A soil sampling in-situ detection device

Abstract

The utility model discloses a kind of soil sampling in-situ detection devices, including base, the base top is fixedly installed with support frame, the support frame surface is provided with driving assembly, the support frame is inside and is provided with first screw through driving assembly, the first screw surface is connected with moving plate threadedly, the moving plate top is provided with reciprocating movement component, the moving plate top is provided with toothed plate through reciprocating movement component, the toothed plate surface is engaged and is provided with driven gear, the driven gear inside is fixedly installed with sampling barrel, the sampling barrel inner wall top is fixedly installed with pin, the base top is provided with detection component, the sampling barrel inside is provided with removal component. Rotating action can effectively break the close connection between soil particles, like the rotation of drill bit when drilling, greatly reduce the soil resistance, make sampling process more smooth and fast, more sampling detection operations can be completed in the same time.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling and testing technology, and in particular to an in-situ soil sampling and testing device. Background Technology

[0002] With the continuous development of modern industrial technology, the mining, smelting, processing, and commercial manufacturing of heavy metals are increasing. The discharge of industrial waste and vehicle exhaust has resulted in many heavy metals, such as lead, mercury, and tin, entering the atmosphere, water, and soil, causing serious environmental pollution. The escalating environmental pollution has led to increasing public concern about various soil pollution issues. In particular, heavy metal pollution is non-biodegradable. If fish or shellfish accumulate heavy metals and are consumed by humans, or if heavy metals are absorbed by crops such as rice and wheat and consumed by humans, they accumulate through the food chain and harm human health. The harmful characteristics of heavy metals in environmental pollution primarily refer to heavy metals or metalloids such as lead, cadmium, mercury, arsenic, and chromium. Therefore, timely detection of heavy metal content in soil is of great significance for controlling the entry of heavy metals into the human body.

[0003] Chinese Patent Application Publication No. CN214374776U discloses an integrated device for heavy metal soil sampling and testing, belonging to the field of soil testing technology. It includes a frame, a sampling cylinder, a needle, an electric telescopic rod, a scraper, and a testing device. The sampling cylinder is installed inside the frame, with a first through hole and a second through hole at its upper part. The needle is coaxially installed inside the sampling cylinder, with its upper end fixedly connected to the top of the sampling cylinder. A placement part is provided inside the needle, with its side wall hollowed out. One end of the electric telescopic rod is fixedly connected to the frame, and the other end is fixedly connected to the top surface of the sampling cylinder. The scraper is annular, installed inside the sampling cylinder and slidably fitted onto the needle. A connecting post is provided on the upper surface of the scraper, with its upper end passing through the second through hole and connecting to the frame. The testing device is installed on the frame and includes a metal probe that passes through the first through hole and is installed in the placement part. Although the above-mentioned device can achieve integrated sampling and detection of heavy metals in soil, the sampling tube and metal probe only move in a single vertical linear motion during downward movement, lacking rotational motion. This results in significant resistance when entering the soil, especially in hard and dense soils such as clay and compacted soils. The sampling tube and metal probe often have difficulty inserting into the soil smoothly, which may significantly prolong the sampling and detection time and reduce the working speed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an in-situ soil sampling and testing device to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A soil sampling in-situ detection device includes a base, a support frame fixedly mounted on the top of the base, a driving assembly on the surface of the support frame, a first screw mounted inside the support frame via the driving assembly, the first screw being rotatably connected to the support frame, a movable plate threadedly connected to the surface of the first screw, a reciprocating moving assembly on the top of the movable plate, a toothed plate on the top of the movable plate via the reciprocating moving assembly, a driven gear meshing on the surface of the toothed plate, a sampling cylinder fixedly mounted inside the driven gear, the sampling cylinder being rotatably connected to the movable plate, a pin fixedly mounted on the top of the inner wall of the sampling cylinder, a detection assembly on the top of the base, and a removal assembly inside the sampling cylinder.

[0007] Preferably, the drive assembly includes a fixed frame disposed on the surface of the support frame, a first motor is fixedly mounted on the left side of the fixed frame, a rotating shaft is fixedly mounted on the output end of the first motor, a first bevel gear is fixedly mounted on the surface of the rotating shaft, a second bevel gear is meshed on the surface of the first bevel gear, and the second bevel gear is fixedly connected to the first screw.

[0008] Preferably, the reciprocating moving assembly includes a mounting frame disposed on the top of the moving plate, a second motor is fixedly mounted on the front side of the mounting frame, a second screw is fixedly mounted on the output end of the second motor, a moving block is threadedly connected to the surface of the second screw, the moving block is slidably connected to the mounting frame, and the moving block is fixedly connected to the toothed plate.

[0009] Preferably, the detection component includes a detection device disposed on the top of the base, and a metal probe is disposed on the top of the detection device via a wire, the metal probe being fixedly connected to a pin.

[0010] Preferably, the removal component includes an electric push rod disposed at the top of the inner wall of the sampling cylinder, and a scraper is fixedly installed at the output end of the electric push rod. The scraper is slidably connected to both the sampling cylinder and the needle.

[0011] Preferably, the base has a support leg fixedly installed at its bottom, and the number of the support legs is multiple.

[0012] Preferably, the second screw is a reciprocating threaded rod, and the second screw is made of metal.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This in-situ soil sampling and detection device, through the driving component, causes the first screw to rotate, causing the moving plate to move downward. At the same time, through the reciprocating moving component, the toothed plate moves back and forth, causing the driven gear to rotate back and forth. This allows the sampling tube and needle to move downward into the soil while rotating back and forth. The detection component can directly detect the heavy metal content in the sampled soil. This rotational action can effectively break the tight bond between soil particles, similar to the rotation of a drill bit during drilling, greatly reducing the resistance to soil penetration and making the sampling process smoother and faster. More sampling and detection operations can be completed in the same amount of time. Moreover, the reciprocating rotation can more comprehensively disrupt the overall structure of the soil, which is more effective in reducing the resistance of the soil to the sampling device than rotation in one direction, allowing the sampling tube and needle to enter the soil more smoothly. Attached Figure Description

[0014] Figure 1 This is a three-dimensional perspective view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a left sectional view of the present invention;

[0017] Figure 4 This is a partial structural diagram of the present invention.

[0018] In the diagram: 1. Base; 2. Support frame; 3. Fixing frame; 4. First motor; 5. Rotating shaft; 6. First bevel gear; 7. Second bevel gear; 8. First screw; 9. Moving plate; 10. Mounting frame; 11. Second motor; 12. Second screw; 13. Moving block; 14. Gear plate; 15. Driven gear; 16. Sampling cylinder; 17. Needle; 18. Detection device; 19. Metal probe; 20. Electric push rod; 21. Scraper; 22. Support leg. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figure 1-4A soil sampling in-situ testing device includes a base 1, a support frame 2 fixedly mounted on the top of the base 1, a drive assembly on the surface of the support frame 2, and a first screw 8 rotatably connected to the support frame 2 via the drive assembly inside the support frame 2. The drive assembly includes a fixed frame 3 mounted on the surface of the support frame 2, a first motor 4 fixedly mounted on the left side of the fixed frame 3, a rotating shaft 5 fixedly mounted on the output end of the first motor 4, a first bevel gear 6 fixedly mounted on the surface of the rotating shaft 5, and a second bevel gear 7 meshing with the surface of the first bevel gear 6. The second bevel gear 7 is fixedly connected to the first screw 8. The drive assembly facilitates the simultaneous rotation of the two first screws 8, thereby enabling the subsequent moving plate 9 to move up and down more stably. A movable plate 9 is threadedly connected to the surface of the screw 8. A reciprocating moving assembly is provided on the top of the movable plate 9. A toothed plate 14 is provided on the top of the movable plate 9 via the reciprocating moving assembly. A driven gear 15 is meshed on the surface of the toothed plate 14. A sampling cylinder 16 is fixedly installed inside the driven gear 15. The reciprocating moving assembly includes a mounting bracket 10 located on the top of the movable plate 9. A second motor 11 is fixedly installed on the front side of the mounting bracket 10. A second screw 12 is fixedly installed at the output end of the second motor 11. The second screw 12 is a reciprocating threaded rod made of metal. A movable block 13 is threadedly connected to the surface of the second screw 12. The movable block 13 is slidably connected to the mounting bracket 10 and fixedly connected to the toothed plate 14. The reciprocating moving assembly facilitates the movement of the toothed plate 14. The device can move back and forth, facilitating the reciprocating rotation of the subsequent sampling tube 16, thus making it easier for the sampling tube 16 to enter the soil. The sampling tube 16 is rotatably connected to the moving plate 9. A pin 17 is fixedly installed on the top of the inner wall of the sampling tube 16. A detection assembly is provided on the top of the base 1, including a detection device 18 located on the top of the base 1. A metal probe 19 is connected to the top of the detection device 18 via a wire and is fixedly connected to the pin 17, facilitating direct detection of heavy metal content in the soil. A removal assembly is provided inside the sampling tube 16. Multiple support legs 22 are fixedly installed on the bottom of the base 1. This in-situ soil sampling detection device rotates the first screw 8 through a drive assembly. The moving plate 9 moves downwards, while the reciprocating moving component causes the toothed plate 14 to move back and forth, causing the driven gear 15 to rotate back and forth. This allows the sampling tube 16 and the needle 17 to move downwards into the soil while rotating back and forth. The detection component can directly detect the heavy metal content in the sampled soil. This rotational motion can effectively break up the tight bonds between soil particles, similar to the rotation of a drill bit during drilling, greatly reducing the resistance to soil penetration and making the sampling process smoother and faster. More sampling and detection operations can be completed in the same amount of time. Moreover, the reciprocating rotation can more comprehensively disrupt the overall structure of the soil, which is more effective than rotation in one direction in reducing the resistance of the soil to the sampling device, allowing the sampling tube 16 and the needle 17 to enter the soil more smoothly.

[0021] according to Figure 2 As shown, the removal component includes an electric push rod 20 disposed on the top of the inner wall of the sampling tube 16. A scraper 21 is fixedly installed at the output end of the electric push rod 20. The scraper 21 is slidably connected to the sampling tube 16 and the needle 17. After the sampling tube 16 is removed from the soil, the scraper 21 is moved downward by the electric push rod 20 to facilitate the removal of the soil collected in the sampling tube 16.

[0022] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer for control.

[0023] In use: The first motor 4 rotates the shaft 5, causing the first bevel gear 6 to rotate, the second bevel gear 7 to rotate, and the first screw 8 to rotate, causing the moving plate 9 to move downwards. Simultaneously, the second motor 11 rotates the second screw 12, causing the moving block 13 to reciprocate back and forth along the mounting frame 10, causing the toothed plate 14 to reciprocate back and forth, causing the driven gear 15 to reciprocate, causing the sampling cylinder 16 and the needle 17 to reciprocate. As the sampling cylinder 16 and the needle 17 reciprocate and move downwards into the soil, the sampling cylinder 16 samples the soil, while the metal probe 19 inside the needle 17 is inserted into the soil to directly detect the heavy metal content. The detection data is transmitted to the detection device 18. Then, the first motor 4 is reversed and started, which moves the sampling cylinder 16 and the needle 17 upwards to a suitable position. Then, the electric push rod 20 moves the scraper 21 downwards, pushing out the soil collected in the sampling cylinder 16 for collection.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil sampling in-situ detection device, comprising a base (1), characterized in that, A support frame (2) is fixedly installed on the top of the base (1). A drive assembly is provided on the surface of the support frame (2). A first screw (8) is provided inside the support frame (2) through the drive assembly. The first screw (8) is rotatably connected to the support frame (2). A moving plate (9) is threadedly connected to the surface of the first screw (8). A reciprocating moving assembly is provided on the top of the moving plate (9). A toothed plate (14) is provided on the top of the moving plate (9) through the reciprocating moving assembly. A driven gear (15) is meshed on the surface of the toothed plate (14). A sampling cylinder (16) is fixedly installed inside the driven gear (15). The sampling cylinder (16) is rotatably connected to the moving plate (9). A pin (17) is fixedly installed on the top of the inner wall of the sampling cylinder (16). A detection assembly is provided on the top of the base (1). A removal assembly is provided inside the sampling cylinder (16).

2. The soil sampling in-situ detection device according to claim 1, characterized in that, The drive assembly includes a fixed frame (3) disposed on the surface of the support frame (2). A first motor (4) is fixedly installed on the left side of the fixed frame (3). A rotating shaft (5) is fixedly installed at the output end of the first motor (4). A first bevel gear (6) is fixedly installed on the surface of the rotating shaft (5). A second bevel gear (7) is meshed on the surface of the first bevel gear (6). The second bevel gear (7) is fixedly connected to the first screw (8).

3. The soil sampling in-situ detection device according to claim 1, characterized in that, The reciprocating moving assembly includes a mounting bracket (10) disposed on the top of the moving plate (9). A second motor (11) is fixedly mounted on the front side of the mounting bracket (10). A second screw (12) is fixedly mounted on the output end of the second motor (11). A moving block (13) is threadedly connected to the surface of the second screw (12). The moving block (13) is slidably connected to the mounting bracket (10). The moving block (13) is fixedly connected to the toothed plate (14).

4. The soil sampling in-situ detection device according to claim 1, characterized in that, The detection assembly includes a detection device (18) disposed on the top of the base (1), and a metal probe (19) is disposed on the top of the detection device (18) via a wire, and the metal probe (19) is fixedly connected to the pin (17).

5. The soil sampling in-situ detection device according to claim 1, characterized in that, The removal assembly includes an electric push rod (20) disposed on the top of the inner wall of the sampling tube (16). A scraper (21) is fixedly installed at the output end of the electric push rod (20). The scraper (21) is slidably connected to the sampling tube (16) and the needle (17).

6. The soil sampling in-situ detection device according to claim 1, characterized in that, The base (1) has a support leg (22) fixedly installed at its bottom, and there are multiple support legs (22).

7. The soil sampling in-situ detection device according to claim 3, characterized in that, The second screw (12) is a reciprocating threaded rod, and the second screw (12) is made of metal.

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