Double-hole drilling equipment for geotechnical engineering

The device can be detached by using a magnetic stone and a fixed rod connection structure. The baffle prevents mud from splashing, solving the problems of using the device in narrow places and mud splashing, improving the flexibility of the device and the safety of workers.

CN224093336UActive Publication Date: 2026-04-07HENAN CHENGXIN GEOTECHNICAL ENG SURVEY & DESIGN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing dual-hole drilling equipment for geotechnical engineering cannot be split and used in narrow spaces, and the dust and mud generated during drilling will be thrown at the workers.

Method used

The equipment is separable by using a magnetic stone and fixing rod structure, and is equipped with a baffle to prevent soil from splashing. The machine body is connected by the magnetic stone assembly and the fixing rod, and the baffle blocks soil during drilling.

Benefits of technology

It enables the equipment to be used independently in confined spaces and prevents mud from splashing, improving the flexibility of the equipment and worker safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses double-hole drilling equipment for geotechnical engineering, and relates to the technical field of double-hole drilling equipment for geotechnical engineering, the double-hole drilling equipment comprises a first machine body and a second machine body, specifically, the first machine body is located on the left side of the second machine body, and supporting legs are arranged at the bottoms of the two sides of the first machine body and the second machine body; the right side wall of the right side supporting leg of the first machine body and the left side wall of the left side supporting leg of the second machine body are fixedly connected with a first magnetic attraction stone and a second magnetic attraction stone correspondingly, the first magnetic attraction stone and the second magnetic attraction stone attract each other, and the top of the right side of the first machine body and the top of the left side of the second machine body are fixedly connected with a first fixing base and a second fixing base correspondingly; the right side wall of the first fixing base and the left side wall of the second fixing base are fixedly connected with a third magnetic attraction stone and a fourth magnetic attraction stone correspondingly, the third magnetic attraction stone and the fourth magnetic attraction stone attract each other, and through holes penetrate through the third magnetic attraction stone, the fourth magnetic attraction stone and the second fixing base correspondingly. According to the utility model, the double drills can be effectively separated to independently drill holes in a narrow place.
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Description

Technical Field

[0001] This utility model relates to the technical field of dual-hole drilling equipment for geotechnical engineering, specifically a dual-hole drilling equipment for geotechnical engineering. Background Technology

[0002] Geotechnical engineering is a systematic work that uses soil mechanics, rock mechanics and engineering geology as its theoretical foundation and employs various exploration and testing techniques to comprehensively manage, transform and utilize soil and rock masses.

[0003] The dual-hole drilling equipment for geotechnical engineering disclosed in Chinese Utility Model Patent Application Publication CN221144323U, although solving the problem of not being able to adjust the distance between the two drill bits, still has the following disadvantages: First, when drilling in relatively narrow places, the dual-hole drilling equipment for geotechnical engineering cannot be disassembled, making it impossible to drill in confined spaces and to use a single drill bit according to the working conditions; Second, when the drill bit is drilling, the friction between the drill bit and the soil generates a large amount of dust, debris, and mud, which is thrown towards the workers on both sides, causing them to be covered in mud. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a dual-hole drilling device for geotechnical engineering, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: A dual-hole drilling device for geotechnical engineering includes a first body and a second body. The first body is located on the left side of the second body. Support legs are provided on both sides of the bottom of the first and second bodies. A first magnetic stone and a second magnetic stone are fixedly connected to the right side wall of the right support leg of the first body and the left side wall of the left support leg of the second body, respectively. The first magnetic stone and the second magnetic stone attract each other. A first fixed seat and a second fixed seat are fixedly connected to the top right side of the first body and the top left side of the second body, respectively. A third magnetic stone and a fourth magnetic stone are fixedly connected to the right side wall of the first fixed seat and the left side wall of the second fixed seat, respectively. The third magnetic stone and the fourth magnetic stone attract each other. Each of the third magnetic stone, the fourth magnetic stone, and the second fixed seat has a through hole. A first fixed rod is fixedly connected to the right side wall of the first fixed seat, and the first fixed rod is adapted to the through hole.

[0008] Optionally, the contact surfaces of the first and second magnetic stones are provided with anti-displacement uneven structures. The top of the first fixing rod and the top of the second fixing seat are both provided with locking holes. The inner wall of the locking holes is slidably connected to the second fixing rod. The left and right inner side walls of the first body and the left and right inner side walls of the second body are rotatably connected with threaded rods. The surface of the first fixing rod is provided with a friction-reducing coating. The magnetic strength of the magnetic stone assembly is ≥200N / cm² and the axial length of the first fixing rod is 2-3mm greater than the thickness of the magnetic stone assembly.

[0009] Optionally, the threaded rod is provided with connecting rods on both the front and rear sides. The connecting rods are fixedly connected to the first body and the second body respectively. The left side of the first body and the right side of the second body are provided with rotating handles. The rotating handles are fixedly connected to the threaded rod. The outer end of the threaded rod is threadedly connected to a movable seat. The front and rear sides of the movable seat are slidably connected to the connecting rods.

[0010] Optionally, a drill rod is rotatably connected to the bottom of the movable base, and a motor is fixedly installed on the top of the movable base. The motor is connected to the drill rod in a transmission manner. A connecting groove is opened on the top of the support leg. Multiple sections of electric telescopic rods are fixedly connected to the inner bottom wall of the connecting groove. The top of the telescopic ends of the multiple sections of electric telescopic rods are fixedly connected to the bottom left and right sides of the first body and the bottom left and right sides of the second body, respectively. The bottom left and right sides of the first body and the bottom left and right sides of the second body are slidably connected to the inner wall of the connecting groove. The maximum load of the multiple sections of electric telescopic rods is ≥ 2 times the weight of the body.

[0011] Optionally, fixing plates are fixedly connected to both the front and rear sides of the first and second fixing seats. The width of the fixing plates is the same as that of the first and second bodies. A first sliding groove is formed on the outer wall of the fixing plate. A first baffle is slidably connected to the inner wall of the first sliding groove. A second sliding groove is formed on the outer wall of the first baffle. A second baffle is slidably connected to the inner wall of the second sliding groove. There are two of each of the first and second sliding grooves, which are symmetrically distributed on the left and right sides of the fixing plate and the first baffle. Both the first and second sliding grooves are T-shaped.

[0012] Optionally, the fixed plate, the first baffle, and the second baffle are all the same size, and the bottom of the fixed plate is located above the top of the first body. A handle is fixedly connected to the outer end of the second baffle. A stop bar is rotatably connected to the top of the first body. The number of stop bars is the same as that of the fixed plates. The outer end of the stop bar is located at the outer end of the second baffle. The top of the stop bar is level with the bottom of the fixed plate.

[0013] (III) Beneficial Effects

[0014] This utility model provides a dual-hole drilling device for geotechnical engineering, which has the following advantages:

[0015] 1. This dual-hole drilling equipment for geotechnical engineering, through the setting of the first fixing rod, enables the right side of the first machine body and the left side of the second machine body to be aligned. Through the cooperation of the first, second, third, and fourth magnetic stones with the second fixing rod, the first and second machine bodies can be fixedly connected during use, thus achieving the function of quickly separating or assembling the first and second machine bodies, achieving the purpose of using it according to the working conditions and the size of the construction site.

[0016] 2. This dual-hole drilling equipment for geotechnical engineering, through the setting of the baffle, enables the first and second baffles to be retracted when drilling is not required. Through the cooperation of the first and second baffles, during use, the first and second baffles can be slid downwards, thereby preventing soil from splashing during drilling and achieving the purpose of preventing workers from being covered in soil. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of this utility model.

[0022] In the diagram: 1. First body; 2. Second body; 3. Support leg; 4. First magnetic stone; 5. Second magnetic stone; 6. First fixed seat; 7. Second fixed seat; 8. Third magnetic stone; 9. Fourth magnetic stone; 10. First fixed rod; 11. Second fixed rod; 12. Threaded rod; 13. Moving seat; 14. Drill rod; 15. Rotating handle; 16. Connecting groove; 17. Multi-section electric telescopic rod; 18. Fixed plate; 19. First slide groove; 20. First baffle; 21. Second slide groove; 22. Second baffle; 23. Handle; 24. Stop bar; 25. Motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example

[0025] Please see Figures 1 to 5 This utility model provides a technical solution: a dual-hole drilling device for geotechnical engineering, comprising a first body 1 and a second body 2. The first body 1 is located to the left of the second body 2. Support legs 3 are provided at the bottom of both sides of the first body 1 and the second body 2. A first magnetic stone 4 and a second magnetic stone 5 are fixedly connected to the right side wall of the right support leg 3 of the first body 1 and the left side wall of the left support leg 3 of the second body 2, respectively. The first magnetic stone 4 and the second magnetic stone 5 attract each other. A first fixing seat 6 and a second fixing seat 7 are fixedly connected to the top right side of the first body 1 and the top left side of the second body 2, respectively. A third magnetic stone 8 and a fourth magnetic stone 9 are fixedly connected to the right side wall of the first fixing seat 6 and the left side wall of the second fixing seat 7, respectively. The third magnetic stone 8 and the fourth magnetic stone 9 attract each other. Through holes are provided for the third magnetic stone 8, the fourth magnetic stone 9 and the second fixing seat 7. A first fixing rod 10 is fixedly connected to the right side wall of the first fixing seat 6. The first fixing rod 10 is adapted to the through hole.

[0026] Specifically, by using four magnetic stones in pairs, the upper right and lower right sides of the first body 1 can be fixed to the upper left and lower left sides of the second body 2, respectively. Through the setting of the first fixing rod 10 and the through hole, the first body 1 and the second body 2 can be aligned left and right. All four magnetic stones are neodymium iron boron N52 model.

[0027] Please refer to Figure 3 to Figure 4 The contact surfaces of the first magnetic stone 4 and the second magnetic stone 5 are provided with anti-displacement concave-convex structures. The top of the first fixing rod 10 and the top of the second fixing seat 7 are both provided with locking holes. The inner wall of the locking hole is slidably connected to the second fixing rod 11. The left and right inner side walls of the first body 1 and the left and right inner side walls of the second body 2 are rotatably connected with threaded rods 12. The surface of the first fixing rod 10 is provided with a friction-reducing coating. The magnetic strength of the magnetic stone assembly is ≥200N / cm² and the axial length of the first fixing rod 10 is 2-3mm greater than the thickness of the magnetic stone assembly.

[0028] Specifically, the combination of the locking hole and the second fixing rod 11 can further secure the first body 1 and the second body 2 together.

[0029] Please refer to Figure 2 and Figure 4 The threaded rod 12 is provided with connecting rods on both the front and rear sides. The connecting rods are fixedly connected to the first body 1 and the second body 2 respectively. The left side of the first body 1 and the right side of the second body 2 are provided with rotating handles 15. The rotating handles 15 are fixedly connected to the threaded rod 12. The outer end of the threaded rod 12 is threadedly connected to a movable seat 13. The front and rear sides of the movable seat 13 are slidably connected to the connecting rods.

[0030] Specifically, by rotating the handle 15 and fixing it to the threaded rod 12, electricity can be saved, and the left and right movement of the drill rod 14 can be adjusted manually for greater precision.

[0031] Please refer to 4. A drill rod 14 is rotatably connected to the bottom of the movable base 13. A motor 25 is fixedly installed on the top of the movable base 13. The motor 25 is connected to the drill rod 14 in a transmission manner. A connecting groove 16 is opened on the top of the support leg 3. Multiple electric telescopic rods 17 are fixedly connected to the inner bottom wall of the connecting groove 16. The top of the telescopic ends of the multiple electric telescopic rods 17 are fixedly connected to the bottom left and right sides of the first body 1 and the bottom left and right sides of the second body 2, respectively. The bottom left and right sides of the first body 1 and the bottom left and right sides of the second body 2 are slidably connected to the inner wall of the connecting groove 16. The maximum load of the multiple electric telescopic rods 17 is ≥ 2 times the weight of the body.

[0032] Specifically, the multi-section electric telescopic rod 17 allows the drill rod 14 to move up and down quickly and easily. The motor 25 has a power of ≥1.5kW, and the drill rod 14 has a speed range of 200-800rpm.

[0033] Please refer to Figure 1 to Figure 5 Fixing plates 18 are fixedly connected to the front and rear sides of the first fixing seat 6 and the second fixing seat 7. The width of the fixing plates 18 is the same as that of the first body 1 and the second body 2. A first sliding groove 19 is provided on the outer side wall of the fixing plate 18. A first baffle 20 is slidably connected to the inner wall of the first sliding groove 19. A second sliding groove 21 is provided on the outer side wall of the first baffle 20. A second baffle 22 is slidably connected to the inner wall of the second sliding groove 21. There are two of each of the first sliding groove 19 and the second sliding groove 21, and they are symmetrically distributed on the left and right sides of the fixing plate 18 and the first baffle 20. Both the first sliding groove 19 and the second sliding groove 21 are T-shaped.

[0034] Specifically, by setting up the first baffle 20, the second baffle 22 and the second chute 21, when the drill rod 14 gradually moves downward, after the bottom of the second baffle 22 contacts the ground, the first baffle 20 moves downward along the second chute 21 to continuously block the soil.

[0035] Please refer to Figure 1 to Figure 5 The fixed plate 18, the first baffle 20 and the second baffle 22 are all the same size, and the bottom of the fixed plate 18 is located above the top of the first body 1. The outer end of the second baffle 22 is fixedly connected to a handle 23. The top of the first body 1 is rotatably connected to a stop bar 24. The number of stop bars 24 is the same as that of the fixed plate 18. The outer end of the stop bar 24 is located at the outer end of the second baffle 22. The top of the stop bar 24 is horizontally aligned with the bottom of the fixed plate 18.

[0036] Specifically, by setting the top of the stop bar 24 to be level with the bottom of the fixing plate 18, the stop bar 24 can be rotated 90 degrees forward and backward when the drill rod 14 is not in use, thereby fixing the first baffle 20 and the second baffle 22 above the first body 1 and the second body 2.

[0037] In use, when drilling is required in a narrow space, first pull the second fixing rod 11 upwards, then pull the second body 2 to the right along the direction of the first fixing rod 10, so that the first magnetic stone 4 separates from the second magnetic stone 5, and the third magnetic stone 8 separates from the fourth magnetic stone 9, thereby separating the first body 1 from the second body 2. Then, move the second body 2 alone into the narrow space for drilling. When drilling, first manually rotate the rotating handle 15 on the outside of the first body 1 and the second body 2, so that the threaded rod 12 drives the moving seat 13 and the drill rod 14 to move. Move the lever 24 to the top of the hole to be drilled, then rotate the lever 24 inward by 90 degrees so that the lever 24 is completely on top of the first body 1 and the second body 2. At this time, the first baffle 20 and the second baffle 22 slide downward, and the multi-section electric telescopic rod 17 retracts, driving the drill rod 14 to move downward. At the same time, the motor 25 is started, so that the drill rod 14 begins to rotate. When the first body 1 and the second body 2 move downward, the bottom of the second baffle 22 contacts the ground, which causes the first baffle 20 to move downward, thereby preventing soil from splashing when the drill rod 14 is drilling.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dual-hole drilling device for geotechnical engineering, comprising a first body (1) and a second body (2), characterized in that: The first body (1) is located to the left of the second body (2). Both the first body (1) and the second body (2) have support legs (3) at their bottom sides. The right side wall of the right support leg (3) of the first body (1) and the left side wall of the left support leg (3) of the second body (2) are respectively fixedly connected to a first magnetic stone (4) and a second magnetic stone (5). The first magnetic stone (4) and the second magnetic stone (5) attract each other. The top right side of the first body (1) and the top left side of the second body (2) are respectively fixedly connected to... There is a first fixed seat (6) and a second fixed seat (7). The right side wall of the first fixed seat (6) and the left side wall of the second fixed seat (7) are respectively fixedly connected to a third magnetic stone (8) and a fourth magnetic stone (9). The third magnetic stone (8) and the fourth magnetic stone (9) attract each other. The third magnetic stone (8), the fourth magnetic stone (9) and the second fixed seat (7) are all connected through through holes. The right side wall of the first fixed seat (6) is fixedly connected to a first fixed rod (10). The first fixed rod (10) is adapted to the through hole.

2. The dual-hole drilling equipment for geotechnical engineering according to claim 1, characterized in that: The contact surfaces of the first magnetic stone (4) and the second magnetic stone (5) are provided with anti-displacement concave-convex structures. The top of the first fixing rod (10) and the top of the second fixing seat (7) are both provided with locking holes. The inner wall of the locking hole is slidably connected to the second fixing rod (11). The left and right inner walls of the first body (1) and the left and right inner walls of the second body (2) are rotatably connected with threaded rods (12). The surface of the first fixing rod (10) is provided with a friction-reducing coating.

3. The dual-hole drilling equipment for geotechnical engineering according to claim 2, characterized in that: The threaded rod (12) is provided with connecting rods on both the front and rear sides. The connecting rods are fixedly connected to the first body (1) and the second body (2) respectively. The left side of the first body (1) and the right side of the second body (2) are provided with rotating handles (15). The rotating handles (15) are fixedly connected to the threaded rod (12). The outer end of the threaded rod (12) is threadedly connected to a movable seat (13). The front and rear sides of the movable seat (13) are slidably connected to the connecting rods.

4. A dual-hole drilling device for geotechnical engineering according to claim 3, characterized in that: The bottom of the movable seat (13) is rotatably connected to a drill rod (14), and the top of the movable seat (13) is fixedly installed with a motor (25). The motor (25) is connected to the drill rod (14) in a transmission connection. The top of the support leg (3) is provided with a connecting groove (16). The inner bottom wall of the connecting groove (16) is fixedly connected with multiple electric telescopic rods (17). The top of the telescopic ends of the multiple electric telescopic rods (17) are fixedly connected to the bottom left and right sides of the first body (1) and the bottom left and right sides of the second body (2), respectively. The bottom left and right sides of the first body (1) and the bottom left and right sides of the second body (2) are slidably connected to the inner wall of the connecting groove (16). The maximum load of the multiple electric telescopic rods (17) is ≥ 2 times the weight of the body.

5. A dual-hole drilling device for geotechnical engineering according to claim 4, characterized in that: Fixing plates (18) are fixedly connected to the front and rear sides of the first fixing seat (6) and the second fixing seat (7). The width of the fixing plate (18) is the same as that of the first body (1) and the second body (2). A first sliding groove (19) is provided on the outer side wall of the fixing plate (18). A first baffle (20) is slidably connected to the inner wall of the first sliding groove (19). A second sliding groove (21) is provided on the outer side wall of the first baffle (20). A second baffle (22) is slidably connected to the inner wall of the second sliding groove (21). There are two of each of the first sliding groove (19) and the second sliding groove (21), and they are symmetrically distributed on the left and right sides of the fixing plate (18) and the first baffle (20). Both the first sliding groove (19) and the second sliding groove (21) are T-shaped.

6. A dual-hole drilling device for geotechnical engineering according to claim 5, characterized in that: The fixed plate (18), the first baffle (20) and the second baffle (22) are all the same size and the bottom of the fixed plate (18) is located above the top of the first body (1). The outer end of the second baffle (22) is fixedly connected to a handle (23). The top of the first body (1) is rotatably connected to a stop bar (24). The number of stop bars (24) is the same as that of the fixed plate (18). The outer end of the stop bar (24) is located at the outer end of the second baffle (22). The top of the stop bar (24) is horizontally aligned with the bottom of the fixed plate (18).

Citation Information

Patent Citations

  • Double-hole drilling equipment for geotechnical engineering

    CN221144323U