A soil stratification sampling device for geological surveying

Abstract

This invention relates to a soil stratification sampling device for geological exploration, comprising a hydraulic lifting device, a power box mounted on the movable end of the hydraulic lifting device, and a sampling drill rod detachably mounted on the power output end of the power box. The sampling drill rod comprises multiple segments of spliced ​​sampling rods, each with a through hole and at least one receiving hole perpendicular to the through hole. A mating interface is provided at the bottom of the through hole. Internal threads are provided at the opening of the mating interface and at both ends of the through hole. A sampling unit is detachably mounted inside the sampling rod, comprising a partial sampling structure matching the receiving hole or an integral sampling structure installed inside the through hole. A drilling unit is detachably connected to the bottom of the sampling drill rod, achieving high efficiency and flexibility in soil stratification sampling in mineral geological exploration, and allowing switching between the partial sampling structure and the integral sampling structure installed inside the sampling rod.

Description

Technical Field

[0001] This invention relates to a soil stratification sampling device for geological surveying, and more particularly to a soil stratification sampling device for geological surveying applied in the field of soil sampling devices. Background Technology

[0002] Existing soil stratification sampling devices for mineral geological exploration mainly consist of drilling equipment and sampling tools. Drilling equipment, such as rotary drilling rigs, percussion drilling rigs, and auger drilling rigs, can penetrate to different depths underground to obtain soil samples. Sampling tools include sampling tubes, sampling buckets, and sampling drill bits, which can extract continuous soil or core samples from the borehole. These devices are typically equipped with positioning and depth measurement systems to ensure sample accuracy and the integrity of stratification information. Some existing equipment also integrates automated sampling and sample preservation systems to reduce human interference and improve sampling efficiency. In addition, some specially designed sampling devices can adapt to different geological conditions, such as loose soil layers, hard rock layers, or aquifers, ensuring high-quality soil samples can be obtained under various environments.

[0003] Chinese patent CN117888815B discloses a geological stratification sampling device for geological exploration. This invention uses a pipe assembly structure with a top pipe and a bottom pipe, along with several connecting pipes, to form a long pipe. The appropriate number of connecting pipes can be connected according to the required stratification sampling depth, replacing the traditional integrated installation. This makes it easy to disassemble and carry, and also facilitates the cleaning of the collection tank of the pipe body, avoiding soil residue from affecting the next sampling result.

[0004] Chinese patent CN109580276B discloses a soil stratification sampling and preservation device for geological exploration. The device allows for easy assembly and disassembly of the support column and the upper plate frame, facilitating the packaging and transportation of the device. Furthermore, the device is equipped with three sets of collection boxes, in which soil from different layers inside the hollow cylindrical rod falls into the collection boxes, enabling stratified soil sampling.

[0005] Existing soil sampling devices for mineral geological exploration suffer from limited sampling modes and insufficient equipment flexibility. They are unable to perform overall stratified sampling or multi-level single-point sampling at various depths in a region, depending on the application scenario or requirements. This hinders mineral geological exploration personnel from accurately assessing geological conditions. To address this issue, a new soil stratification sampling device for mineral geological exploration is needed, aiming to improve the diversity of sampling modes and the flexibility of the equipment to meet different application scenarios and needs. Summary of the Invention

[0006] The technical problem that this invention aims to solve in view of the above-mentioned prior art is that existing soil sampling devices for mineral geological exploration have a single sampling mode and insufficient equipment flexibility, and cannot perform overall stratified sampling or multi-layer single-point sampling of soil at various depths in a region according to the usage scenario or usage requirements.

[0007] To address the aforementioned problems, this invention provides a soil stratification sampling device for geological surveys, comprising a hydraulic lifting device, a power box mounted on the movable end of the hydraulic lifting device, a sampling drill rod detachably mounted on the power output end of the power box, the sampling drill rod comprising multiple segments of spliced ​​sampling rods, a through hole formed on the sampling rod, at least one receiving hole perpendicular to the through hole formed on the sampling rod, a docking interface formed at the bottom end of the through hole; internal threads are formed at the opening of the docking interface and at both ends of the through hole;

[0008] A sampling unit is detachably installed inside the sampling rod. The sampling unit includes a local sampling structure that matches the receiving hole or an overall sampling structure installed in the through hole.

[0009] The local sampling structure includes a sampling box that can rotate within a through hole. A shaft is inserted through the middle of the sampling box to drive its rotation. The shaft has a rectangular cross-section. Both the upper and lower sides of the shaft are provided with annular docking blocks for threaded connection with adjacent sampling rods. A bidirectional docking post with a limit sliding is inserted into the middle of the annular docking block. Both the upper and lower ends of the bidirectional docking post are provided with locking holes that match the shaft.

[0010] The overall sampling structure includes a protective cylinder that matches the length of the through hole, a sampling cylinder inserted inside the protective cylinder, and a limit cap connected to the top of the sampling cylinder; the bottom of the sampling drill rod is detachably connected to a soil drilling unit.

[0011] As a further supplement to this application, when the limiting cover is connected to the docking interface, a silicone sealing gasket is placed inside the docking interface.

[0012] As a further supplement to this application, the soil drilling unit includes one of a soil drilling shovel that matches the overall sampling structure and a drill bit that matches the local sampling structure. The soil drilling shovel has a soil sampling hole in the middle that matches the outer diameter of the sampling cylinder, and the drill bit has a locking post in the middle that matches the locking hole.

[0013] As a further supplement to this application, the power box includes an electric motor connected to the movable end of the hydraulic lifting device. Inside the power box, there is a drive wheel and a transmission wheel connected by a transmission belt. The drive wheel is connected to the power output end of the electric motor. The bottom end of the transmission wheel is fixedly connected with a threaded mating cover that matches both the annular mating block and the protective cylinder.

[0014] As a further supplement to this application, a rod that penetrates the power box is rotatably inserted into the transmission wheel, and the rod is engaged with a bidirectional docking post on the sampling rod that connects to the transmission wheel.

[0015] As a further supplement to this application, both the protective cylinder and the annular connecting block include a partition ring that matches the outer diameter of the sampling rod. The upper and lower ends of the partition ring are respectively provided with an upper connector and a lower connector, and both the upper and lower connectors are provided with an external thread that matches the internal thread.

[0016] As a further supplement to this application, when the sampling unit is set as an integral sampling structure, a protective cover is snapped into the opening of the receiving hole, a locking post is fixedly connected to the protective cover, and a locking groove matching the locking post is opened on the outer wall of the protective cylinder.

[0017] As a further supplement to this application, it also includes an auxiliary sampling system, which includes a data acquisition module, a control module, a data processing module and a data storage module;

[0018] The data acquisition module is used to collect relevant monitoring data of the equipment during the sampling process, and the collected monitoring data is transmitted to the data acquisition module in real time.

[0019] The control module is used to receive instructions sent by the data processing module and control the relevant equipment according to the preset program.

[0020] The data processing module is used to further process and analyze the data transmitted by the data acquisition module, and the data processing module feeds back the processing results to the control module.

[0021] The data storage module is used to store the data transmitted by the data acquisition module and the data processing module.

[0022] In summary, this solution achieves high efficiency and flexibility in soil stratification sampling during mineral geological exploration. By switching between local and overall sampling structures installed inside the sampling rod, rapid multi-point sampling or continuous stratified sampling can be achieved, easily meeting the sampling needs under different geological conditions. Attached Figure Description

[0023] Figure 1 This is a perspective view of the first embodiment of this application;

[0024] Figure 2 This is a partial cross-sectional view of the first embodiment of this application;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure at point A;

[0026] Figure 4 A partial exploded view of the sampling rod equipped with an integral sampling structure according to the first embodiment of this application;

[0027] Figure 5 A perspective view of the sampling rod portion equipped with a local sampling structure according to the second embodiment of this application;

[0028] Figure 6 A cross-sectional view of the sampling rod portion equipped with a local sampling structure according to the second embodiment of this application;

[0029] Figure 7 for Figure 6 Schematic diagram of the structure at point B;

[0030] Figure 8 This is a system block diagram of the third embodiment of this application.

[0031] Explanation of the labels in the diagram:

[0032] 1. Hydraulic lifting device; 2. Power box; 21. Threaded mating cover; 22. Insert rod; 3. Sampling rod; 4. Local sampling structure; 41. Sampling box; 42. Shaft column; 43. Annular mating block; 44. Bidirectional mating column; 5. Overall sampling structure; 51. Protective cylinder; 52. Sampling cylinder; 53. Limiting cover; 6. Protective cover; 7. Damping sealing layer. Detailed Implementation

[0033] The three embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0034] Implementation method 1:

[0035] Figures 1-4 The diagram shows a soil stratification sampling device for geological exploration, comprising a hydraulic lifting device 1, a power box 2 mounted on the movable end of the hydraulic lifting device 1, a sampling drill rod detachably mounted on the power output end of the power box 2, the sampling drill rod comprising multiple spliced ​​sampling rods 3, a through hole being formed on the sampling rod 3, at least one receiving hole perpendicular to the through hole being formed on the sampling rod 3, a docking interface being formed at the bottom end of the through hole; internal threads are formed at the opening of the docking interface and at both the upper and lower ends of the through hole;

[0036] The power box 2 includes an electric motor connected to the movable end of the hydraulic lifting device 1. Inside the power box 2, there are a drive wheel and a transmission wheel connected by a transmission belt. The drive wheel is connected to the power output end of the electric motor. The bottom end of the transmission wheel is fixedly connected to a threaded docking cover 21 that matches both the annular docking block 43 and the protective cylinder 51. The inner end of the threaded docking cover 21 is provided with an internal thread. The threaded docking cover 21 can be threadedly connected to the external threads on the protective cylinder 51 and the annular docking block 43.

[0037] The bottom end of the sampling drill rod is detachably connected to a soil drilling unit, and the top end of the soil drilling unit is connected to a docking connector that matches the docking interface.

[0038] A sampling unit is detachably installed inside the sampling rod 3. The sampling unit can be configured as a local sampling structure 4 that matches the receiving hole or an integral sampling structure 5 installed in the through hole.

[0039] A rod 22, which passes through the power box 2, is rotatably inserted into the transmission wheel. The rod 22 is engaged with the sampling rod 3, which is connected to the transmission wheel, by a bidirectional docking post 44. The rod 22 rotates relative to both the transmission wheel and the power box 2. A handle can be installed at the top of the rod 22 for manual rotation. Alternatively, a stepper motor can be installed on the power box 2 by those skilled in the art, and a transmission structure can be installed between the rod 22 and the stepper motor to drive the rod 22 to rotate, so that sampling can be automated. When the sampling unit is set as an integrated sampling structure 5, the rod 22 does not contact the integrated sampling structure 5.

[0040] In this embodiment, the sampling unit is set as an overall sampling structure 5;

[0041] The overall sampling structure 5 includes a protective cylinder 51 that matches the length of the through hole. A sampling cylinder 52 is inserted into the protective cylinder 51. A limit cap 53 is connected to the top of the sampling cylinder 52. When the limit cap 53 is connected to the docking interface, a silicone sealing gasket is placed inside the docking interface.

[0042] The protective cylinder 51 includes a partition ring that matches the outer diameter of the sampling rod 3. The upper and lower ends of the partition ring are respectively provided with an upper connector and a lower connector, and both the upper and lower connectors are provided with external threads that match the internal threads. The upper connector of the protective cylinder 51 is threadedly connected to the internal thread in the bottom mating interface of the external sampling rod 3 through hole to which it is spliced, and the lower connector is threadedly connected to the internal thread at the bottom of the through hole of the sampling rod 3 into which it is inserted.

[0043] When the sampling unit is set as an integral sampling structure 5, a protective cover 6 is snapped into the opening of the receiving hole, a locking post is fixedly connected to the protective cover 6, and a locking groove matching the locking post is opened on the outer wall of the protective cylinder 51.

[0044] The bottom end of the sampling drill rod is detachably connected to a soil drilling unit, which is a soil drilling shovel that matches the overall sampling structure 5; the top end of the soil drilling shovel is connected to a docking joint that matches the docking interface, and a soil sampling hole matching the outer diameter of the sampling cylinder 52 is opened in the middle of the docking joint of the soil drilling shovel.

[0045] In this embodiment, the sampling rod 3 performs layered sampling through the overall sampling structure 5. The specific usage method is as follows: First, connect a section of the sampling rod 3 with the overall sampling structure 5 to the power output end of the power box 2. Through the action of the hydraulic lifting device 1 and the power box 2, the power box 2 assists in driving the sampling rod 3 to rotate, so that the soil shovel plays the role of drilling and delivering soil. The hydraulic lifting device 1 is used to press the sampling rod 3 down into the soil.

[0046] Insert the sampling rod 3 into the soil at a set distance until the top part of the sampling rod 3 is exposed on the soil. During the process of inserting the sampling rod 3 into the soil, the soil enters the sampling tube 52 through the soil sampling hole on the soil drill shovel.

[0047] Then the power box 2 is separated from the sampling rod 3; then the sampling tube 52 is pulled out from the protective tube 51 by the limiting cover 53; at this time, the area of ​​the uppermost soil layer is completed;

[0048] Then, another sampling rod 3 with an integral sampling structure 5 is spliced ​​onto the upper part of the sampling rod 3 inserted into the soil. That is, the protective tube 51 with the sampling tube 52 removed is threadedly connected to the bottom of the sampling rod 3 with the integral sampling structure 5. After installation, the power box 2 is combined with the sampling rod 3. The sampling rod 3 is then driven to insert into the soil, so that the soil at the next depth passes through the protective tube 51 and enters the sampling tube 52 inside the spliced ​​sampling rod 3, thus achieving sampling of the next level of soil layer.

[0049] By repeating the above steps multiple times, it is possible to achieve overall sampling of multiple soil layers.

[0050] This embodiment achieves continuous stratified sampling of the soil by sequentially inserting the sampling rod 3, which is equipped with the overall sampling structure 5, into the soil in stages. The soil in each layer of the sampling area is collected by multiple sampling tubes 52 from top to bottom.

[0051] The second implementation method:

[0052] Components that are the same as or corresponding to those in the first embodiment are referred to using the same reference numerals as those in the first embodiment. For simplicity, only the differences between the second and first embodiments are described below. The difference between the second and first embodiments is as follows:

[0053] Figures 5-7 As shown, in this embodiment, the sampling unit is configured as a local sampling structure 4;

[0054] The local sampling structure 4 includes a sampling box 41 that can rotate within a through hole. A shaft 42 for driving its rotation is inserted through the middle of the sampling box 41. The shaft 42 has a rectangular cross-section. Both the upper and lower sides of the shaft 42 are provided with annular docking blocks 43 for threaded connection with adjacent sampling rods 3. A bidirectional docking post 44 with a limit sliding is inserted into the middle of the annular docking block 43. Both the upper and lower ends of the bidirectional docking post 44 are provided with locking holes that match the shaft 42. The annular docking block 43 and the bidirectional docking post 44 are an integral structure, and the bidirectional docking post 44 and the annular docking block 43 can rotate relative to each other.

[0055] The annular mating block 43 includes a partition ring that matches the outer diameter of the sampling rod 3. The upper and lower ends of the partition ring are respectively provided with an upper connector and a lower connector, and both the upper and lower connectors are provided with external threads that match the internal threads.

[0056] The sampling box 41 has an opening, and a damping sealing layer is laid on the outer wall of the end of the sampling box 41 away from the opening. The damping sealing layer serves to seal the sampling box 41 when it is not in use.

[0057] The bottom end of the sampling drill rod is detachably connected to a soil drilling unit, which is a drill bit that matches the local sampling structure 4. The middle part of the drill bit is connected to a chuck that matches the chuck hole.

[0058] In this embodiment, a multi-segmented sampling rod 3 is inserted into the soil, and multiple local sampling structures 4 are used to perform simultaneous sampling at multiple points.

[0059] The process of installing the local sampling structure 4 in the sampling rod 3 in this embodiment is as follows: First, a ring-shaped docking block 43 is installed at the bottom of the sampling rod 3. Then, the sampling box 41 is inserted into the inner through hole of the sampling rod 3 until it matches the position of the receiving hole. Then, the shaft post 42 is inserted so that it passes through the sampling box 41 and engages with the bidirectional docking post 44 on the ring-shaped docking block 43. Then, another ring-shaped docking block 43 is installed at the top of the sampling rod 3 so that the bidirectional docking post 44 on it engages with the upper end of the shaft post 42.

[0060] Then, a suitable number of sampling rods 3 are installed on the sampling rod 3 in sequence in the above manner to splice them into an integral sampling drill rod. During splicing, the annular mating block 43 is threaded to the top of the through hole of one sampling rod 3 through the lower connector and threaded to the mating interface of another sampling rod 3 through the upper connector.

[0061] Install the spliced ​​sampling rod 3 at the output end of the power box 2, so that the power box 2 drives the sampling drill rod to rotate as a whole, so that the drill bit at the bottom of the sampling drill rod rotates to drill the soil during the descent of the power box 2 and the sampling drill rod.

[0062] After the sampling drill rod is inserted into the soil, the rod 22 is rotated, which causes the rod 22 to drive multiple shafts 42 to rotate, thereby matching the opening of the sampling box 41 with the receiving hole. At this time, the loose soil outside enters the sampling box 41. During the sampling process, the sampling drill rod can be driven to move up and down slightly to loosen the soil in the sampling area.

[0063] After sampling is completed, rotate the insertion rod 22 to reset it, and then drive the power box 2 to rise to complete the sampling work.

[0064] This embodiment connects multiple sampling rods 3 into a whole and inserts them into the soil. Once the designated position is reached, the sampling box 41 is opened to perform multi-point unified sampling. Compared with the first embodiment, this embodiment is simple to operate, convenient and quick to sample, and is suitable for rapid sampling work.

[0065] The third implementation method:

[0066] Figure 8 As shown, it also includes an auxiliary sampling system, which comprises a data acquisition module, a control module, a data processing module, and a data storage module;

[0067] The data acquisition module is used to collect relevant monitoring data of the equipment during the sampling process. The monitoring data includes, but is not limited to, information such as the insertion depth of the rod in the sampling area and the sampling position. Existing sensors and other equipment selected by those skilled in the art are installed on the sampling equipment of this solution to collect data. The collected monitoring data is transmitted to the data acquisition module in real time.

[0068] The control module receives instructions from the data processing module and controls the relevant equipment according to a preset program. The control module is connected to the power box 2, hydraulic lifting device 1, and other actuators to realize the rotation and lifting of the sampling drill rod, ensuring the smooth progress of the sampling process.

[0069] The data processing module is used to further process and analyze the data transmitted by the data acquisition module. For example, it can determine whether the sampling drill rod has reached the set sampling position based on the collected monitoring data. The data processing module feeds back the processing results to the control module so that the control module can adjust the sampling operation according to the processing results.

[0070] The data storage module is used to store the data transmitted by the data acquisition module and the data processing module.

[0071] The various modules of the auxiliary sampling system work together to achieve intelligent sampling of soil stratification sampling devices used in geological surveys.

[0072] In summary, this solution achieves high efficiency and flexibility in soil stratification sampling during mineral geological exploration. By switching between the local sampling structure 4 and the overall sampling structure 5 installed inside the sampling rod, rapid multi-point sampling or stratified continuous sampling can be achieved, which can easily meet the sampling needs under different geological conditions.

[0073] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A soil stratified sampling device for geological survey, comprising a hydraulic lifting device (1), a power box (2) is installed on the movable end of the hydraulic lifting device (1), and a sampling drill rod is detachably installed on the power output end of the power box (2), characterized in that: The sampling drill rod comprises a plurality of spliced sampling rods (3) provided with a through hole and at least one accommodating hole vertically intersecting with the through hole, and a butt joint interface is arranged at the bottom end of the through hole. A sampling unit is detachably installed in the sampling rod (3), and the sampling unit comprises a partial sampling structure (4) matched with the accommodating hole or an integral sampling structure (5) installed in the through hole. The partial sampling structure (4) comprises a sampling box (41) rotatable in the through hole, a shaft column (42) for driving the sampling box (41) to rotate is inserted into the middle part of the sampling box (41), the cross section of the shaft column (42) is rectangular, annular butt joint blocks (43) for threadedly connecting with adjacent sampling rods (3) are arranged on the upper and lower sides of the shaft column (42), a bidirectional butt joint column (44) is inserted into the middle part of the annular butt joint block (43), clamping holes matched with the shaft column (42) are arranged at the upper and lower ends of the bidirectional butt joint column (44), and the bidirectional butt joint column (44) is relatively rotatable with the annular butt joint block (43). The integral sampling structure (5) comprises a protective cylinder (51) matched with the length of the through hole, a sampling cylinder (52) is inserted into the protective cylinder (51), and a limiting cover (53) is connected to the top end of the sampling cylinder (52).

2. A soil stratification sampling device for geological exploration as claimed in claim 1, wherein: The limiting cover (53) is placed with a silica gel sealing gasket when the limiting cover (53) is butt jointed with the butt joint interface.

3. The soil stratification sampling device for geological exploration of claim 1, wherein: The drilling unit comprises one of a soil drilling shovel matched with the integral sampling structure (5) and a drill bit matched with the partial sampling structure (4), a soil drilling hole matched with the outer diameter of the sampling cylinder (52) is arranged in the middle part of the soil drilling shovel, and a clamping column matched with the clamping hole is connected to the middle part of the drill bit.

4. The soil layer sampling device for geological surveying according to claim 1, characterized in that: The power box (2) comprises an electric motor connected with the movable end of the hydraulic lifting device (1), a driving wheel and a transmission wheel connected through a transmission belt are rotatably connected in the power box (2), the driving wheel is connected with the power output end of the electric motor, and a threaded butt joint cover (21) matched with the annular butt joint block (43) and the protective cylinder (51) is fixedly connected to the bottom end of the transmission wheel.

5. A stratified soil sampling device for geological exploration as claimed in claim 4, wherein: An insertion rod (22) penetrating through the power box (2) is rotatably inserted into the transmission wheel, and the bidirectional butt joint column (44) of the sampling rod (3) butt jointed with the transmission wheel is clamped with the insertion rod (22).

6. The soil layer sampling device for geological surveying according to claim 1, characterized in that: The protective cylinder (51) and the annular butt joint block (43) both comprise a partition ring matched with the outer diameter of the sampling rod (3), upper joints and lower joints are arranged at the upper and lower ends of the partition ring respectively, and outer threads matched with the inner threads are arranged on the upper joints and the lower joints.

7. The soil layer sampling device for geological surveying according to claim 1, characterized in that: When the sampling unit is the integral sampling structure (5), a protective cover (6) is clamped at the opening of the accommodating hole, a clamping column is fixedly connected to the protective cover (6), and a clamping groove matched with the clamping column is arranged on the outer wall of the protective cylinder (51).

8. A stratified soil sampling device for geological exploration according to any one of claims 1 to 6, characterized in that: The auxiliary sampling system comprises a data acquisition module, a control module, a data processing module and a data storage module. The data acquisition module is used for acquiring the equipment related monitoring data in the sampling process, and the acquired monitoring data is transmitted to the data acquisition module in real time. The control module is used for receiving the instructions sent by the data processing module and performing control operation on the related equipment according to the preset program. The data processing module is used for further processing and analyzing the data transmitted by the data acquisition module, and the data processing module feeds back the processing result to the control module. The data storage module is used for storing the data transmitted by the data acquisition module and the data processing module.

Images