Geotechnical engineering drilling device

Abstract

The invention discloses a geotechnical engineering drilling device, and relates to the technical field of geotechnical engineering. The geotechnical engineering drilling device comprises a vehicle body, a rotating assembly and a drilling assembly, and a rotating disc and an adjusting assembly are arranged on the vehicle body. According to the geotechnical engineering drilling device, a large amount of rock powder and dust can be generated through high-speed rotary drilling of the drilling rod, the dust can diffuse in an operation area, respiratory diseases are caused after workers inhale the dust, the sight line of a drilling point position can be blocked, and even the dust is accumulated and enters a transmission part of the drilling device to cause abrasion and shorten the service life of equipment; the cleaning function of the water pump and the annular pipe can synchronously reduce dust during drilling, dust is inhibited and washed in time through water flow or a cleaning medium, dust diffusion is avoided, the working environment is improved, the body health of workers is protected, the drilling area can be clearly exposed, operators can conveniently observe the drilling condition in real time, and the drilling efficiency is improved. Meanwhile, pollution of dust to internal parts of equipment is reduced, and the maintenance frequency and cost of the equipment are reduced.

Description

Technical Field

[0001] This invention relates to the field of geotechnical engineering technology, and in particular to a geotechnical drilling tool. Background Technology

[0002] Chinese patent document CN212535565U discloses a drilling device for geotechnical engineering exploration, comprising a frame, a laser positioning and detection device mounted on the frame, and a drilling device mounted on the frame. The frame includes supporting legs and rectangular frames mounted on the supporting legs. Multiple laser positioning and detection devices are distributed at various locations on the frame. Each laser positioning and detection device includes a laser transmitter mounted on the supporting legs and the rectangular frames, and a laser receiver mounted outside the frame. The laser receiver has a circular receiving area. This utility model provides a drilling device for geotechnical engineering exploration. By installing multiple laser transmitters on the frame and multiple laser receivers outside the frame that cooperate with the laser transmitters, when the laser signal leaves the receiving area, the laser receiver issues a warning signal, indicating that the frame has tilted or the drill rod has encountered significant resistance. Workers then inspect and test the drilling device.

[0003] The aforementioned drilling tool for geotechnical engineering exploration can only be used for drilling the ground surface and is difficult to use for drilling walls. Therefore, its application range is narrow and its practicality is low. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a geotechnical drilling tool that can only perform drilling on the ground and is difficult to drill on walls.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a geotechnical engineering drilling tool, comprising a vehicle body, a rotating assembly, and a drilling assembly, wherein the vehicle body is provided with a rotating disk and an adjustment assembly;

[0006] A rotating component is disposed on the adjusting component. The rotating component includes a fixed sleeve plate and a second drive motor. The second drive motor is used to drive the fixed sleeve plate to rotate.

[0007] The drilling assembly is mounted on the rotating assembly. The drilling assembly includes a drilling plate, a drilling rod, an annular pipe, and a water pump. The drilling rod is located inside the annular pipe.

[0008] Preferably, a rotating column is rotatably mounted on the top of the vehicle body, and a rotating disk is fixedly mounted on the top of the rotating column.

[0009] Preferably, the adjustment assembly further includes a gearbox, a rotating rod, a gear, a first drive motor, a gear ring, a support column, and a U-shaped frame. The gearbox is fixedly installed on the top of the vehicle body. The gearbox and the rotating column are rotatably mounted. A rotating rod is rotatably mounted on the top inner side of the gearbox and the top of the vehicle body. A gear is fixedly installed on the outer wall of the rotating rod. A gear ring is fixedly installed on the outer wall of the rotating column. The gear and the gear ring mesh with each other. The first drive motor is fixedly installed on the top of the gearbox. The shaft of the first drive motor is fixedly installed on one end of the rotating rod. A support column is fixedly installed on the top of the rotating disk. A U-shaped frame is fixedly installed on the top of the support column.

[0010] Preferably, the rotating assembly further includes a turbine housing, a transmission rod, a connecting rod, a worm gear, a worm, a fixed side column, and a transmission box. The transmission rod is rotatably mounted on the front inner wall and the rear inner wall of the U-shaped frame. A fixed sleeve plate is fixedly mounted on the outer wall of the transmission rod. A fixed side column is fixedly mounted on one side of the fixed sleeve plate, and a transmission box is fixedly mounted on one side of the fixed side column.

[0011] Preferably, a turbine housing is fixedly installed on the front side of the U-shaped frame, worm gears are rotatably installed on the inner walls of both sides of the turbine housing, a connecting rod is rotatably installed on the inner wall of the front side of the turbine housing, one end of the connecting rod is fixedly installed with one end of the transmission rod, a worm wheel is fixedly installed on the outer wall of the connecting rod, the worm wheel meshes with the worm gear, a second drive motor is fixedly installed on one side of the turbine housing, and the shaft of the second drive motor is fixedly installed with one end of the worm gear.

[0012] Preferably, the drilling assembly further includes a third drive motor, a threaded rod, a guide vertical rod, a lifting block, a movable side plate, a connecting column, a supporting inclined plate, a fourth drive motor, a damping limit spring, a movable baffle, a movable side plate, a water supply hose, a sliding vertical rod, and a rear side plate. The threaded rod is rotatably installed on the inner top and inner bottom of the transmission box, and the guide vertical rod is fixedly installed on the inner top and inner bottom of the transmission box. The lifting block is slidably installed on the outer wall of the guide vertical rod. The lifting block and the threaded rod are threadedly installed. The third drive motor is fixedly installed on the top of the transmission box, and the shaft of the third drive motor is fixedly installed on one end of the threaded rod.

[0013] Preferably, a movable side plate is fixedly installed on one side of the lifting block, and a supporting inclined plate is fixedly installed on the top and bottom of the movable side plate. There are two sets of supporting inclined plates. One side of the two sets of supporting inclined plates is fixedly installed with one side of the lifting block. A connecting column is fixedly installed on one side of the movable side plate, and a drilling plate is fixedly installed on one side of the connecting column. A rear side plate is fixedly installed on the rear side of the drilling plate. An opening is provided on one side of the transmission box for the movable side plate to move.

[0014] Preferably, a fourth drive motor is fixedly installed on the top of the drill plate, and a drill rod is rotatably installed on the bottom of the drill plate. The shaft of the fourth drive motor is fixedly installed to one end of the drill rod. A damping limit spring is fixedly installed on the bottom of the drill plate, and a movable side plate is fixedly installed on the bottom of the damping limit spring. There are two sets of movable side plates. Movable baffles are fixedly installed on the adjacent side walls of the two sets of movable side plates. An annular mounting plate is fixedly installed on the top of the movable baffle. An annular tube is fixedly installed inside the annular mounting plate. An opening for the drill rod to move is opened inside the movable baffle.

[0015] Preferably, a water pump is fixedly installed on the top of the rear side plate, and a water delivery hose is fixedly connected to the output end of the water pump. One end of the water delivery hose extends into the interior of the annular mounting plate and is fixedly installed to the outer wall of the annular pipe.

[0016] Preferably, a nozzle is fixedly installed on the outer wall of the annular tube, and the nozzle communicates with the interior of the annular tube.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) This geotechnical drilling tool needs to deal with complex and diverse exploration scenarios. Different scenarios have significantly different requirements for drilling angles. Traditional fixed drilling angle equipment requires the overall movement of the drilling tool body, raising or digging trenches to adjust the angle, which is not only time-consuming and labor-intensive, but also prone to failure to achieve the target angle due to site limitations, resulting in limited exploration range or incomplete data collection. However, the first drive motor drives the rotary table to rotate, which can quickly adjust the drilling angle of the drilling rod without moving the main body of the equipment. The switch from vertical to inclined can be completed in a few minutes, which greatly improves the adaptability of the equipment to complex sites, reduces site leveling and equipment transportation costs, and avoids exploration blind spots caused by site limitations. At the same time, precise angle adjustment can ensure that the drilling rod is always aligned with the target exploration layer, avoiding the "misalignment" problem caused by directional deviation in traditional fixed-angle drilling, reducing the number of repeated drillings, improving the accuracy and reliability of exploration data, providing accurate geological basis for geotechnical engineering design, and reducing engineering safety risks caused by exploration data deviation.

[0019] (2) This geotechnical drilling tool can flexibly adjust the drill rod inclination angle through the second drive motor. Without changing the equipment, vertical ground drilling and horizontal mountain drilling can be achieved simply by adjusting the inclination angle, which greatly expands the applicability of the equipment and allows one device to adapt to the exploration needs of multiple scenarios in geotechnical engineering, namely "ground + mountain". At the same time, the elimination of equipment switching can reduce the time for equipment handling and debugging at the construction site, reduce the complexity of manual operation, and reduce equipment maintenance costs. In addition, the precise inclination angle adjustment can ensure that the drill rod is accurately aligned with the target detection layer when drilling in the mountain, avoiding the drilling deviation caused by the inability to adjust the inclination angle of traditional equipment. When drilling on the ground, the vertical inclination angle can also ensure the accuracy of stratum sampling, further improving the reliability of exploration data and reducing the engineering design risks caused by data deviation.

[0020] (3) The geotechnical drilling tool generates a large amount of rock powder and dust through high-speed rotation of the drill rod. This dust not only permeates the work area, causing respiratory diseases in workers after inhalation, but also obstructs the view of the drilling points. In some cases, dust accumulates in the transmission components of the drilling tool, causing wear and shortening the service life of the equipment. The cleaning function of the water pump and the annular pipe can simultaneously reduce dust during drilling. The dust is suppressed and flushed away in time through water flow or cleaning medium, preventing the spread of dust. This not only improves the working environment and protects the health of workers, but also clearly exposes the drilling area, making it convenient for operators to observe the drilling situation in real time. This system reduces dust contamination of internal equipment components, lowers maintenance frequency and costs. Furthermore, the cleaning function directly cleans the drill rod surface. During drilling, drill rods easily become contaminated with rock cuttings and clay, which increase drilling resistance, wear down the cutting edges, and can even mix with core samples. The water pump and annular pipe cleaning system promptly remove these contaminants, reducing drilling resistance, ensuring stable drilling efficiency, extending drill rod lifespan, lowering drill bit procurement costs, and ensuring core sample purity, thus preventing deviations in exploration conclusions due to sample contamination. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a cross-sectional view of the gearbox of the present invention;

[0024] Figure 3 This is a cross-sectional view of the annular mounting plate of the present invention;

[0025] Figure 4 This is a cross-sectional view of the transmission box of the present invention;

[0026] Figure 5 This is a cross-sectional view of the turbine housing, which is a schematic diagram of the present invention.

[0027] Figure 6 This is an enlarged view of part A of the present invention;

[0028] Figure 7 This is an enlarged view of part B of the present invention.

[0029] Reference numerals: 1. Vehicle body; 2. Rotating column; 3. Rotating disk; 4. Adjustment assembly; 401. Gearbox; 402. Rotating rod; 403. Gear; 404. First drive motor; 405. Gear ring; 406. Support column; 407. U-shaped frame; 5. Rotating assembly; 501. Turbine box; 502. Transmission rod; 503. Fixed sleeve plate; 504. Connecting rod; 505. Worm gear; 506. Worm; 507. Second drive motor; 508. Fixed side column; 509. Transmission box; 6. Drilling Components; 601, Third drive motor; 602, Threaded rod; 603, Guide vertical rod; 604, Lifting block; 605, Movable side plate; 606, Connecting column; 607, Supporting inclined plate; 608, Drill plate; 609, Fourth drive motor; 610, Drill rod; 611, Damping limit spring; 612, Movable baffle; 613, Movable side plate; 614, Water supply hose; 615, Ring pipe; 616, Sliding vertical rod; 617, Rear side plate; 618, Water pump; 619, Annular mounting plate. Detailed Implementation

[0030] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0031] Please see Figure 1-7 The present invention provides a technical solution: a geotechnical drilling tool, including a vehicle body 1, a rotating assembly 5, and a drilling assembly 6. The vehicle body 1 is provided with a rotating disk 3 and an adjusting assembly 4. The rotating assembly 5 is disposed on the adjusting assembly 4 and includes a fixed sleeve 503 and a second drive motor 507. The second drive motor 507 is used to drive the fixed sleeve 503 to rotate. The drilling assembly 6 is disposed on the rotating assembly 5 and includes a drilling plate 608. The drilling plate 608 is provided with a drilling rod 610, an annular pipe 615, and a water pump 618. The drilling rod 610 is located inside the annular pipe 615.

[0032] Furthermore, a rotating column 2 is rotatably mounted on the top of the vehicle body 1, and a rotating disk 3 is fixedly mounted on the top of the rotating column 2. The adjustment assembly 4 also includes a gearbox 401, a rotating rod 402, a gear 403, a first drive motor 404, a gear ring 405, a support column 406, and a U-shaped frame 407. The gearbox 401 is fixedly mounted on the top of the vehicle body 1, and the gearbox 401 and the rotating column 2 are rotatably mounted. A rotating rod 402 is rotatably mounted on the inner top of the gearbox 401 and the top of the vehicle body 1. A gear 403 is fixedly mounted on the outer wall of the rotating rod 402, and a gear ring 405 is fixedly mounted on the outer wall of the rotating column 2. The gear 403 meshes with the gear ring 405. The first drive motor 404 is fixedly mounted on the top of the gearbox 401, and the shaft of the first drive motor 404 is connected to the rotating rod 402. One end of the rotating disk 3 is fixedly installed, and a support column 406 is fixedly installed on the top of the rotating disk 3. A U-shaped frame 407 is fixedly installed on the top of the support column 406. It needs to face complex and diverse exploration scenarios. Different scenarios have significantly different requirements for drilling angle. Traditional equipment for fixing the drilling angle requires moving the entire drill body, raising or digging a trench to adjust the angle. This is not only time-consuming and labor-intensive, but also prone to failure to achieve the target angle due to site limitations, resulting in limited exploration range or incomplete data collection. However, the first drive motor 404 drives the rotating disk 3 to rotate, which can quickly adjust the drilling angle of the drill rod 610 without moving the main body of the equipment. The switch from vertical to inclined can be completed in a few minutes, which greatly improves the adaptability of the equipment to complex sites, reduces site leveling and equipment transportation costs, and avoids exploration blind spots caused by site limitations. Meanwhile, precise angle adjustment ensures that the drill rod 610 is always aligned with the target exploration layer, avoiding the "misalignment" problem caused by directional deviation in traditional fixed-angle drilling, reducing the number of repeated drilling operations, improving the accuracy and reliability of exploration data, providing accurate geological basis for geotechnical engineering design, and reducing engineering safety risks caused by exploration data deviation.

[0033] Furthermore, the rotating assembly 5 also includes a turbine housing 501, a transmission rod 502, a connecting rod 504, a worm gear 505, a worm 506, a fixed side column 508, and a transmission box 509. The transmission rod 502 is rotatably mounted on the front and rear inner walls of the U-shaped frame 407. A fixed sleeve 503 is fixedly mounted on the outer wall of the transmission rod 502. A fixed side column 508 is fixedly mounted on one side of the fixed sleeve 503, and a transmission box 509 is fixedly mounted on one side of the fixed side column 508. The turbine housing 501 is fixedly mounted on the front of the U-shaped frame 407. Worms 506 are rotatably mounted on the inner walls of both sides of the turbine housing 501. The front inner wall of the turbine housing 501 rotates... A connecting rod 504 is installed, one end of which is fixedly installed to one end of a transmission rod 502. A worm gear 505 is fixedly installed on the outer wall of the connecting rod 504, and the worm gear 505 meshes with a worm 506. A second drive motor 507 is fixedly installed on one side of the turbine box 501. The shaft of the second drive motor 507 is fixedly installed to one end of the worm 506. The second drive motor 507 can flexibly adjust the inclination angle of the drill rod 610. Without changing the equipment, vertical ground drilling and horizontal mountain drilling can be achieved simply by adjusting the inclination angle, which greatly expands the applicability of the equipment and allows one piece of equipment to adapt to the exploration needs of multiple scenarios of "ground + mountain" in geotechnical engineering. Meanwhile, the elimination of equipment switching reduces the time spent on equipment handling and debugging at the construction site, lowers the complexity of manual operation, and reduces equipment maintenance costs. In addition, precise inclination adjustment ensures that the drill rod 610 is accurately aligned with the target detection layer when drilling in the mountain, avoiding drilling deviations caused by the inability to adjust the inclination angle of traditional equipment. When drilling on the ground, the vertical inclination angle can also ensure the accuracy of stratum sampling, further improving the reliability of exploration data and reducing engineering design risks caused by data deviations.

[0034] Furthermore, the drilling assembly 6 also includes a third drive motor 601, a threaded rod 602, a guide vertical rod 603, a lifting block 604, a movable side plate 605, a connecting column 606, a support inclined plate 607, a fourth drive motor 609, a damping limit spring 611, a movable baffle 612, a movable side plate 613, a water supply hose 614, a sliding vertical rod 616, and a rear side plate 617. The threaded rod 602 is rotatably mounted on the inner top and inner bottom of the transmission box 509, and the guide vertical rod 603 is fixedly mounted on the inner top and inner bottom of the transmission box 509. The lifting block 604 is slidably mounted on the outer wall of the guide vertical rod 603, and the lifting block 604 and the threaded rod 602 are threadedly installed. A third drive motor 601 is fixedly installed on the top of the transmission box 509. The shaft of the third drive motor 601 is fixedly installed on one end of the threaded rod 602. A movable side plate 605 is fixedly installed on one side of the lifting block 604. Supporting inclined plates 607 are fixedly installed on the top and bottom of the movable side plate 605. There are two sets of supporting inclined plates 607. One side of the two sets of supporting inclined plates 607 is fixedly installed on one side of the lifting block 604. A connecting column 606 is fixedly installed on one side of the movable side plate 605. A drilling plate 608 is fixedly installed on one side of the connecting column 606. A rear side plate 617 is fixedly installed on the rear side of the drilling plate 608. A movable side plate 617 is provided on one side of the transmission box 509. The drill plate 608 has a movable opening. A fourth drive motor 609 is fixedly installed on the top of the drill plate 608. A drill rod 610 is rotatably installed on the bottom of the drill plate 608. The shaft of the fourth drive motor 609 is fixedly installed to one end of the drill rod 610. A damping limit spring 611 is fixedly installed on the bottom of the drill plate 608. A movable side plate 613 is fixedly installed on the bottom of the damping limit spring 611. There are two sets of movable side plates 613. Movable baffles 612 are fixedly installed on the adjacent side walls of the two sets of movable side plates 613. An annular mounting plate 619 is fixedly installed on the top of the movable baffle 612. An annular tube 615 is fixedly installed inside the annular mounting plate 619. An opening is provided inside for the drilling rod 610 to move. A water pump 618 is fixedly installed on the top of the rear side plate 617. The output end of the water pump 618 is fixedly connected to a water supply hose 614. One end of the water supply hose 614 extends into the interior of the annular mounting plate 619 and is fixedly installed to the outer wall of the annular pipe 615. A nozzle is fixedly installed on the outer wall of the annular pipe 615. The nozzle communicates with the interior of the annular pipe 615. The high-speed rotation of the drilling rod 610 will generate a large amount of rock powder and dust. This dust will not only permeate the work area, causing workers to inhale it and develop respiratory diseases, but it will also obstruct the view of the drilling point. In fact, the dust may accumulate in the transmission parts of the drill, causing wear and shortening the service life of the equipment.The cleaning functions of the water pump 618 and the annular pipe 615 can simultaneously suppress dust during drilling. Through water flow or cleaning media, dust is promptly suppressed and flushed away, preventing its spread. This improves the working environment, protects worker health, and clearly exposes the drilling area, allowing operators to observe the drilling progress in real time. It also reduces dust contamination of internal equipment components, lowering maintenance frequency and costs. Furthermore, the cleaning function can directly clean the surface of the drill rod 610. During drilling, the drill rod 610 easily becomes contaminated with rock cuttings and clay. These deposits increase drilling resistance, wear down the cutting edges of the drill rod 610, and can even mix with core samples. The cleaning function of the water pump 618 and the annular pipe 615 can promptly wash away these deposits, reducing drilling resistance, ensuring stable drilling efficiency, extending the service life of the drill rod 610, reducing drill bit procurement costs, and ensuring the purity of core samples, avoiding deviations in exploration conclusions due to sample contamination.

[0035] Working Principle: The first drive motor 404, second drive motor 507, third drive motor 601, fourth drive motor 609, and water pump 618 mentioned above are all existing technologies. Therefore, their internal structure and control methods do not need to be described in detail. In use, the vehicle body 1 is moved to a suitable position, and then the first drive motor 404 is started to drive the rotating rod 402 to rotate. The rotation of the rotating rod 402 drives the rotating column 2 to rotate through the gear 403 and gear ring 405. The rotation of the rotating column 2 drives the rotating disk 3 to rotate, and the rotation of the rotating disk 3 adjusts the position of the drill rod 610. After adjustment, the fourth drive motor 609 is started to drive the drill rod 610 to rotate, and then the third drive motor 601 is controlled to drive the lifting block 604 to descend, raising... The descent of the lowering block 604 causes the drill rod 610 to descend, enabling drilling into the soil. During drilling, the water pump 618 is activated, and water is delivered to the annular pipe 615 via the water hose 614. The water is then sprayed out through the nozzles on the annular pipe 615 to suppress dust during drilling. When the drill rod 610 is retrieved, it is cleaned through the annular pipe 615. When drilling into the mountain is required, the second drive motor 507 is activated, causing the worm gear 506 to rotate. The rotation of the worm gear 506 drives the connecting rod 504 to rotate via the worm wheel 505. The rotation of the connecting rod 504 drives the 52 and the fixed sleeve plate 503 to rotate, thereby adjusting the inclination angle of the drill rod 610.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A geotechnical drill rig characterised in that, Include: The vehicle body (1), the vehicle body (1) is equipped with rotating disc (3) and adjusting assembly (4); Rotary assembly (5), it is equipped on the adjusting assembly (4), the rotary assembly (5) includes fixed sleeve plate (503) and second drive motor (507), second drive motor (507) is used to drive fixed sleeve plate (503) to rotate; Drilling assembly (6), it is equipped on the rotary assembly (5), the drilling assembly (6) includes drilling plate (608), drilling plate (608) is equipped with drilling rod (610), annular tube (615) and water pump (618), drilling rod (610) is located inside annular tube (615).

2. A geotechnical engineering auger according to claim 1, wherein: The top of the vehicle body (1) is rotatably installed with a rotating column (2), and the top of the rotating column (2) is fixedly installed with a rotating disc (3).

3. A geotechnical engineering auger according to claim 2, wherein: The adjusting assembly (4) further includes a gear box (401), a rotating rod (402), a gear (403), a first drive motor (404), a gear ring (405), a support column (406) and a U-shaped frame (407), the top of the vehicle body (1) is fixedly installed with the gear box (401), the gear box (401) is rotatably installed with the rotating column (2), the inner top of the gear box (401) is rotatably installed with the rotating rod (402), the outer wall of the rotating rod (402) is fixedly installed with the gear (403), the outer wall of the rotating column (2) is fixedly installed with the gear ring (405), the gear (403) is engaged with the gear ring (405), the top of the gear box (401) is fixedly installed with the first drive motor (404), the rotating shaft of the first drive motor (404) is fixedly installed with one end of the rotating rod (402), the top of the rotating disc (3) is fixedly installed with the support column (406), and the top of the support column (406) is fixedly installed with the U-shaped frame (407).

4. A geotechnical drill according to claim 3, wherein: The rotary assembly (5) further includes a turbine box (501), a transmission rod (502), a connecting rod (504), a worm gear (505), a worm (506), a fixed side column (508) and a transmission box (509), the front inner wall and the rear inner wall of the U-shaped frame (407) are rotatably installed with the transmission rod (502), the outer wall of the transmission rod (502) is fixedly installed with the fixed sleeve plate (503), one side of the fixed sleeve plate (503) is fixedly installed with the fixed side column (508), and one side of the fixed side column (508) is fixedly installed with the transmission box (509).

5. A geotechnical engineering auger according to claim 4, wherein: The front side of the U-shaped frame (407) is fixedly installed with the turbine box (501), the inner walls of the two sides of the turbine box (501) are rotatably installed with the worm (506), the front inner wall of the turbine box (501) is rotatably installed with the connecting rod (504), one end of the connecting rod (504) is fixedly installed with one end of the transmission rod (502), the outer wall of the connecting rod (504) is fixedly installed with the worm gear (505), the worm gear (505) is engaged with the worm (506), one side of the turbine box (501) is fixedly installed with the second drive motor (507), and the rotating shaft of the second drive motor (507) is fixedly installed with one end of the worm (506).

6. A geotechnical auger according to claim 5, wherein: The drilling assembly (6) further includes a third driving motor (601), a threaded rod (602), a guide vertical rod (603), a lifting block (604), a movable side plate (605), a connecting column (606), a supporting inclined plate (607), a fourth driving motor (609), a damping limiting spring (611), a movable baffle (612), a movable side plate (613), a water delivery hose (614), a sliding vertical rod (616) and a rear side plate (617), the inner top and inner bottom of the transmission box (509) are rotationally installed with the threaded rod (602), the inner top and inner bottom of the transmission box (509) are fixedly installed with the guide vertical rod (603), the outer wall of the guide vertical rod (603) is slidingly installed with the lifting block (604), the lifting block (604) is in threaded connection with the threaded rod (602), the top of the transmission box (509) is fixedly installed with the third driving motor (601), and the rotating shaft of the third driving motor (601) is fixedly installed with one end of the threaded rod (602).

7. A geotechnical engineering auger according to claim 6, wherein: One side of the lifting block (604) is fixedly installed with the movable side plate (605), the top and bottom of the movable side plate (605) are fixedly installed with the supporting inclined plate (607), the number of the supporting inclined plate (607) is two groups, one side of the two groups of supporting inclined plates (607) is fixedly installed with one side of the lifting block (604), one side of the movable side plate (605) is fixedly installed with the connecting column (606), one side of the connecting column (606) is fixedly installed with the drilling plate (608), the rear side of the drilling plate (608) is fixedly installed with the rear side plate (617), and one side of the transmission box (509) is provided with an opening for the movement of the movable side plate (605).

8. A geotechnical drill according to claim 7, wherein: The top of the drilling plate (608) is fixedly installed with the fourth driving motor (609), the bottom of the drilling plate (608) is rotationally installed with the drilling rod (610), the rotating shaft of the fourth driving motor (609) is fixedly installed with one end of the drilling rod (610), the bottom of the drilling plate (608) is fixedly installed with the damping limiting spring (611), the bottom of the damping limiting spring (611) is fixedly installed with the movable side plate (613), the number of the movable side plate (613) is two groups, the adjacent side walls of the two groups of movable side plates (613) are fixedly installed with the movable baffle (612), the top of the movable baffle (612) is fixedly installed with the annular mounting plate (619), the inside of the annular mounting plate (619) is fixedly installed with the annular pipe (615), and the inside of the movable baffle (612) is provided with an opening for the movement of the drilling rod (610).

9. A geotechnical drill according to claim 8, wherein: The top of the rear side plate (617) is fixedly installed with the water pump (618), the output end of the water pump (618) is fixedly connected with the water delivery hose (614), and one end of the water delivery hose (614) extends into the inside of the annular mounting plate (619) and is fixedly installed with the outer wall of the annular pipe (615).

10. A geotechnical engineering auger according to claim 9, wherein: The outer wall of the annular pipe (615) is fixedly installed with a spray head, and the spray head is in communication with the inside of the annular pipe (615).

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