Oven body structure of charcoal oven and charcoal oven

Abstract

The invention relates to the technical field of charcoal grills, and discloses an oven body structure of a charcoal grill and the charcoal grid.The oven body structure of the charcoal grill comprises a shell, a charcoal stove arranged in the shell in a sliding mode, an ash storage box arranged below the charcoal stove and a driving assembly used for driving the charcoal stove to ascend and descend, and a plurality of supporting cylinders are rotationally installed in the charcoal stove; a gap is formed between every two adjacent supporting cylinders, a plurality of through holes are formed in the peripheral walls of the supporting cylinders, and a gas conveying assembly used for forming negative pressure in inner cavities of the supporting cylinders is arranged on one side of the charcoal stove; real-time ash removal in combustion is achieved, the charcoal stove is driven to ascend and descend through the driving assembly during ash removal, the valve assembly and the ash receiving assembly are automatically in butt joint and opened, stove ash in the funnel can be discharged into the ash storage box without waiting for complete combustion of charcoal, meanwhile, the charcoal ash falling off from the surface of the charcoal is pumped out through negative pressure formed by the gas conveying assembly, and the ash removal efficiency is improved. The problem that in the prior art, ash can only be removed after combustion is finished, so that charcoal fire is scattered, and the baking quality is affected is solved.

Description

Technical Field

[0001] This invention relates to the field of charcoal grill technology, specifically to a charcoal grill body structure and a charcoal grill. Background Technology

[0002] A charcoal grill is an appliance used for baking ceramics and other food items. It typically consists of a grill body, lid, and grill rack. The grill body is generally made of metal, which has good thermal conductivity and sturdiness, allowing it to withstand high temperatures. Charcoal is placed inside the grill, and the heat generated by burning the charcoal is used for baking.

[0003] Chinese patent CN208269666U discloses a hydraulic ash removal system, including a base. A charcoal grill is fixedly connected to the upper surface of the base via a bracket. A base plate is hinged to the lower end of the charcoal grill. A first bushing is connected to the upper surface of the base via a shaft. A hydraulic cylinder is fixedly mounted on the surface of the first bushing. A limiting groove is fixedly connected to the lower surface of the base plate. Sealing blocks are fixedly connected to both sides of the limiting groove. A limiting block is slidably connected to the inner side of the limiting groove. A second bushing is connected to the lower surface of the limiting block via a shaft. The other end of the piston rod of the hydraulic cylinder is fixedly mounted to the outer surface of the second bushing. A threaded ring is fixedly connected to one side of the lower end of the charcoal grill. A threaded knob is threadedly connected to the inner side of the threaded ring. This hydraulic ash removal system can uniformly remove charcoal ash after burning, which is more convenient, simpler, and safer than traditional ash removal methods.

[0004] As shown in the aforementioned patent, existing charcoal grills often have an automatic ash removal structure on the grill body, and most adopt a technical solution of configuring a valve assembly at the bottom of the grill body. Under this existing technical solution, the ash can only be discharged by opening the valve assembly after the charcoal has completely burned out. It is impossible to clean up the ash in time during the charcoal combustion process, which makes it easy for the charcoal embers to fly into the grilling area and affect the grilling quality. Furthermore, after the ash cleaning operation is completed, charcoal needs to be refilled and ignited. Since the charcoal ignition process takes a long time, the entire process is cumbersome and complicated, resulting in technical problems such as low operating efficiency and poor ease of use.

[0005] Therefore, it is necessary to provide a charcoal grill body structure and a charcoal grill to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a furnace body structure and a charcoal grill, which achieves timely cleaning of charcoal ash during the charcoal combustion process by setting up a liftable charcoal grill, a valve assembly and an ash receiving assembly that connect to the ash storage box, and a reciprocating rotating structure of a gas supply assembly, a transmission assembly and a support cylinder.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a charcoal grill body structure, including a shell, a charcoal grill slidably disposed inside the shell, an ash storage box disposed below the charcoal grill, and a drive assembly for driving the charcoal grill to lift and lower. Multiple support cylinders are rotatably installed inside the charcoal grill, with gaps between adjacent support cylinders. Multiple through holes are opened on the outer peripheral wall of each support cylinder. A gas supply assembly for creating a negative pressure in the inner cavity of the support cylinder is disposed on one side of the charcoal grill. A funnel is connected to the bottom of the charcoal grill, and a valve assembly is disposed at the bottom of the funnel. An ash receiving assembly for docking with the valve assembly is connected to the top of the ash storage box.

[0008] A further configuration of the present invention is as follows: the gas delivery assembly includes a split pipe, a first gas delivery cylinder, and a second gas delivery cylinder. A connecting cylinder is fixedly installed at one end of the support cylinder near the split pipe, and the connecting cylinder is connected to the support cylinder. The top of the split pipe is provided with multiple connection ports, and the connecting cylinder is rotatably connected to the connection ports. The top end of the first gas delivery cylinder is fixedly connected to and communicates with the split pipe. The second gas delivery cylinder is coaxially arranged with the first gas delivery cylinder. The bottom of the first gas delivery cylinder extends into the second gas delivery cylinder, and the first gas delivery cylinder and the second gas delivery cylinder are slidably engaged. The bottom end of the second gas delivery cylinder is fixedly connected to a ash storage box. A conveying channel communicating with the second gas delivery cylinder is opened on the ash storage box. A sliding plate is slidably arranged inside the ash storage box, and a transmission assembly for driving the sliding plate to move is provided on the ash storage box.

[0009] A further provision of the present invention is that: an air inlet is connected to the bottom end of the conveying channel, an air outlet is connected to the top wall of the ash storage box near the air inlet, a filter screen is provided at the bottom of the air outlet, a first one-way valve is provided inside the air inlet, and a second one-way valve is provided inside the air outlet.

[0010] A further configuration of the present invention is as follows: a window is provided on the front wall of the housing, a slide block is slidably installed in the window, the slide block is fixedly connected to the charcoal stove, the driving assembly includes a handwheel, a drive shaft and a slider, the slider is fixedly connected to the slide block, the drive shaft passes through the slider, the drive shaft is threaded and threadedly connected to the slider, and the handwheel is drivenly connected to the drive shaft.

[0011] A further configuration of the present invention is as follows: the transmission assembly includes a first spring, a traction rope, a rope-winding wheel, a second gear, and a third rack. The sliding plate is elastically connected to the inner wall of the ash storage box via the first spring. A mounting base is fixedly installed at the top of the ash storage box, and a rotating shaft is rotatably installed on the mounting base. The rope-winding wheel and the second gear are both fixedly mounted on the rotating shaft. One end of the traction rope is fixedly connected to the sliding plate, and the other end of the traction rope passes through the side wall of the ash storage box and is fixedly connected to the rope-winding wheel. The top of the third rack is fixedly connected to the side wall of the charcoal furnace, and the third rack is adapted to the second gear.

[0012] A further configuration of the present invention is as follows: a plurality of mounting plates are fixedly installed on the inner sidewall of the housing; a connecting shaft is fixedly installed on the end of the support cylinder away from the connecting cylinder; a first gear is fixedly fitted on the connecting shaft; two first racks and one second rack are fixedly installed on the mounting plate; the first rack and the second rack are both adapted to the first gear; the two first racks and the second rack are set at different heights; and the first rack and the second rack are respectively located on both sides of the front wall of the mounting plate.

[0013] A further configuration of the present invention is as follows: the valve assembly includes a fixed frame, a sliding frame, and a first valve plate. The fixed frame is fixedly installed at the bottom end of the funnel, the sliding frame is sleeved on the fixed frame, and the sliding frame and the fixed frame are slidably engaged and elastically connected. The first valve plate is slidably installed at the bottom opening of the sliding frame, the first valve plate penetrates through the side wall of the sliding frame, and a transmission column is fixedly installed on the bottom wall of the portion of the first valve plate extending out of the sliding frame.

[0014] A further configuration of the present invention is as follows: the ash receiving assembly includes a docking frame and a second valve plate. The docking frame is fixedly installed on the top of the ash storage box and is connected to the ash storage box. The second valve plate is slidably installed at the top opening of the docking frame. The second valve plate penetrates the side wall of the docking frame, and the part of the second valve plate extending out of the docking frame has an adapter hole adapted to the transmission column. A transmission rod is fixedly installed on the bottom wall of the second valve plate away from the adapter hole, and the bottom end of the transmission rod extends into the ash storage box.

[0015] A further provision of the present invention is that an upper connecting plate is fixedly installed on the side wall of the fixed frame, and a lower connecting plate is fixedly installed on the side wall of the sliding frame, wherein the upper connecting plate and the lower connecting plate are elastically connected by a second spring.

[0016] A charcoal grill includes the grill body structure described in any one of the above claims.

[0017] In summary, the present invention has the following beneficial effects: This invention enables real-time ash removal during combustion. During ash removal, the charcoal furnace is raised and lowered by the drive component, so that the valve component and the ash receiving component are automatically connected and opened. The furnace ash in the funnel can be discharged into the ash storage box without waiting for the charcoal to burn completely. At the same time, the negative pressure formed by the gas conveying component is used to remove the ash that falls off the surface of the charcoal. This solves the problem in the prior art that ash removal can only be performed after combustion, which causes the charcoal fire to scatter and affect the baking quality. This invention uses the reciprocating rotation of the support cylinder to cause the ash to fall off, and the negative pressure ash extraction of the gas conveying component combined with the movement of the sliding plate to compress the ash. This reduces ash residue and scattering, and also reduces the ash storage volume. The device does not require an additional power supply. It relies on the lifting and lowering of the charcoal furnace to drive the movement of the sliding plate and the opening and closing of the valve. It is resistant to high temperatures and has high stability, avoiding the problem of short lifespan of electrical drive components under high temperature conditions. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is one of the schematic diagrams of the structure of the present invention after the shell is removed; Figure 3 This is the second schematic diagram of the structure of the present invention after the shell has been removed; Figure 4 This is a schematic diagram of the ash storage box and ash receiving assembly of the present invention; Figure 5 This is a side cross-sectional view of the charcoal furnace and ash storage box of the present invention. Figure 6 for Figure 5 A magnified structural diagram at point A; Figure 7 This is a schematic diagram of the structure of the charcoal furnace and valve assembly of the present invention; Figure 8 This is a schematic diagram of the structure of the support cylinder and the diversion pipe of the present invention; Figure 9 This is a schematic diagram of the mounting plate, the first rack, and the second rack of the present invention.

[0019] In the diagram: 1. Shell; 2. Charcoal furnace; 3. Support cylinder; 301. Through hole; 302. Connecting shaft; 4. Connecting cylinder; 5. Diverter pipe; 501. Connecting port; 6. Slide block; 7. Slider; 8. Drive shaft; 9. Handwheel; 10. Funnel; 11. Ash storage box; 1101. Conveying channel; 1102. Slide plate; 12. Second gas supply cylinder; 13. First spring; 14. Traction rope; 15. Mounting base; 16. Rotating shaft; 17. Rope winding wheel; 18. Second... 19. Gear; 20. Third rack; 21. First gear; 22. Mounting plate; 23. First rack; 24. Second rack; 25. Air outlet; 26. Filter screen; 27. First air supply cylinder; 28. Fixed frame; 29. ​​Sliding frame; 30. First valve plate; 31. Transmission column; 32. Docking frame; 33. Second valve plate; 34. Adaptor hole; 35. Transmission rod; 36. Upper connecting plate; 37. Lower connecting plate; 38. Second spring; 39. Air inlet. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Please see Figures 1-9In this embodiment of the invention, a charcoal grill structure includes a shell 1, a charcoal grill 2 slidably disposed inside the shell 1, an ash storage box 11 disposed below the charcoal grill 2, and a drive assembly for driving the charcoal grill 2 to rise and fall. The front wall of the ash storage box 11 is provided with a handle, allowing the ash storage box 11 to be pulled out. The top of the ash storage box 11 can be disassembled for cleaning. Multiple support cylinders 3 are rotatably installed inside the charcoal grill 2, with gaps between adjacent support cylinders 3, the gap width being 5mm-10mm. Multiple through holes 301 are opened on the outer peripheral wall of each support cylinder 3. These through holes 301 promote air circulation, providing sufficient oxygen for charcoal combustion, and also facilitate the falling and discharge of ash. A gas supply assembly is provided on one side of the charcoal grill 2 to create negative pressure inside the support cylinders 3. A funnel 10 is connected to the bottom of the charcoal grill 2, and a valve assembly is provided at the bottom of the funnel 10. The top of the ash storage box 11 is connected to... The furnace is equipped with an ash-collecting component for docking with the valve assembly. In actual use, charcoal is placed in the charcoal furnace 2, and after the charcoal is ignited, the food to be roasted is placed on the grill above the charcoal furnace 2, and the furnace door is closed for roasting. During the roasting process, the distance between the charcoal furnace 2 and the grill can be adjusted by driving the charcoal furnace 2 to rise and fall through the gap between the support cylinders 3 into the funnel 10. When there is a lot of ash in the charcoal furnace 2, in order to prevent the ash from moving onto the food with the airflow, the ash in the charcoal furnace 2 can be cleaned. During cleaning, the charcoal furnace 2 is driven to move downward through the drive assembly, so that the valve assembly docks with the ash-collecting component, and the valve assembly is opened, so that the ash in the funnel 10 falls downward into the ash storage box 11. The air is pumped out through the gas supply component, so that the negative pressure is formed in the support cylinder 3, and the ash that falls off the surface of the charcoal above the support cylinder 3 can be pumped into the ash storage box 11 through the gas supply component.

[0022] In this embodiment, preferably, the gas delivery assembly includes a split pipe 5, a first gas delivery cylinder 26, and a second gas delivery cylinder 12. A connecting cylinder 4 is fixedly installed at one end of the support cylinder 3 near the split pipe 5, and the connecting cylinder 4 is connected to the support cylinder 3. The top of the split pipe 5 is provided with multiple connection ports 501, and the connecting cylinder 4 is rotatably connected to the connection ports 501, with the connection points being rotatably sealed. The top end of the first gas delivery cylinder 26 is fixedly connected to and communicates with the split pipe 5. The second gas delivery cylinder 12 is coaxially arranged with the first gas delivery cylinder 26, and the bottom of the first gas delivery cylinder 26 extends into the second gas delivery cylinder 12, with the first gas delivery cylinder 26 and the second gas delivery cylinder 12 slidingly together. The first air supply cylinder 26 can be pulled out from the second air supply cylinder 12 to facilitate the removal of the ash storage box 11. During roasting, the first air supply cylinder 26 and the second air supply cylinder 12 are separated, allowing air to enter the support cylinder 3 through the first air supply cylinder 26, providing sufficient oxygen for charcoal combustion. In use, a blower or other air-blowing tool can be used to blow air into the first air supply cylinder 26 to ignite or increase the firepower. The bottom end of the second air supply cylinder 12 is fixedly connected to the ash storage box 11. The ash storage box 11 has a conveying channel 1101 that communicates with the second air supply cylinder 12. The conveying channel 1101 has an L-shaped structure. A sliding plate 1102 is slidably arranged inside the ash storage box 11. The outer wall of the ash storage box 11 is fitted to the inner wall of the ash storage box 11, so that the sliding plate 1102 can push the gas flow in the ash storage box 11 when it moves left and right. The ash storage box 11 is provided with a transmission component for driving the sliding plate 1102 to move. The bottom end of the conveying channel 1101 is connected to an air inlet 37, and the top wall of the ash storage box 11 is connected to an air outlet 24 near the air inlet 37. The bottom of the air outlet 24 is provided with a filter screen 25. The air inlet 37 is provided with a first one-way valve, and the air outlet 24 is provided with a second one-way valve. The first one-way valve allows gas to enter the ash storage box 11 through the conveying channel 1101 and the air inlet 37, while the gas in the ash storage box 11 cannot pass through the air inlet. The gas enters the conveying channel 1101 through the inlet 37. The second one-way valve allows the gas in the ash storage box 11 to be discharged through the outlet 24, while external gas cannot enter the ash storage box 11 through the outlet 24. When the slide plate 1102 moves away from the second air supply cylinder 12, the gas in the support cylinder 3 is drawn into the ash storage box 11 through the first air supply cylinder 26, the second air supply cylinder 12, the conveying channel 1101 and the inlet 37, thereby creating a negative pressure in the support cylinder 3, which in turn draws the ash from the surface of the charcoal into the ash storage box 11. When the slide plate 1102 moves closer to the second air supply cylinder 12, the gas in the ash storage box 11 is discharged through the outlet 24, and the ash is filtered through the filter screen 25.

[0023] In this embodiment, preferably, the front wall of the housing 1 has a window, and a furnace door is provided at the window. A slide block 6 is slidably installed inside the window, and the slide block 6 is fixedly connected to the charcoal furnace 2. The driving assembly includes a handwheel 9, a drive shaft 8, and a slider 7. The slider 7 is fixedly connected to the slide block 6, and the drive shaft 8 passes through the slider 7. The drive shaft 8 has a thread and is threadedly connected to the slider 7. The handwheel 9 is driven by the drive shaft 8. Specifically, the handwheel 9 is driven by the drive shaft 8 through a bevel gear set, so that rotating the handwheel 9 can drive the drive shaft 8 to rotate through the bevel gear set. When the drive shaft 8 rotates, it drives the slider 7 to rise and fall, thereby driving the charcoal furnace 2 to rise and fall through the slide block 6.

[0024] In this embodiment, preferably, the transmission assembly includes a first spring 13, a traction rope 14, a rope-winding wheel 17, a second gear 18, and a third rack 19. The sliding plate 1102 is elastically connected to the inner wall of the ash storage box 11 via the first spring 13. A mounting base 15 is fixedly installed on the top of the ash storage box 11, and a rotating shaft 16 is rotatably installed on the mounting base 15. The rope-winding wheel 17 and the second gear 18 are both fixedly mounted on the rotating shaft 16. One end of the traction rope 14 is fixedly connected to the sliding plate 1102, and the other end of the traction rope 14 passes through the side wall of the ash storage box 11 and is fixedly connected to the rope-winding wheel 17. The top of the third rack 19 is fixedly connected to the side wall of the charcoal furnace 2, and the third rack 19 is adapted to the second gear 18. The traction rope 14 is made of a high-temperature resistant material. When the charcoal furnace 2 moves downward to clean the ash, the charcoal furnace 2 drives the third rack 19 downward. When the third rack 19 moves to mesh with the second gear 18, the third rack 19 drives the second gear. When the second gear 18 rotates, it drives the rope-winding wheel 17 to rotate via the shaft 16, thereby winding the traction rope 14. This causes the slide plate 1102 to move away from the second air supply cylinder 12. Then, through the first air supply cylinder 26, the second air supply cylinder 12, the conveying channel 1101, and the air inlet 37, the gas in the support cylinder 3 is input into the ash storage box 11, thereby creating a negative pressure in the support cylinder 3. After the ash is cleaned, the charcoal furnace 2 moves upward, thereby driving the third rack 19 to move upward. This causes the third rack 19 to drive the second gear 18 to rotate in the opposite direction, which in turn drives the rope-winding wheel 17 to rotate in the opposite direction via the shaft 16, thereby releasing the traction rope 14. Under the elastic action of the first spring 13, the slide plate 1102 moves towards the second air supply cylinder 12 to reset. The transmission component is a purely mechanical structure, which is simple and intuitive to operate, highly stable, not easily affected by high temperature environments, has a long service life, and does not require an additional power supply, making it energy-saving and environmentally friendly.

[0025] In this embodiment, preferably, a plurality of mounting plates 21 are fixedly installed on the inner sidewall of the housing 1, and a connecting shaft 302 is fixedly installed on the end of the support cylinder 3 away from the connecting cylinder 4. A first gear 20 is fixedly fitted on the connecting shaft 302. Two first racks 22 and one second rack 23 are fixedly installed on the mounting plate 21. The first racks 22 and the second rack 23 are both adapted to the first gear 20. The two first racks 22 and the second rack 23 are set at different heights, and the first racks 22 and the second rack 23 are respectively located on both sides of the front wall of the mounting plate 21. When the charcoal furnace 2 moves downward, The charcoal stove 2 drives the first gear 20 to move downwards via the connecting shaft 302. As the first gear 20 meshes with the first rack 22, the first rack 22 drives the first gear 20 to rotate. When the first gear 20 meshes with the second rack 23, the second rack 23 drives the first gear 20 to rotate in the opposite direction. When the first gear 20 rotates, it drives the support cylinder 3 to rotate via the connecting shaft 302, thereby enabling the support cylinder 3 to reciprocate. When the support cylinder 3 reciprocates, the charcoal on the support cylinder 3 can rotate, making it easier for the charcoal ash on the charcoal to fall off, and thus making it easier to clean the charcoal ash off the surface of the charcoal.

[0026] Please see Figures 4-7 In this embodiment of the invention, the valve assembly includes a fixed frame 27, a sliding frame 28, and a first valve plate 29. The fixed frame 27 is fixedly installed at the bottom end of the funnel 10. The sliding frame 28 is sleeved on the fixed frame 27 and is slidably engaged with the fixed frame 27. The sliding frame 28 and the fixed frame 27 are elastically connected. The first valve plate 29 is slidably installed at the bottom opening of the sliding frame 28. The first valve plate 29 penetrates the side wall of the sliding frame 28, and a transmission column 30 is fixedly installed on the bottom wall of the portion of the first valve plate 29 extending out of the sliding frame 28.

[0027] In this embodiment, preferably, the ash receiving assembly includes a docking frame 31 and a second valve plate 32. The docking frame 31 is fixedly installed on the top of the ash storage box 11 and is connected to the ash storage box 11. The second valve plate 32 is slidably installed at the top opening of the docking frame 31. The second valve plate 32 penetrates the side wall of the docking frame 31, and the part of the second valve plate 32 extending out of the docking frame 31 has an adapter hole 3201 that is adapted to the transmission column 30. A transmission rod 33 is fixedly installed on the bottom wall of the second valve plate 32 away from the adapter hole 3201. The bottom end of the transmission rod 33 extends into the ash storage box 11.

[0028] In this embodiment, preferably, an upper connecting plate 34 is fixedly installed on the side wall of the fixed frame 27, and a lower connecting plate 35 is fixedly installed on the side wall of the sliding frame 28. The upper connecting plate 34 and the lower connecting plate 35 are elastically connected by a second spring 36.

[0029] When the charcoal stove 2 moves downward, it causes the fixed frame 27 and the sliding frame 28 to move downward, thereby causing the transmission column 30 to move downward. This allows the transmission column 30 to gradually insert into the adapter hole 3201. After the bottom wall of the sliding frame 28 contacts the top wall of the docking frame 31, the sliding plate 1102 contacts the transmission rod 33. As the sliding plate 1102 moves away from the second gas cylinder 12, it pushes the second valve plate 32 away from the second gas cylinder 12 via the transmission rod 33, causing the top opening of the docking frame 31 to open. Simultaneously, as the second valve plate 32 moves, it drives the first valve plate 29 to move via the transmission column 30, causing the bottom opening of the sliding frame 28 to open. The opening allows the ash in the funnel 10 to fall into the ash storage box 11 through the fixed frame 27, sliding frame 28 and docking frame 31. The ash falls onto the side of the slide plate 1102 near the second gas cylinder 12, so that after the bottom wall of the sliding frame 28 is in contact with the top wall of the docking frame 31, the first valve plate 29 and the second valve plate 32 can open automatically. When the slide plate 1102 is reset, it can also compress the ash in the ash storage box 11 to reduce the volume occupied. No manual operation is required, and there is no need to set an electrical drive structure in the shell 1 for driving. This avoids the problem that the electrical drive components in the high-temperature charcoal oven are easily affected by the high temperature, resulting in a reduced service life.

[0030] The present invention also discloses a charcoal grill, including the grill body structure described in any of the above-mentioned charcoal grills.

[0031] Working principle: When a large amount of ash is generated in the charcoal furnace 2, in order to prevent the ash from moving onto the food with the airflow, the ash in the charcoal furnace 2 can be cleaned. During cleaning, the charcoal furnace 2 is driven downward by the drive component. When the charcoal furnace 2 moves downward, it drives the fixed frame 27 and the sliding frame 28 downward, thereby driving the transmission column 30 downward, so that the transmission column 30 gradually inserts into the adapter hole 3201. After the bottom wall of the sliding frame 28 contacts the top wall of the docking frame 31, the sliding plate 1102 contacts the transmission rod 33. As the sliding plate 1102 moves away from the second conveyor... As the air cylinder 12 moves, the slide plate 1102 pushes the second valve plate 32 away from the second air cylinder 12 via the transmission rod 33, causing the top opening of the docking frame 31 to open. At the same time, as the second valve plate 32 moves, it drives the first valve plate 29 to move via the transmission column 30, causing the bottom opening of the sliding frame 28 to open. This allows the carbon ash in the funnel 10 to fall into the ash storage box 11 through the fixed frame 27, the sliding frame 28, and the docking frame 31. The carbon ash falls onto the side of the slide plate 1102 closest to the second air cylinder 12, thus achieving the discharge and collection of carbon ash. Meanwhile, when the charcoal furnace 2 moves downward to clean the ash, the charcoal furnace 2 drives the third rack 19 to move downward. When the third rack 19 moves to mesh with the second gear 18, the third rack 19 drives the second gear 18 to rotate. When the second gear 18 rotates, it drives the rope wheel 17 to rotate through the shaft 16, thereby winding the traction rope 14, causing the slide plate 1102 to move away from the second air supply cylinder 12. Then, through the first air supply cylinder 26, the second air supply cylinder 12, the conveying channel 1101 and the air inlet 37, the gas in the support cylinder 3 is input into the ash storage box 11, thereby creating a negative pressure in the support cylinder 3. This allows the ash that falls off the charcoal surface above the support cylinder 3 to be drawn into the ash storage box 11 through the air supply component, thereby reducing the ash in the charcoal furnace 2 and preventing the ash from adhering to the surface of the roasted food. Furthermore, as the charcoal stove 2 moves downward, it drives the first gear 20 to move downward via the connecting shaft 302. As the first gear 20 meshes with the first rack 22, the first rack 22 drives the first gear 20 to rotate. When the first gear 20 meshes with the second rack 23, the second rack 23 drives the first gear 20 to rotate in the opposite direction. When the first gear 20 rotates, it drives the support cylinder 3 to rotate via the connecting shaft 302, thereby enabling the support cylinder 3 to reciprocate. When the support cylinder 3 reciprocates, the charcoal on the support cylinder 3 can rotate, making it easier for the charcoal ash on the charcoal to fall off, and thus making it easier to clean the charcoal ash off the surface of the charcoal.

[0032] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. A charcoal grill body structure, comprising a shell, a charcoal grill slidably disposed inside the shell, an ash storage box disposed below the charcoal grill, and a drive assembly for driving the charcoal grill to rise and fall, characterized in that: The charcoal furnace has multiple support cylinders rotatably installed inside, with gaps between adjacent support cylinders. The outer peripheral wall of the support cylinder has multiple through holes. A gas conveying component is provided on one side of the charcoal furnace to create a negative pressure in the inner cavity of the support cylinder. A funnel is connected to the bottom of the charcoal furnace, and a valve assembly is provided at the bottom of the funnel. An ash receiving component is connected to the top of the ash storage box for docking with the valve assembly.

2. The furnace body structure of a charcoal grill according to claim 1, characterized in that: The gas delivery assembly includes a split pipe, a first gas delivery cylinder, and a second gas delivery cylinder. A connecting cylinder is fixedly installed at one end of the support cylinder near the split pipe, and the connecting cylinder is connected to the support cylinder. The top of the split pipe is provided with multiple connection ports, and the connecting cylinder is rotatably connected to the connection ports. The top end of the first gas delivery cylinder is fixedly connected to and communicates with the split pipe. The second gas delivery cylinder is coaxially arranged with the first gas delivery cylinder. The bottom of the first gas delivery cylinder extends into the second gas delivery cylinder, and the first gas delivery cylinder and the second gas delivery cylinder are slidably engaged. The bottom end of the second gas delivery cylinder is fixedly connected to a dust storage box. A conveying channel communicating with the second gas delivery cylinder is opened on the dust storage box. A sliding plate is slidably arranged inside the dust storage box, and a transmission assembly for driving the sliding plate to move is provided on the dust storage box.

3. The furnace body structure of a charcoal grill according to claim 2, characterized in that: An air inlet is connected to the bottom of the conveying channel, and an air outlet is connected to the top wall of the ash storage box near the air inlet. A filter screen is installed at the bottom of the air outlet, a first one-way valve is installed inside the air inlet, and a second one-way valve is installed inside the air outlet.

4. The furnace body structure of a charcoal grill according to claim 1, characterized in that: The front wall of the housing has a window, and a slide block is slidably installed in the window. The slide block is fixedly connected to the charcoal stove. The drive assembly includes a handwheel, a drive shaft, and a slider. The slider is fixedly connected to the slide block. The drive shaft passes through the slider and has a thread that is threadedly connected to the slider. The handwheel is driven by the drive shaft.

5. The furnace body structure of a charcoal grill according to claim 2, characterized in that: The transmission assembly includes a first spring, a traction rope, a rope-winding wheel, a second gear, and a third rack. The sliding plate is elastically connected to the inner wall of the ash storage box via the first spring. A mounting base is fixedly installed on the top of the ash storage box, and a rotating shaft is rotatably installed on the mounting base. The rope-winding wheel and the second gear are both fixedly mounted on the rotating shaft. One end of the traction rope is fixedly connected to the sliding plate, and the other end of the traction rope passes through the side wall of the ash storage box and is fixedly connected to the rope-winding wheel. The top of the third rack is fixedly connected to the side wall of the charcoal furnace, and the third rack is adapted to the second gear.

6. The furnace body structure of a charcoal grill according to claim 1, characterized in that: Multiple mounting plates are fixedly installed on the inner sidewall of the housing. A connecting shaft is fixedly installed at the end of the support cylinder away from the connecting cylinder. A first gear is fixedly fitted on the connecting shaft. Two first racks and one second rack are fixedly installed on the mounting plate. The first rack and the second rack are both adapted to the first gear. The two first racks and the second rack are set at different heights. The first rack and the second rack are located on both sides of the front wall of the mounting plate.

7. The furnace body structure of a charcoal grill according to claim 2, characterized in that: The valve assembly includes a fixed frame, a sliding frame, and a first valve plate. The fixed frame is fixedly installed at the bottom of the funnel. The sliding frame is sleeved on the fixed frame and is slidably engaged with the fixed frame. The sliding frame and the fixed frame are elastically connected. The first valve plate is slidably installed at the bottom opening of the sliding frame. The first valve plate passes through the side wall of the sliding frame, and a transmission column is fixedly installed on the bottom wall of the portion of the first valve plate extending out of the sliding frame.

8. The furnace body structure of a charcoal grill according to claim 7, characterized in that: The ash receiving assembly includes a docking frame and a second valve plate. The docking frame is fixedly installed on the top of the ash storage box and is connected to the ash storage box. The second valve plate is slidably installed at the top opening of the docking frame. The second valve plate penetrates the side wall of the docking frame, and the part of the second valve plate extending out of the docking frame has an adapter hole adapted to the transmission column. A transmission rod is fixedly installed on the bottom wall of the second valve plate away from the adapter hole, and the bottom end of the transmission rod extends into the ash storage box.

9. The furnace body structure of a charcoal grill according to claim 7, characterized in that: An upper connecting plate is fixedly installed on the side wall of the fixed frame, and a lower connecting plate is fixedly installed on the side wall of the sliding frame. The upper connecting plate and the lower connecting plate are elastically connected by a second spring.

10. A charcoal grill, characterized in that: The furnace body structure includes the charcoal grill as described in any one of claims 1-9.

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