Edible vegetable oil harmful substance detection and identification device and detection method thereof

Abstract

The invention relates to the technical field of edible vegetable oil detection, and provides an edible vegetable oil harmful substance detection and identification device and a detection method thereof.The edible vegetable oil harmful substance detection and identification device comprises a device shell, a filter screen frame and an activated carbon screen plate, a hydraulic rod is fixedly installed at the side end of the bottom of the device shell, and a cover plate is fixedly installed at the top end of the hydraulic rod; the device comprises a device shell, a cover plate is installed on the device shell, an automatic switching assembly is installed on the cover plate, an integrated processing assembly is installed on the cover plate, a transfer frame is fixedly welded to the bottom end face in the device shell, the top of the transfer frame is rotationally connected with a sealing plate through a sealing bearing, and a detection barrel is fixedly welded to the sealing plate. A through groove is formed in the top of the detection barrel in a penetrating mode, and a first air inlet pipe and a first exhaust pipe are fixedly connected to the top of the detection barrel. By means of the technical scheme, the problem that in the prior art, edible vegetable oil harmful substance detection and identification equipment cannot conduct automatic cleaning, drying, feeding and follow-up automatic detection on the detection container is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of edible vegetable oil detection, and in particular to a device for detecting and identifying harmful substances in edible vegetable oil and a detection method thereof. Background Art

[0002] Edible vegetable oils are oils extracted from seeds, fruits or other parts of plants and are widely used in cooking, baking and processed foods. They are mainly composed of fatty acids and rich in unsaturated fatty acids. They are often considered to be healthier than animal fats. Therefore, edible vegetable oils are an important part of daily diet. Choosing suitable oils and using them reasonably can help improve the nutritional value and health benefits of the diet. In the production and processing of edible vegetable oils, in order to ensure consumer health, meet regulatory requirements and improve product quality, it is necessary to use detection and identification equipment to detect harmful substances in edible vegetable oils.

[0003] However, there are some problems in the actual working process of the existing edible vegetable oil harmful substance detection and identification equipment. For example, an edible oil quality detection system with a publication number of CN105866359B can use the cooperation of inert gas and multiple gas sensors to quickly and accurately detect and identify various components and corresponding contents in edible oil during the working process, thereby realizing rapid and accurate detection and identification of harmful substances in edible oil, but its practicality is poor. During the working process, it cannot automatically clean, dry, load and perform subsequent automatic detection work on the detection container. The staff needs to manually clean, dry, load and perform subsequent detection and discharge work on the detection container. The degree of automation is low, resulting in low work efficiency and high labor intensity for the staff; and during the actual working process, it cannot automatically and stably filter and purify the inert gas and drying air that need to be used, so dust, impurities and toxic substances in the inert gas and drying gas are very easy to enter or adhere to the detection container, which will lead to inaccurate results of subsequent detection and identification. Therefore, it is necessary to provide an edible vegetable oil harmful substance detection and identification device and a detection method thereof to meet the needs of users. Summary of the invention

[0004] The present invention proposes a device for detecting and identifying harmful substances in edible vegetable oil and a detection method thereof, which solves the problem that the edible vegetable oil harmful substance detection and identification equipment in the related art is unable to automatically clean, dry, load and perform subsequent automatic detection work on the detection container, and is unable to automatically and stably filter and purify the inert gas and drying air required for use.

[0005] The technical solution of the present invention is as follows:

[0006] A device for detecting and identifying harmful substances in edible vegetable oils, comprising a device shell, a filter frame and an activated carbon mesh plate, a hydraulic rod is fixedly installed on the bottom side end of the device shell, a cover plate is fixedly installed on the top end of the hydraulic rod, an automatic switching component is installed on the cover plate, an integrated processing component is installed on the cover plate, a transfer frame is welded and fixed on the inner bottom end surface of the device shell, a sealing plate is rotatably connected to the top of the transfer frame through a sealing bearing, a detection barrel is welded and fixed on the sealing plate, a through groove is opened through the top of the detection barrel, a first air intake pipe and a first exhaust pipe are fixedly connected to the top of the detection barrel, a sealing ring is fixedly connected to the top end of the first air intake pipe and the top end of the first exhaust pipe, and the bottom side end of the detection barrel is connected to the first Drain pipe, the bottom end of the first drain pipe is connected to the sealing plate, the bottom of the transfer frame is connected to the second drain pipe, the cover plate is connected to the water inlet pipe, the inner bottom surface of the device shell is fixed with a first electric heating tube, the inner wall of the device shell is welded and fixed with a storage frame, the inner bottom surface of the storage frame is fixed with an elastic protective cloth with screws, the top of the elastic protective cloth is fixed to the bottom surface of the cover plate with screws, the first processing frame and the second processing frame are welded and fixed on the cover plate, the top surface of the cover plate is fixed with a detection device, a detection air chamber is provided in the detection device, a circuit board is installed in the detection air chamber, a gas sensitive sensor is installed on the circuit board, and the side end of the detection device is connected with a second exhaust pipe and a pressure relief valve.

[0007] As a preferred solution of the present invention, the automatic switching component includes a first servo motor, which is welded and fixed on the top surface of the cover plate, a first turntable and a rotating rod are welded and fixed on the output shaft of the first servo motor, a first shifting rod is welded and fixed on the end of the rotating rod, a rotating cylinder is rotatably connected to the bottom surface of the cover plate, a second turntable and a second shifting rod are welded and fixed on the rotating cylinder, a limiting rod is slidingly connected in the rotating cylinder, and the bottom end of the limiting rod is welded and fixed on the top surface of the sealing plate.

[0008] As a preferred solution of the present invention, the side end surface of the first turntable is in contact with the side end surface of the second turntable, the side end surface of the second turntable is in an arc shape, a groove is provided on the first turntable, and the length of the groove on the first turntable is greater than the length of the second turntable, four second levers are provided, and the four second levers are distributed at equal angles on the rotating cylinder, the vertical center line of the rotating cylinder, the vertical center line of the cover plate and the vertical center line of the device housing are located on the same vertical line, the cross-section of the limit rod is rectangular, the diameter of the cover plate is greater than the diameter of the device housing, and the top end surface of the device housing is in contact with the bottom end surface of the cover plate.

[0009] As a preferred solution of the present invention, the integrated processing component includes a second servo motor, a first liquid guide tube and a first air guide tube, the output shaft of the second servo motor, the first liquid guide tube and the first air guide tube are all welded and fixed with pulleys, the pulleys are connected with a synchronous toothed belt, the first liquid guide tube is rotatably connected to the cover plate, the top of the first air guide tube is connected with a bearing at the bottom end of the second processing frame, the first liquid guide tube and the first air guide tube are both provided with a first through hole, the first liquid guide tube is provided with a second through hole, the first liquid guide tube is fixedly connected with a first flexible brush, a first connecting plate and a first gear, the side end of the first connecting plate is welded and fixed with a first connecting frame, the first connecting frame is welded and fixed to the bottom end surface of the cover plate, the first liquid guide tube is connected with a first connecting frame with a bearing, the first gear is meshed and connected with a second gear, the second liquid guide tube is welded and fixed to the second gear, the second liquid guide tube is connected with the first connecting frame with a bearing, the top of the second liquid guide tube is rotatably connected to the bottom of the first connecting frame through a bearing, the second liquid guide tube is provided with a third through hole, and the second liquid guide tube is fixedly connected with a second flexible brush.

[0010] As a preferred solution of the present invention, wherein: the second through holes are arranged in four groups, the four groups of second through holes are distributed at equal angles on the first liquid guide tube, each group of second through holes are distributed equidistantly on the first liquid guide tube, the second through holes and the first flexible brushes are distributed alternately, the third through holes are arranged in four groups, the four groups of third through holes are distributed at equal angles on the second liquid guide tube, each group of third through holes are distributed equidistantly on the second liquid guide tube, the third through holes and the second flexible brushes are distributed alternately, the first connecting frame is symmetrically distributed on both sides of the first connecting plate, the first connecting frame corresponds one-to-one with the second gear through the second liquid guide tube, and the length of the second liquid guide tube is greater than the length of the first air intake pipe.

[0011] As a preferred solution of the present invention, wherein: a first air hole is provided on the first air guide tube, a second connecting plate is welded and fixed on the first air guide tube, a second connecting frame is welded and fixed to the side end of the second connecting plate, the top end of the second connecting frame is fixed to the bottom end surface of the cover plate, the first air guide tube is rotatably connected to the second connecting frame via a bearing, a third gear is welded and fixed on the first air guide tube, a fourth gear is meshed and connected to the third gear, the second air guide tube is welded and fixed to the fourth gear, a second air hole is provided on the second air guide tube, the second air guide tube and the second connecting frame are connected by a bearing, and the top end of the second air guide tube is rotatably connected to the bottom of the second connecting frame via a bearing.

[0012] As a preferred scheme of the present invention, wherein: the second connecting frame is symmetrically distributed on both sides of the second connecting plate, the second connecting frame corresponds to the fourth gear one by one through the second air guide pipe, an oil inlet pipe and a fixing rod are welded and fixed to the cover plate, a third connecting plate is welded and fixed to the oil inlet pipe, a fourth connecting plate is welded and fixed to the bottom end of the fixing rod, a sealing gasket is fixedly connected to the bottom end faces of the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate, the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate are the same in shape and size, the bottom end faces of the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate are flush, and the side end faces of the sealing gasket fit with the inner wall of the through groove.

[0013] As a preferred solution of the present invention, there are four detection barrels, which are distributed at equal angles on the top surface of the sealing plate, and the detection barrels correspond to the first drain pipe one by one. The first drain pipe, the second drain pipe and the water inlet pipe are all equipped with solenoid valves. The top of the first processing frame is connected to the second air inlet pipe, and the bottom of the first processing frame is connected to the third air inlet pipe. The diameter of the third air inlet pipe is equal to the diameter of the first air inlet pipe, and the diameter of the first exhaust pipe is equal to the diameter of the second exhaust pipe.

[0014] As a preferred solution of the present invention, the side ends of the first processing frame and the second processing frame are both welded and fixed with mounting frames, the side ends of the mounting frame are magnetically adsorbed and connected with magnetic plates, the magnetic plates are fixedly connected with rubber plates, the rubber plates are fitted with the inner wall of the mounting frame, a positioning groove is provided in the rubber plates, the side ends of the filter frame and the side ends of the activated carbon mesh plates are both fixedly connected with positioning blocks, the positioning blocks are slidably connected in the positioning grooves, a clamping groove is provided on the positioning blocks, a reset spring is fixedly connected to the rubber plates, the other end of the reset spring is welded and fixed with a clamping rod, the clamping rod is slidably connected to In the rubber plate, the end of the clamping rod is snap-connected in the clamping groove, the top of the second processing frame is connected to the third gas pipe, the second processing frame is installed and fixed with a second electric heating tube, the filter frame is fitted with the activated carbon mesh plate, the side end surface of the filter frame and the side end surface of the activated carbon mesh plate are both fitted with the inner wall of the first processing frame, the shape and size of the first processing frame are the same as the shape and size of the second processing frame, the length of the filter frame is equal to the length of the rubber plate, the positioning block is fixed at the middle part of the side end of the filter frame and the middle part of the side end of the activated carbon mesh plate, and the second electric heating tubes are equidistantly distributed in the second processing frame.

[0015] A method for detecting harmful substances in edible vegetable oils comprises the following steps:

[0016] S1: The automatic switching component and the integrated processing component are used to automatically clean, dry and load the detection barrel, and move the detection barrel to the detection position;

[0017] S2: using the first electric heating tube to heat the water in the device housing at a constant temperature, so as to achieve constant temperature water bath heating of the detection barrel;

[0018] S3: uniformly conveying inert gas into the detection barrel through the second air inlet pipe to help the edible vegetable oil volatilize, and the volatilized gas enters the detection device through the first exhaust pipe and the second exhaust pipe;

[0019] S4: The various gas sensors in the detection device can be used to detect and identify the various components and corresponding contents contained in the edible vegetable oil, and complete the identification and detection of the components and corresponding contents of various harmful substances contained in the edible vegetable oil.

[0020] The working principle and beneficial effects of the present invention are:

[0021] 1. The present invention is provided with an automatic switching component, which utilizes the rotation of the first turntable and the rotating rod, and the intermittent movement of the second lever by the first lever, combined with the second turntable, can drive the rotating cylinder to automatically and intermittently rotate 90° each time, and utilizes the 90° intermittent rotation of the rotating cylinder to drive the four detection barrels to automatically and stably switch positions through the limit rod, thereby driving the detection barrels to gradually move to directly below the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate, thereby ensuring the convenience and efficiency of subsequent automatic cleaning, drying, loading and testing of the detection barrels, and effectively improving the degree of automation of the detection and identification device.

[0022] 2. The present invention is provided with an integrated processing assembly. When the detection barrel moves to the first connecting plate, under the meshing driving action of the first gear and the second gear, the first liquid guide tube and the second liquid guide tubes on both sides are rotated to spray water evenly through each second through hole and each third through hole. At the same time, in conjunction with each first flexible brush and each second flexible brush, the inner wall of the detection barrel, the inner and outer walls of the first intake pipe, and the inner and outer walls of the first exhaust pipe can be cleaned efficiently and evenly, so as to avoid the residual chemical substances or pollutants in the detection barrel interfering with the subsequent detection and identification results, thereby ensuring the subsequent detection and identification work. accuracy; then the detection barrel moves to the second connecting plate, and similarly, by utilizing the synchronous rotation of the first air duct and the second air ducts on both sides, the first air hole and each second air hole can transport the heated and dried air into the detection barrel, and then the inside of the detection barrel can be efficiently dried to avoid the residual moisture in the detection barrel from mixing with the edible vegetable oil, which will affect the accuracy of subsequent detection and identification work using the vegetable oil; then, by utilizing the automatic intermittent movement of the detection barrel, the subsequent loading and detection work can be automatically completed, which effectively improves the working efficiency of the detection and identification device, and at the same time improves the detection accuracy of the detection and identification device.

[0023] 3. The present invention is provided with a storage frame and an elastic protective cloth. When the detection barrel is switching its position, the hydraulic rod can push the cover plate to move upward, thereby driving the automatic switching component and the integrated processing component to move upward synchronously, thereby avoiding the automatic switching component and the integrated processing component from interfering with the movement of the detection barrel. While the cover plate moves upward, the elastic protective cloth can be stretched to avoid dust and impurities in the outside air from entering the device casing, thereby adversely affecting subsequent detection and identification work. At the same time, it can avoid the loss of water bath temperature inside the device casing, thereby affecting the stability of subsequent detection and identification work.

[0024] 4. The present invention is provided with a first processing frame and a second processing frame. The filter frame and the activated carbon mesh plate in the second processing frame can filter and adsorb and purify the dust, impurities and toxic substances in the air, and heat them through the second electric heating tube, thereby ensuring the high efficiency of the subsequent drying work of the detection barrel; similarly, the filter frame and the activated carbon mesh plate in the first processing frame can filter and adsorb and purify the dust, impurities and toxic substances in the inert gas, thereby preventing the dust, impurities and toxic substances in the inert gas from entering the edible vegetable oil and interfering with the subsequent detection and identification results, thereby increasing the diversity and stability of the detection and identification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the connection structure between the rotating cylinder and the limiting rod of the present invention;

[0028] Figure 3 It is a schematic diagram of the connection structure between the first connection plate and the first connection frame of the present invention;

[0029] Figure 4 It is a schematic diagram of the connection structure between the detection barrel and the through slot of the present invention;

[0030] Figure 5 It is a schematic diagram of the connection structure between the filter frame and the activated carbon screen plate of the present invention;

[0031] Figure 6 It is a schematic diagram of the overall main cross-sectional structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the overall side sectional structure of the present invention;

[0033] Figure 8 is a schematic diagram of a top view of the structure of the first rotating disk of the present invention;

[0034] Fig. 9 It is a schematic diagram of the side view structure of the synchronous toothed belt of the present invention;

[0035] Fig.10 is a schematic diagram of a top-sectional structure of a first connection frame of the present invention;

[0036] Fig.11 is a schematic diagram of a top view of the structure of the first gear of the present invention;

[0037] Fig.12 is a schematic diagram of the top-sectional structure of the first liquid guiding tube of the present invention;

[0038] Fig.13 is a schematic diagram of the top-sectional structure of the second liquid guiding tube of the present invention;

[0039] Fig.14 It is a schematic diagram of the top view of the sealing plate of the present invention;

[0040] Fig.15 It is a schematic diagram of the cross-sectional structure of the elastic protective cloth of the present invention;

[0041] Fig.16 It is a schematic diagram of the main cross-sectional structure of the first processing frame of the present invention;

[0042] Fig.17 The present invention Fig.16 The enlarged structural diagram at A in the middle;

[0043] Fig.18 is a schematic diagram of a top-sectional structure of a first processing frame of the present invention;

[0044] Fig.19It is a schematic diagram of the main cross-sectional structure of the first exhaust pipe of the present invention;

[0045] Fig. 20 It is a schematic diagram of the main structure of the detection air chamber of the present invention;

[0046] Fig.21 It is a schematic diagram of the side structure of the detection air chamber of the present invention.

[0047] In the figure: 1, device housing; 2, hydraulic rod; 3, cover plate; 4, automatic switching assembly; 401, first servo motor; 402, first turntable; 403, rotating rod; 404, first lever; 405, rotating cylinder; 406, second turntable; 407, second lever; 408, limit rod; 5, integrated processing assembly; 501, second servo motor; 502, pulley; 503, synchronous toothed belt; 504, first liquid guide tube; 505, first through hole; 506, second through hole; 507, first flexible brush; 508, first connecting plate; 509, sealing pad; 510, first connecting frame; 511, first connecting frame; 512, first gear; 513, second gear; 514, second liquid guide tube; 515, third through hole; 516, second flexible brush; 517, first air guide tube; 518, first air hole; 519, second connecting plate; 520, second connecting frame; 521, second connecting frame; 522, third gear; 523, fourth gear wheel; 524, second air guide pipe; 525, second air hole; 526, oil inlet pipe; 527, third connecting plate; 528, fixing rod; 529, fourth connecting plate; 6, transfer frame; 7, sealing plate; 8, detection barrel; 9, through groove; 10, first air inlet pipe; 11, first exhaust pipe; 12, sealing ring; 13, first drain pipe; 14, second drain pipe; 15, water inlet pipe; 16, first electric heating pipe; 17, storage frame; 18, elastic protective cloth; 19, first processing frame; 20. Second air intake pipe; 21. Third air intake pipe; 22. Mounting frame; 23. Magnetic plate; 24. Rubber plate; 25. Positioning groove; 26. Positioning block; 27. Filter frame; 28. Activated carbon mesh plate; 29. ​​Slot; 30. Reset spring; 31. Clamping rod; 32. Second processing frame; 33. Third air supply pipe; 34. Second electric heating pipe; 35. Detection device; 36. Detection air chamber; 37. Circuit board; 38. Gas sensor; 39. Second exhaust pipe; 40. Pressure relief valve. DETAILED DESCRIPTION

[0048] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1

[0050] like Figure 1 to Figure 21 As shown, this embodiment proposes a device for detecting and identifying harmful substances in edible vegetable oil, including a device shell 1, a filter frame 27 and an activated carbon mesh plate 28. A hydraulic rod 2 is fixedly installed on the bottom side end of the device shell 1, a cover plate 3 is fixedly installed on the top of the hydraulic rod 2, an automatic switching component 4 is installed on the cover plate 3, and an integrated processing component 5 is installed on the cover plate 3. A transfer frame 6 is welded and fixed on the inner bottom end surface of the device shell 1, and a sealing plate 7 is rotatably connected to the top of the transfer frame 6 through a sealed bearing. A detection barrel 8 is welded and fixed on the sealing plate 7, and a through groove 9 is opened on the top of the detection barrel 8. The top of the detection barrel 8 is fixedly connected with a first air inlet pipe 10 and a first exhaust pipe 11, and the top of the first air inlet pipe 10 and the top of the first exhaust pipe 11 are fixedly connected with a sealing ring 12. The bottom side of the detection barrel 8 is connected with a first drain pipe 13, and the bottom end of the first drain pipe 13 is connected to the sealing plate 7. The bottom of the transfer frame 6 is connected with a second drain pipe 14, and the cover plate 3 is connected with a water inlet pipe 15. The first electric heating tube 16 is fixedly installed on the inner bottom end surface of the device shell 1, and a storage frame 17 is welded and fixed on the inner wall of the device shell 1. The inner bottom end surface of the storage frame 17 is fixed with a spring The elastic protective cloth 18 is fixed on the bottom surface of the cover plate 3 by screws at the top of the elastic protective cloth 18, and the first processing frame 19 and the second processing frame 32 are welded and fixed on the cover plate 3. A detection device 35 is fixed on the top surface of the cover plate 3, and a detection air chamber 36 is arranged in the detection device 35, and a circuit board 37 is installed in the detection air chamber 36, and a gas sensitive sensor 38 is installed on the circuit board 37. The side end of the detection device 35 is connected with a second exhaust pipe 39 and a pressure relief valve 40. By utilizing the cooperation of the automatic switching component 4 and the integrated processing component 5, the integrated processing and detection work such as automatic cleaning, drying, and feeding of each detection barrel 8 can be automatically completed, so as to avoid the residual chemical substances or pollutants in the detection barrel 8 interfering with the subsequent detection and identification results, effectively improve the automation degree of the detection and identification device, thereby improving the working efficiency of the detection and identification device, and at the same time improving the detection accuracy of the detection and identification device, and in the working process of the device, the use of the elastic protective cloth 18 can prevent dust and impurities in the outside air from entering the device housing 1, causing adverse effects on the subsequent detection and identification work, and at the same time can prevent the water bath temperature inside the device housing 1 from being lost, affecting the stability of the subsequent detection and identification work.

[0051] Example 2

[0052] like Figure 1 to Figure 21 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a device for detecting and identifying harmful substances in edible vegetable oil.

[0053] In this embodiment, the automatic switching component 4 includes a first servo motor 401, which is welded and fixed on the top surface of the cover plate 3, a first turntable 402 and a rotating rod 403 are welded and fixed on the output shaft of the first servo motor 401, a first lever 404 is welded and fixed on the end of the rotating rod 403, a rotating cylinder 405 is rotatably connected to the bottom surface of the cover plate 3, a second turntable 406 and a second lever 407 are welded and fixed on the rotating cylinder 405, a limiting sliding connection is made with a limiting rod 408 in the rotating cylinder 405, the bottom end of the limiting rod 408 is welded and fixed on the top surface of the sealing plate 7, the side end surface of the first turntable 402 is fitted with the side end surface of the second turntable 406, the side end surface of the second turntable 406 is in an arc shape, a groove is provided on the first turntable 402, and the length of the groove on the first turntable 402 is greater than the length of the second turntable 406, four second levers 407 are provided, and the four second levers 407 are equiangularly distributed on the rotating cylinder 4 05, the vertical center line of the rotating cylinder 405, the vertical center line of the cover plate 3 and the vertical center line of the device housing 1 are located on the same vertical line, the cross-section of the limit rod 408 is rectangular, the diameter of the cover plate 3 is larger than the diameter of the device housing 1, and the top surface of the device housing 1 is in contact with the bottom surface of the cover plate 3. By utilizing the rotation of the first turntable 402 and the rotating rod 403, the intermittent movement of the second lever 407 by the first lever 404, combined with the second turntable 406, the rotating cylinder 405 can be driven to rotate automatically and intermittently, and each time it rotates 90°, the 90° intermittent rotation of the rotating cylinder 405 can be used to drive the four detection barrels 8 to automatically and stably switch their positions through the limit rod 408, thereby driving the detection barrel 8 to gradually move to the first connecting plate 508, the second connecting plate 519, the third connecting plate 527 and the fourth connecting plate 529 directly below, thereby ensuring the convenience and efficiency of the subsequent automatic cleaning, drying, loading and detection of the detection barrel 8.

[0054] In this embodiment, the integrated processing component 5 includes a second servo motor 501, a first liquid guide tube 504 and a first air guide tube 517. The output shaft of the second servo motor 501, the first liquid guide tube 504 and the first air guide tube 517 are all welded and fixed with a pulley 502, and the pulley 502 is connected to a synchronous toothed belt 503. The first liquid guide tube 504 is rotatably connected to the cover plate 3, and the top of the first air guide tube 517 is connected to the bottom bearing of the second processing frame 32. The first liquid guide tube 504 and the first air guide tube 517 are both provided with a first through hole 505, and the first liquid guide tube 504 is provided with a second through hole 506. The first liquid guide tube 504 is fixedly connected with a first flexible brush 507 and a first connecting plate 508 and the first gear 512, the side end of the first connecting plate 508 is welded and fixed with a first connecting frame 510, the first connecting frame 510 is welded and fixed to the bottom end surface of the cover plate 3, the first liquid guide tube 504 is connected with a first connecting frame 511 by a bearing, the first gear 512 is meshed and connected with a second gear 513, the second liquid guide tube 514 is welded and fixed to the second gear 513, the second liquid guide tube 514 is connected with the first connecting frame 510 by a bearing, the top end of the second liquid guide tube 514 is rotatably connected to the bottom of the first connecting frame 511 through a bearing, the second liquid guide tube 514 is provided with a third through hole 515, the second liquid guide tube 514 is fixedly connected with a second flexible brush 516, and the second through hole 506 There are four groups of second through holes 506, which are distributed at equal angles on the first liquid guiding tube 504. Each group of second through holes 506 is equidistantly distributed on the first liquid guiding tube 504. The second through holes 506 and the first flexible brushes 507 are alternately distributed. There are four groups of third through holes 515, which are distributed at equal angles on the second liquid guiding tube 514. Each group of third through holes 515 is equidistantly distributed on the second liquid guiding tube 514. The third through holes 515 and the second flexible brushes 516 are alternately distributed. The first connecting frames 510 are symmetrically distributed on both sides of the first connecting plate 508. The first connecting frames 510 correspond one-to-one with the second gears 513 through the second liquid guiding tube 514. The length of the second liquid guiding tube 514 is greater than that of the first connecting frame 510. The length of an air intake pipe 10, when the detection barrel 8 moves to the first connecting plate 508, under the meshing driving action of the first gear 512 and the second gear 513, the first liquid guide tube 504 and the second liquid guide tubes 514 on both sides are rotated to spray water evenly through each second through hole 506 and each third through hole 515. At the same time, in conjunction with each first flexible brush 507 and each second flexible brush 516, the inner wall of the detection barrel 8, the inner and outer walls of the first air intake pipe 10 and the inner and outer walls of the first exhaust pipe 11 can be cleaned efficiently and evenly, avoiding the residual chemicals or pollutants in the detection barrel 8 from interfering with the subsequent detection and identification results, thereby ensuring the accuracy of the subsequent detection and identification work.

[0055] In this embodiment, a first air hole 518 is provided on the first air guide tube 517, a second connecting plate 519 is welded and fixed on the first air guide tube 517, a second connecting frame 520 is welded and fixed on the side end of the second connecting plate 519, the top end of the second connecting frame 520 is fixed on the bottom end surface of the cover plate 3, the first air guide tube 517 is rotatably connected to the second connecting frame 521 through a bearing, a third gear 522 is welded and fixed on the first air guide tube 517, a fourth gear 523 is meshed and connected to the third gear 522, a second air guide tube 524 is welded and fixed on the fourth gear 523, and a second air hole is provided on the second air guide tube 524. 525, the second air duct 524 is connected to the second connecting frame 520 by a bearing, and the top of the second air duct 524 is rotatably connected to the bottom of the second connecting frame 521 through a bearing. When the detection barrel 8 moves to the second connecting plate 519, similarly, by utilizing the synchronous rotation of the first air duct 517 and the second air ducts 524 on both sides, the first air hole 518 and each second air hole 525 can transport the heated and dried air into the detection barrel 8, thereby enabling the interior of the detection barrel 8 to be efficiently dried, thereby preventing the residual moisture in the detection barrel 8 from mixing with the edible vegetable oil, which affects the accuracy of subsequent detection and identification work using the vegetable oil.

[0056] In this embodiment, the second connecting frame 520 is symmetrically distributed on both sides of the second connecting plate 519, and the second connecting frame 520 corresponds to the fourth gear 523 one by one through the second air guide pipe 524. An oil inlet pipe 526 and a fixing rod 528 are welded and fixed on the cover plate 3, a third connecting plate 527 is welded and fixed on the oil inlet pipe 526, and a fourth connecting plate 529 is welded and fixed on the bottom end of the fixing rod 528. A sealing gasket 509 is fixedly connected to the bottom end surface of the first connecting plate 508, the bottom end surface of the second connecting plate 519, the bottom end surface of the third connecting plate 527 and the bottom end surface of the fourth connecting plate 529. The first connecting plate 508, the second connecting plate 519, the third connecting plate 527 and the fourth connecting plate 529 have the same shape and size, and the bottom end surface of the first connecting plate 508, the bottom end surface of the second connecting plate 519, the bottom end surface of the third connecting plate 527 The end face is flush with the bottom face of the fourth connecting plate 529, the side face of the sealing gasket 509 is fitted with the inner wall of the through groove 9, four detection barrels 8 are arranged, and the four detection barrels 8 are distributed at equal angles on the top face of the sealing plate 7, the detection barrels 8 correspond one to one with the first drain pipe 13, the first drain pipe 13, the second drain pipe 14 and the water inlet pipe 15 are all equipped with solenoid valves, the top of the first processing frame 19 is connected to the second air inlet pipe 20, and the bottom of the first processing frame 19 is connected to the third air inlet pipe 21, the diameter of the third air inlet pipe 21 is equal to the diameter of the first air inlet pipe 10, and the diameter of the first exhaust pipe 11 is equal to the diameter of the second exhaust pipe 39. By utilizing the automatic intermittent movement of the detection barrel 8, the subsequent loading and detection work can be automatically completed, which effectively improves the working efficiency of the detection and identification device, and at the same time improves the detection accuracy of the detection and identification device.

[0057] In this embodiment, the side ends of the first processing frame 19 and the side ends of the second processing frame 32 are both welded and fixed with a mounting frame 22, and the side ends of the mounting frame 22 are magnetically adsorbed and connected with a magnetic plate 23, and a rubber plate 24 is fixedly connected to the magnetic plate 23, and the rubber plate 24 is fitted with the inner wall of the mounting frame 22, and a positioning groove 25 is opened in the rubber plate 24, and the side ends of the filter frame 27 and the activated carbon mesh plate 28 are both fixedly connected with a positioning block 26, and the positioning block 26 is slidably connected in the positioning groove 25, and the positioning block 26 is fixedly connected to the positioning groove 25. A slot 29 is provided on the block 26, a reset spring 30 is fixedly connected to the rubber plate 24, a clamping rod 31 is welded and fixed to the other end of the reset spring 30, the clamping rod 31 is slidably connected in the rubber plate 24, the end of the clamping rod 31 is clamped and connected in the slot 29, a third gas delivery pipe 33 is connected to the top of the second processing frame 32, a second electric heating pipe 34 is fixedly installed in the second processing frame 32, the filter frame 27 is fitted with the activated carbon mesh plate 28, and the side end surface of the filter frame 27 and the activated carbon mesh plate 28 are fixedly connected. The side end faces of the plate 28 are all in contact with the inner wall of the first processing frame 19, the shape and size of the first processing frame 19 are the same as those of the second processing frame 32, the length of the filter frame 27 is equal to the length of the rubber plate 24, the positioning block 26 is fixed to the middle part of the side end of the filter frame 27 and the middle part of the side end of the activated carbon mesh plate 28, and the second electric heating tubes 34 are equidistantly distributed in the second processing frame 32. The filter frame 27 and the activated carbon mesh plate 28 in the second processing frame 32 can be used to filter and adsorb and purify dust, impurities and toxic substances in the air, and heat them through the second electric heating tube 34, thereby ensuring the high efficiency of the subsequent drying work of the detection barrel 8; similarly, the filter frame 27 and the activated carbon mesh plate 28 in the first processing frame 19 can be used to filter and adsorb and purify dust, impurities and toxic substances in the inert gas, so as to prevent dust, impurities and toxic substances in the inert gas from entering the edible vegetable oil and interfering with the subsequent detection and identification results.

[0058] It should be noted that the present invention is a device for detecting and identifying harmful substances in edible vegetable oil and a detection method thereof. First, the staff can open the solenoid valve on the water inlet pipe 15, and use the water inlet pipe 15 to transport clean water to the inside of the device shell 1, and use the first electric heating tube 16 to heat it at a constant temperature to 50°C. Then the staff can drive the hydraulic rod 2. Under the driving action of the hydraulic rod 2, the cover plate 3 can be pushed to move upward. Under the movement of the cover plate 3, the elastic protective cloth 18 in the storage frame 17 can be pulled to stretch, so as to maintain the sealing of the inside of the device shell 1, and avoid dust and impurities in the outside air from entering the device shell 1, which will have an adverse effect on subsequent detection and identification work. At the same time, it can avoid the loss of water bath temperature inside the device shell 1, which will affect subsequent detection and identification work. The detection and identification work is stable; and under the movement of the cover plate 3, the sealing gasket 509 on the first connecting plate 508 can be pulled by the first connecting frame 510 to move away from the through groove 9 on the detection barrel 8, and the first liquid guide tube 504 can be driven to move away from the detection barrel 8, and at the same time, the second liquid guide tubes 514 on both sides can be driven to move away from the first air inlet pipe 10 and the first exhaust pipe 11 on the detection barrel 8; similarly, under the movement of the cover plate 3, the second connecting frame 520 can drive the second connecting plate 519 to move upward synchronously, and then drive the second air guide tube 524 to move away from the detection barrel 8, at the same time, the third connecting plate 527 can be driven to move away from the detection barrel 8 through the oil inlet pipe 526, and the fourth connecting plate 529 can be driven to move away from the detection barrel 8 through the fixing rod 528;

[0059] Subsequently, under the driving action of the first servo motor 401, the first rotating disk 402 and the rotating rod 403 can be driven to rotate synchronously through the output shaft, and the second lever 407 on the rotating cylinder 405 can be driven by the first lever 404 through the rotation of the rotating rod 403. Under the driving action of the first lever 404, the rotating cylinder 405 can be driven to rotate automatically through the second lever 407. When the first lever 404 drives the second lever 407, the groove on the first rotating disk 402 can face the second rotating disk 406. At this time, the first rotating disk 402 and the second rotating disk 406 are separated and not attached. Therefore, the rotating cylinder 405 can drive the second rotating disk 406 to rotate stably, and when the second rotating disk 406 is driven by the first lever 404, the groove on the first rotating disk 402 can face the second rotating disk 406. After the first rotating disk 406 and the first rotating disk 402 rotate, they can be fitted again. At this time, the first rotating disk 402 can fit and limit the second rotating disk 406 to prevent the rotating cylinder 405 on the second rotating disk 406 from rotating or shaking. In this way, the first lever 404 can intermittently move the second levers 407 to drive the rotating cylinder 405 to intermittently rotate clockwise, and each time it rotates 90°. Under the intermittent rotation of the rotating cylinder 405, the sealing plate 7 on the transfer frame 6 can be driven by the limiting rod 408 to perform synchronous intermittent clockwise rotation, and then the four detection barrels 8 can be driven to perform synchronous clockwise intermittent movement, so that the clockwise position switching of the four detection barrels 8 can be automatically completed;

[0060] During the clockwise position switching process of the four detection barrels 8, when the first detection barrel 8 moves to the bottom of the first connecting plate 508, the hydraulic rod 2 drives the cover plate 3 to move downward and reset. At this time, the elastic protective cloth 18 moves to the inside of the storage frame 17 for automatic storage, ensuring the convenience of subsequent repeated use. At the same time, the cover plate 3 drives the first connecting plate 508 to move downward and reset through the first connecting frame 510. At this time, the sealing gasket 509 on the first connecting plate 508 can be stably inserted into the through groove 9 on the detection barrel 8, and the first liquid guide tube 504 can be stably inserted into the detection barrel 8. At the same time, the first connecting The frame 510 can drive the second liquid guide tubes 514 on both sides to be inserted into the first air inlet pipe 10 and the first exhaust pipe 11 in the detection barrel 8 respectively. At this time, under the driving action of the second servo motor 501, the pulley 502 on the output shaft can drive the synchronous toothed belt 503, and then the pulley 502 can drive the first liquid guide tube 504 to rotate stably. At this time, the first liquid guide tube 504 can drive the second gears 513 on both sides to engage and drive through the first gear 512, and then the corresponding second liquid guide tubes 514 can be driven to rotate stably on the first connection frame 511 and the first connection frame 510, and the first liquid guide tube 5 During the rotation of the first liquid guiding tube 504 and the second liquid guiding tubes 514 on both sides, the staff can transport clean water into the first liquid guiding tube 504, and the clean water can be discharged through the second through holes 506 on the first liquid guiding tube 504. At the same time, the clean water can also be transported to the first connecting frame 511 through the first through holes 505 on the first liquid guiding tube 504, and then the clean water can be transported to the second liquid guiding tubes 514 on both sides and discharged through the third through holes 515 on the second liquid guiding tubes 514. Under the action of the rotation of the first liquid guiding tube 504 and the second liquid guiding tubes 514 on both sides, the first liquid guiding tube 504 Each first flexible brush 507 and each second flexible brush 516 on the second liquid guide tube 514 on both sides can efficiently and evenly complete the cleaning process of the inner wall of the detection barrel 8, the inner and outer walls of the first air inlet pipe 10, and the inner and outer walls of the first exhaust pipe 11, so as to avoid the residual chemical substances or pollutants in the detection barrel 8 interfering with the subsequent detection and identification results, thereby ensuring the accuracy of the subsequent detection and identification work. In addition, during the cleaning process of the detection barrel 8, by opening the solenoid valve on the first liquid discharge pipe 13, the cleaning waste water can be transported to the transfer frame 6 through the first liquid discharge pipe 13, and then discharged through the second liquid discharge pipe 14, which is convenient for subsequent recycling and treatment;

[0061] Then, through the same operation, the hydraulic rod 2 is driven again to push the cover plate 3 to move upward, and then the intermittent movement of the detection barrel 8 is continued. At this time, the cleaned detection barrel 8 moves to the bottom of the second connecting plate 519. At this time, the hydraulic rod 2 is driven to drive the cover plate 3 to move downward to reset. At this time, the second connecting plate 519 can drive the bottom sealing gasket 509 to automatically insert into the cleaned detection barrel 8. At the same time, the first air guide tube 517 can be stably inserted into the cleaned detection barrel 8, and the second air guide tubes 524 on both sides can be stably inserted into the first air intake pipe 10 and the first exhaust pipe 11 in the detection barrel 8. Under the driving action of the second servo motor 501, the pulley 502 on the output shaft can drive another synchronous toothed belt 503, and then the pulley 502 can drive the first air guide tube 517 to rotate stably. At this time, the first air guide tube 517 can drive the fourth gears 523 on both sides to engage and drive through the third gear 522, and then the corresponding second air guide tubes 524 can be driven to rotate on the second connecting frame 520 and the second connecting frame 521;

[0062] During the rotation of the first air duct 517 and the second air ducts 524 on both sides, the staff can use the third air delivery pipe 33 to transport air to the second processing frame 32. At this time, the filter frame 27 and the activated carbon mesh plate 28 in the second processing frame 32 can filter and adsorb and purify the dust, impurities and toxic substances in the air, and heat them through the second electric heating pipe 34. Then, the filtered, purified and heated air can be transported to the first air duct 517 and discharged through the first air hole 518. At the same time, the treated air can also pass through the first through hole 518 on the first air duct 517. 05 is transported to the second connection frame 521, and then the processed air can be transported to the second air ducts 524 on both sides, and discharged through the second air holes 525 on the second air ducts 524. The inner wall of the detection barrel 8, the inner and outer walls of the first air inlet pipe 10, and the inner and outer walls of the first exhaust pipe 11 can be dried efficiently and evenly by using the rotating jet of the first air duct 517 and the second air ducts 524 on both sides. In addition, during the cleaning process of the detection barrel 8, by opening the solenoid valve on the first drain pipe 13, the excess air can be transported to the transfer frame 6 through the first drain pipe 13, and then discharged through the second drain pipe 14.

[0063] Then, through the same operation, the hydraulic rod 2 is driven again to push the cover plate 3 to move upward, and then the intermittent movement of the detection barrel 8 is continued. At this time, the dried detection barrel 8 moves to the bottom of the third connecting plate 527. At this time, the hydraulic rod 2 is driven to drive the cover plate 3 to move downward and reset. At this time, the third connecting plate 527 can drive the bottom sealing gasket 509 to automatically insert into the dried detection barrel 8. Then, the staff can use the oil inlet pipe 526 to transport the edible vegetable oil to be tested into the detection barrel 8, and then drive the hydraulic rod 2 again to push the cover plate 3 to move upward, and then continue the intermittent movement of the detection barrel 8. At this time, the detection barrel 8 containing edible vegetable oil moves to the bottom of the fourth connecting plate 529. At this time, the hydraulic rod 2 is driven to drive the cover plate 3 to move downward and reset. At this time, the fourth connecting plate 529 can drive the bottom sealing gasket 509 to automatically insert into the dried detection barrel 8 for sealing. At the same time, the third air inlet pipe 21 can be sealed with the sealing ring on the first air inlet pipe 10 12 is tightly fitted, and the second exhaust pipe 39 is tightly fitted with the sealing ring 12 on the first exhaust pipe 11 to achieve pipeline connection. At this time, the inert gas can be transported into the first processing frame 19 through the second air inlet pipe 20, and the dust, impurities and toxic substances in the inert gas can be filtered and adsorbed and purified by the filter frame 27 and the activated carbon mesh plate 28 in the first processing frame 19 to prevent the dust, impurities and toxic substances in the inert gas from entering the edible vegetable oil. The inert gas and the water bath heating inside the device housing 1 can help the edible vegetable oil to volatilize. The volatilized gas enters the detection air chamber 36 in the detection device 35 through the first exhaust pipe 11 and the second exhaust pipe 39. The various gas sensors 38 on the circuit board 37 can detect and identify the various components and corresponding contents contained in the edible vegetable oil, complete the identification and detection of the components and corresponding contents of various harmful substances contained in the edible vegetable oil, and the excess gas is discharged through the pressure relief valve 40;

[0064] After the detection work is completed, the detection barrel 8 continues to perform intermittent movement. At this time, the detection barrel 8 moves again to the bottom of the first connecting plate 508. By opening the solenoid valve on the first liquid discharge pipe 13, the edible vegetable oil after the test can be transported to the transfer frame 6 through the first liquid discharge pipe 13, and then discharged through the second liquid discharge pipe 14, which is convenient for subsequent recycling and treatment; then the detection barrel 8 can be cleaned here, and then the subsequent drying, feeding and detection work are carried out, and the cycle is repeated. By using the synchronous movement of each detection barrel 8, the edible vegetable oil detection work can be carried out uninterruptedly, which effectively improves the detection efficiency;

[0065] After a long period of detection and identification work, the staff only needs to pull the magnetic plate 23 outwards until it moves out of the installation frame 22, so that the rubber plate 24, the filter frame 27 and the activated carbon screen plate 28 can be driven to move out of the first processing frame 19 or the second processing frame 32. Then the staff only needs to pull the clamping rod 31 on the rubber plate 24 outwards until the clamping rod 31 moves out of the clamping groove 29 on the positioning block 26, so as to conveniently complete the disassembly and separation between the filter frame 27 and the activated carbon screen plate 28 and the rubber plate 24, so that the filter frame 27 and the activated carbon screen plate 28 can be subsequently cleaned and replaced. Similarly, the staff only needs to pull the clamping rod 31 on the rubber plate 24 outwards in advance. And insert the positioning blocks 26 on the filter frame 27 and the activated carbon mesh plate 28 into the positioning grooves 25 on the rubber plate 24. Then the staff only needs to loosen the clamping rod 31. Under the elastic action of the reset spring 30, the clamping rod 31 can be driven to automatically engage in the clamping groove 29 on the positioning block 26, so that the filter frame 27 and the activated carbon mesh plate 28 can be conveniently and stably engaged on the rubber plate 24. Then, just insert the filter frame 27 and the activated carbon mesh plate 28 into the first processing frame 19 or the second processing frame 32, and use the magnetic adsorption of the magnetic plate 23 to conveniently complete the installation of the filter frame 27 and the activated carbon mesh plate 28, thereby ensuring the stability of the subsequent working state of the filter frame 27 and the activated carbon mesh plate 28.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting and identifying harmful substances in edible vegetable oil, characterized in that: The invention comprises a device housing (1), a filter screen frame (27) and an activated carbon screen plate (28); a hydraulic rod (2) is fixedly mounted on the bottom side of the device housing (1); a cover plate (3) is fixedly mounted on the top of the hydraulic rod (2); an automatic switching component (4) is mounted on the cover plate (3); an integrated processing component (5) is mounted on the cover plate (3); a transfer frame (6) is welded and fixedly mounted on the inner bottom end surface of the device housing (1); the top of the transfer frame (6) is rotatably connected to the transfer frame (6) via a sealed bearing. A sealing plate (7) is connected, a detection barrel (8) is welded and fixed on the sealing plate (7), a through groove (9) is opened through the top of the detection barrel (8), a first air intake pipe (10) and a first exhaust pipe (11) are fixedly connected to the top of the detection barrel (8), the top of the first air intake pipe (10) and the top of the first exhaust pipe (11) are both fixedly connected with a sealing ring (12), the bottom side end of the detection barrel (8) is connected to a first liquid discharge pipe (13), the bottom of the first liquid discharge pipe (13) is connected to the first liquid discharge pipe (13) and the bottom of the first liquid discharge pipe (13) is connected to the first liquid discharge pipe (13). The end of the transfer frame (6) is connected to the sealing plate (7), the bottom of the transfer frame (6) is connected to a second liquid discharge pipe (14), the cover plate (3) is connected to a water inlet pipe (15), a first electric heating pipe (16) is fixedly mounted on the inner bottom end surface of the device housing (1), a storage frame (17) is welded and fixedly mounted on the inner wall of the device housing (1), an elastic protective cloth (18) is fixedly mounted on the inner bottom end surface of the storage frame (17) by screws, and the top of the elastic protective cloth (18) is fixedly mounted on the cover plate (3) by screws. ), a first processing frame (19) and a second processing frame (32) are welded and fixed on the cover plate (3), a detection device (35) is installed and fixed on the top surface of the cover plate (3), a detection air chamber (36) is arranged in the detection device (35), a circuit board (37) is installed in the detection air chamber (36), a gas sensor (38) is installed on the circuit board (37), and a second exhaust pipe (39) and a pressure relief valve (40) are connected to the side end of the detection device (35).

2. The device for detecting and identifying harmful substances in edible vegetable oil according to claim 1, characterized in that: The automatic switching assembly (4) comprises a first servo motor (401), the first servo motor (401) is welded and fixed on the top surface of the cover plate (3), a first rotating disk (402) and a rotating rod (403) are welded and fixed on the output shaft of the first servo motor (401), a first shifting rod (404) is welded and fixed on the end of the rotating rod (403), a rotating cylinder (405) is rotatably connected to the bottom surface of the cover plate (3), a second rotating disk (406) and a second shifting rod (407) are welded and fixed on the rotating cylinder (405), a limiting rod (408) is slidably connected inside the rotating cylinder (405), and the bottom end of the limiting rod (408) is welded and fixed on the top surface of the sealing plate (7).

3. The device for detecting and identifying harmful substances in edible vegetable oil according to claim 2, characterized in that: The side end surface of the first rotating disk (402) is in contact with the side end surface of the second rotating disk (406); the side end surface of the second rotating disk (406) is in an arc shape; a groove is provided on the first rotating disk (402); the length of the groove on the first rotating disk (402) is greater than the length of the second rotating disk (406); four second shifting rods (407) are provided; the four second shifting rods (407) are distributed on the rotating cylinder (405) at equal angles; the vertical center line of the rotating cylinder (405), the vertical center line of the cover plate (3) and the vertical center line of the device housing (1) are located on the same vertical line; the cross section of the limiting rod (408) is rectangular; the diameter of the cover plate (3) is greater than the diameter of the device housing (1); the top end surface of the device housing (1) is in contact with the bottom end surface of the cover plate (3).

4. The device for detecting and identifying harmful substances in edible vegetable oil according to claim 1, characterized in that: The integrated processing assembly (5) comprises a second servo motor (501), a first liquid guide tube (504) and a first air guide tube (517); a pulley (502) is welded and fixed to the output shaft of the second servo motor (501), the first liquid guide tube (504) and the first air guide tube (517); a synchronous toothed belt (503) is connected to the pulley (502); the first liquid guide tube (504) is rotatably connected to the cover plate (3); the top end of the first air guide tube (517) is connected to the bottom bearing of the second processing frame (32); the first liquid guide tube (504) and the first air guide tube (517) are both provided with a first through hole (505); the first liquid guide tube (504) is provided with a second through hole (506); the first liquid guide tube (504) is fixedly connected to a first flexible brush (507) and a first connecting plate (508) and a first gear (512), a first connecting frame (510) is welded and fixed to the side end of the first connecting plate (508), the first connecting frame (510) is welded and fixed to the bottom end surface of the cover plate (3), the first liquid guide tube (504) is bearing-connected with a first connecting frame (511), the first gear (512) is meshingly connected with a second gear (513), a second liquid guide tube (514) is welded and fixed to the second gear (513), the second liquid guide tube (514) is bearing-connected to the first connecting frame (510), the top end of the second liquid guide tube (514) is rotatably connected to the bottom of the first connecting frame (511) through a bearing, the second liquid guide tube (514) is provided with a third through hole (515), and the second liquid guide tube (514) is fixedly connected with a second flexible brush (516).

5. The device for detecting and identifying harmful substances in edible vegetable oil according to claim 4, characterized in that: The second through holes (506) are provided in four groups, the four groups of second through holes (506) are distributed at equal angles on the first liquid conduit (504), each group of second through holes (506) is distributed at equal distances on the first liquid conduit (504), the second through holes (506) and the first flexible brushes (507) are distributed alternately, the third through holes (515) are provided in four groups, the four groups of third through holes (515) are distributed at equal angles on the second liquid conduit (514), each group of third through holes (515) is distributed at equal distances on the second liquid conduit (514), the third through holes (515) and the second flexible brushes (516) are distributed alternately, the first connecting frame (510) is symmetrically distributed on both sides of the first connecting plate (508), the first connecting frame (510) corresponds to the second gear (513) one by one through the second liquid conduit (514), and the length of the second liquid conduit (514) is greater than the length of the first air inlet pipe (10).

6. The device for detecting and identifying harmful substances in edible vegetable oil according to claim 4, characterized in that: The first air guide tube (517) is provided with a first air hole (518); a second connecting plate (519) is welded and fixed to the first air guide tube (517); a second connecting frame (520) is welded and fixed to the side end of the second connecting plate (519); the top end of the second connecting frame (520) is fixed to the bottom end surface of the cover plate (3); the first air guide tube (517) is rotatably connected to the second connecting frame (521) via a bearing; a third gear (522) is welded and fixed to the first air guide tube (517); a fourth gear (523) is meshed and connected to the third gear (522); a second air guide tube (524) is welded and fixed to the fourth gear (523); a second air hole (525) is provided on the second air guide tube (524); the second air guide tube (524) is bearing-connected to the second connecting frame (520); the top end of the second air guide tube (524) is rotatably connected to the bottom of the second connecting frame (521) via a bearing.

7. The device for detecting and identifying harmful substances in edible vegetable oil according to claim 6, characterized in that: The second connecting frames (520) are symmetrically distributed on both sides of the second connecting plate (519); the second connecting frames (520) correspond to the fourth gear (523) one by one through the second air guide pipe (524); an oil inlet pipe (526) and a fixing rod (528) are welded and fixed to the cover plate (3); a third connecting plate (527) is welded and fixed to the oil inlet pipe (526); a fourth connecting plate (529) is welded and fixed to the bottom end of the fixing rod (528); the bottom end surface of the first connecting plate (508) and the bottom end surface of the second connecting plate (519) are A sealing gasket (509) is fixedly connected to the bottom end surface of the third connecting plate (527) and the bottom end surface of the fourth connecting plate (529); the first connecting plate (508), the second connecting plate (519), the third connecting plate (527) and the fourth connecting plate (529) are of the same shape and size; the bottom end surface of the first connecting plate (508), the bottom end surface of the second connecting plate (519), the bottom end surface of the third connecting plate (527) and the bottom end surface of the fourth connecting plate (529) are flush; and the side end surface of the sealing gasket (509) is in contact with the inner wall of the through groove (9).

8. The device for detecting and identifying harmful substances in edible vegetable oil according to claim 1, characterized in that: Four detection barrels (8) are provided, and the four detection barrels (8) are distributed at equal angles on the top surface of the sealing plate (7). The detection barrels (8) correspond to the first liquid discharge pipe (13) one by one. The first liquid discharge pipe (13), the second liquid discharge pipe (14) and the water inlet pipe (15) are all equipped with electromagnetic valves. The top of the first processing frame (19) is connected to the second air inlet pipe (20), and the bottom of the first processing frame (19) is connected to the third air inlet pipe (21). The diameter of the third air inlet pipe (21) is equal to the diameter of the first air inlet pipe (10), and the diameter of the first exhaust pipe (11) is equal to the diameter of the second exhaust pipe (39).

9. The device for detecting and identifying harmful substances in edible vegetable oil according to claim 1, characterized in that: The side ends of the first processing frame (19) and the second processing frame (32) are both welded and fixed with a mounting frame (22); the side ends of the mounting frame (22) are magnetically adsorbed and connected with a magnetic plate (23); a rubber plate (24) is fixedly connected to the magnetic plate (23); the rubber plate (24) is fitted with the inner wall of the mounting frame (22); a positioning groove (25) is provided in the rubber plate (24); the side ends of the filter frame (27) and the side ends of the activated carbon screen plate (28) are both fixedly connected with a positioning block (26); the positioning block (26) is slidably connected in the positioning groove (25); a clamping groove (29) is provided in the positioning block (26); a reset spring (30) is fixedly connected to the rubber plate (24); a clamping rod (31) is welded and fixed to the other end of the reset spring (30); the clamping rod (31) is slidably connected to the rubber plate ( 24), the end of the clamping rod (31) is clamped and connected in the clamping groove (29), the top of the second processing frame (32) is connected to the third gas supply pipe (33), the second processing frame (32) is fixed with a second electric heating tube (34), the filter frame (27) is fitted with the activated carbon mesh plate (28), the side end surface of the filter frame (27) and the side end surface of the activated carbon mesh plate (28) are both fitted with the inner wall of the first processing frame (19), the shape and size of the first processing frame (19) are the same as the shape and size of the second processing frame (32), the length of the filter frame (27) is equal to the length of the rubber plate (24), the positioning block (26) is fixed to the middle part of the side end of the filter frame (27) and the middle part of the side end of the activated carbon mesh plate (28), and the second electric heating tube (34) is equidistantly distributed in the second processing frame (32).

10. A method for detecting harmful substances in edible vegetable oil, using the device for detecting and identifying harmful substances in edible vegetable oil as claimed in claim 1, characterized in that: The following steps are involved: S1: using the cooperation of the automatic switching component (4) and the integrated processing component (5), the cleaning, drying and loading of the detection barrel (8) are automatically completed, and the detection barrel (8) is moved to the detection position; S2: using a first electric heating tube (16) to heat the water in the device housing (1) at a constant temperature, thereby achieving constant temperature water bath heating of the detection barrel (8); S3: inert gas is uniformly delivered into the detection barrel (8) through the second air inlet pipe (20) to help the edible vegetable oil volatilize, and the volatilized gas enters the detection device (35) through the first exhaust pipe (11) and the second exhaust pipe (39); S4: The various gas sensors (38) in the detection device (35) can be used to detect and identify the various components and corresponding contents contained in the edible vegetable oil, thereby completing the identification and detection of the components and corresponding contents of various harmful substances contained in the edible vegetable oil.

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