Automatic material frying device

Abstract

The utility model relates to the technical field of food processing, and particularly discloses an automatic material frying device which comprises a pot body, a pot cover, a stirrer and a heater, the pot cover covers the pot body, the heater is used for heating the pot body, the stirrer is used for being inserted into the pot body for stir-frying, and a plurality of oil nozzles are fixed on the pot cover and are uniformly distributed in the circumferential direction of the stirrer. The pot cover is in a dome shape, the oil nozzles are installed on the top section of the pot cover, a feeding port is further formed in the arc-shaped side face of the pot cover, and a door body for opening or closing the feeding port is further installed on the pot cover. According to the scheme, the problem that an existing frying device cannot achieve automatic oil adding is solved.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, specifically to an automatic stir-frying device. Background Technology

[0002] In the food processing industry, traditional stir-frying has long relied on manual labor. Initially, the entire stir-frying process, from adding ingredients to stirring, was done manually. Workers, with their rich experience and skillful techniques, manually added various ingredients to the wok in sequence and constantly stirred them with a spatula to ensure even heating and thorough seasoning, thus producing high-quality food. However, this purely manual operation method was not only labor-intensive but also inefficient, making it difficult to meet the needs of large-scale food processing.

[0003] With the continuous advancement of technology, electric mixers are increasingly being applied to the stir-frying process in food processing. Electric mixers can mimic manual stir-frying movements, achieving rapid and efficient mixing through mechanical devices, greatly reducing the labor intensity of workers and improving stir-frying efficiency. This technological innovation has, to some extent, promoted the development of the food processing industry, making batch food processing easier. Examples include a rapid mixing device for flavorings and fragrances with easy material collection (patent publication number CN213854074U), a raw material mixing and melting device for butter and shortening production (patent publication number CN208809987U), and a high-temperature aroma extraction device and its application in the preparation of natural flavoring oils (patent publication number CN118454568B), etc.

[0004] While electric stir-fryers have solved the automation problem of stir-frying, the crucial step of adding oil still largely relies on manual methods. Manual oiling has several drawbacks. Due to the difficulty in precisely controlling the force and angle of pouring oil, it's hard to ensure that the entire inner wall of the pan is evenly coated with oil. This can cause some ingredients to stick to the pan due to insufficient oil lubrication, affecting their texture and appearance, and potentially even causing them to burn, thus reducing food quality. Furthermore, uneven oil distribution can lead to uneven heat transfer, making it difficult to accurately control processing time and further impacting the processing results. These disadvantages limit the standardization and efficiency of food processing and pose challenges to the further development of the food processing industry. Utility Model Content

[0005] The present invention aims to provide an automatic stir-frying device to solve the problem that current stir-frying devices cannot achieve automatic refueling.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic stir-frying device includes a pot body, a pot lid, a stirrer, and a heater. The pot lid covers the pot body, the heater is used to heat the pot body, the stirrer is used to insert into the pot body for stir-frying, and multiple oil spray nozzles are fixed on the pot lid. The multiple oil spray nozzles are evenly distributed around the stirrer, and all oil spray nozzles are connected to an oil pump.

[0008] The principle and advantages of this solution are as follows: When using this solution, the raw materials in the stir-frying device are automatically stir-fried by the stirrer, and the oil is sprayed evenly into the pot through multiple nozzles by controlling the oil pump, so that the oil is added evenly and the problem of sticking or burning caused by uneven oiling can be avoided.

[0009] Preferably, as an improvement, the pot lid is dome-shaped, and the oil spray nozzle is installed on the top section of the pot lid, so that the oil spray nozzle is installed at a higher position, thereby making the coverage area after oil spraying larger and the oil spraying can cover the raw materials more evenly.

[0010] Preferably, as an improvement, the curved side of the pot lid is also provided with a feeding port, and the pot lid is also equipped with a door to open or close the feeding port, so as to facilitate adding ingredients into the pot through the feeding port.

[0011] Preferably, as an improvement, the pot lid is also connected to a smoke exhaust pipe, which is a flexible hose or a telescopic pipe with an adjustable bending path. The smoke exhaust pipe is connected to a fume extraction device, and a smoke sensor is installed inside the smoke exhaust pipe. Both the smoke sensor and the fume extraction device are connected to a controller, which is used to activate the fume extraction device after the smoke concentration detected by the smoke sensor reaches a set value. This solution ensures that the fume extraction device only needs to be activated after the smoke concentration reaches the set concentration, avoiding unnecessary energy consumption and contributing to energy conservation and environmental protection.

[0012] Preferably, as an improvement, the door is a sliding door that is slidably connected to the surface of the pot lid, so that ingredients can be added simply by pushing open the sliding door, making the operation simple and convenient.

[0013] Preferably, as an improvement, the sliding door is transparent, and the lid is made of a high-temperature resistant metal material to facilitate observation of the material inside the pot, while ensuring that the lid has sufficient strength.

[0014] Preferably, as an improvement, a temperature sensor is installed inside the pot, and the real-time temperature sensed by the temperature sensor is displayed on a screen to facilitate staff to understand the temperature inside the pot in a timely, quick and accurate manner.

[0015] Preferably, as an improvement, the pot body has a jacket containing heat transfer oil. The jacket is connected to an oil inlet and an oil outlet. The oil inlet is used to inject heat transfer oil, and the oil outlet is used to discharge heat transfer oil. A circulation pump is connected between the oil inlet and the oil outlet. The oil outlet is connected to the feed end of the circulation pump through a pipe. A cooler is installed on the pipe between the oil outlet and the feed end.

[0016] Beneficial Effects: When using this solution, the heat transfer oil itself conducts heat, ensuring a consistent temperature on the inner wall of the pot during heating, thus guaranteeing uniform heating of the materials inside. When the temperature needs to be lowered to the set temperature after heating, the circulation pump is activated, allowing the hot heat transfer oil to enter the cooler for cooling. The cooled oil is then pumped back into the jacket through the inlet, continuously circulating and exchanging heat. This facilitates rapid cooling of the pot without transferring the materials. Compared to existing technologies, this solution does not rely on natural cooling, thus significantly increasing the cooling rate. Because the jacket serves both as a heat transfer and cooling layer, there is no need to transfer the materials inside the pot, saving labor costs associated with material transfer while maintaining a high cooling rate.

[0017] Preferably, as an improvement, the cooler includes a cooling box containing a cooling liquid, and a pipe connecting the oil outlet and the feed end of the circulating pump passes through the cooling liquid, so as to achieve cooling through a simple cooling structure.

[0018] Preferably, as an improvement, the stirrer includes a drive motor, a stirring shaft, and stirring blades fixed on the stirring shaft. The drive motor is fixedly installed on the top of the pot lid, the stirring shaft extends into the pot body, and the bottom of the stirring shaft is rotatably connected to the bottom of the pot body, so that the stirrer can be supported by the pot lid. At the same time, the stirrer is also installed in relation to the pot body, thereby ensuring the stability of the stirring shaft rotation after the stirrer is started.

[0019] Preferably, as an improvement, the stirring shaft is an adjustable length stirring shaft, and a guide column is fixed at the bottom of the pot body. One of the stirring shaft and the guide column has a protrusion and the other has a groove. After the protrusion is inserted into the groove, there can be a gap between the top of the protrusion and the bottom of the groove to ensure that the stirring shaft is still rotatably connected to the guide column after the length of the stirring shaft is adjusted.

[0020] Preferably, as an improvement, the stirring blades include upper inclined plates and lower arc-shaped blades located at different axial heights. There are at least two upper inclined plates and at least two lower arc-shaped blades. The lower arc-shaped blades are inclined relative to the arc-shaped bottom surface of the inner wall of the pot, and the distance between the lower arc-shaped blades and the arc-shaped bottom surface of the pot varies at different radial positions of the stirring shaft. This design, through the upper inclined plates and lower arc-shaped blades, enables faster and more even stirring, while the lower arc-shaped blades make stirring less strenuous and allow for greater and more thorough contact with the raw materials during stirring, thus contributing to improved stirring efficiency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the automatic stir-frying device according to Embodiment 1 of this utility model, without showing the circulation pump and the cooler (one of the sliding doors in the figure is open to expose the feeding port).

[0022] Figure 2 for Figure 1 A three-dimensional structural diagram of the sliding door after it closes the feeding port.

[0023] Figure 3 for Figure 2 Front view diagram with circulation pump and cooler (with partial section).

[0024] Figure 4 This first embodiment of the present invention is a connection diagram illustrating the relationship between the fuel injector, fuel pump, valve and flow meter.

[0025] Figure 5 This is a three-dimensional structural diagram of the stirrer in Embodiment 1 of this utility model.

[0026] Figure 6 for Figure 5 The diagram shows the three-dimensional structure of the drive motor and the first section of the stirring shaft without displaying the image.

[0027] Figure 7 for Figure 5 The first and second segments are changed to three-dimensional structural diagrams using regular hexagonal fits.

[0028] Figure 8 for Figure 5 A partial axial section diagram.

[0029] Figure 9 This is a partial three-dimensional structural diagram of the first and second sections of the stirring shaft of Embodiment 1 of this utility model, showing how their lengths can be adjusted by a threaded connection.

[0030] Figure 10 for Figure 9 A schematic diagram of the axial section.

[0031] Figure 11This is a cross-sectional view of the first embodiment of the present invention, showing the bottom of the first section guided by guide posts installed at the bottom of the container (wherein...). Figure 1 , Figure 10 The guide posts are also marked in the text.

[0032] Figure 12 This is a front view schematic diagram (with partial section) of Embodiment 2 of this utility model.

[0033] Figure 13 This is a three-dimensional schematic diagram of Embodiment 2 of the present invention, excluding the circulating pump and the cooler. Detailed Implementation

[0034] The following detailed description illustrates the specific implementation method:

[0035] The reference numerals in the accompanying drawings include: pot body 10, jacket 101, oil inlet 102, oil outlet 103, temperature sensor 104, plug 105, guide column 106, pot lid 20, feed port 201, sliding door 202, oil injector 203, oil pump 2031, valve 2032, flow meter 2033, exhaust pipe 204, stirrer 30, stirring shaft 1, first section 11, second section 12, contact surface 121, groove 122, locking element 13, stirring blade 2, drive motor 3, upper inclined plate 21, lower arc blade 22, combustion heater 40, circulation pump 50, cooler 60, cooling box 61, spiral pipe 62, guide body 70, combustion chamber 701.

[0036] Example 1 is basically as shown in the appendix. Figures 1 to 11 As shown.

[0037] Combination Figures 1 to 3 An automatic stir-frying device includes a pot body 10, a pot lid 20, a stirrer 30, and a combustion heater 40. The pot body 10 has a circular cross-section and is fixedly supported by a bracket (not shown in the figure). The pot body 10 has a jacket 101, which is a cavity used to contain heat transfer oil. The top of the cavity is connected to an oil inlet 102 and an oil outlet 103, which are located on opposite sides of the pot body 10. The oil inlet 102 is used to inject heat transfer oil, and the oil outlet 103 is used to discharge heat transfer oil. A circulation pump 50 is connected between the oil inlet 102 and the oil outlet 103. The oil outlet 103 is connected to the feed end of the circulation pump 50 through a pipe. A cooler 60 is installed on the pipe between the oil outlet 103 and the feed end.

[0038] Specifically, the cooler 60 includes a cooling box 61 containing cooling liquid. A spiral pipe 62 is installed inside the cooling box 61. One end of the spiral pipe 62 is connected to the oil drain port 103, and the other end is connected to the feed end of the circulation pump 50. This allows the heat-conducting oil to conduct heat during the stirring of the raw materials inside the pot 10 while it is heated, ensuring a uniform temperature on the inner wall of the pot 10. When the stirring is complete and the material inside the pot 10 needs to be cooled, the circulation pump 50 is activated, causing the heat-conducting oil to continuously circulate and flow through the spiral pipe 62 containing the cooling liquid. The spiral pipe 62 significantly extends the time the heat-conducting oil spends within the cooling liquid, thereby continuously removing heat from the raw materials and achieving rapid cooling of the raw materials inside the pot 10.

[0039] In actual use, when the pot body 10 is heated, the heat transfer oil in the jacket 101 will be vaporized. In order to avoid excessive pressure in the jacket, a U-shaped bend (i.e., the heat transfer oil pipeline in the disclosed technology) as shown in patent publication number CN102949086B can be connected to the oil inlet 102 or the oil outlet 103. The top of the U-shaped bend is higher than the jacket 101, and a blower is connected to the other end of the U-shaped bend. The blower is used to send the vaporized heat transfer oil into the combustion heater 40 for combustion.

[0040] A temperature sensor 104 is installed inside the pot body 10 to detect the temperature of the raw materials inside the pot. Both the temperature sensor 104 and the circulation pump 50 are connected to a controller. The controller starts the circulation pump 50 upon receiving a cooling command and stops the circulation pump 50 once the temperature sensor 104 detects that the set temperature has been reached. An alarm connected to the controller is also included, which sounds an alarm when the temperature inside the pot body 10 reaches the set temperature after cooling, thereby improving the level of automation.

[0041] The bottom of the pot body 10 is provided with a discharge port for discharging materials inside the pot body 10. In this embodiment, during the stirring process, other parts such as a plug 105, a baffle, or a discharge valve are installed on the discharge port to seal it, preventing the raw materials from being discharged directly. After stirring is completed, the discharge port is opened to facilitate the timely, quick, and simple discharge of the stirred raw materials. This embodiment uses the plug 105 as an example.

[0042] The lid 20 is detachably connected to the pot body 10. The top of the pot body 10 is open, and the lid 20 has a dome-shaped structure. The lid 20 covers the top opening of the pot body 10. The lid 20 has a feeding port 201, which is a large opening on the side of the curved lid 20. A curved sliding door 202 is installed on the large opening. The sliding door 202 is slidably connected to the lid 20. When the sliding door 202 slides, it rotates around the center of the lid 20. Specifically, the surface of the pot lid 20 is provided with an annular groove, and at least two sliding posts are installed on the sliding door. These posts are slidably connected within the annular groove. The sliding posts are cylindrical and inserted into the annular groove, allowing the sliding door 202 to move along the groove to cover the feeding port 201 and adjust its opening size, thus facilitating the addition of materials. The combination of the sliding door 202 and the curved shape of the pot lid 20 allows for a larger feeding port 201, facilitating the addition of materials into the pot body 10 and enabling the port to be closed after material addition, thus contributing to the increase in temperature within the pot body 10. The sliding door 202 can be transparent, allowing for easy observation of the cooking process. The main body of the pot lid 20 is made of a high-temperature resistant metal material, such as stainless steel, to ensure sufficient strength.

[0043] The dome-shaped area of ​​the pot lid 20 is also equipped with multiple oil spray nozzles 203. The multiple oil spray nozzles 203 are evenly distributed around the stirrer 30. Each oil spray nozzle 203 sprays oil into the pot body 10 so that the oil can be more evenly distributed in the ingredients when stir-frying.

[0044] Combination Figure 4 All fuel injectors 203 are supplied with fuel by the same fuel pump 2031 to ensure consistent fuel quality while reducing the cost of the fuel pump 2031. A valve 2032 is installed on the fuel outlet line connecting the fuel pump 2031 and the fuel injector 203 to facilitate timely opening or cutting off of the fuel supply to the fuel injector. A flow meter 2033 is also installed on the fuel outlet line connecting the fuel pump 2031 and the fuel injector 203 to facilitate measurement of the amount of fuel injected. After the fuel pump 2031 and the flow meter 2033 are connected to the controller, the fuel injection can be controlled by the controller.

[0045] In addition, a smoke exhaust pipe 204 is connected to the pot lid 20 in this embodiment. The smoke exhaust pipe 204 is used to connect to a fume extraction device so that if there is oil smoke during the stirring process, it can be discharged quickly and promptly through the smoke exhaust pipe 204.

[0046] Combination Figure 1 , Figures 5 to 11The agitator 30 includes a drive motor 3, a stirring shaft 1, and stirring blades 2. The drive motor 3 is used to drive the stirring shaft 1 to rotate. The drive motor 3 is fixed on the top of the pot cover 20. The stirring blades 2 are fixed on the stirring shaft 1. The stirring blades 2 penetrate into the pot body 10 to stir the material, so that the material in the pot body 10 is stirred evenly. At the same time, it also helps to increase the cooling rate by stirring during the cooling process.

[0047] The length of the stirring shaft 1 can be adjusted.

[0048] Specifically, the stirring shaft 1 includes a first section 11 and a second section 12. The first section 11 is fixedly connected to the output end of the drive motor 3. The drive motor 3 is fixedly installed on the stirring device and is used to drive the stirring shaft 1 to rotate.

[0049] The stirring blade 2 is fixed on the second section 12 away from the drive motor 3. The first section 11 is sleeved with the second section 12, and the second section 12 can move axially relative to the first section 11. It also includes a locking member 13 for locking the relative position of the first section 11 and the second section 12.

[0050] Combination Figures 5 to 8 In one embodiment, the adjustable length of the stirring shaft 1 is specifically achieved as follows: the first section 11 facing the second section 12 is machined into a sleeve, the top of the second section 12 is machined into a shaft section, the shaft section is sleeved with the sleeve, and a locking member 13, which is a locking pin, is threaded onto the sleeve. The locking pin is inserted into the sleeve and abuts against the shaft section of the second section 12. To improve the locking force of the locking pin on the shaft section, at least one abutment surface 121 is provided on the shaft section. The shaft section can be... Figure 6 The cylindrical shaft shown has an axial abutment groove, which can also be... Figure 7 The shaft segment is a polygonal structure (a regular hexagonal structure in the figure), and the sleeve and the polygonal cross section of the shaft segment are fitted together. When adjusting the length of the stirring shaft 1, the locking pin is turned to release the locking pin from the second segment 12. Then, the second segment 12 is controlled to slide axially relative to the first segment 11, thereby adjusting the overall length of the stirring shaft 1. After the length adjustment is completed, the locking pin is turned again to make the locking pin press against the inner wall of the sleeve of the second segment 12 and the first segment 11, thereby ensuring that the length of the stirring shaft 1 will not change easily.

[0051] Combination Figure 9 and Figure 10In another embodiment, the length of the stirring shaft 1 is adjustable as follows: the first section 11 and the second section 12 are connected by threads. The sleeve of the first section 11 is provided with internal threads, and the shaft section of the second section 12 is provided with external threads. The locking member 13 is a locking nut, which is threaded onto the external threads. After the relative positions of the first section 11 and the second section 12 are adjusted, the length of the first section 11 and the second section 12 is locked by using the locking nut to press against the bottom end face of the first section 11. When adjusting the length, the locking nut is first turned away from the first section 11, and then the second section 12 is turned so that the axial position of the second section 12 relative to the first section 11 changes. After the adjustment is completed, the locking nut is turned again to press against the bottom end face of the first section 11, thereby completing the locking of the length of the stirring shaft 1. In this embodiment, the height position of the stirring blade 2 relative to the pot body 10 is adjusted by adjusting the length of the stirring shaft 1. After the height is adjusted, the distance between the stirring blade 2 and the inner wall of the pot body 10 is adjusted, thereby adapting to different stir-frying needs.

[0052] The stirring blade 2 includes an upper inclined plate 21 and a lower arc-shaped blade 22 located at different heights. The distance between the upper inclined plate 21 and the inner wall of the pot body 10 is greater than the distance between the lower arc-shaped blade 22 and the inner wall of the pot body 10. In a specific embodiment, the distance between the lower arc-shaped blade 22 and the inner wall of the pot body 10 can be set to be no less than 1 mm. The distance between the upper inclined plate 21 and the inner wall of the pot body 10 is no less than 5 mm.

[0053] There are multiple lower arc-shaped blades 22, which are evenly distributed around the stirring shaft 1. Each lower arc-shaped blade 22 is arc-shaped, and the arc shape of the lower arc-shaped blades 22 makes the distance between the lower arc-shaped blades 22 and the inner wall of the pot body 10 gradually change, reducing the difficulty of stirring when the lower arc-shaped blades 22 are in motion.

[0054] The upper inclined plate 21 also has multiple pieces, and these multiple pieces are evenly distributed around the stirring shaft 1.

[0055] Combination Figure 1 and Figure 11 In one embodiment, a guide post 106 is fixedly installed at the bottom of the pot body 10. The guide post 106 is coaxial with the stirring shaft 1 and is cylindrical. The cylindrical guide post 106 is equivalent to forming a circular protrusion. A groove 122 is machined at the bottom of the second section 12. The protrusion is inserted into the groove 122. There is a gap between the protrusion and the groove 122 so that even if the length of the stirring shaft 1 is adjusted, the bottom of the stirring shaft 1 is still limited by the guide post 106, ensuring that both ends are limited when the stirring shaft 1 rotates, thus ensuring the rotational stability of the stirring shaft 1.

[0056] In this embodiment, the adjustable length of the stirring shaft 1 is used to adapt to the stirring requirements of different stirring tasks, and the upper inclined plate 21 and the lower arc-shaped blade 22 are used to make the stirring efficiency high and the stirring more uniform.

[0057] The combustion heater 40 is located below the pot body 10 and also includes a guide body 70 to prevent rapid heat loss. The pot body 10 has an arc-shaped structure. The guide body 70 surrounds the pot body 10 from the bottom. A combustion chamber 701 is formed between the guide body 70 and the bottom of the pot body 10. The combustion chamber 701 surrounds the jacket 101. An installation cavity is connected in the middle of the combustion chamber 701. The combustion heater 40 is installed in the installation cavity. The flame and heat generated by the combustion heater 40 are directed toward the combustion chamber 701 so that the heat generated by the combustion heater 40 can quickly heat up the heat transfer oil in the jacket 101.

[0058] Example 2

[0059] Combination Figure 12 and Figure 13 Example 2 is an improvement on Example 1. Specifically, the pot lid 20 is also connected to a smoke exhaust pipe 204. The smoke exhaust pipe 204 is a flexible hose or a telescopic pipe with an adjustable bending path. The smoke exhaust pipe 204 is connected to the fume extraction equipment. A fume sensor is installed inside the smoke exhaust pipe 204. The fume sensor and the fume extraction equipment are both connected to the controller. The controller is used to start the fume extraction equipment after the fume concentration collected by the fume sensor reaches the set value.

[0060] The controller also allows for different levels of fume concentration settings for starting the fume extraction equipment. Different levels of fume concentration correspond to different extraction speeds when the fume extraction equipment starts. The higher the fume concentration in the exhaust pipe 204, the faster the extraction speed. This further improves the intelligent control of fume extraction, taking into account energy conservation and environmental protection, while ensuring that the extraction speed is automatically adjusted in a timely and rapid manner when the fume concentration is high, so that the fume can be discharged quickly and in a timely manner regardless of its size.

[0061] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An automatic stir-frying device, comprising a pot body, a pot lid, a stirrer, and a heater, wherein the pot lid covers the pot body, the heater is used to heat the pot body, and the stirrer is used to insert into the pot body for stir-frying, characterized in that: Multiple oil spray nozzles are fixed on the pot lid. These nozzles are evenly distributed around the stirrer and are all connected to the oil pump.

2. The automatic stir-frying device according to claim 1, characterized in that: The pot lid is dome-shaped, and the oil spray nozzle is installed on the top section of the pot lid.

3. The automatic stir-frying device according to claim 2, characterized in that: The pot lid is also provided with a feeding port on its curved side, and a door is installed on the pot lid to open or close the feeding port.

4. The automatic stir-frying device according to claim 2, characterized in that: The pot lid is also connected to a smoke exhaust pipe, which is a flexible hose or a telescopic pipe with an adjustable bending path. The smoke exhaust pipe is connected to the fume extraction equipment, and a smoke sensor is installed inside the smoke exhaust pipe. The smoke sensor and the fume extraction equipment are both connected to the controller. The controller is used to start the fume extraction equipment when the smoke concentration collected by the smoke sensor reaches the set value.

5. An automatic stir-frying device according to any one of claims 1-4, characterized in that: A temperature sensor is installed inside the pot, and the real-time temperature sensed by the temperature sensor is displayed on a screen.

6. An automatic stir-frying device according to any one of claims 1-4, characterized in that: The pot body has a jacket containing heat transfer oil. The jacket is connected to an oil inlet and an oil outlet. The oil inlet is used to inject heat transfer oil, and the oil outlet is used to discharge heat transfer oil. A circulation pump is connected between the oil inlet and the oil outlet. The oil outlet is connected to the feed end of the circulation pump through a pipe. A cooler is installed on the pipe between the oil outlet and the feed end.

7. An automatic stir-frying device according to claim 6, characterized in that: The cooler includes a cooling box containing cooling liquid, and a pipe connecting the oil outlet and the feed end of the circulating pump passes through the cooling liquid.

8. An automatic stir-frying device according to any one of claims 1-4 and 7, characterized in that: The stirrer includes a drive motor, a stirring shaft, and stirring blades fixed on the stirring shaft. The drive motor is fixedly installed on the top of the pot lid, the stirring shaft extends into the pot body, and the bottom of the stirring shaft is rotatably connected to the bottom of the pot body.

9. An automatic stir-frying device according to claim 8, characterized in that: The stirring shaft is an adjustable length stirring shaft, and a guide column is fixed at the bottom of the pot. One of the stirring shaft and the guide column has a protrusion and the other has a groove. After the protrusion is inserted into the groove, there can be a gap between the top of the protrusion and the bottom of the groove.

10. An automatic stir-frying device according to claim 8, characterized in that: The stirring blades include upper inclined plates and lower arc-shaped blades located at different axial heights. There are at least two upper inclined plates and at least two lower arc-shaped blades. The lower arc-shaped blades are inclined relative to the arc-shaped bottom surface of the inner wall of the pot, and the distance between the lower arc-shaped blades and the arc-shaped bottom surface of the pot is different at different radial positions of the stirring shaft.

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