Food safety detection mechanism and method

Abstract

The invention discloses a food safety detection mechanism and method, and relates to the field of food safety detection.The food safety detection mechanism comprises a base, a supporting column is fixedly installed at the upper end of the base, a fixing plate is fixedly installed at the upper end of the supporting column, and meanwhile arc-shaped plates are symmetrically and rotationally installed on the outer surface of the supporting column; a detection pipe is clamped between the two arc-shaped plates; according to the food safety detection mechanism and method, when the positioning block is stressed to rotate, the scraping plate fixedly mounted at the end of the positioning block is synchronously driven to rotate, so that the angle of the scraping plate is adjusted, impurities at the included angle of the detection pipe can be cleaned by the scraping plate, and the accuracy of subsequent detection is ensured.

Description

Technical Field

[0001] The present invention relates to food safety detection technology, and in particular to a food safety detection mechanism and method. Background Art

[0002] Food inspection in a broad sense refers to a discipline that studies and evaluates food quality and its changes. It is based on some basic theories and various technologies of physics, chemistry and biochemistry, and in accordance with established technical standards, such as international and national food hygiene / safety standards, to inspect the quality of food raw materials, auxiliary materials, semi-finished products, finished products and by-products to ensure that the product quality is qualified. Food inspection has a wide range of contents, including analysis of food nutritional components, analysis of pollutants in food, analysis of food auxiliary materials and food additives, food sensory identification, etc.

[0003] A Chinese invention patent with publication number CN115808399A discloses a food safety detection mechanism. The inventors of the food safety detection mechanism innovatively adopt a rotary cavity structure layout, which is more compact and more integrated. Since multiple detection cavities share a light source and a receiver, the detection accuracy is higher and the consistency is better, avoiding the influence of errors between different light sources on the detection accuracy and consistency. The light source in each cavity is unobstructed, unobstructed, and the optical path is short, which can better enable the emitted light source to be received. At the same time, the detection mechanism of the present invention also has the advantages of small size, light weight, and convenient installation and operation.

[0004] When using existing equipment, food is usually placed in a solution reagent, stirred, and then added to a test tube in a certain amount, and placed in an atomic spectrum detection instrument for detection. However, after the reagent is added to the sample, a solid product is formed, which makes it difficult to clean the solid product attached to the inner wall of the test tube after the test, resulting in cumbersome subsequent cleaning. Therefore, a food safety detection mechanism and method have been developed. Summary of the invention

[0005] The purpose of the present invention is to provide a food safety detection mechanism and method to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a food safety detection mechanism, comprising a base, a support column is fixedly installed on the upper end of the base, a fixing plate is fixedly installed on the upper end of the support column, and an arc plate is symmetrically rotated and installed on the outer surface of the support column, and a detection tube is clamped between the two arc plates; A cleaning component, which is assembled at the lower end of the fixing plate, and is used to clean the impurities remaining inside the detection tube; A scraping assembly, which is assembled at the lower end of the cleaning assembly, and is used to scrape off the solidified residue at the bottom of the detection tube; Wherein, the cleaning assembly comprises a positioning plate fixedly connected to the fixing plate, a protective plate is fixedly installed on the lower end of the positioning plate, and a driving member is fixedly installed on the upper end of the protective plate, a rotating block is fixedly installed on the output end of the driving member, and the upper end of the rotating block is rotatably connected to the lower end of the protective plate; A plurality of fixed blocks are evenly fixedly installed on the outer surface of the rotating block, and a swing rod is rotatably installed at the end of the fixed block. At the same time, a cleaning plate is fixedly installed at the end of the swing rod, and impurities attached to the inner wall of the detection tube are cleaned by the cleaning plate.

[0007] A fixed shaft is rotatably mounted on the inner wall of the rotating block, and a fixed gear is fixedly mounted on the outer surface of the fixed shaft. The lower end of the fixed shaft penetrates and extends to the lower end of the rotating block, and a docking block is fixedly mounted on the lower end of the rotating block.

[0008] The inner wall of the rotating block is evenly rotated and installed with multiple sets of transmission gears, and the outer surfaces of the multiple sets of transmission gears are meshed with the outer surface of the fixed gear. At the same time, a rotating shaft is fixedly installed at the end of the transmission gear, and the end of the rotating shaft passes through the rotating block and the fixed block in sequence and extends to the outside of the fixed block.

[0009] A turntable is fixedly mounted on the end of the rotating shaft, and a driving shaft is slidably mounted on the end of the turntable near the edge, while a round rod is slidably mounted on the inner wall of one end of the driving shaft away from the turntable.

[0010] Swing blocks are fixedly mounted on both ends of the round rod, and the ends of the swing blocks are fixedly connected to the outer surface of the swing rod.

[0011] The scraping assembly comprises a fixed cylinder clamped with the rotating block, a clamping block is fixedly mounted on the upper end of the fixed cylinder, and the inner wall of the upper end of the clamping block is in contact with the outer surface of the lower end of the docking block.

[0012] A power part is fixedly installed on the inner wall of the fixed cylinder, a power shaft is fixedly installed on the output end of the power part, a connecting block is rotatably installed on the end of the power shaft, a plurality of groups of moving rods are fixedly installed on the end of the connecting block, and the plurality of groups of moving rods are evenly distributed on the outer surface of the connecting block.

[0013] The end of the movable rod is fixedly mounted with a movable rod rotatably mounted, the end of the movable rod is rotatably mounted with a positioning block, one end of the positioning block is rotatably mounted with a limiting shaft, and the end of the limiting shaft is fixedly connected to the outer surface of the power component.

[0014] A scraper is fixedly mounted on one end of the positioning block away from the limiting shaft, and the end of the scraper penetrates and extends to the outside of the fixing cylinder.

[0015] A food safety detection method, comprising using a detection mechanism as described in any one of the above, the detection method comprising the following steps: S1. Place the test tube to be cleaned between two curved plates; S2. When the rotating block rotates, the fixed block fixedly installed on its outer surface drives the swing rod to move, thereby driving the cleaning plate fixedly installed on the end of the swing rod to clean the inner wall of the detection tube, wherein the outer surface of the cleaning plate is provided with a rubber block, and the friction between the cleaning plate and the detection tube is increased by the rubber block, so as to remove impurities on the inner wall of the detection tube; S3. When the positioning block is rotated under force, the scraper fixedly installed at its end is simultaneously driven to rotate, thereby adjusting the angle of the scraper, so that the scraper can clean the impurities at the angle of the detection tube.

[0016] Compared with the prior art, the food safety detection mechanism and method provided by the present invention have the following beneficial effects: when the driving shaft rotates, it drives the round rod slidably installed on its inner wall to move, and drives the swing blocks fixedly installed at both ends of the round rod to move. Since the ends of the swing blocks are fixedly connected to the outer surface of the swing rod, when the turntable rotates, it cooperates with the driving shaft to drive the round rod and the swing block to swing back and forth around the swing rod, thereby driving the cleaning plate to clean the inner wall of the detection tube.

[0017] When the positioning block is rotated under force, the scraper fixed at its end is simultaneously driven to rotate, thereby adjusting the angle of the scraper so that the scraper can clean the impurities at the angle of the detection tube to ensure the accuracy of subsequent detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a detection tube provided in an embodiment of the present invention; Figure 3 A cross-sectional view of the internal structure of a detection tube provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a cleaning component provided in an embodiment of the present invention; Figure 5 A first cross-sectional view of the internal structure of a cleaning assembly provided by an embodiment of the present invention; Figure 6 A second cross-sectional view of the internal structure of the cleaning component provided by an embodiment of the present invention; Figure 7 A schematic diagram of the structure of a scraping assembly provided in an embodiment of the present invention; Figure 8 A first cross-sectional view of the internal structure of a scraping assembly provided by an embodiment of the present invention; Fig. 9 A second cross-sectional view of the internal structure of the scraping assembly provided in an embodiment of the present invention.

[0020] Description of reference numerals: 1. Base; 2. Cleaning component; 3. Scraping component; 11. Support column; 12. Arc plate; 13. Fixed plate; 14. Detection tube; 21. Positioning plate; 22. Protective plate; 23. Driving member; 24. Rotating block; 241. Docking block; 25. Fixed shaft; 251. Fixed gear; 26. Transmission gear; 261. Rotating shaft; 262. Turntable; 263. Driving shaft; 27. Fixed block; 28. Round rod; 281. Swing block; 282. Swing rod; 29. ​​Cleaning plate; 31. Fixed cylinder; 32. Clamping block; 33. Power member; 34. Power shaft; 35. Connecting block; 36. Moving rod; 37. Movable rod; 38. Positioning block; 381. Limiting shaft; 39. Scraper. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in 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.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example: See Figure 1-Figure 9 A food safety detection mechanism includes a base 1, a support column 11 is fixedly installed on the upper end of the base 1, a fixed plate 13 is fixedly installed on the upper end of the support column 11, and an arc plate 12 is symmetrically rotated and installed on the outer surface of the support column 11, and a detection tube 14 is clamped between the two arc plates 12.

[0024] In this solution, an electric telescopic rod is provided inside the support column 11, which drives the fixed plate 13 to move up and down until it reaches the optimal position and stops. At the same time, a torsion spring is provided at the connection between the arc plate 12 and the outer surface of the support column 11. The torsion spring cooperates with the arc plate 12 to tightly fit the outer surface of the detection tube 14 to ensure the stability of the detection tube 14.

[0025] Furthermore, a cleaning component 2 is assembled at the lower end of the fixed plate 13, and impurities remaining inside the detection tube 14 are cleaned by the cleaning component 2; wherein, the cleaning component 2 includes a positioning plate 21 fixedly connected to the fixed plate 13, a protective plate 22 is fixedly installed at the lower end of the positioning plate 21, and a driving member 23 is fixedly installed at the upper end of the protective plate 22, a rotating block 24 is fixedly installed at the output end of the driving member 23, and the upper end of the rotating block 24 is rotatably connected to the lower end of the protective plate 22.

[0026] In this embodiment, the driving member 23 is an existing servo motor and is connected to an external control device. When the driving member 23 is started, it synchronously drives the rotating block 24 arranged at its output end to rotate. A protrusion is arranged at the end of the rotating block 24, and an annular groove is opened at the lower end of the protective plate 22. The outer surface of the protrusion is slidably connected with the inner wall of the annular groove, thereby ensuring that the rotating block 24 remains stable during rotation.

[0027] Furthermore, a plurality of fixed blocks 27 are evenly fixedly installed on the outer surface of the rotating block 24, and a swing rod 282 is rotatably installed at the end of the fixed block 27. At the same time, a cleaning plate 29 is fixedly installed at the end of the swing rod 282, and impurities attached to the inner wall of the detection tube 14 are cleaned by the cleaning plate 29.

[0028] Specifically, when the rotating block 24 rotates, the fixed block 27 fixedly installed on its outer surface drives the swing rod 282 to move, thereby driving the cleaning plate 29 fixedly installed on the end of the swing rod 282 to clean the inner wall of the detection tube 14, wherein the outer surface of the cleaning plate 29 is provided with a rubber block, and the friction with the detection tube 14 is increased by the rubber block, thereby removing impurities on the inner wall of the detection tube 14.

[0029] A through hole is formed at the end of the fixing block 27 , and the inner wall of the through hole is rotatably connected to the outer surface of the swing rod 282 , so that the swing rod 282 is limited by the fixing block 27 .

[0030] Furthermore, a fixed shaft 25 is rotatably mounted on the inner wall of the rotating block 24 , and a fixed gear 251 is fixedly mounted on the outer surface of the fixed shaft 25 , the lower end of the fixed shaft 25 passes through and extends to the lower end of the rotating block 24 , and a docking block 241 is fixedly mounted on the lower end of the rotating block 24 .

[0031] Specifically, an extension block is provided on the outer surface of the fixed shaft 25 and on one side of the fixed gear 251. At the same time, an arc groove is opened at the end of the rotating block 24. The inner wall of the arc groove is slidingly connected to the outer surface of the extension block, and the end of the extension block is fixedly connected to the end of the protective plate 22, so that when the rotating block 24 rotates, the fixed gear 251 remains stable.

[0032] Furthermore, multiple sets of transmission gears 26 are evenly rotated and installed on the inner wall of the rotating block 24, and the outer surfaces of the multiple sets of transmission gears 26 are all meshed with the outer surface of the fixed gear 251. At the same time, a rotating shaft 261 is fixedly installed on the end of the transmission gear 26, and the end of the rotating shaft 261 passes through and extends to the outside of the fixed block 27 in sequence.

[0033] Specifically, when the rotating block 24 rotates, the transmission gear 26 installed on its outer surface is synchronously driven to rotate. Since the outer surface of the transmission gear 26 is meshed with the outer surface of the fixed gear 251, when the transmission gear 26 rotates with the rotating block 24, it is synchronously driven to rotate.

[0034] When the transmission gear 26 rotates, it drives the rotating shaft 261 fixedly installed at its end to rotate, wherein a positioning cylinder is provided in the middle position of the fixed block 27, and the inner wall of the positioning cylinder is rotatably connected to the outer surface of the rotating shaft 261, thereby ensuring the stability of the rotating shaft 261.

[0035] Furthermore, a rotating disk 262 is fixedly mounted on the end of the rotating shaft 261, and a driving shaft 263 is slidably mounted on the end of the rotating disk 262 and near the edge thereof, and a round rod 28 is slidably mounted on the inner wall of the driving shaft 263 away from one end of the rotating disk 262. Swing blocks 281 are fixedly mounted on both ends of the round rod 28, and the ends of the swing blocks 281 are fixedly connected to the outer surface of the swing rod 282.

[0036] Specifically, when the rotating shaft 261 rotates, the rotating disk 262 fixedly installed at its end is synchronously driven to rotate. Since the driving shaft 263 is slidably installed at the end of the rotating disk 262, the driving shaft 263 rotates around the rotating disk 262 when the rotating disk 262 rotates.

[0037] At the same time, when the driving shaft 263 rotates, it drives the round rod 28 slidably installed on its inner wall to move, and drives the swing blocks 281 fixedly installed at both ends of the round rod 28 to move. Since the ends of the swing blocks 281 are fixedly connected to the outer surface of the swing rod 282, when the turntable 262 rotates, it cooperates with the driving shaft 263 to drive the round rod 28 and the swing block 281 to swing back and forth around the swing rod 282, thereby driving the cleaning plate 29 to clean the inner wall of the detection tube 14.

[0038] Furthermore, a scraping assembly 3 is assembled at the lower end of the cleaning assembly 2, and the solidified residues at the bottom of the detection tube 14 are scraped off by the scraping assembly 3; the scraping assembly 3 includes a fixed cylinder 31 clamped with the rotating block 24, and a clamping block 32 is fixedly installed on the upper end of the fixed cylinder 31, and the inner wall of the upper end of the clamping block 32 is in contact with the outer surface of the lower end of the docking block 241.

[0039] In this embodiment, the clamping block 32 is docked with the docking block 241, so that when the rotating block 24 rotates, the fixed cylinder 31 is synchronously driven to rotate. At the same time, a clamp or other fixing component is provided at the upper end of the fixed cylinder 31 to ensure the stability of the clamping block 32 and the docking block 241.

[0040] An arc block is disposed at the lower end of the fixed cylinder 31 , so that when the fixed cylinder 31 rotates, impurities at the bottom of the detection tube 14 can be cleared.

[0041] Furthermore, a power member 33 is fixedly installed on the inner wall of the fixed cylinder 31, a power shaft 34 is fixedly installed on the output end of the power member 33, a connecting block 35 is rotatably installed on the end of the power shaft 34, and a plurality of groups of moving rods 36 are fixedly installed on the end of the connecting block 35, and the plurality of groups of moving rods 36 are evenly distributed on the outer surface of the connecting block 35.

[0042] Specifically, the power member 33 is an electric telescopic rod and is connected to an external control device. When the power member 33 is started, it cooperates with the power shaft 34 to drive the connecting block 35 to move up and down. Since the moving rod 36 is fixedly installed on the outer surface of the connecting block 35, the connecting block 35 can synchronously drive the moving rod 36 to move up and down when it moves.

[0043] Furthermore, a movable rod 37 is fixedly installed on the end of the movable rod 36 and a positioning block 38 is rotatably installed on the end of the movable rod 37. A limiting shaft 381 is rotatably installed on one end of the positioning block 38, and the end of the limiting shaft 381 is fixedly connected to the outer surface of the power component 33.

[0044] Specifically, when the moving rod 36 moves downward, it is acted upon by the movable rod 37, driving the connecting block 35 on the moving rod 36 to rotate around the outer surface of the power shaft 34, thereby causing the end of the positioning block 38 to be misaligned with the end of the moving rod 36, and when the moving rod 36 moves, the movable rod 37 is tilted as a whole, thereby driving the positioning block 38 to rotate around the limit axis 381.

[0045] Furthermore, a scraper 39 is fixedly mounted on one end of the positioning block 38 away from the limiting shaft 381 , and an end of the scraper 39 penetrates and extends to the outside of the fixing tube 31 .

[0046] Specifically, when the positioning block 38 is rotated under force, the scraper 39 fixedly installed at its end is synchronously driven to rotate, thereby adjusting the angle of the scraper 39 so that the scraper 39 can clean the impurities at the angle of the detection tube 14 to ensure the accuracy of subsequent detection.

[0047] The control device can select a single-chip microcomputer as the control end. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller (Microcontroller Unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but it has a small storage capacity, a simple input and output interface, and low functional consumption.

[0048] Embodiment 2: A food safety detection method, comprising using any of the detection mechanisms shown above, the detection method comprising the following steps: S1, placing the detection tube 14 to be cleaned between two arc-shaped plates 12; S2. When the rotating block 24 rotates, the fixed block 27 fixedly installed on its outer surface drives the swing rod 282 to move, thereby driving the cleaning plate 29 fixedly installed on the end of the swing rod 282 to clean the inner wall of the detection tube 14, wherein the outer surface of the cleaning plate 29 is provided with a rubber block, and the friction between the cleaning plate 29 and the detection tube 14 is increased by the rubber block, so that the impurities on the inner wall of the detection tube 14 are removed; S3. When the positioning block 38 is rotated by force, the scraper 39 fixedly installed at its end is synchronously driven to rotate, so that the angle of the scraper 39 is adjusted, so that the scraper 39 can clean the impurities at the angle of the detection tube 14.

[0049] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A food safety testing mechanism, characterized in that: It comprises a base (1), a support column (11) is fixedly mounted on the upper end of the base (1), a fixing plate (13) is fixedly mounted on the upper end of the support column (11), and an arc-shaped plate (12) is symmetrically mounted on the outer surface of the support column (11), and a detection tube (14) is clamped between the two arc-shaped plates (12); a cleaning component (2) mounted on the lower end of the fixing plate (13), and used to clean impurities remaining inside the detection tube (14); A scraping component (3) is assembled at the lower end of the cleaning component (2), and the solidified residue at the bottom of the detection tube (14) is scraped off by the scraping component (3); The cleaning assembly (2) comprises a positioning plate (21) fixedly connected to the fixing plate (13); a protective plate (22) is fixedly mounted on the lower end of the positioning plate (21); a driving member (23) is fixedly mounted on the upper end of the protective plate (22); a rotating block (24) is fixedly mounted on the output end of the driving member (23); and the upper end of the rotating block (24) is rotatably connected to the lower end of the protective plate (22); A plurality of fixed blocks (27) are evenly fixedly mounted on the outer surface of the rotating block (24), and a swing rod (282) is rotatably mounted on the end of the fixed block (27). A cleaning plate (29) is fixedly mounted on the end of the swing rod (282), and impurities adhering to the inner wall of the detection tube (14) are cleaned by the cleaning plate (29).

2. A food safety testing mechanism according to claim 1, characterized in that: A fixed shaft (25) is rotatably mounted on the inner wall of the rotating block (24), and a fixed gear (251) is fixedly mounted on the outer surface of the fixed shaft (25); the lower end of the fixed shaft (25) penetrates and extends to the lower end of the rotating block (24), and a docking block (241) is fixedly mounted on the lower end of the rotating block (24).

3. A food safety testing mechanism according to claim 2, characterized in that: The inner wall of the rotating block (24) is evenly rotatably mounted with a plurality of transmission gears (26), and the outer surfaces of the plurality of transmission gears (26) are all meshed with the outer surface of the fixed gear (251). At the same time, a rotating shaft (261) is fixedly mounted at the end of the transmission gear (26), and the end of the rotating shaft (261) sequentially penetrates the rotating block (24) and the fixed block (27) and extends to the outside of the fixed block (27).

4. A food safety testing mechanism according to claim 3, characterized in that: A rotating disk (262) is fixedly mounted on the end of the rotating shaft (261), and a driving shaft (263) is slidably mounted on the end of the rotating disk (262) and close to the edge thereof, while a round rod (28) is slidably mounted on the inner wall of one end of the driving shaft (263) away from the rotating disk (262).

5. A food safety testing mechanism according to claim 4, characterized in that: Swing blocks (281) are fixedly mounted on both ends of the round rod (28), and the ends of the swing blocks (281) are fixedly connected to the outer surface of the swing rod (282).

6. A food safety testing mechanism according to claim 1, characterized in that: The scraping assembly (3) comprises a fixed cylinder (31) that is clamped to the rotating block (24); a clamping block (32) is fixedly mounted on the upper end of the fixed cylinder (31); and an inner wall of the upper end of the clamping block (32) is in contact with an outer surface of the lower end of the docking block (241).

7. A food safety testing mechanism according to claim 6, characterized in that: A power member (33) is fixedly mounted on the inner wall of the fixed cylinder (31); a power shaft (34) is fixedly mounted on the output end of the power member (33); a connecting block (35) is rotatably mounted on the end of the power shaft (34); a plurality of groups of moving rods (36) are fixedly mounted on the end of the connecting block (35); and the plurality of groups of moving rods (36) are evenly distributed on the outer surface of the connecting block (35).

8. A food safety testing mechanism according to claim 7, characterized in that: A movable rod (37) is fixedly mounted on the end of the movable rod (36) and rotatably mounted thereon. A positioning block (38) is rotatably mounted on the end of the movable rod (37). A limiting shaft (381) is rotatably mounted on one end of the positioning block (38), and an end of the limiting shaft (381) is fixedly connected to the outer surface of the power member (33).

9. A food safety testing mechanism according to claim 8, characterized in that: A scraper (39) is fixedly mounted on one end of the positioning block (38) away from the limiting shaft (381), and an end of the scraper (39) penetrates and extends to the outside of the fixed cylinder (31).

10. A food safety detection method, characterized in that: The detection method comprises the following steps: S1, placing the detection tube (14) to be cleaned between two curved plates (12); S2. When the rotating block (24) rotates, the fixed block (27) fixedly mounted on the outer surface of the rotating block (24) drives the swing rod (282) to move, thereby driving the cleaning plate (29) fixedly mounted on the end of the swing rod (282) to clean the inner wall of the detection tube (14), wherein a rubber block is provided on the outer surface of the cleaning plate (29), and the friction between the cleaning plate (29) and the detection tube (14) is increased by the rubber block, thereby removing impurities on the inner wall of the detection tube (14); S3. When the positioning block (38) is rotated under force, the scraper (39) fixedly mounted at its end is synchronously driven to rotate, thereby adjusting the angle of the scraper (39) so that the scraper (39) can clean the impurities at the angle of the detection tube (14).

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