Firewood stove

Abstract

The utility model belongs to the technical field of stoves, and discloses a firewood stove which comprises a stove body, a door opening assembly is movably installed on the stove body and movably installed on the front side of the stove body, and an expansion frame is installed on the top of the stove body and movably installed on the front side of the stove body. A heating cavity and a heat storage cavity are formed in the expansion frame, at least one face of the heating cavity is open, the heat storage cavity is located above the heating cavity, a first smoke pipe used for being communicated with the atmosphere and the heat storage cavity is installed at the upper end of the expansion frame, and an oven cavity is formed in the oven body. The top plate and the upper sealing plate are vertically arranged, so that the fire watching experience of a user is not affected; two 90-degree bends are turned through the heat storage cavity, the effect of effectively preventing sparks is achieved, excessive heat is prevented from being discharged from the smoke pipe, the stroke of smoke is increased through the heat storage cavity, the heat utilization rate is increased, and the heating effect is better during barbecuing; and the door opening assembly is mounted on the front side of the furnace body, so that a larger amount of firewood can be added every time the firewood is added.

Description

Technical Field

[0001] The utility model belongs to the technical field of ovens, in particular to a wood-fired oven. Background Art

[0002] A wood stove is a heating or cooking device that provides heat by burning biomass fuels such as firewood, straw, and charcoal. Nowadays, users also use wood stoves for outdoor barbecues. A wood stove generally includes a furnace body, a grill above the furnace body, and burning wood or special charcoal is placed in the furnace body. The wood stove can be used to make barbecue foods such as grilled lamb skewers, barbecued meat, and grilled vegetables. The heat generated by the burning and heating of charcoal and firewood can heat and grill the food on the barbecue rack above.

[0003] After searching, a multifunctional outdoor wood-fired stove provided by a Chinese utility model patent (publication number: CN216293821U) includes a full-area grilling plate, a grilling rack, a half-area grilling plate, and a stove body with openings at the top and bottom. A first limit plate is arranged on the inner walls of the front and rear panels of the stove body. The grilling rack or the half-area grilling plate is mounted on the two first limit plates. An air curtain plate is arranged above the front and rear panels of the stove body. A top air inlet is arranged on the air curtain plate. Both ends of the full-area grilling plate are mounted on the two air curtain plates. A charcoal fire grid is arranged in the stove body. An ash drawer that closes the opening below the stove body is arranged below the charcoal fire grid. The ash drawer The drawer moves forward and backward relative to the furnace body under the action of force, and more than one side air inlet is arranged on the side panel of the furnace body, and an annular through groove is arranged below the side air inlet, and an air inlet adjustment component is inserted in the annular through groove. The air inlet adjustment component moves forward and backward relative to the annular through groove under the action of force and opens or closes the side air inlet, and the air inlet adjustment component includes a push switch and a baffle fixedly connected to the push switch, a first air inlet is arranged on the baffle and is aligned one by one with the side air inlets, and a second air inlet is arranged on the side of the ash receiving drawer and is aligned one by one with the side air inlets, and a thawing rack is detachably connected to the front and rear ends of the furnace body.

[0004] Preferably, hot air ducts are provided on both the full-area grill plate and the half-area grill plate. By providing the hot air ducts, extended smoke ducts can be provided on the hot air ducts at a later stage. The panels of the full-area grill plate and the half-area grill plate can be used to heat food and achieve cooking. The heat can be transferred to the required place through the smoke duct, ultimately achieving the dual effects of cooking and heating.

[0005] There are two problems in the above prior art:

[0006] 1. In the actual use of the wood stove in the prior art, firewood will generate sparks when burning, and the sparks will fly out from the smoke pipe. If the sparks fall on flammable materials, fire may occur, or the sparks fall on clothes, which may cause damage to the clothes. Although the above-mentioned prior art extends the smoke pipe to reduce the flying of sparks, it still cannot completely prevent the occurrence of flying sparks;

[0007] 2. In the prior art, firewood is added to the wood stove by adding firewood on the side wall of the stove body. However, the side wall of the stove body is usually small in area. Therefore, it is necessary to add firewood in small amounts and multiple times, which wastes time and requires multiple operations to add firewood, which is troublesome.

[0008] Therefore, it is urgent to improve the above shortcomings. Utility Model Content

[0009] The purpose of the utility model is to solve the above problems. The utility model provides a wood-burning stove, which has the advantages of enabling users to have a better fire-watching effect, preventing sparks from flying, and being able to add a large amount of firewood.

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a furnace body, on which a door opening assembly is movably mounted, the door opening assembly is movably mounted on the front side of the furnace body, an expansion frame is mounted on the top of the furnace body, the expansion frame has a heating chamber with at least one side open and a heat storage chamber located above the heating chamber, a first smoke pipe for connecting the atmosphere and the heat storage chamber is mounted on the upper end of the expansion frame, the furnace body has a furnace chamber, a top plate is also mounted on the top of the furnace body, a second smoke pipe connecting the furnace chamber and the heat storage chamber is mounted on the top plate, and the first smoke pipe and the second smoke pipe are non-coaxially arranged.

[0011] Preferably, the expansion frame includes two mounting plates, two closing plates, an upper sealing plate and a layer plate, the two mounting plates are mounted on the upper end of the furnace body, the upper sealing plate is mounted on the upper ends of the two mounting plates, the layer plate is mounted between the two mounting plates, the two closing plates are both mounted between the upper sealing plate and the layer plate, the first smoke pipe is mounted on the upper sealing plate, the second smoke pipe is mounted between the top plate and the layer plate, the heating chamber is formed by the two mounting plates, the top plate and the layer plate, and the heat storage chamber is formed by the two mounting plates, the two closing plates, the upper sealing plate, the first smoke pipe, the second smoke pipe and the layer plate.

[0012] Preferably, the furnace body includes a panel arranged on the front side of the furnace body and two side panels installed at the lower end of the top plate, the door opening assembly is movably installed between the two side panels, the door opening assembly includes a door panel and a door frame, both sides of the door panel have bent plates, the bent plates on both sides are hinged to one end of the door frame, the other end of the door frame is hinged to the side panel, and a first handle is installed on the door panel.

[0013] Preferably, the furnace body further comprises a limit plate installed at the lower end of the top plate, the limit plate is located at the front side of the panel, the upper end of the bending plate has a matching portion, and the matching portion is locked and matched with the limit plate.

[0014] Preferably, the panel, the door panel and the door frame all have openings, and the opening on the door frame is used for installing glass.

[0015] Preferably, an air volume regulating structure for adjusting the air output is provided above the furnace cavity, the air volume regulating structure includes a fixed shell installed between the furnace body and the top plate, an air cavity is formed between the top plate and the fixed shell, the fixed shell has a plurality of first air holes, adjacent first air holes have equal spacing, the fixed shell also has a through hole located at the lower side of the second smoke pipe, and an adjusting shell for controlling the opening and closing of the first air holes and the through hole is slidably provided on the fixed shell.

[0016] Preferably, the adjusting shell has a plurality of second ventilation holes with equal spacing, and the first ventilation holes correspond to the second ventilation holes one by one.

[0017] Preferably, the fixed shell has a slide groove, and the adjusting shell is provided with a sliding block matched with the slide groove.

[0018] Preferably, the length of the through hole in the moving direction of the adjusting shell is less than or equal to the maximum moving distance of the sliding block in the sliding groove.

[0019] Preferably, fire viewing windows are installed on both side panels.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] The utility model provides a wood-burning stove, which is used for grilling by means of a top plate and an upper sealing plate on an expansion frame, which are arranged up and down so as not to affect the user's fire-watching experience; the heat storage chamber is turned by two 90-degree bends, which effectively prevents sparks and prevents excessive heat from being discharged from the smoke pipe, and the heat storage chamber increases the travel of smoke, increases heat utilization, and achieves a better heating effect during grilling; and installing a door opening assembly on the front side of the stove body enables a larger amount of firewood to be added each time, thereby reducing the number of times of adding firewood and making it more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the door opening assembly of the utility model;

[0026] Figure 5 This is a side view structural diagram of the door opening assembly of the utility model;

[0027] Figure 6 This is a schematic diagram of the main structure of the door opening assembly of the utility model;

[0028] Figure 7 This is a three-dimensional structural diagram of the carbon bed and ash box assembly of the utility model;

[0029] Figure 8 This is a three-dimensional structural diagram of the gas volume regulating structure of the utility model;

[0030] Fig. 9 It is a schematic diagram of the gas volume regulating structure of the utility model when viewed from above.

[0031] Description of the drawings: 1. furnace body; 10. furnace cavity; 101. air cavity; 102. opening; 11. side panel; 111. back panel; 112. third adjustment hole; 12. fire viewing window; 13. handle; 14. support foot; 141. inner folding plate; 15. bottom plate; 151. first adjustment hole; 152. first switch; 16. panel; 161. second adjustment hole; 162. second switch; 163. support plate; 17. limit plate; 2. door opening assembly; 21. door panel; 211. mounting hole; 212. bending plate; 213. matching part; 22. first handle; 23. first pin ; 24. Door frame; 25. Second pin shaft; 3. Expansion frame; 301. Heating chamber; 302. Heat storage chamber; 31. Mounting plate; 32. Top plate; 33. Closing plate; 34. Upper sealing plate; 35. First smoke pipe; 36. Second smoke pipe; 37. Shelf; 4. Ash box assembly; 41. Ash box; 42. Second handle; 43. Block; 44. Carbon bed; 441. Carbon bed plate; 442. Broken groove; 5. Air volume adjustment structure; 51. Fixed shell; 511. First air vent; 512. Through hole; 513. Slide groove; 52. Adjusting shell; 521. Second air vent; 53. Slider. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] like Figure 1-Figure 9 As shown, a wood-fired stove comprises a stove body 1, on which an ash box assembly 4 is movably mounted, a door opening assembly 2 is movably mounted on the front side of the stove body 1, an expansion frame 3 is mounted on the top of the stove body 1, the expansion frame 3 has a heating chamber 301 with at least one side open and a heat storage chamber 302 located above the heating chamber 301, in the present application, the heating chamber 301 is through-connected on both sides, the open side of the heating chamber 301 is used for placing food to be baked, a first smoke pipe 35 for connecting the atmosphere and the heat storage chamber 302 is mounted on the upper end of the expansion frame 3, a stove chamber 10 is arranged in the stove body 1, a top plate 32 is further mounted on the top of the stove body 1, a second smoke pipe 36 connecting the stove chamber 10 and the heat storage chamber 302 is mounted on the top plate 32, and the first smoke pipe 35 and the second smoke pipe 36 are non-coaxially arranged.

[0034] like Figure 1-Figure 3 As shown, the expansion frame 3 includes two mounting plates 31, two closing plates 33, an upper sealing plate 34 and a layer plate 37. The two mounting plates 31 are symmetrically mounted on the upper end of the furnace body 1, the upper sealing plate 34 is mounted on the upper ends of the two mounting plates 31, and the layer plate 37 is mounted between the two mounting plates 31. The two closing plates 33 are both mounted between the upper sealing plate 34 and the layer plate 37. The first smoke pipe 35 is mounted on the upper sealing plate 34, and the second smoke pipe 36 is mounted between the top plate 32 and the layer plate 37. The heating chamber 301 is formed by the two mounting plates 31, the top plate 32 and the layer plate 37. The heat storage chamber 302 is formed by the two mounting plates 31, the two closing plates 33, the upper sealing plate 34, the first smoke pipe 35, the second smoke pipe 36 and the layer plate 37. In addition, an external smoke pipe can be connected to the first smoke pipe 35 to increase the total height of the smoke pipe.

[0035] according to Figure 5-Figure 6 As shown, the furnace body 1 includes a panel 16 arranged on the front side of the furnace body 1 and two side panels 11 symmetrically installed at the lower end of the top plate 32. The door opening assembly 2 is movably installed between the two side panels 11. The door opening assembly 2 includes a door panel 21 and a door frame 24. Both sides of the door panel 21 have bent plates 212. The bent plates 212 on both sides are hinged at one end of the door frame 24. The other end of the door frame 24 is hinged to the side panel 11. A first handle 22 is installed on the door panel 21.

[0036] according to Figure 5As shown, the furnace body 1 also includes a limit plate 17 installed at the lower end of the top plate 32, the limit plate 17 is located on the front side of the panel 16, and the upper end of the bent plate 212 has a matching portion 213, the matching portion 213 is locked and matched with the limit plate 17, when the matching portion 213 is locked and matched with the limit plate 17, the contact surface of the matching portion 213 and the limit plate 17 is located between the panel 16 and the door panel 21, and the contact surface of the matching portion 213 and the limit plate 17 is a plane, and when the door panel 21 rotates around the hinge point between the door panel 21 and the door frame 24, the matching portion 213 is locked and matched with the limit plate 17. The part 213 will not touch the end face of the panel 16. In the present application, the matching part is fan-shaped. In addition to the fan-shaped, it can also be a polygon, triangle, or any other shape. When the door panel 21 rotates around the hinge point between the door panel 21 and the door frame 24, the matching part 213 will not touch the end face of the panel 16. In addition, there are openings 102 on the panel 16, the door panel 21 and the door frame 24. The opening 102 on the door frame 24 is used to install glass. When locked, the hinge point between the door panel 21 and the door frame 24 is located above the hinge point between the side panel 11 and the door frame 24.

[0037] When opening the door, the first handle 22 is pulled to first rotate the door panel 21 around the hinge point between the door panel 21 and the door frame 24. When the door panel 21 rotates to be parallel to the top plate 32, the first handle 22 is pulled horizontally to move to the side away from the panel 16, thereby causing the door panel 21 and the door frame 24 to swing around the hinge point between the door frame 24 and the side panel 11, thereby realizing the door opening function. The door opening component 2 of the present application is movably installed on the front side of the panel 16, and the area of ​​the panel 16 is larger than that of the side panel 11. Therefore, installing the door opening component 2 on the front side of the furnace body 1 has a larger opening surface, and more firewood can be added at one time, thereby making it more convenient to add firewood.

[0038] When closing the door, hold the first handle 22 to rotate the door panel 21 and the door frame 24 around the hinge point between the door frame 24 and the side panel 11 until the matching part 213 moves to the lower end of the limit plate 17. At this time, let go. Through the gravity of the door panel 21, the door panel 21 will swing downward around the hinge point between the door panel 21 and the door frame 24, so that the door panel 21 can be automatically closed.

[0039] according to Figure 2 , Figure 3 and Figure 8-Figure 9 As shown, the furnace body 1 has a furnace cavity 10, and a gas volume regulating structure 5 for adjusting the gas output is arranged on the top of the furnace body 1. The gas volume regulating structure 5 includes a fixed shell 51 installed between the furnace body 1 and the top plate 32. An air cavity 101 is formed between the top plate 32 and the fixed shell 51. The fixed shell 51 has a plurality of first air holes 511, and the adjacent first air holes 511 are spaced at equal intervals. The fixed shell 51 also has a through hole 512 located at the lower side of the second smoke pipe 36. An adjusting shell 52 for controlling the opening and closing of the first air holes 511 and the through hole 512 is slidably arranged on the fixed shell 51, and the adjusting shell 52 can open or close the first air holes 511 and the through hole 512 at the same time.

[0040] The adjusting shell 52 has a plurality of second air holes 521 with equal spacing, and the first air holes 511 and the second air holes 521 are arranged in a one-to-one correspondence, that is, the spacing between two adjacent first air holes 511 is equal to the spacing between two adjacent second air holes 521, and the spacing between two adjacent first air holes 511 is equal to the spacing between two adjacent second air holes 521 and the width of the first air holes 511 and the second air holes 521 are equal.

[0041] The fixed shell 51 has a slide groove 513 , and the adjusting shell 52 is provided with a slider 53 matched with the slide groove 513 . The length of the through hole 512 in the moving direction of the adjusting shell 52 is less than or equal to the maximum moving distance of the slider 53 in the slide groove 513 .

[0042] In this embodiment, the first ventilation holes 511 and the second ventilation holes 521 are both arranged in two rows, and the number of the second ventilation holes 521 is smaller than that of the first ventilation holes 511 .

[0043] When the fuel combustion power needs to be increased, the first vent hole 511 is made to correspond to the second vent hole 521 by moving the adjustment shell 52, and the through hole 512 is fully opened, so that the furnace cavity 10, the air cavity 101 and the heat storage cavity 302 are connected. At this time, more gas is in the furnace cavity 10, and the combustion power is greater.

[0044] When it is necessary to achieve a better fire-viewing effect and to make the temperatures of the top plate 32 and the upper sealing plate 34 higher, the first air vent 511 and the second air vent 521 are staggered with each other by moving the adjustment shell 52 to the maximum moving distance, so that part of the first air vent 511 is closed and the through hole 512 is completely closed. At this time, the flame in the furnace cavity 10 can be more ornamental, and the temperatures of the top plate 32 and the upper sealing plate 34 are higher, so that the barbecue effect can be better.

[0045] The ash box assembly 4 includes an ash box 41, on which a second handle 42 is installed. One of the side panels 11 has a matching hole for allowing the ash box 41 to move. A clamping block 43 protruding from the bottom of the ash box 41 is provided at the bottom of the ash box 41. The lower end of the clamping block 43 is lower than the bottom edge of the matching hole. Therefore, when the ash box 41 needs to be pulled out of the furnace cavity 10, the ash box 41 needs to be lifted so that the bottom of the clamping block 43 is higher than the bottom edge of the matching hole, so that the ash box 41 can be taken out of the furnace cavity 10. Therefore, the ash box 41 can be locked and fitted in the furnace cavity 10 through the clamping block 43.

[0046] The furnace body 1 also includes a back plate 111. The lower ends of the back plate 111 and the panel 16 are bent to form a bottom plate 15. The furnace body 1 is formed by two side plates 11, the back plate 111, the bottom plate 15, the panel 16 and the top plate 32. Support plates 163 are installed on the back plate 111 and the panel 16. Several carbon beds 44 are detachably arranged on the support plate 163. The arrangement of multiple carbon beds 44 facilitates the removal and cleaning of the furnace. The carbon bed 44 has two rows of carbon bed plates 441, and broken grooves 442 are formed between the carbon bed plates 441. The broken grooves 442 can release stress during use and will not deform.

[0047] The bottom plate 15 is provided with a plurality of first adjustment holes 151 and a first switch 152 for opening and closing the first adjustment holes 151, the panel 16 is provided with a plurality of second adjustment holes 161 and a second switch 162 for opening and closing the second adjustment holes 161, and the back plate 111 is provided with a third adjustment hole 112 which can be adjusted to open and close. The ventilation passage of the furnace cavity 10 is adjusted through the plurality of adjustment holes, so that the flame in the furnace cavity 10 can meet the different needs of different customers, and fire viewing windows 12 are installed on the two side panels 11, so that the fire can be viewed from more directions during use.

[0048] The front and rear ends of the bottoms of the two side panels 11 are movably mounted with supporting feet 14 , the bottoms of the supporting feet 14 are provided with inner folding plates 141 , and the inner folding plates 141 can be mounted with anti-skid cushion pads. The upper ends of the other two side panels 11 are mounted with handles 13 .

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wood-burning stove, comprising a stove body (1), a door opening assembly (2) being movably mounted on the stove body (1), characterized in that: The door opening assembly (2) is movably mounted on the front side of the furnace body (1); an expansion frame (3) is mounted on the top of the furnace body (1); the expansion frame (3) has a heating chamber (301) with at least one side open and a heat storage chamber (302) located above the heating chamber (301); a first smoke pipe (35) for connecting the atmosphere and the heat storage chamber (302) is mounted on the upper end of the expansion frame (3); the furnace body (1) has a furnace chamber (10); a top plate (32) is mounted on the top of the furnace body (1); a second smoke pipe (36) for connecting the furnace chamber (10) and the heat storage chamber (302) is mounted on the top plate (32); the first smoke pipe (35) and the second smoke pipe (36) are non-coaxially arranged.

2. A wood-fired stove according to claim 1, characterized in that: The expansion frame (3) comprises two mounting plates (31), two closing plates (33), an upper sealing plate (34) and a layer plate (37); the two mounting plates (31) are mounted on the upper end of the furnace body (1); the upper sealing plate (34) is mounted on the upper ends of the two mounting plates (31); the layer plate (37) is mounted between the two mounting plates (31); the two closing plates (33) are mounted between the upper sealing plates (34) and the layer plate (37); the first smoke pipe (35) is mounted on the upper end of the furnace body (1); The second smoke pipe (36) is installed on the upper sealing plate (34) between the top plate (32) and the layer plate (37); the heating chamber (301) is formed by installing two of the mounting plates (31), the top plate (32) and the layer plate (37); and the heat storage chamber (302) is formed by installing two of the mounting plates (31), the two sealing plates (33), the upper sealing plate (34), the first smoke pipe (35), the second smoke pipe (36) and the layer plate (37).

3. A wood-fired stove according to claim 1, characterized in that: The furnace body (1) comprises a panel (16) arranged on the front side of the furnace body (1), and two side panels (11) installed at the lower end of the top panel (32); the door opening assembly (2) is movably installed between the two side panels (11); the door opening assembly (2) comprises a door panel (21) and a door frame (24); both sides of the door panel (21) have a bent plate (212); the bent plates (212) on both sides are hinged to one end of the door frame (24); the other end of the door frame (24) is hinged to the side panel (11); and a first handle (22) is installed on the door panel (21).

4. A wood-fired stove according to claim 3, characterized in that: The furnace body (1) further comprises a limit plate (17) mounted on the lower end of the top plate (32), the limit plate (17) being located in front of the panel (16), the upper end of the bent plate (212) comprising a matching portion (213), the matching portion (213) being locked and matched with the limit plate (17).

5. A wood-fired stove according to claim 4, characterized in that: The panel (16), the door panel (21) and the door frame (24) all have openings (102); the opening (102) on the door frame (24) is used for installing glass.

6. A wood-fired stove according to claim 1, characterized in that: An air volume regulating structure (5) for regulating the air output volume is arranged above the furnace cavity (10), the air volume regulating structure (5) comprising a fixed shell (51) installed between the furnace body (1) and the top plate (32), an air cavity (101) being formed between the top plate (32) and the fixed shell (51), the fixed shell (51) having a plurality of first air holes (511), adjacent first air holes (511) having equal spacing, the fixed shell (51) also having a through hole (512) located at the lower side of the second smoke pipe (36), and an regulating shell (52) for controlling the opening and closing of the first air holes (511) and the through hole (512) being slidably arranged on the fixed shell (51).

7. A wood-fired stove according to claim 6, characterized in that: The regulating shell (52) is provided with a plurality of second ventilation holes (521) at equal intervals, and the first ventilation holes (511) and the second ventilation holes (521) are matched one-to-one.

8. A wood-fired stove according to claim 7, characterized in that: The fixed shell (51) is provided with a slide groove (513), and the adjustment shell (52) is provided with a sliding block (53) that cooperates with the slide groove (513).

9. A wood-fired stove according to claim 8, characterized in that: The length of the through hole (512) in the moving direction of the adjustment shell (52) is less than or equal to the maximum moving distance of the sliding block (53) in the sliding groove (513).

10. A wood-fired stove according to claim 3, characterized in that: Fire viewing windows (12) are installed on both side panels (11).

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