Food toxic and harmful substance residue detection device and use method thereof

Abstract

The invention relates to the technical field of food detection, and discloses a food toxic and harmful substance residue detection device and a use method thereof.The food toxic and harmful substance residue detection device comprises a mounting plate, a mounting groove is formed in the side wall of the mounting plate, and a detection instrument is fixedly connected to the inner wall of the mounting groove; the first rolling wheel rotates on the ground, the rotating first rolling wheel drives the winding column to rotate through the second gear, the winding column drives the other winding column to rotate in the same direction through the first conveying belt, and the two rotating winding columns force the transparent plastic belt to slide along the outer wall of the mounting plate. The mounting plate and the rolling rod also perform a sliding leveling procedure on the bottom of the sample, so that sediment at the bottom in the sample reaches the top of the transparent plastic tape, the integrity of the sample is ensured, meanwhile, substances precipitated at the bottom of the sample directly contact with the top of the transparent plastic tape, and the liquid at the top is prevented from being mixed with the sediment at the bottom; and a large error of the data is caused.

Description

Technical Field

[0001] The present invention relates to the technical field of food detection equipment, in particular to a device for detecting toxic and harmful substance residues in food and a method for using the device. Background Art

[0002] In a narrow sense, food testing mainly refers to food safety testing, which uses physical and chemical indicators as reference. It mainly tests whether the harmful substances in food exceed the standard, such as edible oil acid value, peroxide value, sulfur dioxide (bird's nest and wolfberry), aflatoxin (tea), E. coli, etc.

[0003] Among them, after the food residue is spread out on a flat surface, the staff needs to extract samples through a straw. Most of the residues of toxic and harmful substances are mixed with liquid and precipitated at the bottom of the residual food. At this time, they are extracted through a straw and then placed inside the testing instrument to complete the test. In the extraction process, the liquid with less residue on the top will mix with the sediment at the bottom, and the liquid on the top will dilute the toxic substances at the bottom, which will cause the sample to be inaccurate. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a food toxic and harmful substance residue detection device, comprising a mounting plate, a mounting groove is provided at the side wall of the mounting plate, a detection instrument is fixedly connected to the inner wall of the mounting groove, a glass sheet 2 is fixedly connected to the inner wall of the mounting groove, and a material blocking assembly is fixedly connected to the top of the mounting plate;

[0005] The lighting mechanism comprises a fixing frame fixedly connected to the top of the mounting plate, a light source board fixedly connected to the bottom of the fixing frame, an L-shaped rod slidably connected to the inner wall of the fixing frame, a glass sheet 1 fixedly connected to the bottom of the L-shaped rod, and a spring 1 fixedly connected to one end of the L-shaped rod away from the glass sheet 1;

[0006] The collecting mechanism comprises a fixing plate fixedly connected to the side wall of the mounting plate, a rotating column rotatably connected to the side wall of the fixing plate, rollers 1 fixedly connected to both ends of the rotating column, gears 1 fixedly connected to the side wall of the rotating column, two winding columns rotatably connected to the inner wall of the fixing plate, a conveyor belt 1 is sleeved on the outer walls of the two winding columns, gears 2 are fixedly connected to the ends of the winding columns away from the conveyor belt 1, a rolling rod is rotatably connected to the side wall of the mounting plate, a transparent plastic belt is wound around the outer wall of the winding column, and a lighting mechanism and a collecting mechanism are arranged inside the device by utilizing the characteristics of precipitation of toxic and hazardous substances. Before use, a brand new glass sheet 1 is fixed to the bottom of the L-shaped rod, and then the device is placed on the side wall of the sample, and the rolling rod is directed toward the direction of the sample. While the staff presses the fixing frame, the device is pushed toward the direction of the sample. In this process, roller 1 will rotate on the ground, and the rotating roller 1 drives the winding column to rotate through gears 2, and the winding column drives another winding column to rotate in the same direction through the conveyor belt 1, and the two rotating winding columns will force the transparent plastic belt to slide along the outer wall of the mounting plate, such as Figure 1 When the equipment moves to the left, roller one drives the transparent plastic belt to move toward the lighting mechanism through gear two. During this process, after the transparent plastic belt contacts the sample, the sample will stick to the outer wall of the transparent plastic belt. During this process, the mounting plate and the rolling rod will also slide and flatten the bottom of the sample to ensure that the sediment at the bottom of the sample reaches the top of the transparent plastic belt.

[0007] Preferably, the material blocking assembly includes a protruding frame fixedly connected to the top of the mounting plate, the end of the protruding frame away from the mounting plate is rotatably connected to a rolling column, the outer wall of the rolling column is rotatably connected to the inner wall of the transparent plastic belt, the staff continues to push the equipment to move so that the sample reaches the bottom of the fixed frame, and then the staff presses the L-shaped rod again to make the glass sheet close to the top of the transparent plastic belt, and then the detection instrument starts to detect. Through the application of the above-mentioned components, while ensuring the integrity of the sample, the material precipitated at the bottom of the sample will directly contact the top of the transparent plastic belt to avoid mixing of the top liquid and the bottom sediment, causing large errors in the data.

[0008] Preferably, the material blocking assembly also includes a mounting bracket fixedly connected to the top of the fixed plate, the side wall of the mounting bracket is rotatably connected to roller two, the side wall of roller two is rotatably connected to the side wall of the transparent plastic belt, and the side wall of the protruding frame is fixedly connected to a cleaning assembly. By utilizing the characteristic of the above-mentioned winding column driving the transparent plastic belt to move, a material blocking assembly is arranged inside the equipment. When the transparent plastic belt drives the sample to move horizontally, the transparent plastic belt will slide along the outer wall of the protruding frame and the rolling column. At this time, affected by the inclination angle of the protruding frame, when the transparent plastic belt drives the sample to move, large particles will find it difficult to continue to follow the transparent plastic belt and fall on the Figure 5The transparent plastic belt that moves horizontally will drive part of the liquefied sample to continue moving and cross the rolling column to the other end. Through the application of the above components, large impurities in the sample can be removed to prevent large impurities from affecting the detection accuracy of the equipment.

[0009] Preferably, the cleaning assembly comprises a mounting support plate fixedly connected to the side wall of the protruding frame, a driving rod is rotatably connected to the inner wall of the mounting support plate, and a belt is sleeved on the outer wall of the driving rod.

[0010] Preferably, the cleaning component also includes a bidirectional threaded rod fixedly connected to the side wall of the driving rod, a sliding rod is fixedly connected to the inner wall of the mounting support plate, and an engaging plate is slidably connected to the outer wall of the sliding rod. By utilizing the characteristic that the transparent plastic belt drives the rolling column to rotate, a cleaning component is arranged inside the device. When the rolling column rotates, the rolling column drives the driving rod to rotate in the same direction through the belt, and the transparent plastic belt drives the liquid sample to contact the bidirectional threaded rod, such as Figure 6 The clockwise rotating bidirectional threaded rod will contact the liquid sample on the outer wall of the transparent plastic belt, and most of the liquid sample will adhere to the side wall of the bidirectional threaded rod, removing excess liquid in the liquefied sample.

[0011] Preferably, the cleaning assembly also includes a cleaning rack fixedly connected to the side wall of the meshing plate, a cleaning scraper is fixedly connected to the side wall of the meshing plate, the side wall of the meshing plate is meshed with the outer wall of the bidirectional threaded rod, and under the rolling of the bidirectional threaded rod, the thickness of the liquefied sample is ensured to be equal, and fine lines appear on the outer wall of the sample, thereby improving the tightness of the subsequent fit between the glass sheet and the transparent plastic tape.

[0012] Preferably, the end of the belt away from the driving rod is rotatably connected to the outer wall of the rolling column, the outer wall of the transparent plastic belt is rotatably connected to the outer wall of the rolling rod, the outer wall of gear 2 is meshingly connected to the outer wall of gear 1, and the end of spring 1 away from the L-shaped rod is fixedly connected to the top of the fixed frame. Utilizing the characteristics of the rotation of the above-mentioned two-way threaded rod, an engaging plate is provided inside the equipment. When the two-way threaded rod rotates, the engaging plate will be forced to move horizontally left and right along the outer wall of the sliding rod, and the laterally moving engaging plate will push the large impurities remaining on the top of the transparent plastic belt to the side through the cleaning frame to avoid the residue of large impurities on the top of the transparent plastic belt. In addition, in the process of the horizontal movement of the engaging plate, the engaging plate will drive the cleaning scraper to slide along the outer wall of the two-way threaded rod, and the cleaning scraper will scratch and clean the outer wall of the two-way threaded rod to avoid the residue of the outer wall of the two-way threaded rod, which affects the accuracy of subsequent detection.

[0013] A method for using a device for detecting toxic and harmful substance residues in food comprises the following steps:

[0014] S1: Assemble equipment;

[0015] S2: Pushing equipment;

[0016] S3: Press detection.

[0017] The present invention has the following beneficial effects:

[0018] (1) The present invention utilizes the characteristics of precipitation of toxic and hazardous substances. An illumination mechanism and a collection mechanism are arranged inside the device. Before use, a brand new glass sheet is fixed to the bottom of the L-shaped rod. Then the device is placed on the side wall of the sample and the rolling rod is directed toward the sample. The staff presses the fixing frame while pushing the device toward the sample. During this process, the roller 1 will rotate on the ground. The rotating roller 1 drives the winding column to rotate through the gear 2. The winding column drives another winding column to rotate in the same direction through the transmission belt 1. The two rotating winding columns will force the transparent plastic belt to slide along the outer wall of the mounting plate. Figure 1 When the equipment moves to the left, roller one drives the transparent plastic belt to move toward the lighting mechanism through gear two. During this process, after the transparent plastic belt contacts the sample, the sample will stick to the outer wall of the transparent plastic belt. During this process, the mounting plate and the rolling rod will also slide and flatten the bottom of the sample to ensure that the sediment at the bottom of the sample reaches the top of the transparent plastic belt. Then the staff continues to push the equipment to move the sample to the bottom of the fixed frame. Then, the staff presses the L-shaped rod to make the glass piece one close to the top of the transparent plastic belt. Then the testing instrument starts testing. Through the application of the above components, while ensuring the integrity of the sample, the material precipitated at the bottom of the sample will directly contact the top of the transparent plastic belt to avoid mixing of the top liquid and the bottom sediment, resulting in large errors in the data.

[0019] (2) The present invention utilizes the characteristic that the winding column drives the transparent plastic belt to move, and a material blocking component is arranged inside the device. When the transparent plastic belt drives the sample to move horizontally, the transparent plastic belt will slide along the outer wall of the protruding frame and the rolling column. At this time, due to the influence of the inclination angle of the protruding frame, when the transparent plastic belt drives the sample to move, large pieces of particles will find it difficult to continue to move with the transparent plastic belt and fall on the surface of the sample. Figure 5 The transparent plastic belt that moves horizontally will drive part of the liquefied sample to continue moving and cross the rolling column to the other end. Through the application of the above components, large impurities in the sample can be removed to prevent large impurities from affecting the detection accuracy of the equipment.

[0020] (3) The present invention utilizes the characteristic that the transparent plastic belt drives the rolling column to rotate, and a cleaning component is arranged inside the device. When the rolling column rotates, the rolling column drives the driving rod to rotate in the same direction through the belt, and the transparent plastic belt drives the liquid sample to contact the bidirectional threaded rod. Figure 6The clockwise rotating bidirectional threaded rod will contact the liquid sample on the outer wall of the transparent plastic tape, and most of the liquid sample will stick to the side wall of the bidirectional threaded rod, removing excess liquid in the liquefied sample; in addition, under the rolling of the bidirectional threaded rod, the thickness of the liquefied sample is guaranteed to be equal, and fine lines appear on the outer wall of the sample, thereby improving the tightness of the subsequent fit between the glass sheet and the transparent plastic tape.

[0021] (4) The present invention utilizes the characteristic of the rotation of the above-mentioned bidirectional threaded rod and is provided with an engaging plate inside the device. When the bidirectional threaded rod rotates, the engaging plate will be forced to move horizontally left and right along the outer wall of the sliding rod, and the laterally moving engaging plate will push the large impurities remaining on the top of the transparent plastic belt to the side through the cleaning frame, thereby avoiding the residue of large impurities on the top of the transparent plastic belt. In addition, during the transverse movement of the engaging plate, the engaging plate will drive the cleaning scraper to slide along the outer wall of the bidirectional threaded rod, and the cleaning scraper will scrape and clean the outer wall of the bidirectional threaded rod, thereby avoiding the residue on the outer wall of the bidirectional threaded rod, which affects the accuracy of subsequent detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 It is a cross-sectional schematic diagram of the lighting mechanism of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal components of the collection mechanism of the present invention;

[0027] Figure 5 It is a cross-sectional schematic diagram of the material blocking assembly of the present invention;

[0028] Figure 6 It is a cross-sectional schematic diagram of the cleaning component of the present invention;

[0029] Figure 7 This is a schematic diagram of the internal components of the cleaning component of the present invention;

[0030] Figure 8 For the present invention Figure 7 A is an enlarged schematic diagram;

[0031] Figure 9 It is a schematic diagram of the working process of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] In the figure: 1. mounting plate; 11. mounting groove; 12. testing instrument; 13. glass sheet 2; 2. lighting mechanism; 21. fixing frame; 22. light source board; 23. L-shaped rod; 24. glass sheet 1; 25. spring 1; 3. collecting mechanism; 31. fixing plate; 32. rotating column; 33. roller 1; 34. gear 1; 35. winding column; 36. transmission belt 1; 37. gear 2; 38. rolling rod; 39. transparent plastic belt; 4. material blocking assembly; 41. protruding frame; 42. mounting bracket; 43. roller 2; 44. rolling column; 5. cleaning assembly; 51. mounting support plate; 52. driving rod; 53. bidirectional threaded rod; 54. sliding rod; 55. engaging plate; 56. cleaning frame; 57. cleaning scraper; 58. belt. DETAILED DESCRIPTION

[0034] 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.

[0035] For example, see Figure 1 - Figure 4 The present invention is a food toxic and harmful substance residue detection device, comprising a mounting plate 1, a mounting groove 11 is provided at the side wall of the mounting plate 1, a detection instrument 12 is fixedly connected to the inner wall of the mounting groove 11, a glass sheet 13 is fixedly connected to the inner wall of the mounting groove 11, and a material blocking component 4 is fixedly connected to the top of the mounting plate 1;

[0036] The lighting mechanism 2 includes a fixing frame 21 fixedly connected to the top of the mounting plate 1, a light source board 22 fixedly connected to the bottom of the fixing frame 21, an L-shaped rod 23 slidably connected to the inner wall of the fixing frame 21, a glass sheet 24 fixedly connected to the bottom of the L-shaped rod 23, and a spring 25 fixedly connected to one end of the L-shaped rod 23 away from the glass sheet 24;

[0037] The collecting mechanism 3 includes a fixed plate 31 fixedly connected to the side wall of the mounting plate 1, a rotating column 32 is rotatably connected to the side wall of the fixed plate 31, rollers 33 are fixedly connected to both ends of the rotating column 32, a gear 34 is fixedly connected to the side wall of the rotating column 32, two winding columns 35 are rotatably connected to the inner wall of the fixed plate 31, a conveyor belt 36 is sleeved on the outer walls of the two winding columns 35, a gear 2 37 is fixedly connected to one end of the winding column 35 away from the conveyor belt 36, a rolling rod 38 is rotatably connected to the side wall of the mounting plate 1, and a transparent plastic belt 39 is wound around the outer wall of the winding column 35, and the characteristic of precipitation of toxic and harmful substances is utilized. Point, the device is provided with an illumination mechanism 2 and a collection mechanism 3. Before use, a brand new glass sheet 24 is fixed to the bottom of the L-shaped rod 23, and then the device is placed on the side wall of the sample, and the rolling rod 38 is directed toward the sample. The staff presses the fixing frame 21 while pushing the device toward the sample. During this process, the roller 33 will rotate on the ground, and the rotating roller 33 drives the winding column 35 to rotate through the gear 2 37. The winding column 35 drives another winding column 35 to rotate in the same direction through the transmission belt 1 36, and the two rotating winding columns 35 will force the transparent plastic belt 39 to slide along the outer wall of the mounting plate 1, as shown in FIG. Figure 1 When the device moves to the left, roller 1 33 drives the transparent plastic belt 39 to move toward the direction of the lighting mechanism 2 through gear 2 37. During this process, after the transparent plastic belt 39 contacts the sample, the sample will adhere to the outer wall of the transparent plastic belt 39. During this process, the mounting plate 1 and the rolling rod 38 will also slide and flatten the bottom of the sample to ensure that the sediment at the bottom of the sample reaches the top of the transparent plastic belt 39.

[0038] For example 2, please refer to Figure 5 - Figure 8 The present invention is a device for detecting the residues of toxic and harmful substances in food. On the basis of the first embodiment, the material blocking component 4 includes a protruding frame 41 fixedly connected to the top of the mounting plate 1, and the end of the protruding frame 41 away from the mounting plate 1 is rotatably connected to a rolling column 44, and the outer wall of the rolling column 44 is rotatably connected to the inner wall of the transparent plastic belt 39. The staff continues to push the equipment to move so that the sample reaches the bottom of the fixed frame 21, and then the staff presses the L-shaped rod 23 to make the glass sheet 24 close to the top of the transparent plastic belt 39, and then the detection instrument 12 starts to detect. Through the application of the above components, while ensuring the integrity of the sample, the material precipitated at the bottom of the sample will directly contact the top of the transparent plastic belt 39 to avoid the top liquid and the bottom sediment mixing, causing large errors in the data.

[0039] The material blocking component 4 also includes a mounting bracket 42 fixedly connected to the top of the fixed plate 31, and a roller 2 43 is rotatably connected to the side wall of the mounting bracket 42, and the side wall of the roller 2 43 is rotatably connected to the side wall of the transparent plastic belt 39. A cleaning component 5 is fixedly connected to the side wall of the protruding frame 41. By utilizing the characteristic that the winding column 35 drives the transparent plastic belt 39 to move, a material blocking component 4 is arranged inside the device. When the transparent plastic belt 39 drives the sample to move horizontally, the transparent plastic belt 39 will slide along the outer wall of the protruding frame 41 and the rolling column 44. At this time, affected by the inclination angle of the protruding frame 41, when the transparent plastic belt 39 drives the sample to move, large pieces of particles will find it difficult to continue to follow the transparent plastic belt 39 and fall on the Figure 5 The middle roller 43 is positioned, and the lateral transparent plastic belt 39 will drive part of the liquefied sample to continue moving and cross the rolling column 44 to reach the other end. Through the application of the above components, large impurities in the sample are removed to prevent large impurities from affecting the detection accuracy of the equipment.

[0040] The cleaning assembly 5 includes a mounting support plate 51 fixedly connected to the side wall of the protruding frame 41 , a driving rod 52 is rotatably connected to the inner wall of the mounting support plate 51 , and a belt 58 is sleeved on the outer wall of the driving rod 52 .

[0041] The cleaning assembly 5 also includes a bidirectional threaded rod 53 fixedly connected to the side wall of the driving rod 52, a sliding rod 54 fixedly connected to the inner wall of the mounting support plate 51, and an engaging plate 55 slidably connected to the outer wall of the sliding rod 54. By utilizing the characteristic that the transparent plastic belt 39 drives the rolling column 44 to rotate, a cleaning assembly 5 is arranged inside the device. When the rolling column 44 rotates, the rolling column 44 drives the driving rod 52 to rotate in the same direction through the belt 58, and the transparent plastic belt 39 drives the liquid sample to contact the bidirectional threaded rod 53, as shown in FIG. Figure 6 The bidirectional threaded rod 53 rotating clockwise will contact the liquid sample on the outer wall of the transparent plastic belt 39, and most of the liquid sample will adhere to the side wall of the bidirectional threaded rod 53, removing excess liquid in the liquefied sample.

[0042] The cleaning assembly 5 also includes a cleaning frame 56 fixedly connected to the side wall of the meshing plate 55, and a cleaning scraper 57 is fixedly connected to the side wall of the meshing plate 55. The side wall of the meshing plate 55 is meshed with the outer wall of the bidirectional threaded rod 53. Under the rolling of the bidirectional threaded rod 53, the thickness of the liquefied sample is ensured to be equal, and fine lines appear on the outer wall of the sample, thereby improving the tightness of the subsequent fit between the glass sheet 24 and the transparent plastic belt 39.

[0043] The end of the belt 58 away from the driving rod 52 is rotatably connected to the outer wall of the rolling column 44, the outer wall of the transparent plastic belt 39 is rotatably connected to the outer wall of the rolling rod 38, the outer wall of the gear 2 37 is meshed with the outer wall of the gear 1 34, and the end of the spring 1 25 away from the L-shaped rod 23 is fixedly connected to the top of the fixed frame 21. Utilizing the rotation characteristics of the above-mentioned two-way threaded rod 53, an engaging plate 55 is provided inside the device. When the two-way threaded rod 53 rotates, the engaging plate 55 will be forced to move horizontally left and right along the outer wall of the sliding rod 54, and the laterally moving engaging plate 55 will push the large impurities remaining on the top of the transparent plastic belt 39 to the side through the cleaning frame 56, so as to avoid the residue of large impurities on the top of the transparent plastic belt 39; in addition, during the process of the transverse movement of the engaging plate 55, the engaging plate 55 will drive the cleaning scraper 57 to slide along the outer wall of the two-way threaded rod 53, and the cleaning scraper 57 will scrape and clean the outer wall of the two-way threaded rod 53, so as to avoid the residue of the outer wall of the two-way threaded rod 53 and affect the accuracy of subsequent detection.

[0044] The method for using the food toxic and harmful substance residue detection device includes the following steps:

[0045] S1: Assemble equipment;

[0046] S2: Pushing equipment;

[0047] S3: Press detection.

[0048] A specific application of this embodiment is: before use, a brand new glass sheet 24 is fixed to the bottom of the L-shaped rod 23, and then the device is placed on the side wall of the sample, and the rolling rod 38 is facing the direction of the sample. The staff presses the fixing frame 21 and pushes the device toward the sample. During this process, the roller 33 will rotate on the ground, and the rotating roller 33 drives the winding column 35 to rotate through the gear 2 37. The winding column 35 drives another winding column 35 to rotate in the same direction through the transmission belt 1 36, and the two rotating winding columns 35 will force the transparent plastic belt 39 to slide along the outer wall of the mounting plate 1. Figure 1When the device moves to the left, roller 1 33 drives the transparent plastic belt 39 to move toward the direction of the lighting mechanism 2 through gear 2 37. During this process, after the transparent plastic belt 39 contacts the sample, the sample will stick to the outer wall of the transparent plastic belt 39. During this process, the mounting plate 1 and the rolling rod 38 will also slide and flatten the bottom of the sample to ensure that the sediment at the bottom of the sample reaches the top of the transparent plastic belt 39. Then the staff continues to push the device to move the sample to the bottom of the fixed frame 21. Then, the staff presses the L-shaped rod 23 to make the glass sheet 1 24 close to the top of the transparent plastic belt 39. Then the detection instrument 12 starts to detect. Through the application of the above components, while ensuring the integrity of the sample, the material precipitated at the bottom of the sample will directly contact the top of the transparent plastic belt 39 to avoid the top liquid and the bottom sediment mixing, causing large errors in the data.

[0049] Taking advantage of the characteristic of the winding column 35 driving the transparent plastic belt 39 to move, a material blocking assembly 4 is arranged inside the device. When the transparent plastic belt 39 drives the sample to move horizontally, the transparent plastic belt 39 will slide along the outer wall of the protruding frame 41 and the rolling column 44. At this time, due to the influence of the inclination angle of the protruding frame 41, when the transparent plastic belt 39 drives the sample to move, large pieces of particles will find it difficult to continue to move with the transparent plastic belt 39 and fall on the surface of the sample. Figure 5 The middle roller 43 is positioned, and the lateral transparent plastic belt 39 will drive part of the liquefied sample to continue moving and cross the rolling column 44 to reach the other end. Through the application of the above components, large impurities in the sample are removed to prevent large impurities from affecting the detection accuracy of the equipment.

[0050] Taking advantage of the above-mentioned transparent plastic belt 39 driving the rolling column 44 to rotate, a cleaning component 5 is arranged inside the device. When the rolling column 44 rotates, the rolling column 44 drives the driving rod 52 to rotate in the same direction through the belt 58, and the transparent plastic belt 39 drives the liquid sample to contact the bidirectional threaded rod 53, such as Figure 6 The clockwise rotating bidirectional threaded rod 53 will contact the liquid sample on the outer wall of the transparent plastic belt 39, and most of the liquid sample will adhere to the side wall of the bidirectional threaded rod 53, removing excess liquid in the liquefied sample; in addition, under the rolling of the bidirectional threaded rod 53, the thickness of the liquefied sample is guaranteed to be equal, and fine lines appear on the outer wall of the sample, thereby improving the tightness of the subsequent fit between the glass sheet 24 and the transparent plastic belt 39.

[0051] Taking advantage of the rotation characteristics of the above-mentioned two-way threaded rod 53, an engaging plate 55 is arranged inside the equipment. When the two-way threaded rod 53 rotates, the engaging plate 55 will be forced to move horizontally left and right along the outer wall of the sliding rod 54, and the laterally moving engaging plate 55 will push the large impurities remaining on the top of the transparent plastic belt 39 to the side through the cleaning frame 56, so as to avoid the residue of large impurities on the top of the transparent plastic belt 39; in addition, in the process of the horizontal movement of the engaging plate 55, the engaging plate 55 will drive the cleaning scraper 57 to slide along the outer wall of the two-way threaded rod 53, and the cleaning scraper 57 will scratch and clean the outer wall of the two-way threaded rod 53, so as to avoid the residue of the outer wall of the two-way threaded rod 53 and affect the accuracy of subsequent detection.

[0052] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for detecting toxic and harmful substance residues in food, comprising a mounting plate (1), a mounting groove (11) being provided on the side wall of the mounting plate (1), a detection instrument (12) being fixedly connected to the inner wall of the mounting groove (11), a glass sheet (13) being fixedly connected to the inner wall of the mounting groove (11), a material stopper assembly (4) being fixedly connected to the top of the mounting plate (1), characterized in that: Also includes: An illumination mechanism (2), the illumination mechanism (2) comprising a fixing frame (21) fixedly connected to the top of a mounting plate (1), a light source plate (22) fixedly connected to the bottom of the fixing frame (21), an L-shaped rod (23) slidably connected to the inner wall of the fixing frame (21), a glass sheet (24) fixedly connected to the bottom of the L-shaped rod (23), and a spring (25) fixedly connected to one end of the L-shaped rod (23) away from the glass sheet (24); The collecting mechanism (3) comprises a fixing plate (31) fixedly connected to the side wall of the mounting plate (1); a rotating column (32) is rotatably connected to the side wall of the fixing plate (31); rollers (33) are fixedly connected to both ends of the rotating column (32); a gear (34) is fixedly connected to the side wall of the rotating column (32); two winding columns (35) are rotatably connected to the inner wall of the fixing plate (31); a transmission belt (36) is sleeved on the outer walls of the two winding columns (35); a gear (37) is fixedly connected to one end of the winding column (35) away from the transmission belt (36); a rolling rod (38) is rotatably connected to the side wall of the mounting plate (1); and a transparent plastic belt (39) is wound around the outer wall of the winding column (35).

2. A food toxic and harmful substance residue detection device according to claim 1, characterized in that: The material blocking assembly (4) comprises a protruding frame (41) fixedly connected to the top of the mounting plate (1), and one end of the protruding frame (41) away from the mounting plate (1) is rotatably connected to a rolling column (44), and the outer wall of the rolling column (44) is rotatably connected to the inner wall of the transparent plastic belt (39).

3. A device for detecting toxic and harmful substance residues in food according to claim 2, characterized in that: The material blocking assembly (4) also includes a mounting bracket (42) fixedly connected to the top of the fixed plate (31), a second roller (43) is rotatably connected to the side wall of the mounting bracket (42), the side wall of the second roller (43) is rotatably connected to the side wall of the transparent plastic belt (39), and a cleaning assembly (5) is fixedly connected to the side wall of the protruding frame (41).

4. A device for detecting toxic and harmful substance residues in food according to claim 3, characterized in that: The cleaning assembly (5) comprises a mounting support plate (51) fixedly connected to the side wall of the protruding frame (41), a driving rod (52) being rotatably connected to the inner wall of the mounting support plate (51), and a belt (58) being sleeved on the outer wall of the driving rod (52).

5. A device for detecting toxic and harmful substance residues in food according to claim 4, characterized in that: The cleaning assembly (5) further comprises a bidirectional threaded rod (53) fixedly connected to the side wall of the driving rod (52); a sliding rod (54) is fixedly connected to the inner wall of the mounting support plate (51); and an engaging plate (55) is slidably connected to the outer wall of the sliding rod (54).

6. A device for detecting toxic and harmful substance residues in food according to claim 5, characterized in that: The cleaning assembly (5) further comprises a cleaning frame (56) fixedly connected to the side wall of the meshing plate (55), a cleaning scraper (57) being fixedly connected to the side wall of the meshing plate (55), and the side wall of the meshing plate (55) being meshingly connected to the outer wall of the bidirectional threaded rod (53).

7. A device for detecting toxic and harmful substance residues in food according to claim 6, characterized in that: The end of the belt (58) away from the driving rod (52) is rotatably connected to the outer wall of the rolling column (44), the outer wall of the transparent plastic belt (39) is rotatably connected to the outer wall of the rolling rod (38), the outer wall of the gear 2 (37) is meshedly connected to the outer wall of the gear 1 (34), and the end of the spring 1 (25) away from the L-shaped rod (23) is fixedly connected to the top of the fixing frame (21).

8. A method for using a device for detecting toxic and harmful substance residues in food, using the device for detecting toxic and harmful substance residues in food as claimed in claim 7, characterized in that: The following steps are included: S1: Assemble equipment; S2: Pushing equipment; S3: Press detection.

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