting holes are located between the two first mounting holes.

[0097] Optionally, the door handle 181 includes a fork blade 1811 and a gripping portion 1812 arranged at one end of the fork blade 1811, one end of the fork blade 1811 is rotatably connected to the oven door 18, and a slot corresponding to the fork blade 1811 is provided on the oven body 1. When the oven door 18 is closed, the fork blade 1811 can be engaged with the slot to lock the oven door 18.

[0098] Specifically, a glass window is detachably provided on the furnace door 18. The glass window is provided to facilitate observation of the internal conditions of the furnace body 1. When the glass window is damaged, it is convenient to replace it in time. A frame is provided on the furnace door 18. An opening is provided at one end of the frame to facilitate installation of the glass window. The glass window is located between the frame and the furnace door 18. A spring is provided at the end away from the opening in the frame. After the glass window is installed, a baffle is provided on one side of the glass window. The spring and baffle cooperate to protect the glass window. A limiting screw is provided on the side of the baffle away from the glass window. The limiting screw is screwed on the furnace door 18 and abuts against the baffle to limit the baffle and prevent the glass window from falling out.

[0099] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A furnace, characterized in that: It comprises a furnace body (1), an air inlet channel (2) and an exhaust channel (3); When the furnace body (1) is used in a shielded space, the air inlet end of the air inlet channel (2) is connected to the outside of the shielded space, and the connecting end is connected to the air inlet of the furnace body (1), so that air can be introduced from the outside of the shielded space into the furnace body (1); the connecting end of the exhaust channel (3) is connected to the exhaust port of the furnace body (1), and the exhaust end is connected to the outside of the shielded space, so that waste gas in the furnace body (1) can be discharged into the shielded space; One or more gas replenishing areas are arranged in the furnace body (1), and the gas replenishing areas are connected to the connecting end of the gas inlet channel (2); When the furnace body (1) is in use, air entering the furnace body (1) from the air inlet passes through the air supply area and then is discharged from the exhaust port; The air supply area is provided with two, namely a first air supply area and a second air supply area, and the air entering the furnace body (1) from the air inlet passes through the first air supply area and the second air supply area in sequence before being discharged from the exhaust port; The furnace door (18) is arranged on the front side of the furnace body (1), the air inlet is arranged on the rear side of the furnace body (1), an air guide plate (11) is arranged inside the furnace body (1), and the interior of the furnace body (1) is divided into two parts, an upper part and an lower part, the first air supply area is located on the front side of the lower part of the air guide plate (11), and the second air supply area is located on the rear side of the upper part of the air guide plate (11); The furnace body (1) is provided with an air intake regulating device (12), and the air intake regulating device (12) is capable of regulating the opening of the air intake port.

2. The furnace according to claim 1, characterized in that The first air supply area is connected to the connecting end of the air inlet channel (2) via a first air supply channel (4); The first air supply channel (4) comprises an ash box (41) and a first air supply pipe (42) which are interconnected. The ash box (41) is arranged at the bottom of the furnace body (1) and is connected to the first air supply area through an opening at the bottom of the furnace body (1). One end of the first air supply pipe (42) is connected to the connecting end of the air inlet channel (2), and the other end is connected to one side of the ash box (41). An ash tray (411) is arranged at the bottom of the ash box (41), and the ash tray (411) can open or close the opening at the bottom of the ash box (41).

3. The furnace according to claim 1, characterized in that The second air supply area is connected to the connecting end of the air inlet channel (2) via a second air supply channel (5); The second air supply channel (5) comprises a plurality of second air supply pipes (51), one end of the second air supply pipe (51) being connected to the connecting end of the air inlet channel (2), and the other end extending into the furnace body (1), and an air hole (511) is provided on the side wall of the portion of the second air supply pipe (51) extending into the furnace body (1).

4. The furnace according to claim 1, characterized in that The air intake regulating device (12) comprises: A sealing plate (121) is rotatably disposed inside the connecting end of the air inlet passage (2) via a rotating shaft; An adjusting rod (122) extends from the front side of the furnace body (1) to the rear side of the furnace body (1), is slidably connected to the furnace body (1), one end of which is connected to an operating handle, and the other end of which is connected to the rotating shaft via a transmission assembly. When the adjusting rod (122) slides, it can drive the sealing plate (121) to rotate so as to adjust the opening of the air inlet.

5. The furnace according to claim 1, characterized in that The first air supply area is connected to the connecting end of the air inlet channel (2) via a first air supply channel (4); The furnace body (1) is provided with a gas supply regulating device (13), and the gas supply regulating device (13) is capable of regulating the opening of the communication port between the first gas supply channel (4) and the furnace body (1).

6. The furnace according to any one of claims 1 to 5, characterized in that: It also comprises two cover shells (6), the two cover shells (6) are respectively rotatably connected to the furnace body (1) and are symmetrically arranged on the top of the furnace body (1); When the two cover shells (6) are buckled together, they can enclose the top of the furnace body (1) to form a closed baking space.

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