Oven exhaust structure

Abstract

The utility model relates to the field of ovens, in particular to an oven exhaust structure which comprises an exhaust assembly arranged above an oven body, the exhaust assembly comprises an oven cover, the oven cover is hinged to the top of the oven body through a second hinge, the bottom of one end of the oven cover is fixedly connected with a sealing plate, and the sealing plate is matched with a taking-out groove. A wind scooper is jointly and fixedly connected to the outer wall of the box cover and the outer wall of the sealing plate, a plurality of wind guiding pipes are arranged in the wind scooper at equal intervals, the other ends of the wind guiding pipes extend into the box cover, and a plurality of wind inlet holes are formed in the outer pipe walls, located in the box cover, of the wind guiding pipes at equal intervals in a penetrating mode; an air pump is installed on the outer wall of the wind scooper, and the air suction end of the air pump extends into the wind scooper. Due to the arrangement of the multiple air guide pipes, oil fume in the box body and the box cover can be effectively and fully sucked and discharged, and oil stains in the oil fume can be discharged through the discharging pipe after being discharged into the air guide cover.

Description

Technical Field

[0001] The utility model relates to the field of ovens, in particular to an oven exhaust structure. Background Art

[0002] An oven is a sealed device used to bake food or dry products. During the process of drying the moisture inside meat products in a charcoal oven, the oil in the meat products will drip onto the charcoal and produce oil smoke. In order to prevent the meat products inside the drum from being smoked by the oil smoke, an exhaust structure needs to be provided inside the oven to extract the oil smoke. However, most of the existing exhaust structures are provided around the bottom of the box cover, and the coverage area is small. When the oil smoke is large, the oil smoke cannot be fully discharged. Utility Model Content

[0003] Aiming at the problem that the exhaust structure in the prior art has a small coverage area and cannot fully exhaust the oil smoke when the oil smoke is large, the utility model provides an oven exhaust structure.

[0004] The technical solution adopted by the utility model to solve the technical problem is: an oven exhaust structure, comprising a box body, an exhaust assembly, a drum assembly, a dust cleaning assembly and a driving shaft, the box body is provided with an inner cavity, two driving shafts are provided, and the two driving shafts are rotatably plugged in the inner cavity, the exhaust assembly is arranged above the box body, the drum assembly and the dust cleaning assembly are both arranged in the inner cavity inside the box body, and the drum assembly and the dust cleaning assembly are respectively arranged above and below the two driving shafts;

[0005] An extraction groove is formed on the inner wall of the inner cavity of the box body, a servo motor is arranged at one end of the box body, an output end of the servo motor is fixedly connected to a rotating shaft through a coupling, and the rotating shaft movably passes through the box body and extends to the inner cavity;

[0006] The exhaust assembly includes a box cover, which is hinged to the top of the box body through a second hinge, a sealing plate is fixedly connected to the bottom of one end of the box cover, and the sealing plate is adapted to be arranged with the taking-out slot, an air guide hood is fixedly connected to the outer walls of the box cover and the sealing plate, a plurality of air guide ducts are arranged at equal intervals inside the air guide hood, the other end of the air guide duct extends to the inside of the box cover, and a plurality of air inlet holes are opened at equal intervals on the outer tube wall of the air guide duct located inside the box cover, an air pump is installed on the outer wall of the air guide hood, and the air suction end of the air pump extends to the inside of the air guide hood;

[0007] The roller assembly comprises a first fan-shaped combined plate and a second fan-shaped combined plate, wherein the first fan-shaped combined plate and the second fan-shaped combined plate are both symmetrically arranged with two, wherein one group of the first fan-shaped combined plate and the second fan-shaped combined plate are hinged by a third hinge, and an outer wall of the other group of the first fan-shaped combined plate and the second fan-shaped combined plate is provided with an external thread groove, and an internal thread ring is threadedly sleeved on the external thread groove, and a plurality of connecting rods are fixedly connected to the adjacent sides of the two first fan-shaped combined plates and the two second fan-shaped combined plates at equal intervals, and a connecting shaft is fixedly connected to the plate wall of the two second fan-shaped combined plates on the side away from each other, and a connecting frame is rotatably sleeved on the shaft wall of the connecting shaft close to the third hinge, and a receiving plate is fixedly connected to the bottom of the connecting frame, and grooves are provided on both sides of the receiving plate, and a flip plate is hingedly connected to the inside of the groove through a pin shaft;

[0008] The ash cleaning assembly comprises a plurality of support rods and an ash guide plate, the ash guide plate is arranged under the support rod, the ash guide plate is an elastic metal plate, and one end of the ash guide plate is fixedly connected to the inner wall of the inner cavity, the other end of the ash guide plate passes through the box body, and an ash discharge slot is provided on the outer wall of the box body corresponding to the ash guide plate, and the end of the ash guide plate is movably passed through the ash discharge slot and extended out of the box body, the plurality of support rods all rotate through the box body, and a first tooth groove is provided on the rod wall at one end of the support rod passing through the box body, a second tooth groove is provided on the shaft wall of the rotating shaft, a first transmission belt is connected to the transmission sleeves on the first tooth groove and the second tooth groove, the rotating shaft extends to the shaft wall inside the inner cavity and is fixedly connected with a rotating column, the rotating column conflicts with the outer wall of the ash guide plate, and a shift block is fixedly connected to the outer wall of the rotating column;

[0009] The driving shaft is rotatably connected to one end of the box body with a first square shaft, a second square shaft is arranged between the two first square shafts, the second square shaft is rotatably inserted into the outer wall of the box body, a first inner square shaft sleeve is slidably sleeved on the shaft wall of the first square shaft, a first gear is fixedly sleeved on the outer wall of the first inner square shaft sleeve, a second inner square shaft sleeve and a first transmission wheel are slidably sleeved on the shaft wall of the second square shaft, a second gear is fixedly sleeved on the outer wall of the second inner square shaft sleeve, the second gear is meshed with the first gears on both sides, a corresponding second transmission wheel is fixedly sleeved on the shaft wall of the rotating shaft below the first transmission wheel, and the second transmission wheel is transmission-connected to the first transmission wheel through a second transmission belt.

[0010] Specifically, a first dust cover is fixedly connected to the outer wall of one end of the box body.

[0011] Specifically, a second dust cover is hingedly connected to an outer wall of the box body at one end close to the first dust cover through a first hinge, and the second dust cover is arranged above the first dust cover.

[0012] Specifically, a handle is fixedly connected to the outer wall of the box cover on the side away from the second hinge.

[0013] Specifically, the bottom of the air guide cover is fixedly connected to a discharge pipe, and a gate valve is provided at the end of the discharge pipe.

[0014] Specifically, continuous meshing teeth are arranged on the outer side walls of the first sector-shaped combined plate and the second sector-shaped combined plate, and matching meshing grooves are arranged on the shaft wall of the driving shaft corresponding to the meshing teeth.

[0015] Specifically, the width of the receiving plate is smaller than the distance between the two driving shafts.

[0016] Beneficial effects of the utility model:

[0017] The utility model discloses an oven exhaust structure, which sucks the oil fume by laying a plurality of air ducts at equal intervals on the box cover of the arched structure inside the exhaust assembly and discharges the oil fume through the air pump on the air duct cover. The arrangement of the plurality of air ducts can effectively and fully suck and discharge the oil fume inside the box body and the box cover, and the oil stains inside the oil fume can be discharged to the inside of the air duct cover and then discharged through the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of an oven exhaust structure provided by the utility model Figure 1 ;

[0020] Figure 2 A schematic diagram of an oven exhaust structure provided by the utility model Figure 2 ;

[0021] Figure 3 A schematic diagram of the structure of an oven exhaust structure provided by the utility model after the second dust cover is opened;

[0022] Figure 4 A schematic diagram of the structure of an oven exhaust structure provided by the utility model after the box cover is turned over Figure 1 ;

[0023] Figure 5 A schematic diagram of the structure of an oven exhaust structure provided by the utility model after the box cover is turned over Figure 2 ;

[0024] Figure 6 A cross-sectional view of an oven exhaust structure provided by the utility model;

[0025] Figure 7 A schematic diagram of the structure of a box cover in an oven exhaust structure provided by the utility model;

[0026] Figure 8A schematic diagram of the structure of a dust cleaning component in an oven exhaust structure provided by the utility model;

[0027] Fig. 9 A schematic diagram of the structure of a drum assembly in an oven exhaust structure provided by the utility model Figure 1 ;

[0028] Fig.10 A schematic diagram of the structure of a drum assembly in an oven exhaust structure provided by the utility model Figure 2 .

[0029] In the figure: 1, box body; 11, inner cavity; 12, removal slot; 13, first dust cover; 14, servo motor; 15, first hinge; 16, second dust cover; 17, rotating shaft;

[0030] 2. Exhaust assembly; 21. Box cover; 22. Second hinge; 23. Handle; 24. Closing plate; 25. Air guide cover; 26. Air guide duct; 27. Air inlet hole; 28. Air pump; 29. ​​Discharge pipe;

[0031] 3. Roller assembly; 31. First fan-shaped assembly plate; 32. Second fan-shaped assembly plate; 33. Third hinge; 34. Connecting rod; 35. Engaging teeth; 36. Connecting shaft; 37. Connecting frame; 38. Receiving plate; 39. Groove; 310. Turning plate; 311. External thread groove; 312. Internal thread ring;

[0032] 4. dust cleaning assembly; 41. support rod; 42. dust guide plate; 43. dust discharge slot; 44. first tooth slot; 45. second tooth slot; 46. first transmission belt; 47. rotating column; 48. shifting block;

[0033] 5. Drive shaft; 51. Engaging groove; 52. First square shaft; 53. First inner square shaft sleeve; 54. First gear; 55. Second square shaft; 56. First transmission wheel; 57. Second inner square shaft sleeve; 58. Second gear; 59. Second transmission wheel; 510. Second transmission belt. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0035] like Figure 1-Figure 10As shown, an oven exhaust structure described in the utility model comprises a box body 1, an exhaust assembly 2, a drum assembly 3, a dust cleaning assembly 4 and a drive shaft 5. An inner cavity 11 is provided inside the box body 1, two drive shafts 5 are provided, and both drive shafts 5 are rotatably plugged inside the inner cavity 11, the exhaust assembly 2 is arranged above the box body 1, the drum assembly 3 and the dust cleaning assembly 4 are both arranged in the inner cavity 11 inside the box body 1, and the drum assembly 3 and the dust cleaning assembly 4 are respectively arranged above and below the two drive shafts 5;

[0036] A take-out groove 12 is formed on the inner wall of the inner cavity 11 of the box body 1. A servo motor 14 is provided at one end of the box body 1. The output end of the servo motor 14 is fixedly connected to a rotating shaft 17 through a coupling. The rotating shaft 17 movably passes through the box body 1 and extends to the inside of the inner cavity 11.

[0037] The exhaust assembly 2 includes a box cover 21, which is hinged to the top of the box body 1 through a second hinge 22. A sealing plate 24 is fixedly connected to the bottom of one end of the box cover 21, and the sealing plate 24 is adapted to the removal slot 12. An air guide hood 25 is fixedly connected to the outer walls of the box cover 21 and the sealing plate 24. A plurality of air guide ducts 26 are evenly spaced inside the air guide hood 25. The other end of the air guide duct 26 extends to the inside of the box cover 21, and the air guide duct 26 is located on the outer tube wall inside the box cover 21 and penetrates a plurality of air inlet holes 27 at equal intervals. An air pump 28 is installed on the outer wall of the air guide hood 25, and the air suction end of the air pump 28 extends to the inside of the air guide hood 25.

[0038] The drum assembly 3 includes a first fan-shaped combined plate 31 and a second fan-shaped combined plate 32, and the first fan-shaped combined plate 31 and the second fan-shaped combined plate 32 are symmetrically arranged with two of them, wherein one group of the first fan-shaped combined plate 31 and the second fan-shaped combined plate 32 are hinged by a third hinge 33, and the outer walls of the other group of the first fan-shaped combined plate 31 and the second fan-shaped combined plate 32 are provided with external thread grooves 311, and the external thread grooves 311 are threadedly sleeved with internal thread rings 312, and the two first fan-shaped combined plates 31 and the two second fan-shaped combined plates 32 are fixedly connected with a plurality of connecting rods 34 at equal intervals on adjacent sides, and the two second fan-shaped combined plates 32 are fixedly connected with connecting shafts 36 on the plate walls away from each other, and a connecting frame 37 is rotatably sleeved on the shaft wall of the connecting shaft 36 on the side close to the third hinge 33, and a receiving plate 38 is fixedly connected to the bottom of the connecting frame 37, and grooves 39 are provided on both sides of the receiving plate 38, and a flip plate 310 is hingedly connected inside the groove 39 through a pin shaft;

[0039] The ash cleaning assembly 4 includes a plurality of support rods 41 and an ash guide plate 42. The ash guide plate 42 is arranged below the support rod 41. The ash guide plate 42 is an elastic metal plate, and one end of the ash guide plate 42 is fixedly connected to the inner wall of the inner cavity 11. The other end of the ash guide plate 42 passes through the box body 1, and an ash discharge groove 43 is provided on the outer wall of the box body 1 corresponding to the ash guide plate 42. The end of the ash guide plate 42 movably passes through the ash discharge groove 43 and extends out of the box body 1. The plurality of support rods 41 all rotate through the box body 1, and a first tooth groove 44 is provided on the rod wall at one end of the support rod 41 passing through the box body 1, and a second tooth groove 45 is provided on the shaft wall of the rotating shaft 17. A first transmission belt 46 is connected to the transmission sleeve on the first tooth groove 44 and the second tooth groove 45. The rotating shaft 17 extends to the shaft wall of the inner cavity 11 and is fixedly connected with a rotating column 47. The rotating column 47 conflicts with the outer wall of the ash guide plate 42, and a shift block 48 is fixedly connected to the outer wall of the rotating column 47.

[0040] One end of the driving shaft 5 rotates and passes through the box body 1 and is fixedly connected to a first square shaft 52. A second square shaft 55 is arranged between the two first square shafts 52. The second square shaft 55 is rotatably inserted into the outer wall of the box body 1. A first inner square shaft sleeve 53 is slidably sleeved on the shaft wall of the first square shaft 52. A first gear 54 is fixedly sleeved on the outer wall of the first inner square shaft sleeve 53. A second inner square shaft sleeve 57 and a first transmission wheel 56 are slidably sleeved on the shaft wall of the second square shaft 55. A second gear 58 is fixedly sleeved on the outer wall of the second inner square shaft sleeve 57. The second gear 58 is meshed and connected with the first gears 54 on both sides. A corresponding second transmission wheel 59 is fixedly sleeved on the shaft wall of the rotating shaft 17 located below the first transmission wheel 56. The second transmission wheel 59 is transmission-connected to the first transmission wheel 56 through a second transmission belt 510.

[0041] A first dust cover 13 is fixedly connected to the outer wall of one end of the box body 1. The setting of the first dust cover 13 can effectively prevent the first transmission belt 46 and the second transmission belt 510 from adhering dust, and the outer wall of the first dust cover 13 is convenient for fixing the servo motor 14 through a fixed frame.

[0042] A second dust cover 16 is hingedly connected to the outer wall of the box body 1 near one end of the first dust cover 13 through a first hinge 15. The second dust cover 16 is arranged above the first dust cover 13. The setting of the second dust cover 16 can not only effectively prevent dust from adhering to the gear set, but also effectively make the gear set more convenient to replace, and can also effectively limit the inner square sleeve.

[0043] A handle 23 is fixedly connected to the outer wall of the box cover 21 on the side away from the second hinge 22. The provision of the handle 23 can effectively make the box cover 21 more convenient when opening and closing.

[0044] The bottom of the air guide cover 25 is fixedly connected with a discharge pipe 29 , and a gate valve is provided at the end of the discharge pipe 29 . The discharge pipe 29 can facilitate the discharge of oil stains carried by the oil smoke discharged from the air guide pipe 26 and dripping into the air guide cover 25 .

[0045] Continuous meshing teeth 35 are arranged on the outer side walls of the first sector-shaped combined plate 31 and the second sector-shaped combined plate 32, and matching meshing grooves 51 are arranged on the shaft wall of the driving shaft 5 corresponding to the meshing teeth 35, which can effectively improve the transmission effect between the drum and the driving shaft 5.

[0046] The width of the receiving plate 38 is smaller than the spacing between the two driving shafts 5 , so that the receiving plate 38 can smoothly pass through the gap between the two driving shafts 5 .

[0047] When in use, the box cover 21 is turned upward with the second hinge 22 as the axis, and the roller assembly 3 is pulled out along the drive shaft 5 toward the direction of the removal groove 12. After the roller assembly 3 is taken out, the internal thread ring 312 can be screwed off. After the internal thread ring 312 is separated from the external thread groove 311, the first fan-shaped combination plate 31 can be turned upward with the third hinge 33 as the axis to open. At this time, the material to be baked can be filled into the second fan-shaped combination plate 32 in sequence. After the material filling is completed, the first fan-shaped combination plate 31 is closed and the internal thread ring 312 is screwed on to complete the material filling;

[0048] Then, the ignited charcoal is added into the inner cavity 11 through the gap between the two drive shafts 5. The charcoal is located on the support rod 41. After the charcoal is added, the roller assembly 3 can be placed into the inner cavity 11 inside the box body 1. During the placement of the roller assembly 3, the flip plates 310 hinged on both sides of the bottom receiving plate 38 can flip upward with the pin as the axis when they collide with the drive shaft 5, so that the receiving plate 38 and the flip plate 310 can smoothly pass through the gap between the two drive shafts 5, and the meshing teeth 35 on the outer wall of the plate body composed of the first fan-shaped combined plate 31 and the second fan-shaped combined plate 32 will mesh with the meshing groove 51 on the shaft wall of the drive shaft 5. At this time, as shown in the attached Figure 4 and attached Figure 5 The status shown;

[0049] At this time, the box cover 21 inside the exhaust assembly 2 can be closed, and the oven is as shown in the attached Figure 1 and attached Figure 2 As shown, the servo motor 14 is started, and the output end of the servo motor 14 drives the rotating shaft 17 to rotate. When the rotating shaft 17 rotates, it can drive the first transmission wheel 56 to rotate through the second transmission wheel 59 and the second transmission belt 510, and can drive the multiple support rods 41 to rotate synchronously through the first transmission belt 46. In addition, the rotating shaft 17 can also drive the rotating column 47 to rotate;

[0050] When the multiple support rods 41 rotate, they can drive the charcoal located between the two support rods 41 to flip. During the flipping process, the charcoal can drop the charcoal ash after burning, which can effectively prevent the charcoal ash from covering the charcoal and affecting the heat dissipation of the charcoal. The discharged charcoal ash will fall along the gaps between the support rods 41 onto the inclined ash guide plate 42. The inclined ash guide plate 42 can discharge the charcoal ash and discharge it from the ash discharge groove 43 to the ash receiving box placed at one end of the box body 1. At the same time, after rotating one circle, the rotating column 47 can drive the shifting block 48 to resist and press down the ash guide plate 42, so that the ash guide plate 42 vibrates and effectively vibrates and discharges the charcoal ash collected on the plate surface.

[0051] When the first transmission wheel 56 rotates, it can drive the coaxial second gear 58 to rotate. When the second gear 58 rotates, it can drive the two first gears 54 meshing therewith to rotate. When the first gear 54 rotates, it can drive the two driving shafts 5 to rotate synchronously. When the two driving shafts 5 rotate synchronously, they can drive the drum to rotate. When the drum rotates, it can drive the material inside to turn over so that the material is heated more evenly during baking.

[0052] The oil stains generated during the baking process of the material will drip along the gap between the connecting rods 34 and will be caught by the receiving plate 38 and the flip plate 310 made of quartz glass, which can effectively prevent the oil stains from dripping onto the charcoal and generating a large amount of oil smoke;

[0053] The air pump 28 is turned on. After being turned on, the air pump 28 can suck and discharge the smoke inside the box body 1 along the air guide cover 25 and the air guide pipe 26. The arrangement of multiple air guide pipes 26 can effectively and fully suck and discharge the oil smoke inside the box body 1 and the box cover 21, and the oil stains inside the oil smoke can be discharged from the discharge pipe 29 after being discharged into the air guide cover 25;

[0054] After baking is completed, the servo motor 14 can be stopped, and the drum assembly 3 can be pulled out after the box cover 21 is opened. After the drum assembly 3 is pulled out, the internal thread ring 312 can be unscrewed to take out the material.

[0055] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An oven exhaust structure, characterized in that: It comprises an exhaust assembly (2) arranged above a box body (1), an inner cavity (11) is provided inside the box body (1), and a removal groove (12) is provided through the inner wall of the inner cavity (11) inside the box body (1); The exhaust assembly (2) comprises a box cover (21), wherein the box cover (21) is hinged to the top of the box body (1) via a second hinge (22), a sealing plate (24) is fixedly connected to the bottom of one end of the box cover (21), and the sealing plate (24) is matched with the removal slot (12), an air guide cover (25) is fixedly connected to the outer walls of the box cover (21) and the sealing plate (24), a plurality of air guide pipes (26) are arranged at equal intervals inside the air guide cover (25), the other end of the air guide pipe (26) extends to the inside of the box cover (21), and a plurality of air inlet holes (27) are opened and penetrated at equal intervals on the outer pipe wall of the air guide pipe (26) located inside the box cover (21), an air pump (28) is installed on the outer wall of the air guide cover (25), and the air suction end of the air pump (28) extends to the inside of the air guide cover (25).

2. The oven exhaust structure according to claim 1, characterized in that: Two drive shafts (5) are rotatably plugged into the inner wall of the inner cavity (11) of the box body (1), and a roller assembly (3) and a dust cleaning assembly (4) are also arranged inside the box body (1). The roller assembly (3) and the dust cleaning assembly (4) are both arranged in the inner cavity (11) inside the box body (1), and the roller assembly (3) and the dust cleaning assembly (4) are respectively arranged above and below the two drive shafts (5); A servo motor (14) is disposed at one end of the box body (1), and an output end of the servo motor (14) is fixedly connected to a rotating shaft (17) via a coupling, and the rotating shaft (17) movably passes through the box body (1) and extends into the interior of the inner cavity (11); The drum assembly (3) comprises a first fan-shaped assembly plate (31) and a second fan-shaped assembly plate (32), wherein two of the first fan-shaped assembly plates (31) and the second fan-shaped assembly plates (32) are symmetrically arranged, wherein one set of the first fan-shaped assembly plates (31) and the second fan-shaped assembly plates (32) are hingedly connected via a third hinge (33), and the outer walls of the other set of the first fan-shaped assembly plates (31) and the second fan-shaped assembly plates (32) are each provided with an external thread groove (311), and an internal thread ring (312) is threadedly sleeved on the external thread groove (311). The two first fan-shaped assembly plates (31) are connected to each other. A plurality of connecting rods (34) are fixedly connected at equal intervals on one side adjacent to the second fan-shaped combined plates (31) and the two second fan-shaped combined plates (32); connecting shafts (36) are fixedly connected to the plate walls of the two second fan-shaped combined plates (32) on the side away from each other; a connecting frame (37) is rotatably sleeved on the shaft wall of the connecting shaft (36) on the side close to the third hinge (33); a receiving plate (38) is fixedly connected to the bottom of the connecting frame (37); grooves (39) are provided on both sides of the receiving plate (38); and a flip plate (310) is hingedly connected inside the groove (39) via a pin shaft; The ash cleaning assembly (4) comprises a plurality of support rods (41) and an ash guide plate (42), wherein the ash guide plate (42) is arranged below the support rods (41), the ash guide plate (42) is an elastic metal plate, and one end of the ash guide plate (42) is fixedly connected to the inner wall of the inner cavity (11), the other end of the ash guide plate (42) passes through the box body (1), and an ash discharge groove (43) is formed on the outer wall of the box body (1) corresponding to the ash guide plate (42), and the end of the ash guide plate (42) is movable through the ash discharge groove (43) and extends out of the box body (1). The rods (41) are rotated to pass through the box body (1), and a first tooth groove (44) is formed on the rod wall at one end of the support rod (41) passing through the box body (1), and a second tooth groove (45) is formed on the shaft wall of the rotating shaft (17), and a first transmission belt (46) is connected to the transmission sleeves on the first tooth groove (44) and the second tooth groove (45), and a rotating column (47) is fixedly connected to the shaft wall of the rotating shaft (17) extending to the inside of the inner cavity (11), and the rotating column (47) contacts the outer wall of the ash guide plate (42), and a shifting block (48) is fixedly connected to the outer wall of the rotating column (47); One end of the driving shaft (5) that rotates through the housing (1) is fixedly connected to a first square shaft (52); a second square shaft (55) is arranged between the two first square shafts (52); the second square shaft (55) is rotatably inserted into the outer wall of the housing (1); a first inner square shaft sleeve (53) is slidably sleeved on the shaft wall of the first square shaft (52); a first gear (54) is fixedly sleeved on the outer wall of the first inner square shaft sleeve (53); a second inner square shaft sleeve (57) and a first transmission wheel (56) are slidably sleeved on the shaft wall of the second square shaft (55); a second gear (58) is fixedly sleeved on the outer wall of the second inner square shaft sleeve (57); the second gear (58) is meshingly connected with the first gears (54) on both sides; a corresponding second transmission wheel (59) is fixedly sleeved on the shaft wall of the rotating shaft (17) located below the first transmission wheel (56); the second transmission wheel (59) is transmission-connected to the first transmission wheel (56) via a second transmission belt (510); A first dust cover (13) is fixedly connected to the outer wall of one end of the box body (1).

3. The oven exhaust structure according to claim 2, characterized in that: A second dust cover (16) is hingedly connected to an outer wall of the box body (1) at one end close to the first dust cover (13) via a first hinge (15), and the second dust cover (16) is arranged above the first dust cover (13).

4. The oven exhaust structure according to claim 1, characterized in that: A handle (23) is fixedly connected to the outer wall of the box cover (21) on the side away from the second hinge (22).

5. The oven exhaust structure according to claim 1, characterized in that: The bottom of the air guide cover (25) is fixedly connected to a discharge pipe (29), and a gate valve is provided at the end of the discharge pipe (29).

6. The oven exhaust structure according to claim 2, characterized in that: Continuous meshing teeth (35) are provided on the outer side walls of the first sector-shaped combined plate (31) and the second sector-shaped combined plate (32), and matching meshing grooves (51) are provided on the shaft wall of the drive shaft (5) corresponding to the meshing teeth (35).

7. The oven exhaust structure according to claim 2, characterized in that: The width of the receiving plate (38) is smaller than the distance between the two drive shafts (5).

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