Pen for detecting pesticide residues on crops

Abstract

The utility model relates to the technical field of detection pens, in particular to a crop pesticide residue detection pen which comprises a pen ring, a detection rod is installed on the outer wall of one side of the pen ring, a rectangular frame is fixedly connected to the outer wall of one side of the pen ring, a sliding block is slidably connected to the inner wall of the rectangular frame, and an installation block is fixedly connected to the outer wall of one side of the sliding block. A limiting frame is connected to the outer wall of one side of the mounting block through screws, a liquid suction pipe is slidably connected to the inner wall of the limiting frame, and a rubber head is mounted on the outer wall of the other side of the liquid suction pipe; pesticide residues in the liquid suction pipe are extruded out and detected by the detection rod in the detection rod, the rubber head can be automatically pressed after the liquid suction pipe moves left and right to the maximum degree every time, the operation process is simplified, the position of the liquid suction pipe can be adjusted according to the adsorption positions of different residues, the application range is enlarged, and the detection efficiency is improved. And the detection efficiency of crop residues is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection pens, in particular to a detection pen for detecting crop drug residues. Background Technique

[0002] The pesticide residue detection pen uses a protease as a medium. When the pesticide residue in food is lower than a certain standard, the enzyme reacts with the food to produce a certain amount of acid; when the pesticide residue in food reaches a certain concentration, the pesticide will inhibit the reaction between the enzyme and the food, and the acidity in the system does not change. By measuring the change in acidity, it can be determined whether the pesticide residue exceeds the standard, which can meet the detection needs of non-professionals.

[0003] After retrieval, a rapid pesticide residue detection pen with the patent publication number CN212340732U sucks the residue on the measured object into the liquid suction tube through the dropper by the rubber head starting to inhale. At this time, moving in the direction of the shaft disc in the reverse direction releases the adsorbed residue from the liquid suction tube to the detection rod through the dropper, achieving the effect of completing the detection without the inspection rod directly contacting the detected object, thereby ensuring that the detected object contacts the detection pen without corroding and damaging the detection pen, and saving the detection cost.

[0004] However, the above patent has certain defects. After adjusting the position of the liquid suction tube, it is necessary to manually press the rubber head to control the liquid suction tube to absorb and extrude the residue, and it cannot automatically press the rubber head during the forward and backward movement of the liquid suction tube, and cannot adjust the position of the liquid suction tube according to the adsorption position of different residues, resulting in a small application range and reducing the detection efficiency of crop drug residues. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a detection pen for detecting crop drug residues. The pesticide residue in the liquid suction tube is extruded and detected by the detection rod inside the detection rod. Each time the liquid suction tube moves left and right to the maximum extent, the rubber head will be automatically pressed, simplifying the operation process, and the position of the liquid suction tube can be adjusted according to the adsorption position of different residues, increasing the application range.

[0006] The technical solution for achieving the purpose of the present utility model is as follows: A crop pesticide residue detection pen, comprising a pen ring, on one outer wall of the pen ring, a detection rod is installed, on one outer wall of the pen ring, a rectangular frame is fixedly connected, inside the rectangular frame, a sliding block is slidably connected, on one outer wall of the sliding block, a mounting block is fixedly connected, on one outer wall of the mounting block, a limiting frame is connected by screws, inside the limiting frame, a liquid suction tube is slidably connected, on the other outer wall of the liquid suction tube, a rubber head is installed, on the other outer wall of the mounting block, an L-shaped rod is fixedly connected, on the top outer wall of the mounting block, a cylinder is fixedly connected, on the top outer wall of the cylinder, a slide rail is provided, inside the slide rail, a gear is slidably connected, on one outer wall at the top of the gear, a pressing block is fixedly connected, on the top outer wall of the liquid suction tube, a support block is fixedly connected, and on the top outer wall of the support block, a rack is fixedly connected.

[0007] In some embodiments, the gear and the rack are engaged through tooth patterns, and the support block is slidably connected to the inner wall of the limiting frame.

[0008] In some embodiments, on the top outer wall of the sliding block, a threaded groove is provided, inside the threaded groove, a locking knob is connected by threads, and the sliding block is slidably connected to the inner wall of the rectangular frame.

[0009] In some embodiments, both the limiting frame and the L-shaped rod are adapted to the size of the rubber head, and the liquid suction tube is adapted to the size of the detection rod.

[0010] In some embodiments, inside one inner wall of the detection rod, a detection rod is installed, and the detection rod is adapted to the size of the liquid suction tube.

[0011] Compared with the prior art, the present utility model has the following remarkable advantages:

[0012] Firstly: By setting a pen ring, a detection rod, a mounting block, a gear, a rack, a liquid suction tube and a rubber head, pressing the pressing block on the gear, the gear is driven to rotate. The rack connected by tooth patterns moves accordingly, driving the support block to drive the liquid suction tube to move. When the gear rotates clockwise, the liquid suction tube moves left and descends, and the rubber head is pressed when it touches the limiting frame, and the liquid suction tube absorbs the pesticide residue. After the gear rotates counterclockwise, the liquid suction tube moves right, and the rubber head is pressed by the L-shaped rod, and the pesticide residue in the liquid suction tube is extruded and detected by the detection rod inside the detection rod. Each time the liquid suction tube moves left and right to the maximum extent, the rubber head will be automatically pressed, simplifying the operation process, and the position of the liquid suction tube can be adjusted according to the adsorption position of different residues, increasing the scope of application and improving the detection efficiency of crop residues;

[0013] Second: The utility model is provided with a support block and a sliding block. The thickness of the support block is the same as that of the limit frame, ensuring that the rack can slide normally outside the limit frame. The sliding block enables the mounting block to slide stably outside the rectangular frame, improving the structural stability.

[0014] It solves the problem that after adjusting the position of the liquid suction tube, it is necessary to manually press the rubber head to control the liquid suction tube to absorb and extrude the residue, and it cannot automatically press the rubber head during the moving process of the liquid suction tube before and after, and cannot adjust the position of the liquid suction tube according to the adsorption position of different residues, resulting in a small scope of application. Description of the Drawings

[0015] The following further explains the present utility model in conjunction with the drawings and embodiments:

[0016] Figure 1 is a schematic diagram of the pen loop connection structure provided by the present utility model in an embodiment;

[0017] Figure 2 is a schematic diagram of the liquid suction tube connection structure provided by the present utility model in an embodiment;

[0018] Figure 3 is a schematic diagram of the mounting block connection structure provided by the present utility model in an embodiment;

[0019] Figure 4 is an exploded schematic diagram of the sliding block connection structure provided by the present utility model in an embodiment.

[0020] Explanation of the Reference Numerals in the Drawings:

[0021] 1. Pen loop; 2. Detection rod; 3. Rectangular frame; 4. L-shaped rod; 5. Rubber head; 6. Liquid suction tube; 7. Mounting block; 8. Gear; 9. Limit frame; 10. Rack; 11. Cylinder; 12. Pressing block; 13. Support block; 14. Locking knob; 15. Sliding block; 16. Detection rod. Detailed Embodiment

[0022] The present utility model will be described in detail below. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides a crop drug residue detection pen through improvement. The technical solution of the present utility model is as follows: As Figures 1 - 4As shown in the figure, it includes a pen loop 1. On the outer wall of one side of the pen loop 1, a detection rod 2 is installed. On the outer wall of one side of the pen loop 1, a rectangular frame 3 is fixedly connected. A sliding block 15 is slidably connected to the inner wall of the rectangular frame 3. On the outer wall of one side of the sliding block 15, a mounting block 7 is fixedly connected. On the outer wall of one side of the mounting block 7, a limiting frame 9 is connected by screws. A liquid suction tube 6 is slidably connected to the inner wall of the limiting frame 9. On the outer wall of the other side of the liquid suction tube 6, a rubber head 5 is installed. On the outer wall of the other side of the mounting block 7, an L-shaped rod 4 is fixedly connected. On the top outer wall of the mounting block 7, a cylinder 11 is fixedly connected. On the top outer wall of the cylinder 11, a slide rail is provided. A gear 8 is slidably connected to the inner wall of the slide rail. On the outer wall of one side of the top of the gear 8, a pressing block 12 is fixedly connected. On the top outer wall of the liquid suction tube 6, a support block 13 is fixedly connected. On the top outer wall of the support block 13, a rack 10 is fixedly connected. The rack 10 is preferably fixed to the support block 13 by screws, which is convenient for disassembly and replacement. Between the liquid suction tube 6 and the support block 13, screw connection is preferably considered. Between the mounting block 7 and the L-shaped rod 4, welding is preferably selected to improve the structural firmness.

[0024] Further, the gear 8 and the rack 10 are engaged by tooth patterns, ensuring that the movement of the rack 10 can be driven while the gear 8 rotates. The support block 13 is slidably connected to the inner wall of the limiting frame 9.

[0025] Further, in order to facilitate the limitation of the sliding block 15, a threaded groove is opened on the top outer wall of the sliding block 15. A locking knob 14 is connected to the inner wall of the threaded groove by threads. The sliding block 15 is slidably connected to the inner wall of the rectangular frame 3.

[0026] Further, in order to accurately dock with the moving rubber head 5 for pressing, both the limiting frame 9 and the L-shaped rod 4 are adapted to the size of the rubber head 5, and the liquid suction tube 6 is adapted to the size of the detection rod 2.

[0027] Further, a detection rod 16 is installed on the inner wall of one side of the detection rod 2. The detection rod 16 is adapted to the size of the liquid suction tube 6.

[0028] The specific working method is as follows: When in use, install the pen ring 1 on the pen body. First, push the sliding block 15 and the mounting block 7 left and right according to the different positions of pesticide residues on different crops. After fine-tuning the position of the liquid suction tube 6, fix it with the locking knob 14. Press the pressing block 12 on the gear 8, thereby driving the gear 8 to rotate. The rack 10 connected by tooth engagement moves accordingly, driving the support block 13 and the liquid suction tube 6 to move. When the gear 8 rotates clockwise, the liquid suction tube 6 moves left and descends. When the rubber head 5 touches the limit frame 9, it is pressed, and the liquid suction tube 6 absorbs the pesticide residues. After the gear 8 rotates counterclockwise, the liquid suction tube 6 moves right, and the rubber head 5 is pressed by the L-shaped rod 4. The pesticide residues in the liquid suction tube 6 are squeezed out and detected by the detection rod 16 inside the detection rod 2, achieving the work of detecting without the detection rod 16 directly contacting the detection object, thereby ensuring that the detection object touches the detection pen and corrodes and damages the detection pen. The thickness of the support block 13 is the same as that of the limit frame 9, ensuring that the rack 10 can slide normally outside the limit frame 9.

[0029] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present utility model belong to the common general knowledge of those skilled in the art.

Claims

1. A crop drug residue detection pen, comprising a pen ring (1), characterized in that: A detection rod (2) is installed on one side outer wall of the pen ring (1); a rectangular frame (3) is fixedly connected to one side outer wall of the pen ring (1); a sliding block (15) is slidably connected to the inner wall of the rectangular frame (3); a mounting block (7) is fixedly connected to one side outer wall of the sliding block (15); a limiting frame (9) is connected to one side outer wall of the mounting block (7) by screws; a liquid pipette (6) is slidably connected to the inner wall of the limiting frame (9); a rubber head (5) is installed on the other side outer wall of the liquid pipette (6) The outer wall of the other side of the mounting block (7) is fixedly connected to an L-shaped rod (4), the outer wall of the top end of the mounting block (7) is fixedly connected to a cylinder (11), the top outer wall of the cylinder (11) is provided with a slide rail, the inner wall of the slide rail is slidably connected to a gear (8), the outer wall of one side of the top end of the gear (8) is fixedly connected to a pressing block (12), the outer wall of the top end of the pipette (6) is fixedly connected to a support block (13), and the outer wall of the top end of the support block (13) is fixedly connected to a rack (10).

2. The crop drug residue detection pen according to claim 1, characterized in that: The gear (8) and the rack (10) are meshed with each other via tooth patterns, and the support block (13) is slidably connected to the inner wall of the limiting frame (9).

3. The crop drug residue detection pen according to claim 1, characterized in that: The top outer wall of the sliding block (15) is provided with a thread groove, the inner wall of the thread groove is connected with a locking knob (14) through a thread, and the sliding block (15) is slidably connected to the inner wall of the rectangular frame (3).

4. The crop drug residue detection pen according to claim 1, characterized in that: The limiting frame (9) and the L-shaped rod (4) are both adapted to the size of the rubber head (5), and the pipette (6) is adapted to the size of the detection rod (2).

5. The crop drug residue detection pen according to claim 1, characterized in that: A detection rod (16) is installed on the inner wall of one side of the detection rod (2), and the detection rod (16) is adapted to the size of the pipette (6).

Images