Stratum rock soil sampling device and sampling method

Abstract

The invention relates to the technical field of rock-soil sampling, in particular to a stratum rock-soil sampling device and method.The stratum rock-soil sampling device comprises a movable platform, a drilling mechanism is installed on the side portion of the movable platform and comprises a side plate, the side plate is fixedly installed at the top of the movable platform, and a sliding groove is formed in the side portion of the side plate; a first threaded rod is rotatably mounted in the sliding groove, the first mounting plate is mounted on the surface of the first threaded rod in a threaded mode, a first motor is fixedly mounted at the top of the first mounting plate, a drilling rod is rotatably mounted at the bottom of the first mounting plate, and the drilling rod is fixedly connected with the output end of the first motor. By arranging the static pressure sampling mechanism and the hard sampling mechanism and combining real-time detection of the pressure sensor, automatic switching sampling of stratums with different hardness such as soft soil, hard soil and rock stratums can be achieved, sampling components do not need to be replaced, operation is convenient and fast, the sampling efficiency is greatly improved, and the sampling requirements of complex stratums are met.

Description

A geological soil and rock sampling device and sampling method Technical Field

[0001] This invention relates to the field of soil and rock sampling technology, specifically to a soil and rock sampling device and sampling method. Background Technology

[0002] In geological exploration and engineering construction, soil and rock sampling is a core and fundamental task. By collecting soil and rock samples from different depths and types of strata, we can analyze the physical and mechanical properties, composition and other indicators of soil and rock, providing a scientific basis for engineering design, construction safety and geological disaster prevention.

[0003] Currently, existing soil and rock sampling devices have many shortcomings. Most sampling devices can only sample strata with a single hardness. For complex strata where soft and hard soils are interspersed, different sampling components need to be replaced, which is cumbersome and inefficient. When sampling soft soil, problems such as sample loss and excessive disturbance are likely to occur, resulting in samples that cannot truly reflect the actual situation of the strata and affecting the accuracy of the test results. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned conventional technologies and to provide a geological soil and rock sampling device that overcomes or at least partially solves the above-mentioned technical problems.

[0005] The objective of this invention is achieved through the following technical measures: This invention provides a geological soil and rock sampling device, including a mobile platform. A drilling mechanism is installed on the side of the mobile platform. The drilling mechanism includes: a side plate, which is fixedly installed on the top of the mobile platform. A sliding groove is formed on the side of the side plate, and a first threaded rod is rotatably installed inside the sliding groove; a first mounting plate, which is threaded onto the surface of the first threaded rod. A first motor is fixedly installed on the top of the first mounting plate, and a drilling rod is rotatably installed on the bottom of the first mounting plate. The drilling rod is fixedly connected to the output end of the first motor; a limiting groove, which is fixedly installed on the side of the side plate. The drilling rod is movably connected to the limiting groove, and a drill bit is fixedly installed on the bottom of the drilling rod.

[0006] In one embodiment of the present invention, a partition is fixedly installed inside the drill bit, and two partitions are provided. A sealing cavity is provided between the two partitions. A second threaded rod is rotatably installed inside the sealing cavity, and a threaded sleeve is threadedly installed on the surface of the second threaded rod.

[0007] In one embodiment of the present invention, a first gear is rotatably mounted at the bottom of the inner cavity of the sealing cavity, a first pulley is rotatably mounted at the top of the first gear, a connecting rod is fixedly mounted at the top of the first gear, the connecting rod passes through the top of the first pulley and is rotatably connected to the first pulley, and the top of the connecting rod is fixedly connected to a second threaded rod.

[0008] In one embodiment of the present invention, a sliding cylinder is fixedly installed on the top of the first pulley, a second mounting plate is slidably installed on the surface of the sliding cylinder, a second motor is fixedly installed on the bottom of the sealed cavity, a sealing cover is provided on the outside of the second motor, the output end of the second motor passes through the interior of the sealed cavity and is rotatably connected to the sealed cavity, a second pulley is fixedly installed on the output end of the second motor, and the second pulley is connected to the first pulley through a belt.

[0009] In one embodiment of the present invention, a first feed port is provided on the side of the sealed cavity. There are two first feed ports. A first sliding seat is fixedly installed on the side of each of the two first feed ports. A static pressure sampling cylinder is slidably installed inside the first sliding seat. A rotating plate is rotatably installed on the side of the static pressure sampling cylinder. The rotating plate is rotatably connected to the threaded sleeve.

[0010] In one embodiment of the present invention, a rigid sampling mechanism is provided inside the sealed cavity. The rigid sampling mechanism includes a second inlet, and two second inlets are provided. A second sliding seat is fixedly installed on the side of the two second inlets. A rotating sampling cylinder is movably installed inside the second sliding seat. A connecting guide rod is fixedly installed on the top of the rotating sampling cylinder. An electric guide rail is fixedly installed on the top of the sealed cavity. The electric guide rail is slidably connected to the connecting guide rod.

[0011] In one embodiment of the present invention, a fixing rod is fixedly installed on the top of the sealing cavity, a first bevel gear is rotatably installed on the side of the fixing rod, a gear cylinder is fixedly installed on the side of the first bevel gear, a gear rod is slidably installed inside the gear cylinder, the side of the gear rod is fixedly connected to the rotating sampling cylinder, and a second bevel gear is rotatably installed on the bottom of the fixing rod, the second bevel gear meshing with the first bevel gear.

[0012] In one embodiment of the present invention, a first electric telescopic rod is fixedly installed at the bottom of the sealing cavity. The telescopic end of the first electric telescopic rod penetrates into the interior of the sealing cavity and is slidably connected to the sealing cavity. The telescopic end of the first electric telescopic rod is fixedly connected to a second mounting plate. A double-groove pulley is rotatably installed at the bottom of the second mounting plate. A rotating rod is rotatably installed at the bottom of the second bevel gear. A bidirectional clutch tooth is movably installed on the surface of the rotating rod. A third pulley is provided on the surface of the bidirectional clutch tooth. The third pulley is connected to the double-groove pulley via a belt.

[0013] In one embodiment of the present invention, a first clutch tooth is fixedly installed at the bottom of the second bevel gear, and a second clutch tooth is rotatably installed at the bottom of the rotating rod. A first spring is provided between the first clutch tooth and the second clutch tooth. The bidirectional clutch tooth is rotatably connected to the second mounting plate. A second gear is fixedly installed at the bottom of the second clutch tooth, and the second gear meshes with the first gear. A mounting seat is provided inside the sealing cavity. A sliding plate is slidably installed inside the mounting seat. A pressure sensor is fixedly installed on the side of the sliding plate. A sliding guide rod is fixedly installed on the side of the sliding plate. A detection rod is slidably installed on the surface of the sliding guide rod. A second spring is sleeved between the sliding plate and the detection rod. A second electric telescopic rod is fixedly installed on the side of the mounting seat. The end of the second electric telescopic rod is fixedly connected to the sliding plate. The pressure sensor is connected to the first electric telescopic rod via an electrical signal.

[0014] A method for sampling soil and rock formations, applicable to a soil and rock sampling device, comprises the following steps: S1: Device debugging and positioning. The mobile platform is moved to the target sampling location, the tires are locked to ensure device stability, the device is started via the controller, and the operating status of the drilling mechanism, hard sampling mechanism, and various electrical components is checked to ensure that each component is fault-free. The second electric telescopic rod is activated, driving the sliding plate and the detection rod to extend, so that the detection rod contacts the formation surface. The pressure sensor begins to detect the initial hardness of the formation and transmits the detection signal to the controller. The controller determines the formation based on the pressure value. Type, complete the preparatory work before sampling; S2: Drilling positioning, start the drive motor at the top of the first threaded rod, drive the first threaded rod to rotate, and drive the first mounting plate to move downward along the sliding groove. At the same time, start the first motor to drive the drill rod and drill bit to rotate at high speed. The drill bit drills downward during rotation. The limiting groove guides and limits the drill rod to prevent drilling deviation. During drilling, the detection rod is always in contact with the formation. The pressure sensor detects the formation hardness in real time and transmits it synchronously to the controller until the drill bit reaches the target sampling depth, and then stops the rotation and descent of the drill rod; S3 Sample collection: Based on the formation hardness signal displayed by the controller, the sampling mode is automatically switched: Soft soil formation sampling: When the pressure value detected by the pressure sensor is lower than the set threshold, it is determined to be a soft soil formation. The controller controls the extension and retraction of the first electric telescopic rod, which drives the second mounting plate to move downward, causing the bidirectional clutch teeth to engage with the second clutch teeth. The second motor is started, driving the second pulley to rotate. This drives the first pulley and the sliding cylinder to rotate via the belt. The sliding cylinder drives the double-groove pulley to rotate. The double-groove pulley drives the third pulley and the bidirectional clutch teeth to rotate via the belt. The bidirectional clutch teeth drive... The second clutch gear and the second gear rotate, the second gear drives the first gear to rotate, and the first gear drives the second threaded rod to rotate through the connecting rod. The threaded sleeve moves downward along the second threaded rod, and through the rotating plate, it drives the two static pressure sampling cylinders to extend outward along the first sliding seat. The sampling port passes through the first feed port and contacts the soft soil layer. The soft soil enters the static pressure sampling cylinder under static pressure. After the collection is completed, the second motor is controlled to reverse, which drives the second threaded rod to reverse and the threaded sleeve to move in the opposite direction. Through the rotating plate, the static pressure sampling cylinder is driven to retract into the sealing cavity, completing the collection and sealing of the soft soil sample.Sampling of Hard Layers: When the pressure value detected by the pressure sensor exceeds the set threshold, it is determined to be a hard layer. The controller controls the extension and retraction of the first electric telescopic rod, which moves the second mounting plate upward, causing the bidirectional clutch teeth to engage with the first clutch teeth. The second motor is started, driving the second pulley to rotate. This drives the first pulley and the sliding cylinder to rotate via the belt. The sliding cylinder drives the second mounting plate and the double-groove pulley to rotate. The double-groove pulley drives the third pulley and the bidirectional clutch teeth to rotate via the belt. The bidirectional clutch teeth drive the first clutch teeth and the second bevel gear to rotate. The second bevel gear drives the first bevel gear and the gear cylinder to rotate. The gear cylinder drives the gear rod and the rotating sampling cylinder to rotate. Simultaneously, the electric guide rail is started, driving the connecting guide rod to move, causing the rotating sampling cylinder to extend outward along the second sliding seat. The sampling port passes through the second feed port and contacts the hard layer. The rotating sampling cylinder cuts and spirally feeds the hard rock and soil sample through the cutting teeth at the end and the internal spiral blades. S4: Sample Removal. The drive motor at the top of the first threaded rod is activated, reversing the first threaded rod and moving the first mounting plate, drill rod, and drill bit upwards until the drill bit detaches from the formation and reaches a suitable height. The sealing cap of the drill bit is opened, and samples from the static pressure sampling cylinder and rotating sampling cylinder are removed. The samples are placed in sealed sample bags and labeled, completing sample removal and storage. S5: Device Reset and Cleaning. The static pressure sampling cylinder and rotating sampling cylinder are reset. The second electric telescopic rod is activated, retracting the detection rod into the mounting base. Rock and soil debris on the drill bit surface is cleaned, and the wear of each component is checked. Severely worn components are replaced or maintained. All electrical components are turned off, the tires are unlocked, and the device is moved to the designated storage location, completing the sampling operation.

[0015] This invention provides a geological stratum soil and rock sampling device, the advantages of which include: By setting up a static pressure sampling mechanism and a hard soil sampling mechanism, combined with real-time detection by a pressure sensor, this invention can automatically switch between sampling of strata of different hardness, such as soft soil, hard soil, and rock strata, without the need to replace sampling components. This is convenient to operate, significantly improves sampling efficiency, and adapts to the sampling needs of complex strata. The static pressure sampling cylinder collects soft soil samples, effectively reducing disturbance and loss of soft soil samples, ensuring sample integrity and authenticity. The rotating sampling cylinder, in conjunction with spiral blades, collects hard soil strata samples, resulting in high cutting efficiency and stable sampling, avoiding problems such as sampling cylinder jamming and wear, and improving sample qualification rate. Through the coordinated design of the drilling and sampling mechanisms, the limiting groove guides and limits the drilling rod, ensuring accurate drilling and sampling positions and preventing deviation. Simultaneously, the sampling mechanism is located inside the drill bit, effectively protecting the sampling components from stratum compression and erosion, extending the device's service life. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure provided by an embodiment of the present invention.

[0017] Figure 2 is a schematic diagram of the drilling mechanism structure provided in the embodiment of the present invention.

[0018] Figure 3 is a schematic diagram of the drill bit structure provided in an embodiment of the present invention.

[0019] Figure 4 is a schematic diagram of the front cross-sectional structure of the drill bit provided in the embodiment of the present invention.

[0020] Figure 5 is a schematic diagram of the internal structure of the drill bit provided in an embodiment of the present invention.

[0021] Figure 6 is a schematic diagram of the rigid sampling mechanism provided in an embodiment of the present invention.

[0022] Figure 7 is a front view schematic diagram of the rigid sampling mechanism provided in the embodiment of the present invention.

[0023] Figure 8 is a schematic diagram of the mounting base structure provided in an embodiment of the present invention.

[0024] In the diagram: 1. Mobile platform; 2. Drilling mechanism; 201. Side plate; 202. Sliding groove; 203. First threaded rod; 204. First mounting plate; 205. First motor; 206. Drill rod; 207. Limiting groove; 208. Drill bit; 209. Partition plate; 210. Sealing cavity; 211. Second threaded rod; 212. Threaded sleeve; 213. First gear; 214. First pulley; 215. Connecting rod; 216. Sliding cylinder; 217. Second mounting plate; 218. Second motor; 219. Sealing cover; 220. Second pulley; 221. First feed inlet; 222. First sliding seat; 223. Static pressure sampling cylinder; 224. Rotating plate; 3. Hard sampling mechanism; 301 302. Second feed inlet; 303. Second sliding seat; 304. Rotating sampling cylinder; 305. Connecting guide rod; 306. Electric guide rail; 307. Fixed rod; 308. First bevel gear; 309. Gear cylinder; 310. Gear rack; 311. Second bevel gear; 312. First electric telescopic rod; 313. Double groove pulley; 314. Rotating rod; 315. Bidirectional clutch gear; 316. Third pulley; 317. First clutch gear; 318. Second clutch gear; 319. First spring; 320. Second gear; 321. Mounting seat; 322. Sliding plate; 323. Pressure sensor; 324. Sliding guide rod; 325. Detection rod; 326. Second electric telescopic rod. Detailed Implementation

[0025] Example: Referring to Figures 1 to 8, this technical solution provides a geological soil and rock sampling device, specifically including a mobile platform 1. A drilling mechanism 2 is installed on the side of the mobile platform 1. Lockable tires are installed at the bottom of the mobile platform 1 to facilitate the movement and fixation of the device and ensure the stability of the device during sampling. A controller and a battery are also provided on the top of the mobile platform 1. The controller is electrically connected to the various electrical components of the device to control the coordinated operation of the components. The battery provides power support for the entire device, is rechargeable and reusable, and is suitable for field operation scenarios without external power supply. The drilling mechanism 2 includes a side plate 201, which is fixedly installed on the top of the mobile platform 1. The side plate 201 is made of high-strength alloy material and has good load-bearing capacity. To enhance resistance to deformation, a sliding groove 202 is provided on the side of the side plate 201. A first threaded rod 203 is rotatably mounted inside the sliding groove 202. The top of the first threaded rod 203 passes through the side plate 201 and is fixedly mounted with a drive motor. The drive motor is electrically connected to the controller and is used to drive the first threaded rod 203 to rotate forward and backward. A first mounting plate 204 is threaded onto the surface of the first threaded rod 203. One side of the first mounting plate 204 slides against the inner wall of the sliding groove 202 to ensure that the first mounting plate 204 rises and falls smoothly along the sliding groove 202. A first motor 205 is fixedly mounted on the top of the first mounting plate 204. The first motor 205 is a geared motor with the characteristics of high torque and adjustable speed. A drill rod 206 is rotatably mounted on the bottom of the 204. The drill rod 206 has a hollow structure and wear-resistant threads on its surface. The drill rod 206 is fixedly connected to the output end of the first motor 205 via a coupling. The first motor 205 can drive the drill rod 206 to rotate at high speed to realize formation drilling. A limiting groove 207 is fixedly installed on the side of the side plate 201 and is set parallel to the sliding groove 202. The drill rod 206 is movably connected to the limiting groove 207. The limiting groove 207 has a wear-resistant bushing inside, which can guide and limit the drill rod 206 to prevent the drill rod 206 from deviating during rotation and lifting. A drill bit 208 is fixedly mounted on the bottom of the drill rod 206. The drill bit 208 is made of diamond wear-resistant material. The drill bit 208 is made of a material with a tapered cutting edge at the bottom, which allows it to quickly drill into formations of different hardness and reduce drilling resistance. Two partitions 209 are fixedly installed inside the drill bit 208. The partitions 209 are symmetrically distributed and are made of a sealing material. A sealing cavity 210 is provided between the two partitions 209. The sealing cavity 210 is used to install sampling control components to ensure that the internal components are not corroded by rock debris and groundwater. A second threaded rod 211 is rotatably installed inside the sealing cavity 210. The second threaded rod 211 is vertically arranged and a threaded sleeve 212 is threaded on the surface of the second threaded rod 211. When the second threaded rod 211 rotates, the threaded sleeve 212 can move up or down along the second threaded rod 211.

[0026] A first gear 213 is rotatably mounted at the bottom of the inner cavity of the sealed cavity 210. The first gear 213 is a high-strength gear with good transmission stability. A first pulley 214 is rotatably mounted on the top of the first gear 213. The first pulley 214 is coaxial with the first gear 213 but can rotate relatively independently. A connecting rod 215 is fixedly mounted on the top of the first gear 213. The connecting rod 215 is coaxial with the first gear 213, passes through the top of the first pulley 214, and is rotatably connected to the first pulley 214. The top of the connecting rod 215 is fixedly connected to a second threaded rod 211. When the first gear 213 rotates, the second threaded rod 211 can be driven synchronously through the connecting rod 215. The first pulley 214 rotates, and a sliding cylinder 216 is fixedly installed on its top. The sliding cylinder 216 is vertically arranged and has a guide groove on its surface. A second mounting plate 217 is movably installed on the surface of the sliding cylinder 216 and can slide up and down along the sliding cylinder 216. The sliding cylinder 216 can rotate inside the second mounting plate 217. A second motor 218 is fixedly installed at the bottom of the sealed cavity 210. The second motor 218 is electrically connected to the controller and is a waterproof motor to ensure stable operation inside the sealed cavity 210. A sealing cover 219 is provided on the outside of the second motor 218. The sealing cover 219 is made of sealing rubber material to seal and protect the second motor 218 and prevent groundwater and soil debris from entering. Inside the motor, the output end of the second motor 218 extends into the interior of the sealed cavity 210 and is rotatably connected to it. A sealed bearing is provided at the connection point. A second pulley 220 is fixedly installed on the output end of the second motor 218. The second pulley 220 is connected to the first pulley 214 via a belt. The second motor 218 can drive the first pulley 214 to rotate via the belt, thereby driving the sliding cylinder 216 to rotate. A first feed port 221 is provided on the side of the sealed cavity 210. There are two first feed ports 221, which are symmetrically distributed and communicate with the outside of the drill bit 208. They are used for soft soil samples to enter the static pressure sampling cylinder 223. A first sliding seat 2 is fixedly installed on the side of each of the two first feed ports 221. 22. The first sliding seat 222 is equipped with a sliding guide rail inside. A static pressure sampling cylinder 223 is slidably installed inside the first sliding seat 222. The static pressure sampling cylinder 223 is made of transparent material to facilitate observation of the sample collection. Its end is equipped with a sharp sampling port and an internal sealing gasket to prevent sample loss. A rotating plate 224 is rotatably installed on the side of the static pressure sampling cylinder 223. One end of the rotating plate 224 is rotatably connected to the static pressure sampling cylinder 223, and the other end is rotatably connected to the threaded sleeve 212. When the threaded sleeve 212 moves along the second threaded rod 211, the rotating plate 224 can drive the static pressure sampling cylinder 223 to slide along the first sliding seat 222, thereby realizing the extension and retraction of the sampling port and completing the collection and sealing of soft soil samples.

[0027] Referring to Figures 1-8, this embodiment also proposes that a hard sampling mechanism 3 is provided inside the sealed cavity 210 for collecting samples of hard strata such as hard soil and rock. The hard sampling mechanism 3 includes two second inlets 301, which are symmetrically distributed and located below the first inlet 221, communicating with the outside of the drill bit 208, for the hard soil and rock samples to enter the rotating sampling cylinder 303. Second sliding seats 302 are fixedly installed on the sides of the two second inlets 301. The second sliding seats 302 are provided with wear-resistant sliding guide rails inside, and the rotating sampling cylinder 303 is movably installed inside the second sliding seats 302. The rotating sampling cylinder 303 is made of high-strength wear-resistant material and has spiral blades inside, which can spirally feed the hard soil and rock samples into the sampling cylinder. The internal structure, with cutting teeth at the ends, facilitates drilling into hard strata. A connecting guide rod 304 is fixedly installed on the top of the rotating sampling cylinder 303, and the connecting guide rod 304 is horizontally positioned. An electric guide rail 305 is fixedly installed on the top of the sealing cavity 210, and the electric guide rail 305 is electrically connected to the controller. The electric guide rail 305 is slidably connected to the connecting guide rod 304, and the electric guide rail 305 can drive the connecting guide rod 304 to move, thereby causing the rotating sampling cylinder 303 to slide along the second sliding seat 302, realizing the extension and retraction of the sampling port. A fixing rod 306 is fixedly installed on the top of the sealing cavity 210, and the fixing rod 306 is vertically positioned for installing transmission components. A first bevel gear 307 is rotatably installed on the side of the fixing rod 306. The first bevel gear 307 is a high-strength bevel gear. The transmission efficiency is high. A gear cylinder 308 is fixedly installed on the side of the first bevel gear 307. The gear cylinder 308 and the first bevel gear 307 are coaxially arranged and rotate synchronously. A gear rod 309 is slidably installed inside the gear cylinder 308. The gear rod 309 meshes with the gear cylinder 308 and can move telescopically along the gear cylinder 308. The side of the gear rod 309 is fixedly connected to the rotating sampling cylinder 303. When the gear cylinder 308 rotates, it can drive the gear rod 309 to rotate, thereby driving the rotating sampling cylinder 303 to rotate synchronously, realizing the cutting and collection of hard rock and soil samples. A second bevel gear 310 is rotatably installed at the bottom of the fixed rod 306. The second bevel gear 310 meshes with the first bevel gear 307. When the second bevel gear 310 rotates, it can drive the first bevel gear 307 to rotate synchronously, realizing power The sealing cavity 210 is equipped with a first electric telescopic rod 311, which is electrically connected to the controller. The first electric telescopic rod 311 is waterproof and has high telescopic accuracy. The telescopic end of the first electric telescopic rod 311 extends into the interior of the sealing cavity 210 and is slidably connected to it. A sealing sleeve is provided at the connection point. The telescopic end of the first electric telescopic rod 311 is fixedly connected to a second mounting plate 217, which can drive the second mounting plate 217 to slide up and down along the sliding cylinder 216. A double-groove pulley 312 is rotatably mounted on the bottom of the second mounting plate 217, and the double-groove pulley 312 can move up and down and rotate synchronously with the second mounting plate 217. A rotating rod 313 is rotatably mounted on the bottom of the second bevel gear 310, and the rotating rod 313 is vertically positioned.A bidirectional clutch tooth 314 is movably mounted on the surface of the rotating rod 313. The bidirectional clutch tooth 314 can slide up and down along the rotating rod 313 and rotate synchronously with the rotating rod 313. A third pulley 315 is provided on the surface of the bidirectional clutch tooth 314. The third pulley 315 is fixedly connected to the bidirectional clutch tooth 314 and rotates synchronously. The third pulley 315 is connected to the double-groove pulley 312 via a belt. When the double-groove pulley 312 rotates, it can drive the third pulley 315 and the bidirectional clutch tooth 314 to rotate synchronously via the belt. A first clutch tooth 316 is fixedly mounted on the bottom of the second bevel gear 310, and a second clutch tooth 317 is rotatably mounted on the bottom of the rotating rod 313. Both the first clutch tooth 316 and the second clutch tooth 317 are connected to the bidirectional clutch tooth 314. Correspondingly, a first spring 318 is provided between the first clutch tooth 316 and the second clutch tooth 317. The first spring 318 is sleeved on the surface of the rotating rod 313 to provide elastic support for the bidirectional clutch tooth 314, ensuring stable engagement between the bidirectional clutch tooth 314 and the first clutch tooth 316 or the second clutch tooth 317. The bidirectional clutch tooth 314 is rotatably connected to the second mounting plate 217 and can move up and down with the second mounting plate 217, thereby realizing the switching of engagement with the first clutch tooth 316 or the second clutch tooth 317. A second gear 319 is fixedly installed at the bottom of the second clutch tooth 317. The second gear 319 meshes with the first gear 213. When the second gear 319 rotates, it can drive the first gear 213 to rotate synchronously. The inner part of the sealing cavity 210 The component is provided with a mounting base 320, which is fixedly installed on the inner wall of the sealed cavity 210 for mounting the formation hardness detection component. A sliding plate 321 is slidably mounted inside the mounting base 320, and the sliding plate 321 can slide horizontally along the mounting base 320. A pressure sensor 322 is fixedly mounted on the side of the sliding plate 321. The pressure sensor 322 is electrically connected to the controller and is used to detect formation hardness, converting the pressure signal into an electrical signal and transmitting it to the controller. A sliding guide rod 323 is fixedly mounted on the side of the sliding plate 321, and the sliding guide rod 323 is horizontally positioned. A detection rod 324 is slidably mounted on the surface of the sliding guide rod 323. The end of the detection rod 324 penetrates the sealed cavity 210 and the drill bit 208, contacting the formation. The sliding plate 321 and the detection rod 324... A second spring 325 is sleeved between the two, which acts as an elastic buffer for the detection rod 324, ensuring close contact between the detection rod 324 and the formation. A second electric telescopic rod 326 is fixedly installed on the side of the mounting base 320. The second electric telescopic rod 326 is electrically connected to the controller, and its end is fixedly connected to the sliding plate 321, which can drive the sliding plate 321 and the detection rod 324 to move, thereby realizing formation hardness detection. The pressure sensor 322 is connected to the first electric telescopic rod 311 via an electrical signal. The controller can automatically control the extension and retraction of the first electric telescopic rod 311 according to the pressure value detected by the pressure sensor 322, realizing the engagement switching between the bidirectional clutch tooth 314 and the first clutch tooth 316 or the second clutch tooth 317.This allows for automatic switching between sampling methods for soft soil and hard soil layers.

[0028] Referring to Figures 1 to 8, this embodiment also proposes a method for sampling soil and rock formations, applicable to a soil and rock formation sampling device. The steps are as follows: S1: Device debugging and positioning. Move the mobile platform 1 to the target sampling position, lock the tires to ensure device stability, start the device through the controller, check the operating status of the drilling mechanism 2, the hard sampling mechanism 3 and each electrical component to ensure that each component is fault-free, start the second electric telescopic rod 326, drive the sliding plate 321 and the detection rod 324 to extend, so that the detection rod 324 contacts the surface of the formation, the pressure sensor 322 starts to detect the initial hardness of the formation and transmits the detection signal to the controller, the controller determines the formation type according to the pressure value, and completes the preparatory work before sampling.

[0029] S2: Drilling positioning. Start the drive motor at the top of the first threaded rod 203 to drive the first threaded rod 203 to rotate, causing the first mounting plate 204 to move downward along the sliding groove 202. At the same time, start the first motor 205 to drive the drill rod 206 and drill bit 208 to rotate at high speed. The drill bit 208 drills downward during rotation. The limiting groove 207 guides and limits the drill rod 206 to prevent drilling deviation. During drilling, the detection rod 324 is always in contact with the formation. The pressure sensor 322 detects the formation hardness in real time and transmits it synchronously to the controller until the drill bit 208 reaches the target sampling depth, at which point the rotation and descent of the drill rod 206 are stopped.

[0030] S3: Sample Collection. Based on the formation hardness signal displayed by the controller, the sampling mode is automatically switched: Soft Soil Sampling: When the pressure value detected by the pressure sensor 322 is lower than the set threshold, it is determined to be a soft soil layer. The controller controls the extension and retraction of the first electric telescopic rod 311, which drives the second mounting plate 217 to move downward, so that the bidirectional clutch tooth 314 engages with the second clutch tooth 317. The second motor 218 is started, driving the second pulley 220 to rotate. Through the belt, the first pulley 214 and the sliding cylinder 216 rotate. The sliding cylinder 216 drives the double-groove pulley 312 to rotate. The double-groove pulley 312 drives the third pulley 315 and the bidirectional clutch tooth 314 to rotate through the belt. The bidirectional clutch tooth 314 drives the second clutch tooth 315 to rotate. 17. The second gear 319 rotates, which drives the first gear 213 to rotate. The first gear 213 drives the second threaded rod 211 to rotate via the connecting rod 215. The threaded sleeve 212 moves downward along the second threaded rod 211. The rotating plate 224 drives the two static pressure sampling cylinders 223 to extend outward along the first sliding seat 222. The sampling port passes through the first feed port 221 and contacts the soft soil layer. The soft soil enters the static pressure sampling cylinder 223 under static pressure. After the collection is completed, the second motor 218 is controlled to reverse, which drives the second threaded rod 211 to reverse and the threaded sleeve 212 to move in the opposite direction. The rotating plate 224 drives the static pressure sampling cylinder 223 to retract into the sealing cavity 210, completing the collection and sealing of the soft soil sample.

[0031] Sampling of hard surfaces: When the pressure value detected by the pressure sensor 322 is higher than the set threshold, it is determined to be a hard surface. The controller controls the first electric telescopic rod 311 to extend, driving the second mounting plate 217 to move upward, so that the bidirectional clutch tooth 314 engages with the first clutch tooth 316. The second motor 218 is started, driving the second pulley 220 to rotate. The pulley 220 drives the first pulley 214 and the sliding cylinder 216 to rotate via the belt. The sliding cylinder 216 drives the second mounting plate 217 and the double-groove pulley 312 to rotate. The double-groove pulley 312 drives the third pulley 315 and the bidirectional clutch tooth 314 to rotate via the belt. The bidirectional clutch tooth 314 drives the first clutch tooth 316 and the second bevel gear to rotate. When the second bevel gear 310 rotates, it drives the first bevel gear 307 and the gear cylinder 308 to rotate. The gear cylinder 308 drives the gear rack 309 and the rotating sampling cylinder 303 to rotate. At the same time, the electric guide rail 305 is activated, driving the connecting guide rod 304 to move. This causes the rotating sampling cylinder 303 to extend outward along the second sliding seat 302. The sampling port passes through the second feed port 301 and contacts the hard soil layer. The rotating sampling cylinder 303 cuts the hard soil sample and spirally feeds it into the sampling cylinder through the cutting teeth at the end and the internal spiral blades. After the collection is completed, the electric guide rail 305 is controlled to drive the rotating sampling cylinder 303 to retract. At the same time, the second motor 218 is controlled to stop rotating, completing the collection of the hard soil layer sample.

[0032] S4: Sample removal. Start the drive motor at the top of the first threaded rod 203 to drive the first threaded rod 203 to reverse, which will move the first mounting plate 204, drill rod 206 and drill bit 208 upward until the drill bit 208 leaves the formation and rises to a suitable height. Open the sealing cover of the drill bit 208 and take out the samples from the static pressure sampling cylinder 223 and the rotating sampling cylinder 303 respectively. Put the samples into a sealed sample bag, mark it, and complete the sample removal and preservation.

[0033] S5: Reset and clean the device. Reset the static pressure sampling cylinder 223 and the rotating sampling cylinder 303. Start the second electric telescopic rod 326 to drive the detection rod 324 to retract into the mounting base 320. Clean the rock and soil debris on the surface of the drill bit 208. Check the wear of each component. Replace or maintain severely worn components. Turn off all electrical components. Unlock the tires. Move the device to the designated storage location to complete the sampling operation.

[0034] Specifically, the working process or working principle of this geological soil and rock sampling device is as follows: First, the device is debugged and positioned. The mobile platform 1 is moved to the target sampling area, and the bottom tires are locked to ensure that the device does not shake during the sampling process. The entire device is started through the controller on the top of the mobile platform 1. The operator sets the target sampling depth through the controller and starts the drive motor on the top of the first threaded rod 203, driving the first threaded rod 203 to rotate clockwise. Since the first mounting plate 204 is threadedly connected to the first threaded rod 203, and one side of the first mounting plate 204 slides against the inner wall of the sliding groove 202, the first mounting plate 204 moves smoothly downward along the sliding groove 202. At the same time, the first motor 205 is started, and the output end of the first motor 205 is connected to the first motor 205. The coupling drives the drill rod 206 to rotate at high speed, which in turn drives the drill bit 208 at the bottom to rotate synchronously. The tapered cutting edge at the bottom of the drill bit 208 quickly drills into the formation. The wear-resistant bushing inside the limiting groove 207 guides and limits the drill rod 206, effectively preventing the drill rod 206 from deviating during rotation and descent, ensuring accurate drilling position. During drilling, the detection rod 324 is always in contact with the formation. The pressure sensor 322 detects the formation hardness in real time and transmits it synchronously to the controller. If the formation hardness changes, such as from soft soil to hard soil, the controller can adjust the sampling method in real time until the drill bit 208 reaches the target sampling depth. At this time, the controller controls the first motor 205 and the drive motor to stop working, completing the drilling positioning.

[0035] Then, sample collection is performed. Based on the formation hardness signal displayed by the controller, the corresponding sampling method is automatically switched. When the pressure value detected by the pressure sensor 322 is lower than the preset threshold, it is determined to be a soft soil formation. At this time, the controller controls the first electric telescopic rod 311 to shorten, driving the second mounting plate 217 to move downward along the sliding cylinder 216. The bidirectional clutch tooth 314 moves downward under the action of the second mounting plate 217, compressing the first spring 318 until the bidirectional clutch tooth 314 and the second clutch tooth 317 are fully engaged. The second motor 218 is then started. The output end of the second motor 218 drives the second pulley 220 to rotate. The second pulley 220 drives the first pulley 214 to rotate via a belt. The first pulley 214 drives the top sliding cylinder 216 to rotate synchronously. The sliding cylinder 216 drives the double-groove pulley 312 to rotate. The double-groove pulley 312 drives the third pulley 315 to rotate via a belt. The third pulley 315 drives the bidirectional clutch tooth 314 to rotate synchronously. The bidirectional clutch tooth 314 drives the second clutch tooth 317. The second clutch tooth 317 drives the second gear 319 at the bottom to rotate. The second gear 319 meshes with the first gear 213, thereby driving the first gear 213 to rotate. The first gear 213 drives the second threaded rod 211 to rotate through the connecting rod 215 at the top. The threaded sleeve 212 moves downward along the second threaded rod 211. The downward movement of the threaded sleeve 212 drives the rotating plate 224 to rotate. The rotating plate 224 pushes the static pressure sampling cylinder 223 to extend outward along the first sliding seat 222. The static pressure sampling cylinder 223 then... The sample port passes through the first feed port 221 and contacts the soft soil layer. Under static pressure, the soft soil slowly enters the static pressure sampling cylinder 223. Since the static pressure sampling cylinder 223 is equipped with a sealing gasket, it can effectively prevent the soft soil sample from being lost or disturbed. When the sampling amount reaches the preset value, the controller controls the second motor 218 to reverse, which drives the second threaded rod 211 to reverse. The two threaded sleeves 212 move in opposite directions, and through the rotating plate 224, the static pressure sampling cylinder 223 is driven to retract into the sealing cavity 210, thus completing the collection and sealing of the soft soil sample.

[0036] When the pressure value detected by the pressure sensor 322 is higher than the preset threshold, it is determined to be a hard stratum, hard soil, or rock. At this time, the controller controls the first electric telescopic rod 311 to extend, driving the second mounting plate 217 to move upward along the sliding cylinder 216. The bidirectional clutch gear 314 moves upward under the elastic action of the first spring 318 until the bidirectional clutch gear 314 and the first clutch gear 316 are fully engaged. The second motor 218 is then started. The second motor 218 drives the first pulley 214, the sliding cylinder 216, and the double-groove pulley 312 to rotate via a belt. The double-groove pulley 312 drives the third pulley 315 and the bidirectional clutch gear 314 to rotate via a belt. The bidirectional clutch gear 314 drives the first clutch gear 316 and the second bevel gear 310 to rotate. The second bevel gear 310 and the first bevel gear 310... 7. Engagement drives the first bevel gear 307 and the gear cylinder 308 to rotate. The gear cylinder 308 meshes with the rack 309, which in turn drives the rack 309 and the rotating sampling cylinder 303 to rotate. At the same time, the electric guide rail 305 is activated, which drives the connecting guide rod 304 to move, causing the rotating sampling cylinder 303 to extend outward along the second sliding seat 302. The cutting teeth at the end of the rotating sampling cylinder 303 contact the hard soil layer and cut the hard rock and soil under the action of rotation. The cut rock and soil sample is spirally fed into the rotating sampling cylinder 303 through the internal spiral blades to realize the collection of hard soil layer samples. When the sampling is completed, the controller controls the electric guide rail 305 to drive the rotating sampling cylinder 303 to retract into the sealing cavity 210, and at the same time controls the second motor 218 to stop working, completing the collection of hard soil layer samples.

[0037] After sample collection is completed, the sample retrieval operation is performed. The drive motor at the top of the first threaded rod 203 is started, driving the first threaded rod 203 to rotate counterclockwise, which in turn moves the first mounting plate 204, drilling rod 206 and drill bit 208 upward until the drill bit 208 is completely detached from the stratum and rises to a height that is easy to operate. The operator opens the sealing cap of the drill bit 208 and takes out the static pressure sampling cylinder 223 and the rotating sampling cylinder 303 respectively. The rock and soil samples inside are carefully poured into the sealed sample bag. The sample bag is marked with information such as sampling depth, stratum type, sampling time, and sampling location to ensure that the sample is traceable. The sample retrieval and preservation are then completed.

[0038] Finally, the device is reset and cleaned. After cleaning the static pressure sampling cylinder 223 and the rotating sampling cylinder 303, the device is reset. The second electric telescopic rod 326 is activated to drive the sliding plate 321 and the detection rod 324 to retract into the mounting base 320. The surface of the drill bit 208 and the rock and soil debris at the first feed port 221 and the second feed port 301 are cleaned with cleaning tools. The wear of each component is checked. If the static pressure sampling cylinder 223, the rotating sampling cylinder 303, the drill bit 208 and other components are found to be severely worn, they should be replaced or maintained in time. The controller is turned off, the power supply of the device is cut off, the casters are unlocked, and the device is moved to the designated storage location. The sampling tools and samples are organized to complete the entire sampling operation.

Claims

1. A geological soil and rock sampling device, comprising a mobile platform (1), characterized in that: A drilling mechanism (2) is installed on the side of the mobile platform (1). The drilling mechanism (2) includes: a side plate (201), which is fixedly installed on the top of the mobile platform (1). A sliding groove (202) is provided on the side of the side plate (201), and a first threaded rod (203) is rotatably installed inside the sliding groove (202); and a first mounting plate (204), which is threaded onto the surface of the first threaded rod (203). A first motor (205) is fixedly installed on the top of the mounting plate (204), and a drill rod (206) is rotatably installed on the bottom of the first mounting plate (204). The drill rod (206) is fixedly connected to the output end of the first motor (205). A limiting groove (207) is fixedly installed on the side of the side plate (201). The drill rod (206) is movably connected to the limiting groove (207). A drill bit (208) is fixedly installed on the bottom of the drill rod (206).

2. The geological strata and soil sampling device according to claim 1, characterized in that: The drill bit (208) has a partition (209) fixedly installed inside. There are two partitions (209), and a sealing cavity (210) is provided between the two partitions (209). A second threaded rod (211) is rotatably installed inside the sealing cavity (210), and a threaded sleeve (212) is threaded on the surface of the second threaded rod (211).

3. A geological strata and soil sampling device according to claim 2, characterized in that: The bottom of the inner cavity of the sealed cavity (210) is rotatably mounted with a first gear (213), the top of the first gear (213) is rotatably mounted with a first pulley (214), the top of the first gear (213) is fixedly mounted with a connecting rod (215), the connecting rod (215) passes through the top of the first pulley (214) and is rotatably connected to the first pulley (214), and the top of the connecting rod (215) is fixedly connected to a second threaded rod (211).

4. A geological strata and soil sampling device according to claim 3, characterized in that: A sliding cylinder (216) is fixedly installed on the top of the first pulley (214). A second mounting plate (217) is slidably installed on the surface of the sliding cylinder (216). A second motor (218) is fixedly installed at the bottom of the sealed cavity (210). A sealing cover (219) is provided on the outside of the second motor (218). The output end of the second motor (218) passes through the interior of the sealed cavity (210) and is rotatably connected to the sealed cavity (210). A second pulley (220) is fixedly installed on the output end of the second motor (218). The second pulley (220) is connected to the first pulley (214) through a belt.

5. A geological strata and soil sampling device according to claim 4, characterized in that: The sealing cavity (210) has a first feed port (221) on its side. There are two first feed ports (221). A first sliding seat (222) is fixedly installed on the side of each of the two first feed ports (221). A static pressure sampling cylinder (223) is slidably installed inside the first sliding seat (222). A rotating plate (224) is rotatably installed on the side of the static pressure sampling cylinder (223). The rotating plate (224) is rotatably connected to the threaded sleeve (212).

6. A geological strata and soil sampling device according to claim 5, characterized in that: The sealed cavity (210) is provided with a rigid sampling mechanism (3). The rigid sampling mechanism (3) includes a second inlet (301). There are two second inlets (301). A second sliding seat (302) is fixedly installed on the side of the two second inlets (301). A rotating sampling cylinder (303) is movably installed inside the second sliding seat (302). A connecting guide rod (304) is fixedly installed on the top of the rotating sampling cylinder (303). An electric guide rail (305) is fixedly installed on the top of the sealed cavity (210). The electric guide rail (305) is slidably connected to the connecting guide rod (304).

7. A geological strata and soil sampling device according to claim 6, characterized in that: A fixing rod (306) is fixedly installed on the top of the sealing cavity (210). A first bevel gear (307) is rotatably installed on the side of the fixing rod (306). A gear cylinder (308) is fixedly installed on the side of the first bevel gear (307). A gear rod (309) is slidably installed inside the gear cylinder (308). The side of the gear rod (309) is fixedly connected to the rotating sampling cylinder (303). A second bevel gear (310) is rotatably installed on the bottom of the fixing rod (306). The second bevel gear (310) meshes with the first bevel gear (307).

8. A geological soil and rock sampling device according to claim 7, characterized in that: A first electric telescopic rod (311) is fixedly installed at the bottom of the sealing cavity (210). The telescopic end of the first electric telescopic rod (311) extends into the interior of the sealing cavity (210) and is slidably connected to the sealing cavity (210). The telescopic end of the first electric telescopic rod (311) is fixedly connected to the second mounting plate (217). A double groove pulley (312) is rotatably installed at the bottom of the second mounting plate (217). A rotating rod (313) is rotatably installed at the bottom of the second bevel gear (310). A bidirectional clutch tooth (314) is movably installed on the surface of the rotating rod (313). A third pulley (315) is provided on the surface of the bidirectional clutch tooth (314). The third pulley (315) is connected to the double groove pulley (312) via a belt.

9. A geological strata and soil sampling device according to claim 8, characterized in that: The bottom of the second bevel gear (310) is fixedly mounted with a first clutch tooth (316), and the bottom of the rotating rod (313) is rotatably mounted with a second clutch tooth (317). A first spring (318) is provided between the first clutch tooth (316) and the second clutch tooth (317). The bidirectional clutch tooth (314) is rotatably connected to the second mounting plate (217). The bottom of the second clutch tooth (317) is fixedly mounted with a second gear (319), which meshes with the first gear (213). A mounting seat (320) is provided inside the sealing cavity (210), and the mounting seat (320) is slidably mounted inside. A sliding plate (321) is provided, a pressure sensor (322) is fixedly installed on the side of the sliding plate (321), a sliding guide rod (323) is fixedly installed on the side of the sliding plate (321), a detection rod (324) is slidably installed on the surface of the sliding guide rod (323), a second spring (325) is sleeved between the sliding plate (321) and the detection rod (324), a second electric telescopic rod (326) is fixedly installed on the side of the mounting base (320), the end of the second electric telescopic rod (326) is fixedly connected to the sliding plate (321), and the pressure sensor (322) is connected to the first electric telescopic rod (311) by an electrical signal.

10. A method for sampling soil and rock strata, applicable to the soil and rock sampling device described in claim 9, characterized in that: The steps are as follows: S1: Device debugging and positioning, move the mobile platform (1) to the target sampling position, lock the tires to ensure the device is stable, start the device through the controller, check the operating status of the drilling mechanism (2), hard sampling mechanism (3) and each electrical component, ensure that each component is fault-free, start the second electric telescopic rod (326), drive the sliding plate (321) and the detection rod (324) to extend, so that the detection rod (324) contacts the formation surface, the pressure sensor (322) starts to detect the initial hardness of the formation and transmits the detection signal to the controller, the controller judges the formation type according to the pressure value, and completes the preparation work before sampling; S2: Drilling positioning. Start the drive motor at the top of the first threaded rod (203) to drive the first threaded rod (203) to rotate, causing the first mounting plate (204) to move downward along the sliding groove (202). At the same time, start the first motor (205) to drive the drill rod (206) and drill bit (208) to rotate at high speed. The drill bit (208) drills downward during rotation. The limiting groove (207) guides and limits the drill rod (206) to prevent drilling deviation. During drilling, the detection rod (324) is always in contact with the formation. The pressure sensor (322) detects the formation hardness in real time. Synchronously transmit to the controller until the drill bit (208) reaches the target sampling depth, stop the rotation and descent of the drill rod (206); S3: Sample collection, automatically switch the sampling mode according to the formation hardness signal displayed by the controller: soft soil formation sampling: when the pressure value detected by the pressure sensor (322) is lower than the set threshold, it is determined to be a soft soil formation, the controller controls the extension and retraction of the first electric telescopic rod (311), driving the second mounting plate (217) to move downward, so that the bidirectional clutch tooth (314) meshes with the second clutch tooth (317), start the second motor (218), and drive the second pulley ( 220) rotates, driving the first pulley (214) and sliding cylinder (216) to rotate via a belt. The sliding cylinder (216) drives the double-groove pulley (312) to rotate. The double-groove pulley (312) drives the third pulley (315) and bidirectional clutch gear (314) to rotate via a belt. The bidirectional clutch gear (314) drives the second clutch gear (317) and the second gear (319) to rotate. The second gear (319) drives the first gear (213) to rotate. The first gear (213) drives the second threaded rod (211) to rotate via a connecting rod (215). Threaded sleeve (212) Moving downward along the second threaded rod (211), the two static pressure sampling cylinders (223) are driven to extend outward along the first sliding seat (222) by the rotating plate (224). The sampling port passes through the first feed port (221) and contacts the soft soil layer. The soft soil enters the static pressure sampling cylinder (223) under static pressure. After the collection is completed, the second motor (218) is controlled to reverse, which drives the second threaded rod (211) to reverse and the threaded sleeve (212) to move in the opposite direction. The rotating plate (224) drives the static pressure sampling cylinder (223) to retract into the sealing cavity (210), thus completing the collection and sealing of the soft soil sample.Sampling of hard surfaces: When the pressure value detected by the pressure sensor (322) is higher than the set threshold, it is determined to be a hard surface. The controller controls the first electric telescopic rod (311) to extend, driving the second mounting plate (217) to move upward, so that the bidirectional clutch tooth (314) meshes with the first clutch tooth (316), starting the second motor (218), driving the second pulley (220) to rotate, which in turn drives the first pulley (214) and the sliding cylinder (216) to rotate via the belt. The sliding cylinder (216) drives the second mounting plate (217) and the double groove pulley (312) to rotate. The double groove pulley (312) drives the third... The pulley (315) and the bidirectional clutch gear (314) rotate, which in turn drives the first clutch gear (316) and the second bevel gear (310) to rotate. The second bevel gear (310) drives the first bevel gear (307) and the gear cylinder (308) to rotate. The gear cylinder (308) drives the rack (309) and the rotating sampling cylinder (303) to rotate. At the same time, the electric guide rail (305) is activated, driving the connecting guide rod (304) to move, which in turn drives the rotating sampling cylinder (303) to extend outward along the second sliding seat (302). The sampling port passes through the second feed port (301) and contacts the hard layer. The rotating sampling cylinder (303) The hard soil and rock sample is cut and spirally fed into the sampling tube by the cutting teeth at the end and the internal spiral blades. After the sample is collected, the electric guide rail (305) is controlled to drive the rotating sampling tube (303) to retract, and the second motor (218) is controlled to stop rotating, thus completing the collection of hard stratum samples; S4: The sample is taken out, and the drive motor at the top of the first threaded rod (203) is started to drive the first threaded rod (203) to reverse, which drives the first mounting plate (204), drilling rod (206) and drill bit (208) to move upward until the drill bit (208) leaves the stratum and rises to a suitable height, and the seal of the drill bit (208) is opened. S5: Reset and clean the device. Reset the static pressure sampling cylinder (223) and the rotating sampling cylinder (303), start the second electric telescopic rod (326), drive the detection rod (324) to retract into the mounting base (320), clean the rock and soil debris on the surface of the drill bit (208), check the wear of each component, replace or maintain the severely worn components, turn off all electrical components, unlock the tires, move the device to the designated storage location, and complete the sampling operation.

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