A sampling device for hydrogeological and environmental exploration under adverse geological conditions

Abstract

This utility model relates to the field of geological exploration technology, specifically to a sampling device for hydrogeological and environmental geological exploration under adverse geological conditions. It includes a base for supporting the exploration and sampling equipment and ensuring its stability during operation; a drive unit mounted above the base, comprising an electric motor or a pressure drive system to provide power to the sampling drill bit assembly, enabling it to perform geological exploration and sampling work; and the sampling drill bit assembly located below the drive unit. This utility model utilizes the hook-shaped portion of the first sampling half-tube and the inclined portion of the second sampling half-tube to achieve a quick limiting function, enhancing the connection stability between the first and second sampling half-tubes. It eliminates the need for laborious and inefficient methods such as manual vibration or hammering to remove sticky soil; instead, by disassembling the sampling drill bit assembly, it can more quickly address soil adhesion or jamming issues, significantly improving the overall sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of geological exploration technology, specifically to a sampling device for hydrogeological and environmental geological exploration under adverse geological conditions. Background Technology

[0002] With the rapid development of society and economy, various engineering construction projects are increasing, and the demand for hydrogeological and environmental geological surveys is also increasing. When conducting hydrogeological and environmental geological surveys, various adverse geological conditions are often encountered, such as weak strata, karst areas, landslides, and debris flow accumulation areas. Therefore, it is necessary to use appropriate drilling techniques or drill bits with geological survey sampling equipment to obtain representative samples, improve the quality and accuracy of the samples, and thus better understand the geological structure and characteristics.

[0003] There are certain drawbacks when using sampling equipment for hydrogeological and environmental exploration under adverse geological conditions: Under adverse geological conditions, the properties of the soil may be more complex, such as high soil viscosity, the presence of stones or roots, etc., which may cause the soil to adhere or get stuck in the sampler and be difficult to remove. The existing removal method is to manually apply vibration or knocking to the sampler to help loosen the soil and make it easier to detach from the sampler. However, it is difficult to remove sticky soil from the sampler and the removal efficiency is low, which increases the intensity of manual labor.

[0004] Therefore, in order to solve the problems mentioned above, this utility model provides a sampling device for hydrogeological and environmental geological exploration under adverse geological conditions. Utility Model Content

[0005] The purpose of this utility model is to provide a hydrogeological and environmental geological exploration and sampling device under adverse geological conditions in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution: a sampling device for hydrogeological and environmental geological exploration under adverse geological conditions, comprising:

[0007] The base is used to support the exploration and sampling equipment;

[0008] The drive unit is mounted on top of the base;

[0009] A sampling drill bit assembly is disposed below the drive device. The sampling drill bit assembly includes a first sampling half-tube and a second sampling half-tube. The longitudinal section of the first sampling half-tube is hook-shaped, and the longitudinal section of the second sampling half-tube is vertical. The bottom of the second sampling half-tube is inclined. The top of the first and second sampling half-tubes is provided with threaded holes. The first and second sampling half-tubes and the connecting tube are threadedly connected.

[0010] The connecting sleeve is threadedly connected to the lower part of the drive unit and located above the sampling drill bit assembly;

[0011] A quick-locking assembly, located between the sampling drill bit assembly and the connecting sleeve, is used for quick connection of the sampling drill bit assembly and the connecting sleeve.

[0012] Furthermore, the curvature of the first sampling half-tube accounts for one-third of the sampling drill bit assembly, and the curvature of the second sampling half-tube accounts for two-thirds of the sampling drill bit assembly.

[0013] Furthermore, the quick-locking assembly includes a first locking disc installed below the connecting cylinder, a second locking disc installed below the first locking disc, a locking seat installed on the outer side of the second sampling half-cylinder, a compression spring rod slidably connected above the locking seat, one end of the compression spring rod slidingly passing through the inner side of the locking seat and having a locking head installed thereon, and a drive block installed at the end of the compression spring rod facing away from the locking head.

[0014] Furthermore, the longitudinal section of both the second locking disc and the locking head is triangular, and a triangular groove is formed between the first locking disc and the second locking disc.

[0015] Furthermore, the inner side of the locking seat is provided with an inclined groove, and the triangular inclined surface of the second locking disc is in close contact with the inner side of the inclined groove.

[0016] Furthermore, a defective disc is connected to the outer side of the locking seat via a slide rail. Limiting blocks are installed at both ends of the defective disc. A drive rod is installed below the drive block in an inclined manner. A drive groove is opened on the inner side of the limiting block, and the drive rod is slidably connected inside the drive groove.

[0017] Furthermore, the second sampling half-tube is equipped with three limiting rods on the inclined part, and the first sampling half-tube is provided with three limiting holes on the hook-shaped part that are adapted to the limiting rods.

[0018] The beneficial effects of this utility model are as follows:

[0019] This invention utilizes the hook-shaped portion of the first sampling half-tube and the inclined portion of the second sampling half-tube to achieve a quick limiting function, thereby enhancing the connection stability between the first and second sampling half-tubes. It eliminates the need for laborious and inefficient methods such as manual vibration or hammering to remove sticky soil. Instead, by disassembling the sampling drill assembly, it can more quickly address the problem of soil adhesion or jamming, significantly improving the overall sampling efficiency.

[0020] Meanwhile, when the first sampling half-tube and the second sampling half-tube separate, the first sampling half-tube will form a larger opening, which allows the sampled soil to be exposed to the outside to a greater extent, reducing the contact area between the soil and the inner wall of the sampler, thereby reducing the adhesion between the soil and the inner wall and facilitating rapid removal later. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the first and second sampling half-tubes of this utility model.

[0023] Figure 3 This is an exploded view of the first and second sampling half-tubes of this utility model.

[0024] Figure 4 This is a schematic diagram of the quick-locking component of this utility model;

[0025] Figure 5 This is a cross-sectional view of the connection between the locking seat and the locking head in this utility model.

[0026] Figure 6 This is for Figure 4 A magnified view of part A in the image;

[0027] Figure 7 This is for Figure 3 A magnified view of part B in the image.

[0028] Reference numerals: 1. Base; 12. Drive device; 13. Sampling drill bit assembly; 131. First sampling half-tube; 132. Second sampling half-tube; 14. Connecting tube; 2. Quick locking assembly; 21. First locking disc; 22. Second locking disc; 23. Locking seat; 24. Compression spring rod; 25. Locking head; 26. Drive block; 27. Damaged disc; 28. Limiting block; 29. ​​Drive rod; 211. Limiting rod; 212. Limiting hole. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0030] like Figure 1-3As shown, a hydrogeological and environmental geological exploration and sampling device under adverse geological conditions includes a base 1 for supporting the exploration and sampling device and ensuring its stability during operation; a drive unit 12 mounted above the base 1, which includes an electric motor or a hydraulic drive system to provide power to a sampling drill bit assembly 13, enabling it to perform geological exploration and sampling work; and a sampling drill bit assembly 13 located below the drive unit 12, which includes a first sampling half-tube 13. 1. The first sampling half-tube 131 has a hook-shaped longitudinal section, and the second sampling half-tube 132 has a vertical longitudinal section with an inclined bottom. The top of the first sampling half-tube 131 and the second sampling half-tube 132 are provided with threaded holes. The first sampling half-tube 131, the second sampling half-tube 132 and the connecting tube 14 are threadedly connected. The connecting tube 14 is threadedly connected below the driving device 12 and above the sampling drill bit assembly 13.

[0031] It should be noted that when it is necessary to quickly remove the soil inside the sampling drill bit assembly 13, the threads of the sampling drill bit assembly 13 are first removed from the connecting cylinder 14, allowing the sampling drill bit assembly 13 to be quickly removed from the drive device 12. Then, by placing the midpoint of the first sampling half-tube 131 towards the ground and the second sampling half-tube 132 facing upwards, the inclined part on the second sampling half-tube 132 disengages from the hook-shaped interior of the first sampling half-tube 131. At this time, the entire soil inside the first sampling half-tube 131 can be safely removed. This utility model can play a quick limiting role through the hook-shaped part of the first sampling half-tube 131 and the inclined part of the second sampling half-tube 132, enhancing the connection stability of the first sampling half-tube 131 and the second sampling half-tube 132. It eliminates the need to remove sticky soil by manually applying vibration or knocking, which is laborious and inefficient. Instead, by disassembling the sampling drill bit assembly 13, the problem of soil adhesion or jamming can be dealt with more quickly, significantly improving the overall sampling efficiency.

[0032] like Figure 3 As shown, the arc of the first sampling half-tube 131 accounts for one-third of the arc of the sampling drill bit assembly 13, and the arc of the second sampling half-tube 132 accounts for two-thirds of the arc of the sampling drill bit assembly 13.

[0033] It should be noted that the second sampling half-tube 132 occupies two-thirds of the arc. When the first sampling half-tube 131 and the second sampling half-tube 132 are separated, the first sampling half-tube 131 will form a larger opening. This allows the sampled soil to be exposed to the outside to a greater extent, reducing the contact area between the soil and the inner wall of the sampler, thereby reducing the adhesion between the soil and the inner wall and facilitating quick removal later.

[0034] like Figure 3-6As shown, the quick-locking assembly 2 is disposed between the sampling drill bit assembly 13 and the connecting cylinder 14 for quick connection of the sampling drill bit assembly 13 and the connecting cylinder 14. The quick-locking assembly 2 includes a first locking disc 21 installed below the connecting cylinder 14, a second locking disc 22 installed below the first locking disc 21, a locking seat 23 installed on the outer side of the second sampling half-cylinder 132, a compression spring rod 24 slidably connected above the locking seat 23, one end of the compression spring rod 24 slidably passes through the inner side of the locking seat 23 and is fitted with a locking head 25, the locking head 25 is an arc-shaped structure, the locking seat 23 has a telescopic groove for the locking head 25 inside, and a drive block 26 is installed on the end of the compression spring rod 24 facing away from the locking head 25.

[0035] It should be noted that during the threaded connection of the first sampling half-tube 131 and the second sampling half-tube 132 via the connecting tube 14, the first locking disc 21 and the second locking disc 22 on the connecting tube 14 will move downward along the inside of the locking seat 23 on the second sampling half-tube 132. Then, by releasing the spring potential energy of the compressed spring rod 24, the locking head 25 will be tightly pressed against the second locking disc 22, preventing the connecting tube 14 from loosening from the sampling drill bit assembly 13 during the drilling process. This ensures that the connection between the connecting tube 14 and the sampling drill bit assembly 13 is firm and reliable during drilling operations, preventing loosening due to vibration, torsion, or other forces during operation. At the same time, it also facilitates the quick disassembly and installation of the first sampling half-tube 131 and the second sampling half-tube 132, which facilitates rapid soil sampling and improves efficiency.

[0036] like Figures 5-6 As shown, the longitudinal sections of the second locking disc 22 and the locking head 25 are both triangular, and a triangular groove is provided between the first locking disc 21 and the second locking disc 22.

[0037] It should be noted that by setting the longitudinal sections of the second locking disc 22 and the locking head 25 to be triangular, it is beneficial that when the second locking disc 22 on the connecting cylinder 14 rotates along the thread on the second sampling half cylinder 132, the triangular inclined surface of the second locking disc 22 can contact the triangular inclined surface of the locking head 25 and exert a squeezing effect on the locking head 25. At this time, the compression spring rod 24 drives the locking head 25 to extend and retract along the telescopic groove inside the locking seat 23. Afterwards, when the inclined surfaces of the second locking disc 22 and the locking head 25 are completely separated, the locking head 25 extends out of the top of the second locking disc 22 through the spring potential energy of the compression spring rod 24 and automatically achieves the purpose of locking the second locking disc 22.

[0038] By setting a triangular groove, the limits of the second locking disc 22 and the locking head 25 can be increased, while improving the locking effect.

[0039] like Figure 5As shown, the inner side of the locking seat 23 is provided with an inclined groove, and the triangular inclined surface of the second locking disc 22 is in close contact with the inner side of the inclined groove.

[0040] It should be noted that when the second locking disc 22 moves along the inside of the locking seat 23, the inclined surface of the second locking disc 22 can exert a squeezing effect inside the inclined groove of the locking seat 23. At this time, the locking seat 23 will drive the second sampling half-tube 132 to squeeze along the hook-shaped part inside the first sampling half-tube 131, thereby increasing the stability between the first sampling half-tube 131 and the second sampling half-tube 132.

[0041] like Figures 3-5 As shown, a defective disc 27 is connected to the outer side of the locking seat 23 via a slide rail. The defective disc 27 has multiple finger holes to facilitate rotation by the operator. Limiting blocks 28 are installed at the left and right ends of the defective disc 27. A drive rod 29 is installed at an angle below the drive block 26. A drive groove is provided on the inner side of the limiting block 28, and the drive rod 29 is slidably connected inside the drive groove.

[0042] It should be noted that when the damaged disc 27 rotates along the locking seat 23, it drives the two connected limit blocks 28 to rotate. At this time, the drive rod 29 on the drive block 26, driven by the limit blocks 28, drives the compression spring rod 24 and the locking head 25 to disengage along the second locking disc 22. By setting the damaged disc 27, the limit blocks 28 and the drive rod 29 to cooperate with each other, the unlocking efficiency of the second locking disc 22 can be further improved.

[0043] like Figure 3 and Figure 7 As shown, the second sampling half-tube 132 is equipped with three limiting rods 211 on the inclined part, and the first sampling half-tube 131 is provided with three limiting holes 212 that are adapted to the limiting rods 211 on the hook-shaped part.

[0044] It should be noted that the three limiting rods 211 and the corresponding three limiting holes 212 cooperate with each other to ensure that the first sampling half-tube 131 and the second sampling half-tube 132 are accurately aligned during assembly, avoiding deviations or misalignments, thereby enhancing the stability of the connection. At the same time, under the strong vibration and torsional force generated during the operation of the drilling rig, the cooperation of the limiting rods 211 and the limiting holes 212 can prevent the two half-tubes from undergoing relative displacement or torsion, maintaining the integrity of the sampling drill bit assembly.

[0045] The working principle and usage process of this utility model are as follows: When it is necessary to quickly remove the soil inside the sampling drill bit assembly 13, firstly, the threads of the sampling drill bit assembly 13 are removed from the connecting cylinder 14, allowing the sampling drill bit assembly 13 to be quickly removed from the driving device 12. Then, by placing the midpoint of the first sampling half-tube 131 towards the ground and the second sampling half-tube 132 facing upwards, the inclined part of the second sampling half-tube 132 disengages from the hook-shaped interior of the first sampling half-tube 131. At this time, the entire soil inside the first sampling half-tube 131 will be safely removed. The second sampling half-tube 132 occupies two-thirds of the arc. When the first sampling half-tube 131 and the second sampling half-tube 132 are separated, the first sampling half-tube 131 will form a larger opening, which allows the sampled soil to be sampled to a greater extent. Exposed to the outside, the contact area between the soil and the inner wall of the sampler is reduced. During the threaded connection of the first sampling half-tube 131 and the second sampling half-tube 132 via the connecting tube 14, the first locking disc 21 and the second locking disc 22 on the connecting tube 14 will move downward along the inside of the locking seat 23 on the second sampling half-tube 132. Then, by releasing the spring potential energy of the compressed spring rod 24, the locking head 25 will be tightly pressed against the second locking disc 22, preventing the connecting tube 14 from loosening from the sampling drill bit assembly 13 during drilling. This ensures that the connection between the connecting tube 14 and the sampling drill bit assembly 13 is firm and reliable during drilling operations, preventing loosening due to vibration, torsion, or other forces during operation. At the same time, it also facilitates quick disassembly and installation of the first sampling half-tube 131 and the second sampling half-tube 132.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sampling device for hydrogeological and environmental geological exploration under adverse geological conditions, characterized in that, The base (1) is used to support the exploration and sampling equipment; A drive unit (12) is mounted above the base (1); A sampling drill bit assembly (13) is disposed below the drive device (12). The sampling drill bit assembly (13) includes a first sampling half-tube (131) and a second sampling half-tube (132). The longitudinal section of the first sampling half-tube (131) is hook-shaped, and the longitudinal section of the second sampling half-tube (132) is vertical. Its bottom is inclined. The top of the first sampling half-tube (131) and the second sampling half-tube (132) is provided with threaded holes. The first sampling half-tube (131), the second sampling half-tube (132), and the connecting tube (14) are threadedly connected. The connecting sleeve (14) is threadedly connected to the lower part of the drive unit (12) and located above the sampling drill bit assembly (13); A quick-locking assembly (2) is disposed between the sampling drill bit assembly (13) and the connecting cylinder (14) for quick connection of the sampling drill bit assembly (13) and the connecting cylinder (14).

2. The ecological geological survey sampling device for hydraulic circle in adverse geological conditions according to claim 1, characterized in that, The arc of the first sampling half-tube (131) accounts for one-third of the arc of the sampling drill bit assembly (13), and the arc of the second sampling half-tube (132) accounts for two-thirds of the arc of the sampling drill bit assembly (13).

3. The ecological geological survey sampling device for hydraulic circle in adverse geological conditions according to claim 1, characterized in that, The quick-locking assembly (2) includes a first locking disc (21) installed below the connecting cylinder (14), a second locking disc (22) installed below the first locking disc (21), a locking seat (23) installed on the outside of the second sampling half cylinder (132), a compression spring rod (24) slidably connected above the locking seat (23), one end of the compression spring rod (24) slidably passes through the inside of the locking seat (23) and is fitted with a locking head (25), and a drive block (26) is installed on the end of the compression spring rod (24) facing away from the locking head (25).

4. The ecological geological survey sampling device for hydraulic circle in adverse geological conditions according to claim 3, characterized in that, The longitudinal section of the second locking disc (22) and the locking head (25) is triangular, and a triangular groove is provided between the first locking disc (21) and the second locking disc (22).

5. The ecological geological survey sampling device for hydraulic circle in adverse geological conditions according to claim 3, characterized in that, The inner side of the locking seat (23) is provided with an inclined groove, and the triangular inclined surface of the second locking disc (22) is in close contact with the inner side of the inclined groove.

6. The ecological geological survey sampling device for hydraulic circle in adverse geological conditions according to claim 5, characterized in that, The outer side of the locking seat (23) is connected to the defective disc (27) via a slide rail. Limiting blocks (28) are installed at both ends of the defective disc (27). A drive rod (29) is installed at an angle below the drive block (26). A drive groove is opened on the inner side of the limiting block (28), and the drive rod (29) is slidably connected inside the drive groove.

7. The ecological geological survey sampling device for hydraulic circle in adverse geological conditions according to claim 1, characterized in that, The second sampling half-tube (132) is equipped with three limiting rods (211) on the inclined part, and the first sampling half-tube (131) is provided with three limiting holes (212) on the hook-shaped part that are adapted to the limiting rods (211).

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