A deep in-situ cutting sampler for landslip fracture zones

Abstract

The application discloses a landslide crack zone deep in-situ cutting sampler and relates to the technical field of landslide crack zone sampling, which comprises a mounting box, a first telescopic driving element is fixedly connected in the mounting box, and the sampler is used for adjusting the depth of the sampler by driving the mounting plate to move downward through the first telescopic driving element. The mounting pipe is driven to rotate through gear transmission in cooperation with a rotating driving element, the conical drill cutting tool is drilled into the target depth in the rotating state, the soil is cut and enters the sampling cylinder, lossless drilling sampling is realized, after the drilling is completed, the cutting tool cuts the soil sample column in the sampling cylinder in the rotating state, the soil sample is completely separated from the surrounding soil body, the baffle blocks and locks the soil sample after the cutting is completed, the soil sample is effectively prevented from falling from the sampling cylinder in the lifting process, the landslide crack zone deep in-situ precise sampling is realized, and the sampling quality and the reliability of detection data are remarkably improved.

Description

Technical Field

[0001] This invention relates to landslide crack zone sampling technology, specifically to a deep in-situ cutting sampler for landslide crack zones. Background Technology

[0002] Landslides are one of the main types of geological hazards. Landslide fissure zones, as concentrated areas reflecting landslide deformation and failure, provide crucial information for landslide stability assessment and early warning based on the physical and mechanical parameters of the deep soil within them. Obtaining undisturbed soil samples from the deep fissure zones is a prerequisite for conducting laboratory tests and accurately assessing the deep structural characteristics of landslides. Therefore, deep in-situ sampling technology has significant engineering application value in the field of landslide disaster prevention and control.

[0003] Currently, deep landslide sampling mainly employs threaded drilling samplers, piston samplers, and driving samplers. However, existing samplers generally have some shortcomings in practical applications. Traditional samplers often obtain soil samples by drilling and then pulling them out as a whole. During the pulling process, the soil sample column inside the sampling tube lacks effective radial constraint and axial locking. The soil sample is easily detached, broken, or deformed due to its own weight, vibration, and tube wall friction, resulting in incomplete sampling. At the same time, the sampler cannot cut and separate the soil sample in situ in the borehole. The soil sample remains connected to the surrounding soil, and the pulling process inevitably disturbs the soil sample, causing damage to the original structure of the soil sample. This results in a large deviation between the laboratory test results and the actual working conditions.

[0004] Therefore, there is an urgent need for a sampling device that can cut and separate soil samples in situ at deep depths and effectively lock and protect them, in order to solve the technical problems of soil sample structure damage and incomplete sampling caused by the lifting disturbance of existing samplers. Summary of the Invention

[0005] The purpose of this invention is to provide a deep in-situ cutting and sampling device for landslide crack zones, in order to solve the problem in the prior art that the soil sample is not effectively locked during the lifting process, resulting in detachment and deformation and incomplete sampling, which leads to a large deviation between the indoor test results and the actual working conditions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a deep in-situ cutting and sampling device for landslide crack zones, comprising a mounting box, a first telescopic drive component fixedly connected inside the mounting box, a mounting plate fixedly connected to the output end of the first telescopic drive component, a mounting tube rotatably connected to the mounting plate, a first drive mechanism connected to the mounting plate being driven to the outer surface of the mounting tube, the first drive mechanism being used to drive the mounting tube to rotate, a transmission box fixedly connected to the outer surface of the mounting tube, a sampling cylinder fixedly connected inside the transmission box, and a conical drill cutter fixedly connected to the bottom of the transmission box;

[0007] The transmission box is slidably connected to a baffle that is slidably connected to the sampling cylinder. A cutting blade is fixedly connected to one side of the baffle, and a transmission mechanism connected to the transmission box is driven to one side of the baffle. The transmission mechanism is used to drive the baffle to move towards the center position of the sampling cylinder.

[0008] Furthermore, the first driving mechanism includes a rotating driving component fixedly connected to the mounting plate, the output end of the rotating driving component is fixedly connected to a driving shaft, the outer surface of the driving shaft is fixedly sleeved with a first driving gear, and the outer surface of the first driving gear is meshed with a second driving gear fixedly sleeved with the mounting tube.

[0009] Furthermore, the transmission mechanism includes a transmission gear ring rotatably connected to the transmission box, a transmission gear meshing with the inner surface of the transmission gear ring, a first transmission rack fixedly connected to the baffle meshing with the outer surface of the transmission gear, and a second drive mechanism connected to the transmission box meshing with the inner surface of the transmission gear ring. The second drive mechanism is used to drive the transmission gear ring to rotate.

[0010] Furthermore, the second drive mechanism includes a second telescopic drive member fixedly connected to the transmission box, a second transmission rack fixedly connected to the output end of the second telescopic drive member and slidably connected to the transmission box, a first gear meshing with one side of the second transmission rack, a transmission shaft rotatably connected to the transmission box fixedly sleeved in the middle of the first gear, and a second gear meshing with the transmission gear ring fixedly sleeved on the outer surface of the transmission shaft.

[0011] Furthermore, the outer surface of the mounting pipe is fixedly connected to a water outlet pipe that is fixedly connected to the transmission box, and the bottom end of the mounting pipe is rotatably connected to a connecting pipe, which is fixedly connected to the mounting plate.

[0012] Furthermore, a connecting block is fixedly connected to the top of the mounting box, and a sampling tube is threaded onto the connecting block.

[0013] Furthermore, a third telescopic drive component is fixedly connected inside the sampling cylinder, and a push plate that is slidably connected to the sampling cylinder is fixedly connected to the output end of the third telescopic drive component.

[0014] Furthermore, a discharge groove is provided on the outer surface of the transmission box, and a reinforcing plate is fixedly connected inside the transmission box. The reinforcing plate is fixedly connected to the sampling cylinder.

[0015] Compared with the prior art, the in-situ cutting and sampling device for deep landslide crack zones provided by the present invention has the following beneficial effects:

[0016] The first telescopic drive component moves the mounting plate downwards to adjust the sampler's depth. This, combined with a rotating drive component that drives the mounting tube to rotate via gear transmission, allows the conical drill bit to drill to the target depth while rotating. Soil enters the sampling cylinder under cutting action, achieving non-destructive drilling and sampling. After drilling is complete, the second telescopic drive component, through a multi-stage transmission chain of rack, pinion, gear, gear ring, and gear, drives multiple baffles to converge radially towards the center of the sampling cylinder. The cutting blades on the baffles move towards the center, while the rotating drive component continues to rotate the entire system. The cutting blades, while rotating, circumferentially cut the soil sample column inside the sampling cylinder, completely separating the soil sample from the surrounding soil. After cutting, the baffles precisely block and lock the soil sample, effectively preventing it from falling out of the sampling cylinder during the lifting process. The entire cutting and separation process is completed in situ, eliminating the need to remove the sampler before cutting. This avoids problems such as soil sample structure damage and layer confusion caused by the lifting disturbance of traditional samplers, enabling in-situ accurate sampling of deep landslide crack zones and significantly improving sampling quality and the reliability of test data.

[0017] By adding cooling and sealing ejection functions, when the sampling location is rock, the water pump supplies water to the outer surface of the conical drill bit through the connecting pipe, installation pipe, and outlet pipe. The water flow continuously cools the drill bit during drilling, effectively reducing frictional heat damage during rock drilling, significantly extending the service life of the conical drill bit, and reducing operating costs. Simultaneously, a third telescopic drive unit inside the sampling cylinder drives the push plate. Before sampling, the push plate moves down to the end of the conical drill bit to seal the feed end, preventing soil from other layers from mixing in during the descent and causing sampling contamination or distortion, thus ensuring sampling accuracy. During sampling, the push plate moves up to open the feed end. After sampling, the push plate ejects the sample from the sampling cylinder and discharges it through the discharge chute, eliminating the need for manual retrieval. This simple and quick operation further improves sampling efficiency and sample integrity, making it particularly suitable for the precise stratified sampling of multi-layered soil in deep fissure zones. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a first perspective view of the external structure of the present invention;

[0020] Figure 2 This is a second perspective view of the external structure of the present invention;

[0021] Figure 3 This is a first perspective view of the internal structure of the present invention;

[0022] Figure 4 This is a second perspective view of the internal structure of the present invention;

[0023] Figure 5 This is a third perspective view of the internal structure of the present invention;

[0024] Figure 6 This is a fourth perspective view of the internal structure of the present invention;

[0025] Figure 7 For the present invention Figure 3 Enlarged view of A in the middle;

[0026] Figure 8 For the present invention Figure 5 A magnified view of B in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Mounting box; 2. First telescopic drive component; 3. Mounting plate; 4. Mounting pipe; 5. Transmission box; 6. Sampling cylinder; 7. Conical drill cutter; 8. Baffle; 9. Cutting blade; 11. Rotation drive component; 12. Drive shaft; 13. First drive gear; 14. Second drive gear; 21. Transmission gear ring; 22. Transmission gear; 23. First transmission rack; 31. Second telescopic drive component; 32. Second transmission rack; 33. First gear; 34. Transmission shaft; 35. Second gear; 41. Water outlet pipe; 42. Connecting pipe; 51. Connecting block; 52. Sampling tube; 61. Third telescopic drive component; 62. Push plate; 71. Discharge chute. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] Please see Figures 1 to 8 As shown, the present invention provides a deep in-situ cutting and sampling device for landslide cracks, including a mounting box 1. A first telescopic drive component 2 is fixedly connected inside the mounting box 1. The fixed end of the first telescopic drive component 2 is fixedly connected to the mounting box 1. The first telescopic drive component 2 is an electric telescopic rod or an electric hydraulic rod. The output end of the first telescopic drive component 2 is fixedly connected to a mounting plate 3. An installation tube 4 is rotatably connected to the mounting plate 3. A first drive mechanism connected to the mounting plate 3 is connected to the outer surface of the installation tube 4. The first drive mechanism is used to drive the installation tube 4 to rotate. A transmission box 5 is fixedly connected to the outer surface of the installation tube 4. A sampling cylinder 6 is fixedly connected inside the transmission box 5. A conical drill cutter 7 is fixedly connected to the bottom of the transmission box 5. The conical drill cutter 7 is hollow and its top end is fixed and connected to the bottom opening of the sampling cylinder 6, so that the cut soil can directly enter the sampling cylinder 6.

[0032] Inside the transmission box 5, there is a baffle 8 that is slidably connected to the sampling cylinder 6. A cutting blade 9 is fixedly connected to one side of the baffle 8. A transmission mechanism connected to the transmission box 5 is driven to one side of the baffle 8. The transmission mechanism is used to drive the baffle 8 to move towards the center position of the sampling cylinder 6. A connecting block 51 is fixedly connected to the top of the mounting box 1. A sampling tube 52 is threadedly connected to the connecting block 51. Sampling tubes 52 of different lengths are installed on the connecting block 51 according to the sampling depth.

[0033] The first drive mechanism includes a rotation drive component 11 fixedly connected to the mounting plate 3. The rotation drive component 11 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate forward and backward and rotate at different angles. The output end of the rotation drive component 11 is fixedly connected to a drive shaft 12. A first drive gear 13 is fixedly sleeved on the outer surface of the drive shaft 12. A second drive gear 14 is meshed with the outer surface of the first drive gear 13 and fixedly sleeved on the mounting tube 4. The rotation drive component 11 drives the drive shaft 12 to rotate, and the drive shaft 12 drives the mounting tube 4 to rotate through the first drive gear 13 and the second drive gear 14.

[0034] The transmission mechanism includes a transmission gear ring 21 rotatably connected to the transmission box 5. A transmission gear 22 is meshed on the inner surface of the transmission gear ring 21. A first transmission rack 23 fixedly connected to the baffle 8 is meshed on the outer surface of the transmission gear 22. A second drive mechanism connected to the transmission box 5 is meshed on the inner surface of the transmission gear ring 21. The second drive mechanism is used to drive the transmission gear ring 21 to rotate.

[0035] The second drive mechanism includes a second telescopic drive member 31 fixedly connected to the transmission box 5. The fixed end of the second telescopic drive member 31 is fixedly connected to the transmission box 5. The second telescopic drive member 31 is an electric telescopic rod or an electric hydraulic rod. The output end of the second telescopic drive member 31 is fixedly connected to a second transmission rack 32 slidably connected to the transmission box 5. A first gear 33 is meshed with one side of the second transmission rack 32. A transmission shaft 34 rotatably connected to the transmission box 5 is fixedly sleeved in the middle of the first gear 33. A second gear 35 meshing with the transmission gear ring 21 is fixedly sleeved on the outer surface of the transmission shaft 34. The second telescopic drive member 31 drives the second transmission rack 32 to move. The second transmission rack 32 drives the first gear 33 to rotate. The first gear 33 drives the transmission shaft 34 to rotate. The transmission shaft 34 drives the second gear 35 to rotate. The second gear 35 drives the transmission gear ring 21 to rotate. The transmission gear ring 21 drives the transmission gear 22 to rotate. The transmission gear 22 drives the first transmission rack 23 to move. The first transmission rack 23 drives the baffle 8 to move.

[0036] By holding the sampling tube 52, the mounting box 1 at the end of the sampling tube 52 is placed at the target depth position of the landslide crack zone. Then, the first telescopic drive 2 drives the mounting plate 3 to move downwards. The mounting plate 3 drives the mounting tube 4 and the transmission box 5 to move downwards. The transmission box 5 drives the sampling cylinder 6 to move downwards. At the same time, the first drive mechanism drives the mounting tube 4 to rotate, which in turn drives the transmission box 5 to rotate. At this time, the transmission box 5 drives the conical drill cutter 7 to rotate, causing the transmission box 5 to drill downwards, allowing the soil at the target depth position to enter the sampling cylinder 6. Then, the second telescopic drive 31 drives the second transmission rack 32 to move. The second transmission rack 32 drives the first gear 33 to rotate. The first gear 33 drives the transmission shaft 34 to rotate. The transmission shaft 34 drives the second gear 35 to rotate. The second gear 35 drives the transmission gear ring 21 to rotate. The transmission gear ring 21 drives the transmission gear 22 to rotate. The moving gear 22 drives the first transmission rack 23 to move, and the first transmission rack 23 drives the baffle 8 to move, causing multiple baffles 8 to move towards the center of the sampling cylinder 6. At this time, the baffle 8 drives the cutting blade 9 to move towards the center of the sampling cylinder 6. Simultaneously, the first drive mechanism drives the installation tube 4 and the transmission box 5 to rotate, and the transmission box 5 drives the sampling cylinder 6, the baffle 8, and the cutting blade 9 to rotate. The cutting blade 9 cuts the soil in the sampling cylinder 6, cutting off the soil inside the sampling cylinder 6. At this time, the baffle 8 blocks the soil in the sampling cylinder 6, effectively preventing the soil from falling out of the sampling cylinder 6. Then, the installation box 1 is removed from the sampling position. Then, the transmission mechanism drives the baffle 8 to move in the opposite direction, so that the baffle 8 is away from the center of the sampling cylinder 6 and no longer blocks the soil. Then, the sample in the sampling cylinder 6 is taken out, thereby achieving precise in-situ sampling of the deep part of the landslide crack zone.

[0037] Example 2

[0038] Based on Example 1, please refer to Figure 3 and Figure 8 As shown, the outer surface of the mounting pipe 4 is fixedly connected to the water outlet pipe 41, which is fixedly connected to the transmission box 5. The bottom end of the mounting pipe 4 is rotatably connected to the connecting pipe 42, which is fixedly connected to the mounting plate 3.

[0039] A third telescopic drive component 61 is fixedly connected inside the sampling cylinder 6. The fixed end of the third telescopic drive component 61 is fixedly connected to the sampling cylinder 6. The third telescopic drive component 61 is an electric telescopic rod or an electric hydraulic rod. The output end of the third telescopic drive component 61 is fixedly connected to a push plate 62 that is slidably connected to the sampling cylinder 6.

[0040] The outer surface of the transmission box 5 is provided with a discharge groove 71, and a reinforcing plate is fixedly connected inside the transmission box 5. The reinforcing plate is fixedly connected to the sampling cylinder 6.

[0041] When the sampling location is rock, the water supply pipe is connected to the connecting pipe 42. During drilling, a water pump supplies water to the water supply pipe, which then flows into the installation pipe 4. The installation pipe 4, through the connecting pipe 42, supplies water to the outer surface of the transmission box 5. The water flows from the surface of the transmission box 5 onto the outer surface of the tapered drill bit 7, cooling the tapered drill bit 7 and reducing damage during drilling. This improves the service life of the tapered drill bit 7.

[0042] During the sampling process, the third telescopic drive 61 first moves the push plate 62 to the end of the conical drill cutter 7, sealing the feed end of the conical drill cutter 7 to prevent soil from other locations from entering the sampling cylinder 6 during the placement of the transmission box 5, causing sampling contamination or distortion and affecting the accuracy of subsequent test results. When sampling begins, the third telescopic drive 61 moves the push plate 62 upward. When the sampling is completed and the sample in the sampling cylinder 6 is removed, the third telescopic drive 61 moves the push plate 62 to push the sample out of the sampling cylinder 6, making it easier for staff to remove the sample from the sampling cylinder 6.

[0043] Working principle:

[0044] Workers hold sampling tubes 52 and lower the installation box 1 to the target depth of the landslide crack zone. Sampling tubes 52 of different lengths are threaded onto the connecting block 51 according to the sampling depth. After being lowered into place, the first telescopic drive 2 drives the installation plate 3 to move downwards. The installation plate 3 drives the installation tube 4, transmission box 5, sampling cylinder 6, and conical drill cutter 7 to move downwards synchronously. At the same time, the rotation drive 11 (servo motor) is controlled to rotate forward by the PLC program, driving the first drive gear 13 to rotate via the drive shaft 12. The first drive gear 13 meshes with the second drive gear 14, driving the installation tube 4, transmission box 5, and conical drill cutter 7 to rotate as a whole, achieving rotary drilling. This allows the soil at the target depth to enter the sampling cylinder 6 under cutting action, completing the filling of the sampling cylinder 6.

[0045] After filling, the second telescopic drive component 31 extends to push the second transmission rack 32 to move. The second transmission rack 32 meshes with and drives the first gear 33 to rotate. The first gear 33 drives the transmission shaft 34 to rotate. The transmission shaft 34 drives the second gear 35 to rotate. The second gear 35 meshes with and drives the transmission gear ring 21 to rotate. The transmission gear ring 21 drives the transmission gear 22 to rotate. The transmission gear 22 then meshes with and drives the first transmission rack 23 to move. The first transmission rack 23 drives multiple baffles 8 to retract radially towards the center of the sampling cylinder 6. The cutting blade 9 on the baffle 8 then moves towards the center. At the same time, the rotating drive component 11 continues to drive the installation tube 4, transmission box 5, sampling cylinder 6, baffle 8 and cutting blade 9 to rotate as a whole. The cutting blade 9 performs circumferential cutting on the soil sample column in the sampling cylinder 6 while rotating, completely separating the soil sample from the surrounding soil. After cutting, the baffle 8 blocks and locks the soil sample in the sampling cylinder 6, effectively preventing the soil sample from falling out of the sampling cylinder 6 during the lifting process.

[0046] After the installation box 1 is removed from the sampling position, the second telescopic drive component 31 retracts, and the reverse transmission chain of the second transmission rack 32, the first gear 33, the transmission shaft 34, the second gear 35, the transmission gear ring 21, the transmission gear 22 and the first transmission rack 23 drives the baffle 8 away from the center of the sampling cylinder 6 to release the obstruction, and the sample in the sampling cylinder 6 is taken out. When sampling rocks, the water pump supplies water to the outer surface of the transmission box 5 through the water supply pipe, connecting pipe 42, installation pipe 4, and outlet pipe 41. The water flow covers the conical drill cutter 7 for cooling, reducing drilling damage and extending service life. At the same time, before sampling, the third telescopic drive component 61 drives the push plate 62 to move down to the end of the conical drill cutter 7 to block the feed end of the sampling cylinder 6, preventing soil from other layers from mixing in and causing pollution during the descent. When sampling, the push plate 62 moves up to open the feed end. After sampling is completed, the third telescopic drive component 61 drives the push plate 62 to push the sample out of the sampling cylinder 6 and discharge it through the discharge chute 71 on the transmission box 5, making it easy for staff to take it out. The whole process realizes in-situ accurate sampling of deep landslide crack zones.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A deep in-situ cutting and sampling device for landslide fissure zones, characterized in that, The device includes a mounting box (1), a first telescopic drive component (2) is fixedly connected inside the mounting box (1), a mounting plate (3) is fixedly connected to the output end of the first telescopic drive component (2), a mounting tube (4) is rotatably connected to the mounting plate (3), a first drive mechanism connected to the mounting plate (3) is connected to the outer surface of the mounting tube (4), the first drive mechanism is used to drive the mounting tube (4) to rotate, a transmission box (5) is fixedly connected to the outer surface of the mounting tube (4), a sampling cylinder (6) is fixedly connected inside the transmission box (5), and a conical drill cutter (7) is fixedly connected to the bottom of the transmission box (5). The transmission box (5) is slidably connected to a baffle (8) that is slidably connected to the sampling cylinder (6). A cutting blade (9) is fixedly connected to one side of the baffle (8). A transmission mechanism connected to the transmission box (5) is driven to one side of the baffle (8). The transmission mechanism is used to drive the baffle (8) to move towards the center of the sampling cylinder (6).

2. The in-situ cutting and sampling device for deep landslide crack zones according to claim 1, characterized in that, The first driving mechanism includes a rotating drive member (11) fixedly connected to the mounting plate (3). The output end of the rotating drive member (11) is fixedly connected to a drive shaft (12). A first drive gear (13) is fixedly sleeved on the outer surface of the drive shaft (12). A second drive gear (14) is meshed with the outer surface of the first drive gear (13) and fixedly sleeved on the mounting tube (4).

3. The in-situ cutting and sampling device for deep landslide crack zones according to claim 1, characterized in that, The transmission mechanism includes a transmission gear ring (21) rotatably connected to the transmission box (5). The inner surface of the transmission gear ring (21) is meshed with a transmission gear (22). The outer surface of the transmission gear (22) is meshed with a first transmission rack (23) fixedly connected to the baffle (8). The inner surface of the transmission gear ring (21) is meshed with a second drive mechanism connected to the transmission box (5). The second drive mechanism is used to drive the transmission gear ring (21) to rotate.

4. The in-situ cutting and sampling device for deep landslide crack zones according to claim 3, characterized in that, The second drive mechanism includes a second telescopic drive member (31) fixedly connected to the transmission box (5). The output end of the second telescopic drive member (31) is fixedly connected to a second transmission rack (32) slidably connected to the transmission box (5). A first gear (33) is meshed on one side of the second transmission rack (32). A transmission shaft (34) rotatably connected to the transmission box (5) is fixedly sleeved in the middle of the first gear (33). A second gear (35) meshing with the transmission gear ring (21) is fixedly sleeved on the outer surface of the transmission shaft (34).

5. The in-situ cutting and sampling device for deep landslide crack zones according to claim 1, characterized in that, The outer surface of the mounting pipe (4) is fixedly connected to the water outlet pipe (41) which is fixedly connected to the transmission box (5). The bottom end of the mounting pipe (4) is rotatably connected to the connecting pipe (42), which is fixedly connected to the mounting plate (3).

6. The in-situ cutting and sampling device for deep landslide crack zones according to claim 1, characterized in that, The top of the mounting box (1) is fixedly connected to a connecting block (51), and a sampling tube (52) is threaded onto the connecting block (51).

7. The in-situ cutting and sampling device for deep landslide crack zones according to claim 1, characterized in that, A third telescopic drive component (61) is fixedly connected inside the sampling cylinder (6), and a push plate (62) that is slidably connected to the output end of the third telescopic drive component (61) is fixedly connected to the sampling cylinder (6).

8. The in-situ cutting and sampling device for deep landslide crack zones according to claim 1, characterized in that, The outer surface of the transmission box (5) is provided with a discharge groove (71), and a reinforcing plate is fixedly connected inside the transmission box (5). The reinforcing plate is fixedly connected to the sampling cylinder (6).

Images