Tunneling inclination water hole auxiliary punching device

Abstract

The utility model relates to tunnel and underground engineering support structure and waterproof and drainage construction technical field, concretely is a kind of tunnel tendency drainage hole auxiliary drilling device;Including toothed clamping mechanism, the toothed clamping mechanism includes support frame, and multiple toothed clamping are longitudinally welded in the bottom of support frame;Two slide rails, two the slide rails are respectively welded in the top of support frame column both sides, multiple the toothed clamping are located below the gap between two slide rails;Propelling pipe is used to be inserted between the gap of two toothed clamping;And drilling mechanism;Drilling angle accurate positioning and locking are realized by slide rail and toothed clamping mechanism, and drilling is labor-saving by lever principle using propelling mechanism, and deep hole operation is completed by cooperating water drill with cooling system.The utility model effectively solves the problems of large angle deviation, low positioning efficiency, high labor intensity and many safety hazards existing in traditional manual drilling mode, and has the advantages of simple operation, flexible movement, suitable for tunnel limited space operation and the like.

Description

Technical Field

[0001] This utility model relates to the field of tunnel and underground engineering support structure and drainage construction technology, specifically an auxiliary drilling device for tunnel inclined drainage holes. Background Technology

[0002] In tunnel and underground engineering, in order to effectively drain water behind the lining, reduce groundwater pressure, and ensure structural safety, a systematic drainage system must be installed in the initial support or secondary lining. These drainage holes need to be drilled at a specific upward angle to ensure that their outer openings can penetrate the waterproof membrane and shotcrete layer, communicate with the rock wall, and then connect to the side trench of the cable trough, and from the side trench to the central drainage ditch, ultimately forming a complete drainage channel.

[0003] Currently, drilling these types of drainage holes at construction sites commonly uses manual hand-held drilling rigs. The operation is typically carried out by two workers: one holds the drill steady while the other operates it and applies thrust. To control the drilling angle, workers often rely on personal experience to visually estimate the angle, using a protractor or simple angle gauge for rough measurement and positioning. However, the above-mentioned existing methods have many inherent drawbacks: (1) The accuracy of the drilling angle is difficult to guarantee: visual inspection and simple tools are greatly affected by human factors and are prone to deviation. If the angle is too flat, the outer opening of the drainage hole will be too high and it will not be able to effectively collect the water behind the lining; if the angle is too steep, the inner opening of the drill hole may miss the drainage blind pipe, resulting in the failure of the drainage hole and creating a water damage hazard.

[0004] (2) Deviation in drilling positioning: Due to the lack of effective positioning benchmarks, it is difficult to ensure that the circumferential position and longitudinal spacing of multiple drainage holes meet the design requirements, which affects the uniformity and reliability of the drainage system.

[0005] (3) Low construction efficiency: Each hole needs to be repeatedly measured, marked, and positioned, which is cumbersome, time-consuming and labor-intensive, seriously affecting the construction progress.

[0006] (4) Safety hazards exist: When the hand-held heavy drilling rig is used on an arc surface or at high altitude, the drill bit is prone to "getting stuck" or "reverse torque" when it encounters steel bars or hard rocks, which causes the drilling rig to shake or twist violently, posing a threat to the personal safety of the operator.

[0007] (5) High labor intensity: Construction workers need to support and control the drilling machine throughout the process, especially when drilling deep holes, which consumes a lot of physical strength.

[0008] Therefore, there is an urgent need for an auxiliary device specifically designed for use in tunnels, capable of quickly, accurately, and safely completing the drilling of inclined drainage holes, in order to solve the aforementioned long-standing technical problems. Summary of the Invention

[0009] This invention addresses the technical problems of inaccurate angle control, low positioning efficiency, high labor intensity, and high safety risks associated with manually drilling inclined drainage holes in tunnel construction. It provides an auxiliary drilling device for inclined drainage holes in tunnels. This device enables rapid and precise deep-hole drilling at a specific designed angle to the tunnel excavation outline or lining surface, ensuring accurate construction of the drainage holes and forming an effective drainage system behind the lining. It is a specialized tooling device for tunnel construction.

[0010] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A tunnel drainage hole auxiliary drilling device includes: A toothed clamp mechanism, comprising a support frame, wherein multiple toothed clamps are longitudinally welded along the bottom of the support frame, and the multiple toothed clamps are located on the same straight line; Two slide rails are welded to the top two sides of the support frame, and multiple toothed clips are located below the gap between the two slide rails. The push tube is used to be inserted between the two toothed clips (8); A drilling mechanism, comprising a water drill, wherein a water drill handle and a water drill auxiliary handle are respectively provided on both sides of the outer side wall of the water drill, the water drill is connected to a power cord and a water pipe, the other end of the water pipe is inserted into a water tank, a drill rod is installed at the front end of the water drill, and a drill bit is connected to the end of the drill rod.

[0011] Furthermore, the support frame of the toothed clamp mechanism includes a longitudinal rod, with a horizontal bar welded to each end of the longitudinal rod. The longitudinal rod and the horizontal bar have the same thickness and are both located in the same plane. A vertical column is welded to each end of the horizontal bar. Multiple toothed clamps are welded to the longitudinal rod at equal intervals. Two slide rails are welded to the top of the vertical column located on the same side of the longitudinal axis of symmetry of the longitudinal rod.

[0012] Furthermore, the uprights, crossbars, longitudinal bars, and toothed clips are all made from 50*100 rectangular square tubes. The uprights are 15cm long, the crossbars are 35cm long, the longitudinal bars are 160cm long, and there are 6 toothed clips, each 5cm long. The spacing between adjacent toothed clips is 20cm. The center of the first toothed clip is 15cm from the front end of the longitudinal bar 7, and the center of the last toothed clip is 42.5cm from the end of the longitudinal bar 7.

[0013] Furthermore, the slide rail is cut from a 50*100 rectangular square tube with a length of 210cm.

[0014] Furthermore, the propulsion tube is a 50×100mm rectangular square tube with a length of 150-180cm.

[0015] Furthermore, the water drill model is Qianjin QJ-195B, with a rotation speed of 1500 r / min, a drill rod of φ3cm and a length of 1.5m, and drill bit 16 is a water-ground drill bit of φ75mm and a length of 30cm.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This utility model is constructed from welded steel profiles and standard components, resulting in a robust structure, simple manufacturing, and low cost. It achieves precise positioning and locking of the drilling angle through a sliding rail and toothed clamping mechanism, and utilizes a propulsion mechanism to advance the drill bit with minimal effort using the lever principle. Combined with a water drill equipped with a cooling system, it completes deep hole drilling operations. This device effectively solves the problems of large angle deviations, low positioning efficiency, high labor intensity, and numerous safety hazards inherent in traditional manual drilling methods. It features simple operation, flexible movement, and adaptability to operations in confined tunnel spaces. It can significantly improve the construction accuracy and efficiency of inclined drainage holes, ensure the quality of the drainage system, and is suitable for high-standard construction of drainage holes behind tunnel linings, possessing broad engineering application value.

[0017] This utility model device features an ingenious structural design that allows for rapid fabrication using structural steel, steel plates, and standard components. Through integrated angle positioning, center alignment, and stable support functions, it systematically addresses the pain points of precision, efficiency, safety, and cost in tunnel drainage hole construction. It boasts three core advantages: precision, efficiency, and safety, providing a standardized and tool-based solution for tunnel drainage system construction, demonstrating significant practical value and promising prospects for wider application. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the tunnel's inclined drainage hole.

[0019] Figure 2 This is a schematic diagram illustrating the operation of the new type of auxiliary drilling device for drainage holes.

[0020] Figure 3 This is a schematic diagram of the slide rail.

[0021] Figure 4 This is a schematic diagram of a toothed clamp mechanism.

[0022] Figure 5 This is a schematic diagram of the propulsion tube.

[0023] Figure 6 This is a front view of the slide rail and gear mechanism as a whole.

[0024] Figure 7 This is a left view of the slide rail and gear mechanism as a whole.

[0025] Figure 8 This is a top view of the slide rail and gear mechanism.

[0026] Figure 9This is a schematic diagram of the drilling mechanism.

[0027] The markings in the image are as follows: 1-Drilling segment for tunnel inclined drainage hole, 2-Slide rail, 3-Slide rail welding position one, 4-Slide rail welding position two, 5-Column, 6-Horizontal bar, 7-Vertical bar, 8-Gear clamp, 9-Column welding position one, 10-Column welding position two, 11-Propeller pipe, 12-Water tank, 13-Water pipe, 14-Water drill handle, 15-Water drill, 16-Drill bit, 17-Drill rod, 18-Water drill auxiliary handle, 19-Power cord, 20-φ110PVC drainage pipe already installed during secondary lining construction. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. Example 1

[0029] like Figure 3-9 As shown, a tunnel inclined drainage hole auxiliary drilling device includes: The toothed clamp mechanism includes a support frame, and multiple toothed clamps 8 are longitudinally welded along the bottom of the support frame, with the multiple toothed clamps 8 located on the same straight line; Two slide rails 2 are welded to the top of the support frame column on both sides, together with the toothed clamp mechanism, to realize angle positioning and propulsion control; multiple toothed clamps 8 are located below the gap between the two slide rails 2. The push tube 11 is used to be inserted between the two toothed clips (8); The drilling mechanism includes a water drill 15. The water drill 15 has a water drill handle 14 and a water drill auxiliary handle 18 on both sides of its outer side wall. The water drill 15 is connected to a power cord 19 and a water pipe 13. The other end of the water pipe 13 is inserted into a water tank 12. A drill rod 17 is installed at the front end of the water drill 15. A drill bit 16 is connected to the end of the drill rod 17.

[0030] Furthermore, the support frame of the toothed clamp mechanism includes a longitudinal rod 7, with a horizontal rod 6 welded to each end of the longitudinal rod 7. The longitudinal rod 7 and the horizontal rod 6 have the same thickness and are both located in the same plane. A column 5 perpendicular to the horizontal rod 6 is welded to each end of the horizontal rod 6. Multiple toothed clamps 8 are welded to the longitudinal rod 7 at equal intervals. The slide rail mechanism welding positions 3 and 4 of the slide rail 2 are welded to the toothed clamp mechanism column welding positions 1 and 2 on the top of the two columns 5 located on the same side of the longitudinal axis of symmetry of the longitudinal rod 7, respectively.

[0031] Furthermore, the column 5, crossbar 6, vertical bar 7, and toothed clip 8 are all made from 50*100 rectangular square tubes. The column is 15cm long, the crossbar 6 is 35cm long, the vertical bar 7 is 160cm long, and there are six toothed clips 8, each 5cm long. The spacing between adjacent toothed clips 8 is 20cm. The center of the first toothed clip is 15cm from the front end of the vertical bar 7, and the center of the last toothed clip 8 is 42.5cm from the end of the vertical bar 7.

[0032] Furthermore, the slide rail 2 is made of two 50*100 rectangular square tubes, each 210cm long.

[0033] Furthermore, the propulsion tube 11 is a 50×100mm rectangular tube with a length of 150-180cm.

[0034] Furthermore, the water drill 15 is model Qianjin QJ-195B, with a rotation speed of 1500r / min, the drill rod 17 is a steel rod with a diameter of 3cm and a length of 1.5m, and the drill bit 16 is a water-ground drill bit with a diameter of 75mm and a length of 30cm.

[0035] The manufacturing process of this utility model's auxiliary drilling device for tunnel drainage holes is as follows: Materials were selected based on the auxiliary drilling device for the drainage holes in the tunnel. After selection, the materials were categorized and sufficient materials were chosen. Examples include 10# square tubing, Φ3cm water pipe, Φ3cm drill rod, 30cm long Φ75mm water-cooled drill bit, and Qianjin QJ-195B type 1500r / min water drill, etc.

[0036] (1) Slide rail The slide rail 2 is made by cutting two 210cm long sections from a 50*100 rectangular square tube, grinding off the rough edges, and marking slide rail welding position 1 3 and slide rail welding position 2 4. The distance from the center of slide rail welding position 1 3 to its nearest edge is 25cm, and the distance from the center of slide rail welding position 2 4 to its nearest edge is 15cm.

[0037] (2) Gear clamping mechanism Material and preparation for the toothed clamp mechanism: 50*100 rectangular square tube, cut into: 4 uprights (5), each 15cm long; 2 horizontal bars (6), each 35cm long; 1 vertical bar (7), 160cm long; and 6 toothed clamps (8), each 5cm long. After cutting all the parts, sand the rough edges for later use.

[0038] Tooth clamp mechanism fabrication: Weld one longitudinal rod 7 to the midpoint of the length of the transverse rod 6. Weld one transverse rod 6 to each end of the longitudinal rod 7, with the long sides of all square tubes facing upwards, to form an "I"-shaped component. Weld four columns 5 to the four corners of the "I"-shaped component, one at each corner. The lower end of the long side of the square tube of the tooth clamp mechanism column is perpendicular to the long side of the square tube at the corner of the "I"-shaped component and welded firmly at the end. Then, weld six tooth clamps 8 vertically onto the longitudinal rod 7 with the first center point 15cm from the front end of the longitudinal rod 7 and the subsequent center points of the tooth clamps spaced 20cm apart. The long side of each rectangular square tube tooth clamp is perpendicular to the long side of the square tube of the longitudinal rod of the tooth clamp mechanism.

[0039] (3) Slide rail and gear mechanism assembly The column welding positions 19 and 210 of the column 5 of the gear clamping mechanism are welded to the slide rail welding positions 13 and 24 of the slide rail mechanism respectively in the manner of "center point to center point of square tube", thus completing the assembly welding of the slide rail and the gear clamping mechanism.

[0040] (4) Propulsion pipe The propulsion tube 11 is made by cutting a 150-180cm long piece from a 50*100 rectangular square tube, and then sanding off the rough edges for later use.

[0041] (5) Drilling mechanism Drilling mechanism: A φ3cm water pipe 13 is inserted into a water tank 12 placed slightly higher than the drilling position. After water is introduced into the water pipe, it is connected to the water inlet of the water drill 15 (model: Qianjin QJ-195B type 1500r / min). A φ3cm long 1.5m connecting rod (17) is installed on the water drill. A φ75mm long 30m drill bit 16 is welded to the other end of the connecting rod. The water drill power cord 19 is connected to a nearby electrical box with leakage protection.

[0042] The working process of this utility model's auxiliary drilling device for tunnel drainage holes is as follows: (1) Preparation stage Place the side of the auxiliary drilling device's slide rail welding position 3 closest to its center on the curved surface, and the other end on the plane of the inverted arch filling; adjust the height of the hole position 1 of the tunnel's inclined drainage hole drilling segment and the required drilling angle by appropriately raising or lowering the height of the side of the slide rail welding position 3 closest to its center to complete the inclination angle adjustment; place the drilling mechanism on the slide rail 2 of the "slide rail and toothed clamp mechanism assembly," and the water drill handle 14 and the water drill auxiliary handle 18 can support the drilling mechanism to slide back and forth on the slide rail mechanism 2, such as Figure 2As shown; a water tank 12, placed slightly higher than the drilling position, is inserted into a water pipe 13. Water is introduced into the water pipe and connected to the inlet of the water drill 15. A connecting rod 17 is installed on the water drill, and a drill bit 16 is welded to the other end of the connecting rod. The drill bit 16 is inserted into the φ110 PVC drain pipe 20 that has been installed during the secondary lining construction. The power supply terminal 19 of the water drill is then connected to a nearby electrical box with leakage protection. This completes the preparation work before the construction operation.

[0043] (2) Work phase Step 1: Turn on the switch on the water drill 15 of the drilling mechanism. The operator inserts one end of the push mechanism 11 into the gap between the first and second toothed 8 near the "slide rail welding position 2 slide rail welding position 2 4". Then, the operator holds the push mechanism with both hands and pushes the other end of the push tube 11 to push the drilling mechanism in the drilling direction. Due to the use of the lever principle, the operator's labor intensity can be reduced.

[0044] Step 2: After the water drill of the drilling mechanism is pushed a certain distance, insert the push tube 11 into the gap between the next set of two adjacent toothed cleats 8. When it can no longer be drilled, it means that the drill core inside the drill bit is full. At this time, turn off the water drill and use a hammer to strike the connecting rod to break the drill core. Pull out the push mechanism and pull down the drilling mechanism to remove the broken core.

[0045] Step 3: After removing the broken core, insert the drill bit into the borehole, start the water drill, insert the feed tube 11 between the gaps of the next set of two adjacent toothed chucks 8, push the feed mechanism to complete the second core drilling, and repeat steps 2 and 3 until the drilling is completed and the required embedment depth of 50cm into the rock layer is reached. Figure 1 .

[0046] Move the device and repeat the above operations to complete the drilling of the next hole and all the required curved and inclined holes.

[0047] (3) Complete the work After drilling is complete, turn off the power to the water drill. Remove the propulsion mechanism, drilling mechanism, toothed clamp and slide rail assembly, water pipe, and connecting rod from the water drill in sequence. Tidy up the power cord and water pipe, and turn off the electrical box. Move the device to the next drilling area for use or store it in the tool shed for later use.

[0048] This invention achieves precise positioning and locking of the drilling angle through a sliding rail and toothed clamping mechanism, and uses a propulsion mechanism to advance the drill bit with the lever principle, saving effort. It is combined with a water drill with a cooling system to complete deep hole operations. This device effectively solves the problems of large angle deviation, low positioning efficiency, high labor intensity, and numerous safety hazards inherent in traditional manual drilling methods. It features simple operation, flexible movement, and adaptability to operations in confined tunnel spaces. It can significantly improve the construction accuracy and efficiency of inclined drainage holes, ensure the quality of the drainage system, and is suitable for high-standard construction of drainage holes behind tunnel linings, possessing broad engineering application value.

Claims

1. A device for assisting in drilling drainage holes in tunnels, characterized in that, include: The toothed clamp mechanism includes a support frame, and multiple toothed clamps (8) are welded longitudinally along the bottom of the support frame. The multiple toothed clamps (8) are located on the same straight line. Two slide rails (2) are welded to the top sides of the support frame respectively, and multiple toothed clips (8) are located below the gap between the two slide rails (2); The push tube (11) is used to be inserted between the two toothed clips (8); The drilling mechanism includes a water drill (15). The water drill (15) has a water drill handle (14) and a water drill auxiliary handle (18) on both sides of its outer side wall. The water drill (15) is connected to a power cord (19) and a water pipe (13). The other end of the water pipe (13) is inserted into a water tank (12). A drill rod (17) is installed at the front end of the water drill (15). A drill bit (16) is connected to the end of the drill rod (17).

2. The auxiliary drilling device for tunnel inclined drainage holes according to claim 1, characterized in that, The support frame of the toothed clamp mechanism includes a longitudinal rod (7), and a crossbar (6) is welded to both ends of the longitudinal rod (7). The thickness of the longitudinal rod (7) and the crossbar (6) are the same and they are both located in the same plane. The two ends of the crossbar (6) are welded with columns (5) perpendicular to it. Multiple toothed clamps (8) are welded to the longitudinal rod (7) at equal intervals. Two slide rails (2) are welded to the top of the columns (5) located on the same side of the longitudinal axis of symmetry of the longitudinal rod (7).

3. The auxiliary drilling device for tunnel inclined drainage holes according to claim 2, characterized in that, The column (5), crossbar (6), vertical bar (7) and toothed clip (8) are all made from 50*100 rectangular square tubes. The column (5) is 15cm long, the crossbar (6) is 35cm long, the vertical bar (7) is 160cm long, and there are six toothed clips (8) in total, each 5cm long. The spacing between adjacent toothed clips (8) is 20cm. The center of the first toothed clip (8) is 15cm from the front end of the vertical bar (7), and the center of the last toothed clip (8) is 42.5cm from the end of the vertical bar (7).

4. The auxiliary drilling device for tunnel inclined drainage holes according to claim 1, characterized in that, The slide rail (2) is cut from a 50*100 rectangular square tube with a length of 210cm.

5. The auxiliary drilling device for tunnel inclined drainage holes according to claim 1, characterized in that, The propulsion tube (11) is a 50×100mm rectangular square tube with a length of 150-180cm.

6. The auxiliary drilling device for tunnel inclined drainage holes according to claim 1, characterized in that, The water drill (15) is a Qianjin QJ-195B with a rotation speed of 1500r / min. The drill rod (17) is a steel rod with a diameter of 3cm and a length of 1.5m. The drill bit (16) is a water-grinding drill bit with a diameter of 75mm and a length of 30cm.

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