A geotechnical drilling and sampling device and a sampling method

Abstract

This application relates to the technical field of geotechnical drilling equipment, and in particular to a geotechnical drilling sampling equipment and a sampling method, which includes a drill pipe and a drill bit arranged at the end of the drill pipe. A collection groove is opened in the drill pipe, and a sampling port communicating with the collection groove is opened on the side surface of the drill pipe. A plurality of collection plates are arranged around the center line of the drill pipe in the collection groove. One side of the collection plate close to the center of the drill pipe is connected to the adjacent collection plate. The collection plate is rotatably arranged around the center line of the drill pipe. A sampling groove for collecting samples is formed by enclosing the inner wall of the collection groove by two adjacent collection plates. An installation plate is rotatably arranged outside the drill pipe, and an auxiliary device for adjusting the position of the collection plate is arranged on the installation plate. A scraping plate is rotatably arranged at the sampling port, and the auxiliary device is connected to the scraping plate for adjusting the position of the scraping plate. This application has the effect of improving the sampling efficiency.

Description

Technical Field

[0001] This application relates to the technical field of geotechnical drilling equipment, and particularly relates to a geotechnical drilling sampling equipment and a sampling method. Background Art

[0002] Geotechnical drilling sampling equipment is auxiliary equipment for geotechnical drilling. Geotechnical sampling equipment is used to collect and extract geotechnical materials from the surface layer of soil in the natural environment, so that relevant personnel can analyze the composition of the soil based on the samples, thereby determining whether the drilling area is suitable for construction, etc.

[0003] In the related art regarding geotechnical drilling sampling equipment, there is a fixed support. A hydraulic cylinder is arranged on the fixed support. The bottom of the hydraulic cylinder is fixed on the support. The piston rod of the hydraulic cylinder is connected to a sampling rod. The head of the sampling rod is in a sharp angle shape. A group of sampling grooves are evenly distributed on the sampling rod. A cover plate is arranged on the sampling groove. The cover plates are connected together by a pull rod. There is a cover plate slideway on the sampling rod. During sampling, the sampling rod is driven by the hydraulic cylinder to move to a specified position, and the geotechnical materials at this position are collected into the sampling groove, completing the sampling of the specified position in the geotechnical materials.

[0004] In the above related art, when samples at different depths need to be obtained, drilling and sampling need to be carried out multiple times, which affects the sampling efficiency. Summary of the Invention

[0005] In order to improve the sampling efficiency, this application provides a geotechnical drilling sampling equipment and a sampling method.

[0006] In a first aspect, this application provides a geotechnical drilling sampling equipment.

[0007] The following technical scheme is adopted:

[0008] A geotechnical drilling sampling equipment includes a drill pipe and a drill bit arranged at the end of the drill pipe. A collection groove is opened in the drill pipe. A sampling port communicating with the collection groove is opened on the side surface of the drill pipe. A plurality of collection plates are arranged around the center line of the drill pipe in the collection groove. One side of the collection plate close to the center of the drill pipe is connected to the adjacent collection plate. The collection plate is rotatably arranged around the center line of the drill pipe. A sampling groove for collecting samples is formed by enclosing the inner wall of the collection groove by two adjacent collection plates. An installation plate is rotatably arranged outside the drill pipe. An auxiliary device for adjusting the position of the collection plate is arranged on the installation plate. A scraping plate is rotatably arranged at the sampling port. The auxiliary device is connected to the scraping plate for adjusting the position of the scraping plate.

[0009] By adopting the above technical solution, the drill rod is moved to a specified depth, the scraper is driven by an auxiliary device to expand and open the sampling port, and then the drill rod is rotated to collect the sample into the sampling trough, and then the scraper is closed and the drill rod is moved to a different position again. The above operation is repeated for re-sampling, multiple samplings are completed, and the sampling efficiency is improved.

[0010] Optionally, the auxiliary device includes an auxiliary part, an auxiliary rod and an intermediate plate, the auxiliary rod is rotatably arranged inside the drill rod, the end of the auxiliary rod extends to the outside of the drill rod, the auxiliary part is arranged on a mounting plate, the output end of the auxiliary part is connected to the auxiliary rod to drive the auxiliary rod to rotate, the intermediate plate is arranged at one end of the auxiliary rod close to the collecting plate, and the intermediate plate is connected to the collecting plate.

[0011] By adopting the above technical solution, the auxiliary part drives the middle plate to rotate through the auxiliary rod, and the rotation of the middle plate drives the collecting plate to rotate, so that different sampling slots and sampling ports correspond to each other, so as to perform multiple sampling.

[0012] Optionally, the middle plate includes a guiding portion, a side surface of the guiding portion and an inner wall of the drill rod are spaced apart, a rotating portion is provided on the scraper near its rotating side, the rotating portion is provided between the guiding portion and the inner wall of the drill rod, a clearance groove is provided on the side surface of the guiding portion, a push plate is provided in the clearance groove, one side of the push plate extends to the outside of the clearance groove, and the side of the push plate away from the clearance groove rotates in a direction toward the rotating portion, and the guiding portion drives the push plate to rotate toward the rotating portion, and the rotating portion is rotated into the clearance groove by the push plate to open the sampling port.

[0013] By adopting the above technical solution, the rotation of the middle plate drives the rotating part to rotate into the clearance groove through the push plate, the rotating part rotates to open the scraper, and then the middle plate continues to rotate. The middle plate drives the drill rod and the scraper to rotate synchronously through the rotating part to perform sampling operations.

[0014] Optionally, the give-way slots and the push plates are provided in multiple groups, and the multiple groups of the give-way slots and the multiple sampling slots are provided in one-to-one correspondence.

[0015] By adopting the above technical solution, a plurality of push plates and clearance grooves are provided, so that sampling at different depths can be completed through the cooperation of the push plates and the rotating parts at different positions.

[0016] Optionally, the push plate is rotatably arranged in the yielding groove, and a rotating member is arranged at the rotating shaft of the push plate, and the rotating member is used to drive the push plate to rotate in a direction away from the rotating part.

[0017] By adopting the above technical solution, when the middle plate drives the collecting plate to rotate, the sampling slot rotates to the sampling port, and when the push plate rotates to the rotating part, the push plate rotates in the give way slot, thereby reducing the phenomenon of the push plate interfering with the rotation of the collecting plate.

[0018] Optionally, the rotating part and the scraper are spaced apart along the length direction of the drill rod, the intermediate plate also includes a barrier portion, the barrier portion is arranged between the rotating part and the scraper, the barrier portion abuts against the inner wall of the drill rod, the guide part is connected to the auxiliary rod, and the barrier portion is arranged on the side of the guide part away from the auxiliary rod.

[0019] By adopting the above technical solution, the barrier part is arranged between the rotating part and the scraper, and the sampling groove is sealed by the barrier plate, which can reduce the phenomenon of samples entering the give way groove, improve the stability of the cooperation between the push plate and the rotating part, and at the same time reduce the mixing of samples at different depths, thereby improving the sampling quality.

[0020] Optionally, a switch plate is provided on the side of the drill rod, and the switch plate is provided on the inner wall of the collecting tank for connecting the collecting tank with the outside, and the switch plate is fixed to the drill rod by bolts.

[0021] By adopting the above technical solution, after the sampling is completed, the switch plate is removed so as to take out the sample.

[0022] Optionally, a guiding bevel is provided on a side of the rotating part facing away from the scraper, and the guiding bevel is provided at an edge of an end of the rotating part close to an inner wall of the drill pipe.

[0023] By adopting the above technical solution, a guiding inclined plane moving inclined plate is provided to cooperate with the guiding inclined plane and the rotating part, so as to rotate the rotating part into the clearance groove so as to adjust the position of the scraper.

[0024] Optionally, the inner wall of the give way groove away from the push plate is arc-shaped, and the center of the arc side of the give way groove is arranged on the side close to the middle plate.

[0025] By adopting the above technical solution, when the guide part is rotated in the reverse direction, the rotating part can be rotated to the initial position through the arc side, so as to adjust the position of the rotating part again and close the scraper at the same time.

[0026] In the second aspect, the present application provides a rock drilling sampling method

[0027] The following technical solutions are adopted:

[0028] A rock and soil drilling sampling method, using the rock and soil drilling sampling device, comprises the following steps:

[0029] S1, the drill bit and the drill rod are driven by the drilling rig body to drill and move the drill bit to the specified depth;

[0030] S2, the auxiliary part drives the guide part to rotate through the auxiliary rod, and the guide part drives the rotating part to rotate into the clearance groove through the push plate, and the scraper is opened at the same time;

[0031] S3, the auxiliary part continues to drive the guide part to rotate through the auxiliary rod, and the push plate drives the drill rod and the scraper to rotate synchronously through the rotating part to take samples;

[0032] S4, after sampling is completed, the auxiliary rod is rotated in the opposite direction by the auxiliary part, and the rotating part is driven back to the initial position through the inner wall of the yield groove, and the scraper is driven to rotate and close;

[0033] S5, continue to move the drill bit to another sampling depth, the auxiliary part drives the collecting plate to rotate in the opposite direction through the guide part, and drives different sampling slots and scrapers to correspond;

[0034] S6, the auxiliary part drives the guide part to rotate forward and repeat S2 and S3 operations to perform new sampling;

[0035] S7, according to sampling requirements, the drill bit is moved to different depths for sampling;

[0036] S8, take out the drill rod, open the switch plate, and take out the sample.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. After sampling is completed, rotate the scraper to close the sampling port, then move the drill rod to different depths, and then use the auxiliary parts to drive the scraper to expand and drive the drill rod to rotate for sampling, so as to complete the sampling operation at multiple depths and improve the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the rock and soil drilling sampling equipment according to an embodiment of the present application.

[0040] Figure 2 It is a partial cross-sectional view of the rock and soil drilling sampling equipment according to an embodiment of the present application.

[0041] Figure 3 It is a structural view of the middle plate in the geotechnical drilling sampling equipment according to an embodiment of the present application.

[0042] Figure 4 It is a structural view of a scraper in a rock drilling sampling device according to an embodiment of the present application.

[0043] Figure 5 It is a structural view of the guide part in the rock drilling sampling equipment of an embodiment of the present application.

[0044] Figure 6 It is a structural view of the give-way slot in the rock and soil drilling sampling equipment according to an embodiment of the present application.

[0045] Figure 7 It is a structural view of the push plate in the geotechnical drilling sampling equipment according to an embodiment of the present application.

[0046] Figure 8 It is a structural view of the switch plate of the geotechnical drilling sampling equipment according to an embodiment of the present application.

[0047] Figure numerals: 1. drill rod; 12. drill bit; 13. mounting plate; 14. driving member; 15. bevel gear set; 2. collecting tank; 21. sampling port; 3. collecting plate; 31. sampling tank; 4. scraper; 41. rotating part; 42. guiding slope; 5. auxiliary device; 51. auxiliary part; 52. auxiliary rod; 53. intermediate plate; 6. guiding part; 61. giving way groove; 62. pushing plate; 621. rotating part; 7. barrier part; 8. switch plate. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-8 This application is described in further detail.

[0049] The present application discloses a rock and soil drilling sampling device.

[0050] Reference Figure 1 and Figure 2 The rock and soil drilling sampling equipment includes a drill rod 1 and a drill bit 12 arranged at the end of the drill rod 1. A mounting plate 13 is arranged at one end of the drill rod 1 away from the drill bit 12. The drill rod 1 is mounted on the drilling rig body through the mounting plate 13. The drill rod 1 is rotatably arranged on the mounting plate 13. A driving member 14 is arranged on the mounting plate 13. The driving member 14 can be set as a motor. A bevel gear set 15 is arranged at the output end of the driving member 14 and the end of the drill rod 1 to connect the two. The driving member 14 drives the drill rod 1 and the drill bit 12 to rotate through the bevel gear set 15 to drill in the rock and soil.

[0051] Reference Figure 3 and Figure 4 A collection tank 2 is provided in the drill rod 1, and the collection tank 2 is arranged near the drill bit 12. A sampling port 21 is provided on the side of the drill rod 1, and the sampling port 21 is connected to the collection tank 2. A collection plate 3 is provided in the collection tank 2, and multiple collection plates 3 are provided. In this embodiment, three collection plates 3 are provided. Multiple collection plates 3 are arranged around the center of the drill rod 1, and the side of the multiple collection plates 3 close to the center of the drill rod 1 is connected to the adjacent collection plates 3. Multiple collection plates 3 are arranged to rotate around the center line of the drill rod 1, and every two adjacent collection plates 3 and the inner wall of the collection tank 2 are surrounded to form a sampling tank 31. A scraper 4 is provided at the sampling port 21, and the scraper 4 is arranged to rotate at the sampling port 21, and the plane where the scraper 4 rotates is perpendicular to the drill rod 1.

[0052] After the drill bit 12 moves to the specified depth, the scraper 4 is rotated to the open state, so that the side of the scraper 4 facing away from its rotation side abuts against the inner wall of the borehole. Then, the drill pipe 1 is rotated to scrape the rock and soil on the inner wall of the borehole into the sampling groove 31 through the scraper 4. After sampling is completed, the scraper 4 is retracted. Again, the sampling port 21 is moved to different depth positions through the drill bit 12, and the collecting plate 3 is rotated to align different sampling grooves 31 with the sampling port 21. The above operations are repeated to sample again, and different samples are collected into different collecting grooves 2, thus completing sampling at different depths.

[0053] Referring to Figure 1 and Figure 2 , an auxiliary device 5 is provided on the drill pipe 1 and the mounting plate 13. The auxiliary device 5 includes an auxiliary member 51, an auxiliary rod 52 and an intermediate plate 53. The auxiliary rod 52 is rotatably arranged in the drill pipe 1 and is arranged along the central axis direction of the drill pipe 1. The end of the auxiliary rod 52 extends to the outside of the drill pipe 1. The auxiliary member 51 can be set as a motor, and the motor is arranged on the mounting plate 13. The output end of the motor is connected to the auxiliary rod 52 through a coupling. The intermediate plate 53 is arranged at the end of the auxiliary rod 52 facing away from the auxiliary member 51, and the intermediate plate 53 is connected to the collecting plate 3. During sampling, the auxiliary member 51 drives the intermediate plate 53 to rotate through the auxiliary rod 52, and the rotation of the intermediate plate 53 drives the collecting plate 3 to rotate to adjust the position of the sampling groove 31.

[0054] Referring to Figure 4 and Figure 5 , the intermediate plate 53 includes a guiding portion 6 and a partition portion 7 which are integrally arranged. The partition portion 7 is rotatably arranged in the drill pipe 1. The guiding portion 6 is arranged on the side of the partition portion 7 close to the auxiliary rod 52. The auxiliary rod 52 is connected to the guiding portion 6. The side surface of the guiding portion 6 is spaced from the inner wall of the drill pipe 1. A rotating portion 41 is arranged on the scraper 4 close to its rotation side. The rotating portion 41 is arranged in the gap between the guiding portion 6 and the inner wall of the drill pipe 1 and is arranged around the center of the drill pipe 1 in the direction away from the scraper 4. A relief groove 61 is formed on the side surface of the guiding portion 6, and a pushing plate 62 is arranged on the inner wall of the relief groove 61. The pushing plate 62 is arranged on the inner wall of the relief groove 61 on the side away from the scraper 4, and one side of the pushing plate 62 extends to the outside of the relief groove 61. The side of the pushing plate 62 arranged outside the relief groove 61 is inclined in the direction towards the rotating portion 41. That is, when the guiding portion 6 drives the pushing plate 62 to rotate in the direction towards the rotating portion 41, by abutting the pushing plate 62 against the end of the rotating portion 41, the guiding portion 6 continues to rotate, driving the rotating portion 41 to rotate into the relief groove 61 until it abuts against the inner wall of the relief groove 61, and at the same time driving the scraper 4 to rotate to open the sampling port 21. At the same time, the guiding portion 6 continues to rotate to drive the drill pipe 1 and the scraper 4 to rotate for sampling operations.

[0055] Referring to Figure 3 and Figure 4, a guiding inclined surface 42 is provided on the side of the rotating part 41 facing away from the scraping plate 4. The guiding inclined surface 42 is provided at the edge of the end of the rotating part 41 close to the inner wall of the drill pipe 1. When the guiding part 6 drives the pushing plate 62 to rotate, the pushing plate 62 drives the rotating part 41 to rotate through the guiding inclined surface 42, so as to adjust the position of the scraping plate 4 through the pushing plate 62.

[0056] Refer to Figure 5 and Figure 6 , the inner wall of the side of the relief groove 61 away from the pushing plate 62 is arc-shaped, and the center of the arc side is arranged on the side close to the auxiliary rod 52. After the guiding part 6 drives the scraping plate 4 and the drill pipe 1 to rotate for sampling through the pushing plate 62, the auxiliary rod 52 is rotated in the reverse direction, so that the arc side of the relief groove 61 abuts against the rotating part 41, driving the rotating part 41 to rotate to the initial position, and at the same time driving the scraping plate 4 to rotate to the closed state. So as to continue drilling to different depths for sampling.

[0057] Refer to Figure 5 and Figure 6 , multiple groups of relief grooves 61 and pushing plates 62 are provided. The multiple groups of relief grooves 61 and the multiple sampling grooves 31 are arranged in one-to-one correspondence. In this embodiment, three sampling grooves 31 are provided, and three groups of relief grooves 61 and pushing plates 62 are provided. When the sampling is completed, the guiding part 6 is rotated in the reverse direction to drive the scraping plate 4 to close the sampling port 21, and then the guiding part 6 is rotated in the reverse direction, while driving the collecting plate 3 to rotate, driving another sampling groove 31 to rotate to correspond to the sampling port 21. At this time, the adjacent group of relief grooves 61 and pushing plates 62 correspond, and then the guiding part 6 is rotated in the forward direction to drive the rotating part 41 to rotate through the pushing plate 62, and the sampling operation is performed again through the scraping plate 4.

[0058] Refer to Figure 6 and Figure 7 , the pushing plate 62 is arranged to rotate in the relief groove 61. A rotating member 621 is arranged at the rotating shaft of the pushing plate 62. The rotating member 621 can be set as a torsion spring. One end of the torsion spring is connected to the pushing plate 62, and the other end is connected to the inner wall of the relief groove 61. The rotating member 621 is used to drive the pushing plate 62 to rotate in the direction away from the rotating part 41, so that the pushing plate 62 abuts against the inner wall of the relief groove 61, so that when the guiding part 6 rotates, the position of the rotating part 41 can be adjusted through the pushing plate 62. When the guiding part 6 is rotated in the reverse direction to drive the collecting plate 3 to rotate, when the pushing plate 62 rotates to the rotating part 41, the pushing plate 62 rotates into the relief groove 61, reducing the phenomenon that the pushing plate 62 interferes with the rotation of the guiding part 6. When the pushing plate 62 rotates to be separated from the rotating part 41, the pushing plate 62 rotates to the initial position again under the action of the rotating member 621, so as to adjust the position of the rotating part 41 again.

[0059] Refer to Figure 5 and Figure 6The rotating part 41 and the scraper 4 are arranged at intervals along the length direction of the drill rod 1, and the rotating axes of the rotating part 41 and the scraper 4 are arranged on the same straight line. The partition is arranged between the rotating part 41 and the scraper 4, and the side of the partition is rotatably abutted against the inner wall of the drill rod 1. The sampling slot 31 is sealed by the baffle plate to reduce the phenomenon of the sample entering the give way slot 61, and improve the stability of the cooperation between the push plate 62 and the rotating part 41.

[0060] Reference Figure 8 , a sampling port 21 is arranged at the end of the collecting tank 2 away from the drill bit 12, that is, the sampling port 21 is arranged above the collecting tank 2. When the scraper 4 rotates to take samples, the sample scraped by the scraper 4 falls into the collecting tank 2 so that the sample can be collected. A switch plate 8 is arranged on the side of the drill rod 1. The switch plate 8 is rotatably arranged on the drill rod 1, and the switch plate 8 is arranged on the side wall of the collecting tank 2. The collecting tank 2 can be opened by rotating the switch plate 8. The switch plate 8 is arranged on the side of the scraper 4 close to the drill bit 12, and the switch plate 8 is fixed by bolts away from its rotating side. In the initial state, the switch plate 8 is in a closed state. After the sampling is completed, the bolts are removed, and then the switch plate 8 is rotated to open the collecting tank 2 to take out the sample.

[0061] The implementation principle of the present application is as follows: after the drill rod 1 is drilled to the specified depth, the auxiliary part 51 drives the guide part 6 to rotate, opens the scraper 4 through the push plate 62, and continues to drive the guide part 6 to rotate, thereby driving the drill rod 1 and the scraper 4 to rotate synchronously for sampling, and then the auxiliary part 51 drives the guide part 6 to rotate the part 621 in the opposite direction to close the scraper 4, and drilling is performed again to move the drill rod 1 to a new position, and then the auxiliary part 51 drives different sampling slots 31 and sampling ports 21 to correspond through the guide part 6, and repeats the above operations for sampling to complete sampling operations at different depths and improve sampling efficiency.

[0062] The present application also discloses a rock and soil drilling sampling method, which adopts the rock and soil drilling sampling equipment mentioned above.

[0063] A rock and soil drilling sampling method comprises the following steps:

[0064] S1, driving the drill bit 12 and the drill rod 1 to drill through the drilling rig body, and moving the drill bit 12 to a specified depth;

[0065] S2, the auxiliary member 51 drives the guide part 6 to rotate through the auxiliary rod 52, and the guide part 6 drives the rotating part 41 to rotate into the clearance groove 61 through the push plate 62, and the scraper 4 is opened at the same time;

[0066] S3, the auxiliary member 51 continues to drive the guide part 6 to rotate through the auxiliary rod 52, and the push plate 62 drives the drill rod 1 and the scraper 4 to rotate synchronously through the rotating part 41 to perform sampling;

[0067] S4, after the sampling is completed, the auxiliary rod 52 is rotated in the opposite direction by the auxiliary member 51, and the rotating part 41 is driven back to the initial position through the inner wall of the clearance groove 61, and the scraper 4 is driven to rotate and close;

[0068] S5, continue to move the drill bit 12 to another sampling depth, the auxiliary member 51 drives the collecting plate 3 to rotate in the opposite direction through the guide part 6, and drives different sampling slots 31 to correspond to the scraper 4;

[0069] S6, the auxiliary member 51 drives the guide part 6 to rotate forwardly and repeat the operations of S2 and S3 to perform new sampling;

[0070] S7, according to the sampling requirements, the drill bit 12 is moved to different depths for sampling;

[0071] S8, take out the drill rod 1, open the switch plate 8, and take out the sample.

[0072] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A geotechnical drilling and sampling device, comprising a drill pipe (1) and a drill bit (12) arranged at the end of the drill pipe (1), characterized in that: A collecting groove (2) is provided in the drill rod (1), a sampling port (21) connected to the collecting groove (2) is provided on the side of the drill rod (1), a plurality of collecting plates (3) are provided in the collecting groove (2) around the center line of the drill rod (1), a side of the collecting plate (3) close to the center of the drill rod (1) is connected to an adjacent collecting plate (3), the collecting plate (3) is rotatably provided around the center line of the drill rod (1), two adjacent collecting plates (3) and the inner wall of the collecting groove (2) are combined to form a sampling groove (31) for collecting samples, a mounting plate (13) is rotatably provided on the outside of the drill rod (1), an auxiliary device (5) for adjusting the position of the collecting plate (3) is provided on the mounting plate (13), a scraper (4) is rotatably provided at the sampling port (21), and the auxiliary device (5) is connected to the scraper (4) for adjusting the position of the scraper (4); The auxiliary device (5) comprises an auxiliary part (51), an auxiliary rod (52) and an intermediate plate (53); the intermediate plate (53) comprises a guide portion (6); a side surface of the guide portion (6) and an inner wall of the drill rod (1) are arranged at intervals; a rotating portion (41) is arranged on a rotating side of the scraper (4) close to the guide portion (6); the rotating portion (41) is arranged between the guide portion (6) and the inner wall of the drill rod (1); a clearance groove (61) is provided on a side surface of the guide portion (6); a push plate (62) is arranged in the clearance groove (61); one side of the push plate (62) extends to the outside of the clearance groove (61); a side of the push plate (62) facing away from the clearance groove (61) rotates in a direction toward the rotating portion (41); the guide portion (6) drives the push plate (62) to rotate toward the rotating portion (41); the push plate (62) rotates the rotating portion (41) into the clearance groove (61) to open the sampling port (21); The said giving way slots (61) and the pushing plates (62) are provided in a plurality of groups, and the plurality of groups of the giving way slots (61) and the plurality of sampling slots (31) are provided in a one-to-one correspondence; The push plate (62) is rotatably arranged in the clearance groove (61), and a rotating member (621) is arranged at the rotation axis of the push plate (62), and the rotating member (621) is used to drive the push plate (62) to rotate in a direction away from the rotating part (41).

2. The geotechnical drilling and sampling equipment according to claim 1, characterized in that: The auxiliary rod (52) is rotatably arranged inside the drill rod (1), and the end of the auxiliary rod (52) extends to the outside of the drill rod (1). The auxiliary component (51) is arranged on the mounting plate (13), and the output end of the auxiliary component (51) is connected to the auxiliary rod (52) for driving the auxiliary rod (52) to rotate. The intermediate plate (53) is arranged at one end of the auxiliary rod (52) close to the collecting plate (3), and the intermediate plate (53) is connected to the collecting plate (3).

3. The geotechnical drilling and sampling equipment according to claim 1, wherein: The rotating part (41) and the scraper (4) are arranged at intervals along the length direction of the drill rod (1); the intermediate plate (53) further comprises a barrier part (7); the barrier part (7) is arranged between the rotating part (41) and the scraper (4); the barrier part (7) abuts against the inner wall of the drill rod (1); the guide part (6) is connected to the auxiliary rod (52); the barrier part (7) is arranged on a side of the guide part (6) away from the auxiliary rod (52).

4. The geotechnical drilling and sampling equipment according to claim 1, characterized in that: A switch plate (8) is provided on the side of the drill rod (1); the switch plate (8) is provided on the inner wall of the collection tank (2) for connecting the collection tank (2) with the outside; the switch plate (8) is fixed to the drill rod (1) by bolts.

5. The geotechnical drilling and sampling equipment according to claim 1, wherein: A guide slope (42) is provided on the side of the rotating portion (41) facing away from the scraper (4), and the guide slope (42) is provided at the edge of the end of the rotating portion (41) close to the inner wall of the drill rod (1).

6. The geotechnical drilling and sampling equipment according to claim 5, wherein: The inner wall of the clearance groove (61) on the side away from the push plate (62) is arc-shaped, and the center of the arc side of the clearance groove (61) is arranged on the side of the arc side close to the auxiliary rod (52).

7. A method for geotechnical drilling and sampling, using the geotechnical drilling and sampling equipment as described in claim 4 or 6, characterized in that, The steps include: S1, driving the drill bit (12) and the drill rod (1) by the drilling rig body to perform drilling, and moving the drill bit (12) to a specified depth; S2, the auxiliary member (51) drives the guide part (6) to rotate via the auxiliary rod (52), and the guide part (6) drives the rotating part (41) to rotate into the clearance groove (61) via the push plate (62), and the scraper (4) is opened at the same time; S3, the auxiliary member (51) continues to drive the guide part (6) to rotate via the auxiliary rod (52), and the push plate (62) drives the drill rod (1) and the scraper (4) to rotate synchronously via the rotating part (41) to perform sampling; S4, after the sampling is completed, the auxiliary rod (52) is rotated in the opposite direction through the auxiliary member (51), and the rotating part (41) is driven to return to the initial position through the inner wall of the clearance groove (61), thereby driving the scraper (4) to rotate and close; S5, continue to move the drill bit (12) to another sampling depth, the auxiliary component (51) drives the collecting plate (3) to rotate in the opposite direction through the guide portion (6), and drives different sampling slots (31) and scrapers (4) to correspond; S6, the auxiliary member (51) drives the guide part (6) to rotate in the forward direction and repeat the operations S2 and S3 to perform new sampling; S7, according to sampling requirements, moving the drill bit (12) to different depths for sampling; S8, take out the drill rod (1), open the switch plate (8), and take out the sample.

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