Push-pull type pesticide residue detection sampling device

Abstract

The utility model relates to the technical field of pesticide residue detection, in particular to a push-pull type pesticide residue detection sampling device which comprises a sampling tube, a sampling device main body is fixedly connected to the right side of the sampling tube, an input tube is fixedly connected to the right end in the sampling device main body, and a filter plate is fixedly connected to the interior of the input tube. According to the push-pull type pesticide residue detection sampling device provided by the utility model, the sampling device, the piston, the filter plate and the storage box are arranged, so that impurity precipitates in a sampling solution are filtered, and the situation that the color of the extracting solution is changed due to the fact that residues are precipitated in the extracting solution is prevented; in addition, the filtering plate can be cleaned, so that the situation that the filtering efficiency is influenced due to the fact that the impurities in the sampling liquid are precipitated and block sieve pores of the filtering plate is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide residue detection, in particular to a push-pull type pesticide residue detection sampling device. Background Art

[0002] The development of agricultural industrialization has made the production of agricultural products increasingly dependent on exogenous substances such as pesticides, antibiotics, and hormones. The irrational use of these substances will inevitably lead to excessive pesticide residues in agricultural products, affecting consumer safety. In severe cases, it can cause illness, developmental abnormalities, and even direct poisoning and death. Pesticide residue testing is required before agricultural products are produced and processed to determine whether the content of pesticide components in the agricultural products exceeds the standard.

[0003] When sampling for pesticide residue detection, vegetables or fruits need to be sampled and then crushed to a certain extent so that the extract (reagent) can more fully extract the pesticide residue. The extract is then added to the pesticide residue detector for detection and analysis. However, during the pesticide residue extraction process, residues will precipitate in the extract, causing the extract to change color and affect the test results. Therefore, it is necessary to provide a new push-pull pesticide residue detection sampling device to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a push-pull type pesticide residue detection sampling device.

[0005] The push-pull type pesticide residue detection sampling device provided by the utility model comprises: a sampling tube, a sampling device body is fixedly connected to the right side of the sampling tube, an input tube is fixedly connected to the right end of the sampling device body, a filter plate is fixedly connected to the input tube, a feed tube is fixedly connected to the left side of the input tube, a storage box is provided below the feed tube, a sealing ring is fixedly connected to the upper part of the storage box, empty slots are provided on the left and right sides of the sealing ring, a feed tube is slidably connected to the inside of the right empty slot, an air pipe is slidably connected to the inside of the empty slot, an output tube is fixedly connected to the left side of the top of the air pipe, and the left end of the output tube is fixedly connected to the inside of the right end of the sampling tube. When sampling for pesticide residue detection, the air inside the sampling tube is extracted, and the air inside the storage box is extracted through the output tube and the air pipe, thereby forming a pressure difference. The sampling liquid is sucked into the input tube through a straw, and filtered through a filter plate to filter out impurities precipitated inside the sampling liquid to prevent residue precipitation in the extract, which causes the extract to change in color and affect subsequent test results. The sampling liquid eventually flows into the storage box, which is convenient for collection and subsequent testing. Water is then added to the storage box for cleaning, and the storage box is then installed on the feed pipe and air pipe through a sealing ring. The air inside the sampling tube is pushed to generate air pressure inside the storage box, and water is pressed into the input tube through the feed pipe, thereby cleaning the filter plate. Finally, the cleaned liquid is discharged from the straw to clean the filter plate, thereby preventing impurities precipitated inside the sampling liquid from blocking the sieve holes of the filter plate and affecting the filtration efficiency.

[0006] Preferably, a slide groove is provided inside the sampling tube, a piston is slidably connected inside the slide groove, a movable column is fixedly connected to the middle of the left side of the piston, and a push-pull rod is fixedly connected to the left end of the movable column. By manually pushing and pulling the push-pull rod, the movable column and the piston are moved, so that the air inside the sampling tube is squeezed and extracted.

[0007] Preferably, a straw is fixedly connected to the right side of the input tube, and the straw is fixedly connected to the inside of the sampling device body. The sampling liquid is sucked through the straw, and the cleaned liquid is discharged from the straw during cleaning.

[0008] Preferably, a handle is fixedly connected to the middle of the lower portion of the sampling tube, and the sampling device can be conveniently grasped by the handle to thereby sample for pesticide residue detection.

[0009] Compared with the related art, the push-pull type pesticide residue detection sampling device provided by the utility model has the following advantages:

[0010] Beneficial effects:

[0011] The utility model provides a push-pull type pesticide residue detection sampling device. By installing a sampling device, a piston, a filter plate and a storage box, impurities precipitated in the sampling liquid are filtered to prevent residue precipitation in the extract, which causes the color of the extract to change and affects subsequent detection results. The filter plate can also be cleaned to prevent impurities precipitated in the sampling liquid from blocking the sieve holes of the filter plate and affecting the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of a preferred embodiment of the push-pull type pesticide residue detection and sampling device provided by the utility model;

[0013] Figure 2 for Figure 1 A schematic diagram of the structure inside the main body of the sampling device shown;

[0014] Figure 3 for Figure 1 Schematic diagram of the structure inside the sampling tube shown;

[0015] Figure 4 for Figure 1 Schematic diagram of the structure of the filter plate shown.

[0016] Numbers in the figure: 1. Sampling tube; 2. Sampling device body; 3. Storage box; 4. Straw; 5. Push-pull rod; 6. Handle; 7. Input tube; 8. Feed tube; 9. Output tube; 10. Air tube; 11. Sealing ring; 12. Empty slot; 13. Movable column; 14. Piston; 15. Slide groove; 16. Filter plate. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0019] See also Figures 1 to 4, the embodiment of the present invention provides a push-pull type pesticide residue detection sampling device, which includes: a sampling tube 1, a sampling device body 2 is fixedly connected to the right side of the sampling tube 1, an input tube 7 is fixedly connected to the right end of the sampling device body 2, a filter plate 16 is fixedly connected to the input tube 7, a feed tube 8 is fixedly connected to the left side of the input tube 7, a storage box 3 is provided below the feed tube 8, a sealing ring 11 is fixedly connected to the upper part of the storage box 3, empty grooves 12 are provided on the left and right sides of the sealing ring 11, the feed tube 8 is slidably connected to the right side of the empty groove 12, an air pipe 10 is slidably connected to the empty groove 12, an output tube 9 is fixedly connected to the left side of the top of the air pipe 10, and the left end of the output tube 9 is fixedly connected to the right end of the sampling tube 1. When sampling for pesticide residue detection, the air inside the sampling tube 1 is extracted, thereby being extracted through the output tube 9 and the air pipe 10. The air inside the storage box 3 forms a pressure difference, and the sampling liquid is sucked into the input pipe 7 through the pipette 4. After filtering through the filter plate 16, the impurities in the sampling liquid are filtered to prevent residue precipitation in the extract, which causes the color of the extract to change and affect the subsequent test results. The sampling liquid finally flows into the storage box 3, which is convenient for collection and subsequent testing. After that, water is added to the storage box 3 for cleaning, and then the storage box 3 is installed on the feed pipe 8 and the air pipe 10 through the sealing ring 11, pushing the air inside the sampling tube 1, so that air pressure is generated inside the storage box 3, and water is pressed into the input pipe 7 through the feed pipe 8, thereby cleaning the filter plate 16, and finally the cleaned liquid is discharged from the pipette 4, thereby cleaning the filter plate 16, preventing the impurities in the sampling liquid from clogging the sieve holes of the filter plate 16 and affecting the filtration efficiency.

[0020] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 A slide groove 15 is provided inside the sampling tube 1, and a piston 14 is slidably connected inside the slide groove 15. A movable column 13 is fixedly connected to the middle of the left side of the piston 14, and a push-pull rod 5 is fixedly connected to the left end of the movable column 13. By manually pushing and pulling the push-pull rod 5, the movable column 13 and the piston 14 are moved, so that the air inside the sampling tube 1 is squeezed and extracted.

[0021] In the embodiments of the present invention, please refer to Figure 1 A suction pipe 4 is fixedly connected to the right side of the input tube 7. The suction pipe 4 is fixedly connected to the inside of the sampling device body 2. The sampling liquid is sucked through the suction pipe 4, and the cleaned liquid is discharged from the suction pipe 4 during cleaning.

[0022] In the embodiments of the present invention, please refer to Figure 1 A handle 6 is fixedly connected to the middle of the lower part of the sampling tube 1, and the sampling device can be easily grasped by the handle 6 to sample for pesticide residue detection.

[0023] The working principle of the push-pull type pesticide residue detection sampling device provided by the present invention is as follows: when sampling for pesticide residue detection, the push-pull rod 5 is pulled to move the movable column 13 and the piston 14, and the air inside the sampling tube 1 is extracted, thereby extracting the air inside the storage box 3 through the output tube 9 and the air pipe 10, forming a pressure difference, and the sampling liquid is sucked into the input tube 7 through the suction pipe 4, and filtered through the filter plate 16 to filter the impurities precipitated in the sampling liquid, thereby preventing the precipitation of residues in the extract, causing the color of the extract to change and affecting the subsequent detection results. The sampling liquid finally flows into the storage box 3. The inside of the storage box 3 is convenient for collection and subsequent testing. After that, water is added to the inside of the storage box 3 for cleaning. Then, the storage box 3 is installed on the feed pipe 8 and the air pipe 10 through the sealing ring 11. The push-pull rod 5 is manually pushed to push the air inside the sampling tube 1, so that air pressure is generated inside the storage box 3, and the water is pressed into the input pipe 7 through the feed pipe 8, thereby cleaning the filter plate 16. Finally, the cleaned liquid is discharged from the straw 4, thereby cleaning the filter plate 16 to prevent impurities in the sampling liquid from precipitating and blocking the sieve holes of the filter plate 16, affecting the filtration efficiency.

[0024] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A push-pull type pesticide residue detection sampling device, characterized in that: include: A sampling tube (1), wherein the right side of the sampling tube (1) is fixedly connected to a sampling device body (2); A filter plate (16), the right end of the interior of the sampling device body (2) is fixedly connected to an input tube (7), and the interior of the input tube (7) is fixedly connected to a filter plate (16); The storage box (3) is fixedly connected to the left side of the input pipe (7) with a feed pipe (8), and the storage box (3) is arranged below the feed pipe (8).

2. The push-pull type pesticide residue detection sampling device according to claim 1, characterized in that: A sealing ring (11) is fixedly connected to the upper part of the storage box (3), and a hollow groove (12) is provided on both the left and right sides of the sealing ring (11), and a feed pipe (8) is slidably connected to the inside of the hollow groove (12) on the right side.

3. The push-pull type pesticide residue detection sampling device according to claim 2, characterized in that: An air pipe (10) is slidably connected inside the empty slot (12) on the left side, an output pipe (9) is fixedly connected to the left side of the top of the air pipe (10), and the left end of the output pipe (9) is fixedly connected to the inside of the right end of the sampling tube (1).

4. The push-pull type pesticide residue detection sampling device according to claim 1, characterized in that: A slide groove (15) is provided inside the sampling tube (1), a piston (14) is slidably connected inside the slide groove (15), a movable column (13) is fixedly connected to the middle of the left side of the piston (14), and a push-pull rod (5) is fixedly connected to the left end of the movable column (13).

5. The push-pull type pesticide residue detection sampling device according to claim 1, characterized in that: The right side of the input tube (7) is fixedly connected to a suction tube (4), and the suction tube (4) is fixedly connected inside the sampling device body (2).

6. The push-pull type pesticide residue detection sampling device according to claim 1, characterized in that: A handle (6) is fixedly connected to the middle of the lower portion of the sampling tube (1).

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