A stirring device of a cooking machine

By employing a composite motion trajectory and nested structure of 'revolution + reverse rotation' in the cooking machine, the problems of uneven stir-frying and uneven mixing of seasonings are solved, achieving uniform heating of ingredients and uniform distribution of seasonings, thus improving the cooking effect and operational comfort.

CN224483724UActive Publication Date: 2026-07-14NORTHEAST GASOLINEEUM UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTHEAST GASOLINEEUM UNIV
Filing Date
2025-08-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing stir-fry machines have problems with poor stirring uniformity and uneven mixing of seasonings during the stir-frying process, especially when cooking large pieces of food or multiple ingredients together.

Method used

The first drive component realizes the revolution of the outer stirring shovel, and the second drive component realizes the reverse rotation of the inner stirring shovel, forming a composite motion trajectory of 'revolution + reverse rotation'. The stirring drive, seasoning addition and oil fume treatment functions are integrated through the nested structure of hollow cylinder and rotating heterogeneous hollow rod.

Benefits of technology

It ensures that each piece of food is heated evenly and flavorful, avoids food piling up, improves stir-frying efficiency, simplifies equipment size, reduces oil fume diffusion, and improves operating comfort.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224483724U_ABST
    Figure CN224483724U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of stir-fry machine's stirring device, including rack, first motor of adjusting the angle of entire stirring device is installed on rack, the output end of first motor is installed with shell body, shell body, the inside of shell body is rotatably connected with hollow cylinder by bearing, stirring outer shovel is fixedly connected on hollow cylinder, the inside of hollow cylinder is provided with rotatable rotary special hollow rod, the bottom end of rotary special hollow rod is installed with two groups of stirring inner shovel by connecting piece, first drive assembly for driving stirring outer shovel and stirring inner shovel to revolve is arranged on shell body, second drive assembly for driving stirring inner shovel to rotate is also arranged on shell body;In the utility model, first drive assembly realizes stirring outer shovel revolution, second drive assembly realizes stirring inner shovel reverse rotation, form the composite motion track of "revolution+reverse rotation", avoid food material accumulation, ensure that every piece of food material is evenly heated, taste.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of stir-fry machines, specifically, it relates to a stirring device for a stir-fry machine. Background Technology

[0002] With the development of intelligent kitchen equipment, stir-fry machines have become increasingly popular as automated cooking tools. Their core function is to simulate manual stir-frying to ensure even heating and thorough flavor absorption of ingredients. During the stir-frying process, the stir-fry machine requires a continuous stirring mechanism to agitate the ingredients in the pot, ensuring even heating and mixing. The stirring mechanism of a stir-fry machine typically uses a single motor to drive the stirring spatula, which has the following drawbacks.

[0003] 1. Poor stir-frying uniformity: Stirring in only one direction can easily lead to food piling up, local overheating, or insufficient stir-frying, especially for large pieces of food or mixed food.

[0004] 2. Uneven mixing of seasonings: Due to the unidirectional stirring, the seasonings are difficult to blend with the ingredients quickly after being added, affecting the taste of the dish.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies.

[0006] Therefore, in order to solve the above problems, this utility model provides a stirring device for a stir-fry machine. Utility Model Content

[0007] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a stirring device for a cooking machine.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] A stirring device for a stir-fry machine includes a frame. A first motor for adjusting the angle of the entire stirring device is mounted on the frame. A housing is mounted on the output end of the first motor. A hollow cylinder is rotatably connected to the inside of the housing via bearings. An outer stirring spatula is fixedly connected to the hollow cylinder. A rotatable rotating hollow rod is disposed inside the hollow cylinder. Two sets of inner stirring spatulas are mounted on the bottom end of the rotating hollow rod via connectors. A first drive assembly for driving the outer and inner stirring spatulas to revolve around the central axis is disposed on the housing. A second drive assembly for driving the inner stirring spatulas to rotate on their own axis is also disposed on the housing. An exhaust fume extraction assembly for discharging oil fumes generated during the stir-frying process is also disposed on the housing.

[0010] Furthermore, the first drive assembly includes a gear ring fixedly mounted on the outer wall of the hollow cylinder and a second motor fixedly mounted inside the outer casing. The output end of the second motor is equipped with a gear, which meshes with the gear ring.

[0011] Furthermore, the first drive assembly also includes a bottom cover mounted on the bottom end of the hollow cylinder. Four sets of external gears are arranged in a circumferential array at the top edge of the bottom cover. The external gears mesh with the teeth on the inner wall of the hollow cylinder. The rotating heterogeneous hollow rod is rotatably connected to the bottom cover. An internal gear is fixedly installed at the top end of the rotating heterogeneous hollow rod. The internal gear meshes with the external gears.

[0012] Furthermore, two sets of seasoning add-in boxes are installed on the rotating hollow rod.

[0013] Furthermore, the second drive assembly includes a third motor fixedly installed on the top of the outer casing. The output end of the third motor is connected to a drive shaft. The bottom end of the drive shaft is connected to the connecting parts of the two sets of stirring inner shovels. A flexible shaft fixing buckle for fixing and limiting the drive shaft is installed inside the hollow cylinder.

[0014] Furthermore, the fume extraction assembly includes a fume extraction housing fixedly installed on the outer casing, a plurality of fume extraction fans are installed inside the fume extraction housing, and two sets of exhaust branch pipes are connected to the top of the fume extraction housing. The top of the exhaust branch pipes is connected to the exhaust main pipe through a T-joint connector.

[0015] Furthermore, the inner wall of the range hood shell is coated with a heat insulation layer, and the top of the shell is provided with heat dissipation holes.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In this utility model, the first driving component realizes the revolution of the outer stirring shovel and the second driving component realizes the reverse rotation of the inner stirring shovel, forming a composite motion trajectory of "revolution + reverse rotation", which avoids the accumulation of food and ensures that each piece of food is heated evenly and flavored.

[0018] 2. The nested structure of hollow cylinder and rotating irregular hollow rod integrates functions such as stirring drive, seasoning addition, and fume treatment, simplifying the equipment size and improving space utilization. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0022] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0023] Figure 4 This is a partial structural schematic diagram of the present invention;

[0024] Figure 5 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0025] Figure label:

[0026] 1. Frame; 2. First motor; 3. Outer casing; 4. Hollow cylinder; 5. Gear ring; 6. Second motor; 7. Internal gear; 8. Outer stirring shovel; 9. Bottom cover; 10. External gear; 11. Internal gear; 12. Rotating non-circular hollow rod; 13. Inner stirring shovel; 14. Seasoning addition box; 15. Third motor; 16. Transmission flexible shaft; 17. Flexible shaft fixing buckle; 18. Fume extraction casing; 19. Fume fan; 20. Exhaust branch pipe; 21. Main exhaust pipe. Detailed Implementation

[0027] The utility model will now be further described with reference to the accompanying drawings and specific embodiments:

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5According to an embodiment of the present invention, a stirring device for a stir-fry machine includes a frame 1. A first motor 2 for adjusting the angle of the entire stirring device is mounted on the frame 1. A housing 3 is mounted on the output end of the first motor 2. A heat dissipation hole is provided at the top of the housing 3 to facilitate the dissipation of heat from inside the housing 3. A hollow cylinder 4 is rotatably connected to the inside of the housing 3 via a bearing. An outer stirring spatula 8 is fixedly connected to the hollow cylinder 4. A rotatable rotating hollow rod 12 is provided inside the hollow cylinder 4. Two sets of inner stirring spatulas 13 are mounted on the bottom end of the rotating hollow rod 12 via a connector. The housing 3 is provided with a mechanism for driving... The outer stirring spatula 8 and the inner stirring spatula 13 revolve in a first drive assembly. The outer casing 3 is also equipped with a second drive assembly for driving the inner stirring spatula 13 to rotate on its own axis. The outer casing 3 is also equipped with an exhaust fume extraction assembly for discharging the oil fumes generated during cooking. The first drive assembly drives the outer stirring spatula 8 and the inner stirring spatula 13 to revolve, thereby stirring the materials. The second drive assembly drives the inner stirring spatula 13 to rotate on its own axis, thereby further stirring the materials and improving the stirring efficiency. The exhaust fume extraction assembly extracts the oil fumes and then discharges them uniformly, improving the comfort of the operators.

[0029] Please see Figure 2 and Figure 3 The first drive assembly includes a gear ring 5 fixedly installed on the outer wall of the hollow cylinder 4 and a second motor 6 fixedly installed inside the outer casing 3. A gear 7 is installed at the output end of the second motor 6. The gear 7 meshes with the gear ring 5. The second motor 6 drives the gear 7 to rotate, and the gear 7, in conjunction with the gear ring 5, drives the hollow cylinder 4 to rotate, which in turn drives the stirring spatula 8 to rotate. The stirring spatula 8 then stirs and stirs the food. At the same time, the stirring spatula 8 can also clean the raw materials stuck to the inner wall of the wok, improving the stir-frying effect.

[0030] Please see Figure 3 and Figure 4 The first drive assembly also includes a bottom cover 9 mounted on the bottom of the hollow cylinder 4. Four sets of external gears 10 are arranged in a circumferential array at the top edge of the bottom cover 9. The external gears 10 are meshed with the teeth on the inner wall of the hollow cylinder 4. A rotating hollow rod 12 is rotatably connected to the bottom cover 9. An internal gear 11 is fixedly installed at the top of the rotating hollow rod 12. The internal gear 11 is meshed with the external gears 10. As the hollow cylinder 4 rotates, the teeth on its inner wall drive the external gears 10 to rotate. The external gears 10 drive the internal gears 11 to rotate. The internal gears 11 drive the rotating hollow rod 12 to rotate. The rotating hollow rod 12 drives two sets of stirring inner spatulas 13 to rotate, thereby stirring and stir-frying the food through the stirring inner spatulas 13.

[0031] Please see Figure 3Two sets of seasoning boxes 14 are installed on the rotating hollow rod 12. The seasoning boxes 14 can pre-store seasonings. During the cooking process, seasonings can be manually added as needed (when adding seasonings, the hollow cylinder 4 stops rotating).

[0032] Please see Figure 4 and Figure 5 The second drive assembly includes a third motor 15 fixedly installed at the top of the outer casing 3. The output end of the third motor 15 is connected to a transmission flexible shaft 16. The bottom end of the transmission flexible shaft 16 is connected to the connecting parts of the two sets of stirring inner shovels 13. The hollow cylinder 4 is equipped with a flexible shaft fixing buckle 17 for fixing and limiting the transmission flexible shaft 16. The third motor 15 drives the transmission flexible shaft 16 to rotate, and the transmission flexible shaft 16 drives the two sets of stirring inner shovels 13 to rotate, realizing the rotation of the two sets of stirring inner shovels 13. The direction of this rotation is opposite to its revolution direction, forming a composite motion trajectory of "revolution + reverse rotation", which avoids the accumulation of food and ensures that each piece of food is heated evenly and flavored.

[0033] Please see Figure 1 and Figure 2 The fume extraction assembly includes a fume extraction housing 18 fixedly installed on the outer casing 3. A heat insulation layer is coated on the outer wall of the hollow cylinder 4 and the inner wall of the fume extraction housing 18. This heat insulation layer prevents heat transfer to the interior of the outer casing and the hollow cylinder 4, providing protection for the operation of electrical components. Several fume extraction fans 19 are installed inside the fume extraction housing 18. Two sets of exhaust branch pipes 20 are connected to the top of the fume extraction housing 18. The top of each exhaust branch pipe 20 is connected to a main exhaust pipe 21 via a T-joint. The fume extraction fans 19 extract the fumes generated during cooking, and the fume extraction housing 18 collects and then discharges the fumes through the exhaust branch pipes 20 and the main exhaust pipe 21, preventing the spread of fumes and reducing kitchen air pollution.

[0034] The working principle of the stirring device of this utility model patent for a stir-fry machine is as follows: The first motor 2 drives the outer shell 3 to rotate, adjusting the angle between the stirring device and the wok to adapt to the stir-frying needs at different cooking stages (such as controlling the stirring amplitude of ingredients by tilting the angle). It also facilitates the removal of food from the wok and the cleaning of the wok and stirring device. After the food ingredients are placed into the wok, the second motor 6 and the third motor 15 are started. The second motor 6 drives the gear 7 to rotate, and the gear 7, in conjunction with the gear ring 5, drives the hollow cylinder 4 to rotate, which in turn drives the outer stirring spatula 8 to rotate. The outer stirring spatula 8 then stirs and stirs the food. Simultaneously, the outer stirring spatula 8 can also clean the ingredients sticking to the inner wall of the wok, improving the stir-frying effect. At the same time, as the hollow cylinder 4 rotates, the teeth on its inner wall drive the outer gear 1... The outer gear 10 rotates, driving the inner gear 11 to rotate. The inner gear 11 drives the rotating hollow rod 12 to rotate, which in turn drives the two sets of stirring inner spatulas 13 to rotate. The stirring inner spatulas 13 then stir and stir the food. The third motor 15 drives the transmission flexible shaft 16 to rotate, which in turn drives the two sets of stirring inner spatulas 13 to rotate. This achieves the rotation of the two sets of stirring inner spatulas 13, and the direction of this rotation is opposite to their revolution direction, forming a composite motion trajectory of "revolution + reverse rotation". This avoids food accumulation and ensures that each piece of food is heated evenly and flavorful. The fume extractor 19 can extract the fumes generated during the cooking process, and the fume extractor shell 18 can collect the fumes. Then, the fumes are discharged through the exhaust branch pipe 20 and the exhaust main pipe 21 to prevent the fumes from spreading and reduce kitchen air pollution.

[0035] It should be noted that the first motor 2, the second motor 6, the third motor 15 and the fume fan 19 are existing devices or equipment, or devices or equipment that can be implemented with existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stirring device for a stir-fry machine, comprising a frame (1), characterized in that: The frame (1) is equipped with a first motor (2) for adjusting the angle of the entire stirring device. The output end of the first motor (2) is equipped with a housing (3). The interior of the housing (3) is rotatably connected to a hollow cylinder (4) via a bearing. An outer stirring shovel (8) is fixedly connected to the hollow cylinder (4). A rotating, non-rotating hollow rod (12) is provided inside the hollow cylinder (4). Two sets of inner stirring shovels (13) are installed at the bottom end of the rotating, non-rotating hollow rod (12) via a connector. The housing (3) is equipped with a first drive assembly for driving the outer stirring shovel (8) and the inner stirring shovels (13) to revolve. The housing (3) is also equipped with a second drive assembly for driving the inner stirring shovels (13) to rotate. The housing (3) is also equipped with an exhaust fume extraction assembly for discharging the oil fumes generated during the cooking process.

2. The stirring device of a stir-fry machine according to claim 1, characterized in that: The first drive assembly includes a gear ring (5) fixedly mounted on the outer wall of the hollow cylinder (4) and a second motor (6) fixedly mounted inside the outer casing (3). The output end of the second motor (6) is equipped with a gear (7), which meshes with the gear ring (5).

3. The stirring device of a stir-fry machine according to claim 2, characterized in that: The first drive assembly also includes a bottom cover (9) mounted on the bottom end of the hollow cylinder (4). Four sets of external gears (10) are arranged in a circumferential array at the top edge of the bottom cover (9). The external gears (10) mesh with the teeth on the inner wall of the hollow cylinder (4). The rotating heterogeneous hollow rod (12) is rotatably connected to the bottom cover (9). An internal gear (11) is fixedly installed at the top end of the rotating heterogeneous hollow rod (12). The internal gear (11) meshes with the external gears (10).

4. The stirring device of a stir-fry machine according to claim 1, characterized in that: Two sets of seasoning addition boxes (14) are installed on the rotating heterogeneous hollow rod (12).

5. The stirring device of a stir-fry machine according to claim 1, characterized in that: The second drive assembly includes a third motor (15) fixedly installed at the top of the outer shell (3). The output end of the third motor (15) is connected to a transmission flexible shaft (16). The bottom end of the transmission flexible shaft (16) is connected to the connecting parts of the two sets of stirring inner shovels (13). The hollow cylinder (4) is equipped with a flexible shaft fixing buckle (17) for fixing and limiting the transmission flexible shaft (16).

6. The stirring device of a stir-fry machine according to claim 1, characterized in that: The fume extraction assembly includes a fume extraction housing (18) fixedly installed on the outer casing (3). Several fume extraction fans (19) are installed inside the fume extraction housing (18). Two sets of exhaust branch pipes (20) are connected to the top of the fume extraction housing (18). The top of the exhaust branch pipes (20) is connected to the exhaust main pipe (21) through a three-way connector.

7. The stirring device of a stir-fry machine according to claim 6, characterized in that: The outer wall of the hollow cylinder (4) and the inner wall of the fume extraction shell (18) are coated with a heat insulation layer, and the top of the shell (3) is provided with heat dissipation holes.