A landslide sliding surface soil sampling device

Abstract

The application relates to the technical field of sampling devices, and specifically discloses a landslide sliding surface soil sampling device which comprises a rolling wheel, a flexible plate is arranged on the outer wall of the rolling wheel, a plurality of through holes are formed in the length direction of the top of the flexible plate, a sampling cylinder is movably arranged in one of the through holes, two supporting rods are arranged on the inner wall of the sampling cylinder, feeding holes are formed in the inner walls of the two sides of the sampling cylinder, the feeding holes are located below the supporting rods, sealing plates are arranged on the sides of the two feeding holes in the sampling cylinder, the top ends of the sealing plates are slidably arranged on the outer walls of the two supporting rods, electromagnet blocks are arranged on the outer walls of the supporting rods, and the electromagnet blocks are located between the two sealing plates. The landslide sliding surface soil sampling device can be used by the staff to accurately sample the soil at the specified position and the specified depth of the landslide sliding surface, so that the detection result of the soil is more accurate.

Description

Technical Field

[0001] This invention relates to the field of sampling equipment technology, and in particular to a soil sampling device for landslide sliding surfaces. Background Technology

[0002] Recent landslides refer to landslides that are still actively moving or have recently ceased activity but still pose a risk of sliding. These landslides may be caused by factors such as river erosion, groundwater activity, rainwater soaking, earthquakes, and artificial slope cutting. Under the influence of gravity, they slide down a specific weak surface or zone, either entirely or partially. After determining the basic information such as the extent of the landslide and the sliding surface through on-site investigation, soil sampling, surveying, geophysical exploration, and drilling, the physical parameters and mechanical properties of the sliding zone soil, sliding body soil, and sliding bed soil are measured through in-situ tests and laboratory tests.

[0003] The soil on the recently landslide slope is prone to landslides at any time, and the soil is relatively loose. When it is necessary to sample the soil on the landslide slope, the staff cannot stand on the landslide slope, so the soil can only be sampled from a safe position near the top of the landslide slope. Due to the limitations of sampling and location of the slip zone soil, the parameters of the slip zone soil measured by the test method deviate from the actual situation and cannot be used directly. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a soil sampling device for landslide sliding surfaces.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A soil sampling device for landslide sliding surfaces includes a rolling wheel. A flexible plate is wound around the outer wall of the rolling wheel. Several through holes are opened along the length of the top of the flexible plate. A sampling tube is movably installed inside one of the through holes. Two support rods are installed on the inner wall of the sampling tube. Feed holes are opened on both sides of the inner wall of the sampling tube and are located below the support rods. Sealing plates are installed on the sides of the two feed holes inside the sampling tube. The top of the sealing plates is slidably installed on the outer wall of the two support rods. An electromagnet block is installed in the middle of the outer wall of the support rods and is located between the two sealing plates.

[0007] Preferably, the flexible plate has several mounting slots on both sides, a support plate is installed inside the mounting slot, one end of the support plate passes through the mounting slot and a rotating plate is rotatably mounted thereon, a groove is provided on the top of the rotating plate near the flexible plate, a magnet is installed on the inner wall of the groove, and several fixing teeth are installed on the top of the rotating plate away from the flexible plate.

[0008] Preferably, a baffle is installed at the middle of the inner wall of the rolling wheel, and an electromagnetic coil is installed at both ends of the baffle. The two electromagnetic coils are respectively installed on the inner walls of the two ends of the rolling wheel. A placement groove is opened on the side of the baffle, and a dual-axis motor is installed on the inner wall of the placement groove. A sleeve is installed on both output shafts of the dual-axis motor.

[0009] Preferably, the ends of the two sleeves away from the dual-axis motor are both penetrated by a baffle. A sleeve rod is slidably installed inside the sleeve, with one end of the sleeve rod penetrating the sleeve. A rotating shell is installed at the ends of the two sleeve rods away from the rolling wheel. Sliding grooves are formed on the inner walls of both sides of the sleeve along the length direction. Sliding blocks are installed on both sides of the outer wall of the end of the sleeve rod located inside the sleeve, and the sliding blocks are slidably installed inside the sliding groove.

[0010] Preferably, the flexible plate has fixing grooves on both sides of its bottom along its length, and a plurality of screw holes are formed in the top of the fixing grooves. The top of the screw holes penetrates the support plate and the flexible plate, and screws are installed in the internal threads of the screw holes. A second anti-slip pad is installed inside each of the two fixing grooves, and the bottom of the second anti-slip pad penetrates the fixing groove.

[0011] Preferably, the top two sides of the rolling wheel are each equipped with a first anti-slip pad along the length direction, and several through holes are located between two first anti-slip pads. The two ends of the screw abut against the opposite surfaces of the first and second anti-slip pads, respectively.

[0012] Preferably, a pedal is installed on the top outer wall of the sampling tube, a sealing cap is installed on the top of the sampling tube, the bottom end of the sealing cap is located inside the sampling tube, and anti-slip textures are provided at both ends of the top of the pedal.

[0013] Preferably, a fixing plate is installed at the end of the flexible plate away from the rolling wheel, and fixing holes are provided at both ends of the top of the fixing plate. A limit plate is installed at the bottom middle of the fixing plate away from the flexible plate.

[0014] Preferably, the outer walls of both rotating shells are provided with several anti-slip grooves, the rotating plate away from the fixed plate is located on the side of the rolling wheel, and the magnet block at the top of the rotating plate is located on the side of the electromagnetic coil away from the dual-axis motor.

[0015] Preferably, the rolling wheel is located between two rotating shells, the rotating shells are concave in shape, and the bottom end of the sampling cylinder is conical.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this invention, when workers walk on the top of the flexible plate towards the designated soil sampling location, they lightly step on the rotating plate to increase the depth of the fixing teeth on the rotating plate into the soil. During use, several rotating plates and their fixing teeth can play a certain role in fixing the soil on both sides of the landslide sliding surface located on the flexible plate. This not only fixes the position of the flexible plate but also prevents landslides on both sides of the flexible plate from occurring when workers step on the soil on the landslide sliding surface during sampling. When workers walk on the top of the flexible plate and squeeze the soil with the flexible plate, the flexible plate can disperse the downward pressure of the workers, reducing the squeezing force of the workers on a single location of the soil through the flexible plate, and preventing the soil at the bottom of the flexible plate from collapsing or flowing when workers walk on the top of the flexible plate.

[0018] 2. In this invention, after soil sampling is completed, the flexible plate is wound and installed on the outer wall of the rolling wheel. The end of the rotating plate near the magnet rotates to both ends of the rolling wheel, and the magnet and the electromagnetic coil attract each other. In use, it can effectively fix the position of several rotating plates. The two sides of the rolling wheel and the flexible plate are located inside the two rotating shells respectively. At the same time, the side of several rotating plates away from the rolling wheel abuts against the inner wall of the rotating shell. In use, the rotating shell can not only clamp and protect several rotating plates, but also fix the position of the flexible plate, making the flexible plate more stable when wound and installed on the outer wall of the rolling wheel.

[0019] 3. In this invention, when workers walk on top of the flexible board, their feet are placed on the top of the first anti-slip pads on both sides of the top of the flexible board. The first anti-slip pads provide a good anti-slip effect when workers walk on top of the flexible board, preventing slippage and improving safety during sampling. When workers move on the landslide surface by standing on top of the flexible board, they can press down on the top of the flexible board, causing the second anti-slip pads on both sides of the bottom of the flexible board to press and connect with the soil at the bottom of the flexible board, preventing the flexible board from sliding on the landslide surface when workers stand on top of it, making it more stable for workers to walk on top of the flexible board.

[0020] 4. In this invention, the operator inserts the conical end of the sampling tube through the through hole in the flexible plate and into the soil at the bottom of the flexible plate. The electromagnet pushes two sealing plates to block the feed hole through the magnetic field. When the bottom of the sampling tube is about to move down to the specified depth inside the soil, the operator disconnects the external power supply from the electromagnet. The inner top corner of the feed hole on the sampling tube can scrape the soil around the outer wall of the sampling tube. The scraped soil can then push the sealing plate inside the feed hole, and the soil scraped on the outer wall of the sampling tube can fall into the inside of the sampling tube. The sampling tube can store soil and can accurately sample soil at a specified location and depth on the landslide sliding surface during use, improving the accuracy of soil testing. Attached Figure Description

[0021] Figure 1 This is a perspective view of a landslide sliding surface soil sampling device proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the electromagnetic coil installation structure of a landslide sliding surface soil sampling device proposed in this invention;

[0023] Figure 3 This is a schematic diagram of the rotating plate installation structure of a landslide sliding surface soil sampling device proposed in this invention;

[0024] Figure 4 This is a schematic diagram of the installation structure of the second anti-slip pad of a landslide sliding surface soil sampling device proposed in this invention;

[0025] Figure 5 This is a schematic diagram of the flexible plate structure of a landslide sliding surface soil sampling device proposed in this invention;

[0026] Figure 6 This is a schematic diagram of the rotating plate structure of a landslide sliding surface soil sampling device proposed in this invention;

[0027] Figure 7 This is a cross-sectional view of the rolling wheel of a landslide surface soil sampling device proposed in this invention;

[0028] Figure 8 This is a cross-sectional view of the sleeve of a soil sampling device for landslide sliding surface proposed in this invention;

[0029] Figure 9 This is a cross-sectional view of the sampling cylinder of a landslide sliding surface soil sampling device proposed in this invention;

[0030] Figure 10 This is a schematic diagram of the support rod installation structure of a landslide sliding surface soil sampling device proposed in this invention.

[0031] In the diagram: 1. Rolling wheel; 2. Rotating shell; 3. Flexible plate; 4. Fixing plate; 5. Limiting plate; 6. Fixing hole; 7. Rotating plate; 8. Sampling cylinder; 9. Pedal; 10. Support plate; 11. Electromagnetic coil; 12. Sleeve; 13. Sleeve rod; 14. First anti-slip pad; 15. Through hole; 16. Groove; 17. Magnet block; 18. Fixing tooth; 19. Screw; 20. Second anti-slip pad; 21. Mounting groove; 22. Fixing groove; 23. Screw hole; 24. Baffle; 25. Dual-axis motor; 26. Placement groove; 27. Slide groove; 28. Slider; 29. ​​Sealing cover; 30. Feed hole; 31. Sealing plate; 32. Electromagnetic block; 33. Support rod. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Reference Figure 1-10 A soil sampling device for landslide sliding surfaces includes a rolling wheel 1. A flexible plate 3 is wound and installed on the outer wall of the rolling wheel 1. Several through holes 15 are opened on the top of the flexible plate 3 along its length. A sampling cylinder 8 is movably installed inside one of the through holes 15. Two support rods 33 are installed on the inner wall of the sampling cylinder 8. Feed holes 30 are opened on both sides of the inner wall of the sampling cylinder 8. The feed holes 30 are located below the support rods 33. Sealing plates 31 are installed on the sides of the two feed holes 30 inside the sampling cylinder 8. The top of the sealing plate 31 is slidably installed on the outer wall of the two support rods 33. An electromagnet block 32 is installed in the middle of the outer wall of the support rod 33. The electromagnet block 32 is located between the two sealing plates 31.

[0035] As a technical optimization of the present invention, a plurality of mounting grooves 21 are provided on both sides of the flexible plate 3. A support plate 10 is installed inside the mounting groove 21. One end of the support plate 10 passes through the mounting groove 21 and is rotatably mounted on a rotating plate 7. A groove 16 is provided on the top of the rotating plate 7 near the flexible plate 3. A magnet block 17 is installed on the inner wall of the groove 16. A plurality of fixing teeth 18 are installed on the top of the rotating plate 7 away from the flexible plate 3. When in use, the operator can rotate the rotating plate 7 so that the plurality of fixing teeth 18 on the rotating plate 7 are inserted into the soil of the landslide sliding surface. This can play a certain fixing effect when in use, and at the same time, it can prevent the soil from sliding again when collecting soil samples.

[0036] As a technical optimization of the present invention, a baffle 24 is installed in the middle of the inner wall of the rolling wheel 1, and an electromagnetic coil 11 is installed at both ends of the baffle 24. The two electromagnetic coils 11 are respectively installed on the inner walls of the two ends of the rolling wheel 1. A placement groove 26 is opened on the side of the baffle 24, and a dual-axis motor 25 is installed on the inner wall of the placement groove 26. A sleeve 12 is installed on both output shafts of the dual-axis motor 25. When in use, the dual-axis motor 25 can drive two rotating shells 2 to roll on the landslide sliding surface at the same time. When in use, the two rotating shells 2 can squeeze the soil on both sides of the landslide on the flexible plate 3, which improves the safety performance when the staff stands on the top of the flexible plate 3 to conduct soil sampling.

[0037] As a technical optimization of the present invention, the ends of the two sleeves 12 away from the dual-axis motor 25 both penetrate through the baffle 24. A sleeve rod 13 is slidably installed inside the sleeve 12, with one end of the sleeve rod 13 penetrating through the sleeve 12. A rotating shell 2 is installed at the ends of the two sleeve rods 13 away from the rolling wheel 1. Sliding grooves 27 are provided on the inner walls of both sides of the sleeve 12 along the length direction. Sliding blocks 28 are installed on both sides of the outer wall of the end of the sleeve rod 13 located inside the sleeve 12. The sliding blocks 28 are slidably installed inside the sliding grooves 27. During use, the operator can adjust the distance between the rotating shell 2 and the rolling wheel 1. When the flexible plate 3 is wrapped around the outer wall of the rolling wheel 1, the operator can move the two ends of the rolling wheel 1 and the flexible plate 3 into the interior of the two rotating shells 2 respectively, which can provide better protection and position fixation for the flexible plate 3.

[0038] As a technical optimization of the present invention, the bottom two sides of the flexible plate 3 are provided with fixing grooves 22 along the length direction. The top of the fixing groove 22 is provided with a plurality of screw holes 23. The top of the screw holes 23 passes through the support plate 10 and the flexible plate 3. The screws 19 are installed in the internal threads of the screw holes 23. The two fixing grooves 22 are each provided with a second anti-slip pad 20. The bottom of the second anti-slip pad 20 passes through the fixing groove 22. When the flexible plate 3 is laid on the landslide sliding surface, the second anti-slip pad 20 can make the connection between the flexible plate 3 and the landslide sliding surface more stable, and prevent the flexible plate 3 from sliding and displacing on the landslide sliding surface when the workers stand on the flexible plate 3.

[0039] As a technical optimization of the present invention, the top two sides of the rolling wheel 1 are each equipped with a first anti-slip pad 14 along the length direction, and several through holes 15 are located between two first anti-slip pads 14. The two ends of the screw 19 respectively abut against the opposite surfaces of the first anti-slip pad 14 and the second anti-slip pad 20. When in use, the first anti-slip pad 14 can make the workers more stable when standing on the top of the flexible plate 3, and prevent the workers from slipping when standing on the top of the flexible plate 3 due to the tilting of the flexible plate 3.

[0040] As a technical optimization of the present invention, a pedal 9 is installed on the top outer wall of the sampling tube 8, and a sealing cover 29 is installed on the top of the sampling tube 8. The bottom end of the sealing cover 29 is located inside the sampling tube 8, and anti-slip textures are provided at both ends of the top of the pedal 9. When the staff needs to insert the bottom end of the sampling tube 8 into the soil, the sampling tube 8 can be moved down by stepping on the pedal 9, which can save more physical effort when sampling soil.

[0041] As a technical optimization of the present invention, a fixing plate 4 is installed at the end of the flexible plate 3 away from the rolling wheel 1. Fixing holes 6 are opened at both ends of the top of the fixing plate 4. A limiting plate 5 is installed at the bottom middle of the fixing plate 4 away from the flexible plate 3. When in use, the worker fixes the fixing plate 4 to the top gentle surface of the landslide sliding surface, and the limiting plate 5 at the bottom of the fixing plate 4 is inserted into the ground. When in use, the top of the flexible plate 3 can be fixed in position.

[0042] As a technical optimization of the present invention, several anti-slip grooves are provided on the outer walls of both rotating shells 2. The rotating plate 7 away from the fixed plate 4 is located on the side of the rolling wheel 1, and the magnet block 17 at the top of the rotating plate 7 is located on the side of the electromagnetic coil 11 away from the dual-axis motor 25. When the flexible plate 3 is wrapped around the outer wall of the rolling wheel 1, the magnet blocks 17 on the rotating plates 7 on both sides of the flexible plate 3 are attracted to the side of the electromagnetic coil 11. In use, the electromagnetic coil 11 can fix the position of several rotating plates 7 at the same time, so that the rotating shell 2 can protect several rotating plates 7.

[0043] As a technical optimization of the present invention, the rolling wheel 1 is located between two rotating shells 2, the rotating shell 2 is concave in shape, and the bottom end of the sampling cylinder 8 is conical; when sampling soil through the sampling cylinder 8, the conical bottom end of the sampling cylinder 8 makes it easier to move the sampling cylinder 8 downwards, and the concave rotating shell 2 facilitates the storage of several rotating plates 7 and the two ends of the rolling wheel 1 and the fixation of the position of the flexible plate 3 during use.

[0044] In use, the operator places the rolling wheel 1 on the flat ground at the top of the landslide sliding surface, pulls the rotating shell 2 located at both ends of the rolling wheel 1, and moves the two sides of the flexible plate 3 out of the interior of the rotating shell 2. The operator then pulls the flexible plate 3 close to one end of the fixed plate 4, so that the fixed plate 4 is placed on the ground. At the same time, the limiting plate 5 at the bottom of the fixed plate 4 is inserted into the ground. In use, the operator uses a fixing rod to pass through the fixing hole 6 at the top of the fixed plate 4 and inserts it into the ground. In use, the top of the flexible plate 3 can be fixed in position by the fixed plate 4.

[0045] Workers disconnected the power supply to the electromagnetic coil 11 and simultaneously pushed the rolling wheel 1 towards the landslide surface. The rolling wheel 1 rolled towards the bottom of the landslide surface. At the same time, as the rolling wheel 1 rolled, the flexible plate 3 was laid from the top to the bottom of the landslide surface. As the rolling wheel 1 drove the two rotating shells 2 to roll, the two rotating shells 2 could compress the soil on both sides of the landslide surface located on the flexible plate 3, making the soil on both sides of the landslide surface on the flexible plate 3 more compact than the soil in other parts of the landslide surface. This can prevent the soil on both sides of the flexible plate 3 from collapsing when workers stand on top of the flexible plate 3 to take soil samples.

[0046] When the electromagnetic coil 11 is de-energized, it breaks its magnetic attraction to the magnets 17 on the rotating plates 7. This causes the rotating plates 7 to tilt away from the flexible plate 3 due to their own weight and the weight of the fixing teeth 18 on their top sides. When the flexible plate 3 is laid on the landslide surface, the rotating plates 7 on both sides of the flexible plate 3 can rotate to the landslide surface, and the fixing teeth 18 on the rotating plates 7 can insert into the soil on both sides of the flexible plate 3 on the landslide surface. When workers move on the landslide surface by standing on top of the flexible plate 3, they can press down on the top of the flexible plate 3, causing the second anti-slip pads 20 on both sides of the bottom of the flexible plate 3 to press against the soil at the bottom of the flexible plate 3, preventing the flexible plate 3 from sliding on the landslide surface and making it more stable for workers to walk on top of the flexible plate 3.

[0047] When workers walk on top of the flexible plate 3 towards the designated soil sampling location, they lightly step on several rotating plates 7 on both sides of the flexible plate 3. This increases the depth to which the fixing teeth 18 on the rotating plates 7 penetrate into the soil. During use, the rotating plates 7 and their fixing teeth 18 can provide a certain degree of fixation for the soil on both sides of the landslide sliding surface located on the flexible plate 3. This not only fixes the position of the flexible plate 3 but also prevents landslides on both sides of the flexible plate 3 caused by workers stepping on the soil on the landslide sliding surface during sampling. When workers walk on top of the flexible plate 3 and compress the soil with it, the flexible plate 3 can disperse the downward pressure from the workers, reducing the pressure exerted on a single location of the soil by the workers using the flexible plate 3. This prevents the soil at the bottom of the flexible plate 3 from collapsing or flowing when workers walk on top of the flexible plate 3. When staff walk on top of the flexible board 3, their feet are placed on the top of the first anti-slip pads 14 on both sides of the top of the flexible board 3. Because the landslide sliding surface is inclined, and the flexible board 3 on the landslide sliding surface is also installed at an incline, the first anti-slip pads 14 can play a good anti-slip role when staff walk on top of the flexible board 3, preventing staff from slipping and improving the safety of staff when sampling.

[0048] When workers sample the soil from the landslide surface, they insert the conical end of the sampling tube 8 through the through hole 15 on the flexible plate 3 and into the soil at the bottom of the flexible plate 3. Simultaneously, as the sampling tube 8 moves downwards, the electromagnet block 32 is connected to an external power source, generating a magnetic field. This magnetic field repulsion pushes the two sealing plates 31 towards the inner wall of the sampling tube 8, sealing the inlet hole 30 with their bottom ends. When the bottom of the sampling tube 8 is about to reach the designated depth inside the soil, the workers disconnect the external power source from the electromagnet block 32, causing the magnetic field of the electromagnet block 32 to disappear.

[0049] During use, the operator moves the sampling cylinder 8 further into the soil by stepping on the top of the foot pedal 9. Simultaneously, as the sampling cylinder 8 moves downwards, the inner top corner of the feed hole 30 on the sampling cylinder 8 scrapes the soil around the outer wall of the sampling cylinder 8. The scraped soil then pushes the sealing plate 31 inside the feed hole 30, causing the sealing plate 31 to move along the support rod 33 towards the electromagnet block 32. The soil scraped from the outer wall of the sampling cylinder 8 then falls into the interior of the sampling cylinder 8, where it stores the soil. After soil sampling is complete, the operator can then remove the outer wall of the sampling cylinder. The power supply is connected to the electromagnet block 32, causing the magnetic field generated by the electromagnet block 32 to push the sealing plate 31 towards the inner wall of the sampling tube 8, thus sealing the feed hole 30. The staff can then pull the sampling tube 8 through the pedal 9 to remove the soil and the through hole 15. The staff can then pour the soil inside the sampling tube 8 into a designated container through the top of the sampling tube 8, which is convenient for the staff to conduct subsequent soil experiments. When in use, it can accurately sample the soil at a specified location and depth on the landslide surface, improving the accuracy of soil testing.

[0050] After the workers have finished sampling the soil, the dual-axis motor 25 drives the two rotating shells 2 to rotate on the landslide surface via the sleeve 12 and the rod 13. Simultaneously, it drives the rolling wheel 1 towards the top of the landslide surface. If the slope of the landslide surface is too steep, preventing the rotating shell 2 from driving the rolling wheel 1 upwards, the workers can pull the flexible plate 3 using the fixed plate 4. The flexible plate 3 then pulls the rolling wheel 1 and the rotating shell 2 towards the flatter ground at the top of the landslide surface. The workers energize the electromagnetic coil 11, generating a magnetic field. The workers can then wrap the flexible plate 3 around the outer wall of the rolling wheel 1. Simultaneously, the workers rotate the rotating plates 7 on both sides of the flexible plate 3, causing the end of the rotating plate 7 closest to the magnet 17 to rotate to both ends of the rolling wheel 1. The magnet 17 and the electromagnetic coil 11 attract each other, effectively fixing the position of several rotating plates 7 during use.

[0051] After the workers have fixed the positions of the flexible plate 3 and the rotating plate 7, they can push the two rotating shells 2 towards the rolling wheel 1, so that the two sides of the rolling wheel 1 and the flexible plate 3 are respectively located inside the two rotating shells 2. At the same time, the side of several rotating plates 7 away from the rolling wheel 1 abuts against the inner wall of the rotating shell 2. In use, the rotating shell 2 can not only clamp and protect several rotating plates 7, but also fix the position of the flexible plate 3, making the flexible plate 3 more stable when it is wrapped and installed on the outer wall of the rolling wheel 1.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A soil sampling device for a landslide sliding surface, comprising a rolling wheel (1), characterized in that, A flexible plate (3) is wound around the outer wall of the rolling wheel (1). Several through holes (15) are opened on the top of the flexible plate (3) along the length direction. A sampling cylinder (8) is movably installed inside one of the through holes (15). Two support rods (33) are installed on the inner wall of the sampling cylinder (8). Feed holes (30) are opened on both sides of the inner wall of the sampling cylinder (8). The feed holes (30) are located below the support rods (33). Sealing plates (31) are installed on the sides of the two feed holes (30) inside the sampling cylinder (8). The top of the sealing plate (31) is slidably installed on the outer wall of the two support rods (33). An electromagnet block (32) is installed in the middle of the outer wall of the support rod (33). The electromagnet block (32) is located between the two sealing plates (31). The flexible plate (3) has several mounting slots (21) on both sides. A support plate (10) is installed inside the mounting slot (21). One end of the support plate (10) passes through the mounting slot (21) and is rotatably mounted with a rotating plate (7). A groove (16) is provided on the top of the rotating plate (7) near the flexible plate (3). A magnet block (17) is installed on the inner wall of the groove (16). Several fixing teeth (18) are installed on the top of the rotating plate (7) away from the flexible plate (3). A baffle (24) is installed at the middle of the inner wall of the roller (1). Electromagnetic coils (11) are installed at both ends of the baffle (24). The two electromagnetic coils (11) are respectively installed on the inner walls of the two ends of the roller (1). A placement groove (26) is opened on the side of the baffle (24). A dual-axis motor (25) is installed on the inner wall of the placement groove (26). Sleeves (12) are installed on both output shafts of the dual-axis motor (25). Both sleeves (12) have a baffle (24) at the end away from the dual-axis motor (25). A sleeve rod (13) is slidably installed inside the sleeve (12). One end of the sleeve rod (13) passes through the sleeve (12). A rotating shell (2) is installed at the end of both sleeve rods (13) away from the rolling wheel (1). Slide grooves (27) are opened on the inner walls of both sides of the sleeve (12) in the length direction. Slide blocks (28) are installed on both sides of the outer wall of the end of the sleeve rod (13) inside the sleeve (12). The slide blocks (28) are slidably installed inside the slide grooves (27). A fixing plate (4) is installed at the end of the flexible plate (3) away from the rolling wheel (1). Fixing holes (6) are opened at both ends of the top of the fixing plate (4). A limit plate (5) is installed at the bottom middle of the fixing plate (4) away from the flexible plate (3). Several anti-slip grooves are provided on the outer walls of the two rotating shells (2). The rotating plate (7) away from the fixed plate (4) is located on the side of the rolling wheel (1), and the magnet block (17) at the top of the rotating plate (7) is located on the side of the electromagnetic coil (11) away from the dual-axis motor (25). When the sampling cylinder (8) moves down, the electromagnet block (32) is connected to the external power source, so that the electromagnet block (32) generates a magnetic field and pushes the two sealing plates (31) towards the inner wall of the sampling cylinder (8) through the magnetic field repulsion force, so that the bottom end of the sealing plate (31) blocks the feed hole (30). When the flexible plate (3) is wrapped around the outer wall of the rolling wheel (1), the magnet block (17) on the rotating plate (7) on both sides of the flexible plate (3) is attracted to the side of the electromagnetic coil (11).

2. The landslide sliding surface soil sampling device according to claim 1, characterized in that, The flexible plate (3) has a fixing groove (22) on both sides of its bottom along the length direction. Several screw holes (23) are opened in the top of the fixing groove (22). The top of the screw hole (23) passes through the support plate (10) and the flexible plate (3). The screw hole (23) is threaded with a screw (19). A second anti-slip pad (20) is installed in the inside of both fixing grooves (22). The bottom of the second anti-slip pad (20) passes through the fixing groove (22).

3. A soil sampling device for landslide sliding surface according to claim 2, characterized in that, The top two sides of the roller (1) are each equipped with a first anti-slip pad (14) along the length direction. Several through holes (15) are located between two first anti-slip pads (14). The two ends of the screw (19) abut against the opposite surfaces of the first anti-slip pad (14) and the second anti-slip pad (20), respectively.

4. A soil sampling device for landslide sliding surface according to claim 1, characterized in that, A pedal (9) is installed on the top outer wall of the sampling tube (8), and a sealing cover (29) is installed on the top of the sampling tube (8). The bottom end of the sealing cover (29) is located inside the sampling tube (8), and anti-slip textures are provided at both ends of the top of the pedal (9).

5. A soil sampling device for landslide sliding surface according to claim 1, characterized in that, The rolling wheel (1) is located between two rotating shells (2), which are concave in shape, and the bottom of the sampling cylinder (8) is conical.

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