Drilling equipment for underwater rock and soil and underwater rock and soil exploration method

Abstract

The invention discloses drilling equipment for underwater rock and soil and an underwater rock and soil exploration method.The drilling equipment comprises a connecting plate, a mounting frame is arranged at the top end of the connecting plate, a lifting mechanism is arranged in the mounting frame, a speed reducer is arranged at one end of the lifting mechanism, a supporting frame is arranged at the top end of the speed reducer, and a second motor is arranged at the top end of the supporting frame; a limiting cleaning mechanism is arranged at the top end of the connecting plate, and a drilling hole is formed in the top end of the connecting plate; the limiting cleaning mechanism comprises a sliding shaft, a spiral disc, a spiral strip, a sliding strip, a spiral block, a limiting cleaning block, a third motor and a bevel gear, the sliding shaft is arranged at the top end of the connecting plate, and the spiral disc is arranged on the inner wall of the sliding shaft. The sampling rod is automatically limited and fixed in the sampling process through the limiting and cleaning mechanism, shaking or deviation of the sampling rod in the drilling process is prevented, the sampling accuracy is improved, meanwhile, residual moisture on the sampling rod can be removed after sampling, the influence of the moisture on a sample is reduced, and the sample quality is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of underwater rock and soil exploration, and specifically relates to a drilling device for underwater rock and soil and an underwater rock and soil exploration method. Background Art

[0002] Underwater geotechnical drilling equipment mainly refers to mechanical equipment installed on floating docks, special ships or submersibles for geotechnical drilling operations in underwater environments. Underwater geotechnical drilling equipment is widely used in many fields such as marine resource development, underwater engineering construction, and water environment management. For example, in offshore oil exploration, underwater drilling rigs can be used to drill seabed core samples to analyze oil and gas resource reserves; in underwater tunnel and bridge construction, they can be used for geological exploration and anchoring construction.

[0003] Existing underwater rock and soil drilling equipment lacks an effective limiting and fixing mechanism during the drilling process. It is easy to shake or shift due to complex geological conditions, vibration and other factors. This instability not only increases the difficulty of operation, but also seriously affects the accuracy of sampling. It may cause the collected samples to fail to truly reflect the characteristics of the target formation, thereby reducing the value of research or analysis. After the sampling is completed, there is often a lack of effective treatment measures for the residual moisture on the sampling rod. The sampling rod will inevitably be contaminated with groundwater or other liquids during the drilling process. If this residual moisture is not removed in time, it will continue to affect the purity and stability of the sample during transportation, storage and subsequent analysis. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide a drilling equipment for underwater rock and soil and an underwater rock and soil exploration method that integrates efficient drilling, flexible adjustment, automatic limit fixation and cleaning.

[0005] Technical solution: The drilling equipment for underwater rock and soil described in the present invention includes a connecting plate, a mounting frame, a limit cleaning mechanism and a drilling hole are arranged on the connecting plate, a lifting mechanism is arranged in the mounting frame, and the lifting mechanism is connected to the reducer; one end of the reducer is connected to the second motor through the support frame, and the other end is connected to the sampling rod through the connecting shaft; the sampling rod can pass through the drilling hole; the limit cleaning mechanism includes a sliding shaft, a screw disk, a screw strip, a sliding bar, a screw block, a limit cleaning block, a third motor and a bevel gear, the sliding shaft is arranged at the top end of the connecting plate, the screw disk is slidably connected to the sliding shaft, the screw strip is arranged at the bottom end of the screw disk, the sliding bar is arranged on the connecting plate, the screw block is slidably connected to the sliding bar, the limit cleaning block is arranged at the end of the screw block close to the center of the screw disk, and the output shaft of the third motor is connected to the bevel gear.

[0006] Furthermore, the sliding axes are distributed in a circular array with the center of the drilling hole as the center.

[0007] Furthermore, a slide groove is arranged on the inner wall of the sliding shaft, a sliding block matching the slide groove is arranged on the outer wall of the screw disk, the sliding shaft is slidably connected to the screw disk, and the screw strips are distributed in a circular array with the center of the drilling hole as the center.

[0008] Furthermore, the number of the slide bars is the same as that of the screw bars, and a slide groove is provided at the bottom end of the screw block, and the screw block is slidably installed on the outer side of the slide bar through the slide groove.

[0009] Furthermore, a plurality of groups of teeth 1 are arranged at the top of the screw disk, and the teeth 1 are meshed and connected with the helical gear.

[0010] Furthermore, a plurality of groups of tooth grooves 1 are arranged at the top of the screw block, and the screw strips are meshedly connected with the tooth grooves 1.

[0011] Furthermore, the lifting mechanism includes a first mounting shaft, a chain, a second mounting shaft, a first connecting rod, a first sprocket, a handwheel, a second sprocket, a second connecting rod and a mounting seat. The first mounting shaft and the second mounting shaft are respectively rotatably mounted at the top and bottom ends inside the mounting frame and are connected through a chain transmission. The first connecting rod is rotatably mounted inside the mounting frame and is located above the second mounting shaft. The first sprocket is arranged on the outside of the first connecting rod, the handwheel is connected to the first connecting rod, the second sprocket is meshed and connected to the outside of the chain, and the second connecting rod passes through the second sprocket and is rotatably mounted inside the mounting seat.

[0012] Furthermore, the first installation axis and the second installation axis are symmetrically distributed relative to the central axis of the mounting frame, the outer wall of the chain is provided with several groups of tooth grooves 2, the outer wall of the first sprocket is provided with several groups of teeth 2, and the chain is meshed and connected with the first sprocket.

[0013] Furthermore, the outer wall of the second sprocket is provided with a plurality of groups of teeth three, the mounting seat is sleeved on the outer side of the mounting frame, and the reducer is arranged on the side wall of the mounting seat.

[0014] The underwater geotechnical exploration method of the above-mentioned drilling equipment for underwater geotechnical exploration comprises the following steps:

[0015] S1. Install the connecting plate on the shipboard or on the shore, place the drilling hole above the water surface, and install the sampling rod at the bottom end of the connecting shaft;

[0016] S2. Rotate the hand wheel of the lifting mechanism to lower the position of the mounting seat of the lifting mechanism;

[0017] S3, after the sampling rod contacts the rock and soil at the bottom of the water source, the second motor is started, and the second motor drives the sampling rod to rotate to collect samples from the rock and soil, so that the rock and soil samples fall into the inner cavity of the sampling rod;

[0018] S4, start the third motor so that the limit cleaning block can contact the outer wall of the sampling rod and limit and fix it. After the sampling rod collects soil samples, the limit cleaning block absorbs the water retained on the sampling rod;

[0019] S5. Rotate the hand wheel of the lifting mechanism to lift the mounting seat of the lifting mechanism, take out the sampling rod, and detect the rock and soil inside the sampling rod.

[0020] Working principle: The connecting plate is the foundation of the whole equipment and is fixed on the shipboard or the shore to ensure the stability of the equipment. A lifting mechanism is arranged inside the mounting frame to adjust the height of the sampling rod. The lifting mechanism drives the first connecting rod and the first sprocket through the hand wheel, driving the chain to move along the first mounting axis and the second mounting axis, thereby lifting or lowering the second sprocket and the mounting seat, reducer, support frame, second motor, connecting axis and sampling rod connected thereto. The reducer and the second motor drive the sampling rod to rotate to realize drilling sampling. The limit cleaning mechanism drives the bevel gear through the third motor to drive the screw disk to rotate, further driving the screw strip and the screw block to cooperate, so that the limit cleaning block is close to the sampling rod for limit fixing and cleaning, and fixing the connecting plate in an appropriate position to ensure that the drilling hole is on the water surface. At the top, install the sampling rod and then connect the bottom end of the shaft to prepare for drilling. Rotate the handwheel to drive the chain to move through the first connecting rod and the first sprocket. The movement of the chain drives the second sprocket and the mounting seat to rise or fall, thereby driving the sampling rod to approach or move away from the underwater rock and soil. When the sampling rod contacts the underwater rock and soil, start the second motor, and the motor drives the reducer to drive the sampling rod to rotate, and drill and sample the rock and soil. Start the third motor, and drive the screw disk to rotate through the bevel gear. The screw disk drives the screw to rotate. The screw bar cooperates with the screw block to move the limit cleaning block toward the sampling rod, limit and fix it, and remove the residual moisture on the sampling rod. After sampling is completed, lift the sampling rod and take it out of the drilling hole, and further detect and analyze the rock and soil samples inside the sampling rod.

[0021] Beneficial effects: Compared with the prior art, the present invention has the following significant features:

[0022] 1. The present invention introduces structures such as a sliding shaft, a screw disk, and a screw strip, which are used in conjunction with a third motor and a bevel gear to achieve the automatic limit fixing and cleaning functions of the sampling rod during the drilling process. When the sampling rod penetrates into the rock and soil for sampling, the third motor is started, and the screw disk is driven to rotate through the bevel gear, thereby driving the screw strip to engage with the screw block, so that the limit cleaning block automatically moves toward the sampling rod, which not only stabilizes the position of the sampling rod and prevents it from shaking during the sampling process, but also can clean the residual moisture on the sampling rod after the sampling is completed, thereby reducing the interference of moisture on the sample and improving the quality and accuracy of the sample;

[0023] 2. The ingenious coordination of the first mounting axis, chain, second mounting axis and other structures significantly improves the height adjustment capability of the device during drilling sampling. The user can simply rotate the hand wheel to drive the chain to move along the first mounting axis and the second mounting axis, thereby achieving precise control of the height of the sampling rod. This is not only suitable for ship operations, but also for shore operations, ensuring effective sampling of the bottom rock and soil under different water depths, greatly improving the flexibility and efficiency of sampling;

[0024] 3. While ensuring high flexibility in drilling sampling, the present invention also takes into account the stability of the sampling process and the cleanliness of the samples. This integrated design concept enables the drilling equipment of the present invention to significantly improve work efficiency and reduce the complexity of manual operation in practical applications. At the same time, it ensures that the rock and soil samples obtained are more representative and accurate, providing more reliable data support for subsequent exploration and analysis work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 is a connection diagram of the drilling hole 10 of the present invention;

[0027] Figure 3 It is an exploded view of the upper part of the lifting mechanism 3 of the present invention;

[0028] Figure 4 It is an exploded view of the lower half of the lifting mechanism 3 of the present invention;

[0029] Figure 5 It is a schematic structural diagram of the position limiting cleaning mechanism 9 of the present invention;

[0030] Figure 6 It is a bottom view of the position limiting cleaning mechanism 9 of the present invention;

[0031] Figure 7 It is an exploded view of the sliding shaft 901, the screw disk 902, and the screw strip 903 of the present invention;

[0032] Figure 8 It is an exploded view of the screw strip 903, the slide bar 904, and the screw block 905 of the present invention. DETAILED DESCRIPTION

[0033] like Figures 1-2, a mounting frame 2 is fixedly installed on the top of the connecting plate 1 of the underwater geotechnical drilling equipment, and a lifting mechanism 3 is arranged inside the mounting frame 2. A reducer 4 is fixedly installed on the mounting seat 309 of the lifting mechanism 3, and a support frame 5 is fixedly installed on the top of the reducer 4, and a second motor 6 is fixedly installed on the top of the support frame 5. A limited cleaning mechanism 9 is fixedly installed on the top of the connecting plate 1, and a drilling hole 10 is opened on the top of the connecting plate 1. The connecting plate 1 serves as the basic supporting structure of the entire equipment. The connecting plate 1 is responsible for firmly connecting other parts of the equipment together to ensure stability and safety during the drilling process. The reducer 4 plays a role in protecting the motor and increasing the torque, thereby extending the service life of the equipment. The support frame 5 provides a stable mounting platform for the second motor 6 to ensure that the motor does not generate excessive vibration and displacement during operation. The bottom end of the reducer 4 is fixedly connected to a connecting shaft 7, and a sampling rod 8 is fixedly installed on the bottom end of the connecting shaft 7. The output shaft of the reducer 4 is connected to the connecting shaft 7, which converts the high-speed rotation of the second motor 6 into the low-speed and high-torque rotation of the sampling rod 8 to meet the needs of drilling operations. The sampling rod 8 directly contacts the rock and soil for drilling sampling.

[0034] like Figures 3-4The lifting mechanism 3 includes a first mounting shaft 301, a chain 302, a second mounting shaft 303, a first connecting rod 304, a first sprocket 305, a hand wheel 306, a second sprocket 307, a second connecting rod 308 and a mounting seat 309. The first mounting shaft 301 and the second mounting shaft 303 are rotatably mounted on the top and bottom ends of the mounting frame 2, respectively, and are connected by transmission through the chain 302. The first connecting rod 304 is rotatably mounted on the inside of the mounting frame 2 and is located above the second mounting shaft 303. The first sprocket 305 is fixedly mounted on the outside of the first connecting rod 304. The hand wheel 306 is fixedly connected to one end of the first connecting rod 304. The second sprocket 307 is meshedly connected to the outside of the chain 302. The second connecting rod 308 passes through the second sprocket 307 and is rotatably mounted on the inside of the mounting seat 309. The first installation shaft 301 and the second installation shaft 303 are symmetrically distributed relative to the central axis of the installation frame 2. The outer wall of the chain 302 is provided with a plurality of sets of tooth grooves 2, and the outer wall of the first sprocket 305 is provided with a plurality of sets of teeth 2. The chain 302 is meshedly connected with the first sprocket 305. The outer wall of the second sprocket 307 is provided with a plurality of sets of teeth 3. The installation seat 309 is sleeved on the outer side of the installation frame 2, and the reducer 4 is fixedly installed on the side wall of the installation seat 309. By fixing the connecting plate 1 on the shipboard or the shore, and positioning the drilling hole 10 above the water surface, the sampling rod 8 is installed at the bottom end of the connecting shaft 7. The position of the mounting seat 309 can drive the reducer 4, the support frame 5, the second motor 6, the connecting shaft 7 and the sampling rod 8 to be lifted when the mounting seat 309 is lifted and lowered, so that the sampling rod 8 can contact the rock and soil at the bottom of the water source. Then, the second motor 6 is started, and the second motor 6 can drive the sampling rod 8 to rotate and collect samples of the rock and soil, so that the rock and soil samples are trapped in the inner cavity of the sampling rod 8. After the sampling is lifted, the sampling rod 8 can be taken out, and the rock and soil inside the sampling rod 8 can be detected. By rotating the handwheel 306, the handwheel 306 can drive the first connecting rod 304 and the first sprocket 305 to rotate, so that when the first sprocket 305 rotates, it drives the chain 302 engaged with itself to move, so that the chain 302 moves through the first installation axis 301 and the second installation axis 303, so that when the chain 302 moves, the position of the second sprocket 307 can be lifted through its own shape, and then the position of the mounting seat 309 can be lifted, and when the handwheel 306 is rotated in the opposite direction, the position of the mounting seat 309 can be lowered.

[0035] like Figures 5 to 8, the position-limiting cleaning mechanism 9 comprises a sliding shaft 901, a screw disc 902, a screw bar 903, a slide bar 904, a screw block 905, a position-limiting cleaning block 906, a third motor 907 and a bevel gear 908. The sliding shaft 901 is fixedly mounted on the top of the connecting plate 1, the screw disc 902 is slidably mounted on the inner wall of the sliding shaft 901, the screw bar 903 is fixedly mounted on the bottom end of the screw disc 902, the slide bar 904 is fixedly mounted on the top of the connecting plate 1, the screw block 905 is slidably mounted on the outside of the slide bar 904, and the position-limiting cleaning block 906 is fixedly mounted on the end of the screw block 905. The sliding shaft 901 has an inner diameter of 40mm, an outer diameter of 90mm, and a width of 23mm. The diameter of the screw disc 902 is 20mm. The thread diameter of the screw bar 903 is 10mm, and the lead is 3mm. The third motor 907 is located on one side of the sliding shaft 901, and the bevel gear 908 is connected to the output end of the third motor 907. Six sliding shafts 901 are provided, and they are distributed in a circular array with the center of the drilling hole 10 as the center. The inner wall of the sliding shaft 901 is provided with a sliding groove, and the outer wall of the screw plate 902 is provided with a slider matching the sliding groove. The sliding shaft 901 is slidably connected with the screw plate 902. Three screw strips 903 are provided, and they are distributed in a circular array with the center of the drilling hole 10 as the center. The number and position of the sliding strips 904 match the screw strips 903. The bottom end of the screw block 905 is provided with a sliding groove, and the screw block 905 is slidably installed on the outside of the sliding strips 904 through the sliding groove. The top of the screw plate 902 is provided with a plurality of groups of teeth 909, which are meshed with the bevel gear 908. The top of the screw block 905 is provided with a plurality of groups of tooth grooves 910, and the screw strips 903 are meshed with the screw block 905. By starting the third motor 907, the third motor 907 can drive the bevel gear 908 to rotate, and the bevel gear 908 can drive the screw plate 902 to rotate about the central axis of the slide groove of the slide shaft 901 through its own shape when rotating. When the screw plate 902 rotates, it can drive the screw strip 903 at the bottom to rotate, and then the shape of the screw strip 903 is meshed with the top of the screw block 905 to drive the screw block 905 to move toward the central axis of the slide shaft 901 through the shape of the slide bar 904, so that the limiting cleaning block 906 can contact the outer wall of the sampling rod 8 located in the inner cavity of the drilling hole 10 and limit and fix it, and after the sampling rod 8 collects soil samples, the limiting cleaning block 906 can absorb the water retained on the sampling rod 8.

[0036] An underwater geotechnical exploration method for underwater geotechnical drilling equipment comprises the following steps:

[0037] S1. Fix the connecting plate 1 on the shipboard or the shore, and place the drilling hole 10 above the water surface, and install the sampling rod 8 on the bottom end of the connecting shaft 7.

[0038] S2. Rotate the handwheel 306. When the handwheel 306 rotates, it drives the first connecting rod 304 and the first sprocket 305 to rotate. When the first sprocket 305 rotates, it drives the chain 302 meshing with itself to move. The chain 302 moves through the first installation axis 301 and the second installation axis 303. When the chain 302 moves, its shape can drive the second sprocket 307 to be lifted, and then the position of the mounting seat 309 can be lifted. When the handwheel 306 is rotated in the opposite direction, the position of the mounting seat 309 can be lowered.

[0039] S3, the position of the mounting seat 309 can drive the reducer 4, the support frame 5, the second motor 6, the connecting shaft 7 and the sampling rod 8 to be lifted when it is lifted or lowered, so that the sampling rod 8 can contact the rock and soil at the bottom of the water source and then start the second motor 6. The second motor 6 can drive the sampling rod 8 to rotate and collect samples from the rock and soil, so that the rock and soil samples fall into the inner cavity of the sampling rod 8.

[0040] S4. Start the third motor 907. The third motor 907 can drive the bevel gear 908 to rotate. When the bevel gear 908 rotates, it can drive the screw plate 902 to rotate about the central axis of the slide groove of the sliding shaft 901 through its own shape. When the screw plate 902 rotates, it can drive the screw strip 903 at the bottom to rotate, and then the shape of the screw strip 903 is engaged with the top of the screw block 905 to drive the screw block 905 to move toward the central axis of the sliding shaft 901 through the shape of the slide strip 904, so that the limiting cleaning block 906 can contact the outer wall of the sampling rod 8 located in the inner cavity of the drilling hole 10 and limit and fix it. After the sampling rod 8 collects soil samples, the limiting cleaning block 906 can absorb the water retained on the sampling rod 8.

[0041] S5. After the sampling is lifted, the sampling rod 8 can be taken out, and the rock and soil inside the sampling rod 8 can be detected.

Claims

1. A drilling device for underwater rock and soil, characterized in that: The invention comprises a connecting plate (1), a mounting frame (2), a position limiting cleaning mechanism (9) and a drilling hole (10) are arranged on the connecting plate (1), a lifting mechanism (3) is arranged inside the mounting frame (2), and the lifting mechanism (3) is connected to a reducer (4); one end of the reducer (4) is connected to a second motor (6) through a supporting frame (5), and the other end is connected to a sampling rod (8) through a connecting shaft (7); the sampling rod (8) can pass through the drilling hole (10); the position limiting cleaning mechanism (9) comprises a sliding shaft (901), a screw plate (902), a screw strip (903), a sliding strip (904), a screw block (905), and a plurality of screws (906). ), a limit cleaning block (906), a third motor (907) and a bevel gear (908), the sliding shaft (901) is arranged at the top end of the connecting plate (1), the screw disk (902) is slidably connected to the sliding shaft (901), the screw bar (903) is arranged at the bottom end of the screw disk (902), the slide bar (904) is arranged on the connecting plate (1), the screw block (905) is slidably connected to the slide bar (904), the limit cleaning block (906) is arranged at the end of the screw block (905) close to the center of the screw disk (902), and the output shaft of the third motor (907) is connected to the bevel gear (908).

2. The underwater rock drilling equipment according to claim 1, characterized in that: The sliding shafts (901) are distributed in a circular array with the center of the drilling hole (10) as the center.

3. The underwater rock drilling equipment according to claim 1, characterized in that: The inner wall of the sliding shaft (901) is provided with a sliding groove, the outer wall of the screw disc (902) is provided with a sliding block matching the sliding groove, the sliding shaft (901) is slidably connected to the screw disc (902), and the screw strips (903) are distributed in a circular array with the center of the drilling hole (10) as the center.

4. The underwater rock drilling equipment according to claim 1, characterized in that: The number of the slide bars (904) is the same as that of the screw bars (903), and a slide groove is provided at the bottom end of the screw block (905), and the screw block (905) is slidably installed on the outer side of the slide bar (904) through the slide groove.

5. The underwater rock drilling equipment according to claim 1, characterized in that: The top of the screw disk (902) is provided with a plurality of groups of teeth one (909), and the teeth one (909) are meshedly connected with the bevel gear (908).

6. The underwater rock drilling equipment according to claim 1, characterized in that: The top of the screw block (905) is provided with a plurality of groups of tooth grooves (910), and the screw strip (903) is meshingly connected with the tooth grooves (910).

7. The underwater rock drilling equipment according to claim 1, characterized in that: The lifting mechanism (3) comprises a first mounting shaft (301), a chain (302), a second mounting shaft (303), a first connecting rod (304), a first sprocket (305), a hand wheel (306), a second sprocket (307), a second connecting rod (308) and a mounting seat (309); the first mounting shaft (301) and the second mounting shaft (303) are rotatably mounted at the top and bottom ends of the mounting frame (2) respectively and are connected by transmission via the chain (302); the first connecting rod (304) is rotatably mounted inside the mounting frame (2) and is located above the second mounting shaft (303); the first sprocket (305) is arranged outside the first connecting rod (304); the hand wheel (306) is connected to the first connecting rod (304); the second sprocket (307) is meshedly connected to the outside of the chain (302); the second connecting rod (308) passes through the second sprocket (307) and is rotatably mounted inside the mounting seat (309).

8. The underwater rock drilling equipment according to claim 7, characterized in that: The first installation shaft (301) and the second installation shaft (303) are symmetrically distributed relative to the central axis of the installation frame (2); the outer wall of the chain (302) is provided with a plurality of groups of tooth grooves; the outer wall of the first sprocket (305) is provided with a plurality of groups of teeth; the chain (302) is meshingly connected with the first sprocket (305).

9. The underwater rock drilling equipment according to claim 7, characterized in that: The outer wall of the second sprocket (307) is provided with a plurality of groups of teeth three, the mounting seat (309) is sleeved on the outer side of the mounting frame (2), and the reducer (4) is arranged on the side wall of the mounting seat (309).

10. An underwater geotechnical exploration method using a drilling device for underwater geotechnical exploration according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Install the connecting plate (1) on the shipboard or on the shore, and place the drilling hole (10) above the water surface, and install the sampling rod (8) at the bottom end of the connecting shaft (7); S2, rotating the hand wheel (306) of the lifting mechanism (3) to drive the mounting seat (309) of the lifting mechanism (3) to lower its position; S3, after the sampling rod (8) contacts the rock and soil at the bottom of the water source, the second motor (6) is started, and the second motor (6) drives the sampling rod (8) to rotate and collect samples from the rock and soil, so that the rock and soil samples fall into the inner cavity of the sampling rod (8); S4, starting the third motor (907) so that the limiting cleaning block (906) can contact the outer wall of the sampling rod (8) and limit and fix it. After the sampling rod (8) collects the soil sample, the limiting cleaning block (906) absorbs the water retained on the sampling rod (8); S5. Rotate the hand wheel (306) of the lifting mechanism (3) to lift the mounting seat (309) of the lifting mechanism (3), take out the sampling rod (8), and detect the rock and soil inside the sampling rod (8).

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