A sampling device for pesticide registration trials

Abstract

The utility model relates to agricultural detection technical field discloses a sampling device of pesticide registration test, the utility model includes the sampler, the utility model discloses a auxiliary device is set up, in the pesticide registration test process, when the pesticide component and the content in the soil are tested, will insert the sampler into the soil needing sampling, then can manually hold the round bar and pull it upward before taking out, drives the pull rope to pull upward, thereby can pull the pull rod and slide to one end in the first rectangular hole, drive the flexible iron sheet and slide out from the first rectangular hole and change, the soil at the bottom of the sampler is cut off and then the soil sample bottom is blocked and holds, when two first springs are in the state of stretching open, like this, when the sampler is drawn out, the sampled soil will not slide, improves the sampling effect and efficiency, avoids the influence of sample loss on the accuracy and integrity of pesticide registration test data.

Description

Technical Field

[0001] This utility model relates to the field of agricultural testing technology, and in particular to a sampling device for pesticide registration testing. Background Technology

[0002] A sampling device is a device used to collect soil, water, air, or crop samples in accordance with prescribed standards and methods during pesticide registration trials.

[0003] In the process of pesticide registration trials, when accurately collecting soil samples to detect pesticide content, the commonly used soil sampling devices often adopt a pole-type structure, which uses the internal space of the pole to hold the collected soil sample by inserting the pole into the soil.

[0004] However, in practice, when the operator pulls the probe out of the soil after soil insertion sampling, the soil sample inside the probe is only fixed by its own weight and friction with the probe wall, lacking effective fixing measures. Once the probe shakes or tilts, the soil sample is very likely to slip out during the extraction process, resulting in sampling failure. This not only causes low sampling efficiency and wastes manpower and time, but may also affect the accuracy and integrity of pesticide registration test data due to sample loss, thereby interfering with the scientific assessment of pesticide safety. Utility Model Content

[0005] The purpose of this invention is to provide a sampling device for pesticide registration testing, aiming to solve the problems in the prior art.

[0006] This invention is implemented as follows: a sampling device for pesticide registration testing includes a sampler. The inner wall of the sampler is provided with an auxiliary device. After the sampler takes a soil sample, the auxiliary device can be used to hold the round rod and pull the rope upward, causing the pull rod and flexible iron plate to slide into the sampler through the first rectangular hole, cutting the sampled soil inside the sampler and holding the bottom of the sampled soil to prevent it from falling out.

[0007] Preferably, the auxiliary device includes a pull rod, a first rectangular hole is formed in the inner wall of the sampler, wherein the inner wall of the first rectangular hole is connected to the inner wall of the internal cavity of the sampler; a flexible iron sheet, wherein one side of the flexible iron sheet is fixedly installed on one side of the pull rod and is disposed in the internal cavity of the sampler; a rectangular rod, wherein both ends of the rectangular rod are respectively fixedly installed on both sides of the internal cavity of the sampler; two first springs, wherein both ends of the springs are respectively fixedly installed on one side of the rectangular rod and one side of the flexible iron sheet; two pull ropes, wherein one end of the pull rope is fixedly installed on one side of the pull rod, and the other end passes through the interior of the sampler and extends out; and a round rod, wherein the outer surface of the round rod is fixedly installed to one end of the two pull ropes.

[0008] Preferably, the auxiliary device further includes two support rods, one end of which is fixedly installed on one side of the flexible iron sheet, and the other end of which passes through the inner wall of the first spring and is slidably connected to the inner wall of the rectangular rod.

[0009] Preferably, triangular rods are symmetrically fixedly installed on both sides of the sampler's interior, with the triangular rods respectively positioned on the upper and lower sides of the pull rope.

[0010] Preferably, an elastic arc block is fixedly installed on one side of the sampler, wherein the outer surface of the round rod is inserted into the arc-shaped inner wall of the elastic arc block.

[0011] Preferably, one side of the sampler is provided with several sampling devices, each including a baffle. One side of the inner wall of the sampler has several second rectangular holes, and both sides of the inner wall of each second rectangular hole have sliding grooves. The baffle is slidably installed in the inner wall of the sliding groove. Two second springs are provided, with their ends fixedly installed on one side of the baffle and one side of the inner wall of the sliding groove, respectively. A limiting mechanism is provided between one side of the baffle and one side of the inner wall of one of the sliding grooves to limit and fix the closed baffle.

[0012] Preferably, the limiting mechanism includes an elastic block, wherein one side of the elastic block is fixedly installed in the inner wall of one side of the baffle, and one side of the inner wall of the slide groove is provided with a locking hole, and one side of the elastic block is inserted into the inner wall of the locking hole.

[0013] Preferably, a protrusion is fixedly installed on one side of the baffle, and the protrusion is located on the side of the baffle away from the inner wall of the sampler and close to the elastic block.

[0014] The beneficial effects of the sampling device for pesticide registration tests disclosed in this utility model are as follows: By setting up an auxiliary device, when testing the pesticide components and contents in the soil during the pesticide registration test, the sampler is inserted into the soil to be sampled. Before taking it out, the round rod can be manually held and pulled upwards, which in turn pulls the pull rope upwards. This pulls the pull rod to slide to one end in the first rectangular hole, causing the flexible iron sheet to deform and slide out of the first rectangular hole. This cuts off the soil at the bottom of the sampler and then seals and supports the bottom of the sampled soil. At this time, the two first springs are in a stretched state, so the sampled soil will not slip when the sampler is pulled out, improving the sampling effect and efficiency, and avoiding the impact of sample loss on the accuracy and completeness of pesticide registration test data. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2This is a three-dimensional structural diagram of the pull rope part of this utility model;

[0017] Figure 3 for Figure 2 A three-dimensional schematic diagram of a local structure;

[0018] Figure 4 This is a three-dimensional structural diagram of the sampler of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the baffle of this utility model.

[0020] Labeling Explanation: 1. Sampler; 2. Auxiliary Device; 3. Sampling Facilitation Device; 21. First Rectangular Hole; 22. Pull Rod; 23. Flexible Iron Sheet; 24. Rectangular Rod; 25. First Spring; 26. Pull Rope; 27. Round Rod; 28. Support Rod; 29. ​​Triangular Rod; 210. Elastic Arc Block; 31. Second Rectangular Hole; 32. Slide Groove; 33. Limiting Mechanism; 331. Locking Hole; 332. Elastic Locking Block; 34. Second Spring; 35. Baffle; 36. Protrusion. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] In this embodiment:

[0025] Reference Figure 1 The diagram shows a preferred embodiment of the present invention.

[0026] This embodiment of a sampling device for pesticide registration testing includes a sampler 1. An auxiliary device 2 is provided on the inner wall of the sampler 1. After the sampler 1 takes a soil sample, the auxiliary device 2 can hold the round rod 27 and pull the rope 26 upward, causing the pull rod 22 and the flexible iron plate 23 to slide into the sampler 1 through the first rectangular hole 21, cutting the sampled soil inside the sampler 1 and holding the bottom of the sampled soil to prevent it from falling off and slipping out.

[0027] Figure 1-5 The auxiliary device 2 shown includes a pull rod 22, a first rectangular hole 21 in the inner wall of the sampler 1, the inner wall of the first rectangular hole 21 being connected to the inner wall of the internal cavity of the sampler 1; a flexible iron sheet 23, one side of which is fixedly mounted on one side of the pull rod 22 and disposed in the internal cavity of the sampler 1; a rectangular rod 24, both ends of which are fixedly mounted on both sides of the internal cavity of the sampler 1; two first springs 25, both ends of which are fixedly mounted on one side of the rectangular rod 24 and one side of the flexible iron sheet 23; two pull ropes 26, one end of which is fixedly mounted on one side of the pull rod 22 and the other end of which passes through the interior of the sampler 1 and extends out; and a round rod 27, the outer surface of which is fixedly mounted to one end of the two pull ropes 26. By setting up auxiliary device 2, during the pesticide registration test, when testing the pesticide components and content in the soil, the sampler 1 is inserted into the soil to be sampled. Before taking it out, the round rod 27 can be manually held and pulled upwards, which in turn pulls the rope 26 upwards. This pulls the rod 22 to slide to one end in the first rectangular hole 21, causing the flexible iron sheet 23 to deform and slide out of the first rectangular hole 21. This cuts off the soil at the bottom of the sampler 1 and then seals and supports the bottom of the sampled soil. At this time, the two first springs 25 are in a stretched state. In this way, when the sampler 1 is pulled out, the sampled soil will not slip, improving the sampling effect and efficiency, and avoiding the impact of sample loss on the accuracy and completeness of pesticide registration test data.

[0028] Figure 1-5The auxiliary device 2 shown also includes two support rods 28, one end of which is fixedly installed on one side of the flexible iron sheet 23, and the other end passes through the inner wall of the first spring 25 and is slidably connected to the inner wall of the rectangular rod 24. By setting the support rods 28, the inner wall of the first spring 25 can be supported and reinforced, making it less prone to damage during use. Triangular rods 29 are symmetrically fixedly installed on both sides of the inside of the sampler 1, and the triangular rods 29 are respectively set on the upper and lower sides of the pull rope 26. By setting the triangular rods 29, the two sides of the pull rope 26 can be protected and blocked, so that during sampling, the soil can be easily removed or enter the interior of the sampler 1 through the guide of the triangular rods 29. An elastic arc block 210 is fixedly installed on one side of the sampler 1, and the outer surface of the round rod 27 is inserted into the arc-shaped inner wall of the elastic arc block 210. By setting the elastic arc block 210, when the round rod 27 does not need to be pulled, it can be locked into the inner wall of the elastic arc block 210 for limited storage.

[0029] Figure 1-5 The sampler 1 shown has several sampling devices 3 on one side. Each sampling device 3 includes a baffle 35. Several second rectangular holes 31 are opened on one side of the inner wall of the sampler 1. Slide grooves 32 are opened on both sides of the inner wall of the second rectangular holes 31. The baffle 35 is slidably installed in the inner wall of the slide groove 32. Two second springs 34 are fixedly installed on one side of the baffle 35 and one side of the inner wall of the slide groove 32, respectively. A limiting mechanism 33 is set between one side of the baffle 35 and one side of the inner wall of one of the slide grooves 32 to limit and fix the closed baffle 35. By setting up a convenient sampling device 3, after the sampler 1 has taken a soil sample, the limiting mechanism 33 on one side of the baffle 35 at the corresponding height can be opened according to the sampling requirements. Then, the baffle 35 is pulled to one end, causing it to slide in the chute 32 to one end, which causes the second spring 34 to contract and open the second rectangular hole 31, exposing the soil sample at the corresponding height. In this way, the pesticide components and content inside the soil sample at the corresponding height can be sampled and tested. This allows the sampling operation to be achieved without completely removing the sample from the sampler 1, avoiding damage to the sample layers when the sample is removed, and improving sampling efficiency.

[0030] Figure 1-5The limiting mechanism 33 shown includes an elastic locking block 332, one side of which is fixedly installed in the inner wall of one side of the baffle 35. A locking hole 331 is provided on one side of the inner wall of one of the grooves 32, and one side of the elastic locking block 332 is inserted into the inner wall of the locking hole 331. By setting the limiting mechanism 33, before the sampler 1 is inserted into the soil, when the second spring 34 drives the baffle 35 to reset and completely block the second rectangular hole 31, the elastic locking block 332 will first be pressed against the baffle 35 to a certain position. Then, the baffle 35 will be inserted into the corresponding groove 32 to a certain position, and the elastic locking block 332 will reset and lock into the locking hole 331, limiting and fixing the baffle 35 so that it firmly blocks the second rectangular hole 31 when it does not need to be opened. A protrusion 36 is fixedly installed on one side of the baffle 35, and the protrusion 36 is located on the side of the baffle 35 away from the inner wall of the sampler 1 and close to the elastic locking block 332. By setting the protrusion 36, when it is necessary to sample the soil at a certain height in the sampler 1, the protrusion 36 can be manually held and pulled to one end, which will pull the baffle 35 to facilitate sampling.

[0031] Working principle: During pesticide registration trials, when testing the pesticide components and content in the soil, the sampler 1 is inserted into the soil to be sampled. Before removing it, the round rod 27 can be manually held and pulled upwards, causing the pull rope 26 to pull upwards. This pulls the pull rod 22 to slide to one end in the first rectangular hole 21, causing the flexible iron sheet 23 to deform and slide out of the first rectangular hole 21, cutting off the soil at the bottom of the sampler 1 and sealing and supporting the bottom of the sampled soil. At this time, the two first springs 25 are in a stretched state, so the sampled soil will not slip when the sampler 1 is pulled out, improving the sampling effect and efficiency, and avoiding the impact of sample loss on the accuracy and completeness of pesticide registration test data.

[0032] 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 and improvements 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 sampling device for pesticide registration testing, comprising a sampler (1), characterized in that: The inner wall of the sampler (1) is provided with an auxiliary device (2). After the sampler (1) takes a soil sample, the auxiliary device (2) can hold the round rod (27) and pull the rope (26) upward, causing the pull rod (22) and the flexible iron plate (23) to slide into the sampler (1) through the first rectangular hole (21) to cut the sampled soil inside the sampler (1) and catch the bottom of the sampled soil to prevent it from falling out.

2. The sampling device for pesticide registration testing as described in claim 1, characterized in that: The auxiliary device (2) includes a pull rod (22), and the inner wall of the sampler (1) is provided with a first rectangular hole (21), wherein the inner wall of the first rectangular hole (21) is connected to the inner wall of the cavity inside the sampler (1); A flexible iron sheet (23), wherein one side of the flexible iron sheet (23) is fixedly installed on one side of the pull rod (22) and is set in the internal cavity of the sampler (1); A rectangular rod (24), wherein the two ends of the rectangular rod (24) are respectively fixedly installed on both sides of the internal cavity of the sampler (1); Two first springs (25), wherein the two ends of the springs are fixedly mounted on one side of the rectangular rod (24) and one side of the flexible iron sheet (23), respectively; Two pull ropes (26), one end of which is fixedly installed on one side of the pull rod (22), while the other end passes through the interior of the sampler (1) and extends out; A round rod (27), wherein the outer surface of the round rod (27) is fixedly installed to one end of two pull ropes (26).

3. The sampling device for pesticide registration testing as described in claim 2, characterized in that: The auxiliary device (2) also includes two support rods (28), one end of which is fixedly installed on one side of the flexible iron sheet (23), and the other end passes through the inner wall of the first spring (25) and is slidably connected to the inner wall of the rectangular rod (24).

4. The sampling device for pesticide registration testing as described in claim 2, characterized in that: The sampler (1) has triangular rods (29) symmetrically fixed on both sides inside, with the triangular rods (29) respectively located on the upper and lower sides of the pull rope (26).

5. The sampling device for pesticide registration testing as described in claim 2, characterized in that: An elastic arc block (210) is fixedly installed on one side of the sampler (1), wherein the outer surface of the round rod (27) is inserted into the arc-shaped inner wall of the elastic arc block (210).

6. The sampling device for pesticide registration testing as described in claim 1, characterized in that: The sampler (1) is provided with several sampling devices (3) on one side. Each sampling device (3) includes a baffle (35). The sampler (1) has several second rectangular holes (31) on one side of its inner wall. The inner walls of the second rectangular holes (31) are provided with grooves (32) on both sides. The baffle (35) is slidably installed in the inner wall of the groove (32). Two second springs (34), wherein the two ends of the second springs (34) are respectively fixedly installed on one side of the baffle (35) and one side of the inner wall of the slide (32); A limiting mechanism (33) is provided between one side of the baffle (35) and one side of the inner wall of one of the slides (32) for limiting and fixing the closed baffle (35).

7. The sampling device for pesticide registration testing as described in claim 6, characterized in that: The limiting mechanism (33) includes an elastic block (332), wherein one side of the elastic block (332) is fixedly installed in the inner wall of one side of the baffle (35), and a card hole (331) is provided on one side of the inner wall of one of the slide grooves (32), and one side of the elastic block (332) is inserted into the inner wall of the card hole (331).

8. The sampling device for pesticide registration testing as described in claim 7, characterized in that: A protrusion (36) is fixedly installed on one side of the baffle (35). The protrusion (36) is located on the side of the baffle (35) away from the sampler (1) and close to the elastic block (332).

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