Oil detection device of a frying oven and detection method thereof

Abstract

The application relates to the technical field of oil liquid detection, in particular to oil liquid detection equipment of a frying furnace and a detection method thereof, which further comprises a detection unit installed in the interior of the frying groove through a moving driving assembly, which is used for moving sampling detection of oil liquid in the interior of the frying groove, and the detection unit is also used for separating particulate matters in the oil liquid while detection; the detection unit comprises a preliminary screening assembly used for screening large particles, so that large particles interfering with detection in the oil liquid are screened out, and the detection unit also comprises a stacking warning assembly used for detecting the amount of particles; the device circulates the oil liquid through the preliminary screening assembly and the stacking warning assembly through the setting of the detection unit, the preliminary screening assembly screens out large particulate matters in the oil liquid, the oil liquid is secondarily filtered and separated through the stacking warning assembly, and a warning light is triggered when the total amount of separated and stacked particulate matters reaches a limited value, so that the user is reminded that the medium particulate matters in the oil liquid exceed the standard.

Description

Technical Field

[0001] This invention relates to the field of oil detection, and more particularly to an oil detection device and method for an fryer. Background Technology

[0002] Deep fryers are commonly used for frying food, and can cook different foods by controlling the frying temperature.

[0003] During the frying process, food residue remains in the oil. As frying continues, the amount of food residue in the oil gradually increases. After the food residue decomposes, it forms suspended particles that are difficult to remove completely, thus interfering with subsequent frying. The recycling of the oil causes the amount of suspended particles in the oil to gradually increase. When the amount of suspended particles in the oil reaches a certain level, the oil can no longer be used. Therefore, in order to ensure the safe use of the oil, it is necessary to test the suspended particles in the oil. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an oil detection device and method for frying ovens.

[0005] In a first aspect, the present invention provides an oil detection device for a deep fryer, comprising a deep fryer body, the deep fryer body including a frying tank for frying, and further comprising: The detection unit is installed inside the frying tank via a moving drive component and is used to move and sample the oil inside the frying tank for detection. The detection unit is also used to separate particulate matter in the oil during the detection process. The detection unit includes a primary screening component for screening large particles to remove large particles in the oil that interfere with detection. The detection unit also includes an accumulation warning component for detecting the amount of particles to reflect the amount of suspended particles in the oil based on the amount of particle accumulation. The detection unit also includes a flow guiding component for driving the oil flow, so as to drive the oil flow through the primary screening component and the accumulation warning component; The control unit is used to control the detection unit to start detecting the oil when it is necessary to detect the oil, and is also used to control the triggering of the warning light when the amount of particulate matter accumulated in the accumulation warning component exceeds the limit value; For reusable oil, the oil is cooled before each use. At this time, the operator activates the moving drive assembly via the control unit. Once activated, the moving drive assembly first lowers the detection unit below the oil surface, allowing the oil to pass through for detection. Then, the control unit activates the detection unit, specifically the flow guide assembly. This flow guide assembly drives the oil flow, circulating the oil inside the frying tank through the primary screening assembly and the accumulation warning assembly. As the oil passes through the primary screening assembly, it removes large particles that are clearly visible to the naked eye. These large particles can be easily removed manually and will not interfere with subsequent frying. The removal of large particles after passing through the primary screening assembly reduces interference with the subsequent accumulation warning assembly and eliminates the need for manual removal of large particles in subsequent uses, thus improving work efficiency. After removing large particles, the oil reaches the accumulation warning component. This component separates medium-sized particles from the oil. The definition of medium-sized particles can be determined based on actual separation needs; for example, it can be defined as particles that can be filtered by a mesh screen. This allows the oil to undergo secondary filtration and separation through the accumulation warning component, further separating medium-sized particles and accumulating them. During a single test, if the total accumulated particles reach a certain limit, it indicates that the medium-sized particles in the oil are greater than or equal to the limit. At this point, the control unit triggers a warning light, alerting staff that the medium-sized particles in the oil exceed the limit. This facilitates the testing of oil particles before use, separating particles during the testing process, and alerting staff when particle levels exceed the limit, thus reminding them to treat or replace the oil. This helps reduce the likelihood of interference or safety hazards caused by excessive particles during oil use.

[0006] Preferred options also include: The oil change detection component is used to detect the amount of fine particles in the oil after passing through the detection unit, so as to trigger a warning light to prompt an oil change when the amount of fine particles in the oil reaches a certain value. The control unit is also used to control the oil change detection component to start when the amount of particulate matter accumulated in the accumulation warning component exceeds the limit value, so as not to interfere with the detection of the detection unit when the particulate matter in the oil does not reach the limit value, and to start detecting the amount of fine particles when the particulate matter in the oil reaches the limit value. When the oil passes through the accumulation warning component, if the amount of medium-sized particles in the component does not exceed the limit, the amount of medium-sized particles in the oil is within acceptable limits, and the oil change detection component is not activated, thus not interfering with the oil detection. When the amount of medium-sized particles in the accumulation warning component exceeds the limit, the control unit activates the oil change detection component. Once activated, the component detects the amount of fine particles in the oil. These fine particles are difficult to remove and accumulate after multiple uses, indicating that the oil has been used repeatedly. These fine particles can be detected through actual separation. It needs to be limited, for example, here it can be limited to particles that cannot be filtered by a 200-mesh sieve but can be filtered by a 1000-mesh sieve. The oil change detection component can detect the amount of fine particles. When the amount of fine particles in the oil reaches the limit, it triggers a warning light to prompt an oil change. Thus, when the oil has been used multiple times and the amount of fine particles that are difficult to clean exceeds the standard, it directly prompts the staff to change the oil without having to treat the oil again. This is beneficial to improving work efficiency and can also reflect the fact that the oil has been used multiple times and needs to be replaced by the amount of fine particles, avoiding the food safety hazards caused by repeated use of oil.

[0007] Preferred options also include: An automatic discharge assembly is used to automatically eject large particles collected in the primary screening assembly when the assembly is full, so as to discharge and clean the large particles collected during screening. The control unit is also used to activate the automatic discharge component when the number of large particles in the primary screening component exceeds a certain limit. When the primary screening component is full of large particles, the control unit activates the automatic discharge component to discharge the collected large particles. This prevents the large particles accumulated in the primary screening component from affecting subsequent screening and helps avoid interference with the test results.

[0008] Secondly, a detection method for an oil level detection device in a deep fryer is provided, the detection method comprising the following steps: The system controls the activation of the oil change detection component based on the information indicating excessive buildup, in order to detect whether the oil needs to be replaced. When the first detection frame is filled with particles, the first pressure sensor is compressed. At this time, the first pressure sensor generates an excessive accumulation information based on the pressure information and sends the excessive accumulation information to the control unit. The control unit generates control information for the oil change detection component based on the excessive accumulation information. Subsequently, the control unit sends the control information for the oil change detection component to the oil change detection component to control the oil change detection component to start. After the oil change detection component starts, it performs fine particle detection on the oil to determine whether the oil needs to be replaced.

[0009] Preferred options also include: The automatic discharge component is activated based on the information that the large particles are full, so as to control the discharge and cleaning when the large particles are full. When the collection box is full, the infrared sensor acquires the information that the large particles are full and sends the information to the control unit. The control unit generates discharge control information based on the information that the large particles are full and sends the discharge control information to the automatic discharge component to control the automatic discharge component to start. After the automatic discharge component starts, it drives the primary screening component to discharge the material, so as to automatically control the discharge when the large particles are full.

[0010] Preferred options also include: The warning light is activated based on the information indicating excessive fine particles, so as to prompt an oil change. When the second detection frame is full of particles, the second pressure sensor is squeezed. At this time, the second pressure sensor generates information about excessive fine particles based on the pressure information and sends the information to the control unit. The control unit generates warning control information based on the information about excessive fine particles and then sends the warning control information to the warning light to activate the warning light. After the warning light is activated, it prompts for an oil change.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, through the setting of the detection unit, allows the oil to circulate through the primary screening component and the accumulation warning component. The primary screening component removes large particles in the oil, reducing interference with the subsequent accumulation warning component. Furthermore, after the primary screening component removes large particles, there is no need to remove them again. The oil is then filtered and separated a second time through the accumulation warning component. If the total amount of separated and accumulated particles reaches a certain limit, the control unit triggers a warning light to remind the operator that the medium-sized particles in the oil exceed the standard. This facilitates the detection of particulate matter in the oil as needed before use.

[0012] 2. This invention, through the setting of the oil change detection component, reminds staff that the fine particulate matter in the oil has reached a certain limit, thus prompting staff to change the oil. This is beneficial when the oil has been used multiple times and the accumulation of hard-to-clean fine particulate matter reaches the limit, prompting staff to change the oil. This reduces the need for staff to re-test the oil and thus improves work efficiency.

[0013] 3. By setting up the interval component, the present invention blocks the oil before and after detection, thereby reducing the mutual flow between the oil on both sides. This helps to reduce the occurrence of oil being filtered out and mixed with the original oil during the detection process, thus increasing the detection time and improving the efficiency of oil detection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the method flow of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall structure of the detection device of the present invention.

[0016] Figure 3 This is a cross-sectional view of the fryer body of the present invention.

[0017] Figure 4 For the present invention Figure 3 A magnified structural diagram of point A.

[0018] Figure 5 This is a cross-sectional view of the detection unit of the present invention. Figure 1 .

[0019] Figure 6 For the present invention Figure 5 A magnified structural diagram at point B in the middle.

[0020] Figure 7 This is a cross-sectional structural diagram of the detection box of the present invention.

[0021] Figure 8 This is a cross-sectional view of the detection unit of the present invention. Figure 2 .

[0022] Figure 9 For the present invention Figure 8 A magnified structural diagram at point C.

[0023] Figure 10 This is a cross-sectional view of the detection unit of the present invention. Figure 3 .

[0024] Figure 11 This is a cross-sectional view of the detection unit of the present invention. Figure 4 .

[0025] Figure 12 For the present invention Figure 11 A magnified structural diagram at point D.

[0026] Figure 13 This is a cross-sectional view of the rotating rod of the present invention.

[0027] In the diagram: 1. Deep fryer body; 101. Frying tank; 2. Sliding frame; 3. Horizontal drive motor; 4. Horizontal drive screw; 5. Detection box; 6. Vertical drive motor; 7. First transmission gear set; 8. Vertical drive screw; 9. Liquid inlet; 10. Guide partition; 11. Lifting frame; 12. Collection frame; 13. Discharge cylinder; 14. Primary filter plate; 15. Inclined guide plate; 16. Secondary filter plate; 17. Drive partition plate; 18. First reciprocating screw; 19. First check valve; 20. Second check valve; 21. First motor; 22. Second transmission gear set; 23. Rotating rod ; 24. First bevel gear; 25. Second reciprocating screw; 26. Second bevel gear; 2701. First scraper plate; 2702. Second scraper plate; 28. First detection frame; 29. ​​Third bevel gear; 30. Third reciprocating screw; 31. Fourth bevel gear; 32. Second detection frame; 33. First bevel gear set; 34. Fourth reciprocating screw; 35. Second bevel gear set; 36. Straight rod; 37. Electric telescopic rod; 38. Second motor; 39. Rotating shaft; 40. Worm gear; 41. Turbine; 42. Stirring blade; 43. Shielding box; 44. Controller; 45. Fixing plate; 46. Shielding plate. Detailed Implementation

[0028] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0029] like Figures 2 to 13 The oil detection device for a deep fryer shown includes a deep fryer body 1, which includes a frying tank 101 for frying, and further includes: The detection unit is installed inside the frying tank 101 via a moving drive assembly. It is used to move and sample the oil inside the frying tank 101 for detection. The detection unit is also used to separate particulate matter in the oil during the detection process. The detection unit includes a primary screening component for screening large particles to remove large particles in the oil that interfere with detection. The detection unit also includes an accumulation warning component for detecting the amount of particles to reflect the amount of suspended particles in the oil based on the amount of particles accumulated. The detection unit also includes a flow guide assembly for driving the oil flow through the primary screening assembly and the accumulation warning assembly; The control unit is used to control the detection unit to start detecting the oil when it is necessary to detect the oil, and to trigger the warning light when the amount of particulate matter accumulated in the accumulation warning component exceeds the limit value; During the frying process, food residue remains in the oil. As frying continues, the amount of food residue in the oil gradually increases. After the food residue decomposes, it forms suspended particles. These suspended particles are difficult to remove completely, thus interfering with subsequent frying. The recycling of the oil causes the amount of suspended particles in the oil to gradually increase. When the amount of suspended particles in the oil reaches a certain level, the oil can no longer be used. Therefore, in order to ensure the safe use of the oil, it is necessary to test the suspended particles in the oil. This embodiment of the invention can solve the above problems. The specific implementation is as follows: For reusable oil, the oil is in a cooled state at the start of each use. At this time, the operator controls the movement drive assembly to start via the control unit. After the movement drive assembly starts, it first lowers the detection unit below the oil surface, allowing the oil to pass through for detection. Then, the control unit controls the detection unit to start, i.e., it activates the flow guide assembly within the detection unit. The flow guide assembly drives the flow of the oil, causing the oil inside the frying tank 101 to circulate through the primary screening assembly and the accumulation warning assembly. When the oil passes through the primary screening assembly, it removes large particles in the oil. These large particles are those clearly visible to the naked eye and can be easily removed manually without interfering with subsequent frying. After the oil passes through the primary screening assembly, the large particles are removed, reducing interference with the subsequent accumulation warning assembly. Furthermore, the removal of large particles by the primary screening assembly eliminates the need for manual removal of large particles in subsequent uses. Particulate matter removal improves work efficiency. After removing large particles, the oil reaches the accumulation warning component, which separates medium-sized particles. This medium-sized particle size can be defined based on actual separation needs; for example, it can be defined as particles that can be filtered through a 200-mesh sieve. This secondary filtration and separation of the oil through the accumulation warning component further separates the medium-sized particles. The separated particles are then accumulated. During a single detection process, if the total accumulated particles reach a certain limit, it indicates that the medium-sized particles in the oil are greater than or equal to the limit. At this point, the control unit triggers a warning light, alerting staff that the medium-sized particles in the oil exceed the limit. This facilitates the detection of particulate matter in the oil before use, separating particles during the detection process, and alerting staff when the particle size exceeds the limit, thus reminding them to treat or replace the oil. This helps reduce the occurrence of interference or safety hazards caused by excessive particulate matter during oil use.

[0030] As an optional embodiment, the control unit includes: The controller 44 is fixed to the side wall of the fryer body 1; As an optional embodiment, it also includes: The oil change detection component is used to detect the amount of fine particles in the oil after it has passed through the detection unit, and to trigger a warning light to indicate an oil change when the amount of fine particles in the oil reaches a certain limit. The control unit is also used to control the oil change detection component to start when the amount of particulate matter in the accumulation warning component exceeds the limit value, so as not to interfere with the detection unit when the particulate matter in the oil does not reach the limit value, and to start detecting the amount of fine particles when the particulate matter in the oil reaches the limit value. When the oil passes through the accumulation warning component, if the amount of medium-sized particles in the component does not exceed the limit, the amount of medium-sized particles in the oil is within acceptable limits, and the oil change detection component is not activated, thus not interfering with the oil detection. When the amount of medium-sized particles in the accumulation warning component exceeds the limit, the control unit activates the oil change detection component. Once activated, the component detects the amount of fine particles in the oil. These fine particles are difficult to remove and accumulate after multiple uses, indicating that the oil has been used repeatedly. These fine particles can be detected through actual separation. It needs to be limited, for example, here it can be limited to particles that cannot be filtered by a 200-mesh sieve but can be filtered by a 1000-mesh sieve. The oil change detection component can detect the amount of fine particles. When the amount of fine particles in the oil reaches the limit, it triggers a warning light to prompt an oil change. Thus, when the oil has been used multiple times and the amount of fine particles that are difficult to clean exceeds the standard, it directly prompts the staff to change the oil without having to treat the oil again. This is beneficial to improving work efficiency and can also reflect the fact that the oil has been used multiple times and needs to be replaced by the amount of fine particles, avoiding the food safety hazards caused by repeated use of oil.

[0031] As an optional embodiment, it also includes: The automatic discharge component is used to automatically eject large particles collected in the primary screening component when it is full, so as to discharge and clean the large particles collected during screening. The control unit is also used to activate the automatic discharge assembly when large particles in the primary screening assembly exceed the limit value; When the primary screening component is full of large particles, the control unit activates the automatic discharge component to discharge the collected large particles. This prevents the large particles accumulated in the primary screening component from affecting subsequent screening and helps avoid interference with the test results.

[0032] As an optional embodiment, the initial screening component includes: Detection box 5, the interior of detection box 5 is provided with an inner cavity; The inlet 9 is located on the side wall of the detection box 5 and is used to supply oil. A solenoid valve is installed inside the inlet 9. The guide baffle 10 is fixed inside the inner cavity and is used to guide the flow of oil. The lifting frame 11 contains a collection frame 12. The oil enters the collection frame 12 under the guidance of the guide partition 10 to complete the screening of large particles. An infrared sensor, installed on the top of the detection box 5, is used to detect the total amount of particulate matter collected inside the collection frame 12. Oil enters the detection chamber 5 through inlet 9. The control unit controls the opening of the solenoid valve, thus controlling the amount of oil entering the detection chamber 5 under the action of the guide assembly. This allows the oil to flow from top to bottom through the primary screening assembly and the accumulation warning assembly, preventing the detection chamber 5 from becoming completely filled with oil, which could cause the separated particles to move and interfere with particle collection. After entering the detection chamber 5, the oil flows to the collection frame 12 through the guide baffle 10. The lifting frame 11 supports the collection frame 12. The bottom of the lowering frame 11 is open, allowing oil to pass through directly. The bottom of the collection frame 12 is a screen, which can perform preliminary filtration of the oil, allowing large particles in the oil to be screened and separated. As a result, large particles are left behind after the oil passes through the collection frame 12. The infrared sensor can monitor the amount collected inside the collection frame 12, which helps to avoid interference from large particles on the accumulation warning component. At the same time, it is beneficial to separate large particles in the oil, which is beneficial for the subsequent use of the oil. There is no need for manual separation of large particles again, which helps to improve work efficiency.

[0033] As an optional embodiment, the stacking warning component includes: The primary filter plate 14 is fixed inside the inner cavity; The first scraper plate 2701 is slidably connected to the inside of the inner cavity and is used to push the particles separated on the primary filter plate 14 to converge. A reciprocating push assembly is used to push the first scraper plate 2701 to reciprocate on the top of the primary filter plate 14; The first detection frame 28 is slidably inserted into the interior of the cavity, and the first scraper plate 2701 pushes the separated particles above the primary filter plate 14 toward the first detection frame 28 for collection. The first pressure sensor is fixed on the side wall of the first detection frame 28. After the particles inside the first detection frame 28 are full, the first scraper plate 2701 pushes the particles to squeeze the first pressure sensor. After passing through the collection frame 12, the oil flows to the top of the primary filter plate 14. The primary filter plate 14 can be selected as needed, for example, a 200-mesh screen can be selected here, allowing the oil to flow downwards through the primary filter plate 14. Medium-sized particles in the oil are separated. The reciprocating push assembly drives the first scraper plate 2701 to reciprocate on the top of the primary filter plate 14. When the first scraper plate 2701 moves towards the first detection frame 28, it pushes the particles separated on the top of the first scraper plate 2701 towards the first detection frame 28, so that the particles are collected inside the first detection frame 28. The particles accumulate inside the first detection frame 28, and the filtration efficiency of the first detection frame 28 and the first scraper plate 2701 is enhanced. If the result is the same, when the particles inside the first detection frame 28 are full, the first scraper plate 2701 pushes the particles again. After the particles continue to accumulate, they squeeze the first pressure sensor, thereby triggering the first pressure sensor. That is, the pressure information received by the first pressure sensor indicates that the medium particles separated by the first scraper plate 2701 have reached the limit value. At this time, the control unit controls the triggering of the warning light to remind the staff that the medium particles in the oil have reached the limit value. The staff can then process or replace the oil. This is beneficial for detecting the amount of suspended particles in the oil and prompting the staff to process or replace the oil, which helps to avoid the situation where the amount of particles in the oil exceeds the standard and affects subsequent use.

[0034] As an optional embodiment, the mobile driving component includes: The sliding frame 2 is horizontally slidably installed inside the frying tank 101 via a slide rail; The transverse drive motor 3 is installed inside the fryer body 1 through the mounting slot. The output shaft end of the transverse drive motor 3 is fixed with a transverse drive screw 4, which is threadedly connected to the sliding frame 2. The testing box 5 is vertically slidably mounted on the side wall of the sliding frame 2; The shielding box 43 is fixed to the top of the detection box 5; The vertical drive motor 6 is fixedly installed inside the shielding box 43; The vertical drive screw 8 is rotatably installed inside the detection box 5. The output shaft end of the vertical drive motor 6 drives the vertical drive screw 8 to rotate through the first transmission gear set 7. The vertical drive screw 8 is threadedly connected to the sliding frame 2. After the horizontal drive motor 3 starts, it drives the horizontal drive screw 4 to rotate through the output shaft. The horizontal drive screw 4 drives the sliding frame 2, which is threaded to it, to slide along the direction of the horizontal drive screw 4. Thus, the sliding frame 2 drives the detection box 5 to move horizontally inside the frying tank 101. After the vertical drive motor 6 starts, it drives the first transmission gear set 7 through the output shaft. Thus, the first transmission gear set 7 drives the vertical drive screw 8 to rotate. The first transmission gear set 7 consists of two gears and a conveyor belt. The two gears are coaxially fixedly connected to the output shaft of the vertical drive motor 6 and the vertical drive screw 8, respectively. The conveyor belt is connected to the two gears for transmission. After the vertical drive screw 8 rotates, it drives the sliding frame 2, which is threaded to it, to move vertically. Thus, the sliding frame 2 and the detection box 5 move vertically relative to each other. The vertical height of the sliding frame 2 is fixed, so that the vertical height of the detection box 5 can be adjusted. This allows the detection box 5 to be adjusted to below the liquid level to detect the oil during use, and to above the oil level when the oil is heated, reducing the possibility of high-temperature oil entering the detection box 5 and affecting the service life of the equipment.

[0035] As an optional embodiment, the reciprocating drive component includes: Two rotating rods 23 are symmetrically mounted on the side wall of the detection box 5. The first motor 21 is fixed inside the shield box 43. The output shaft of the first motor 21 drives the two rotating rods 23 to rotate synchronously through the second transmission gear set 22. Two second reciprocating screws 25 are symmetrically rotated and installed inside the inner cavity. The ends of the two second reciprocating screws 25 are fixed with second bevel gears 26. The two second reciprocating screws 25 are threadedly connected to the first scraper plate 2701. Two first bevel gears 24 are fixed on the outer walls of two rotating rods 23, and the two first bevel gears 24 mesh with two second bevel gears 26 respectively; The driving speed of the first scraper plate 2701 can be adjusted by replacing the second reciprocating screw 25 with a different pitch; After the first motor 21 starts, it drives the second transmission gear set 22 through the output shaft. The second transmission gear set 22 drives the two rotating rods 23 to rotate synchronously. The second transmission gear set 22 consists of three gears and a conveyor belt. The three gears rotate synchronously through the transmission belt. The three gears are coaxially fixedly connected to the two rotating rods 23 and the output shaft of the first motor 21, respectively. After the rotating rods 23 rotate, they drive the first bevel gear 24 to rotate. After the first bevel gear 24 rotates, it drives the second bevel gear 26 that meshes with it to rotate. After the second bevel gear 26 rotates, it drives the second reciprocating screw 25 to rotate. The rotation of the second reciprocating screw 25 in the same direction can drive the first scraper plate 2701 connected to it to move cyclically along the symmetrically arranged threads of the second reciprocating screw 25 through the sliding contact. This drives the first scraper plate 2701 to move back and forth along the threads of the second reciprocating screw 25, thereby driving the first scraper plate 2701 to move back and forth and push the particles to accumulate.

[0036] As an optional embodiment, the traffic diversion component includes: The drive partition 17 is fixed inside the inner cavity of the detection box 5, and the drive partition 17 separates the bottom of the inner cavity into a drainage cavity. The first one-way valve 19 is slidably installed inside the drainage cavity via a sliding block, and the edge of the sliding block is slidably sealed to the drainage cavity via a rubber strip; The drain outlet is located on the side wall of the test chamber 5 and is connected to the drainage chamber. A second one-way valve 20 is fixed inside the drain outlet. Both first reciprocating screws 18 are threadedly connected to the first check valve 19; The two rotating rods 23 drive the two first reciprocating screws 18 to rotate through the first bevel gear set 33, which is composed of two meshing bevel gears. The first check valve 19 and the second check valve 20 ensure that the oil can only pass through in one direction from the first check valve 19 to the second check valve 20. The rotating rod 23 drives the first reciprocating screw 18 to rotate through the first bevel gear set 33. The two first reciprocating screws 18 rotate synchronously. After the first reciprocating screw 18 rotates, it drives the sliding block to move the first one-way valve 19 back and forth. When the first one-way valve 19 moves away from the second one-way valve 20, a negative pressure is formed in the space between the first one-way valve 19 and the second one-way valve 20 inside the drainage chamber. Since external liquid can only enter the space between the first one-way valve 19 and the second one-way valve 20 through the first one-way valve 19 in one direction, under the action of negative pressure, the oil passes through the first one-way valve 19 and enters the space between the first one-way valve 19 and the second one-way valve 20. When the first one-way valve 19 moves toward the second one-way valve 20, the first one-way valve 19 and the second one-way valve 20 squeeze the oil between them, so that the oil is discharged through the second one-way valve 20 inside the drain port, thereby driving the oil. This is beneficial for detecting particulate matter in the oil by driving the oil to circulate.

[0037] As an optional embodiment, the oil change detection component includes: The inclined guide plate 15 is fixed inside the cavity of the detection box 5; The secondary filter plate 16 is slidably connected to the bottom of the inclined guide plate 15, and the ends of the secondary filter plate 16 are symmetrically threaded with two fourth reciprocating screws 34. The electric telescopic rod 37 is fixedly installed on the top of the rotating rod 23 by a bracket, and the rotating rod 23 has a vertical groove inside; Straight rod 36 is fixed to the telescopic rod end of electric telescopic rod 37. Straight rod 36 is slidably inserted into the interior of vertical groove. The bottom of straight rod 36 passes through vertical groove and extends out through two protrusions. The straight rod 36 drives the fourth reciprocating screw 34 to rotate through the second bevel gear set 35. The second bevel gear set 35 consists of two meshing bevel gears, which are fixedly connected to the straight rod 36 and the fourth reciprocating screw 34 respectively. The second scraper plate 2702 is slidably connected to the inside of the inner cavity and is used to scrape the particles separated at the top of the secondary filter plate 16. Both third reciprocating screws 30 are threadedly connected to the second scraper plate 2702, and both third reciprocating screws 30 have a fourth bevel gear 31 fixed at their ends; Two third bevel gears 29 are fixedly connected to two rotating rods 23 respectively, and mesh with two fourth bevel gears 31 respectively; The second detection frame 32 is slidably inserted into the interior of the cavity, and the second scraper 2702 pushes the separated particles above the secondary filter plate 16 toward the second detection frame 32 for collection. The second pressure sensor is fixed on the side wall of the second detection frame 32. After the particles inside the second detection frame 32 are full, the second scraper plate 2702 pushes the particles to squeeze the second pressure sensor. When the accumulation warning component detects that the amount of medium particulate matter exceeds the limit, the control unit activates the electric telescopic rod 37. After activation, the electric telescopic rod 37 drives the straight rod 36 upwards. The movement of the straight rod 36 engages the two bevel gears of the second bevel gear set 35, causing the rotating rod 23 to rotate. This rotation, in turn, drives the fourth reciprocating screw 34 to rotate via the straight rod 36 and the second bevel gear set 35. The rotation of the fourth reciprocating screw 34 then extends the connected secondary filter plate 16. After a set time interval, the electric telescopic rod 37 resets, disengaging the second bevel gear set 35, and the rotation of the rotating rod 23 no longer engages the second bevel gear set 35. When the fourth reciprocating screw 34 rotates, the secondary filter plate 16 is extended. The oil flows down the primary filter plate 14 and is filtered and separated by the secondary filter plate 16. Thus, when initially detecting medium-sized particles, the secondary filter plate 16 is in a contracted state, and the oil flows directly into the drainage chamber after passing through the primary filter plate 14. This helps to avoid the secondary filter plate 16 with a higher mesh size interfering with the flow of the oil, thereby reducing working efficiency. When the medium-sized particles exceed the limit and fine particles need to be detected, the secondary filter plate 16 extends, so that the fine particles in the oil are separated by the secondary filter plate 16. The rotation of the rotating rod 23 drives the third reciprocating screw 30 to rotate via the third bevel gear 29 and the fourth bevel gear 31. The third reciprocating screw 30 drives the second scraper plate 2702 to move back and forth. The second scraper plate 2702 pushes the accumulated particles to be collected by the second detection frame 32. The second detection frame 32 has the same filtration effect as the secondary filter plate 16. When the particles inside the second detection frame 32 are full, the second scraper plate 2702 pushes the particles again. After the particles continue to accumulate, they squeeze the second pressure sensor, thereby triggering the second pressure sensor. That is, the fine particles separated by the second scraper plate 2702 have reached the limit value. At this time, the control unit controls the triggering of the warning light to remind the staff that the fine particles in the oil have reached the limit value, thus prompting the staff to replace the oil. This is beneficial for reminding the staff to replace the oil when the fine particles that are difficult to clean accumulate after repeated use of the oil and reach the limit value. It also helps to reduce the staff's need to re-test the oil, thereby improving work efficiency.

[0038] As an optional embodiment, the automatic feeding component includes: The sealed cavity is formed by dividing the interior of the cavity with a heat-insulating partition plate; The discharge cylinder 13 is fixed inside the sealed cavity. The end of the telescopic rod of the discharge cylinder 13 passes through the guide partition 10, and the end of the telescopic rod of the discharge cylinder 13 passes through the sealing ring and slides and seals with the side wall of the guide partition 10. The end of the telescopic rod of the discharge cylinder 13 is fixedly connected to the edge of the lifting frame 11 by a connecting block; The sealed cavity created by the heat insulation partition plate allows the discharge cylinder 13 to operate in a sealed state, thus preventing oil from entering the discharge cylinder 13 and affecting its service life. The discharge cylinder 13 is started by the control unit, and the discharge cylinder 13 pushes the lifting frame 11 upward through the telescopic rod, which in turn causes the lifting frame 11 to move the collection frame 12 upward. After the collection frame 12 moves upward, the staff can remove the collection frame 12 for cleaning, which helps to clean the particles collected inside the collection frame 12 in a timely manner and avoids the situation where particles accumulate and interfere with the test results.

[0039] As an optional embodiment, it also includes: A stirring assembly is used to move with the detection unit and stir the oil inside the frying tank 101 so that the oil particles entering the detection unit are uniform. The control unit is also used to synchronously control the start of the stirring assembly when the detection unit is started; The stirring component can move with the detection box 5, thereby continuously stirring the oil entering the detection box 5. This helps to make the particles in the oil uniform and prevents the particles in the oil from settling to the bottom of the frying tank 101 and affecting the detection and judgment of the oil.

[0040] As an optional embodiment, the stirring assembly includes: The second motor 38 is fixed inside the shielding box 43, and the output shaft of the second motor 38 is fixed with a rotating shaft 39. The transmission cavity is located inside the detection box 5; Multiple turbines 41, optionally three, are rotatably connected to the inside of the transmission chamber; The worm gear 40 is correspondingly set to the turbine gear 41, and is fixedly connected end to end in sequence, both of which are fixedly connected coaxially to the rotating shaft 39. The worm gear 40 meshes with the corresponding turbine gear 41; Multiple stirring blades 42 are arranged corresponding to turbines 41. The stirring blades 42 pass through the side wall of the detection box 5 through the central shaft and are coaxially and fixedly connected to the corresponding turbines 41. The stirring blade 42 is connected to the side wall of the detection chamber 5 by a sealing strip; After the second motor 38 starts, it drives the rotating shaft 39 to rotate via the output shaft. The rotating shaft 39 drives the worm gear 40 to rotate, which in turn drives the turbine 41 to rotate. The turbine 41 then drives the stirring blade 42 to rotate. The stirring blade 42, located below the inlet 9, stirs the oil before it enters the inlet 9, ensuring that any sediment at the bottom is mixed in with the oil. This helps prevent the oil from meeting the standards for suspended particulate matter detection when sediment settles. However, during oil use, boiling causes sediment at the bottom to mix into the oil, resulting in a difference between the amount of suspended particulate matter detected during oil use and the amount detected during use. Consequently, the oil test results cannot reflect the state of suspended particulate matter during oil use, leading to inaccurate test results. This improves the accuracy of suspended particulate matter detection in oil, allowing for timely treatment or replacement of the oil.

[0041] As an optional embodiment, it also includes: The partition component is used to partition and isolate the oil inside the frying tank 101, and moves with the movement of the detection unit to separate the detected and undetected oil inside the frying tank 101. As an optional embodiment, the spacing component includes: The fixing plate 45 is fixed to the side wall of the testing box 5; The baffle plate 46 is rotatably connected to the side wall of the fixed plate 45; During oil testing, the operator rotates the baffle plate 46, dividing the frying tank 101 into two parts. After the baffle plate 46 is flipped to be flush with the fixed plate 45, its edge is obstructed by the fixed plate 45 and cannot continue to flip. Thus, during the movement of the testing box 5, the baffle plate 46 is resisted by the oil and will not flip. The inlet 9 and outlet of the testing box 5 are located on opposite sides, and after the baffle plate 46 is flipped, it is located between the inlet 9 and the outlet. This allows the oil to flow from one side of the baffle plate 46 to the other side during the testing process, thereby blocking the oil before and after the test. This helps to reduce the mutual flow of oil between the two sides, thus reducing the possibility of the oil being filtered and discharged during the testing process and mixing with the original oil, which would increase the testing time and improve the efficiency of oil testing.

[0042] like Figure 1 The method for detecting oil levels in a deep fryer, as shown, includes the following steps: The system activates the oil change detection component based on information indicating excessive buildup, in order to detect whether the oil needs to be replaced. When the first detection frame 28 is filled with particles, the first pressure sensor is squeezed. At this time, the first pressure sensor generates information about excessive accumulation based on the pressure information and sends the information to the control unit. The control unit generates control information for the oil change detection component based on the information about excessive accumulation. Subsequently, the control unit sends the control information for the oil change detection component to the oil change detection component to control the oil change detection component to start. After the oil change detection component starts, it performs fine particle detection on the oil to determine whether the oil needs to be replaced.

[0043] As an optional embodiment, it also includes: The automatic discharge component is activated based on the information that the large particles are full, so as to control the discharge and cleaning when the large particles are full. When the collection box 12 is full, the infrared sensor acquires the information that the large particles are full and sends the information to the control unit. The control unit generates discharge control information based on the information that the large particles are full and sends the discharge control information to the automatic discharge component to control the automatic discharge component to start. After the automatic discharge component starts, it drives the primary screening component to discharge the material, so as to automatically control the discharge when the large particles are full.

[0044] As an optional embodiment, it also includes: The warning light is activated based on information indicating excessive fine particles, serving as a reminder to change the oil. When the second detection frame 32 is full of particles, the second pressure sensor is squeezed. At this time, the second pressure sensor generates fine particle exceeding the standard information based on the pressure information and sends the fine particle exceeding the standard information to the control unit. The control unit generates warning control information based on the fine particle exceeding the standard information, and then sends the warning control information to the warning light to control the warning light to start. After the warning light is started, it prompts to change the oil.

[0045] The working principle of this invention is as follows: For reusable oil, the oil is in a cooled state at the start of each use. At this time, the operator controls the movement drive component to start via the control unit. After starting, the movement drive component first lowers the detection unit below the oil surface, allowing the oil to pass through for detection. Then, the control unit controls the detection unit to start, specifically activating the flow guide component within the detection unit. This flow guide component drives the flow of the oil, causing the oil inside the frying tank 101 to circulate through the primary screening component and the accumulation warning component. When the oil passes through the primary screening component, it removes large particles that are clearly visible to the naked eye. These large particles can be easily removed manually and will not interfere with subsequent frying. The removal of large particles after passing through the primary screening component reduces interference with the subsequent accumulation warning component. Furthermore, the removal of large particles eliminates the need for manual removal of large particles in subsequent uses, thus improving efficiency. In terms of work efficiency, the oil after removing large particles reaches the accumulation warning component. This component separates medium-sized particles from the oil. The definition of medium-sized particles can be limited according to actual separation needs; for example, it can be limited to particles that can be filtered through a 200-mesh sieve. This allows the oil to undergo secondary filtration and separation through the accumulation warning component, further separating medium-sized particles and accumulating them. During a single detection process, if the total amount of accumulated particles reaches a certain limit, it indicates that the medium-sized particles in the oil are greater than or equal to the limit. At this point, the control unit triggers a warning light, alerting staff that the medium-sized particles in the oil exceed the limit. This facilitates the detection of particulate matter in the oil before use, separating particles during the detection process, and alerting staff when the particulate matter level exceeds the limit, thus reminding them to treat or replace the oil. This helps reduce the occurrence of interference or safety hazards caused by excessive particulate matter during oil use.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An oil detection device for a deep fryer, comprising a deep fryer body (1), wherein the deep fryer body (1) includes a frying tank (101) for frying, characterized in that, Also includes: The detection unit is installed inside the frying tank (101) via a moving drive assembly and is used to move and sample the oil inside the frying tank (101) for detection. The detection unit is also used to separate particulate matter in the oil while detecting it. The detection unit includes a primary screening component for screening large particles to remove large particles in the oil that interfere with detection. The detection unit also includes an accumulation warning component for detecting the amount of particles to reflect the amount of suspended particles in the oil based on the amount of particle accumulation. The detection unit also includes a flow guiding component for driving the oil flow, so as to drive the oil flow through the primary screening component and the accumulation warning component; The control unit is used to control the detection unit to start detecting the oil when it is necessary to detect the oil, and is also used to control the triggering of the warning light when the amount of particulate matter accumulated in the accumulation warning component exceeds the limit value; Also includes: The oil change detection component is used to detect the amount of fine particles in the oil after passing through the detection unit, so as to trigger a warning light to prompt an oil change when the amount of fine particles in the oil reaches a certain value. The control unit is also used to control the oil change detection component to start when the amount of particulate matter in the accumulation warning component exceeds the limit value, so as not to interfere with the detection of the detection unit when the particulate matter in the oil does not reach the limit value, and to start detecting the amount of fine particles when the particulate matter in the oil reaches the limit value. The primary screening component includes: The testing box (5) has an internal cavity. The stacking warning component includes: The primary filter plate (14) is fixed inside the inner cavity; The first scraper plate (2701) is slidably connected to the inside of the inner cavity and is used to push the particles separated on the primary filter plate (14) to converge. A reciprocating push assembly is used to push the first scraper plate (2701) to reciprocate on top of the primary filter plate (14); The first detection frame (28) is slidably inserted into the interior of the cavity. The first scraper plate (2701) pushes the separated particles above the primary filter plate (14) toward the first detection frame (28) for collection. The first pressure sensor is fixed on the side wall of the first detection frame (28). After the particles inside the first detection frame (28) are filled, the first scraper (2701) pushes the particles to squeeze the first pressure sensor. Also includes: A partition component is used to partition and isolate the oil inside the frying tank (101), and moves with the movement of the detection unit to separate the detected and undetected oil inside the frying tank (101).

2. The oil detection device for a deep fryer according to claim 1, characterized in that, Also includes: An automatic discharge assembly is used to automatically eject large particles collected in the primary screening assembly when the assembly is full, so as to discharge and clean the large particles collected during screening. The control unit is also used to activate the automatic discharge component when large particles in the primary screening component exceed a certain limit.

3. The oil detection device for a deep fryer according to claim 2, characterized in that, The primary screening component also includes: The inlet (9) is located on the side wall of the detection box (5) and is used to supply oil. A solenoid valve is installed inside the inlet (9). A guide baffle (10) is fixed inside the inner cavity to guide the flow of oil. The lifting frame (11) contains a collection frame (12), and the oil enters the collection frame (12) under the guidance of the guide partition (10) to complete the large particle screening; An infrared sensor is installed on the top of the detection box (5) to detect the total amount of particulate matter collected inside the collection box (12).

4. The oil detection device for a deep fryer according to claim 2, characterized in that, Also includes: A stirring assembly is used to move with the detection unit and to stir the oil inside the frying tank (101) so that the oil particles entering the detection unit are uniform. The control unit is also used to synchronously control the stirring assembly to start when the detection unit is started.

5. A detection method for an oil level detection device for a deep fryer, applicable to the oil level detection device for a deep fryer as described in claim 2, characterized in that, The detection method includes the following steps: Obtain oil change detection request information, which is generated by the first pressure sensor after acquiring pressure information; Based on the oil change detection request information, control information for the oil change detection component is generated, and the control information for the oil change detection component is used to control the start of the oil change detection component. The control information of the oil change detection component is sent to the oil change detection component to control the oil change detection component to start fine particle detection of the oil to detect whether the oil needs to be replaced.

6. The detection method of the oil detection device for a deep fryer according to claim 5, characterized in that, Also includes: The automatic discharge component is activated based on the information that the large particles are full, so as to control the discharge and cleaning when the large particles are full.

7. The detection method of the oil detection device for a deep fryer according to claim 5, characterized in that, Also includes: The warning light is activated based on the information indicating excessive fine particles, so as to prompt an oil change.

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