Barbecue oven capable of manually adjusting heating temperature
By manually adjusting the opening and closing of the control box cover through the meshing transmission of the worm gear and gear, the problem of difficult temperature adjustment in traditional charcoal grills is solved, achieving precise temperature control and convenient operation, making it suitable for outdoor grilling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINHUA XINAN ELECTRICAL CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional charcoal grills are difficult to adjust precisely at the heating temperature, and their complex structure relies on an external power source, reducing their practicality for outdoor use.
A barbecue grill comprising a furnace chamber, grill rack, and charcoal box assembly was designed. The opening and closing of the box lid is controlled by manually adjusting the meshing transmission of the worm gear and gear, enabling precise adjustment of the flame overflow. It has a reverse self-locking characteristic to maintain temperature stability, and improves ease of operation through a straight-through charcoal filling port and optimized airflow path.
It achieves precise control of heating temperature, enhances the grilling experience, simplifies operation, is suitable for outdoor environments, and requires no external power supply.
Smart Images

Figure CN224269069U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of barbecue tools, and in particular to a barbecue grill with manually adjustable heating temperature. Background Technology
[0002] In both outdoor and home barbecues, the grill is a common cooking appliance, and its heating performance directly affects the cooking results and taste of the food. While traditional charcoal grills are simple and easy to use, they have significant shortcomings in terms of temperature control.
[0003] Most barbecue grills on the market currently use an open charcoal box design, and their heating temperature depends on the amount of charcoal added. Once the charcoal is lit, the heating temperature remains at a relatively fixed level, making it difficult to precisely adjust according to different ingredients and cooking needs. For example, when grilling foods that require slow, low-temperature grilling followed by high-temperature browning, such as steak, it is difficult for cooks to achieve the ideal cooking temperature variations using only traditional barbecue grills. This often results in food that is either undercooked or burnt on the outside and raw on the inside, significantly affecting the quality and taste of the food.
[0004] In addition, while some barbecue grills have certain temperature control functions, they are often complex in structure and cumbersome to operate, requiring an additional power source or complex mechanical devices. This not only increases the manufacturing cost and the barrier to entry for using the barbecue grill, but also reduces its practicality in outdoor or other environments without power. Utility Model Content
[0005] The technical problem this invention aims to solve is to provide a charcoal grill with manually adjustable heating temperature. The heating temperature can be controlled manually without relying on an external power source, thus solving the problem of temperature regulation faced by traditional charcoal grills and improving the grilling experience.
[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:
[0007] A barbecue grill with manually adjustable heating temperature includes a furnace chamber, a grilling rack, and a charcoal box assembly. The charcoal box assembly is installed inside the furnace chamber, and the grilling rack is installed above the charcoal box assembly. The charcoal box assembly includes a bottom box assembly, an upper box, a charcoal rack, and an opening and closing assembly. The bottom box assembly is fixedly installed at the bottom of the furnace chamber, and the bottom of the upper box is connected to the bottom box assembly. The upper box includes a box body and a box lid, and the box lid is rotatably connected to the box body. The charcoal rack is installed at the bottom of the box body. The opening and closing assembly includes a rotating rod, a worm gear, a gear, and a connecting rod. The worm gear is fixedly installed on the rotating rod, and the gear is fixedly installed at one end of the connecting rod. The worm gear and the gear mesh and drive each other. The edge of the box lid is fixed to the connecting rod, and the edge of the box body is rotatably connected to the connecting rod.
[0008] In this design, the user only needs to slightly rotate the lever to drive the connecting rod through the meshing transmission of the worm gear and gear, thereby controlling the opening and closing movement and angle of the lid. When the lid is fully closed, the grill uses a steaming method to heat the food, avoiding direct contact between the flame and the grill rack; when the lid is open, the flame directly acts on the grill rack to heat the food. By adjusting the opening angle of the lid, the amount of flame overflow can be controlled, thus precisely adjusting the heating temperature to meet the specific grilling temperature requirements of different foods. Furthermore, the meshing transmission of the worm gear and gear not only ensures the stability of the lid opening and closing process, but the worm gear transmission system also has a reverse self-locking characteristic, ensuring that the adjusted lid opening remains constant without the need for additional fixing devices. This effectively prevents accidental displacement caused by vibration and other factors, ensuring long-term stability of temperature control. The grill using this design has wide applicability and practicality, effectively solving the problem of difficult temperature adjustment in traditional charcoal grills, thereby improving the grilling experience.
[0009] Furthermore, a charcoal feeding port is provided on the front wall of the furnace. The height from the bottom of the charcoal feeding port to the bottom of the furnace is the same as the height from the top of the charcoal box to the bottom of the furnace. The width of the lid is the same as the distance from the charcoal feeding port to the charcoal box. The outer edge of the lid can be rotated to the charcoal feeding port. The bottom of the charcoal feeding port is designed to be at the same height as the top of the charcoal box. When the lid is rotated to the charcoal feeding port position, a straight channel for charcoal feeding is formed between the charcoal feeding port and the lid. The charcoal blocks can slide directly into the interior of the box along the lid, avoiding the risk of having to remove the grill and soiling the food when adding charcoal from the top, significantly improving the convenience of adding charcoal.
[0010] Furthermore, the oven features two lids, symmetrically mounted on the oven body. Two connecting rods, gears, and worm gears are also provided. The two connecting rods are fixedly connected to the outer side of each lid and rotatably connected to the oven body. Two worm gears are spaced apart on the rotating rod, and two gears are mounted at one end of each connecting rod. The two worm gears and two gears mesh together for power transmission. This symmetrical opening and closing design not only optimizes the internal space layout of the barbecue grill, making space utilization more rational and efficient, but also effectively reduces the size of each lid, lightening the overall weight. This improves the stability of the lids during rotation and opening, reducing wobbling and imbalance caused by excessive size.
[0011] Furthermore, the base assembly includes a mounting section and an ash tray. The mounting section is located at the bottom of the furnace chamber, with both ends fixedly connected to the side walls of the furnace chamber. The mounting section has a hollow, channel-like structure, with an installation opening at one end. The ash tray is installed inside the mounting section through the installation opening and is slidably connected to the mounting section. The top of the mounting section communicates with the box body. The main purpose of this design is to collect the grease that falls during baking and the ash produced by burning charcoal, so that the ash tray can be easily pulled out for cleaning after the barbecue is finished.
[0012] Furthermore, an air inlet is provided on the side wall of the ash oil pan away from the mounting opening, and a vent is provided on the side of the mounting part away from the mounting opening. A baffle is provided on the outer side of the vent, and the baffle is slidably mounted on the outer side wall of the furnace. The design of the air inlet and vent is optimized to improve the airflow path. Air flows into the air inlet through the vent and eventually reaches the ash oil pan. Since the ash oil pan is placed below the charcoal rack, the introduction of air helps to promote the combustion of the charcoal blocks. In addition, the baffle on the outside of the vent can adjust the air intake, thereby controlling the combustion intensity.
[0013] Furthermore, a furnace lid is provided, which is rotatably connected to the furnace chamber. A smoke exhaust device is installed on the lid, comprising a smoke exhaust channel and a cover plate. The cover plate is located at the top of the smoke exhaust channel and is rotatably connected to it. The design of the smoke exhaust device facilitates the discharge of smoke from inside the barbecue oven when the lid is closed for steaming, thus preventing smoke from accumulating inside the oven.
[0014] Furthermore, it also includes two shelves, each installed on the outside of the oven chamber. These shelves provide convenient storage for various items when using the charcoal grill.
[0015] Furthermore, it also includes a support frame, which is fixed to the bottom of the furnace. The support frame is designed to provide additional support, especially when used on uneven outdoor ground, to prevent the furnace from tipping over or wobbling; on the other hand, it raises the bottom of the furnace to promote air circulation and help dissipate heat.
[0016] In conclusion, this type of barbecue grill with manually adjustable heating temperature has wide applicability and practicality. It allows for manual control of the heating temperature without relying on an external power source, thus solving the problem of temperature regulation faced by traditional charcoal barbecue grills and enhancing the barbecue experience. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0018] Figure 1 This is a schematic diagram of part of the structure of this utility model. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the structure of the carbon box assembly of this utility model;
[0020] Figure 3 This is a partial structural diagram of the present invention. Figure 2 ;
[0021] Figure 4 This is a schematic diagram of the internal structure of the furnace chamber of this utility model;
[0022] Figure 5 This is a schematic diagram of the furnace structure of this utility model;
[0023] Figure 6 This is a schematic diagram of the overall assembly structure of this utility model;
[0024] The components include: furnace chamber-1, charcoal inlet-11, baffle-12, grilling mesh-2, charcoal box assembly-3, bottom box assembly-31, mounting part-311, ash pan-312, air inlet-313, vent-314, upper box-32, box body-321, box cover-322, charcoal rack-33, opening and closing assembly-34, rotating rod-341, worm gear-342, gear-343, connecting rod-344, furnace cover-4, smoke exhaust device-5, smoke exhaust channel-51, cover plate-52, shelf-6, and bracket-7. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] In the description of this utility model, it should be understood that the orientation and positional relationship indicated by terms such as "up", "down", "left", "right", "front", "back", "vertical", "bottom", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0027] like Figures 1 to 3 The barbecue grill with manually adjustable heating temperature shown includes a furnace chamber 1, a grill rack 2, and a charcoal box assembly 3. The charcoal box assembly 3 is installed inside the furnace chamber 1, and the grill rack 2 is installed above the charcoal box assembly 3. The charcoal box assembly 3 includes a bottom box assembly 31, an upper box 32, a charcoal rack 33, and an opening and closing assembly 34. The bottom box assembly 31 is fixedly installed at the bottom of the furnace chamber 1. The bottom of the upper box 32 is connected to the bottom box assembly 31. The upper box 32 includes a box body 321 and a box cover 322. The box cover 322 is rotatably connected to the box body 321. The charcoal rack 33 is installed at the bottom of the box body 321. The opening and closing assembly 34 includes a rotating rod 341, a worm gear 342, a gear 343, and a connecting rod 344. The worm gear 342 is fixedly installed on the rotating rod 341, and the gear 343 is fixedly installed at one end of the connecting rod 344. The worm gear 342 and the gear 343 mesh and drive each other. The edge of the box cover 322 is fixed to the connecting rod 344, and the edge of the box body 321 is rotatably connected to the connecting rod 344.
[0028] In this design, the user only needs to lightly rotate the lever 341 to drive the connecting rod 344 through the meshing transmission of the worm gear 342 and the gear 343, thereby controlling the opening and closing movement and angle of the lid 322. When the lid 322 is fully closed, the grill uses a steaming method to heat the food, avoiding direct contact between the flame and the grill rack 2; when the lid 322 is open, the flame directly acts on the grill rack 2 to heat the food. By adjusting the opening angle of the lid 322, the amount of flame overflow can be controlled, thereby precisely adjusting the heating temperature to meet the specific grilling temperature requirements of different foods. In addition, the meshing transmission method of the worm gear 342 and the gear 343 not only ensures the stability of the opening and closing process of the lid 322, but also the worm gear 342 transmission system has a reverse self-locking characteristic, which allows the opening degree of the lid 322 to remain constant after adjustment, without the need for additional fixing devices, effectively preventing accidental displacement caused by vibration and other factors, and ensuring the long-term stability of temperature control. The barbecue grill designed in this way has wide applicability and practicality, and can effectively solve the problem of difficult temperature control in traditional charcoal barbecue grills, thereby improving the barbecue experience.
[0029] As a preferred option, such as Figure 4 As shown, a charcoal inlet 11 is provided on the front side wall of the furnace chamber 1. The height from the bottom of the charcoal inlet 11 to the bottom of the furnace chamber 1 is the same as the height from the top of the box body 321 to the bottom of the furnace chamber 1. The width of the box cover 322 is the same as the distance from the charcoal inlet 11 to the box body 321. The outer edge of the box cover 322 can be rotated to the charcoal inlet 11. The bottom of the charcoal inlet 11 and the top of the charcoal box are designed to be at the same height. When the box cover 322 is rotated to the position of the charcoal inlet 11, a straight charcoal feeding channel is formed between the charcoal inlet 11 and the box cover 322. The charcoal blocks can slide directly into the box body 321 along the box cover 322, avoiding the risk of needing to remove the grill rack 2 and soiling the food when adding charcoal from the top, and significantly improving the convenience of adding charcoal.
[0030] As a preferred option, such as Figure 2 As shown, two lids 322 are provided, symmetrically mounted on the box body 321. Two connecting rods 344, two gears 343, and two worm gears 342 are also provided. The two connecting rods 344 are fixedly connected to the outer side of each lid 322 and rotatably connected to the box body 321. The two worm gears 342 are spaced apart and mounted on the rotating rod 341. The two gears 343 are mounted at one end of each connecting rod 344, and the two worm gears 342 and two gears 343 mesh together for transmission. The symmetrical opening and closing design of the two lids 322 not only optimizes the internal space layout of the barbecue grill, making space utilization more rational and efficient, but also effectively reduces the size of each lid 322, lightening the overall weight. This improves the stability of the lids 322 during rotation and opening, reducing wobbling and imbalance caused by excessive size.
[0031] As a preferred option, such as Figure 2 and Figure 4 As shown, the bottom box assembly 31 includes a mounting part 311 and an ash tray 312. The mounting part 311 is located at the bottom of the furnace chamber 1, and its two ends are fixedly connected to the side walls of the furnace chamber 1. The mounting part 311 has a hollow channel structure, and one end of the mounting part 311 has an installation opening. The ash tray 312 is installed inside the mounting part 311 through the installation opening and is slidably connected to the mounting part 311. The top of the mounting part 311 communicates with the box body 321. The main purpose of this design is to collect the grease that falls during the baking process and the dust generated by the burning charcoal, so that the ash tray 312 can be directly pulled out for cleaning after the barbecue is finished.
[0032] As a preferred option, such as Figure 4 and Figure 5 As shown, an air inlet 313 is provided on the side wall of the ash pan 312 away from the mounting opening, and a vent 314 is provided on the side of the mounting part 311 away from the mounting opening. A baffle 12 is provided on the outer side of the vent 314, and the baffle 12 is slidably mounted on the outer side wall of the furnace 1. The design of the air inlet 313 and the vent 314 is optimized to improve the airflow path. Air flows into the air inlet 313 through the vent 314 and finally reaches the ash pan 312. Since the ash pan 312 is placed below the carbon frame 33, the introduction of air helps to promote the combustion of the carbon blocks. In addition, the baffle 12 on the outside of the vent 314 can adjust the air intake, thereby controlling the combustion intensity.
[0033] As a preferred option, such as Figure 6 As shown, a furnace cover 4 is also provided, which is rotatably connected to the furnace chamber 1. A smoke exhaust device 5 is provided on the furnace cover 4. The smoke exhaust device 5 includes a smoke exhaust channel 51 and a cover plate 52. The cover plate 52 is located at the top of the smoke exhaust channel 51 and is rotatably connected to the smoke exhaust channel 51. The design of the smoke exhaust device 5 facilitates the discharge of smoke inside the barbecue oven when the furnace cover 4 is closed for steaming, thereby preventing smoke from accumulating inside the oven.
[0034] As a preferred option, such as Figure 6 As shown, it also includes two shelves 6, which are respectively installed on the outside of the furnace chamber 1. The shelves are provided to facilitate the placement of various items when using the charcoal grill.
[0035] As a preferred option, such as Figure 6 As shown, it also includes a bracket 7, which is fixed to the bottom of the furnace chamber 1. The design of the bracket 7 provides additional support, especially when used on uneven outdoor ground, to prevent the furnace from tipping over or shaking; on the other hand, it raises the bottom of the furnace chamber 1 to promote air circulation and help dissipate heat.
[0036] In conclusion, this type of barbecue grill with manually adjustable heating temperature has wide applicability and practicality. It allows for manual control of the heating temperature without relying on an external power source, thus solving the problem of temperature regulation faced by traditional charcoal barbecue grills and enhancing the barbecue experience.
[0037] In summary, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A barbecue grill with manually adjustable heating temperature, comprising a furnace chamber, a grill rack, and a charcoal box assembly, wherein the charcoal box assembly is installed inside the furnace chamber, and the grill rack is installed above the charcoal box assembly, characterized in that: The charcoal box assembly includes a bottom box assembly, an upper box, a charcoal rack, and an opening and closing assembly. The bottom box assembly is fixedly installed at the bottom of the furnace chamber. The bottom of the upper box is connected to the bottom box assembly. The upper box includes a box body and a box cover. The box cover is rotatably connected to the box body. The charcoal rack is installed at the bottom of the box body. The opening and closing assembly includes a rotating rod, a worm gear, a gear, and a connecting rod. The worm gear is fixedly installed on the rotating rod. The gear is fixedly installed at one end of the connecting rod. The worm gear and the gear mesh and drive each other. The edge of the box cover is fixed to the connecting rod. The edge of the box body is rotatably connected to the connecting rod.
2. The barbecue grill with manually adjustable heating temperature according to claim 1, characterized in that: A carbon-filling port is provided on the front side wall of the furnace. The height from the bottom of the carbon-filling port to the bottom of the furnace is the same as the height from the top of the box to the bottom of the furnace. The width of the box cover is the same as the distance from the carbon-filling port to the box body. The outer edge of the box cover can be rotated to the carbon-filling port.
3. The barbecue grill with manually adjustable heating temperature according to claim 2, characterized in that: The box has two lids, which are symmetrically installed on the box body. There are also two connecting rods, gears, and worm gears. The two connecting rods are fixedly connected to the outside of the lids and rotatably connected to the box body. The two worm gears are installed on the rotating rods at intervals. The two gears are installed at one end of the two connecting rods. The two worm gears and the two gears mesh and drive each other.
4. The barbecue grill with manually adjustable heating temperature according to claim 1, characterized in that: The bottom box assembly includes a mounting part and an ash oil tray. The mounting part is located at the bottom of the furnace. Both ends of the mounting part are fixedly connected to the side wall of the furnace. The mounting part is a hollow channel structure. One end of the mounting part has an installation port. The ash oil tray is installed inside the mounting part through the installation port and is slidably connected to the mounting part. The top end of the mounting part is connected to the box body.
5. The barbecue grill with manually adjustable heating temperature according to claim 4, characterized in that: An air inlet is provided on the side wall of the ash pan away from the installation port, and a vent is provided on the side of the mounting part away from the installation port. A baffle is provided on the outside of the vent, and the baffle is slidably installed on the outer side wall of the furnace.
6. The barbecue grill with manually adjustable heating temperature according to claim 3, characterized in that: It is also equipped with a furnace cover, which is rotatably connected to the furnace chamber. The furnace cover is equipped with a smoke exhaust device, which includes a smoke exhaust channel and a cover plate. The cover plate is located at the top of the smoke exhaust channel and is rotatably connected to the smoke exhaust channel.
7. The barbecue grill with manually adjustable heating temperature according to claim 6, characterized in that: It also includes two shelves, which are respectively installed on the outside of the furnace.
8. The barbecue grill with manually adjustable heating temperature according to claim 7, characterized in that: It also includes a support frame, which is fixed to the bottom of the furnace.