A portable intelligent pesticide residue quantitative detection device

Abstract

The application relates to the technical field of pesticide residue detection, and particularly relates to a portable intelligent pesticide residue quantitative detection device, which comprises a detection instrument body, a support seat is fixedly installed on one side of the detection instrument body, a concentration pipe is fixedly communicated with the detection end of the support seat, a three-way pipe is fixedly communicated with one side of the concentration pipe, a pipe-containing placement box is detachably installed above the support seat, a placement pipe is fixedly communicated with the bottom of one side of the pipe-containing placement box, and a pesticide residue treatment assembly is installed in the pipe-containing placement box; the pesticide residue treatment assembly comprises a filter box mechanism, a cutter mechanism, a return spring and a pressure applying mechanism; in the application, the soaked detection object can be integrally processed by being first broken into pieces and then subjected to multistage wall breaking and shearing, pesticide residues which are difficult to be eluted and are hidden in the micropores of the detection object can be fully squeezed, released and extracted into an aqueous solution, and the defects that single soaking cannot elute deep pesticide residues and the detection value is low are solved.

Description

Technical Field

[0001] This invention relates to the field of pesticide and veterinary drug residue detection technology, specifically a portable intelligent quantitative detection device for pesticide and veterinary drug residues. Background Technology

[0002] Portable intelligent pesticide and veterinary drug residue quantitative detection device is a portable intelligent detection device used for rapid on-site quantitative detection of pesticide and veterinary drug residues. In the industry, the rapid detection of pesticide and veterinary drug residues generally adopts the pretreatment method of soaking and extraction. That is, the sample is soaked in water, and the pesticide and veterinary drug residues attached to the surface are removed and dissolved into the water by the water wetting and rinsing. Then, the water sample after soaking is analyzed by a pesticide and veterinary drug residue quantitative detector to indirectly determine the amount of pesticide and veterinary drug residues, thereby achieving rapid screening and detection. However, this pretreatment method has obvious technical defects. Since pesticide and veterinary drug residues not only adhere to the outer surface, but also penetrate and infiltrate into the micropores and pore structures inside the object being tested, conventional water soaking can only wash away the pesticide and veterinary drug residues free on the surface of the object being tested, and cannot effectively precipitate the pesticide and veterinary drug residues retained in the pores inside the object being tested, resulting in the actual detected value being lower than the true residue amount. Therefore, in order to address the above problems, a portable intelligent pesticide and veterinary drug residue quantitative detection device is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a portable intelligent device for quantitative detection of pesticide and veterinary drug residues, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A portable intelligent pesticide and veterinary drug residue quantitative detection device includes a detection instrument body. A support base is fixedly installed on one side of the detection instrument body. A central tube is fixedly connected to the detection end of the support base. A T-junction is fixedly connected to one side of the central tube. A tube-mounted placement box is detachably installed above the support base. A placement tube is fixedly connected to the bottom of one side of the tube-mounted placement box. A pesticide and veterinary drug residue treatment component is installed inside the tube-mounted placement box. The pesticide and veterinary drug residue treatment component includes a filter box mechanism, a cutting mechanism, a return spring, and a pressure application mechanism. The filter box mechanism is fixedly installed in the tube-mounted placement box. Inside the box, at the bottom, the cutting mechanism is installed on one side of the box with tubes, the return spring is sleeved on the bottom of the cutting mechanism, and the pressure applying mechanism is installed on the other side of the box with tubes. The cutting mechanism includes two vertically arranged screws with a gap between them. One of the screws is threaded to a three-bladed cutting seat on its outer side, and the bottom of the three-bladed cutting seat is fixedly connected to a drive plate. The other screw is threaded to a six-bladed cutting seat on its outer side, and the top of the six-bladed cutting seat is fixedly connected to a mating plate. The mating plate is in contact with the lower surface of the drive plate. The pressure-applying mechanism includes a fixed sleeve, a connecting seat slidably connected to the outer side of the fixed sleeve, a pressure plate fixedly connected to the bottom end of the connecting seat, a vertical rod slidably connected to the inside of the fixed sleeve, the vertical rod being fixedly mounted through the bottom end of the pressure plate, and a set of connecting arms hinged to the side of the connecting seat near the cutter mechanism.

[0005] As a further optimization of this utility model, the following features are provided: the interior of the connecting seat is a hollow cylindrical structure; a connecting ear is fixedly connected to one side of the connecting seat; the fixing sleeve is fixedly connected to the inner wall of the tube-mounted box through the connecting ear; and a circular groove structure for cooperating with the vertical movement of the screw is provided on the pressure plate.

[0006] As a further optimization of this utility model, the top of the upright is configured as a cuboid structure, the bottom of the upright is configured as a cylindrical structure, the cuboid segment of the upright is used for hinged assembly, and the cylindrical segment is slidably adapted to the inside of the fixing sleeve.

[0007] As a further optimization of this utility model, the bottom end of the upright is fixedly connected to a pressure knife, the vertical projection of the pressure knife is a cross-shaped structure, and the four sides of the pressure knife are provided with cutting edges.

[0008] As a further optimization of this utility model, each set of connecting arms includes two connecting arms distributed vertically, the two connecting arms being hinged to each other, and the inner side of the upper connecting arm being rotatably connected to the top of the upright.

[0009] As a further optimization of this utility model, a pressure rod is fixedly connected to the outer side of the upper connecting arm, and the pressure rod is arranged at a 90° vertical angle with the upper connecting arm.

[0010] As a further optimization of this utility model, the filter box mechanism includes a box body, the interior of which is connected to the top of a three-way pipe. One side of the upper surface of the box body is horizontal, and a receiving cavity for accommodating the pressure knife is opened in the middle of the upper surface of the box body. The bottom of the inner side of the receiving cavity is inclined. A flow guiding slope is provided on the other side of the upper surface of the box body. The screw is fixedly installed on the inclined surface of the flow guiding slope. A filter plate is assembled at the bottom of the flow guiding slope, and the upper surface of the filter plate is adapted to the inclined surface of the flow guiding slope.

[0011] As a further optimization of this utility model, the support base is fixedly connected to both sides of its upper surface with connecting bolts, and the support base is detachably locked to the bottom of the tube-loaded box through the connecting bolts on both sides.

[0012] As a further optimization of this utility model, the upper surface of the support base is provided with a slot for placing and storing a three-way pipe in the middle, and the inner side of the slot has an arc-shaped concave structure.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by setting up a tube-mounted placement box in conjunction with a pre-soaking structure, the object to be tested can be fully pre-treated by immersion in clean water, allowing the clean water to fully penetrate the surface and internal pores of the object to be tested, dissolving shallow residual pesticides and veterinary drugs in advance. This is different from the traditional direct testing method, providing the basic conditions for subsequent deep extraction, and effectively improving the problem that traditional testing can only clean the surface of the object to be tested of pesticide and veterinary drug residues and the pretreatment is insufficient. 2. In this invention, by setting a cross-shaped pressure blade breaking structure and a three-blade and six-blade double-layer staggered rotating shearing cutting mechanism, the soaked test object can be processed in an integrated manner of breaking the block first and then multi-stage wall breaking shearing. It can powerfully break open the dense pore structure of the test object and fully squeeze, release and extract the residual pesticide and veterinary drug residues that are difficult to wash out in the micropores inside the test object into the aqueous solution. This solves the defects of traditional single soaking method that cannot extract deep pesticide and veterinary drug residues and the detection value is too low. 3. In this invention, by setting a filtration structure with a guide slope and a filter plate, the slurry of the crushed test object can be concentrated and separated into solid and liquid components, effectively intercepting solid impurities in the test object, ensuring that the test liquid delivered to the test instrument is pure and free of impurities, and avoiding interference from solid particles with the test data; at the same time, with a detachable installation structure and a spring automatic reset structure, the equipment is easy to operate, has a smooth operation, and is easy to disassemble, clean and maintain, making it suitable for rapid quantitative testing in multiple scenarios, and the overall versatility and operational stability of the equipment are stronger. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the pesticide and veterinary drug residue treatment component of the present invention; Figure 3 This is a schematic diagram of the disassembled structure of the cutting mechanism of the present invention; Figure 4 This is a schematic diagram of the combined structure of the filter box mechanism and the cutter mechanism of the present invention; Figure 5 This is a side view of the pressure application mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the connector of the present invention; Figure 7 This is a top view of the pressure plate structure of the present invention; Figure 8 This is a schematic diagram of the pressing knife structure of the present invention; Figure 9 This is a schematic diagram of the connecting arm and the pressure rod of the present invention; Figure 10 This is a schematic diagram of the support base of the present invention.

[0015] In the diagram: 1. Detection instrument body; 2. Support base; 3. Centralized pipe; 4. T-connector; 5. Placement box with pipe; 6. Pesticide and veterinary drug residue treatment component; 7. Groove; 61. Filter box mechanism; 62. Cutter mechanism; 63. Return spring; 64. Pressure application mechanism; 611. Box body; 612. Receiving cavity; 613. Flow guide slope; 614. Filter plate; 621. Screw; 622. Three-lobe cutter holder; 623. Drive disc; 624. Six-lobe cutter holder; 625. Mating disc; 641. Fixing sleeve; 642. Connecting seat; 643. Connecting ear; 644. Upright pole; 645. Pressure plate; 646. Pressure knife; 647. Connecting arm; 648. Pressure rod. Detailed Implementation

[0016] Please see Figures 1-10 The present invention provides a technical solution: A portable intelligent pesticide and veterinary drug residue quantitative detection device includes a detection instrument body 1. A support base 2 is fixedly installed on one side of the detection instrument body 1. A central tube 3 is fixedly connected to the detection end of the support base 2. A valve is installed on the central tube 3. A three-way tube 4 is fixedly connected to one side of the central tube 3. A tube-mounted placement box 5 is detachably installed above the support base 2. A placement tube is fixedly connected to the bottom of one side of the tube-mounted placement box 5. A pesticide and veterinary drug residue treatment component 6 is installed inside the tube-mounted placement box 5. The pesticide and veterinary drug residue treatment component 6 includes a filter box mechanism 61, a cutter mechanism 62, a return spring 63, and a pressure application mechanism 64. The filter box mechanism 61 is fixedly installed inside the tube-mounted placement box 5. At one end, the cutting mechanism 62 is installed on one side inside the tube-mounted placement box 5, the return spring 63 is sleeved on the bottom of the cutting mechanism 62, and the pressure applying mechanism 64 is installed on the other side inside the tube-mounted placement box 5; the cutting mechanism 62 includes two vertically arranged screws 621, and there is a gap between the two screws 621. The outer side of one screw 621 is threadedly connected to a three-lobe cutting seat 622, and the bottom end of the three-lobe cutting seat 622 is fixedly connected to a drive disc 623. The outer side of the other screw 621 is threadedly connected to a six-lobe cutting seat 624, and the top end of the six-lobe cutting seat 624 is fixedly connected to a mating disc 625. The mating disc 625 is in contact with the lower surface of the drive disc 623. The pressure applying mechanism 64 includes a fixed sleeve 641, a connecting seat 642 is slidably connected to the outside of the fixed sleeve 641, a pressure plate 645 is fixedly connected to the bottom end of the connecting seat 642, a vertical rod 644 is slidably connected to the inside of the fixed sleeve 641, and the vertical rod 644 is fixedly assembled to the bottom end of the pressure plate 645. A set of connecting arms 647 is hinged to the side of the connecting seat 642 near the cutter mechanism 62.

[0017] As a further implementation of this solution, the interior of the connecting seat 642 is a hollow cylindrical structure. A connecting ear 643 is fixedly connected to one side of the connecting seat 642. The fixing sleeve 641 is fixedly connected to the inner wall of the tube placement box 5 through the connecting ear 643. A circular groove structure for cooperating with the screw 621 to move vertically is provided on the pressure plate 645. Specifically, the hollow cylindrical connecting seat 642 can be stably fitted onto the outside of the fixed sleeve 641 and slide smoothly to ensure smooth vertical displacement; the connecting ear 643 realizes the stable assembly of the fixed sleeve 641 and the inner wall of the box 611; the circular groove opened on the pressure plate 645 can avoid the screw 621 and ensure that the pressure plate 645 is not stuck during the pressing process.

[0018] As a further implementation of this solution, the top of the upright 644 is set as a cuboid structure, the bottom of the upright 644 is set as a cylindrical structure, the cuboid segment of the upright 644 is used for hinged assembly, and the cylindrical segment is slidably adapted to the inside of the fixing sleeve 641. Specifically, the cuboid structure at the top of the upright 644 effectively restricts circumferential rotation, while the cylindrical structure at the bottom adapts to the internal diameter of the fixing sleeve 641, reducing sliding friction resistance and ensuring smooth vertical extension and retraction of the upright 644.

[0019] As a further implementation of this solution, a pressure knife 646 is fixedly connected to the bottom end of the upright 644. The vertical projection of the pressure knife 646 is a cross-shaped structure, and cutting blades are provided on all four sides of the pressure knife 646. Specifically, the cross-shaped pressure knife 646, with its surrounding blade structure, can cut and pre-process large-volume detection objects during the pressing process, breaking them down into smaller pieces for easier subsequent multi-stage cutting.

[0020] As a further implementation of this scheme, each set of connecting arms 647 includes two connecting arms 647 distributed vertically. The two connecting arms 647 are hinged to each other. The inner side of the upper connecting arm 647 is rotatably connected to the top of the upright 644. The double-layer hinged connecting arms 647 form a lever transmission structure, which can convert the horizontal pressure force into the vertical downward force.

[0021] As a further implementation of this solution, a pressure rod 648 is fixedly connected to the outside of the upper connecting arm 647. The pressure rod 648 and the upper connecting arm 647 are arranged at a 90° vertical angle, which conforms to human operating habits and provides a convenient force application point for the staff.

[0022] As a further implementation of this solution, the filter box mechanism 61 includes a box body 611. The interior of the box body 611 is connected to the top of the three-way pipe 4. One side of the upper surface of the box body 611 is horizontal. A receiving cavity 612 for receiving the pressure knife 646 is opened in the middle of the upper surface of the box body 611. The bottom of the inner side of the receiving cavity 612 is inclined. A guide slope 613 is provided on the other side of the upper surface of the box body 611. The screw 621 is fixedly installed on the slope of the guide slope 613. A filter plate 614 is assembled at the bottom of the guide slope 613. The upper surface of the filter plate 614 is adapted to the inclined surface of the guide slope 613. Specifically, the receiving cavity 612 can accommodate the pressure knife 646 to avoid structural interference; the inclined bottom end facilitates the collection of the crushed slurry of the test object; the guide slope 613 can guide the test object and water flow to converge in the cutting operation area to ensure sufficient crushing and extraction; the bottom-fitted filter plate 614 can filter the crushed mixture, intercept the solid residue of the test object, and only allow the extracted pesticide and veterinary drug residue test liquid to pass through.

[0023] As a further implementation of this solution, both sides of the upper surface of the support base 2 are fixedly connected with connecting bolts. The support base 2 is detachably locked to the bottom end of the tube placement box 5 through the connecting bolts on both sides. The support base 2 is detachably connected to the tube placement box 5 through the connecting bolts on both sides. The assembly is stable and the disassembly and assembly are convenient, which facilitates the cleaning, maintenance and replacement of parts of the internal structure of the equipment.

[0024] As a further implementation of this solution, a slot 7 for placing and storing the three-way pipe 4 is provided in the middle of the upper surface of the support base 2. The inner side of the slot 7 has an arc-shaped concave structure to adapt to the shape structure of the three-way pipe 4.

[0025] Work process: Before the test, the object to be tested and the extraction water are put into the box 611 through the placement tube on the side of the placement box 5 with tube, so that the object to be tested is completely immersed in the water. After standing for a period of time, the water fully wets the pore structure of the object to be tested, initially dissolving the pesticide and veterinary drug residues in the surface and shallow pores, thus completing the pre-soaking and extraction process. After soaking, the staff presses the pressure rod 648, which drives the double-layer hinged connecting arm 647 to rotate through the 90° vertically arranged pressure rod 648, converting the horizontal pressing force into vertical downward force, causing the upright 644 and the connecting seat 642 to slide vertically downward along the fixed sleeve 641, and the pressure plate 645 presses down simultaneously and contacts and squeezes the three-leaf cutter seat 622. After being pressed, the three-bladed cutter seat 622 rotates and moves downward along the screw 621. The bottom active disc 623 rotates synchronously and squeezes the mating disc 625, driving the six-bladed cutter seat 624 to rotate synchronously. Utilizing the difference in the number of blades and the staggered rotation structure of the three-bladed cutter seat 622 and the six-bladed cutter seat 624, the soaked test object is subjected to multi-stage shearing and crushing, breaking open the dense pore structure of the test object and fully releasing the pesticide and veterinary drug residues hidden in the micropores inside the test object into the water. At the same time, the bottom cross-shaped pressure blade 646 presses down synchronously, cutting and breaking large pieces of the test object and squeezing and breaking the cell walls, further improving the extraction effect of pesticide and veterinary drug residues. After crushing and extrusion, the slurry containing pesticide and veterinary drug residues is guided by the guide slope 613 and converges to the filter plate 614. The filter plate 614 intercepts the solid residues of the pesticide and veterinary drug residues. The filtered pure pesticide and veterinary drug residue detection liquid is then transported to the inside of the detection instrument body 1 through the three-way pipe 4 and the central pipe 3 to complete the quantitative detection and analysis. After the operation is completed, the reset spring 63 can drive the cutter structure to automatically reset, which is convenient for the next operation. At the same time, the detachable structure of the equipment facilitates later cleaning and maintenance.

[0026] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A portable intelligent pesticide and veterinary drug residue quantitative detection device, comprising a detection instrument body (1), characterized in that: A support base (2) is fixedly installed on one side of the main body (1) of the detection instrument. A central tube (3) is fixedly connected to the detection end of the support base (2). A three-way tube (4) is fixedly connected to one side of the central tube (3). A tube-mounted placement box (5) is detachably installed above the support base (2). A placement tube is fixedly connected to the bottom of one side of the tube-mounted placement box (5). A pesticide and veterinary drug residue treatment component (6) is installed inside the tube-mounted placement box (5). The pesticide and veterinary drug residue treatment component (6) includes a filter box mechanism (61), a cutter mechanism (62), a reset spring (63), and a pressure application mechanism (64). The filter box mechanism (61) is fixedly installed at the bottom of the tube-mounted box (5). The cutter mechanism (62) is installed on one side of the tube-mounted box (5). The reset spring (63) is sleeved on the bottom of the cutter mechanism (62). The pressure application mechanism (64) is installed on the other side of the tube-mounted box (5). The cutting mechanism (62) includes two vertically arranged screws (621) with a gap between them. One of the screws (621) is threadedly connected to a three-lobe cutting seat (622) on its outer side. The bottom end of the three-lobe cutting seat (622) is fixedly connected to a drive disc (623). The other screw (621) is threadedly connected to a six-lobe cutting seat (624) on its outer side. The top end of the six-lobe cutting seat (624) is fixedly connected to a mating disc (625). The mating disc (625) is in contact with the lower surface of the drive disc (623). The pressure applying mechanism (64) includes a fixed sleeve (641), a connecting seat (642) is slidably connected to the outside of the fixed sleeve (641), a pressure plate (645) is fixedly connected to the bottom end of the connecting seat (642), a vertical rod (644) is slidably connected to the inside of the fixed sleeve (641), the vertical rod (644) is fixedly assembled through the bottom end of the pressure plate (645), and a set of connecting arms (647) is hinged to the side of the connecting seat (642) near the cutter mechanism (62).

2. The portable intelligent pesticide and veterinary drug residue quantitative detection device according to claim 1, characterized in that: The interior of the connecting seat (642) is a hollow cylindrical structure. A connecting ear (643) is fixedly connected to one side of the connecting seat (642). The fixing sleeve (641) is fixedly connected to the inner wall of the tube placement box (5) through the connecting ear (643). A circular groove structure for cooperating with the screw (621) to move vertically is provided on the pressure plate (645).

3. The portable intelligent pesticide and veterinary drug residue quantitative detection device according to claim 1, characterized in that: The top of the upright (644) is a cuboid structure, and the bottom of the upright (644) is a cylindrical structure. The cuboid section of the upright (644) is used for hinged assembly, and the cylindrical section is slidably adapted to the inside of the fixing sleeve (641).

4. The portable intelligent pesticide and veterinary drug residue quantitative detection device according to claim 1, characterized in that: The bottom end of the upright (644) is fixedly connected to a pressure knife (646). The vertical projection of the pressure knife (646) is a cross-shaped structure, and the four sides of the pressure knife (646) are provided with cutting edges.

5. The portable intelligent pesticide and veterinary drug residue quantitative detection device according to claim 1, characterized in that: Each set of connecting arms (647) includes two connecting arms (647) distributed vertically, the two connecting arms (647) are hinged to each other, and the inner side of the upper connecting arm (647) is rotatably connected to the top of the upright (644).

6. The portable intelligent pesticide and veterinary drug residue quantitative detection device according to claim 1, characterized in that: A pressure rod (648) is fixedly connected to the outside of the upper connecting arm (647), and the pressure rod (648) is arranged at a 90° vertical angle with the upper connecting arm (647).

7. The portable intelligent pesticide and veterinary drug residue quantitative detection device according to claim 1, characterized in that: The filter box mechanism (61) includes a box body (611), the interior of which is connected to the top of the three-way pipe (4). One side of the upper surface of the box body (611) is horizontal. A receiving cavity (612) for receiving the pressure knife (646) is opened in the middle of the upper surface of the box body (611). The bottom of the inner side of the receiving cavity (612) is inclined. A guide slope (613) is provided on the other side of the upper surface of the box body (611). The screw (621) is fixedly installed on the slope of the guide slope (613). A filter plate (614) is assembled at the bottom of the guide slope (613). The upper surface of the filter plate (614) is adapted to the inclined surface of the guide slope (613).

8. The portable intelligent pesticide and veterinary drug residue quantitative detection device according to claim 1, characterized in that: Both sides of the upper surface of the support base (2) are fixedly connected with connecting bolts, and the support base (2) is detachably locked to the bottom end of the tube placement box (5) by the connecting bolts on both sides.

9. The portable intelligent pesticide and veterinary drug residue quantitative detection device according to claim 1, characterized in that: The upper surface of the support base (2) has a slot (7) for placing and storing the three-way pipe (4) in the middle. The inner side of the slot (7) has an arc-shaped concave structure.

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