Intelligent gas cooker
By integrating a smoke chamber, smoke inlet, and multi-layer filter into a three-pronged stirring rod structure in a gas-fired cooking appliance, the problems of oil fume diffusion and space occupation are solved, oil fume purification and quantitative seasoning dispensing are achieved, and cooking efficiency and health are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-26
- Publication Date
- 2026-03-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing gas-fired cooking machines cause severe oil fume dispersion during cooking, polluting the environment and endangering health. They also take up a lot of space and cannot effectively integrate an oil fume treatment module.
A three-pronged stirring rod integrating a smoke chamber, smoke inlet, oil fume duct, and multi-layer filter screen was designed. Combined with a stirring structure driven by a servo motor, it can achieve on-site adsorption and purification of oil fumes. The precise quantitative dispensing of seasonings is achieved through a covered seasoning container and a syringe-type metering pump.
It effectively solves the problems of oil fume diffusion pollution and space occupation, ensures that food is heated evenly, and accurately measures the amount of seasoning, thereby improving cooking efficiency and space utilization, and ensuring health and standardized cooking.
Smart Images

Figure CN121754045A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cooking equipment technology, specifically to an intelligent gas-fired cooking machine. Background Technology
[0002] Gas-fired stir-fry machines are intelligent kitchen cooking devices that use clean energy sources such as natural gas and liquefied petroleum gas as their primary heat source. Through a built-in mechanical transmission structure, precise temperature control module, and automatic seasoning device, they simulate the force and frequency of manual stir-frying, the rhythm of heat adjustment, and the timing of seasoning, completely replicating the core process of high-heat, fast-cooking in Chinese cuisine. Their core advantages lie in retaining the rapid heating and strong heat output of gas-fired heat sources, meeting the demands of crisp vegetables and tender meats in Chinese cooking, while addressing the pain points of insufficient heat and inferior flavor in electric heating equipment. Furthermore, their automated design enables semi-automated or fully automated operation of key steps such as ingredient addition, stir-frying, temperature control, seasoning, and serving, significantly reducing the technical threshold and labor intensity of manual operation. Currently, they are widely used in various scenarios such as home kitchens and commercial catering, becoming an important device for improving cooking efficiency and ensuring standardized food preparation.
[0003] However, existing gas-fired cooking machines have significant functional synergy deficiencies in actual use: because they lack an effective fume treatment module, the large amount of fumes generated during high-temperature stir-frying must be absorbed and treated by a separately installed range hood. However, once the fumes are generated from the pan, they quickly spread outwards. Traditional range hoods have fixed air intake positions and a certain vertical distance from the inner liner of the pan, resulting in a long fume extraction path and a high escape rate. Some fumes easily spread into the kitchen space, polluting walls, cabinets, and other surfaces, and may even be inhaled by the cook, harming their health. At the same time, separate cooking machines and range hoods require more installation space, limiting the space utilization of small family kitchens or compact commercial kitchens. Therefore, we propose a new type of intelligent gas-fired cooking machine. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides an intelligent gas-fired cooking machine that effectively solves the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent gas-fired cooking machine, comprising a gas stove and a mechanical arm fixedly installed on the back of the gas stove, wherein a stirring structure is provided directly below the execution end of the mechanical arm.
[0006] The stirring structure includes a servo motor, the output end of which is fixedly mounted with a three-pronged stirring rod. A pot lid is fixedly mounted on the three-pronged stirring rod via bearings. A partition plate adapted to the three-pronged stirring rod is sealed and fixedly mounted inside the vertical branch of the three-pronged stirring rod, dividing the inner cavity of the three-pronged stirring rod into a smoke chamber and a seasoning chamber. An oil fume adsorption box is fixedly mounted on the outside of the vertical branch of the three-pronged stirring rod via a fixing sleeve, which is fixedly connected to the three-pronged stirring rod. An oil fume adsorption filter is fixedly mounted inside the oil fume adsorption box, which is connected to the inner cavity of the smoke chamber via an oil fume guide pipe. Several smoke holes evenly distributed on the inclined branch of the three-pronged stirring rod are provided on the outside of the smoke chamber.
[0007] Preferably, the oil fume adsorption filter is composed of multiple layers of filter mesh, and from the inside out, they are metal filter mesh, non-woven fabric and activated carbon filter sheet.
[0008] Preferably, both ends of the oil fume duct are fixedly connected and communicate with the oil fume adsorption box and the three-pronged stirring rod, respectively, and a purified gas exhaust pipe for discharging purified gas is also fixedly installed on the oil fume adsorption box.
[0009] Preferably, a covered seasoning container is fixedly installed on the outside of the vertical branch of the three-pronged stirring rod via a fixing sleeve. A guide pipe communicating with the inner cavity of the seasoning chamber is fixedly installed at the bottom of the covered seasoning container. A syringe-type metering pump for quantitatively conveying seasoning is fixedly installed on the guide pipe. An outlet is provided on the outside of the seasoning chamber, which is opened on another inclined branch of the three-pronged stirring rod. A baffle plate located obliquely above the outlet and inclined is fixedly installed in the inner cavity of the seasoning chamber.
[0010] Preferably, the actuator of the robotic arm is fixedly equipped with an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected to a servo motor.
[0011] Preferably, a stove rack for supporting a wok is movably installed on the burner cap of the gas stove, and the wok is movably placed on the stove rack, with the wok and the lid being sealed and compatible.
[0012] Preferably, a seasoning storage area is provided on one side of the top of the gas stove, and several seasoning storage containers for storing spare seasonings are movably placed on the seasoning storage area.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. By setting up a three-pronged stirring rod with integrated smoke chamber and smoke inlet, and a smoke adsorption box with oil fume guide pipe and multi-layer composite filter, the oil fume can be quickly adsorbed and purified nearby, avoiding the spread of oil fume and pollution of the environment and harm to human health. Moreover, there is no need to install an additional independent range hood, which greatly improves the space utilization rate and solves the pain points of high oil fume escape rate and large space occupation of existing equipment.
[0015] 2. By setting up a three-pronged stirring rod that can rotate under the drive of a servo motor, the intensity and frequency of stir-frying over high heat are simulated to ensure that the food is heated evenly and does not burn. This fully utilizes the advantages of gas heating up quickly and with strong firepower to ensure the crisp or tender texture required for Chinese cooking.
[0016] 3. By setting up a three-pronged stirring rod with an integrated seasoning chamber and discharge port, and combining it with a covered seasoning container, a syringe-type metering pump and a baffle plate, precise metering of seasonings can be achieved. The seasonings are mixed with the ingredients simultaneously during the stirring process, ensuring uniform seasoning and standardized cooking, and reducing the threshold for manual operation. Attached Figure Description
[0017] Figure 1 This is a complete structural schematic diagram of the present invention;
[0018] Figure 2 This is an enlarged schematic diagram of the stirring structure of the present invention;
[0019] Figure 3 For the present invention Figure 2 Another perspective structural diagram;
[0020] Figure 4 This is a schematic cross-sectional view of the three-pronged stirring rod of the present invention;
[0021] Figure 5 This is a cross-sectional structural diagram of the oil fume adsorption box of the present invention.
[0022] In the picture:
[0023] 1. Gas stove; 2. Robotic arm; 3. Stirring structure; 31. Servo motor; 32. Three-pronged stirring rod; 33. Pot lid; 34. Partition plate; 35. Smoke chamber; 36. Seasoning chamber; 37. Oil fume adsorption box; 38. Oil fume adsorption filter; 39. Oil fume duct; 310. Smoke hole; 311. Seasoning container with lid; 312. Feed guide pipe; 313. Syringe-type metering pump; 314. Discharge port; 315. Baffle plate; 4. Electric telescopic rod; 5. Stove frame; 6. Wok; 7. Seasoning storage container; 8. Fixing sleeve. Detailed Implementation
[0024] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.
[0025] This invention provides a technical solution:
[0026] Please see Figures 1-5 A smart gas-fired cooking machine includes a gas stove 1 and a robotic arm 2 fixedly installed on the back of the gas stove 1. A stirring structure 3 is provided directly below the execution end of the robotic arm 2.
[0027] The stirring structure 3 includes a servo motor 31. A three-pronged stirring rod 32 is fixedly installed at the output end of the servo motor 31. A pot lid 33 is fixedly installed on the three-pronged stirring rod 32 through bearings. A partition plate 34 adapted to the three-pronged stirring rod 32 is fixedly installed in the inner cavity of the vertical branch pipe of the three-pronged stirring rod 32. The partition plate 34 divides the inner cavity of the three-pronged stirring rod 32 into a smoke chamber 35 and a seasoning chamber 36. An oil fume adsorption box 37 is fixedly installed on the outside of the vertical branch pipe of the three-pronged stirring rod 32 through a fixing sleeve 8. The fixing sleeve 8 is fixedly connected to the three-pronged stirring rod 32. An oil fume adsorption filter 38 is fixedly installed in the inner cavity of the oil fume adsorption box 37. The oil fume adsorption box 37 is connected to the inner cavity of the smoke chamber 35 through an oil fume guide pipe 39. A number of smoke holes 310 are provided on the outside of the smoke chamber 35, which are evenly distributed on the inclined branch pipe of the three-pronged stirring rod 32.
[0028] During operation, the servo motor 31 drives the three-pronged stirring rod 32 to rotate. The pot lid 33 is sealed to the wok 6 to prevent the spread of oil fumes. The oil fumes generated during cooking enter the smoke chamber 35 through the smoke hole 310 on the inclined branch of the three-pronged stirring rod 32, and are guided through the oil fume guide pipe 39 to the oil fume adsorption box 37 fixed by the fixing sleeve 8. After being purified by the oil fume adsorption filter 38, they are discharged. The partition plate 34 divides the inner cavity of the three-pronged stirring rod 32 into the smoke chamber 35 and the seasoning chamber 36 to avoid mutual interference. The servo motor 31 and the three-pronged stirring rod 32 work together to simulate the high heat of stir-frying to ensure the taste of the ingredients. The pot lid 33 reduces the escape of oil fumes. The smoke chamber 35, the smoke hole 310, the oil fume guide pipe 39, the oil fume adsorption box 37 and the oil fume adsorption filter 38 achieve local purification of oil fumes. The partition plate 34 separates the functional cavities, and the fixing sleeve 8 ensures that the oil fume adsorption box 37 is installed stably.
[0029] In some embodiments, the oil fume adsorption filter 38 is composed of multiple layers of filter mesh, and from the inside out, it consists of a metal filter mesh, a non-woven fabric and an activated carbon filter sheet.
[0030] In this embodiment, during operation, cooking fumes enter the fume adsorption box 37 through the smoke inlet 310, smoke chamber 35, and oil fume duct 39. They then pass sequentially through the oil fume adsorption filter 38, consisting of a metal filter, a non-woven fabric filter, and an activated carbon filter from the inside out. The metal filter intercepts larger particulate impurities in the fumes, the non-woven fabric adsorbs grease, and the activated carbon filter removes harmful gases. This three-layer composite structure enhances the fume purification effect, preventing fumes from polluting the environment and harming human health. Furthermore, the integrated design eliminates the need for an additional range hood, improving space utilization.
[0031] In some embodiments, the two ends of the oil fume duct 39 are fixedly connected and communicate with the oil fume adsorption box 37 and the three-pronged stirring rod 32, respectively, and a purified gas exhaust pipe for discharging purified gas is also fixedly installed on the oil fume adsorption box 37.
[0032] In this embodiment, during operation, cooking fumes enter the fume chamber 35 of the three-pronged stirring rod 32 and are guided into the fume adsorption box 37 through the fume guide pipe 39, which is fixedly connected to the three-pronged stirring rod 32 and the fume adsorption box 37 at both ends. The gas purified by the fume adsorption filter 38 is discharged through the purified gas discharge pipe on the fume adsorption box 37. The fume guide pipe 39 realizes the stable delivery of fumes, ensures the continuous process of fume adsorption and purification, and the purified gas discharge pipe discharges clean gas in a timely manner.
[0033] Please see Figures 1-4 A covered seasoning container 311 is fixedly installed on the outside of the vertical branch of the three-pronged stirring rod 32 through a fixing sleeve 8. A guide pipe 312 communicating with the inner cavity of the seasoning chamber 36 is fixedly installed at the bottom of the covered seasoning container 311. A syringe-type metering pump 313 for metering seasoning is fixedly installed on the guide pipe 312. An outlet 314 is provided on the outside of the seasoning chamber 36 on another inclined branch of the three-pronged stirring rod 32. A baffle plate 315 located obliquely above the outlet 314 and inclined is fixedly installed in the inner cavity of the seasoning chamber 36.
[0034] During operation, the lidded seasoning container 311 stores liquid seasonings. When the preset time is reached, the syringe-type metering pump 313 accurately extracts the seasonings through the guide pipe 312 and delivers them to the seasoning chamber 36 of the three-pronged stirring rod 32. Under the guidance of the baffle plate 315, the seasonings are evenly injected into the wok 6 from the outlet 314 and fully mixed with the stir-fried ingredients. The lidded seasoning container 311 stores the seasonings in a sealed manner, the guide pipe 312 ensures that the seasoning delivery channel is unobstructed, and the syringe-type metering pump 313 achieves precise seasoning delivery.
[0035] Please see Figures 1-3 The actuator of the robotic arm 2 is fixedly equipped with an electric telescopic rod 4, and the telescopic end of the electric telescopic rod 4 is fixedly connected to the servo motor 31.
[0036] The robotic arm 2 receives instructions from an external controller, which drives the electric telescopic rod 4 fixed at its execution end and the servo motor 31 connected to the telescopic end to move directly above the wok 6. The electric telescopic rod 4 adjusts its height by telescopically extending and retracting, so that the lid 33 associated with the servo motor 31 can precisely close to or separate from the wok 6. Its function is to enable the robotic arm 2 to flexibly transfer the position of the stirring structure 3, and the electric telescopic rod 4 to ensure the sealed fit between the lid 33 and the wok 6, providing a stable foundation for subsequent stir-frying, oil fume absorption and quantitative seasoning, and ensuring the coordinated operation of all functional components.
[0037] Please see Figure 1 A stove rack 5 for supporting a wok 6 is movably installed on the burner cap of the gas stove 1. The wok 6 is movably placed on the stove rack 5, and the wok 6 is sealed and adapted to the lid 33.
[0038] The stove rack 5 is movably installed on the burner cap of the gas stove 1. The wok 6 is placed on the stove rack 5 and is stably supported. During cooking, the lid 33 is sealed and adapted to the wok 6 with the cooperation of the robotic arm 2 and the electric telescopic rod 4. Its function is to provide stable support for the wok 6 to ensure even heating of the gas. The wok 6, as the carrier for cooking food, effectively prevents the escape of oil fumes by sealing and adapting with the lid 33, creating a closed environment for the oil fume adsorption and purification system, while ensuring the smooth progress of stir-frying and seasoning.
[0039] Please see Figure 1 A seasoning storage area is provided on one side of the top of the gas stove 1, and several seasoning storage containers 7 for storing spare seasonings are movably placed on the seasoning storage area.
[0040] During operation, the seasoning storage area on one side of the top of the gas stove 1 provides space for the seasoning storage tank 7. Various spare liquid seasonings are pre-stored in the seasoning storage tank 7. When the seasonings in the covered seasoning container 311 are exhausted, they can be taken from the seasoning storage tank 7 and replenished to the covered seasoning container 311. Its function is to centrally store spare seasonings, ensuring that the supply of seasonings is uninterrupted during cooking, eliminating the need for frequent external purchases or temporary preparation of seasonings. Combined with the automatic quantitative seasoning function of the equipment, it further reduces the complexity of operation.
[0041] In practical use, the working principle of this invention is as follows:
[0042] In use, the required seasonings are first prepared into a liquid state and placed into a lidded seasoning container 311. The external controller is pre-connected to the robotic arm 2, servo motor 31, syringe-type metering pump 313, and electric telescopic rod 4 to ensure that each component operates precisely and collaboratively according to the preset program. Next, the wok 6 is placed stably on the stove rack 5 of the gas stove 1. After the ingredients to be cooked are placed in, the external controller sends a command to the robotic arm 2 to move the stirring structure 3 to directly above the wok 6. Then, the electric telescopic rod 4 is controlled to extend and retract, so that the lid 33 is precisely closed on the wok 6. (To prevent the lid 33 from rotating synchronously with the three-pronged stirring rod 32 during the cooking process, a plug can be provided at the bottom of the lid 33, and a corresponding slot is provided at the top of the wok 6. When the lid is closed, the plug fits into the slot to complete the limiting and fixing.) (The design of fixing the outer ring of the bearing to the lid 33 and the inner ring to the three-pronged stirring rod 32 does not affect the rotation and stirring of the three-pronged stirring rod 32.) Then, turn on the ignition switch of the gas stove 1, ignite the flame at the burner to heat and stir-fry the food in the wok 6 at high temperature, and simultaneously start the servo motor 31 (the speed can be adjusted by selecting a reducer according to the characteristics of the food and cooking needs). The servo motor 31 drives the three-pronged stirring rod 32 to rotate at a uniform speed. The stirring of the three-pronged stirring rod 32 simulates the action of stir-frying over high heat, ensuring that the food is heated evenly and avoiding local scorching.
[0043] During the cooking process, oil fumes are generated. Because the lid 33 and the wok 6 are sealed tightly, the oil fumes cannot escape to the surroundings. Furthermore, the smoke extraction hole 310 is located on the inclined branch of the three-pronged stirring rod 32. Under the pressure difference between the inside and outside, the oil fumes will quickly enter the smoke chamber 35 through the smoke extraction hole 310, and then be guided into the oil fume adsorption box 37 integrated on the stirring structure 3 through the oil fume guide pipe 39. The oil fume adsorption filter 38 is composed of a metal filter, non-woven fabric and activated carbon filter from the inside to the outside. It can intercept large particulate impurities in the oil fumes, adsorb grease and harmful gases in sequence. The purified gas is directly discharged through the purified gas exhaust pipe. This not only solves the problems of high oil fume escape rate, pollution of the kitchen environment and harm to human health of traditional cooking machines, but also, because the oil fume treatment module is integrated with the stirring and seasoning structure, there is no need to install an additional independent range hood, which greatly improves the space utilization rate and is suitable for small family kitchens and compact commercial kitchen scenarios.
[0044] When the cooking time reaches the preset time (set in advance according to the type of ingredients and cooking process requirements), the external controller sends a command to the syringe-type metering pump 313 to quantitatively extract the liquid seasoning from the covered seasoning container 311 (the seasoning must be mixed into a liquid form; powder cannot be transported). The liquid seasoning is then precisely transported to the seasoning chamber 36 through the guide tube 312. Under the guidance of the baffle plate 315, the seasoning is evenly injected into the wok 6 from the outlet 314, where it is fully mixed with the ingredients being stir-fried, achieving automatic quantitative seasoning and ensuring the standardization and stability of the cooking flavor.
[0045] Throughout the entire process, the four core functions of gas heating, stirring and frying, oil fume purification, and quantitative seasoning operate simultaneously and in coordination. This not only retains the advantages of gas heat source, such as rapid instantaneous heating and strong firepower, to meet the taste requirements of Chinese cooking, but also completely solves the functional coordination defects of existing gas cooking machines through integrated intelligent design, achieving an efficient, clean, and standardized cooking experience.
[0046] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.
Claims
1. An intelligent gas wok, comprising a gas stove (1) and a mechanical arm (2) fixedly installed on the back of the gas stove (1), characterized in that: A stirring structure (3) is arranged directly below the execution end of the mechanical arm (2); The stirring structure (3) comprises a servo motor (31), a three-prong stirring rod (32) is fixedly installed at the output end of the servo motor (31), a pot cover (33) is fixedly installed on the three-prong stirring rod (32) through a bearing, a partition plate (34) adapted to the three-prong stirring rod (32) is sealingly and fixedly installed in the vertical branch pipe inner cavity of the three-prong stirring rod (32), the partition plate (34) divides the inner cavity of the three-prong stirring rod (32) into a smoke cavity (35) and a seasoning cavity (36), an oil fume adsorption box (37) is fixedly installed on the outer side of the vertical branch pipe of the three-prong stirring rod (32) through a fixing sleeve (8), the fixing sleeve (8) is fixedly connected with the three-prong stirring rod (32), an oil fume adsorption filter screen (38) is fixedly installed in the inner cavity of the oil fume adsorption box (37), the oil fume adsorption box (37) is in communication with the inner cavity of the smoke cavity (35) through an oil fume guide pipe (39), and a plurality of smoke suction holes (310) are arranged on the inclined branch pipe of the three-prong stirring rod (32) and are uniformly distributed on the outer side of the smoke cavity (35).
2. The intelligent gas frying machine according to claim 1, characterized in that: The oil fume adsorption filter screen (38) is composed of multiple layers of filter screens, and from inside to outside, it comprises a metal filter screen, a non-woven fabric and an activated carbon filter sheet.
3. The intelligent gas frying machine according to claim 1, characterized in that: Both ends of the oil fume guide pipe (39) are fixedly connected with and in communication with the oil fume adsorption box (37) and the three-prong stirring rod (32), and a purified gas discharge pipe for discharging the purified gas is further fixedly installed on the oil fume adsorption box (37).
4. The intelligent gas cooking machine according to claim 1, characterized in that: A cover-equipped seasoning holding tank (311) is further fixedly installed on the outer side of the vertical branch pipe of the three-prong stirring rod (32) through the fixing sleeve (8), a material guide pipe (312) in communication with the inner cavity of the seasoning cavity (36) is fixedly installed at the bottom of the cover-equipped seasoning holding tank (311), an injector type quantitative pump (313) for quantitatively conveying seasoning is fixedly installed on the material guide pipe (312), a material discharge port (314) is arranged on another inclined branch pipe of the three-prong stirring rod (32) and is located on the outer side of the seasoning cavity (36), and a material blocking plate (315) is fixedly installed in the inner cavity of the seasoning cavity (36) and is obliquely arranged above the material discharge port (314).
5. The intelligent gas cooking machine according to claim 1, characterized in that: An electric telescopic rod (4) is fixedly installed at the execution end of the mechanical arm (2), and the telescopic end of the electric telescopic rod (4) is fixedly connected with the servo motor (31).
6. The intelligent gas cooking machine according to claim 1, characterized in that: A stove rack (5) for supporting the frying pan (6) is movably installed on the fire cover of the gas stove (1), the frying pan (6) is movably placed on the stove rack (5), and the frying pan (6) is sealingly and adaptively connected with the pot cover (33).
7. The intelligent gas cooking machine according to claim 1, characterized in that: A seasoning storage area is arranged on one side of the top of the gas stove (1), and a plurality of seasoning storage tanks (7) for storing standby seasoning are movably placed on the seasoning storage area.