Drilling rig for geotechnical engineering investigation

Abstract

The utility model relates to the technical field of geotechnical engineering investigation, and discloses a drilling rig for geotechnical engineering investigation, which comprises a first mounting plate, the top of the first mounting plate is provided with a driving motor, and the bottom of the first mounting plate is provided with a drill rod matched with the driving motor for use. And first connecting rods are mounted on the periphery of the first mounting plate. According to the drilling device for geotechnical engineering investigation, when a drilling rod encounters a water gushing phenomenon during drilling operation, through cooperative use of a second mounting plate and a first mounting plate, the gushing phenomenon caused by high water pressure is intercepted at the two ends, impact force is reduced, water flow falls down, and the water flow is discharged from a gap reserved when the bottom of a baffle is mounted; and through the arrangement of the baffle, diffused water flow formed around the drill hole can be shielded, the water flow slides down along the inner wall of the baffle, the influence on the field working environment is reduced, and the safety and the working efficiency of workers are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical engineering investigation, in particular to a drilling device for geotechnical engineering investigation. Background Art

[0002] Geotechnical engineering investigation refers to the activities of identifying, analyzing, and evaluating the geological, environmental characteristics and geotechnical conditions of the construction site and preparing investigation documents according to the requirements of the construction project.

[0003] A Chinese patent discloses a drilling device for geotechnical engineering investigation (authorization announcement number CN216588464U). The patented technology saves manpower and improves efficiency by arranging a motor on a mounting plate and driving a drill rod to drill the soil through the motor.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: in drilling operations, penetrating water-bearing strata is a common situation. When the drill bit breaks through the groundwater layer, due to the pressure difference between the formation water and the external environment, the groundwater will quickly surge up along the borehole, forming the so-called water surge phenomenon. If the amount of water is large, the water pressure is sufficient to push the water column to a very high position and may spread around the borehole. Due to the lack of shielding devices, the on-site working environment will be harsh, affecting the safety and work efficiency of the staff, and may also cause equipment damage or interruption of drilling operations. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing technology has the disadvantage that the water surge phenomenon during drilling will cause a bad working environment on site and affect the safety and work efficiency of the staff. For this reason, we propose a drilling device for geotechnical engineering survey.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a drilling device for geotechnical engineering survey, comprising a first mounting plate, a driving motor is installed on the top of the first mounting plate, a drill rod used in conjunction with the driving motor is installed on the bottom of the first mounting plate, first connecting rods are installed on all sides of the first mounting plate, guide blocks are arranged on all sides of the first mounting plate, the first connecting rod is slidably connected to the inside of the guide block, a base is fixedly connected to the bottom of the guide block, a second mounting plate is arranged on the bottom of the first mounting plate, second connecting rods are installed on all sides of the second mounting plate, one end of the second connecting rod away from the second mounting plate is fixedly connected to the base, a through hole used in conjunction with the drill rod is opened on the surface of the second mounting plate, U-shaped blocks are installed on all sides of the second mounting plate, a baffle is rotatably connected to the inside of the U-shaped block through a rotating shaft, limiting columns are fixedly connected to both sides of the top of the baffle, limiting blocks are inserted into the surface of the limiting columns, and limiting holes used in conjunction with the limiting columns are opened on both sides of the limiting blocks.

[0007] Preferably, a hollow support column is provided on the surface of the limiting column, the bottom of the hollow support column is fixedly connected to the baffle, and the top of the hollow support column is abutted against the bottom of the limiting column.

[0008] Preferably, a winding box is installed at the bottom of the limit block, a shielding cloth is installed inside the winding box, a connecting block is fixedly connected to the bottom of the shielding cloth, a groove used in conjunction with the connecting block is provided at the top of the first connecting rod, hollow blocks are provided on both sides of the connecting block, the bottom of the hollow block is fixedly connected to the top of the first mounting plate, a slot is provided on the surface of the connecting block, a rod is inserted into the inside of the slot, and the rod is used in conjunction with the hollow block.

[0009] Preferably, the baffle is an arc-shaped plate.

[0010] Preferably, the baffle is a hollow plate.

[0011] Preferably, a drain pipe is installed penetratingly inside the baffle, and the number of the drain pipes is several.

[0012] Preferably, the drain pipe is installed at the bottom end of the baffle.

[0013] Technical effects and advantages of the utility model:

[0014] In the utility model, when the drill rod encounters water gushing during drilling operation, the second mounting plate and the first mounting plate are used in cooperation to intercept the gushing phenomenon caused by high water pressure at both ends, reduce the impact force and make the water flow fall, and discharge the water through the gap left when the baffle is installed at the bottom. Through the setting of the baffle, the water flow diffused around the borehole can be blocked, and the water flow can slide along the inner wall of the baffle, thereby reducing the impact on the on-site working environment and ensuring the safety and work efficiency of the staff.

[0015] In the utility model, the connecting block is fixed to the first connecting rod by snapping the connecting block and the groove, and then by cooperating with the insertion rod, the hollow block and the slot. When the first mounting plate drives the first connecting rod to move downward, the connecting block drives the shielding cloth to move downward in the gap between the baffles, and the gap between the baffles is filled by the shielding cloth to assist the baffles in blocking the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3This is a schematic diagram of the structure of the utility model in use state;

[0019] Figure 4 For this utility model Figure 3 A partial enlarged view of point B in the middle;

[0020] Figure 5 This is a schematic diagram of the storage box and the connection block structure of the utility model;

[0021] Figure 6 It is a cross-sectional view of the baffle of the present utility model.

[0022] Legend: 1. First mounting plate; 2. Drive motor; 3. Drill rod; 4. First connecting rod; 5. Guide block; 6. Base; 7. Second mounting plate; 8. Second connecting rod; 9. Through hole; 10. U-shaped block; 11. Baffle; 12. Limit column; 13. Limit block; 14. Hollow support column; 15. Groove; 16. Winding box; 17. Shielding cloth; 18. Connecting block; 19. Hollow block; 20. Insert rod; 21. Slot; 22. Limit hole; 23. Drain pipe. DETAILED DESCRIPTION

[0023] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] Reference Figure 1-Figure 4As shown, the utility model provides a technical solution: a drilling device for geotechnical engineering investigation, comprising a first mounting plate 1, a driving motor 2 is mounted on the top of the first mounting plate 1, a drill rod 3 used in conjunction with the driving motor 2 is mounted on the bottom of the first mounting plate 1, first connecting rods 4 are mounted around the first mounting plate 1, guide blocks 5 are arranged around the first mounting plate 1, the first connecting rods 4 are slidably connected to the inside of the guide blocks 5, a base 6 is fixedly connected to the bottom of the guide blocks 5, a second mounting plate 7 is arranged at the bottom of the first mounting plate 1, and second connecting rods 8 are mounted around the second mounting plate 7, One end of the second connecting rod 8 away from the second mounting plate 7 is fixedly connected to the base 6, and a through hole 9 used in conjunction with the drill rod 3 is provided on the surface of the second mounting plate 7. U-shaped blocks 10 are installed all around the second mounting plate 7. The interior of the U-shaped block 10 is rotatably connected to a baffle 11 through a rotating shaft. Both sides of the top of the baffle 11 are fixedly connected to limit columns 12. The surface of the limit column 12 is plugged with a limit block 13. Both sides of the limit block 13 are provided with limit holes 22 used in conjunction with the limit column 12. A hollow support column 14 is provided on the surface of the limit column 12. The bottom of the hollow support column 14 is fixedly connected to the baffle 11. The top of the hollow support column 14 is in contact with the bottom of the limiting column 12, and the baffle 11 is flipped over by the rotating shaft to make the baffle 11 perpendicular to the ground, and then the limiting hole 22 opened on the surface of the limiting block 13 is plugged into the limiting column 12 to limit the baffle 11. The mutual limitation between the two baffles 11 prevents the baffle 11 from tipping over. When the drill rod 3 encounters water surge during drilling operations, the second mounting plate 7 and the first mounting plate 1 are used in conjunction to intercept the gushing phenomenon caused by high water pressure at both ends, reduce the impact force and make the water flow fall, so that the water flows in the space left when the baffle 11 is installed at the bottom. The water can be discharged through the gap, and through the setting of the baffle 11, the diffused water flow around the borehole can be blocked, and the water flow can slide along the inner wall of the baffle 11, reducing the impact on the on-site working environment to ensure the safety and work efficiency of the staff. When the drilling work is completed, the connection between the limit block 13 and the limit column 12 is released, and the baffle 11 is flipped to a state parallel to the ground through the rotating shaft to facilitate the staff to step on it and prevent the muddy and difficult to walk due to the ground being soaked by water. The winding box 16 is a prior art, which can automatically wind up the shielding cloth 17 when the connecting block 18 moves upward.

[0025] Reference Figure 1-Figure 4As shown, in this embodiment: a winding box 16 is installed at the bottom of the limit block 13, a shielding cloth 17 is installed inside the winding box 16, a connecting block 18 is fixedly connected to the bottom of the shielding cloth 17, a groove 15 for use with the connecting block 18 is opened on the top of the first connecting rod 4, hollow blocks 19 are arranged on both sides of the connecting block 18, the bottom of the hollow block 19 is fixedly connected to the top of the first mounting plate 1, a slot 21 is opened on the surface of the connecting block 18, and a rod is inserted into the slot 21 20, the plug rod 20 is used in conjunction with the hollow block 19, and the connecting block 18 is fixed to the first connecting rod 4 through the clamping connection between the connecting block 18 and the groove 15, and then the plug rod 20, the hollow block 19 and the slot 21 are used in conjunction with each other. When the first mounting plate 1 drives the first connecting rod 4 to move downward, the connecting block 18 drives the shielding cloth 17 to move downward in the gap between the baffles 11, and the shielding cloth 17 is used to fill the gap between the baffles 11 to assist the baffles 11 in blocking the water flow.

[0026] Reference Figure 1 and Figure 6 As shown, in this embodiment: the baffle 11 is an arc-shaped plate, the baffle 11 is a hollow plate, a drain pipe 23 is installed through the inside of the baffle 11, the number of the drain pipes 23 is several, and the drain pipes 23 are installed at the bottom end of the baffle 11. Through the design of the arc-shaped plate, the baffle 11 can be surrounded into a circle to better block the water flow. By adopting a hollow plate, when high-strength materials are used for manufacturing, the weight of the baffle 11 is reduced without affecting the use. The setting of the drain pipe 23 is used to assist the discharge of the internal water flow to prevent excessive water flow from accumulating inside.

[0027] Working principle: the user flips the baffle 11 through the rotating shaft to make the baffle 11 perpendicular to the ground, and then limits the baffle 11 by plugging the limiting hole 22 opened on the surface of the limiting block 13 with the limiting column 12. The mutual limitation between the two baffles 11 prevents the baffle 11 from tipping over. When the drill rod 3 encounters water gushing during drilling operation, the second mounting plate 7 and the first mounting plate 1 are used in coordination to intercept the gushing phenomenon caused by high water pressure at both ends, reduce the impact force and make the water flow fall, and discharge the water from the gap left when the baffle 11 is installed at the bottom. The setting of the baffle 11 can block the diffused water flow around the borehole, and make the water flow slide along the inner wall of the baffle 11, reducing the impact on the on-site working environment to ensure the safety and work efficiency of the staff. When the drilling work is completed, the connection between the limiting block 13 and the limiting column 12 is released, and the baffle 11 is The rotating shaft is flipped to a state parallel to the ground to facilitate the staff's stepping and prevent the muddy and difficult walking situation caused by the ground being soaked by water. The connecting block 18 is connected with the groove 15, and then the connecting block 18 is fixed to the first connecting rod 4 through the cooperation of the plug rod 20, the hollow block 19 and the slot 21. When the first mounting plate 1 drives the first connecting rod 4 to move downward, the connecting block 18 drives the shielding cloth 17 to move downward in the gap between the baffles 11, and the shielding cloth 17 is used to fill the gap between the baffles 11 to assist the baffles 11 in blocking the water flow. Through the design of the arc plate, the baffle 11 can be surrounded into a circle to better block the water flow. By adopting a hollow plate, when it is made of high-strength materials, the weight of the baffle 11 is reduced without affecting the use. The internal water flow is assisted by the setting of the drain pipe 23 to prevent excessive water flow from accumulating inside.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drilling device for geotechnical engineering investigation, comprising a first mounting plate (1), characterized in that: A driving motor (2) is installed on the top of the first mounting plate (1), a drill rod (3) used in conjunction with the driving motor (2) is installed on the bottom of the first mounting plate (1), first connecting rods (4) are installed on all four sides of the first mounting plate (1), guide blocks (5) are arranged on all four sides of the first mounting plate (1), the first connecting rod (4) is slidably connected to the inside of the guide block (5), a base (6) is fixedly connected to the bottom of the guide block (5), a second mounting plate (7) is arranged on the bottom of the first mounting plate (1), and second connecting rods (8) are installed on all four sides of the second mounting plate (7), One end of the second connecting rod (8) away from the second mounting plate (7) is fixedly connected to the base (6); a through hole (9) for use with the drill rod (3) is provided on the surface of the second mounting plate (7); U-shaped blocks (10) are installed around the second mounting plate (7); a baffle (11) is rotatably connected to the inside of the U-shaped block (10) via a rotating shaft; both sides of the top of the baffle (11) are fixedly connected to limiting columns (12); a limiting block (13) is inserted into the surface of the limiting column (12); and limiting holes (22) for use with the limiting column (12) are provided on both sides of the limiting block (13).

2. A drilling device for geotechnical engineering investigation according to claim 1, characterized in that: A hollow support column (14) is provided on the surface of the limiting column (12); the bottom of the hollow support column (14) is fixedly connected to the baffle (11); and the top of the hollow support column (14) abuts against the bottom of the limiting column (12).

3. A drilling device for geotechnical engineering investigation according to claim 1, characterized in that: A winding box (16) is installed at the bottom of the limit block (13), a shielding cloth (17) is installed inside the winding box (16), a connecting block (18) is fixedly connected to the bottom of the shielding cloth (17), a groove (15) for use with the connecting block (18) is provided at the top of the first connecting rod (4), hollow blocks (19) are provided on both sides of the connecting block (18), the bottom of the hollow block (19) is fixedly connected to the top of the first mounting plate (1), a slot (21) is provided on the surface of the connecting block (18), an insert rod (20) is inserted into the inside of the slot (21), and the insert rod (20) is used in conjunction with the hollow block (19).

4. A drilling device for geotechnical engineering investigation according to claim 1, characterized in that: The baffle (11) is an arc-shaped plate.

5. The drilling device for geotechnical engineering investigation according to claim 1, characterized in that: The baffle (11) is a hollow plate.

6. A drilling device for geotechnical engineering investigation according to claim 1, characterized in that: A drain pipe (23) is installed through the interior of the baffle (11), and the number of the drain pipes (23) is several.

7. A drilling device for geotechnical engineering investigation according to claim 6, characterized in that: The drain pipe (23) is installed at the bottom end of the baffle (11).

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