A pesticide residue detection and sampling device

Abstract

This utility model discloses a pesticide residue detection and sampling device in the field of detection and sampling technology. It includes a housing, a lifting crushing mechanism, and an adjustable filtering mechanism. A crushing cylinder is fixedly connected to the housing, with several openings at its lower end. A first mounting frame and a second mounting frame are fixedly connected to the upper end of the housing. The lifting crushing mechanism is mounted on the first mounting frame, and the adjustable filtering mechanism is mounted on the second mounting frame. The advantages of this utility model are: In this embodiment, the surface of the agricultural product is placed in a filter box inside the crushing cylinder containing clean water. A first motor drives a pressing plate to extend into the filter box and crush the surface of the agricultural product. A second motor drives the pressing plate to rotate, causing a crushing ball to crush the surface of the agricultural product. A stirring plate promotes mixing. Then, the pressing plate and filter box are closed and lifted to filter out the crushed solid residue. The mixture can then be collected from the outlet pipe for pesticide residue measurement.

Description

Technical Field

[0001] This utility model relates to the field of detection and sampling technology, specifically to a pesticide residue detection and sampling device. Background Technology

[0002] Accurate detection of pesticide residues is crucial in pesticide production and agricultural product quality and safety monitoring. Testing of finished pesticide products typically requires sampling from the surface of the agricultural product, followed by steps such as crushing and extraction to obtain the liquid sample to be tested.

[0003] In the current technology, most common sampling methods rely on manual operation, such as manual cutting, grinding, or crushing with simple tools. This is inefficient and can easily cause cross-contamination of samples, affecting the accuracy and consistency of test results. Utility Model Content

[0004] The technical problem this invention aims to solve is that when detecting pesticide residues on the surface of agricultural products, the process of manually crushing the surface and mixing it with water is complex and inefficient.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A pesticide residue detection and sampling device includes a housing with an open upper end and several support legs fixedly connected to the lower end of the housing. It also includes a lifting crushing mechanism and an adjustable filtering mechanism. A crushing cylinder is fixedly connected inside the housing, with several openings at its lower end. A first mounting frame and a second mounting frame are fixedly connected to the upper end of the housing. The lifting crushing mechanism is mounted on the first mounting frame, and the adjustable filtering mechanism is mounted on the second mounting frame.

[0007] The lifting crushing mechanism includes a first motor, a lifting plate, and a pressing plate. The first motor is vertically fixed to the upper end of the first mounting frame and drives the lifting plate to vertically lift and lower on the upper side of the crushing cylinder. A second motor is vertically fixed to the upper end of the lifting plate, and the second motor drives the pressing plate to rotate and crush agricultural products inside the crushing cylinder.

[0008] Furthermore, the adjustable filtration mechanism includes a third motor and a filter box. The third motor is vertically fixed to the upper end of the second mounting bracket. A second screw is fixed to the output end of the third motor. An adjustment bracket is fixed to the upper end of the filter box. The adjustment bracket is designed with an L-shaped structure. A sliding plate is fixed to the rear end of the adjustment bracket. A second slider is threadedly connected to the second screw at the rear end of the sliding plate. The third motor drives the filter box to move vertically up and down in the crushing cylinder.

[0009] Furthermore, the filter box has several filter holes on its outer side, and a filter screen is fixed to the inner wall of the filter box.

[0010] Furthermore, the second mounting bracket has a second sliding groove at its front end, the second screw is vertically rotatably connected to the second sliding groove, the second slider is vertically slidably engaged in the second sliding groove, the second mounting bracket has limiting grooves symmetrically distributed on both sides of the second sliding groove at its front end, and the sliding plate has limiting blocks symmetrically distributed on both sides of the second slider fixedly connected to its rear end, the limiting blocks being vertically slidably engaged in the limiting grooves.

[0011] Furthermore, the first mounting bracket has a first sliding groove at its front end, and the output end of the first motor is fixedly connected to a first screw rod that is vertically rotatably connected to the first sliding groove. The lifting plate is vertically slidably sleeved on the first mounting bracket, and the lifting plate has a first slider that is threadedly connected to the first screw rod and vertically slidably engaged in the first sliding groove.

[0012] Furthermore, the output end of the second motor is fixedly connected to a rotating shaft that extends vertically from the lower end of the lifting plate. The lower end of the lifting plate is fixedly connected to a reinforcing ring sleeved on the rotating shaft. The extrusion plate is fixedly connected to the lower end of the rotating shaft and rotatably fitted into the filter box. The lower end of the extrusion plate is fixedly connected to several crushing balls, and the upper end of the extrusion plate is fixedly connected to a stirring plate.

[0013] Furthermore, a liquid outlet pipe is fixedly connected to the front end of the housing, and a control valve is connected to the liquid outlet pipe.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows:

[0015] In this embodiment of the invention, a fixed amount of clean water is added to the box. After the agricultural product skin is placed in the filter box inside the crushing cylinder, the first motor drives the extrusion plate to extend into the filter box to extrude the agricultural product skin. The second motor drives the extrusion plate to rotate so that the crushing ball crushes the agricultural product skin. The stirring plate promotes mixing. Then, the extrusion plate and the filter box are closed and lifted to filter out the solid residue after extrusion. The mixture can then be collected from the liquid outlet pipe for pesticide residue measurement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the entire machine of this utility model.

[0017] Figure 2 This is a cross-sectional view of the box connection of this utility model.

[0018] Figure 3 This is a cross-sectional view of the box body of this utility model.

[0019] Figure 4 This is a schematic diagram of the adjustable filtration mechanism of this utility model.

[0020] Figure 5 This is a schematic diagram of the lifting crushing mechanism of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Housing; 101. Support leg; 102. Liquid outlet pipe; 103. Control valve; 104. Crushing cylinder; 105. Opening; 2. Second mounting bracket; 201. Second chute; 202. Limiting groove; 3. Adjustable filtration mechanism; 301. Third motor; 302. Second screw; 303. Slide plate; 304. Second slider; 305. Limiting block; 306. Adjusting frame; 307. Filter box; 308. Filter hole; 309. Filter screen; 4. First mounting bracket; 401. First chute; 5. Lifting crushing mechanism; 501. First motor; 502. First screw; 503. Lifting plate; 504. First slider; 505. Reinforcing ring; 506. Second motor; 507. Rotating shaft; 508. Extrusion plate; 509. Crushing ball; 510. Stirring plate. Detailed Implementation

[0023] like Figure 1-5 As shown, a pesticide residue detection and sampling device includes a housing 1 with an open upper end and several support legs 101 fixedly connected to the lower end of the housing 1. It also includes a lifting crushing mechanism 5 and an adjustable filtering mechanism 3. A crushing cylinder 104 is fixedly connected inside the housing 1, with several openings 105 at its lower end. A first mounting frame 4 and a second mounting frame 2 are fixedly connected to the upper end of the housing 1. The lifting crushing mechanism 5 is mounted on the first mounting frame 4, and the adjustable filtering mechanism 3 is mounted on the second mounting frame 2. A liquid outlet pipe 102 connected to and communicating with the front end of the housing 1 is fixedly connected to the liquid outlet pipe 102, and a control valve 103 is connected to the liquid outlet pipe 102.

[0024] like Figure 1 , 2As shown in Figure 5, the lifting crushing mechanism 5 includes a first motor 501, a lifting plate 503, and a pressing plate 508. The first motor 501 is vertically fixed to the upper end of the first mounting frame 4 and drives the lifting plate 503 to vertically lift and lower on the upper side of the crushing cylinder 104. A second motor 506 is vertically fixed to the upper end of the lifting plate 503. The second motor 506 drives the pressing plate 508 to rotate and crush agricultural products inside the crushing cylinder 104. A first sliding groove 401 is provided at the front end of the first mounting frame 4. A first screw 502 is vertically rotatably connected to the output end of the first motor 501 within the first sliding groove 401. The lifting plate 503 is vertically slidably sleeved on the first mounting frame 4. A threaded connection is fixed to the lifting plate 503 and vertically slidably fitted within the first sliding groove 401. The first slider 504, the output end of the second motor 506 is fixedly connected to a rotating shaft 507 extending vertically from the lower end of the lifting plate 503, the lower end of the lifting plate 503 is fixedly connected to a reinforcing ring 505 sleeved on the rotating shaft 507, the extrusion plate 508 is fixedly connected to the lower end of the rotating shaft 507 and rotatably fitted in the filter box 307, the lower end of the extrusion plate 508 is fixedly connected to several crushing balls 509, and the upper end of the extrusion plate 508 is fixedly connected to a stirring plate 510. The first motor 501 drives the lifting plate 503 to drive the extrusion plate 508 to descend vertically into the filter box 307 in the crushing cylinder 104 to extrude the surface of the agricultural products placed therein. The second motor 506 drives the extrusion plate 508 to rotate to crush the surface, and the stirring plate 510 mixes the pesticide residue on the crushed surface with clean water.

[0025] like Figure 2-4As shown, the adjustable filtration mechanism 3 includes a third motor 301 and a filter box 307. The third motor 301 is vertically fixed to the upper end of the second mounting frame 2. A second screw 302 is fixed to the output end of the third motor 301. An adjusting frame 306 is fixed to the upper end of the filter box 307. The adjusting frame 306 is designed with an L-shaped structure. A sliding plate 303 is fixed to the rear end of the adjusting frame 306. A second slider 304, threadedly connected to the second screw 302, is fixed to the rear end of the sliding plate 303. The third motor 301 drives the filter box 307 to move vertically up and down in the crushing cylinder 104. Several filter holes 308 are opened on the outer side of the filter box 307. A filter screen 309 is fixed to the inner wall of the filter box 307. The front end of the second mounting frame 2 is opened... A second slide groove 201 is provided, and the second screw 302 is vertically rotatably connected to the second slide groove 201. The second slider 304 is vertically slidably engaged in the second slide groove 201. The front end of the second mounting bracket 2 is provided with limiting grooves 202 symmetrically distributed on both sides of the second slide groove 201. The rear end of the sliding plate 303 is fixed with limiting blocks 305 symmetrically distributed on both sides of the second slider 304. The limiting blocks 305 are vertically slidably engaged in the limiting grooves 202. After the surface is crushed, the lifting crushing mechanism 5 is controlled to rise vertically. The third motor 301 drives the filter box 307 to rise, thereby filtering out the crushed solid material through the filter screen 309 and filter holes 308 and leaving it in the filter box 307, which facilitates the removal of solid impurities after crushing and crushing.

[0026] In use, a fixed amount of clean water is added to the housing 1. The filter box 307 is placed at the bottom of the crushing cylinder 104. The agricultural product skin is placed inside the filter box 307 in the crushing cylinder 104. The output of the first motor 501 drives the first screw 502 to rotate, which in turn drives the first slider 504 to slide within the first groove 401. This causes the lifting plate 503 to slide vertically downwards, and the pressing plate 508 to descend vertically into the filter box 307, pressing against the agricultural product skin. The output of the second motor 506 drives the rotating shaft 507 to rotate, which in turn causes the pressing plate 508 to rotate and crush the agricultural product skin. The crushing ball 509 enhances the crushing effect, breaking down the agricultural product skin and promoting the mixing of pesticide residues with clean water. The stirring plate 510 rotates with the rotating shaft 507 to further promote the mixing of pesticide residues with clean water. The water is mixed, and then the first motor 501 drives the extrusion plate 508 to rise and detach from the crushing cylinder 104. The output end of the third motor 301 drives the second screw 302 to rotate, which in turn drives the second slider 304 to slide in the first slide groove 401, which in turn drives the slide plate 303 to slide vertically upward at the front end of the second mounting frame 2. At the same time, the limiting block 305 slides in the limiting groove 202 to improve the stability of the slide plate 303. The slide plate 303 drives the filter box 307 to slide vertically upward through the adjusting frame 306. Solid-liquid separation is achieved through the filter screen 309 and filter holes 308, so that the solid impurities on the surface pass through the filter and rise with the filter box 307, and thus the solid impurities can be removed from the filter box 307. The mixed liquid of pesticide residues can be collected by opening the liquid outlet pipe 102 with the control valve 103, and then the pesticide residue content can be detected.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pesticide residue detection and sampling device, comprising a housing (1), wherein the upper end of the housing (1) is an open structure, and a plurality of support legs (101) are fixedly connected to the lower end of the housing (1), characterized in that: It also includes a lifting crushing mechanism (5) and an adjustable filtration mechanism (3). A crushing cylinder (104) is fixedly connected in the housing (1). Several openings (105) are opened at the lower end of the crushing cylinder (104). A first mounting frame (4) and a second mounting frame (2) are fixedly connected at the upper end of the housing (1). The lifting crushing mechanism (5) is installed on the first mounting frame (4), and the adjustable filtration mechanism (3) is installed on the second mounting frame (2). The lifting crushing mechanism (5) includes a first motor (501), a lifting plate (503), and a pressing plate (508). The first motor (501) is vertically fixed to the upper end of the first mounting frame (4) and drives the lifting plate (503) to vertically lift and lower on the upper side of the crushing cylinder (104). A second motor (506) is vertically fixed to the upper end of the lifting plate (503). The second motor (506) drives the pressing plate (508) to rotate and crush agricultural products inside the crushing cylinder (104).

2. The pesticide residue detection and sampling device according to claim 1, characterized in that: The adjustable filtration mechanism (3) includes a third motor (301) and a filter box (307). The third motor (301) is vertically fixed to the upper end of the second mounting bracket (2). The output end of the third motor (301) is fixed to a second screw (302). The upper end of the filter box (307) is fixed to an adjustment bracket (306). The adjustment bracket (306) is designed as an L-shaped structure. The rear end of the adjustment bracket (306) is fixed to a sliding plate (303). The rear end of the sliding plate (303) is fixed to a second slider (304) threadedly connected to the second screw (302). The third motor (301) drives the filter box (307) to move vertically up and down in the crushing cylinder (104).

3. The pesticide residue detection and sampling device according to claim 2, characterized in that: The filter box (307) has several filter holes (308) on its outer side, and a filter screen (309) is fixed to the inner wall of the filter box (307).

4. The pesticide residue detection and sampling device according to claim 3, characterized in that: The second mounting bracket (2) has a second sliding groove (201) at its front end. The second screw (302) is vertically rotatably connected to the second sliding groove (201). The second slider (304) is vertically slidably fitted in the second sliding groove (201). The second mounting bracket (2) has a limiting groove (202) symmetrically distributed on both sides of the second sliding groove (201) at its front end. The sliding plate (303) has a limiting block (305) symmetrically distributed on both sides of the second slider (304) fixed at its rear end. The limiting block (305) is vertically slidably fitted in the limiting groove (202).

5. The pesticide residue detection and sampling device according to claim 4, characterized in that: The first mounting bracket (4) has a first sliding groove (401) at its front end. The output end of the first motor (501) is fixedly connected to a first screw (502) that is vertically rotatably connected to the first sliding groove (401). The lifting plate (503) is vertically slidably sleeved on the first mounting bracket (4). The lifting plate (503) has a first slider (504) that is threadedly connected to the first screw (502) and vertically slidably fitted in the first sliding groove (401).

6. The pesticide residue detection and sampling device according to claim 5, characterized in that: The output end of the second motor (506) is fixedly connected to a rotating shaft (507) that extends vertically from the lower end of the lifting plate (503). The lower end of the lifting plate (503) is fixedly connected to a reinforcing ring (505) sleeved on the rotating shaft (507). The extrusion plate (508) is fixedly connected to the lower end of the rotating shaft (507) and rotatably fitted in the filter box (307). The lower end of the extrusion plate (508) is fixedly connected to a plurality of crushing balls (509). The upper end of the extrusion plate (508) is fixedly connected to a stirring plate (510).

7. A pesticide residue detection and sampling device according to any one of claims 1-6, characterized in that: The front end of the housing (1) is fixedly connected to an outlet pipe (102) that communicates with it, and a control valve (103) is connected to the outlet pipe (102).

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