Landslide sliding surface soil sampling device

Abstract

The invention relates to the technical field of sampling equipment, and particularly discloses a landslide sliding surface soil sample sampling device which comprises a rolling wheel, a flexible plate is wound on the outer wall of the rolling wheel, a plurality of through holes are formed in the top of the flexible plate in the length direction, a sampling barrel is movably mounted in one through hole, and the sampling barrel is movably mounted in the other through hole. Two supporting rods are installed on the inner wall of the sampling barrel, feeding holes are formed in the inner walls of the two sides of the sampling barrel and located below the supporting rods, sealing plates are installed on the portions, located on the side faces of the two feeding holes, in the sampling barrel, the top ends of the sealing plates are slidably installed on the outer walls of the two supporting rods, and electromagnet blocks are installed at the middle ends of the outer walls of the supporting rods. The electromagnet block is located between the two sealing plates. According to the invention, a worker can accurately sample soil at a specified position and a specified depth of a sliding surface of a landslide, so that the detection result of the soil is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling equipment, and particularly to a sampling device for soil samples on the sliding surface of a landslide. Background Art

[0002] A recent landslide refers to a landslide that is still repeatedly active or has just stopped being active and still poses a sliding risk. Such a landslide may slide integrally or partially downward along a specific weak surface or weak zone under the influence of factors such as river scouring, groundwater activity, rainwater soaking, earthquake, and artificial slope cutting. After determining the basic information such as the scope and sliding surface of the landslide through on-site investigation, soil sampling, surveying, geophysical prospecting, drilling, and other exploration means of the recent landslide, the physical parameters and mechanical properties of the slip zone soil, landslide body soil, and sliding bed soil are measured through in-situ tests, laboratory tests, and other means.

[0003] The soil on the inclined surface of a recent landslide may slide at any time, and the soil is relatively soft. When it is necessary to sample the soil on the landslide surface, the staff cannot stand on the landslide surface, resulting in soil sampling only being possible at a safe position near the top of the landslide inclined surface. Due to limitations such as the sampling and position of the slip zone soil, the parameters of the slip zone soil measured by the test means deviate from the actual situation and cannot be directly used. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and propose a sampling device for soil samples on the sliding surface of a landslide.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A sampling device for soil samples on the sliding surface of a landslide, including rolling wheels. A flexible plate is wound and installed on the outer wall of the rolling wheels. A plurality of through holes are formed in the top of the flexible plate in the length direction. A sampling cylinder is movably installed in one of the through holes. Two support rods are installed on the inner wall of the sampling cylinder. Feeding holes are formed on both inner walls of the sampling cylinder, and the feeding holes are located below the support rods. Sealing plates are installed on both sides of the inner part of the sampling cylinder. The top ends of the sealing plates are slidably installed on the outer walls of the two support rods. An electromagnet block is installed in the middle of the outer wall of the support rod, and the electromagnet block is located between the two sealing plates.

[0007] Preferably, a plurality of installation grooves are formed on both sides of the flexible plate. A support plate is installed in the installation groove. One end of the support plate penetrates through the installation groove and is rotatably installed with a rotating plate. A groove is formed on the top end of the rotating plate close to one side of the flexible plate. A magnet block is installed on the inner wall of the groove. A plurality of fixing teeth are installed on the top end of the rotating plate far from the flexible plate.

[0008] Preferably, a baffle is installed in the middle of the inner wall of the rolling wheel. Electromagnetic coils are installed at both ends of the baffle, and the two electromagnetic coils are respectively installed on the inner walls at both ends of the rolling wheel. A placement groove is formed on the side of the baffle, and a dual-axis motor is installed on the inner wall of the placement groove. Both output shafts of the dual-axis motor are equipped with sleeves.

[0009] Preferably, one end of each of the two sleeves away from the dual-axis motor penetrates through the baffle. A sleeve rod is slidably installed inside the sleeve. One end of the sleeve rod penetrates through the sleeve. Rotating shells are installed at one ends of the two sleeve rods away from the rolling wheel. Slide grooves are formed on both inner walls of the sleeve in the length direction. Sliders are installed on both outer sides of one end of the sleeve rod located inside the sleeve, and the sliders are slidably installed inside the slide grooves.

[0010] Preferably, fixing grooves are formed on both sides at the bottom of the flexible plate in the length direction. A plurality of screw holes are formed at the inner top of the fixing groove, and the top ends of the screw holes penetrate through the support plate and the flexible plate. Screws are threadedly installed inside the screw holes. Second anti-slip pads are installed inside the two fixing grooves, and the bottoms of the second anti-slip pads penetrate through the fixing grooves.

[0011] Preferably, first anti-slip pads are installed on both sides at the top of the rolling wheel in the length direction. A plurality of through holes are located between the two first anti-slip pads, and both ends of the screw are abutted against the opposite surfaces of the first anti-slip pad and the second anti-slip pad.

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

[0013] Preferably, a fixing plate is installed at one end of the flexible plate away from the rolling wheel. Fixing holes are formed at both ends of the top of the fixing plate, and a limiting plate is installed at one side of the middle of the bottom of the fixing plate away from the flexible plate.

[0014] Preferably, a plurality of anti-slip grooves are formed on the outer walls of the two rotating shells. The rotating plate away from the fixing plate is located on the side of the rolling wheel, and the magnet block at the top end 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 the two rotating shells. The shape of the rotating shell is concave, 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. When the staff walks on the top of the flexible plate towards the designated soil sampling position in the present invention, the rotating plate is slightly stepped on, increasing the depth of the fixing teeth on the rotating plate inserted into the soil. During use, several rotating plates and the fixing teeth thereon can play a certain role in fixing the soil on both sides of the landslide sliding surface located on both sides of the flexible plate, which can not only fix the position of the flexible plate, but also prevent the soil on both sides of the flexible plate from landsliding due to the staff stepping on the soil of the landslide sliding surface through the flexible plate. When the staff walks on the top of the flexible plate and squeezes the soil through the flexible plate, the flexible plate can disperse the downward pressure of the staff, reduce the extrusion force of the staff on a single position of the soil through the flexible plate, and prevent the soil collapse or flow at the bottom of the landslide sliding surface located under the flexible plate when the staff walks on the top of the flexible plate.

[0018] 2. After the soil sampling is completed in the present invention, the flexible plate is wound around the outer wall of the rolling wheel, and one end of the rotating plate close to the magnet block rotates to both ends of the rolling wheel, and the magnet block and the electromagnetic coil are adsorbed to each other. During use, it can play a good role in fixing the position of several rotating plates. Both sides of the rolling wheel and the flexible plate are respectively located inside two rotating shells. At the same time, the side of several rotating plates away from the rolling wheel abuts against the inner wall of the rotating shell. During 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 around the outer wall of the rolling wheel.

[0019] 3. When the staff walks on the top of the flexible plate in the present invention, the soles of the staff's feet are placed on the top of the first anti-slip pads on both sides of the top of the flexible plate. The first anti-slip pads can play a good anti-slip effect when the staff walks on the top of the flexible plate, prevent the staff from slipping when walking on the top of the flexible plate, and improve the safety protection of the staff during sampling. When the staff moves on the landslide sliding surface by standing on the top of the flexible plate, the staff can press down on the top of the flexible plate, so that the second anti-slip pads on both sides of the bottom of the flexible plate are squeezed and connected with the soil at the bottom of the landslide sliding surface located under the flexible plate, preventing the flexible plate from sliding on the surface of the landslide sliding surface when the staff stands and walks on the top of the flexible plate, and making the staff more stable when walking on the top of the flexible plate.

[0020] 4. In the present invention, the staff inserts the conical end of the sampling cylinder through the through-hole on the flexible plate and into the soil at the bottom of the flexible plate. The electromagnet block pushes the two sealing plates to block the feeding hole through the magnetic field. When the bottom end of the sampling cylinder is about to move down to the specified depth inside the soil, the staff disconnects the external power supply from the electromagnet block. The inner top corner position of the feeding hole on the sampling cylinder can scrape the soil around the outer wall of the sampling cylinder, and the scraped soil can push the sealing plate inside the feeding hole. The soil scraped on the outer wall of the sampling cylinder can then fall into the inside of the sampling cylinder. The sampling cylinder can store the soil, and during use, it can accurately sample the soil at a specified position and depth of the landslide sliding surface, improving the accuracy of soil detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of a landslide sliding surface soil sample sampling device proposed by the present invention;

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

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

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

[0025] Figure 5 is a schematic diagram of the flexible plate structure of a landslide sliding surface soil sample sampling device proposed by the present invention;

[0026] Figure 6 is a schematic diagram of the rotating plate structure of a landslide sliding surface soil sample sampling device proposed by the present invention;

[0027] Figure 7 is a cross-sectional view of the rolling wheel of a landslide sliding surface soil sample sampling device proposed by the present invention;

[0028] Figure 8 is a cross-sectional view of the sleeve of a landslide sliding surface soil sample sampling device proposed by the present invention;

[0029] Figure 9 is a cross-sectional view of the sampling cylinder of a landslide sliding surface soil sample sampling device proposed by the present invention;

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

[0031] In the figure: 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. installation groove; 22. fixing groove; 23. screw hole; 24. baffle; 25. biaxial motor; 26. placement groove; 27. chute; 28. slider; 29. sealing cover; 30. feed hole; 31. sealing plate; 32. electromagnet block; 33. support rod. Detailed implementation manner

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0034] Refer to Figures 1-10 , a landslide sliding surface soil sample sampling device, including a rolling wheel 1, a flexible plate 3 is wound and installed on the outer wall of the rolling wheel 1, a plurality of through holes 15 are opened in the top of the flexible plate 3 in 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 inner walls 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 ends of the sealing plates 31 are slidably installed on the outer walls of the two support rods 33, and an electromagnet block 32 is installed in the middle of the outer wall of the support rod 33, and the electromagnet block 32 is located between the two sealing plates 31.

[0035] As a technical optimization solution 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 penetrates through the mounting groove 21 and is rotatably installed with a rotating plate 7. A groove 16 is provided on the top end of the rotating plate 7 near one side of 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 end of the rotating plate 7 far from one side of the flexible plate 3. During use, the staff can rotate the rotating plate 7 to insert a plurality of fixing teeth 18 on the rotating plate 7 into the soil of the landslide sliding surface, which can play a certain fixing effect during use and can also prevent the soil from sliding again during soil sample collection.

[0036] As a technical optimization solution of the present invention, a baffle 24 is installed in the middle of the inner wall of the rolling wheel 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 at both ends of the rolling wheel 1. A placement groove 26 is provided on the side surface 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 the two output shafts of the dual-axis motor 25. The dual-axis motor 25 can drive the two rotating shells 2 to roll on the landslide sliding surface at the same time during use. The two rotating shells 2 can extrude the soil on both sides of the landslide located on the flexible plate 3 during use, and the safety performance is higher when the staff stands on the top of the flexible plate 3 for soil sampling.

[0037] As a technical optimization solution of the present invention, one end of each of the two sleeves 12 far from the dual-axis motor 25 penetrates through the baffle 24. A sleeve rod 13 is slidably installed inside the sleeve 12. One end of the sleeve rod 13 penetrates through the sleeve 12. Rotating shells 2 are installed at one ends of the two sleeve rods 13 far from the rolling wheel 1. Chute grooves 27 are provided on the inner walls on both sides of the sleeve 12 in the length direction. Sliders 28 are installed on both sides of the outer wall of one end of the sleeve rod 13 located inside the sleeve 12. The sliders 28 are slidably installed inside the chute grooves 27. During use, the staff can adjust the distance between the rotating shell 2 and the rolling wheel 1. When the flexible plate 3 is wound around the outer wall of the rolling wheel 1, the staff can move the two ends of the rolling wheel 1 and the flexible plate 3 into the two rotating shells 2 respectively, which can provide good protection and position fixation for the flexible plate 3.

[0038] As a technical optimization solution of the present invention, fixing grooves 22 are provided on both sides of the bottom of the flexible plate 3 in the length direction. A plurality of screw holes 23 are provided at the inner top of the fixing groove 22. The top ends of the screw holes 23 penetrate through the support plate 10 and the flexible plate 3. Screws 19 are threadedly installed inside the screw holes 23. Second anti-slip pads 20 are installed inside the two fixing grooves 22. The bottoms of the second anti-slip pads 20 penetrate through the fixing grooves 22. When the flexible plate 3 is laid on the landslide sliding surface, the second anti-slip pads 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 staff stands on the flexible plate 3.

[0039] As a technical optimization solution of the present invention, first anti-slip pads 14 are installed on both sides of the top of the rolling wheel 1 in the length direction. A plurality of through holes 15 are all located between the two first anti-slip pads 14. Both ends of the screw 19 are in contact with the opposite surfaces of the first anti-slip pad 14 and the second anti-slip pad 20 respectively. When in use, the first anti-slip pad 14 can make the staff stand more stably on the top of the flexible plate 3, preventing the staff from slipping when standing on the top of the flexible plate 3 due to the inclined placement of the flexible plate 3.

[0040] As a technical optimization solution of the present invention, a pedal 9 is installed on the outer wall of the top end of the sampling cylinder 8. A sealing cover 29 is installed at the top end of the sampling cylinder 8. The bottom end of the sealing cover 29 is located inside the sampling cylinder 8. Anti-slip patterns are provided at both ends of the top of the pedal 9. When the staff needs to insert the bottom end of the sampling cylinder 8 into the soil, the sampling cylinder 8 can be driven to move downward by stepping on the pedal 9, which can save physical strength consumption during soil sampling when in use.

[0041] As a technical optimization solution of the present invention, a fixing plate 4 is installed at one end of the flexible plate 3 away from the rolling wheel 1. Fixing holes 6 are provided at both ends of the top of the fixing plate 4. A limiting plate 5 is installed at the middle of the bottom of the fixing plate 4 on the side away from the flexible plate 3. When in use, the staff fixes the fixing plate 4 at the gentle surface at the top end of the landslide sliding surface, and the limiting plate 5 at the bottom of the fixing plate 4 is inserted into the ground, which can fix the position of the top end of the flexible plate 3 when in use.

[0042] As a technical optimization solution of the present invention, a plurality of anti-slip grooves are provided on the outer walls of the two rotating shells 2. The rotating plate 7 away from the fixing plate 4 is located on the side of the rolling wheel 1, and the magnet block 17 at the top end 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 wound around the outer wall of the rolling wheel 1, the magnet blocks 17 on the two rotating plates 7 on both sides of the flexible plate 3 are adsorbed on the side of the electromagnetic coil 11. When in use, the electromagnetic coil 11 can fix the positions of a plurality of rotating plates 7 at the same time, which is convenient for the rotating shell 2 to protect a plurality of rotating plates 7.

[0043] As a technical optimization solution of the present invention, the rolling wheel 1 is located between the two rotating shells 2. The shape of the rotating shell 2 is concave, and the bottom end of the sampling cylinder 8 is conical. When sampling the soil through the sampling cylinder 8, the conical bottom end of the sampling cylinder 8 can make it more convenient for the sampling cylinder 8 to move downward. The concave rotating shell 2 can facilitate the storage of both ends of a plurality of rotating plates 7 and the rolling wheel 1 and fix the position of the flexible plate 3 when in use.

[0044] When the present invention is in use, the staff place the rolling wheel 1 on the flat ground at the top of the landslide sliding surface, pull the rotating shells 2 at both ends of the rolling wheel 1, so that both sides of the flexible plate 3 are moved out of the inside of the rotating shell 2. The staff pull one end of the flexible plate 3 close to the fixed plate 4, place the fixed plate 4 on the ground, and at the same time, the limiting plate 5 at the bottom of the fixed plate 4 is inserted into the ground. When in use, the staff pass a fixing rod through the fixing hole 6 at the top of the fixed plate 4 and insert it into the ground, so that the position of the top end of the flexible plate 3 can be fixed by the fixed plate 4 during use.

[0045] The staff cut off the power supply of the electromagnetic coil 11, and at the same time push the rolling wheel 1 towards the landslide sliding surface. The rolling wheel 1 rolls towards the bottom end of the landslide sliding surface on the landslide sliding surface. At the same time, when the rolling wheel 1 rolls, the flexible plate 3 is laid from the top end of the landslide sliding surface to the bottom end of the landslide sliding surface. At the same time, when the rolling wheel 1 drives the two rotating shells 2 to roll, the two rotating shells 2 can extrude the soil on both sides of the landslide sliding surface where the flexible plate 3 is located, so that the soil on both sides of the landslide sliding surface where the flexible plate 3 is located is more solid than the soil at other positions of the landslide sliding surface, and it can prevent the soil on both sides of the flexible plate 3 from landsliding and collapsing when the staff stand on the top of the flexible plate 3 for soil sampling.

[0046] After the electromagnetic coil 11 is powered off, the electromagnetic coil 11 will disconnect the magnetic field adsorption with the magnet blocks 17 on the several rotating plates 7, so that the rotating plates 7 drive the rotating plates 7 to tilt to the side away from the flexible plate 3 due to the self-weight of the several fixing teeth 18 on the side of the top end of the rotating plates 7. When the flexible plate 3 is laid on the landslide sliding surface, the several rotating plates 7 located on both sides of the flexible plate 3 can rotate to the landslide sliding surface, and the several fixing teeth 18 on the rotating plates 7 can be inserted into the soil inside the flexible plate 3 on both sides of the landslide sliding surface. When the staff move on the landslide sliding surface by standing on the top of the flexible plate 3, the staff can press down on the top of the flexible plate 3, so that the second anti-slip pads 20 on both sides of the bottom of the flexible plate 3 are squeezed and connected with the soil at the bottom of the flexible plate 3 on the landslide sliding surface, preventing the flexible plate 3 from sliding on the surface of the landslide sliding surface when the staff walk on the top of the flexible plate 3, and making the staff more stable when walking on the top of the flexible plate 3.

[0047] When the staff walks on the top of the flexible plate 3 towards the designated soil sampling position, slightly step on several rotating plates 7 on both sides of the flexible plate 3 to increase the depth of the fixing teeth 18 on the rotating plates 7 inserted into the soil. During use, several rotating plates 7 and the fixing teeth 18 thereon can play a certain fixing role in the soil on both sides of the landslide sliding surface where the flexible plate 3 is located, which can not only fix the position of the flexible plate 3 but also prevent the soil on both sides of the flexible plate 3 from landsliding due to the staff stepping on the soil of the landslide sliding surface through the flexible plate 3 during sampling. When the staff walks on the top of the flexible plate 3 and squeezes the soil through the flexible plate 3, the flexible plate 3 can disperse the downward pressure of the staff, reduce the extrusion force of the staff on a single position of the soil through the flexible plate 3, and prevent the soil collapse or flow at the bottom of the flexible plate 3 where the landslide sliding surface is located when the staff walks on the top of the flexible plate 3. When the staff walks on the top of the flexible plate 3, the soles of the staff's feet are placed on the tops of the first anti-slip pads 14 on both sides of the top of the flexible plate 3. Since the landslide sliding surface is an inclined surface and the flexible plate 3 on the landslide sliding surface is also installed obliquely, the first anti-slip pads 14 can play a good anti-slip effect when the staff walks on the top of the flexible plate 3, prevent the staff from slipping when walking on the top of the flexible plate 3, and improve the safety protection during the staff's sampling.

[0048] When the staff takes a soil sample from the landslide sliding surface soil, the staff penetrates the conical end of the sampling cylinder 8 through the through hole 15 on the flexible plate 3 and inserts it into the soil inside the bottom of the flexible plate 3. At the same time, when the staff moves the sampling cylinder 8 downward, the electromagnet block 32 is connected to an external power source, so that the electromagnet block 32 generates a magnetic field, and the two sealing plates 31 are pushed by the magnetic field repulsion to move towards the inner wall direction of the sampling cylinder 8, so that the bottom end of the sealing plate 31 blocks the feeding hole 30. When the bottom end of the sampling cylinder 8 is about to move downward to a specified depth inside the soil, the staff disconnects the connection between the external power source and the electromagnet block 32, so that the magnetic field of the electromagnet block 32 disappears.

[0049] During use, the operator steps on the top of the pedal 9 to move the sampling cylinder 8 downward into the soil again. At the same time, when the sampling cylinder 8 moves downward, the inner top corner position of the feed hole 30 on the sampling cylinder 8 can scrape the soil around the outer wall of the sampling cylinder 8. The scraped soil can then push the sealing plate 31 inside the feed hole 30, causing the sealing plate 31 to move on the support rod 33 in the direction of the electromagnet block 32. The soil scraped from the outer wall of the sampling cylinder 8 can fall into the sampling cylinder 8, and the sampling cylinder 8 can store the soil. After the soil sampling is completed, the operator can connect the external power supply to the electromagnet block 32 again, so that the magnetic field generated by the electromagnet block 32 can push the sealing plate 31 to move towards the inner wall of the sampling cylinder 8 again, causing the sealing plate 31 to block the feed hole 30. Then the operator can pull the sampling cylinder 8 through the pedal 9 to move the sampling cylinder 8 out of the soil and the through hole 15. The operator can pour the soil inside the sampling cylinder 8 into a specified container through the top of the sampling cylinder 8, which is convenient for the operator to conduct subsequent experimental tests on the soil. During use, it can accurately sample the soil at a specified position and depth of the landslide sliding surface, improving the accuracy of soil detection.

[0050] After the operator finishes sampling the soil, the dual-axis motor 25 drives the two rotating shells 2 to rotate on the landslide sliding surface through the sleeve 12 and the sleeve rod 13, and at the same time drives the rolling wheel 1 to move towards the top of the landslide sliding surface. When the slope of the landslide sliding surface is too large and the rotating shell 2 cannot drive the rolling wheel 1 to move upward on the landslide sliding surface, the operator can pull the flexible plate 3 through the fixed plate 4 and pull the rolling wheel 1 and the rotating shell 2 to the gentle ground at the top of the landslide sliding surface through the flexible plate 3. The operator energizes the electromagnetic coil 11 to generate a magnetic field, and then the operator can wind and install the flexible plate 3 on the outer wall of the rolling wheel 1. At the same time, the operator rotates the rotating plates 7 on both sides of the flexible plate 3, so that the end of the rotating plate 7 close to the magnet block 17 rotates to both ends of the rolling wheel 1, and the magnet block 17 is adsorbed to the electromagnetic coil 11, which can fix the positions of several rotating plates 7 well during use.

[0051] After the operator finishes fixing the positions of the flexible plate 3 and the rotating plates 7, the operator can push the two rotating shells 2 towards the rolling wheel 1, so that both sides of the rolling wheel 1 and the flexible plate 3 are located inside the two rotating shells 2 respectively. At the same time, the sides of several rotating plates 7 away from the rolling wheel 1 are in contact with the inner wall of the rotating shell 2. During 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 wound around the outer wall of the rolling wheel 1.

[0052] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A sampling device for landslide sliding surface soil samples, including rolling wheels (1), characterized in that, A flexible plate (3) is wound and installed on the outer wall of the rolling wheel (1). A number of through holes (15) are formed in 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 formed on both inner walls of the sampling cylinder (8), and the feed holes (30) are located below the support rods (33). Sealing plates (31) are installed on the sides of the sampling cylinder (8) where the two feed holes (30) are located. The top ends of the sealing plates (31) are slidably installed on the outer walls of the two support rods (33). An electromagnet block (32) is installed in the middle of the outer wall of the support rod (33), and the electromagnet block (32) is located between the two sealing plates (31).

2. The soil sample sampling device for the landslide sliding surface according to claim 1, characterized in that, A number of installation grooves (21) are formed on both sides of the flexible plate (3). A support plate (10) is installed inside the installation grooves (21). One end of the support plate (10) penetrates through the installation grooves (21) and is rotatably installed with a rotating plate (7). A groove (16) is formed on the top end of the rotating plate (7) near one side of the flexible plate (3). A magnet block (17) is installed on the inner wall of the groove (16). A number of fixing teeth (18) are installed on the top end of the rotating plate (7) far from one side of the flexible plate (3).

3. The soil sample sampling device for the landslide sliding surface according to claim 2, characterized in that, A baffle (24) is installed in the middle of the inner wall of the rolling wheel (1). Electromagnetic coils (11) are installed at both ends of the baffle (24), and the two electromagnetic coils (11) are respectively installed on the inner walls at both ends of the rolling wheel (1). A placement groove (26) is formed 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 the two output shafts of the dual-axis motor (25).

4. A sampling device for landslide sliding surface soil samples according to claim 3, characterized in that, One end of each of the two sleeves (12) far from the dual-axis motor (25) penetrates through the baffle (24). A sleeve rod (13) is slidably installed inside the sleeve (12). One end of the sleeve rod (13) penetrates through the sleeve (12). Rotating shells (2) are installed at the ends of the two sleeve rods (13) far from the rolling wheel (1). Slide grooves (27) are formed on both inner walls of the sleeve (12) along the length direction. Sliders (28) are installed on both sides of the outer wall of the end of the sleeve rod (13) located inside the sleeve (12), and the sliders (28) are slidably installed inside the slide grooves (27).

5. The sampling device for landslide sliding surface soil sample according to claim 2, characterized in that, Fixing grooves (22) are formed on both sides of the bottom of the flexible plate (3) along the length direction. A number of screw holes (23) are formed in the inner top of the fixing grooves (22), and the top ends of the screw holes (23) penetrate through the support plate (10) and the flexible plate (3). Screws (19) are threadedly installed inside the screw holes (23). Second anti-slip pads (20) are installed inside the two fixing grooves (22), and the bottoms of the second anti-slip pads (20) penetrate through the fixing grooves (22).

6. The soil sample sampling device for the landslide sliding surface according to claim 5, characterized in that, First anti-slip pads (14) are installed on both sides of the top of the rolling wheel (1) along the length direction. A number of through holes (15) are all located between the two first anti-slip pads (14). The two ends of the screw (19) are respectively abutted against the opposite surfaces of the first anti-slip pad (14) and the second anti-slip pad (20).

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

8. The sampling device for landslide sliding surface soil sample according to claim 4, characterized in that, One end of the flexible plate (3) far from the rolling wheel (1) is installed with a fixing plate (4), fixing holes (6) are formed at both ends of the top of the fixing plate (4), and a limiting plate (5) is installed on one side of the middle of the bottom of the fixing plate (4) far from the flexible plate (3).

9. The sampling device for landslide sliding surface soil sample according to claim 8, characterized in that, A plurality of anti-slip grooves are formed on the outer walls of the two rotating shells (2), the rotating plate (7) far from the fixing plate (4) is located on the side of the rolling wheel (1), and the magnet block (17) at the top end of the rotating plate (7) is located on the side of the electromagnetic coil (11) far from the double-shaft motor (25).

10. A sampling device for soil samples of a landslide sliding surface according to claim 4, characterized in that, The rolling wheel (1) is located between the two rotating shells (2), the shape of the rotating shell (2) is concave, and the bottom end of the sampling cylinder (8) is conical.

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