Multipurpose tandem extraction device for pesticide residue detection

Abstract

The utility model relates to the technical field of pesticide residue detection, and discloses a multipurpose pesticide residue detection series extraction device which comprises a base, the left side and the right side of the top end of the base are fixedly connected with supporting plates, the top ends of the adjacent sides of the two supporting plates are connected with a first layer plate in a sliding mode, and the front side and the rear side of the first layer plate are provided with a plurality of clamping grooves. Circular funnels are arranged on the inner walls of the clamping grooves in the front and rear sides of the left part, conical funnels are arranged on the inner walls of the clamping grooves in the front and rear sides of the middle part, elliptical funnels are arranged on the front and rear sides of the right part, the bottoms of the circular funnels, the conical funnels and the elliptical funnels are communicated with cylinders, and pistons are arranged on the upper and lower sides of the outer walls of the cylinders. According to the device disclosed by the utility model, through mutual matching among the clamping groove, the first laminate and the piston, the dosage can be accurately controlled during titration, and through mutual matching among the sieve plate, the adsorbent and the beaker, liquid to be detected can be further extracted.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide residue detection, in particular to a multi-purpose pesticide residue detection serial extraction device. Background Art

[0002] Agricultural residues refer to chemical substances that remain in agricultural products or their production processes during agricultural production, usually pesticides, fertilizers, herbicides and other agricultural drugs that remain in agricultural products. These chemicals may remain on the surface, internal tissues, soil of crops, or in equipment, water sources and other parts of the production process such as planting, fertilization and spraying of pesticides. These residues may pose potential risks and hazards to human health, the environment and the ecosystem.

[0003] Therefore, monitoring and controlling agricultural residues is crucial to protecting public health, ensuring food safety and maintaining the ecological environment. Detecting pesticide residues requires an extraction device. In the existing multi-purpose pesticide residue detection cascade extraction device, the funnel has no scale, and it is difficult to control the dosage during titration, which can easily cause large errors. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a multi-purpose pesticide residue detection series extraction device, aiming to improve the problem of poor dosage control during titration in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-purpose pesticide residue detection serial extraction device, including a base, the left and right sides of the top of the base are fixedly connected with support plates, the tops of the adjacent sides of the two support plates are slidably connected with a first layer of plates, the front and rear sides of the first layer of plates are provided with a plurality of slots, the inner walls of the slots on the front and rear sides of the left part are provided with circular funnels, the inner walls of the slots on the front and rear sides of the middle part are provided with conical funnels, and the front and rear sides of the right part are provided with elliptical funnels, the bottoms of the circular funnel, the conical funnel and the elliptical funnel are connected with a cylinder, the upper and lower sides of the outer wall of the cylinder are provided with pistons, and the middle part of the outer wall of the cylinder is provided with a scale.

[0006] As a further description of the above technical solution: the middle and bottom parts of the adjacent sides of the two support plates are slidably connected with a second layer of plates, the top ends of the two second layer of plates are provided with multiple holes, the inner walls of the holes on the left and right sides of the middle and bottom parts are provided with pipe columns, the bottom of the pipe columns is connected with a universal interface, the middle part of the inner wall of the pipe columns is provided with an adsorbent, and sieve plates are provided on the upper and lower sides of the adsorbent.

[0007] As a further description of the above technical solution: a graduated test tube is arranged on the inner wall of the hole in the middle of the bottom, a conical flask is arranged on the left side of the graduated test tube, and a beaker is arranged on the right side of the graduated test tube.

[0008] As a further description of the above technical solution: sliding grooves are provided on the front and rear sides of the left part of the support plate, and the first layer plate and the second layer plate are slidably connected to the sliding grooves.

[0009] As a further description of the above technical solution: the left and right end points of the first layer board and the second layer board are fixedly connected with fixing columns, and the outer sides of the fixing columns are threadedly connected with tightening nuts.

[0010] As a further description of the above technical solution: the top ends of the circular funnel, the conical funnel and the elliptical funnel are provided with frosted plugs, and the top ends of the frosted plugs are fixedly connected with a taking plate.

[0011] As a further description of the above technical solution: the front and rear sides of the top left portion of the first layer of board are fixedly connected with U-shaped blocks, the top of the U-shaped block is rotatably connected with a baffle, and the front and rear sides of the top right portion of the first layer of board are rotatably connected with a clamping plate.

[0012] As a further description of the above technical solution: the front and rear sides of the top of the base are fixedly connected with triangular fixing blocks, and the triangular fixing blocks are fixedly connected to the corresponding support plates.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the funnel can be snapped into the first layer plate through the card slot, wherein the funnel includes a circular funnel, a conical funnel and an elliptical funnel. The solution to be tested is added to the funnel, and the top piston is rotated to make the solution to be tested flow to the bottom and be blocked by the bottom piston. The volume of the solution to be tested flowing into the funnel can be determined by the scale on the outside thereof. The top piston is closed and the bottom piston is rotated to make the solution to be tested flow to the column. The volume flowing to the column can be accurately controlled, thereby improving the accuracy of the device.

[0015] 2. In the utility model, the sieve plate can prevent particles and other substances from flowing to the next place, the adsorbent can adsorb the interfering substances in the liquid to be tested, the beaker, the graduated test tube and the conical flask can be used to collect the solution after the column filtration, and the solution to be tested can be extracted, thereby improving the accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a multi-purpose pesticide residue detection tandem extraction device proposed by the utility model;

[0017] Figure 2 A three-dimensional diagram of a multi-purpose pesticide residue detection tandem extraction device proposed by the utility model;

[0018] Figure 3This is a schematic diagram of the first plate structure of a multi-purpose pesticide residue detection tandem extraction device proposed by the utility model;

[0019] Figure 4 This is an enlarged view of point A of a multi-purpose pesticide residue detection tandem extraction device proposed by the utility model.

[0020] Legend:

[0021] 1. Base; 2. Universal interface; 3. Support plate; 4. First layer plate; 5. Second layer plate; 6. Round funnel; 7. Conical funnel; 8. Elliptical funnel; 9. Piston; 10. Scale; 11. Slot; 12. Hole; 13. Column; 14. Conical flask; 15. Graduated test tube; 16. Beaker; 17. Adsorbent; 18. Sieve plate; 19. Cylinder; 20. Slide; 21. Tighten nut; 22. Fixed column; 23. Frosted plug; 24. Pick-up plate; 25. U-shaped block; 26. Baffle; 27. Card plate; 28. Triangular fixing block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a multi-purpose pesticide residue detection serial extraction device, including a base 1, the top left and right sides of the base 1 are fixedly connected with support plates 3, the tops of the adjacent sides of the two support plates 3 are slidably connected with a first layer plate 4, the front and rear sides of the first layer plate 4 are provided with a plurality of slots 11, the inner walls of the left front and rear side slots 11 are provided with a circular funnel 6, the inner walls of the middle front and rear side slots 11 are provided with a conical funnel 7, and the right front and rear sides are provided with an elliptical funnel 8, the bottoms of the circular funnel 6, the conical funnel 7 and the elliptical funnel 8 are connected with a cylinder 19, the upper and lower sides of the outer wall of the cylinder 19 are provided with pistons 9, and the middle part of the outer wall of the cylinder 19 is provided with a scale 10;

[0024] Specifically, funnels of different shapes have different capacities, among which the circular funnel has the largest capacity. When the desired funnel is selected, the funnel can be snapped into the first layer plate 4 through the slot 11, and the solution to be tested is added thereto. By rotating the top piston 9, the solution to be tested flows to the bottom and is blocked by the bottom piston 9. The volume of the solution to be tested flowing into the funnel can be determined by the scale 10 on the outside. The top piston 9 is closed, and the solution to be tested can be made to flow to the column 13 by rotating the bottom piston 9. At the same time, the volume flowing to the column 13 can be accurately controlled.

[0025] Reference Figure 1 , Figure 3 and Figure 4 , the middle and bottom of the adjacent sides of the two support plates 3 are slidably connected with the second layer plates 5, the tops of the two second layer plates 5 are provided with a plurality of holes 12, the inner walls of the holes 12 on the left and right sides of the middle and bottom are provided with pipe columns 13, the bottom of the pipe column 13 is connected with a universal interface 2, the middle of the inner wall of the pipe column 13 is provided with an adsorbent 17, and the upper and lower sides of the adsorbent 17 are provided with sieve plates 18; the inner wall of the hole 12 in the middle of the bottom end is provided with a graduated test tube 15, a conical flask 14 is provided on the left side of the graduated test tube 15, and a beaker 16 is provided on the right side of the graduated test tube 15; the left and right end points of the first layer plate 4 and the second layer plate 5 are fixedly connected with fixed columns 22, and the outer side of the fixed column 22 is threadedly connected with a tightening nut 21;

[0026] Specifically, the sieve plate 18 can prevent particles and other substances from flowing to the next place, the adsorbent 17 can adsorb interfering substances in the test liquid, the hole 12 above the second plate 5 can be used to place the column 13 and the graduated test tube 15, the conical flask 14, the beaker 16 and the graduated test tube 15 can be selected for use as needed, and the positions of the first plate 4 and the second plate 5 can be fixed by rotating and tightening the nut 21.

[0027] Reference Figure 1 and Figure 2 , the front and rear sides of the left part of the support plate 3 are provided with a slide groove 20, and the first layer plate 4 and the second layer plate 5 are slidably connected to the slide groove 20; the top of the circular funnel 6, the conical funnel 7 and the elliptical funnel 8 are provided with a frosted plug 23, and the top of the frosted plug 23 is fixedly connected to a taking plate 24; the front and rear sides of the left part of the top of the first layer plate 4 are fixedly connected to a U-shaped block 25, and the top of the U-shaped block 25 is rotatably connected to a blocking bar 26, and the front and rear sides of the right part of the top of the first layer plate 4 are rotatably connected to a clamping plate 27; the front and rear sides of the top of the base 1 are fixedly connected to a triangular fixed block 28, and the triangular fixed block 28 is fixedly connected to the corresponding support plate 3;

[0028] Specifically, the slide groove 20 can facilitate the movement of the first layer of plate 4 and the second layer of plate 5, the frosted plug 23 can prevent dust from entering the funnel when not in use, the taking plate 24 can facilitate the picking up of the frosted plug 23, the baffle bar 26 can prevent the funnel from falling, the clamping plate 27 can prevent the baffle bar 26 from accidentally opening, and the triangular fixing block 28 can improve the firmness of the support plate 3 and the base 1.

[0029] Working principle: Before using the device, when it is necessary to measure or transfer a specific volume of the solution to be tested, it is particularly important to choose a suitable funnel. After selecting a suitable funnel, snap the funnel into the slot 11 of the first plate 4 to hang the funnel, pour the solution to be tested into the top of the funnel, and by rotating the top piston 9, the solution can flow smoothly to the bottom. At the same time, the bottom piston 9 will prevent the solution from continuing to flow downward, so that the volume of the solution to be tested that has flowed into the funnel can be accurately read through the outer scale 10. In order to ensure the accuracy of the measurement, the top piston 9 needs to be closed after reading the scale 10, and then the solution to be tested can be accurately introduced into the column 13 by rotating the bottom piston 9. In this process, the flow to the column 13 can also be accurately controlled by observing the scale 10. The volume of the solution is large, and a sieve plate 18 is arranged inside the column 13, which can effectively intercept particles and other impurities in the test liquid, and the pore size of the sieve plate 18 is carefully designed and selected to ensure that only molecules or ions that meet a certain size pass through, while particulate matter larger than the pore size is retained on the sieve plate 18, so that impurities in the test liquid are effectively prevented from flowing to the next place, thereby ensuring the accuracy and reliability of subsequent experimental steps. In order to further improve the purity of the test liquid, an adsorbent 17 is also added to the column 13, which can selectively adsorb interfering substances in the test liquid. These interfering substances may have a negative impact on the experimental results. Therefore, through the action of the adsorbent 17, these interfering substances can be removed from the test liquid to ensure the accuracy and reliability of the experimental results.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-purpose pesticide residue detection tandem extraction device, comprising a base (1), characterized in that: The top left and right sides of the base (1) are fixedly connected with support plates (3), the tops of adjacent sides of the two support plates (3) are slidably connected with a first layer plate (4), the front and rear sides of the first layer plate (4) are provided with a plurality of slots (11), the inner walls of the slots (11) on the front and rear sides of the left part are provided with circular funnels (6), the inner walls of the slots (11) on the front and rear sides of the middle part are provided with conical funnels (7), and the front and rear sides of the right part are provided with elliptical funnels (8), the bottoms of the circular funnel (6), the conical funnel (7) and the elliptical funnel (8) are connected with a cylinder (19), the upper and lower sides of the outer wall of the cylinder (19) are provided with pistons (9), and the middle part of the outer wall of the cylinder (19) is provided with a scale (10).

2. A multi-purpose pesticide residue detection tandem extraction device according to claim 1, characterized in that: The middle and bottom of the adjacent sides of the two support plates (3) are slidably connected with a second layer plate (5), the tops of the two second layer plates (5) are provided with a plurality of holes (12), the inner walls of the holes (12) on the left and right sides of the middle and bottom are provided with pipe columns (13), the bottom of the pipe column (13) is connected with a universal interface (2), the middle of the inner wall of the pipe column (13) is provided with an adsorbent (17), and the upper and lower sides of the adsorbent (17) are provided with sieve plates (18).

3. A multi-purpose pesticide residue detection tandem extraction device according to claim 2, characterized in that: A graduated test tube (15) is arranged on the inner wall of the hole (12) in the middle of the bottom, a conical flask (14) is arranged on the left side of the graduated test tube (15), and a beaker (16) is arranged on the right side of the graduated test tube (15).

4. A multi-purpose pesticide residue detection tandem extraction device according to claim 2, characterized in that: The left front and rear sides of the support plate (3) are both provided with sliding grooves (20), and the first layer plate (4) and the second layer plate (5) are slidably connected to the sliding grooves (20).

5. A multi-purpose pesticide residue detection tandem extraction device according to claim 2, characterized in that: The left and right end points of the first layer plate (4) and the second layer plate (5) are both fixedly connected with fixing columns (22), and the outer sides of the fixing columns (22) are threadedly connected with tightening nuts (21).

6. A multi-purpose pesticide residue detection tandem extraction device according to claim 1, characterized in that: The top ends of the circular funnel (6), the conical funnel (7) and the elliptical funnel (8) are provided with frosted plugs (23), and the top ends of the frosted plugs (23) are fixedly connected with a taking plate (24).

7. The multi-purpose pesticide residue detection tandem extraction device according to claim 1, characterized in that: The front and rear sides of the left top portion of the first layer board (4) are fixedly connected to a U-shaped block (25), the top of the U-shaped block (25) is rotatably connected to a stop bar (26), and the front and rear sides of the right top portion of the first layer board (4) are rotatably connected to a clamping plate (27).

8. The multi-purpose pesticide residue detection tandem extraction device according to claim 1, characterized in that: The front and rear sides of the top end of the base (1) are both fixedly connected with triangular fixing blocks (28), and the triangular fixing blocks (28) are fixedly connected to the corresponding support plates (3).

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