Drilling machine device for rock-soil exploration in geological complex area

Abstract

The invention discloses a drilling machine device for rock-soil exploration in a geological complex area, and belongs to the technical field of drilling machine devices, the drilling machine device comprises a vehicle body, a ground penetrating radar is arranged at the top end of the vehicle body, a drill rod mounting seat is arranged above the vehicle body, guide blocks are fixedly connected to the two ends of the drill rod mounting seat, and guide rods slidably connected with the guide blocks are fixedly connected to the top end of the vehicle body; the top end of the vehicle body is provided with a transverse moving lifting carrying mechanism connected with the drill rod mounting base. By arranging the ground penetrating radar, the outer drill rod, the inner drill rod, the coring clamping cylinder and the traction mechanism, the ground penetrating radar is used for detecting the thickness value of each layer of underground rock soil, the independent coring function of each layer of underground rock soil is achieved, the whole section of rock core does not need to be cut off subsequently, the subsequent workload of workers is reduced, and the working efficiency is improved. Meanwhile, only a small section of rock core is arranged in the inner drill rod, so that the friction force between the rock core and the inner drill rod is small, the rock core and the inner drill rod are easy to separate, and the extraction difficulty of the rock core can be remarkably reduced.

Description

Technical Field

[0001] The invention relates to the technical field of drilling rigs, and in particular to a drilling rig for rock and soil exploration in geologically complex areas. Background Art

[0002] When it is necessary to identify geological conditions, explore hydrogeology, etc., it is necessary to use a drilling rig to sample and test the underground rock and soil layers;

[0003] The existing drilling rig mainly uses a drill rod and a drill bit to drill the drill rod into the ground when sampling, and then pulls out the drill rod to extract the drilled core from the ground, and then uses a special tool to take the core out of the drill rod. However, since the drill rod is long and the core to be taken out is in the shape of a long cylinder inside the drill rod, the friction between the whole core and the inner wall of the drill rod is large, which makes it more troublesome to take out the whole core. The taken out core also needs to be cut according to the position of the different layers below, so as to facilitate the subsequent detection and analysis of the cores of different layers. The existing removal method also includes cutting the core tube by pressing it or using a cutting tool (such as a saw blade or a cutter) to cut the core from the drill rod and then take it out. This not only damages the core tube, but also makes the operation more troublesome. Therefore, a drilling rig device for geotechnical exploration in geologically complex areas is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is difficult to extract the core drilled by the drilling rig and the subsequent core needs to be cut and classified according to different rock layers, which increases the difficulty of core processing, and to propose a drilling rig device for rock and soil exploration in geologically complex areas.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A drilling rig device for geotechnical exploration in geologically complex areas, comprising a vehicle body, a ground penetrating radar is arranged on the top of the vehicle body, a drill rod mounting seat is arranged above the vehicle body, both ends of the drill rod mounting seat are fixedly connected with guide blocks, the top of the vehicle body is fixedly connected with a guide rod slidably connected with the guide block, a transverse lifting and transporting mechanism connected with the drill rod mounting seat is installed on the top of the vehicle body, a driving cavity is provided inside the drill rod mounting seat, the top and bottom ends of the drill rod mounting seat are provided with aligned rotating holes, an external drill rod is rotatably connected in the rotating hole, and a gear driving mechanism connected with the external drill rod is provided inside the driving cavity;

[0007] The top of the drill rod mounting seat is fixedly connected to a mounting top plate through a column, and a rotating opening is opened in the interior of the mounting top plate, and a synchronous rotating cylinder is rotatably connected to the inner side of the rotating opening, and the top of the synchronous rotating cylinder is fixedly connected to a synchronous gear through a rotating shaft, and a motor mounting plate is installed on the top of the mounting top plate, and a synchronous motor is installed on the inner top of the motor mounting plate, and the output end of the synchronous motor is fixedly connected to a transmission gear meshing with the synchronous gear, and a traction mechanism is arranged inside the synchronous rotating cylinder, and the traction mechanism is connected to a core clamping cylinder through a traction steel cable, and the core clamping cylinder is slidably connected to the inner wall of the outer drill rod, and an inner drill rod is slidably arranged inside the outer drill rod, and a blocking member that serves as a limit to the inner drill rod is rotatably arranged on the side wall of the outer drill rod near the top, and a through groove for the traction steel cable to pass through is opened inside the side wall of the inner drill rod;

[0008] The inner wall of the core clamping tube is provided with circumferentially distributed translational sliding grooves, and a clamping assembly for clamping the core is arranged inside the translational sliding grooves.

[0009] Preferably, a drill bit is fixedly connected to the bottom end of the outer drill rod, and the side wall thickness of the outer drill rod is smaller than the side wall thickness of the drill bit.

[0010] Preferably, a vertical limiting slot is provided on the inner wall of the outer drill rod, the top of which is open, and the surfaces of the inner drill rod and the core clamping tube are fixedly connected with a vertical strip block slidably arranged with the vertical limiting slot.

[0011] Preferably, the gear drive mechanism includes a driven gear fixedly connected to the surface of the outer drill rod and a drilling motor installed on the top of the drill rod mounting seat, and the output end of the drilling motor extends into the driving cavity and is fixedly connected to a driving gear meshing with the driven gear.

[0012] Preferably, the bottom end of the synchronously rotating cylinder is provided with holes distributed in a circumference, and a U-shaped block is fixedly connected to the bottom end of the synchronously rotating cylinder at the holes.

[0013] Preferably, the traction mechanism includes a traction motor installed at the top inner side of the synchronous rotating cylinder, a worm fixedly connected to the output end of the traction motor, and a worm wheel rotatably arranged on the inner side of the U-shaped block.

[0014] Preferably, the worm wheel is meshed with a worm, and a surface of the worm wheel is provided with an annular groove for winding up the traction cable.

[0015] Preferably, the clamping assembly includes a core clamping plate which is slidably arranged inside the translation slot and can only move horizontally, the surface of the core clamping plate is provided with a clamping protrusion for increasing friction, and a pressure block which moves vertically is slidably arranged inside the translation slot.

[0016] Preferably, a wire groove for passing the traction cable is provided at the top of the core clamping plate, and the top of the core clamping plate is arranged obliquely.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This scheme is equipped with a ground penetrating radar, an outer drill rod, an inner drill rod, a coring clamping tube and a traction mechanism. The ground penetrating radar is used to detect the thickness of each layer of underground rock and soil. The controller is used to control the operation of the horizontal lifting and transporting mechanism according to the detected thickness value, so that the horizontal lifting and transporting mechanism drives the outer drill rod to drill into the corresponding thickness value, and then the core is clamped by the coring clamping tube. At the same time, the rotation force of the outer drill rod is cooperated to twist the drilled core, thereby realizing the function of independent coring of each layer of underground rock and soil, without the need to subsequently cut off the entire section of the core, thereby reducing the subsequent workload of the staff.

[0019] 2. This scheme is provided with an outer drill rod, an inner drill rod, a core sampling clamping tube, a clamping assembly and a traction mechanism. After the drilled core is clamped by the clamping assembly inside the core sampling clamping tube, the core sampling clamping tube and the inner drill rod are pulled out of the outer drill rod under the action of the traction mechanism. Then, the outer drill rod is lifted up to separate it from the core. Then, the core sampling clamping tube is pulled up so that the clamping assembly no longer clamps the core and the core can be extracted. Since there is only a small section of the core inside the inner drill rod, the friction between the core and the inner drill rod is small, so they are easy to separate, which significantly reduces the difficulty of extracting the core. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a drilling rig for geotechnical exploration in geologically complex areas proposed by the present invention Figure 1 ;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of a drilling rig for geotechnical exploration in geologically complex areas proposed by the present invention Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the assembly structure of a traction mechanism, a gear drive mechanism, an outer drill rod and an inner drill rod in a drilling rig device for geotechnical exploration in geologically complex areas proposed by the present invention;

[0023] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 5 This is a schematic cross-sectional structure diagram of a core clamping tube in a drilling rig device for geotechnical exploration in geologically complex areas proposed by the present invention;

[0025] Figure 6The present invention is a schematic diagram of the cross-sectional structure of an outer drill rod and a drill bit in a drilling rig device for rock and soil exploration in geologically complex areas proposed by the present invention.

[0026] In the figure: 1. vehicle body; 2. ground penetrating radar; 3. mounting top plate; 4. drilling motor; 5. guide rod; 6. drill rod mounting seat; 7. outer drill rod; 8. motor mounting plate; 9. worm gear; 10. transverse lifting and transporting mechanism; 11. inner drill rod; 12. driven gear; 13. driving gear; 14. traction cable; 15. core clamping cylinder; 1501. translation slide; 16. drill bit; 17. worm; 18. clamping protrusion; 19. pressure block; 20. core clamping plate; 2001. wire groove; 21. blocking member; 22. synchronous rotating cylinder; 23. synchronous gear; 24. transmission gear; 25. traction motor. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example, see Figures 1 to 6 , a drilling rig device for rock and soil exploration in geologically complex areas, including a vehicle body 1, a ground penetrating radar 2 is arranged on the top of the vehicle body 1, and the ground penetrating radar 2 can detect the thickness of each underground rock layer. This is a prior art, and its working principle will not be repeated here;

[0031] A drill rod mounting seat 6 is arranged above the vehicle body 1, and guide blocks are fixedly connected to both ends of the drill rod mounting seat 6. A guide rod 5 slidably connected to the guide block is fixedly connected to the top of the vehicle body 1, and the guide rod 5 cooperates with the guide block to ensure the stability of the lifting of the drill rod mounting seat 6;

[0032] A transverse lifting and transporting mechanism 10 connected to the drill rod mounting seat 6 is installed at the top of the vehicle body 1. The transverse lifting and transporting mechanism 10 is a prior art. The transverse lifting and transporting mechanism 10 in the prior art is horizontally arranged. Here, it is arranged in a vertical state, and its free end is connected to the drill rod mounting seat 6 to ensure that the transverse lifting and transporting mechanism 10 can drive the drill rod mounting seat 6 to rise and fall. Its specific structure and working principle are not repeated here.

[0033] A driving cavity is provided inside the drill rod mounting seat 6, and aligned rotating holes are provided at the top and bottom ends of the drill rod mounting seat 6. An outer drill rod 7 is rotatably connected in the rotating hole, and a gear driving mechanism connected to the outer drill rod 7 is provided inside the driving cavity; further, the gear driving mechanism includes a driven gear 12 fixedly connected to the surface of the outer drill rod 7 and a drilling motor 4 installed on the top of the drill rod mounting seat 6, and the output end of the drilling motor 4 extends into the driving cavity and is fixedly connected to a driving gear 13 meshing with the driven gear 12.

[0034] It should be noted that the drilling motor 4 drives the driving gear 13 to rotate, the driving gear 13 drives the driven gear 12 meshing therewith to rotate, the driven gear 12 drives the outer drill rod 7 to rotate, and the outer drill rod 7 cooperates with the drill bit 16 to drill into the ground for core drilling operations.

[0035] The top of the drill pipe mounting seat 6 is fixedly connected to the mounting top plate 3 through a column, a rotating port is opened inside the mounting top plate 3, a synchronous rotating cylinder 22 is rotatably connected inside the rotating port, a synchronous gear 23 is fixedly connected to the top of the synchronous rotating cylinder 22 through a rotating shaft, a synchronous motor is installed on the inner top of the motor mounting plate 8, and a transmission gear 24 meshing with the synchronous gear 23 is fixedly connected to the output end of the synchronous motor;

[0036] It should be noted that the synchronous motor drives the transmission gear 24 to rotate, the transmission gear 24 drives the synchronous gear 23 meshing therewith to rotate, the synchronous gear 23 drives the synchronous rotating cylinder 22 to rotate, the synchronous rotating cylinder 22 drives the traction mechanism to rotate, and the traction mechanism drives the traction cable 14 to rotate synchronously with the outer drill rod 7 to avoid entanglement of the traction cable 14.

[0037] A traction mechanism is provided inside the synchronous rotating cylinder 22, and the traction mechanism is connected to the core clamping cylinder 15 through the traction steel cable 14. Furthermore, the bottom end of the synchronous rotating cylinder 22 is provided with holes distributed in a circumference (the traction steel cable 14 is provided through the holes), and the bottom end of the synchronous rotating cylinder 22 is located at the holes and fixedly connected with a U-shaped block. Furthermore, the traction mechanism includes a traction motor 25 installed on the top inner side of the synchronous rotating cylinder 22, a worm 17 fixedly connected to the output end of the traction motor 25, and a worm wheel 9 rotatably arranged on the inner side of the U-shaped block. Furthermore, the worm wheel 9 is meshed with the worm 17, and the surface of the worm wheel 9 is provided with an annular groove for winding up the traction steel cable 14.

[0038] It should be noted that the traction motor 25 drives the worm 17 at its output end to rotate, and the worm 17 drives the worm wheel 9 meshing therewith to rotate. The rotation of the worm wheel 9 will reel in the traction cable 14, and the traction cable 14 drives the pressure block 19 to move upward, thereby providing driving force for the clamping assembly to clamp the core.

[0039] The core clamping tube 15 is slidably connected to the inner wall of the outer drill rod 7, and the inner drill rod 11 is slidably arranged inside the outer drill rod 7. A blocking member 21 is rotatably arranged near the top of the side wall of the outer drill rod 7 to limit the inner drill rod 11. A through groove for the traction cable 14 to pass through is provided inside the side wall of the inner drill rod 11.

[0040] It should be noted that the setting of the inner drill rod 11 can ensure that the drilled core is of consistent thickness from top to bottom. At the same time, when the core clamping tube 15 is driven upward by the traction steel cable 14, the inner drill rod 11 uses its own gravity to apply downward pressure to the core clamping tube 15, so that the traction steel cable 14 passing through the core clamping tube 15 is always in a taut state, thereby ensuring that the core clamping plate 20 always squeezes the core, making it easier for the core clamping tube 15 to take the core out from the inside of the outer drill rod 7.

[0041] The inner wall of the core sampling clamping tube 15 is provided with a circumferentially distributed translation groove 1501, and a clamping assembly for clamping the core is arranged inside the translation groove 1501. Furthermore, the clamping assembly includes a core clamping plate 20 which is slidably arranged on the inner side of the translation groove 1501 and can only move horizontally. The surface of the core clamping plate 20 is provided with a clamping protrusion 18 for increasing friction, and a vertically movable pressure block 19 is slidably arranged on the inner side of the translation groove 1501. Furthermore, a wire groove 2001 for the traction cable 14 to pass through is provided at the top of the core clamping plate 20, and the top of the core clamping plate 20 is arranged obliquely.

[0042] It should be noted that when the traction cable 14 drives the pressure block 19 to move upward, the pressure block 19 can squeeze the inclined surface of the top of the core clamping plate 20, so that the core clamping plate 20 moves toward the core, thereby realizing the clamping and fixing function of the core, which is convenient for the subsequent twisting and extraction of the core.

[0043] Furthermore, a drill bit 16 is fixedly connected to the bottom end of the outer drill rod 7 , and the thickness of the side wall of the outer drill rod 7 is smaller than the thickness of the side wall of the drill bit 16 .

[0044] Furthermore, a vertical limit slot is provided on the inner wall of the outer drill rod 7, the top of which is in an open state, and the surfaces of the inner drill rod 11 and the core clamping tube 15 are fixedly connected with vertical strip blocks slidably arranged with the vertical limit slot, so as to ensure that when the outer drill rod 7 rotates, the inner drill rod 11 and the core clamping tube 15 can be driven to rotate synchronously.

[0045] When the present invention is used, the thickness of each underground rock layer is first detected by the ground penetrating radar 2, and the thickness value of each detected rock layer is uploaded to the controller. The controller controls the transverse movement, lifting and transporting mechanism 10 to work according to the thickness value (starting from the thickness value of the topmost rock layer). The transverse movement, lifting and transporting mechanism 10 drives the drill rod mounting seat 6 to move downward, and then drives the outer drill rod 7 to move downward. At the same time, the controller is used to start the drilling motor 4 and the synchronous motor. The drilling motor 4 drives the driving gear 13 to rotate, the driving gear 13 drives the driven gear 12 meshing therewith to rotate, the driven gear 12 drives the outer drill rod 7 to rotate, and the outer drill rod 7 drives the drill bit 16 to rotate, so as to realize the drilling function of the underground rock layer. The synchronous motor drives the transmission gear 24 to rotate, the transmission gear 24 drives the synchronous gear 23 meshing therewith to rotate, the synchronous gear 23 drives the synchronous rotating cylinder 22 to rotate, the synchronous rotating cylinder 22 drives the traction mechanism to rotate, and the traction mechanism drives the traction cable 14 to rotate synchronously with the outer drill rod 7 to avoid the entanglement of the traction cable 14.

[0046] When the outer drill rod 7 moves down to the measured thickness, the controller controls the transverse lifting and transporting mechanism 10 to stop working, and the outer drill rod 7 stops moving down at this time. Then the controller controls the traction motor 25 to work, and the traction motor 25 drives the worm 17 at its output end to rotate, and the worm 17 drives the worm wheel 9 meshing therewith to rotate, and the worm wheel 9 rotates and reels the traction steel cable 14, and the traction steel cable 14 drives the pressure block 19 to move up, and the pressure block 19 moves up to squeeze the inclined surface at the top of the core clamping plate 20, so that the core clamping plate 20 moves toward the direction of the core, thereby realizing the clamping and fixing function of the core, and at the same time, under the action of the rotation force of the outer drill rod 7, the core clamping tube 15 can rotate the core, thereby realizing the twisting function of the core;

[0047] After the core is twisted off, the synchronous motor and the drilling motor 4 are turned off, and then the blocking member 21 is manually rotated to contact the limit of the inner drill rod 11. At this time, the traction cable 14 drives the core clamping tube 15 to move upward through the pressure block 19, and the core clamping tube 15 drives the inner drill rod 11 to move upward, and then the core clamped inside the core clamping tube 15 is taken out. When the core clamping tube 15 and the inner drill rod 11 are pulled out from the outer drill rod 7, the inner drill rod 11 is manually moved upward to separate it from the core (because there is only a small section of core inside the inner drill rod 11, the friction between the core and the inner drill rod 11 is small, so it is easy to separate). Then, the core clamping tube 15 is held and moved upward to separate the pressure block 19 from the core clamping plate 20, so that the core clamping plate 20 no longer clamps the core, so that the drilled core can be taken out from the core clamping tube 15.

[0048] After the core is taken out, the core clamping tube 15 and the inner drill rod 11 are reset to the inside of the outer drill rod 7, and then the controller controls the drilling motor 4 and the synchronous motor to work again, and at the same time controls the transverse lifting and transporting mechanism 10 to continue to move down a certain distance (the thickness value of the next rock layer). The above operations are repeated in this way, and the cores of different rock layers can be drilled independently. Since the length of each layer of core is short, the friction between the core and the inner wall of the inner drill rod 11 is small, which significantly facilitates the extraction of the core. Since the cores of the same rock layer are drilled independently, there is no need to subsequently truncate the entire section of the core, reducing the subsequent workload of the staff.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drilling rig for geotechnical exploration in geologically complex areas, comprising a vehicle body (1), characterized in that: A ground penetrating radar (2) is arranged at the top of the vehicle body (1), a drill rod mounting seat (6) is arranged above the vehicle body (1), guide blocks are fixedly connected to both ends of the drill rod mounting seat (6), a guide rod (5) slidably connected to the guide block is fixedly connected to the top of the vehicle body (1), a transverse lifting and transporting mechanism (10) connected to the drill rod mounting seat (6) is installed at the top of the vehicle body (1), a driving cavity is provided inside the drill rod mounting seat (6), the top and bottom ends of the drill rod mounting seat (6) are provided with aligned rotating holes, an external drill rod (7) is rotatably connected in the rotating hole, and a gear driving mechanism connected to the external drill rod (7) is provided inside the driving cavity; The top end of the drill rod mounting seat (6) is fixedly connected to a mounting top plate (3) via a column, a rotating opening is provided inside the mounting top plate (3), a synchronous rotating cylinder (22) is rotatably connected to the inner side of the rotating opening, the top end of the synchronous rotating cylinder (22) is fixedly connected to a synchronous gear (23) via a rotating shaft, a motor mounting plate (8) is installed at the top end of the mounting top plate (3), a synchronous motor is installed at the inner top end of the motor mounting plate (8), and a transmission gear (23) meshing with the synchronous gear (23) is fixedly connected to the output end of the synchronous motor. 24), a traction mechanism is arranged inside the synchronous rotating cylinder (22), the traction mechanism is connected to a core clamping cylinder (15) through a traction steel cable (14), the core clamping cylinder (15) is slidably connected to the inner wall of the outer drill rod (7), an inner drill rod (11) is slidably arranged inside the outer drill rod (7), a blocking member (21) is rotatably arranged on the side wall of the outer drill rod (7) near the top end to limit the inner drill rod (11), and a through groove for the traction steel cable (14) to pass through is opened inside the side wall of the inner drill rod (11); The inner wall of the core clamping tube (15) is provided with circumferentially distributed translational sliding grooves (1501), and a clamping assembly for clamping the core is arranged inside the translational sliding grooves (1501).

2. A drilling rig for geotechnical exploration in geologically complex areas according to claim 1, characterized in that: A drill bit (16) is fixedly connected to the bottom end of the outer drill rod (7), and the thickness of the side wall of the outer drill rod (7) is smaller than the thickness of the side wall of the drill bit (16).

3. The drilling rig for geotechnical exploration in geologically complex areas according to claim 1, characterized in that: The inner wall of the outer drill rod (7) is provided with a vertical limit slide groove, the top end of which is in an open state, and the surfaces of the inner drill rod (11) and the core clamping tube (15) are fixedly connected with vertical strip blocks slidably arranged with the vertical limit slide groove.

4. The drilling rig for geotechnical exploration in geologically complex areas according to claim 1, characterized in that: The gear drive mechanism comprises a driven gear (12) fixedly connected to the surface of an outer drill rod (7) and a drilling motor (4) mounted on the top of a drill rod mounting seat (6); the output end of the drilling motor (4) extends into the interior of a driving cavity and is fixedly connected to a driving gear (13) meshing with the driven gear (12).

5. The drilling rig device for geotechnical exploration in geologically complex areas according to claim 1, characterized in that: The bottom end of the synchronous rotating cylinder (22) is provided with holes distributed in a circumference, and a U-shaped block is fixedly connected to the bottom end of the synchronous rotating cylinder (22) at the holes.

6. The drilling rig for geotechnical exploration in geologically complex areas according to claim 5, characterized in that: The traction mechanism comprises a traction motor (25) mounted on the top inner side of a synchronous rotating cylinder (22), a worm (17) fixedly connected to the output end of the traction motor (25), and a worm wheel (9) rotatably arranged on the inner side of a U-shaped block.

7. A drilling rig for geotechnical exploration in geologically complex areas according to claim 6, characterized in that: The worm wheel (9) is meshed with the worm (17), and a ring groove for winding the traction cable (14) is provided on the surface of the worm wheel (9).

8. The drilling rig device for geotechnical exploration in geologically complex areas according to claim 1, characterized in that: The clamping assembly comprises a core clamping plate (20) which is slidably arranged inside a translational slide groove (1501) and can only move horizontally, the surface of the core clamping plate (20) is provided with a clamping protrusion (18) for increasing friction, and a pressure block (19) which moves vertically is slidably arranged inside the translational slide groove (1501).

9. The drilling rig for geotechnical exploration in geologically complex areas according to claim 8, characterized in that: A wire groove (2001) for the traction cable (14) to pass through is provided at the top of the core clamping plate (20), and the top of the core clamping plate (20) is arranged obliquely.

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