A pesticide residue detector

Abstract

The utility model discloses a pesticide residue detector relates to pesticide residue detection technical field, including detector main part, the even distribution of a plurality of clamping grooves has on detector main part, and the detachable quick measurement card has in the clamping groove, and the two sides of quick measurement card are provided with white medicine piece and red medicine piece respectively, and the compacting mechanism is provided on detector main part, and the lifting mechanism is provided on detector main part, and the extraction box that corresponds with the clamping groove one to one is installed on the lifting mechanism, and the two sides in the extraction box all have the lateral pressing plate of sliding cooperation, the utility model discloses by the sponge block of eluent drop into drop liquid groove suction, make crops light pressure and scrape sponge block, scrape strip again, make eluent overflow to drop liquid groove, and extract residual pesticide, then, extrude sponge block and contain the solution of full extrusion of pesticide, open drop liquid pipe simultaneously, can accurate drop the solution of extraction residual pesticide on white medicine piece, and can apply leafy or round ellipsoid crops, and simple and convenient operation.

Description

Technical Field

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

[0002] The rapid pesticide residue tester (a rapid detection device based on test strips or detection cards) is a commonly used tool for rapid on-site screening of pesticide residues. Its core principle is enzyme inhibition, mainly targeting organophosphorus and carbamate pesticides (these two types are common highly toxic pesticides in Chinese agricultural products that are prone to exceeding standards). It features simple operation and rapid detection. By inserting the pesticide residue rapid test card into the detection device, the pesticide residues on the surface of agricultural products are extracted using an eluent. The extracted solution is then dropped onto the rapid test card and allowed to react for a period of time before the test results are obtained by comparison.

[0003] Existing detection equipment extracts pesticides by dripping the eluent onto the surface of the crop, then rubbing a glass slide on the dripped area to ensure the eluent fully extracts the pesticide from the crop surface. The solution is then dripped from the crop onto a rapid test card. However, this method of pesticide extraction not only makes it difficult to accurately drip the extracted solution onto the rapid test card, but also presents challenges for oval-shaped fruits and vegetables such as apples and dates, and is prone to leakage of the extracted solution. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a pesticide residue detector to solve the problem that the existing detection equipment has difficulty in accurately dripping the extracted solution onto the rapid test card, and is also difficult to operate on oval-shaped fruits and vegetables such as apples and dates, and is prone to loss of the extracted solution.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pesticide residue detector, comprising a detector body, wherein a plurality of slots are evenly distributed on the detector body, and a rapid test card is detachably installed in each slot. A white and a red tablet are respectively arranged on both sides of the fold line of the rapid test card. A pressing mechanism and a lifting mechanism are provided on the detector body. An extraction box corresponding to each slot is installed on the lifting mechanism. Side pressure plates are slidably fitted on both sides of the extraction box. A sponge block is provided inside the extraction box, and a drip groove is opened in the sponge block. A drip tube is connected to the bottom of the extraction box. A switching mechanism is provided on the drip tube, and the discharge end of the drip tube is located above the white tablet.

[0006] Preferably, the clamping mechanism includes a shaft, which is rotatably mounted on the main body of the detector. A cover clamping frame is fixed on the shaft. A worm gear is provided in the middle of the shaft. A worm is rotatably mounted on the tail side of the main body of the detector. The worm gear meshes with the worm. A torsion handle is provided at the outer end of the worm.

[0007] Preferably, the lifting mechanism includes a lifting frame, which is disposed on the rear side of the main body of the detector. A mounting plate is vertically slidably fitted on the lifting frame, and a bridge is fixedly installed on the mounting plate. A lead screw is rotatably installed on the top of the bridge, and a torsion handle is provided at the top end of the lead screw. The lead screw is threadedly connected to the lifting frame.

[0008] Preferably, the switching mechanism includes a gear, which is rotatably mounted on the drip tube. A partition located inside the drip tube is fixedly installed at the center end of the gear. A rack frame one and a rack frame two are fixedly connected to the two side pressure plates respectively. The rack frame two and the rack frame one mesh with the upper and lower sides of the gear respectively.

[0009] Preferably, the mounting plate is provided with a disassembly and assembly mechanism, which includes sliding grooves on both sides of the extraction box. The extraction box is slidably mounted on the mounting plate through the sliding grooves. A bolt is fixedly connected to the tail side of the extraction box. A tail sleeve corresponding to the bolt is provided on the tail side of the mounting plate. A threaded cap is rotatably mounted on the tail sleeve. The bolt can pass through the tail sleeve and be threadedly installed with the threaded cap.

[0010] Preferably, a plurality of scrapers are evenly distributed in the dripping groove.

[0011] Preferably, the detector body is also provided with a timer and a heater, with the heater located below the card slot.

[0012] Preferably, a colorimetric card is provided on the top surface of the main body of the detector.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention involves dripping the eluent into a dripping tank, where it is absorbed by a sponge block. The crop is then gently pressed and scraped against the sponge block and scraper, causing the eluent to overflow into the dripping tank and extract residual pesticides. The sponge block is then squeezed to fully expel the pesticide-containing solution, and the dripping tube is opened simultaneously to precisely drip the solution containing the extracted pesticides onto a white tablet. This method is applicable to leaf-shaped or oval-shaped crops and is simple and convenient to operate.

[0015] This invention, through the setting of a lifting mechanism, can adjust the distance between the drip tube and the white tablet, which not only avoids motion interference between the pressing mechanism and the drip tube, but also allows the drip tube to be at a height close to the white tablet to drip the test solution onto the white tablet, preventing the solution from splashing.

[0016] This invention allows for the disassembly and replacement of the extraction box via a disassembly and assembly mechanism, facilitating the testing of the next batch of agricultural products. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a three-dimensional view of the relevant structure on the extraction box of this utility model;

[0019] Figure 3 This is a front sectional view of the relevant structure on the extraction box of this utility model;

[0020] Figure 4 This is a side sectional view of the relevant structure on the extraction box of this utility model;

[0021] Figure 5 This is a schematic diagram of the relevant structure of the clamping mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the relevant structure of the lifting mechanism of this utility model;

[0023] Figure 7 This is a schematic diagram of the disassembly and assembly mechanism of this utility model.

[0024] [Figure Labels]

[0025] 1. Detector body; 2. Card slot; 3. Quick test card; 4. White tablet; 5. Red tablet; 6. Pressing mechanism; 61. Shaft; 62. Cover holder; 63. Worm gear; 64. Worm; 65. Torque handle one; 7. Lifting mechanism; 71. Lifting frame; 72. Mounting plate; 73. Cable tray; 74. Lead screw; 75. Torque handle two; 8. Extraction box; 9. Side pressure plate; 10. Sponge block; 11. Dropping tank; 12. Dropping tube; 13. Switching mechanism; 131. Gear; 132. Partition; 133. Rack frame one; 134. Rack frame two; 14. Disassembly and assembly mechanism; 141. Slide groove; 142. Bolt; 143. Tail sleeve; 144. Threaded cap; 15. Scraper; 16. Timer; 17. Heater; 18. Colorimetric card. Detailed Implementation

[0026] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0027] As attached Figure 1 To be continued Figure 7This utility model provides a pesticide residue detector, including a detector body 1. Several slots 2 are evenly distributed on the detector body 1. A rapid test card 3 can be detachably installed in each slot 2. A white tablet 4 and a red tablet 5 are respectively arranged on both sides of the fold line of the rapid test card 3. The white tablet 4 and the red tablet 5 contain cholinesterase and indophenol acetate, respectively, which can react with pesticide residues. A pressing mechanism 6 and a lifting mechanism 7 are provided on the detector body 1. An extraction box 8 corresponding to each slot 2 is installed on the lifting mechanism 7. Side pressure plates 9 are slidably fitted on both sides of the extraction box 8. A sponge block 10 is provided inside the extraction box 8. The sponge block 10 can absorb the eluent, and wiping the crop with the sponge block 10 can dissolve and extract the pesticide residue. To extract residual pesticides, a drip groove 11 is provided inside the sponge block 10. A drip tube 12 is connected to the bottom of the extraction box 8. A switch mechanism 13 is provided on the drip tube 12, and the discharge end of the drip tube 12 is located above the white tablet 4. Several scrapers 15 are evenly distributed in the drip groove 11. The scrapers 15 facilitate the scraping and extraction of residual pesticides. A timer 16 and a heater 17 are also provided on the main body 1 of the detector. The heater 17 is located below the card slot 2. The timer 16 is used to provide feedback on the detection time of the solution and the white tablet 4 and red tablet 5. The heater 17 can heat the instrument to reach the enzyme activity point of 38°. A colorimetric card 18 is provided on the top surface of the main body 1 of the detector. The colorimetric card 18 is used to compare and obtain the detection results.

[0028] In use, the eluent is dripped into the dripping tank 11 and absorbed by the sponge block 10. Then, the crop is gently pressed and scraped against the sponge block 10 and the scraper 15 to allow the eluent to overflow into the dripping tank 11 and extract residual pesticides. This further reduces the pressure on the crop, allowing the sponge block 10 to fully absorb the solution on the surface of the crop. Then, the side pressure plate 9 squeezes the sponge block 10 to fully squeeze out the solution containing pesticides. At the same time, the switching mechanism 13 opens the dripping tube 12, allowing the solution to drip from the dripping tube 12 onto the white tablet 4. The pressing mechanism 6 folds the rapid test card 3, allowing the white tablet 4 and the red tablet 5 to react with the solution for detection.

[0029] Preferably, the clamping mechanism 6 includes a shaft 61, which is rotatably mounted on the main body 1 of the detector. A cover clamping frame 62 is fixed on the shaft 61. A worm wheel 63 is provided in the middle of the shaft 61. A worm 64 is rotatably mounted on the tail side of the main body 1 of the detector. The worm wheel 63 meshes with the worm 64. A torsion handle 65 is provided at the outer end of the worm 64.

[0030] Specifically, by rotating the torsion handle 65, the worm gear 64 and the worm wheel 63 mesh, which can drive the shaft 61 and the cover holder 62 to flip, folding the rapid test card 3 along the fold line, and snapping the white pill 4, the red pill 5 and the test solution together.

[0031] Preferably, the lifting mechanism 7 includes a lifting frame 71, which is located at the rear side of the main body 1 of the detector. A mounting plate 72 is vertically slidably fitted on the lifting frame 71. A bridge frame 73 is fixedly installed on the mounting plate 72. A lead screw 74 is rotatably installed on the top of the bridge frame 73. A torsion handle 75 is provided at the top of the lead screw 74. The lead screw 74 is threadedly connected to the lifting frame 71.

[0032] Specifically, by rotating the second torsion handle 75, the lead screw 74 is threaded on the lifting frame 71, which can drive the mounting plate 72 to rise and fall vertically, thereby adjusting the distance between the drip tube 12 and the white tablet 4. This not only avoids motion interference between the pressing mechanism 6 and the drip tube 12, but also allows the drip tube 12 to be at a height close to the white tablet 4 so that the test solution can be dripped onto the white tablet 4, preventing the solution from splashing.

[0033] Preferably, the switching mechanism 13 includes a gear 131, which is rotatably mounted on the drip tube 12. A partition 132 located inside the drip tube 12 is fixedly mounted on the central end of the gear 131. A rack frame 133 and a rack frame 134 are fixedly connected to the two side pressure plates 9, respectively. The rack frame 134 and the rack frame 133 mesh with the upper and lower sides of the gear 131, respectively.

[0034] Specifically, when the two side pressure plates 9 approach each other and squeeze the sponge block 10, the rack frame 133 and rack frame 2 134 mesh with the gear 131, which drives the partition plate 132 to rotate and open the drip tube 12, so that the solution can be dripped onto the white tablet 4 through the drip tube 12.

[0035] Furthermore, the mounting plate 72 is provided with a disassembly and assembly mechanism 14, which includes sliding grooves 141 on both sides of the extraction box 8. The extraction box 8 is slidably mounted on the mounting plate 72 through the sliding grooves 141. A bolt 142 is fixedly connected to the tail side of the extraction box 8. A tail sleeve 143 corresponding to the bolt 142 is provided on the tail side of the mounting plate 72. A threaded cap 144 is rotatably mounted on the tail sleeve 143. The bolt 142 can pass through the tail sleeve 143 and be threadedly installed with the threaded cap 144.

[0036] Specifically, the extraction box 8 can be installed on the mounting plate 72 via the slide groove 141. At this time, the bolt 142 is inserted into the tail sleeve 143, and the extraction box 8 can be fixed on the mounting plate 72 by rotating the threaded cap 144. Conversely, the extraction box 8 can be disassembled and replaced to facilitate the testing of the next batch of agricultural products.

[0037] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0038] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0039] In conclusion, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pesticide residue detector, comprising a detector body (1), wherein a plurality of slots (2) are evenly distributed on the detector body (1), wherein a rapid test card (3) is detachably installed in each slot (2), wherein a white tablet (4) and a red tablet (5) are respectively provided on both sides of the fold line of the rapid test card (3), and a pressing mechanism (6) is provided on the detector body (1), characterized in that, The main body (1) of the detector is provided with a lifting mechanism (7), and an extraction box (8) corresponding to the card slot (2) is installed on the lifting mechanism (7). Side pressure plates (9) are slidably fitted on both sides of the extraction box (8). A sponge block (10) is provided inside the extraction box (8). A drip groove (11) is opened inside the sponge block (10). A drip tube (12) is connected to the bottom of the extraction box (8). A switch mechanism (13) is provided on the drip tube (12), and the discharge end of the drip tube (12) is located above the white tablet (4).

2. The pesticide residue detector according to claim 1, characterized in that, The clamping mechanism (6) includes a shaft (61), which is rotatably mounted on the main body (1) of the detector. A cover clamp (62) is fixed on the shaft (61). A worm wheel (63) is provided in the middle of the shaft (61). A worm (64) is rotatably mounted on the tail side of the main body (1). The worm wheel (63) meshes with the worm (64). A torsion handle (65) is provided at the outer end of the worm (64).

3. The pesticide residue detector according to claim 1, characterized in that, The lifting mechanism (7) includes a lifting frame (71), which is located on the tail side of the main body (1) of the detector. A mounting plate (72) is vertically slidably fitted on the lifting frame (71), and a bridge frame (73) is fixedly installed on the mounting plate (72). A lead screw (74) is rotatably installed on the top of the bridge frame (73), and a torsion handle (75) is provided at the top of the lead screw (74). The lead screw (74) is threadedly connected to the lifting frame (71).

4. The pesticide residue detector according to claim 1, characterized in that, The switching mechanism (13) includes a gear (131), which is rotatably mounted on the dripping tube (12). A partition (132) located inside the dripping tube (12) is fixedly installed at the center end of the gear (131). A rack frame one (133) and a rack frame two (134) are fixedly connected to the two side pressure plates (9). The rack frame two (134) and the rack frame one (133) mesh with the upper and lower sides of the gear (131) respectively.

5. The pesticide residue detector according to claim 3, characterized in that, The mounting plate (72) is provided with a disassembly and assembly mechanism (14). The disassembly and assembly mechanism (14) includes a sliding groove (141) on both sides of the extraction box (8). The extraction box (8) is slidably mounted on the mounting plate (72) through the sliding groove (141). A bolt (142) is fixedly connected to the tail side of the extraction box (8). A tail sleeve (143) corresponding to the bolt (142) is provided on the tail side of the mounting plate (72). A threaded cap (144) is rotatably mounted on the tail sleeve (143). The bolt (142) can pass through the tail sleeve (143) and be threadedly installed with the threaded cap (144).

6. The pesticide residue detector according to claim 1, characterized in that, Several scrapers (15) are evenly distributed inside the dripping tank (11).

7. The pesticide residue detector according to claim 1, characterized in that, The detector body (1) is also equipped with a timer (16) and a heater (17), the heater (17) being located below the card slot (2).

8. The pesticide residue detector according to claim 1, characterized in that, A colorimetric card (18) is provided on the top surface of the main body (1) of the detector.

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