Mine geological exploration sampler

Abstract

The invention discloses a geological and mineral exploration sampler, which realizes stable support for exploration sites of different terrains through the synergistic effect of a support adjusting mechanism. The adjusting assembly is matched with the hydraulic cylinder, the sampling angle and depth can be flexibly adjusted, and the sampling requirements of stratums with different depths are effectively met; the sampling mechanism adopts a plurality of groups of driving machines and a drill rod to operate in parallel, a plurality of sampling grooves are arranged, so that the single sampling efficiency is improved, the situations of scattering and mixed pollution of samples in loose or wet and soft stratums can be reduced, the structural strength of the drill rod is enhanced by additionally arranging a reinforcing plate, and the problem of abrasion of a drilling tool during hard rock stratum operation is relieved; by collecting formation resistance pressure and drill rod temperature data in real time and automatically adjusting the rotating speed of the driver and the telescopic stroke of the hydraulic cylinder, the problem that existing equipment is difficult to adapt to pain points of different lithologic formations is solved, the necessity of manual intervention is reduced, the operation process is simplified, and the labor cost and time cost of field exploration are reduced.

Description

Technical Field

[0001] This invention relates to the field of geological exploration technology, specifically a geological exploration sampling machine. Background Technology

[0002] Geological exploration is an activity that involves systematic exploration and detection techniques to conduct detailed studies on the geological conditions of a specific area, aiming to provide a scientific basis for mineral development.

[0003] The core role of sampling machines in geological exploration is to efficiently and accurately obtain stratigraphic samples to support mineral exploration and geological research. Existing sampling machines often suffer from low sampling efficiency and difficulty in ensuring sample integrity: when operating in hard rock formations, drill bit wear is rapid and drilling resistance is high, resulting in long sampling times per session; when sampling in loose or soft strata, sample scattering and contamination are common, failing to accurately reflect the original geological information of the strata; furthermore, most sampling machines have relatively fixed structures, making it difficult to adapt to the sampling needs of different depths and lithologies, and some equipment is cumbersome to operate, requiring multiple people to coordinate, increasing the labor and time costs of on-site exploration. Therefore, this invention provides a geological exploration sampling machine. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a geological exploration sampling machine to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a geological exploration sampling machine, comprising a support and adjustment mechanism, a movable plate, a sampling mechanism, a monitoring unit, and a control system;

[0006] The support adjustment mechanism consists of a support assembly and an adjustment assembly. The support assembly includes two symmetrically arranged support plates, and multiple support columns are detachably installed longitudinally at the lower end of each support plate. The adjustment assembly includes two adjustment plates that are movably connected to the upper end of the support plates via connecting columns. A horizontal plate is movably connected to the inner side of the adjustment plate via connecting columns. A hydraulic cylinder is detachably installed at the center of the horizontal plate, and a connecting plate is fixedly installed at the lower end of the hydraulic cylinder.

[0007] The movable plate is detachably installed at the lower end of the connecting plate;

[0008] The sampling mechanism includes multiple drive motors that are evenly arranged along the length of the movable plate and installed at the lower end of the movable plate. Each drive motor is connected to a drill rod at its lower end, and multiple sampling slots are installed on the circumferential surface of the drill rod.

[0009] The monitoring unit includes a pressure sensor and a temperature sensor installed inside the drill pipe. The pressure sensor is used to monitor the formation resistance pressure value experienced by the drill pipe during drilling in real time. The temperature sensor is used to monitor the temperature generated by the drill pipe during high-speed rotating drilling in real time.

[0010] The control system is electrically connected to the pressure sensor and temperature sensor in the monitoring unit, and receives the formation resistance pressure value and drill pipe temperature data transmitted by them in real time. The control system is also signal-connected to the drive motor and the hydraulic cylinder, and is used to automatically adjust the speed or start / stop status of the drive motor according to the monitoring data, and to control the extension and retraction stroke of the hydraulic cylinder to adjust the sampling depth.

[0011] Preferably, the lower end of the support plate is provided with a countersunk hole, the upper end of the support column is interference-fitted with the countersunk hole, and the lower end of the support column has a tapered structure.

[0012] Preferably, the adjusting plate has slots at both ends, and the upper end of the support plate and the outer side of the cross plate are located in the slots.

[0013] Preferably, the circumferential surfaces at both ends of the connecting column are threaded with nuts.

[0014] Preferably, a through hole is provided at the center of the horizontal plate, and a countersunk hole is provided above the through hole. The hydraulic cylinder is installed in the through hole, and a positioning ring is installed inside the countersunk hole, with the positioning ring having an interference fit with the hydraulic cylinder.

[0015] Preferably, bolts are installed at the four corners of the connecting plate, and the upper end of the movable plate has threaded holes arranged concentrically with the bolts, and the bolts and threaded holes are connected by threads.

[0016] Preferably, limit plates are installed on both sides of the movable plate, and a limit groove is formed inside the support plate, with the limit plates installed in the limit groove.

[0017] Preferably, the lower end of the drive shaft of the drive motor is provided with a mounting hole, and the upper end of the drill rod is interference-fitted with the mounting hole.

[0018] Preferably, a reinforcing plate is installed between two adjacent sampling slots.

[0019] Preferably, the control system has a built-in data storage module and an alarm module. The data storage module is used to store real-time data transmitted by the monitoring unit, as well as the speed adjustment record of the drive motor and the extension and retraction stroke data of the hydraulic cylinder. The alarm module includes a buzzer and a red warning light. The alarm module is used to monitor in real time whether the formation resistance pressure value transmitted by the pressure sensor exceeds a preset safety threshold and whether the drill pipe temperature transmitted by the temperature sensor is higher than the upper limit of the safe working temperature of the drill pipe material. When either monitored value exceeds the threshold, a buzzer sound and a red warning light signal are emitted through the buzzer and the red warning light.

[0020] Beneficial effects

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] Through the coordinated action of the support and adjustment mechanism, stable support is achieved for exploration sites in different terrains. The adjustment components, in conjunction with the hydraulic cylinders, can flexibly adjust the sampling angle and depth, effectively adapting to the sampling needs of strata at different depths. The sampling mechanism employs multiple sets of drive motors and drill pipes operating in parallel. The multiple sampling slots not only improve the efficiency of single sampling but also reduce sample scattering and mixing contamination in loose or soft strata. The addition of reinforcement plates enhances the structural strength of the drill pipes and alleviates drill bit wear issues during operations in hard rock strata. By collecting real-time data on formation resistance pressure and drill pipe temperature, the drive motor speed and hydraulic cylinder extension stroke are automatically adjusted. This not only solves the problem of existing equipment being unable to adapt to different lithological strata but also reduces the need for manual intervention, simplifies the operation process, and reduces the manpower and time costs of on-site exploration. In addition, the alarm module built into the control system can promptly warn of abnormal pressure or temperature, ensuring the safe operation of the equipment, while the data storage module retains detailed on-site operation data for subsequent geological analysis. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a front sectional view of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the adjustment component in this invention;

[0026] Figure 4 This is a three-dimensional structural diagram showing the positional relationship between the movable plate and the sampling mechanism in this invention;

[0027] Figure 5 This is a block diagram of the control system in this invention.

[0028] In the diagram: 1. Support adjustment mechanism; 11. Support assembly; 111. Support plate; 112. Support column; 12. Adjustment assembly; 121. Adjustment plate; 122. Connecting column; 123. Horizontal plate; 124. Hydraulic cylinder; 125. Connecting plate; 126. Nut; 2. Movable plate; 3. Sampling mechanism; 31. Drive motor; 32. Drill rod; 33. Sampling slot; 34. Reinforcing plate; 4. Monitoring unit; 41. Pressure sensor; 42. Temperature sensor; 5. Control system; 51. Data storage module; 52. Alarm module; 521. Buzzer; 522. Red warning light; 6. Limit plate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-5 A geological exploration sampling machine includes a support and adjustment mechanism 1, a movable plate 2, a sampling mechanism 3, a monitoring unit 4, and a control system 5.

[0031] The support adjustment mechanism 1 consists of a support assembly 11 and an adjustment assembly 12. The support assembly 11 includes two symmetrically arranged support plates 111. Each support plate 111 has multiple support columns 112 that are detachably installed longitudinally at its lower end. The support columns 112 can fix the support plates 111 at the required working point to achieve overall fixation of the device. The support plates 111 are used to achieve the installation stability of the adjustment assembly 12.

[0032] The adjustment assembly 12 includes two adjustment plates 121 that are movably connected to the upper end of the support plate 111 via connecting columns 122. A horizontal plate 123 is movably connected to the inner side of the adjustment plate 121 via connecting columns 122. A hydraulic cylinder 124 is detachably installed at the center of the horizontal plate 123. A connecting plate 125 is fixedly installed at the lower end of the hydraulic cylinder 124.

[0033] The connecting column 122 ensures the flexible swing of the adjusting plate 121 on the upper end of the support plate 111 and the horizontal plate 123 inside the adjusting plate 121. With the cooperation of the adjusting plate 121 and the connecting column 122, the installation stability and angle adjustment of the horizontal plate 123 can be achieved. The horizontal plate 123 can achieve the installation stability of the hydraulic cylinder 124. The hydraulic cylinder 124 can achieve the installation stability of the connecting plate 125. The hydraulic cylinder 124 is used to drive the connecting plate 125 to move in the vertical direction. By driving the adjusting plate 121 to swing flexibly around the connecting column 122, the horizontal plate 123 and the hydraulic cylinder 124 are adjusted to the optimal working angle. Then, the hydraulic cylinder 124 is started, and its piston rod extends and retracts, driving the connecting plate 125 to move smoothly in the vertical direction. This, in turn, pulls the movable plate 2, which is fastened to the connecting plate 125, to rise and fall synchronously, providing a precise position adjustment basis for the sampling mechanism 3 below, and realizing the sampling requirements at different depths.

[0034] The movable plate 2 is detachably installed at the lower end of the connecting plate 125. Under the action of the connecting plate 125, the installation stability of the movable plate 2 can be guaranteed. Under the action of the movable plate 2, the sampling mechanism 3 can be stably supported and fixed, ensuring that the sampling mechanism remains structurally stable during operation and avoiding the impact of vibration or positional displacement on the sampling accuracy.

[0035] The sampling mechanism 3 includes multiple drive motors 31 evenly arranged along the length of the movable plate 2 and installed at the lower end of the movable plate 2. Each drive motor 31 is connected to a drill rod 32 at its lower end. Multiple sampling slots 33 are installed on the circumferential surface of the drill rod 32. Under the action of the drive motors 31, the drill rod 32 can be driven to rotate at high speed to cut the geological layer. The sampling slots 33 on the circumferential surface of the drill rod 32 rotate synchronously with the drill rod, accurately scraping and storing rock or soil samples at different depths during the cutting process. The opening angle and depth of the sampling slots 33 are optimized by fluid dynamics, which can effectively reduce the resistance of the formation medium during the sampling process and prevent the samples from falling off during the lifting process, ensuring the integrity and representativeness of the samples.

[0036] The monitoring unit 4 includes a pressure sensor 41 and a temperature sensor 42 installed inside the drill pipe 32. The pressure sensor 41 is used to monitor the formation resistance pressure value experienced by the drill pipe during drilling in real time; the temperature sensor 42 is used to monitor the temperature generated by the drill pipe 32 during high-speed rotating drilling in real time.

[0037] Through the effective cooperation of pressure sensor 41 and temperature sensor 42, the formation resistance pressure and drill pipe temperature data during the drill pipe operation can be collected in real time and transmitted synchronously to the control system 5.

[0038] The control system 5 is electrically connected to the pressure sensor 41 and temperature sensor 42 in the monitoring unit 4, receiving the formation resistance pressure value and drill pipe temperature data transmitted by both in real time. The control system 5 is also signal-connected to the drive motor 31 and hydraulic cylinder 124, used to automatically adjust the speed or start / stop state of the drive motor 31 according to the monitoring data, and to control the extension and retraction stroke of the hydraulic cylinder 124 to adjust the sampling depth. The control system 5 performs real-time analysis and processing of the received data: if the resistance value detected by the pressure sensor 41 exceeds the preset safety range, the system will immediately control the hydraulic cylinder 124 to stop the extension and retraction action or adjust the drill pipe angle to avoid the drill pipe bending and being damaged due to excessive load; if the drill pipe temperature detected by the temperature sensor 42 is too high, the system will trigger an alarm mechanism to remind the operator to take timely cooling measures or suspend the operation to prevent the material performance of the drill pipe from deteriorating due to high temperature.

[0039] Specifically, the lower end of the support plate 111 is provided with a countersunk hole, and the upper end of the support column 112 is interference-fitted with the countersunk hole. Under the action of the countersunk hole, the connection between the support column and the support plate can be effectively enhanced, preventing the support column 112 from loosening or shifting due to vibration or uneven force during the operation of the sampler, and ensuring the stability of the overall structure of the support assembly 11. In addition, the lower end of the support column 112 has a conical structure. The conical structure can quickly penetrate the loose or hard soil layer on the surface, reduce the resistance of the support column to insert into the stratum, and increase the contact area with the stratum, thereby improving the overall anti-overturning ability of the support assembly. It is especially suitable for exploration operation scenarios in complex terrains such as mountains and hills.

[0040] Specifically, the two ends of the adjusting plate 121 are provided with slots, and the upper end of the support plate 111 and the outer side of the horizontal plate 123 are set in the slots. The slots provide space for the angle adjustment of the adjusting plate 121, ensuring the adjustment effect.

[0041] Specifically, nuts 126 are threaded onto the circumferential surfaces at both ends of the connecting column 122. The nuts 126 effectively lock the connection between the connecting column 122 and the adjusting plate 121, the support plate 111, and the cross plate 123, preventing the connecting column 122 from loosening or shifting with the components due to vibration during the operation of the sampler. This ensures the tightness and stability of the connection between the structural components of the adjusting assembly 12, maintains the accurate position after angle adjustment, and avoids affecting the operating accuracy of the sampling mechanism 3 and the overall reliability of the device due to loose connections.

[0042] Specifically, a through hole is provided at the center of the horizontal plate 123, and a countersunk hole is provided above the through hole. The hydraulic cylinder 124 is installed in the through hole, and the through hole can achieve the installation stability of the hydraulic cylinder 124. A positioning ring is installed inside the countersunk hole, and the positioning ring is interference-fitted with the hydraulic cylinder 124. The positioning ring can further improve the installation stability of the hydraulic cylinder 124, thereby ensuring the performance of the hydraulic cylinder 124.

[0043] Specifically, bolts are installed at the four corners of the connecting plate 125, and the upper end of the movable plate 2 is provided with threaded holes arranged concentrically with the bolts. The bolts and threaded holes are connected by threads. With the effective cooperation of the bolts and threaded holes, the connection between the connecting plate 125 and the movable plate 2 can be effectively enhanced, preventing relative displacement or loosening of the connection between the two due to high-frequency vibration during the operation of the sampler. This ensures that the movable plate 2 rises and falls synchronously and smoothly with the connecting plate 125, providing a stable support foundation for the sampling mechanism 3.

[0044] Specifically, limit plates 6 are installed on both sides of the movable plate 2, and limit grooves are formed inside the support plate 111, with the limit plates 6 installed within the limit grooves. The effective cooperation of the limit plates 6 and the limit grooves effectively limits the vertical displacement of the movable plate 2 during lifting, preventing it from shifting left or right or tilting due to the driving force of the hydraulic cylinder 124 or external vibrations, ensuring that the movable plate 2 always runs smoothly in the vertical direction. Simultaneously, the tight fit between the limit plates 6 and the limit grooves further enhances the connection rigidity between the movable plate 2 and the support adjustment mechanism 1, reducing the swaying amplitude of the movable plate 2 during operation, providing a more stable working platform for the sampling mechanism 3, ensuring that the sampling slot 33 can accurately cut into the target stratum, and improving the accuracy and integrity of sample collection.

[0045] Specifically, the lower end of the drive shaft of the drive motor 31 is provided with a mounting hole, and the upper end of the drill rod 32 is interference-fitted with the mounting hole. This interference fit can effectively ensure that the torque output by the drive motor 31 can be efficiently and stably transmitted to the drill rod 32, avoiding relative slippage or free rotation between the drill rod 32 and the drive shaft when the drill rod 32 is cutting the formation medium at high speed, thus ensuring the continuity of sampling operations and cutting efficiency.

[0046] Specifically, a reinforcing plate 34 is installed between two adjacent sampling slots 33. The reinforcing plate 34 can effectively enhance the connection rigidity and structural stability between adjacent sampling slots 33, disperse the radial stress and impact load borne by the sampling slots when they are rotating at high speed to cut the formation medium, prevent the sampling slots from deforming, cracking or falling off due to long-term stress or instantaneous overload, and extend the service life of the sampling slots 34.

[0047] Specifically, the control system 5 has a built-in data storage module 51 and an alarm module 52. The data storage module 51 is used to store the real-time formation resistance pressure value, drill pipe temperature data, speed adjustment records of the drive motor 31, and extension and retraction stroke data of the hydraulic cylinder 124 transmitted by the monitoring unit 4. It can also save the equipment's historical work logs and fault records, which is convenient for subsequent retrospective analysis of geological exploration data, optimization of sampling process, and reference for equipment maintenance and repair. The alarm module 52 includes a buzzer 521 and a red warning light 522. The alarm module 52 is used to monitor in real time whether the formation resistance pressure value transmitted by the pressure sensor 41 exceeds the preset safety threshold and whether the drill pipe temperature transmitted by the temperature sensor 42 is higher than the upper limit of the safe working temperature of the drill pipe material. When either monitored value exceeds the threshold, the buzzer 521 and the red warning light 522 will emit a buzzer sound and a red warning light signal.

[0048] Working principle:

[0049] The support column 112 at the lower end of the support plate 111 is vertically inserted into the loose layer or hard soil layer of the stratum. The interference fit between the countersunk hole and the support column 112 ensures the overall stability of the support assembly 11 and prevents the device from overturning.

[0050] By driving the adjusting plate 121 to swing around the connecting column 122, and locking the adjusted connecting part with the nut 126, the horizontal plate 123 and the hydraulic cylinder 124 are adjusted to the optimal working angle; the hydraulic cylinder 124 is started, and its piston rod extends and retracts, driving the connecting plate 125 and the movable plate 2 to move in the vertical direction. At this time, the limiting plate 6 slides synchronously along the limiting groove inside the support plate 111, effectively limiting the offset of the movable plate 2 and ensuring that the sampling mechanism 3 is accurately aligned with the target sampling point.

[0051] Once the movable plate 2 drives the sampling mechanism 3 to the preset initial depth, the control system 5 issues a command to start the drive motor 31. The drive shaft of the drive motor 31 transmits torque stably to the drill rod 32 through an interference fit, causing the drill rod 32 to rotate at high speed. The sampling groove 33 on the surface of the drill rod 32 rotates synchronously with the drill rod, cutting into the formation medium and storing rock or soil samples. The reinforcing plate 34 between adjacent sampling grooves 33 disperses the cutting stress and prevents the sampling grooves from deforming and falling off. At the same time, the pressure sensor 41 of the monitoring unit 4 collects the formation resistance pressure value of the drill rod 32 in real time, and the temperature sensor 42 monitors the temperature generated by the high-speed rotation of the drill rod. The data is synchronously transmitted to the control system 5.

[0052] The control system 5 analyzes the received data in real time. If the resistance value detected by the pressure sensor 41 exceeds the preset safety range, it immediately controls the hydraulic cylinder 124 to stop extending or retracting, or finely adjusts the drill rod angle to prevent the drill rod from bending and being damaged. If the drill rod temperature monitored by the temperature sensor 42 is higher than the safety limit, the buzzer 521 of the alarm module 52 emits a warning sound and the red warning light 522 illuminates, reminding the operator to take cooling measures or suspend the operation. In addition, the control system 5 automatically adjusts the speed of the drive motor 31 according to changes in formation resistance to ensure sampling efficiency and drill rod safety. The data storage module 51 synchronously records real-time monitoring data, drive motor speed adjustment records, and hydraulic cylinder stroke data for subsequent analysis.

[0053] After the sampling operation is completed, the control system 5 controls the piston rod of the hydraulic cylinder 124 to retract, driving the movable plate 2 and the sampling mechanism 3 to rise vertically until the drill rod 32 is completely separated from the formation; the operator disassembles the drill rod 32, takes out the sample in the sampling slot 33 and seals it for preservation.

[0054] The control system 5 generates a sampling operation report and integrates historical data in the data storage module 51 to provide a basis for subsequent geological analysis and equipment maintenance.

[0055] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0056] 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.

[0057] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A geological exploration sampling machine, comprising a support and adjustment mechanism (1), a movable plate (2), a sampling mechanism (3), a monitoring unit (4), and a control system (5); characterized in that: The support adjustment mechanism (1) consists of a support assembly (11) and an adjustment assembly (12). The support assembly (11) includes two symmetrically arranged support plates (111), and each support plate (111) has multiple support columns (112) detachably installed longitudinally at its lower end. The adjustment assembly (12) includes two adjustment plates (121) movably connected to the upper end of the support plates (111) via connecting columns (122). A horizontal plate (123) is movably connected to the inner side of the adjustment plate (121) via connecting columns (122). A hydraulic cylinder (124) is detachably installed at the center of the horizontal plate (123), and a connecting plate (125) is fixedly installed at the lower end of the hydraulic cylinder (124). The movable plate (2) is detachably installed at the lower end of the connecting plate (125); The sampling mechanism (3) includes multiple drive motors (31) that are evenly arranged along the length of the movable plate (2) and installed at the lower end of the movable plate (2). Each drive motor (31) is connected to a drill rod (32) at its lower end. Multiple sampling slots (33) are installed on the circumferential surface of the drill rod (32). The monitoring unit (4) includes a pressure sensor (41) and a temperature sensor (42) installed inside the drill rod (32). The pressure sensor (41) is used to monitor the formation resistance pressure value experienced by the drill rod during drilling in real time. The temperature sensor (42) is used to monitor the temperature generated by the drill rod (32) during high-speed rotating drilling in real time. The control system (5) is electrically connected to the pressure sensor (41) and temperature sensor (42) in the monitoring unit (4), and receives the formation resistance pressure value and drill pipe temperature data transmitted by the two in real time. The control system (5) is also signal connected to the drive motor (31) and the hydraulic cylinder (124) to automatically adjust the speed or start / stop state of the drive motor (31) according to the monitoring data, and to control the extension and retraction stroke of the hydraulic cylinder (124) to adjust the sampling depth.

2. The geological exploration sampling machine according to claim 1, characterized in that, The lower end of the support plate (111) is provided with a countersunk hole, the upper end of the support column (112) is interference-fitted with the countersunk hole, and the lower end of the support column (112) has a tapered structure.

3. The geological exploration sampling machine according to claim 1, characterized in that, The adjusting plate (121) has slots at both ends, and the upper end of the support plate (111) and the outer side of the cross plate (123) are located in the slots.

4. A geological exploration sampling machine according to claim 1, characterized in that, The circumferential surfaces at both ends of the connecting column (122) are threaded with nuts (126).

5. A geological exploration sampling machine according to claim 1, characterized in that, A through hole is provided at the center of the horizontal plate (123), and a countersunk hole is provided above the through hole. The hydraulic cylinder (124) is installed in the through hole, and a positioning ring is installed inside the countersunk hole. The positioning ring is interference-fitted with the hydraulic cylinder (124).

6. A geological exploration sampling machine according to claim 1, characterized in that, Bolts are installed at the four corners of the connecting plate (125), and the upper end of the movable plate (2) is provided with threaded holes arranged concentrically with the bolts. The bolts and the threaded holes are connected by threads.

7. A geological exploration sampling machine according to claim 1, characterized in that, Limiting plates (6) are installed on both sides of the movable plate (2), and a limiting groove is opened inside the support plate (111), and the limiting plate (6) is installed in the limiting groove.

8. A geological exploration sampling machine according to claim 1, characterized in that, The drive shaft of the drive unit (31) has a mounting hole at its lower end, and the upper end of the drill rod (32) is interference-fitted with the mounting hole.

9. A geological exploration sampling machine according to claim 1, characterized in that, A reinforcing plate (34) is installed between two adjacent sampling slots (33).

10. A geological exploration sampling machine according to claim 1, characterized in that, The control system (5) has a built-in data storage module (51) and an alarm module (52). The data storage module (51) is used to store the real-time data transmitted by the monitoring unit (4), the speed adjustment record of the drive motor (31), and the extension stroke data of the hydraulic cylinder (124). The alarm module (52) includes a buzzer (521) and a red warning light (522). The alarm module (52) is used to monitor in real time whether the formation resistance pressure value transmitted by the pressure sensor (41) exceeds the preset safety threshold, and whether the drill pipe temperature transmitted by the temperature sensor (42) is higher than the upper limit of the safe working temperature of the drill pipe material. When any monitored value exceeds the threshold, a buzzer sound and a red warning light signal are emitted through the buzzer (521) and the red warning light (522).

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