Positioning and supporting device for advanced geological exploration drilling of a diaphragm wall

Abstract

This utility model provides a positioning support device for drilling boreholes for advanced geological exploration of a central partition wall. It includes a support assembly with a support plate hinged to it. Two guide rods are horizontally and symmetrically arranged on the support plate. A sliding seat is slidably mounted on each guide rod, and a drilling drive device is fixedly mounted on the sliding seat. A drill rod connecting sleeve is connected to the output end of the drilling drive device. The free end of the drill rod connecting sleeve moves through the sliding seat, and a drill rod is connected to the end of the drill rod connecting sleeve. A drive assembly is provided on the support plate to push the sliding seat to slide on the guide rods. This positioning support device has a reasonable structural design, is simple to operate, and can effectively position and support the drill rod, solving problems such as low drilling efficiency, poor drilling quality, and easy damage to the drill bit.

Description

Technical Field

[0001] This utility model belongs to the field of positioning support technology, specifically relating to a positioning support device for advanced geological exploration drilling of a central partition wall. Background Technology

[0002] The water-rich section of the tunnel contains numerous unfavorable geological formations such as karst, fractured zones, and fissure zones. Pre-drilling and grouting revealed connectivity between the left and right tunnels in this section, leading to mutual interference of moving water during grouting and resulting in grout leakage. To reduce mutual interference between the left and right tunnels and minimize grout leakage during construction, measures must be taken to separate the moving water in the left and right tunnels and reinforce the central partition wall with grout. Prior to this, multiple pre-drilling exploration boreholes are required for the central partition wall. Currently, drilling is often performed manually using a hand-held drilling machine erected on a tunnel support frame. Because the drill rod is long and suspended, the drill bit experiences uneven resistance during drilling. The long overhang of the drill rod creates a flexible structure, ultimately leading to hole deviation, reducing the quality of continuous drilling, and causing drill bit wear and drill rod bending.

[0003] In view of this, in order to solve the above-mentioned technical problems, this utility model proposes a positioning and support device that can effectively position and support the drill rod, solving problems such as low drilling efficiency, poor drilling quality, and easy damage to the drill bit. The positioning and support device has a reasonable structural design and is easy to operate. Utility Model Content

[0004] This utility model provides a positioning and support device for drilling boreholes in advanced geological exploration of central partition walls. The device features a reasonable structural design and simple operation, effectively positioning and supporting the drill rod, thus solving problems such as low drilling efficiency, poor drilling quality, and easy damage to the drill bit. The specific solution is as follows:

[0005] A positioning support device for advanced geological exploration drilling of a central partition wall includes a support assembly, a support plate hinged to the support assembly, two guide slide rods horizontally and symmetrically arranged on the support plate, a sliding seat slidably arranged on the two guide slide rods, a drilling drive device fixed on the sliding seat, a drill rod connecting sleeve connected to the output end of the drilling drive device, the free end of the drill rod connecting sleeve moving through the sliding seat, a drill rod connected to the end of the drill rod connecting sleeve, and a drive assembly that can push the sliding seat to slide on the guide slide rods on the support plate.

[0006] Furthermore, the support assembly includes a base, a support column, two mounting ears, and a hydraulic cylinder. The support column is vertically fixed on one side of the base. The upper end of the support column is hinged to the support plate via the mounting ears. The hydraulic cylinder is hinged to the upper surface of the base on the side away from the support column via another mounting ear. The output end of the hydraulic cylinder is hinged to the lower surface of the support plate via a connecting ear.

[0007] Furthermore, the support plate has a U-shaped structure, the guide slide rod is fixed between the two side walls of the support plate, the upper end of the support column is hinged to one side of the support plate through the mounting lug, and a through hole is provided on the other side wall of the support plate for the drill rod to pass through.

[0008] Furthermore, a sliding sleeve is horizontally provided on the side wall of the U-shaped support plate away from the support column, through which the drill rod can pass.

[0009] Furthermore, guide rods are horizontally provided on the sidewalls of the support plates on both sides of the sliding sleeve, facing the sliding seat side, and a guide sleeve for the drill rod to pass through is fixed between the ends of the two guide rods.

[0010] Furthermore, the sliding seat includes at least two mounting plates that can slide on the guide slide rod, and adjacent mounting plates are fixedly connected by a connecting rod. The drill rod connecting sleeve movably passes through the mounting plate and is connected to the drill rod.

[0011] Furthermore, the base is detachably connected to the support platform by bolts.

[0012] The beneficial effects of this utility model are:

[0013] This utility model discloses a positioning support device for drilling boreholes for advanced geological exploration of a central partition wall. By setting up a support component, a support plate, a drive component, and a sliding seat, the drilling drive device and drill rod can be positioned, supported, and fixed during the drilling process, avoiding problems such as drill bit deviation or drill bit damage, improving drilling efficiency and drilling quality. At the same time, the setting of the support component can also adjust the drilling angle, and the setting of the drive component can free up manual operation, making it safe and reliable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a partial schematic diagram of the present invention.

[0016] Explanation of reference numerals in the attached drawings: 1. Support platform; 2. Support plate; 3. Guide slide rod; 4. Sliding seat; 5. Drilling drive device; 6. Drill rod connecting sleeve; 7. Drill rod; 8. Drive assembly; 9. Base; 10. Support column; 11. Hydraulic cylinder; 12. Mounting lug; 13. Sliding sleeve; 14. Guide rod; 15. Guide sleeve; 16. Bolt. Detailed Implementation

[0017] 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.

[0018] See Figure 1-2A positioning support device for drilling boreholes for advanced geological exploration of a central partition wall includes a support assembly, a support plate 2 hinged to the support assembly, two guide slide rods 3 horizontally and symmetrically arranged on the support plate 2, a sliding seat 4 slidably arranged on the two guide slide rods 3, a drilling drive device 5 fixedly arranged on the sliding seat 4, a drill rod connecting sleeve 6 connected to the output end of the drilling drive device 5, the free end of the drill rod connecting sleeve 6 moving through the sliding seat 4, and a drill rod 7 connected to the end of the drill rod connecting sleeve 6, wherein the drill rod connecting sleeve 6 passes through the sliding seat 4 and is connected to the drill rod 7, and a drive assembly 8 is provided on the support plate 2 to push the sliding seat 4 to slide on the guide slide rods 3, wherein the drive assembly 8 can be a hydraulic cylinder.

[0019] The preferred support assembly includes a base 9, a support column 10, two mounting ears, and a hydraulic cylinder 11. The base 9 is detachably connected to the support platform 1 by bolts 16, and can be directly fixed to the support frame inside the tunnel by bolts 16 during actual use. The support column 10 is vertically fixed to one side of the base 9, and the upper end of the support column 10 is hinged to the support plate 2 by mounting ears 12. The mounting ears 12 are located on one side of the support plate 2, and a pin is horizontally connected inside the mounting ears 12. The top of the support column 10 has a through hole suitable for the rotation of the pin. The hydraulic cylinder 11 is hinged to the upper surface of the base 9 on the side away from the support column 10 by another mounting ear 12. The output end of the hydraulic cylinder 11 is hinged to the lower surface of the support plate 2 by a connecting ear. In use, the hydraulic cylinder 11 is activated, and its extension end can drive one end of the support plate 2 to move up and down, thereby driving the drill rod 7 to move up and down to adapt to drilling work at multiple angles.

[0020] The preferred support plate 2 has a U-shaped structure. The guide slide rod 3 is fixed between the two side walls of the support plate 2. The upper end of the support column 10 is hinged to one side of the support plate 2 through the mounting lug 12. A through hole is provided on the other side wall of the support plate 2 for the drill rod 7 to pass through. The drill rod 7 can be further stabilized by passing through the sliding seat 4 and the through hole on one side wall of the U-shaped support plate 2, thereby ensuring the stability of the drill rod 7 during the drilling process and avoiding positional deviation.

[0021] The preferred U-shaped support plate 2 has a horizontally provided sliding sleeve 13 on the side wall away from the support column 10, through which the drill rod 7 can pass. The sliding sleeve 13 can further ensure the stability of the drill rod 7.

[0022] The preferred sliding sleeve 13 has horizontally arranged guide rods 14 on the sidewalls of the support plates 2 facing the sliding seat 4. The ends of the two guide rods 14 are fixedly connected to a guide sleeve 15 through which the drill rod 7 can pass. The guide sleeve 15 can prevent the drill rod 7 from vibrating during the initial drilling due to its length, thus ensuring the stability of the drill rod 7 during drilling.

[0023] The preferred sliding seat 4 includes at least two mounting plates that can slide on the guide slide rod 3. The two adjacent mounting plates are fixedly connected by a connecting rod. The drill rod 7 connecting sleeve 6 movably passes through the mounting plate and is connected to the drill rod 7.

[0024] The preferred base 9 is detachably connected to the support platform 1 by bolts 16.

[0025] The working principle of this utility model:

[0026] When drilling near the ground, the support platform 1 of this device can be used directly as the main support. When drilling high in the tunnel wall, the support frame located in the tunnel can be used as the support. The base 9 is fixed to the support frame with bolts 16. In actual use, the base 1 can also be installed on the bedrock of the tunnel face with bolts. It can also be installed on equipment such as multi-arm trolleys or excavators to flexibly adjust the position of the support components (depending on the specific situation).

[0027] In practical use, firstly, adjust the angle of the drill rod 7 and drill bit by adjusting the position of the drill hole. During adjustment, control the start of the hydraulic cylinder 11. The hydraulic cylinder 11 drives the U-shaped support plate 2 to move up and down until it is aligned with the pre-drilled hole position. Then, control the start of the drilling drive device 5 to drive the drill rod 7 to rotate and drill. During the drilling process, control the drive component (hydraulic cylinder) to push the sliding seat 4 forward on the two guide slide rods 3. During the drilling process, since one part of the drill rod 7 is located on the sliding seat 4 and the other part is located on the guide sleeve 15 and the side wall of the U-shaped support plate 2, the drill rod 7 can always maintain stability during the drilling process, thereby avoiding problems such as drill bit deviation or drill bit damage, and improving drilling efficiency and drilling quality.

[0028] It is worth mentioning that the support platform in this device is only an installation diagram in one embodiment.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A positioning support device for advanced geological exploration boreholes in a central partition wall, characterized in that: The system includes a support assembly, on which a support plate (2) is hinged. Two guide slide rods (3) are horizontally symmetrically arranged on the support plate (2). Sliding seats (4) are slidably arranged on the two guide slide rods (3). A drilling drive device (5) is fixed on the sliding seat (4). A drill rod connecting sleeve (6) is connected to the output end of the drilling drive device (5). The free end of the drill rod connecting sleeve (6) moves through the sliding seat (4). A drill rod (7) is connected to the end of the drill rod connecting sleeve (6). A drive assembly (8) is provided on the support plate (2) to push the sliding seat (4) to slide on the guide slide rods (3).

2. The positioning support device for advanced geological exploration boreholes in a central partition wall according to claim 1, characterized in that: The support assembly includes a base (9), a support column (10), two mounting ears (12) and a hydraulic cylinder (11). The upper end of the support column (10) is hinged to the support plate (2) through the mounting ears (12). The hydraulic cylinder (11) is hinged to the upper surface of the base (9) on the side away from the support column (10) through another mounting ear (12). The output end of the hydraulic cylinder (11) is hinged to the lower surface of the support plate (2) through a connecting ear.

3. A positioning support device for advanced geological exploration boreholes in a central partition wall according to claim 2, characterized in that: The support plate (2) has a U-shaped structure. The guide slide rod (3) is fixed between the two side walls of the support plate (2). The upper end of the support column (10) is hinged to one side of the support plate (2) through the mounting ear (12). A through hole is provided on the other side wall of the U-shaped support plate (2) for the drill rod (7) to pass through.

4. A positioning support device for advanced geological exploration boreholes in a central partition wall according to claim 3, characterized in that: The support plate (2) has a horizontal sliding sleeve (13) on the side wall away from the support column (10) through which the drill rod (7) can pass.

5. A positioning support device for advanced geological exploration boreholes in a central partition wall according to claim 4, characterized in that: The side walls of the support plates (2) on both sides of the sliding sleeve (13) are horizontally provided with guide rods (14) facing the sliding seat (4), and the ends of the two guide rods (14) are fixedly connected with guide sleeves (15) through which the drill rod (7) can pass.

6. A positioning support device for advanced geological exploration boreholes in a central partition wall according to claim 1, characterized in that: The sliding seat (4) includes at least two mounting plates that can slide on the guide slide rod (3). The two adjacent mounting plates are fixedly connected by a connecting rod. The drill rod connecting sleeve (6) movably passes through the mounting plate and is connected to the drill rod (7).

7. A positioning support device for advanced geological exploration boreholes in a central partition wall according to claim 2, characterized in that: The base (9) is detachably connected to the support platform (1) by bolts (16).

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