A sampling drill for investigating and sampling soil pollution at a site.

Abstract

This utility model discloses a sampling drill for investigating and sampling soil environmental pollution at a site. Relating to the field of environmental geology, the drill includes a first housing, with a second housing mounted at one end. A disassembly bolt is rotatably mounted on the upper end of the first housing. First and second connecting threads are fixed to both sides of the first and second housings, respectively. Multiple sets of first sliding grooves are formed on both sides of one end of the first housing, and multiple sets of sliding blocks are fixed to both sides of one end of the second housing. The advantages of this utility model are: it allows the sampling drill to completely extract the rock core, and allows for immediate sampling of the rock core after the first and second housings are removed, facilitating VOCs testing; it also allows for rapid loading and unloading of the first and second housings, facilitating the storage or retrieval of the detachable rock core tube, thus shortening the overall sampling time.

Description

Technical Field

[0001] This utility model relates to the field of environmental geology technology, specifically a sampling drill for investigating and sampling the environmental pollution status of soil at a site. Background Technology

[0002] Environmental geology studies the interaction between human activities and the geological environment, aiming to reveal the impact of the geological environment on human survival and development, and how human activities alter the geological environment and cause environmental problems, thereby proposing scientific management and protection strategies. When sampling for soil environmental pollution at a site, traditional rotary drilling rigs are required. Traditional rotary drilling rigs are widely used in the field of environmental geology and are suitable for sampling strata such as thick fill, soft clay, loose sand, and gravel. They have certain advantages over percussion drilling rigs.

[0003] However, the sampling tools of rotary drilling rigs currently in widespread use are mostly core tubes of various sizes. After sampling, the core tube needs to be removed by pumping or gravity. Pumping uses external water to pressurize and push out the core, but the uncertainty of the external water can easily contaminate the core, and it can also cause deformation in highly compressible soil layers, affecting the in-situ sampling effect. Gravity uses the core tube to fall freely and stop suddenly, using inertia to make the core slide out, which can also easily lead to core deformation, affecting the sampling effect, and is relatively inconvenient. Therefore, we propose a sampling tool for the investigation of soil environmental pollution status at the site. Utility Model Content

[0004] The purpose of this invention is to provide a sampling drill for investigating and sampling the environmental pollution status of soil at a site.

[0005] To address the problems mentioned in the background art, this utility model provides the following technical solution: a sampling drill for investigating and sampling the environmental pollution status of site soil, comprising a first housing, a second housing installed at one end of the first housing, a disassembly bolt rotatably provided at the upper end of the first housing, a first connecting thread and a second connecting thread respectively fixed on both sides of the first housing and the second housing, multiple sets of first sliding grooves opened on both sides of one end of the first housing, multiple sets of sliders fixed on both sides of one end of the second housing, multiple sets of limiting blocks fixed on one side inside the first housing, multiple sets of second sampling windows opened at the other end of the first housing, a collection chamber installed inside the limiting blocks, a pull plate fixed at one end of the collection chamber, a guide plate fixed at the other end of the collection chamber, a detachable core tube slidably installed inside the second housing, multiple sets of first sampling windows opened at one end of the detachable core tube, and a drill bit and a drill rod connector respectively provided on one side of the first connecting thread and the second connecting thread.

[0006] Preferably, the slider is slidably connected to the first housing, the collection chamber is slidably connected to the limiting block, and the collection chamber is slidably connected to the separable core tube.

[0007] Preferably, there are four sliders and four first grooves, and three limiting blocks, three first sampling windows, and three second sampling windows.

[0008] Preferably, a first locking plate and a second locking plate are fixed to the two sides of the top inside the second housing, a first connecting block is fixed to the top inside the first housing, and a second connecting block is fixed to both ends of the top inside the first housing. A toothed plate is provided on one side of the second connecting block at one end, and a first movable plate is provided on one side of the second connecting block at the other end. A second movable plate is fixed to the inner side of both the toothed plate and the first movable plate, and an insert plate is fixed to one side of both the toothed plate and the first movable plate.

[0009] Preferably, the second connecting block is slidably connected to the toothed plate and the first moving plate, respectively, and the insert plate is slidably connected to the first clamping plate and the second clamping plate, respectively.

[0010] Preferably, the toothed plate and the first movable plate are located at the two ends of the gear, and the gear is meshed with the second movable plate.

[0011] Using the above technical solution, the first and second shells are connected by sliding the slider on one side of the second shell into the first groove in the first shell and tightening the disassembly bolt. Then, an appropriate drill bit is selected according to the formation and pollutant enrichment. The drill bit and drill rod connector are then tightened with the first and second connecting threads on both sides of the first and second shells. The drill rod connector is then connected to the drill rod. The drilling rig is started so that the drill bit drills into the formation for sampling. After sampling, the first and second shells are removed, and the disassembly bolt is loosened to remove the connection between the first and second shells. The separable core tube inside the first and second shells is then taken out for testing. By pushing the pull plate, the collection chamber and guide plate can be inserted into the separable core tube to collect part of the core inside the separable core tube. This allows for immediate sampling, preventing volatile organic compounds from being exposed to the air for a long time. The sampling tool can completely extract the core, and the core can be sampled immediately after the first and second shells are removed, facilitating VOCs testing.

[0012] By tightening the disassembly bolts, the disassembly bolts drive the second moving plates on both sides to slide on the second connecting block via gears. When the toothed plates and the first moving plates slide, they will push the two side insert plates away from each other, so that the two side insert plates are inserted into the first and second clamping plates on both sides of the second housing, thereby fixing the first and second housings. Conversely, disassembly allows the sampling drill to quickly load and unload the first and second housings, facilitating the storage or removal of the separable core tube and shortening the overall sampling time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure in an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure between the first housing and the first movable plate in an embodiment of this utility model;

[0015] Figure 3 This is a schematic diagram of the connection structure between the second shell and the second card plate in an embodiment of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure of the disassembly bolt and insert plate in an embodiment of this utility model.

[0017] In the diagram: 1. First housing; 2. Second housing; 3. Removal bolt; 4. First connecting thread; 5. Second connecting thread; 6. First slide groove; 7. Slider; 8. Limiting block; 9. Pull plate; 10. Collection chamber; 11. Guide plate; 12. First sampling window; 13. Second sampling window; 14. Drill bit; 15. Drill rod connector; 16. Separable core tube; 17. First clamping plate; 18. Second clamping plate; 19. First connecting block; 20. Second connecting block; 21. Gear; 22. Tooth plate; 23. First moving plate; 24. Second moving plate; 25. Insert plate. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example

[0019] Please see Figure 1-4This utility model provides a technical solution: a sampling drill for investigating and sampling soil pollution at a site, comprising a first housing 1, a second housing 2 installed at one end of the first housing 1, a disassembly bolt 3 rotatably disposed at the upper end of the first housing 1, a first connecting thread 4 and a second connecting thread 5 respectively fixed on both sides of the first housing 1 and the second housing 2, multiple sets of first sliding grooves 6 opened on both sides of one end of the first housing 1, multiple sets of sliding blocks 7 fixed on both sides of one end of the second housing 2, multiple sets of limiting blocks 8 fixed on one side inside the first housing 1, and multiple sets of second sampling windows 13 opened at the other end of the first housing 1, with a collection chamber installed inside the limiting blocks 8. 10. A pull plate 9 is fixed to one end of the collection chamber 10, and a guide plate 11 is fixed to the other end of the collection chamber 10. A separable core tube 16 is slidably installed inside the second shell 2. Multiple sets of first sampling windows 12 are opened at one end of the separable core tube 16. A drill bit 14 and a drill rod handle 15 are respectively provided on one side of the first connecting thread 4 and the second connecting thread 5. The slider 7 is slidably connected to the first shell 1, the collection chamber 10 is slidably connected to the limiting block 8, and the collection chamber 10 is slidably connected to the separable core tube 16. There are four sliders 7 and four first sliding grooves 6. There are three limiting blocks 8, three first sampling windows 12, and three second sampling windows 13.

[0020] Specifically, when it is necessary to sample the formation, by pulling the pull plate 9, the guide plate 11 and the collection chamber 10 slide out of the separable core tube 16. Then, the separable core tube 16 slides into the first housing 1, and the limiting block 8 passes through the first sampling window 12 to limit the separable core tube 16. Then, the slider 7 on one side of the second housing 2 slides into the first groove 6 in the first housing 1, so that the first housing 1 and the second housing 2 fit together. The disassembly bolt 3 is tightened to connect the first housing 1 and the second housing 2. Then, according to the formation and the enrichment of pollutants, an appropriate drill bit 14 is selected and tightened with the first connecting thread 4 on one side of the first housing 1 and the second housing 2. Then, the drill rod connector 15 is tightened with the second connecting thread 5 on the other side of the first housing 1 and the second housing 2, so that the first housing 1 and the second housing 2 are assembled with the drill bit 14 and the drill rod connector 15, and the first housing 1 and the second housing 2 are fixed. Then, the drill rod connector 15 is connected to the drill rod, and the drilling rig is started. Drill bit 14 drills into the formation to take samples. After sampling, the first housing 1 and the second housing 2 are removed. Then, the drill bit 14 and drill rod connector 15 are loosened, and the disassembly bolt 3 is loosened, so that the connection between the first housing 1 and the second housing 2 is lost. At this time, the separable core tube 16 inside the first housing 1 and the second housing 2 is taken out, and the core inside the separable core tube 16 is taken out for testing. When VOCs samples need to be taken, the pull plate 9 is pushed, so that the pull plate 9 drives the collection chamber 10 and the guide plate 11 to slide inside the separable core tube 16. At this time, when the guide plate 11 slides, it will squeeze part of the core inside the separable core tube 16, so that the core enters the collection chamber 10. Then, the pull plate 9 is pulled, and it stops when the collection chamber 10 drives part of the core to slide out from inside the first housing 1. Then the core is tested, so that the sampling drill can completely take out the core, and the core can be sampled immediately after the first housing 1 and the second housing 2 are taken out, which is convenient for VOCs samples. Example

[0021] Please see Figure 1-4This utility model provides a technical solution: a sampling drill for investigating and sampling the environmental pollution status of site soil. A first clamping plate 17 and a second clamping plate 18 are fixed to the two sides of the top inside the second housing 2, respectively. A first connecting block 19 is fixed to the top inside the first housing 1. Second connecting blocks 20 are fixed to both ends of the top inside the first housing 1. A toothed plate 22 is provided on one side of one end of the second connecting block 20, and a first movable plate 23 is provided on one side of the other end of the second connecting block 20. A second movable plate 24 is fixed to the inner sides of both the toothed plate 22 and the first movable plate 23. An insert plate 25 is fixed to one side of both the toothed plate 22 and the first movable plate 23. The second connecting block 20 is slidably connected to the toothed plate 22 and the first movable plate 23, respectively. The insert plate 25 is slidably connected to the first clamping plate 17 and the second clamping plate 18, respectively. The toothed plate 22 and the first movable plate 23 are located at both ends of a gear 21, and the gear 21 is meshed with the second movable plate 24.

[0022] Specifically, when it is necessary to pre-fix the first housing 1 and the second housing 2, tightening the disassembly bolt 3 causes the disassembly bolt 3 to drive the gear 21 to rotate inside the first housing 1. When the gear 21 rotates, it drives the second moving plates 24 meshing with itself at both ends to move, causing the second moving plates 24 at both ends to push the toothed plate 22 and the first moving plate 23 to slide in the second connecting block 20 respectively. Then, when the toothed plate 22 and the first moving plate 23 slide, they push the insert plates 25 on both sides away from each other. The process stops when the insert plates 25 on both sides are inserted into the first locking plate 17 and the second locking plate 18 on both sides of the second housing 2 respectively. This allows the first housing 1 and the second housing 2 to be pre-fixed. After the detachable core tube 16 inside the first housing 1 and the second housing 2 has been sampled, the disassembly bolt 3 is loosened, and the disassembly bolt 3 drives the second moving plates 24 at both ends to move through the gear 21. The second moving plates 24 at both ends pull the insert plate 25 closer to each other through the toothed plate 22 and the first moving plate 23, so that the insert plate 25 slides out from the first clamping plate 17 and the second clamping plate 18, completing the disassembly. This allows the sampling drill to quickly pre-fix the first housing 1 and the second housing 2, which facilitates the connection of the drill bit 14 and the drill rod connector 15, thereby shortening the overall sampling time.

[0023] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A sampling drill for investigating and sampling soil pollution at a site, comprising a first housing (1), characterized in that: A second housing (2) is installed at one end of the first housing (1). A disassembly bolt (3) is rotatably provided at the upper end of the first housing (1). A first connecting thread (4) and a second connecting thread (5) are respectively fixed on both sides of the first housing (1) and the second housing (2). Multiple sets of first sliding grooves (6) are opened on both sides of one end of the first housing (1). Multiple sets of sliders (7) are fixed on both sides of one end of the second housing (2). Multiple sets of limiting blocks (8) are fixed on one side inside the first housing (1). The other end of the first housing (1) is open Multiple sets of second sampling windows (13) are provided. A collection chamber (10) is installed inside the limiting block (8). A pull plate (9) is fixed at one end of the collection chamber (10). A guide plate (11) is fixed at the other end of the collection chamber (10). A separable core tube (16) is slidably installed inside the second housing (2). Multiple sets of first sampling windows (12) are opened at one end of the separable core tube (16). A drill bit (14) and a drill rod connector (15) are respectively provided on one side of the first connecting thread (4) and the second connecting thread (5).

2. The sampling drill for investigating and sampling soil pollution at a site, as described in claim 1, is characterized in that: The slider (7) is slidably connected to the first housing (1), the collection chamber (10) is slidably connected to the first housing (1), and the collection chamber (10) is slidably connected to the separable core tube (16).

3. A sampling drill for investigating and sampling soil pollution at a site, as described in claim 2, characterized in that: The number of sliders (7) and first grooves (6) are both four, and the number of limiting blocks (8), first sampling windows (12) and second sampling windows (13) are both three.

4. A sampling drill for investigating and sampling soil pollution at a site, as described in claim 1, characterized in that: The second housing (2) has a first card plate (17) and a second card plate (18) fixed on both sides of the top inside. The first housing (1) has a first connecting block (19) fixed on the top inside. The first housing (1) has a second connecting block (20) fixed at both ends of the top inside. A toothed plate (22) is provided on one side of the second connecting block (20) at one end, and a first moving plate (23) is provided on one side of the second connecting block (20) at the other end. A second moving plate (24) is fixed on the inner side of the toothed plate (22) and the first moving plate (23). An insert plate (25) is fixed on one side of the toothed plate (22) and the first moving plate (23).

5. A sampling drill for investigating and sampling soil pollution at a site, as described in claim 4, characterized in that: The second connecting block (20) is slidably connected to the toothed plate (22) and the first moving plate (23) respectively, and the insert plate (25) is slidably connected to the first card plate (17) and the second card plate (18) respectively.

6. A sampling drill for investigating and sampling soil pollution at a site, as described in claim 5, characterized in that: The toothed plate (22) and the first movable plate (23) are located at the two ends of the gear (21), and the gear (21) is meshed with the second movable plate (24).

Images