Rapid detection device for detecting pesticide residues in agricultural products

Abstract

The invention relates to the technical field of pesticide residue detection, in particular to a rapid detection device for detecting pesticide residues in agricultural products, which comprises a support plate, an adjusting mechanism is arranged on the support plate, a shaking mechanism is arranged on the upper surface of the support plate, and a plurality of loading pipes are uniformly distributed on the shaking mechanism. The upper end of the loading pipe is provided with an opening, the sampling mechanism is used for being matched with the loading pipe to sample the blades, redundant blades are removed after the blades are sampled through the driving part, then the loading pipe filled with the reducing agent is plugged through the plugging mechanism, the loading pipe is shaken through the cooperation of the shaking mechanism, and the loading pipe is separated from the loading pipe. According to the technical scheme, the solution to be detected can be integrally prepared, the detection efficiency is improved, and the solutions to be detected with different parameters can be prepared at a time, so that various detection data can be obtained during subsequent detection of the solution to be detected, and the detection efficiency and the diversity of detection results are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pesticide residue detection, in particular to a rapid detection device for detecting pesticide residues in agricultural products. Background Art

[0002] Pesticide residues mainly come from the use of pesticides in agricultural production. Some pesticides will adhere to crops, and some will be scattered in the environment. Pesticides in the environment may be absorbed by plants. Agricultural products need to be tested for pesticide residues during the production process to ensure that the pesticide residues in agricultural products are within a safe range and to protect consumer health.

[0003] When testing agricultural products for pesticide residues, it is necessary to use a testing device to sample the agricultural products for testing. When testing leafy vegetable agricultural products for pesticide residues, it is first necessary to sample the leaves, mix the sampled leaves with an extractant to prepare a test solution, and then test the test solution for pesticide residues.

[0004] Usually, when preparing the test solution, when multiple tests are required, it is necessary to prepare multiple corresponding test solutions respectively, and it is also necessary to perform multiple samplings, and the leaves need to be sampled repeatedly, which affects the preparation efficiency; and when the leaves are cut into a size of 1 cm by 1 cm and shaken and mixed with the buffer solution, the pesticides remaining in the agricultural products cannot be completely precipitated, resulting in errors in the detection results of the pesticide residues; and when a single test solution is tested, the test results are single, and when multiple test solutions are prepared, the preparation steps need to be repeated multiple times, and the preparation efficiency of the test solutions is low. Summary of the invention

[0005] Therefore, the present invention provides a rapid detection device for detecting residual pesticides in agricultural products, which solves the above technical problems.

[0006] The present invention provides a rapid detection device for detecting residual pesticides in agricultural products, comprising a support plate, on which a shaking angle adjustment mechanism for adjusting the mixing of leaves and an extractant is provided, the upper surface of the support plate is provided with a shaking mechanism, a plurality of loading tubes are evenly distributed on the shaking mechanism, the upper ends of the loading tubes are open, the detection device also includes a sampling mechanism for sampling leaves in cooperation with the loading tubes, the sampling mechanism is provided on the shaking mechanism, the detection device also includes a blocking mechanism for fully mixing the leaf sample and the extractant inside the loading tube, the blocking mechanism is provided on the upper surface of the support plate.

[0007] The sampling mechanism includes two front-to-back symmetrical driving members fixedly connected to the support plate, and the two driving members are fixedly connected to the opposite sides with a pressure plate, and the upper surface of the support plate and between the two adjacent loading tubes on the left and right are fixedly connected to a limiting platform, and a cutting piece is arranged on the rear side of the front pressure plate.

[0008] The cutting piece includes a plurality of inverted L-shaped connecting plates evenly distributed on the upper surface of the front pressure plate, the lower surface of the horizontal section of the inverted L-shaped connecting plate is fixedly connected with a second elastic telescopic connecting rod, the bottom ends of the plurality of second elastic telescopic connecting rods are commonly fixedly connected with a cutting knife, and the cutting knife is slidably matched with the pressure plate up and down.

[0009] According to an embodiment of the present invention, the shaking mechanism includes four connecting columns distributed in a rectangular shape and fixedly connected to the upper surface of a support plate, a mounting plate is connected to the four connecting columns for sliding up and down together, auxiliary rollers are provided at the contact positions between the mounting plate and the connecting columns, a plurality of connecting parts are provided on the upper surface of the mounting plate, the plurality of connecting parts correspond one-to-one to a plurality of loading tubes, and a shaking part is provided on the lower surface of the mounting plate.

[0010] According to an embodiment of the present invention, the connecting member includes a circular frame fixedly connected to the upper surface of the mounting plate, the bottom end of the loading tube is provided with a connecting block matched with the opening on the upper surface of the circular frame, the opposite back surfaces of the two circular frames distributed front and back are connected with limit pins for forward and backward sliding, a through hole matched with the limit pin is provided on the connecting block at the bottom of the loading tube, the limit pin penetrates the circular frame front and back, and the opposite surfaces of the two circular frames distributed front and back are fixedly connected with π-shaped elastic telescopic frames, and two left-right symmetrical limit pins are fixedly connected to the horizontal section of the π-shaped elastic telescopic frame, the limit pin is composed of a rectangular block in the upper half and a cylinder in the lower half, the rectangular block of the limit pin slides up and down with the circular frame, and the end of the limit pin close to the limit pin is provided with a pin hole matched with the cylinder of the limit pin and slides up and down.

[0011] According to an embodiment of the present invention, the rocking member includes two left-right symmetrical transmission shafts rotatably connected to the upper surface of the support plate, the two transmission shafts are connected by belt transmission, the front and rear surfaces of the transmission shaft are rotatably connected to a turntable, the side of the turntable away from the transmission shaft is eccentrically connected to a connecting rocker arm, the end of the connecting rocker arm away from the turntable is hinged to the lower surface of the mounting plate, a driving motor is fixedly installed on the right side of the upper surface of the support plate, and the output shaft of the driving motor is connected to the transmission shaft on the right side by a belt.

[0012] According to an embodiment of the present invention, the blocking mechanism includes two left-right symmetrical hydraulic telescopic cylinders fixedly connected to the upper surface of the support plate, the telescopic ends of the two hydraulic telescopic cylinders are commonly fixedly connected to a connecting plate, a plurality of sealing plugs are evenly distributed on the lower surface of the connecting plate, the plurality of sealing plugs correspond one-to-one to a plurality of loading tubes, a mounting piece is provided on the lower surface of the sealing plug, a plurality of crushing pieces are detachably mounted on the mounting piece.

[0013] According to an embodiment of the present invention, the mounting component includes a connecting block fixedly connected to the lower surface of the sealing plug, and two mounting grooves symmetrically based on the vertical center line of the connecting block are provided on the four vertical surfaces of the connecting block, and an elastic support seat is elastically slidably connected to the inner vertical connecting block direction of the mounting groove, and two limit slides symmetrically based on the vertical center line of the connecting block are fixedly connected to each vertical surface of the connecting block, and the two limit slides located on the same vertical surface are jointly connected to the limit baffle for upward and downward sliding, and the positions of the limit baffles corresponding to the mounting grooves are provided with arched through grooves, and the upper surface of the limit baffle is fixedly connected with two first elastic telescopic connecting rods, and the top end of the first elastic telescopic connecting rods is fixedly connected to the lower surface of the sealing plug.

[0014] According to an embodiment of the present invention, the crushing piece is composed of a clamping block, a connecting rope and an impact ball, the two ends of the connecting rope are respectively connected to the clamping block and the impact ball, the impact ball is divided into a smooth surface and a thorny surface, and the size of the clamping block is adapted to the size of the installation groove.

[0015] According to an embodiment of the present invention, each of the driving members includes two left-right symmetrical support frames fixedly connected to a support plate, the two support frames distributed on the left and right are connected to an electric slide seat for sliding up and down together, two left-right symmetrical electric telescopic rods are fixedly connected to a side of the electric slide seat away from the center of the support plate, the telescopic ends of the electric telescopic rods pass through the electric slide seat and are fixedly connected to the corresponding pressing plate, two left-right symmetrical connecting slide bars are fixedly connected to the lower surface of the pressing plate, a supporting plate is connected to the two connecting slide bars for sliding up and down together, the supporting plate and the connecting slide bar are frictionally matched and the friction force is greater than the elastic force of the second elastic telescopic connecting rod.

[0016] According to an embodiment of the present invention, a notch corresponding to the loading tube is provided on the supporting plate, and the lower surface of the supporting plate is slidably matched with the upper surface of the limiting platform.

[0017] According to an embodiment of the present invention, the adjustment mechanism includes a support base hinged on the left side of the lower surface of the support plate, a support sheet is provided on the right side of the lower surface of the support plate, the bottom end of the support sheet is attached to the upper surface of the support base, the right side surface of the support base is fixedly connected to a mounting frame, two front-to-back symmetrical arc-shaped track plates are fixedly connected to the mounting frame, a connecting sleeve is connected to the arc-shaped track plate for sliding up and down, a limiting bolt is provided on the connecting sleeve for keeping it relatively fixed with the arc-shaped track plate, a connecting cross brace is fixedly connected to the left side surface of the connecting sleeve, and the left end of the connecting cross brace is fixedly connected to the right side surface of the support plate.

[0018] The technical solution of the present invention is applied as follows: 1. After sampling the blades through the driving member, the excess blades are removed, and then the sealing mechanism seals the loading tube after the extractant is added, and the loading tube is shaken with the shaking mechanism, so that the test solution can be prepared in an integrated manner, the detection efficiency is improved, and the test solutions under different conditions can be prepared at one time, so that a variety of detection data can be obtained when the test solution is tested later, thereby improving the detection efficiency and the diversity of the detection results.

[0019] 2. By using the mounting parts in conjunction with the crushing parts, a variety of test solutions with different mixing degrees can be prepared simultaneously during the preparation of the test solution, so that test solutions with different mixing degrees with the extractant can be prepared at one time, making the test data more comparable in the subsequent leaf pesticide residue detection process.

[0020] 3. After the leaves are sampled, the driving part cooperates with the pressure plate to automatically remove the excess leaves from the loading tube to avoid the excess leaves affecting the subsequent preparation of the test solution. At the same time, the staff does not need to manually clean the remaining leaves, making the preparation process smoother.

[0021] 4. Through the setting of the adjustment mechanism, the loading tube can be shaken at different inclination angles in cooperation with the shaking mechanism, thereby increasing the influencing factors in the process of preparing the test solution, making the prepared test solution more classified, so that there are more reference bases in the subsequent leaf pesticide residue detection process, making the test result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 1It is a schematic diagram of the three-dimensional structure of a rapid detection device for detecting residual pesticides in agricultural products provided by the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the sampling mechanism provided by the present invention.

[0025] Figure 3 The present invention provides Figure 2 Enlarged view of part A.

[0026] Figure 4 It is a schematic diagram of the opening and closing state of the pressing plate provided by the present invention.

[0027] Figure 5 It is one of the three-dimensional structural schematic diagrams of the blocking mechanism provided by the present invention.

[0028] Figure 6 This is the second three-dimensional structural schematic diagram of the blocking mechanism provided by the present invention.

[0029] Figure 7 The present invention provides Figure 6 Enlarged view of part B.

[0030] Figure 8 It is a front cross-sectional view of the connecting block provided by the present invention.

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the smooth surface type impact ball provided by the present invention.

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the thorn-surface type impact ball provided by the present invention.

[0033] Fig.11 It is a three-dimensional structural schematic diagram of the shaking mechanism provided by the present invention

[0034] Fig.12 It is a schematic diagram of the three-dimensional structure of the shaking piece provided by the present invention.

[0035] Fig.13 This is one of the three-dimensional structural schematic diagrams of the connecting piece provided by the present invention.

[0036] Fig.14 This is the second schematic diagram of the three-dimensional structure of the connecting piece provided by the present invention.

[0037] Figure numerals: 1, support plate; 2, shaking mechanism; 3, loading tube; 4, blocking mechanism; 5, sampling mechanism; 6, adjustment mechanism; 21, connecting piece; 22, connecting column; 23, mounting plate; 24, shaking piece; 41, hydraulic telescopic cylinder; 42, connecting plate; 43, sealing plug; 44, mounting piece; 45, crushing piece; 51, driving piece; 52, pressing plate; 53, cutting piece; 54, limiting platform; 61, supporting base; 62, connecting cross brace; 63, connecting sliding sleeve; 64, mounting frame; 65, arc track plate; 211, circular frame; 212, π-shaped elastic telescopic frame; 213, limiting Position pin; 214, limit pin; 241, turntable; 242, drive motor; 243, connecting rocker; 244, transmission shaft; 441, limit slide; 442, first elastic telescopic connecting rod; 443, limit baffle; 444, mounting groove; 445, connecting block; 446, elastic supporting seat; 451, clamping block; 452, connecting rope; 453, impact ball; 511, supporting frame; 512, supporting plate; 513, connecting slide; 514, electric slide; 515, electric telescopic rod; 531, inverted L-shaped connecting plate; 532, cutting knife; 533, second elastic telescopic connecting rod. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0039] like Figure 1 As shown, a rapid detection device for detecting residual pesticides in agricultural products includes a support plate 1, on which is provided an adjustment mechanism 6 for adjusting the shaking angle when mixing leaves and an extractant, a shaking mechanism 2 is provided on the upper surface of the support plate 1, and a plurality of loading tubes 3 are evenly distributed in a matrix on the shaking mechanism 2, the upper ends of the loading tubes 3 are open and the edges are in the shape of blades, the rapid detection device also includes a sampling mechanism 5 for sampling leaves in cooperation with the loading tubes 3, the sampling mechanism 5 is arranged on the shaking mechanism 2, and the detection device also includes a blocking mechanism 4 for fully mixing the leaf sample and the extractant inside the loading tube 3, and the blocking mechanism 4 is arranged on the upper surface of the support plate 1.

[0040] like Figure 1 , Figure 2 and Figure 4As shown, the sampling mechanism 5 includes two front-to-back symmetrical driving members 51 fixedly connected to the support plate 1, and pressure plates 52 are fixedly connected to the opposite sides of the two driving members 51. A limiting platform 54 is fixedly connected to the upper surface of the support plate 1 and located between the two adjacent loading tubes 3 on the left and right, and a cutting member 53 is provided on the rear side of the front pressure plate 52.

[0041] like Figure 2 and Figure 3 As shown, the cutting piece 53 includes a plurality of inverted L-shaped connecting plates 531 evenly distributed on the upper surface of the front pressure plate 52, the lower surface of the horizontal section of the inverted L-shaped connecting plate 531 is fixedly connected with a second elastic telescopic connecting rod 533, and the bottom ends of the plurality of second elastic telescopic connecting rods 533 are commonly fixedly connected with a cutting knife 532, and the cutting knife 532 is slidably matched with the pressure plate 52 up and down.

[0042] like Figure 1 and Fig.11 As shown, the shaking mechanism 2 includes four connecting columns 22 distributed in a rectangular shape and fixedly connected to the upper surface of the support plate 1, and a mounting plate 23 is connected to the four connecting columns 22 for sliding up and down together. Auxiliary rollers are provided at the contact positions between the mounting plate 23 and the connecting columns 22, and a plurality of connecting members 21 are provided on the upper surface of the mounting plate 23, and the plurality of connecting members 21 correspond one by one to the plurality of loading tubes 3, and a shaking member 24 is provided on the lower surface of the mounting plate 23.

[0043] like Figure 2 As shown, each driving member 51 includes two left-right symmetrical support frames 511 connected to the column 22 and the support plate 1, and the two support frames 511 distributed on the left and right are connected to an electric slide seat 514 for sliding up and down. The electric slide seat 514 is composed of two left and right electric sliders and a rectangular plate connected between the opposite surfaces of the two electric sliders. The electric slider is set on the support frame 511 for sliding up and down. Two left-right symmetrical electric telescopic rods 515 are fixedly connected on one side of the electric slide seat 514 away from the center of the support plate 1. The telescopic end of the electric telescopic rod 515 penetrates the electric The slide seat 514 is fixedly connected to the corresponding pressure plate 52, and two left-right symmetrical connecting slide bars 513 are fixedly connected to the lower surface of the pressure plate 52. The two connecting slide bars 513 are connected to a supporting plate 512 which slides up and down together. There is a friction fit between the supporting plate 512 and the connecting slide bars 513, and the friction force is greater than the elastic force of the second elastic telescopic connecting rod 533. A notch corresponding to the loading tube 3 is opened on the supporting plate 512, and the lower surface of the supporting plate 512 slides with the upper surface of the limit platform 54. The height of the limit platform 54 is lower than the height of the loading tube 3 and is arranged parallel to the loading tube 3.

[0044] During specific use, the staff first places the blades on the loading tube 3 and ensures that the blades can cover the entire upper surface of the loading tube 3. Then the electric telescopic rod 515 extends to push the two pressure plates 52 to move towards each other. The lower surface of the support plate 512 slides against the upper surface of the limit platform 54 until the rear pressure plate 52 contacts the cutting knife 532. At this time, the two support plates 512 also contact each other and are stuck on the loading tube 3. The electric slide 514 moves downward on the support frame 511 and drives the pressure plate 52 to move downward through the electric telescopic rod 515.

[0045] When the pressing plate 52 moves downward, the limiting platform 54 limits the supporting plate 512 in the up and down directions. At this time, the pressing plate 52 pushes the connecting slide rod 513 to move downward on the supporting plate 512, and at the same time pushes the cutting knife 532 to move downward until the pressing plate 52 begins to contact the blade. At this time, the blade is between the pressing plate 52 and the supporting plate 512. As the pressing plate 52 continues to move downward, the middle position of the blade is cut by the cutting knife 532. When the pressing plate 52 moves to fit the top end of the loading tube 3, the top end of the loading tube 3 cuts and samples the blade. The blade located at the top end of the loading tube 3 is sampled and falls into the inside of the loading tube 3. The bottom of the cutting knife 532 is resisted by the supporting plate 512, and the second elastic telescopic connecting rod 533 shrinks under pressure.

[0046] Then the electric telescopic rod 515 contracts. Since there is friction fit between the connecting slide bar 513 and the supporting plate 512, the pressure plate 52 and the supporting plate 512 maintain a clamping state for the blades. At the same time, since the friction force between the supporting plate 512 and the connecting slide bar 513 is greater than the rebound force when the second elastic telescopic connecting rod 533 contracts, the second elastic telescopic connecting rod 533 remains contracted. At this time, the electric telescopic rod 515 is started to contract, and the blades are separated from the middle slit and removed from the loading tube 3. Then the electric slide 514 moves upward, driving the pressure plate 52 and the supporting plate 512 to return to their original positions. After that, the staff manually separates the pressure plate 52 and the supporting plate 512 to take out the excess blades. At the same time, the cutting knife 532 returns to its original position under the action of the elastic force of the second elastic telescopic connecting rod 533 itself.

[0047] It should be noted that, according to the test needs: when testing pesticide residues at different positions of the leaves, multiple leaves are overlapped and covered on the top of the loading tube 3; when testing pesticide residues on the leaves under different factors, such as different degrees of leaf crushing or different types of extracts, multiple test leaves are stacked crosswise head to tail, so that the interior of each loading tube 3 can be divided into various parts of the leaves, avoiding some loading tubes 3 only being divided into the parts of the leaves near the rhizomes, while some loading tubes 3 are only divided into the parts of the leaves near the top.

[0048] For example, after selecting multiple leaves and stacking them end to end crosswise on multiple loading tubes 3 for sampling, add the same amount of buffer into some of the loading tubes 3, and add the same amount of water into another part of the loading tubes 3 to prepare the test solution for pesticide residue detection, so as to study the influence of different types of extractants on the pesticide residue detection data.

[0049] like Figure 1 , Figure 5 and Figure 6 As shown, the blocking mechanism 4 includes two left-right symmetrical hydraulic telescopic cylinders 41 fixedly connected to the upper surface of the support plate 1, and the hydraulic telescopic cylinders 41 are clearance-matched with the mounting plate 23. The telescopic ends of the two hydraulic telescopic cylinders 41 are commonly fixedly connected with a connecting plate 42, and a plurality of sealing plugs 43 are evenly distributed on the lower surface of the connecting plate 42, and the plurality of sealing plugs 43 correspond to the plurality of loading tubes 3 one by one, and a mounting member 44 is provided on the lower surface of the sealing plug 43, and a plurality of crushing members 45 are detachably mounted on the mounting member 44.

[0050] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the mounting member 44 includes a connecting block 445 fixedly connected to the lower surface of the sealing plug 43, and two mounting grooves 444 symmetrically based on the vertical center line of the connecting block 445 are provided on the four vertical surfaces of the connecting block 445, and an elastic support seat 446 is elastically slidably connected inside the mounting groove 444, and two limit slides 441 symmetrically based on the vertical center line of the connecting block 445 are fixedly connected to each vertical surface of the connecting block 445, and the two limit slides 441 located on the same vertical surface are jointly connected to the limit baffle 443 for upward and downward sliding, and the position of the limit baffle 443 corresponding to the mounting groove 444 is provided with an arched through groove, and the upper surface of the limit baffle 443 is fixedly connected with two first elastic telescopic connecting rods 442, and the top of the first elastic telescopic connecting rod 442 is fixedly connected to the lower surface of the sealing plug 43.

[0051] like Figure 5 , Figure 6 , Fig. 9 and Fig.10 As shown, the masher 45 is composed of a clamping block 451, a connecting rope 452 and an impact ball 453. The two ends of the connecting rope 452 are respectively connected to the clamping block 451 and the impact ball 453. The impact ball 453 is divided into a smooth surface and a thorny surface. The size of the clamping block 451 is adapted to the size of the mounting groove 444.

[0052] In specific use, after the leaf sampling is completed, the extractant is added to the inside of the loading tube 3, and then the crushing piece 45 is installed on the connecting block 445. The specific installation process is: first, the limit baffle 443 is pushed upward, and the limit baffle 443 slides upward on the limit slide 441, and the first elastic telescopic connecting rod 442 is compressed, and then the clamping block 451 is clamped in the inside of the installation groove 444, and the upward thrust on the limit baffle 443 is cancelled. Under the action of the elastic force of the first elastic telescopic connecting rod 442 itself, the limit baffle 443 is restored to its original position. At this time, the limit baffle 443 presses the clamping block 451 tightly against the inside of the installation groove 444 to limit The elastic support seat 446 is in position and compressed inside the mounting groove 444. At this time, the elastic support seat 446 generates a reverse thrust on the clamping block 451 under the action of its own elastic force. Cooperating with the limit of the limit baffle 443, the clamping block 451 is firmly fixed inside the mounting groove 444, and the connecting rope 452 is located inside the through groove on the limit baffle 443. The hydraulic telescopic cylinder 41 contracts and drives the sealing block 43 to move downward through the connecting plate 42, blocking the top of the loading tube 3. At the same time, the impact ball 453 is sent into the interior of the loading tube 3, and then the shaking angle of the loading tube 3 is adjusted by the adjusting mechanism 6, and the loading tube 3 begins to be shaken by the shaking mechanism 2.

[0053] It should be noted that, according to the preparation needs, the same type of extractant can be selected for filling inside the multiple loading tubes 3, or different types of extractants can be selected for filling. At the same time, according to the preparation needs, different numbers and different spherical types of impact balls 453 can be installed on the connecting block 445.

[0054] like Figure 1 and Fig.11 As shown, the adjustment mechanism 6 includes a support base 61 hinged on the left side of the lower surface of the support plate 1, a support sheet is provided on the right side of the lower surface of the support plate 1, the bottom end of the support sheet is attached to the upper surface of the support base 61, and the right side of the support base 61 is fixedly connected with a mounting frame 64, and two front-to-back symmetrical arc-shaped track plates 65 are fixedly connected to the mounting frame 64, and a connecting sleeve 63 is slidably connected to the arc-shaped track plate 65 up and down, and a limiting bolt is provided on the connecting sleeve 63 to keep it relatively fixed with the arc-shaped track plate 65, and a connecting cross brace 62 is fixedly connected to the left side of the connecting sleeve 63, and the left end of the connecting cross brace 62 is fixedly connected to the right side of the support plate 1.

[0055] like Fig.11 and Fig.12As shown, the rocking member 24 includes two left-right symmetrical transmission shafts 244 rotatably connected to the upper surface of the support plate 1, and the two transmission shafts 244 are connected by belt transmission. The front and rear surfaces of the transmission shaft 244 are rotatably connected with a turntable 241, and the side of the turntable 241 away from the transmission shaft 244 is eccentrically connected to a connecting rocker rod 243, and the end of the connecting rocker rod 243 away from the turntable 241 is hinged to the lower surface of the mounting plate 23, and a driving motor 242 is fixedly installed on the right side of the upper surface of the support plate 1, and the output shaft of the driving motor 242 is connected to the transmission shaft 244 on the right side through a belt.

[0056] In specific use, after the top of the loading tube 3 is blocked, the position of the connecting sleeve 63 on the arc track plate 65 is adjusted as needed, and the supporting plate 1 is driven to rotate at different angles on the supporting base 61 through the connecting cross brace 62, so as to adjust the inclination angle of the loading tube 3. After the adjustment is completed, the connecting sleeve 63 is fixed on the arc track plate 65 by the limit bolts, so that the inclination angle of the loading tube 3 is kept fixed, and then the driving motor 242 drives the four turntables 241 to rotate synchronously through the two transmission shafts 244, and the turntables 241 rotate synchronously. The disk 241 pushes the mounting plate 23 to move back and forth up and down on the connecting column 22 through the connecting rocker 243. The auxiliary rollers provided on the mounting plate 23 can make the mounting plate 23 slide more smoothly on the connecting column 22. The reciprocating sliding of the mounting plate 23 drives the loading tube 3 to shake. At this time, the impact ball 453 inside the loading tube 3 moves back and forth inside the loading tube 3 as the loading tube 3 shakes, and crushes the leaf sample inside the loading tube 3 so that it is fully mixed with the extractant, thereby completing the preparation of the solution to be tested.

[0057] like Fig.11 , Fig.13 and Fig.14 As shown, the connecting member 21 includes a circular frame 211 fixedly connected to the upper surface of the mounting plate 23, a connecting block adapted to the upper surface opening of the circular frame 211 is provided at the bottom end of the loading tube 3, and the opposite back surfaces of the two circular frames 211 distributed front and back are both slidably connected to the limit pin 214, and a through hole adapted to the limit pin 214 is opened on the connecting block at the bottom end of the loading tube 3, and the limit pin 214 penetrates the circular frame 211 front and back, and the opposite surfaces of the two circular frames 211 distributed front and back are fixedly connected There is a π-shaped elastic telescopic frame 212, the vertical section of the π-shaped elastic telescopic frame 212 is elastically telescopically arranged up and down, and two left-right symmetrical limit pins 213 are fixedly connected to the horizontal section of the π-shaped elastic telescopic frame 212. The limit pin 213 is composed of a rectangular block in the upper part and a cylinder in the lower part. The rectangular block of the limit pin 213 is slidably matched with the circular frame 211 up and down, and the limit pin 214 is close to the end of the limit pin 213. A pin hole is opened that is adapted to the cylinder of the limit pin 213 and slides up and down.

[0058] In specific use, after the preparation of the solution to be tested is completed, the limiting bolt on the connecting sleeve 63 is loosened to cancel the limiting of the connecting sleeve 63, and then the connecting sleeve 63 slides downward on the arc track plate 65 to restore the support plate 1 to a horizontal state on the support base 61, and the support plate 1 is supported by the support sheet at the right end of the support plate 1. At this time, the sealing plug 43 is taken out from the top of the loading tube 3 by extending the hydraulic telescopic cylinder 41, and at the same time, the connecting block 445 can smoothly move the impact ball 453 through the connecting rope 452 Pull it out from the inside of the loading tube 3 to facilitate the staff to clean it and prevent it from affecting the preparation of the next test solution. Then the staff removes the loading tube 3 from the mounting plate 23. The specific process is as follows: first, lift the π-shaped elastic telescopic frame 212 upward to drive the limit pin 213 to separate from the limit latch 214, and cancel the limit on the limit latch 214. When the limit pin 213 is separated from the limit latch 214, pull the limit latch 214 out of the circular frame 211, and then take the loading tube 3 out of the inside of the circular frame 211.

[0059] When the loading tube 3 needs to be fixed inside the circular frame 211, first align the through hole position on the connecting block at the bottom of the loading tube 3 with the position where the limiting pin 214 is inserted, and then the connecting card is quickly connected to the inside of the circular frame 211, and the limiting pin 214 is inserted into the circular frame 211 and passes through the through hole on the connecting block at the bottom of the loading tube 3. Then, the π-shaped elastic telescopic frame 212 is lifted upward, and the limiting pin 214 is pushed until it passes through the circular frame 211, and then the π-shaped elastic telescopic frame 212 is released. The π-shaped elastic telescopic frame 212 is restored to its original position under the action of its own elastic force, and at the same time, the cylinder on the π-shaped elastic telescopic frame 212 is pushed to be inserted into the pin hole on the limit pin 214. In addition, the setting of the rectangular block on the limit pin 213 can ensure that the limit pin 214 remains stable when inserted into the circular frame 211, avoiding the limit pin 214 from shaking and affecting the fixation of the loading tube 3. At this time, the fixation of the loading tube 3 is completed.

[0060] It should be noted that, according to the preparation requirements, a suitable inclination angle of the loading tube 3 can be selected and combined with the above-mentioned different types of influencing factors to prepare different types of test solutions for testing.

[0061] For example: after completing the leaf sampling, the same extractant can be added to the inside of multiple loading tubes 3, or different extractants such as water or slow-release liquid can be added; at the same time, it can be selected to place an impact ball 453 inside the loading tube 3 or not. When the impact ball 453 is placed, the leaves can be crushed during the shaking process to release more pesticides remaining in the crops. At the same time, crushing pieces 45 of different spherical types can be distinguished. When the crushing piece 45 is not placed inside the loading tube 3, only the pesticide residues on the surface of the leaves are detected; and the conditions inside the multiple loading tubes 3 can be set to be the same to perform batch detection to obtain average data, or different conditions can be set inside the loading tubes 3 to form a comparison of the detection results.

[0062] After the preparation of different types of test solutions is completed, the loading tube 3 is removed, and then the test solution is tested for pesticide residues. The test can be carried out using a rapid test card for pesticide residues. First, the upper cover film of the rapid test card is torn off, and the test solution is dipped with a white tablet and placed for a period of time for pre-reaction. Then the rapid test card is folded in half so that the red tablet and the white tablet overlap to react. The result is interpreted according to the color change of the white tablet. Sky blue indicates negative, and white or light blue indicates positive. When the test solutions with various setting conditions are tested in the above manner, if the difference in the test results is not obvious or cannot be seen, a more accurate detection method can be used to detect pesticide residues in the obtained test solution, such as chromatography, spectroscopy, and biomass sensor method for more accurate and in-depth detection.

[0063] Working principle: When in use, the staff first places the blades on the loading tube 3 and ensures that the blades can cover the entire upper surface of the loading tube 3. Then, the two pressure plates 52 are synchronously moved to the top of the loading tube 3 by the driving member 51, and then the pressure plates 52 are driven to move downward. The blades are sampled by the pressure plates 52 close to the upper surface of the loading tube 3, and the sampled blades fall into the inside of the loading tube 3. At this time, the driving member 51 removes the excess blades from the loading tube 3 during the process of moving the pressure plates 52 away from the loading tube 3. Then, the staff adds an extractant to the inside of the loading tube 3, and then contracts the hydraulic telescopic cylinder 41 to seal the opening of the loading tube 3 through the sealing plug 43, and then adjusts the position of the connecting sleeve 63 on the arc track plate 65. The connecting cross brace 62 drives the support plate 1 to tilt, so that the loading tube 3 is tilted, and then the mounting plate 23 is pushed to slide on the connecting column 22 through the shaking piece 24, so that the loading tube 3 is shaken, and the sampling blade is mixed with the extractant inside the loading tube 3 with the help of the crushing piece 45, so as to complete the preparation of the solution to be tested, and then the support plate 1 is restored to its original position, and the loading tube 3 is removed with the help of the connecting piece 21, and then the pesticide residue detection of the solution to be tested is started. First, the upper cover film is torn off the rapid test card, and the extract is dipped with a white tablet and left for a period of time for pre-reaction. Then, the rapid test card is folded in half to overlap the red tablet and the white tablet for reaction. The result is interpreted according to the color change of the white tablet. Sky blue indicates negative, and white or light blue indicates positive.

[0064] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0065] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid detection device for detecting pesticide residues in agricultural products, characterized in that: The invention comprises a support plate (1), wherein the support plate (1) is provided with a shaking angle adjustment mechanism (6) for adjusting the mixing of blades and extractant, and the upper surface of the support plate (1) is provided with a shaking mechanism (2), and a plurality of loading tubes (3) are evenly distributed in a matrix on the shaking mechanism (2), and the upper ends of the loading tubes (3) are open and have blade-shaped edges; A sampling mechanism (5) for cooperating with the loading tube (3) to sample the blades, wherein the sampling mechanism (5) is arranged on the shaking mechanism (2); A sealing mechanism (4) for fully mixing the leaf sample and the extractant inside the loading tube (3), wherein the sealing mechanism (4) is arranged on the upper surface of the support plate (1); The sampling mechanism (5) comprises two front-to-back symmetrical driving members (51) fixedly connected to the support plate (1), a pressing plate (52) fixedly connected to opposite sides of the two driving members (51), a limiting platform (54) fixedly connected to the upper surface of the support plate (1) and located between two adjacent loading tubes (3) on the left and right, and a cutting member (53) is provided on the rear side of the front pressing plate (52); The cutting piece (53) comprises a plurality of inverted L-shaped connecting plates (531) evenly distributed on the upper surface of the front pressing plate (52); a second elastic telescopic connecting rod (533) is fixedly connected to the lower surface of the horizontal section of the inverted L-shaped connecting plate (531); a cutting knife (532) is fixedly connected to the bottom ends of the plurality of second elastic telescopic connecting rods (533); and the cutting knife (532) is slidably matched with the pressing plate (52) up and down.

2. A rapid detection device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: The shaking mechanism (2) comprises four connecting columns (22) which are fixedly connected to the upper surface of the support plate (1) and are distributed in a rectangular shape. A mounting plate (23) is connected to the four connecting columns (22) so as to slide up and down together. Auxiliary rollers are arranged at the contact positions between the mounting plate (23) and the connecting columns (22). A plurality of connecting members (21) are arranged on the upper surface of the mounting plate (23). The plurality of connecting members (21) correspond to the plurality of loading tubes (3) one by one. A shaking member (24) is arranged on the lower surface of the mounting plate (23).

3. A rapid detection device for detecting pesticide residues in agricultural products according to claim 2, characterized in that: The connecting member (21) comprises a circular frame (211) fixedly connected to the upper surface of the mounting plate (23); a connecting block adapted to the opening on the upper surface of the circular frame (211) is provided at the bottom end of the loading tube (3); two circular frames (211) arranged front and back are both slidably connected to limit pins (214) on their opposite back surfaces; a through hole adapted to the limit pin (214) is provided on the connecting block at the bottom end of the loading tube (3); the limit pin (214) penetrates the circular frame (211) front and back; the two circular frames (211) arranged front and back are The opposite surfaces of the frame (211) are fixedly connected with π-shaped elastic telescopic frames (212); the horizontal section of the π-shaped elastic telescopic frame (212) is fixedly connected with two left-right symmetrical limit pins (213); the limit pin (213) is composed of a rectangular block in the upper part and a cylinder in the lower part; the rectangular block of the limit pin (213) is slidably matched with the circular frame (211) up and down; and the limit pin (214) is provided with a pin hole adapted to the cylinder of the limit pin (213) and slidably matched with the limit pin (213) at one end thereof close to the limit pin (213).

4. A rapid detection device for detecting pesticide residues in agricultural products according to claim 2, characterized in that: The shaking member (24) comprises two left-right symmetrical transmission shafts (244) rotatably connected to the upper surface of the support plate (1); the two transmission shafts (244) are connected via a belt transmission; the front and rear surfaces of the transmission shaft (244) are both rotatably connected to a turntable (241); a side of the turntable (241) away from the transmission shaft (244) is eccentrically rotatably connected to a connecting rocker (243); one end of the connecting rocker (243) away from the turntable (241) is hinged to the lower surface of the mounting plate (23); a driving motor (242) is fixedly mounted on the right side of the upper surface of the support plate (1); and the output shaft of the driving motor (242) is transmission-connected to the right transmission shaft (244) via a belt.

5. A rapid detection device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: The blocking mechanism (4) comprises two left-right symmetrical hydraulic telescopic cylinders (41) fixedly connected to the upper surface of the support plate (1); the telescopic ends of the two hydraulic telescopic cylinders (41) are fixedly connected to a connecting plate (42); a plurality of sealing plugs (43) are evenly distributed on the lower surface of the connecting plate (42); the plurality of sealing plugs (43) correspond to the plurality of loading tubes (3) one by one; a mounting member (44) is provided on the lower surface of the sealing plug (43); and a plurality of crushing members (45) are detachably mounted on the mounting member (44).

6. A rapid detection device for detecting pesticide residues in agricultural products according to claim 5, characterized in that: The mounting member (44) comprises a connecting block (445) fixedly connected to the lower surface of the sealing block (43); two mounting grooves (444) symmetrically arranged with the vertical center line of the connecting block (445) as a reference are provided on the four vertical surfaces of the connecting block (445); an elastic support seat (446) is elastically slidably connected in a direction perpendicular to the connecting block (445) inside the mounting groove (444); and two mounting grooves (444) symmetrically arranged with the vertical center line of the connecting block (445) as a reference are fixedly connected on each vertical surface of the connecting block (445). A limit slide (441) is symmetrical with respect to the center line, and two limit slides (441) located on the same vertical surface are connected to a limit baffle (443) by sliding up and down together, and an arched through groove is opened at the position corresponding to the installation groove (444) on the limit baffle (443), and two first elastic telescopic connecting rods (442) are fixedly connected to the upper surface of the limit baffle (443), and the top end of the first elastic telescopic connecting rod (442) is fixedly connected to the lower surface of the sealing plug (43).

7. A rapid detection device for detecting pesticide residues in agricultural products according to claim 5, characterized in that: The crushing piece (45) is composed of a clamping block (451), a connecting rope (452) and an impact ball (453). The two ends of the connecting rope (452) are respectively connected to the clamping block (451) and the impact ball (453). The impact ball (453) is divided into a smooth surface and a thorn surface. The size of the clamping block (451) is adapted to the size of the installation groove (444).

8. A rapid detection device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: Each of the driving members (51) comprises two left-right symmetrical support frames (511) fixedly connected to the support plate (1); the two support frames (511) distributed on the left and right are connected to an electric slide seat (514) in a sliding manner up and down; two left-right symmetrical electric telescopic rods (515) are fixedly connected to a side of the electric slide seat (514) away from the center of the support plate (1); the telescopic ends of the electric telescopic rods (515) pass through the electric slide seat (514) and are fixedly connected to the corresponding pressing plate (52); two left-right symmetrical connecting slide bars (513) are fixedly connected to the lower surface of the pressing plate (52); a supporting plate (512) is connected to the two connecting slide bars (513) in a sliding manner up and down; the supporting plate (512) and the connecting slide bars (513) are frictionally matched and the friction force is greater than the elastic force of the second elastic telescopic connecting rod (533).

9. A rapid detection device for detecting pesticide residues in agricultural products according to claim 8, characterized in that: The supporting plate (512) is provided with a notch corresponding to the loading tube (3), and the lower surface of the supporting plate (512) is slidably matched with the upper surface of the limiting platform (54).

10. A rapid detection device for detecting pesticide residues in agricultural products according to claim 1, characterized in that: The adjustment mechanism (6) comprises a support base (61) hinged on the left side of the lower surface of the support plate (1); a support sheet is provided on the right side of the lower surface of the support plate (1); the bottom end of the support sheet is attached to the upper surface of the support base (61); a mounting frame (64) is fixedly connected to the right side of the support base (61); two front-to-back symmetrical arc-shaped track plates (65) are fixedly connected to the mounting frame (64); a connecting sleeve (63) is slidably connected to the arc-shaped track plate (65) up and down; a limiting bolt is provided on the connecting sleeve (63) so as to keep it relatively fixed with the arc-shaped track plate (65); a connecting cross brace (62) is fixedly connected to the left side of the connecting sleeve (63); the left end of the connecting cross brace (62) is fixedly connected to the right side of the support plate (1).

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