A drilling apparatus suitable for use in a tunnel

Abstract

The utility model relates to tunnel construction equipment technical field, specifically, relate to a kind of drilling equipment suitable for tunnel. Adopt the "V" shape support structure of first fixed support pole and second fixed support pole, cooperate the fastening of connecting piece in bottom and realize with tunnel wall, acute angle included angle design adapts tunnel wall camber, effectively promote the fixed stability of equipment, avoid the equipment displacement caused by vibration in the process of drilling, provide stable foundation for accurate drilling. Angle adjustment is flexible: through the cooperation design of angle adjusting mechanism and waist-shaped hole, the multi-angle adjustment of guide rail relative to first fixed piece is realized, can be flexibly adjusted according to the drilling needs of different positions, different angles in tunnel construction, break the limitation of traditional equipment angle adjustment, improve the versatility of equipment.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, specifically to a drilling device suitable for tunnels. Background Technology

[0002] Drilling is a crucial step in tunnel construction, widely used in anchor bolt installation, pipeline laying, and blasting hole preparation. Currently, tunnel drilling is mostly performed manually using hand-held drilling tools or with simple supports. However, manual hand-held drilling has significant drawbacks: firstly, tunnel walls are often curved and the construction environment is complex, making it difficult for workers to ensure precise drilling angles, easily leading to deviations and affecting subsequent construction quality; secondly, prolonged hand-held drilling is extremely labor-intensive, inefficient, and poses safety hazards due to tool vibration. While existing simple supports can reduce labor intensity to some extent, they generally suffer from poor stability, are ill-suited to the curved structure of tunnel walls, and cannot provide reliable fixation. Furthermore, these supports have insufficient angle adjustment capabilities, typically only allowing adjustment in a single direction, failing to meet the drilling needs at different locations and angles during tunnel construction, thus limiting their effectiveness. Therefore, developing a stable, flexible, and adaptable drilling device suitable for tunnel construction environments has become a pressing technical challenge in the tunnel construction field. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a drilling device suitable for tunnels. By optimizing the device's structural design, it achieves a combination of stable fixation and flexible angle adjustment, thereby improving the accuracy and efficiency of drilling operations.

[0004] To achieve the above objectives, this utility model provides a drilling device suitable for tunnels, comprising: The first fixing member includes a first fixing rod and a second fixing rod, one end of the first fixing rod and the second fixing rod are connected, and the other end of the first fixing rod and the second fixing rod are fixed to the surface of the tunnel wall; An adjustment unit is provided, comprising an angle adjustment mechanism and a guide rail. A drilling unit is connected to the bottom of the guide rail, and the guide rail is connected to the back of the angle adjustment mechanism. A first fixing member is disposed on the surface of the angle adjustment mechanism, and the angle of the guide rail relative to the first fixing member is adjustable.

[0005] Preferably, the first fixed support rod and the second fixed support rod have the same structure, and both the first fixed support rod and the second fixed support rod are provided with a connector at their bottom. The connector is used to fix the fixed support rod and the second fixed support rod to the surface of the tunnel wall.

[0006] Preferably, the angle between the first fixed support rod and the second fixed support rod is an acute angle.

[0007] Preferably, the guide rail and the angle adjustment mechanism are connected by an oblong hole, which is used to adjust the angle of the guide rail relative to the angle adjustment mechanism.

[0008] Preferably, the drilling unit includes an electric hammer holder, which is disposed on the bottom surface of the guide rail, and an electric hammer is connected to the electric hammer holder.

[0009] Preferably, the guide rail is movable relative to the angle adjustment mechanism along its length, and a limiting block is provided at the bottom of the guide rail to limit the movement distance of the guide rail.

[0010] Compared with the prior art, the technical solution proposed in this application has the following beneficial effects: the “V”-shaped support structure composed of the first fixed support rod and the second fixed support rod, together with the bottom connector, achieves a firm connection with the tunnel wall. The acute angle design adapts to the curved surface of the tunnel wall, effectively improving the fixed stability of the equipment and avoiding equipment displacement caused by vibration during drilling, thus providing a stable foundation for precise drilling.

[0011] Flexible angle adjustment: Through the design of the angle adjustment mechanism and the waist-shaped hole, the guide rail can be adjusted at multiple angles relative to the first fixing part. It can be flexibly adjusted according to the drilling needs of different positions and angles in tunnel construction, breaking the limitations of traditional equipment angle adjustment and improving the versatility of the equipment.

[0012] High drilling accuracy: On the one hand, the stable fixing structure reduces shaking deviation during the drilling process; on the other hand, the limiting block at the bottom of the guide rail can accurately control the drilling depth, while the electric hammer fixing frame ensures the stable operation of the electric hammer, which improves the accuracy of drilling operations in many ways and ensures the quality of subsequent construction.

[0013] Improved work efficiency: The equipment is easy to install and fix, and angle adjustment and depth control do not require complicated procedures, which reduces the intensity of manual labor and avoids rework due to deviation, thus significantly improving drilling efficiency and making it suitable for large-scale tunnel construction scenarios. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is an overall structural diagram of the drilling equipment of this utility model; In the figure: 1-First fixing component, 11-First fixing support rod, 12-Second fixing support rod, 13-Connector, 2-Adjustment unit, 21-Angle adjustment mechanism, 22-Guide rail, 23-Oval hole, 24-Limiting block, 3-Drilling unit, 31-Electric hammer fixing frame, 32-Electric hammer. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0016] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] See Figure 1 This embodiment provides a drilling device suitable for tunnels, including a first fixing member 1, an adjustment unit 2, and a drilling unit 3.

[0019] The first fixing component 1 includes a first fixing support rod 11 and a second fixing support rod 12. Both the first fixing support rod 11 and the second fixing support rod 12 are made of high-strength aluminum alloy, which is lightweight and has high support strength. They have the same structure, and one end is connected to each other by a hinge to form an acute angle support structure with an included angle of 60°. The other end is welded with a connector 13. The connector 13 adopts an expansion bolt structure. The length of the expansion bolt is selected according to the lining thickness of the tunnel wall to ensure that it can penetrate into the lining to achieve a firm fixation.

[0020] The adjustment unit 2 includes an angle adjustment mechanism 21 and a guide rail 22. The angle adjustment mechanism 21 is made of rectangular steel plate, and its surface is fixed to the connection end of the first fixed support rod 11 and the second fixed support rod 12 by welding. The guide rail 22 is made of I-shaped steel, and its back is connected to the angle adjustment mechanism 21 through a waist-shaped hole 23. The waist-shaped hole 23 is distributed in a 120° arc along the surface of the angle adjustment mechanism 21. Fastening bolts are inserted in the waist-shaped hole 23, and the angle of the guide rail 22 is adjusted and fixed by tightening and loosening the bolts.

[0021] The drilling unit 3 includes an electric hammer mounting bracket 31. A slider adapted to the guide rail 22 is welded to the top of the electric hammer mounting bracket 31. The slider is sleeved on the guide rail 22 and can slide along the length of the guide rail 22. Bolt holes are provided on the side of the electric hammer mounting bracket 31. The electric hammer 32 is fixed to the electric hammer mounting bracket 31 by tightening bolts. The electric hammer 32 is an industrial-grade electric hammer with adjustable impact frequency, which is suitable for tunnel wall materials with different hardness.

[0022] The bottom of the guide rail 22 is fixed with a limit block 24 by bolts. The limit block 24 is made of wear-resistant rubber and its fixed position can be adjusted according to the drilling depth requirements. When the electric hammer fixing frame 31 drives the electric hammer 32 to move to the limit block 24, the limit block 24 blocks it, thereby controlling the drilling depth.

[0023] The working process of this embodiment is as follows: First, the installation point of the first fixing member 1 is determined according to the tunnel drilling location. After drilling at the installation point, the first fixing support rod 11 and the second fixing support rod 12 are fixed to the tunnel wall surface by the expansion bolts of the connector 13 to ensure the stability of the "V" shaped support structure. Then, according to the drilling angle requirements, the fastening bolts in the waist-shaped hole 23 are loosened, and the guide rail 22 is pushed to move along the arc trajectory of the waist-shaped hole 23 to the target angle. The bolts are then tightened to fix the guide rail 22. Next, the fixed position of the limiting block 24 at the bottom of the guide rail 22 is adjusted according to the drilling depth requirements. Finally, the electric hammer 32 is started, and the electric hammer fixing frame 31 is pushed along the guide rail 22 toward the tunnel wall to carry out drilling operations. When the electric hammer fixing frame 31 contacts the limiting block 24, the pushing is stopped, and the drilling is completed.

[0024] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, nor to combinations thereof. Those skilled in the art can make various changes, modifications, or combinations within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A drilling device suitable for tunnels, characterized in that, include: The first fixing member includes a first fixing rod and a second fixing rod, one end of the first fixing rod and the second fixing rod are connected, and the other end of the first fixing rod and the second fixing rod are fixed to the surface of the tunnel wall; An adjustment unit is provided, comprising an angle adjustment mechanism and a guide rail. A drilling unit is connected to the bottom of the guide rail, and the guide rail is connected to the back of the angle adjustment mechanism. A first fixing member is disposed on the surface of the angle adjustment mechanism, and the angle of the guide rail relative to the first fixing member is adjustable.

2. The drilling equipment suitable for tunnels according to claim 1, characterized in that, The first fixed support rod and the second fixed support rod have the same structure. Both the first fixed support rod and the second fixed support rod are provided with a connector at the bottom. The connector is used to fix the fixed support rod and the second fixed support rod to the surface of the tunnel wall.

3. A drilling device suitable for tunnels according to claim 2, characterized in that, The angle between the first fixed support rod and the second fixed support rod is an acute angle.

4. A drilling device suitable for tunnels according to claim 3, characterized in that, The guide rail and the angle adjustment mechanism are connected by an oblong hole, which is used to adjust the angle of the guide rail relative to the angle adjustment mechanism.

5. A drilling device suitable for tunnels according to claim 4, characterized in that, The drilling unit includes an electric hammer holder, which is disposed on the bottom surface of the guide rail, and an electric hammer is connected to the electric hammer holder.

6. A drilling device suitable for tunnels according to claim 5, characterized in that, The guide rail is movable relative to the angle adjustment mechanism along its length, and a limiting block is provided at the bottom of the guide rail to limit the movement distance of the guide rail.

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