A hole cleaning device for tunnel construction

Abstract

The application provides a blast hole cleaning equipment for tunnel construction and relates to the technical field of tunnel construction.The blast hole cleaning equipment for tunnel construction comprises a mobile vehicle, a cleaning device arranged on the mobile vehicle, and a lifting driving component.The cleaning device can be lifted and adjusted according to the height of different blast holes and the depth of the blast holes.The lifting driving component drives the cleaning device to move to a suitable position.The cleaning device is inserted into the blast hole by moving the mobile vehicle, the blast hole is blown by the air blower through the cleaning device, the impurities in the blast hole are blown into the cleaning device, the dust removal part humidifies and removes the dust to avoid the generation of dust, the impurities fall into the collection part to complete the collection and are processed in batches, the blast hole can be conveniently cleaned, a large amount of dust generated during the cleaning of the blast hole is effectively avoided, and the health of workers and the tunnel construction are affected.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, specifically to a hole cleaning device for tunnel construction. Background Technology

[0002] During tunnel construction, mechanical excavation should be used whenever possible in areas with weak and fractured surrounding rock, or a combination of weak blasting and mechanical excavation should be employed. Smooth blasting should be used in other surrounding rock sections. The mechanism of smooth blasting is that the shock wave and high-temperature, high-pressure gas generated during explosive detonation act on the borehole wall, causing the surrounding rock to be strongly compressed and fractured. Simultaneously, the resulting compressive stress wave propagates radially, eventually forming an interacting blast funnel. When the blasting parameters are selected appropriately, a continuous, smooth wall will form on the outer contour of the tunnel.

[0003] Before loading explosives into the blast hole, the inside of the blast hole must be cleaned to prevent impurities such as stone chips from entering. Currently, the cleaning method is mostly to use high-pressure air to blow the blast hole clean. However, this method easily generates a lot of dust. Since the ventilation in the tunnel is limited, the dust scattered in the air poses certain safety hazards. Moreover, the stone chips blown up can easily cause injury to workers. Summary of the Invention

[0004] The purpose of this invention is to provide a hole cleaning device for tunnel construction, which aims to solve the problem that most existing cleaning methods use high-pressure air to blow the blast holes clean. However, this method easily generates a large amount of dust. The ventilation inside the tunnel is limited, and the dust is scattered in the air, posing certain safety hazards. Moreover, the blown stone chips fly around randomly, which can easily cause injury to workers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A hole cleaning device for tunnel construction includes a mobile vehicle; a cleaning device mounted on the mobile vehicle, capable of lifting and lowering, and adjustable according to the height of different blast holes to clean the interior of the blast holes; the cleaning device includes a lifting box mounted above the mobile vehicle, capable of lifting and lowering along the height of the mobile vehicle; a semi-circular tube is fixed on the side of the lifting box near the wall, a movable ring is fitted on the surface of the fixed semi-circular tube, a movable semi-circular tube is fixedly connected inside the movable ring, and the end of the movable semi-circular tube away from the movable ring extends into the lifting box; a threaded pipe is rotatably connected to the side of the lifting box near the fixed semi-circular tube, and the fixed semi-circular tube and the movable semi-circular tube... All round tubes are located inside threaded tubes, which are threadedly connected to the movable semi-circular tubes. The diameter of the fixed semi-circular tube is equal to the inner diameter of the borehole, and the diameter of the fixed semi-circular tube is equal to the diameter of the movable semi-circular tube. When the movable ring abuts against the end of the borehole, the movable ring seals the borehole port. The lifting drive component is mounted on the moving vehicle and is used to drive the cleaning device to move up and down. The guide component is mounted on the moving vehicle and serves to install and guide the cleaning device, enabling it to move up and down along the guide component. The dust removal component is mounted on the cleaning device and is used to spray water to reduce dust generated during borehole cleaning. The collection component is mounted on the lifting drive component and is connected to the lifting box to collect impurities cleaned from the borehole.

[0006] A further technical solution of the present invention is that the guide part includes two guide rails fixedly connected to the mobile vehicle, and a slider is slidably connected in both guide rails, and the two ends of the lifting box are rotatably connected to the slider.

[0007] A further technical solution of the present invention is that the lifting drive component includes a rotary drive device installed on a mobile vehicle. The output end of the rotary drive device is fixedly connected to a threaded rod, and a movable plate is threadedly connected to the surface of the threaded rod. Two symmetrical sliding grooves are opened on the mobile vehicle, and the sliding grooves are respectively located on both sides of the movable plate. A sliding plate is slidably connected in the sliding groove, and both ends of the movable plate are respectively connected to the two sliding plates. A connecting rod is hinged on each of the two sliding plates, and the end of the connecting rod away from the sliding plate is hinged to the bottom surface of the lifting box.

[0008] A further technical solution of the present invention is that the rotation drive device is a servo motor.

[0009] A further technical solution of the present invention is that the dust removal unit includes a water tank installed on the lifting box, a water pump is installed in the water tank, the output end of the water pump is fixedly connected to a connecting pipe, and the end of the connecting pipe away from the water pump extends into the interior of the lifting box, and a nozzle is installed at the end of the connecting pipe away from the water pump.

[0010] A further technical solution of the present invention is that the collecting part includes a discharge port opened on the bottom surface of the lifting box, a guide plate is fixedly connected between two connecting rods and the guide plate is located below the discharge port, and a collecting box is rotatably connected between the two connecting rods through a pin and the collecting box is located below the guide plate.

[0011] The beneficial effects of this invention are:

[0012] The cleaning device is adjusted by the depth of the blast hole. The lifting drive unit drives the cleaning device to rise and fall, moving it to the appropriate position. The cleaning device is then inserted into the blast hole by a moving trolley. A blower blows air through the cleaning device into the blast hole, blowing impurities into the cleaning device. The dust removal unit humidifies and reduces the dust, preventing its generation. The impurities fall into the collection unit for collection and centralized processing. This facilitates the cleaning of blast holes and effectively avoids the generation of large amounts of dust during cleaning, which could affect the health of workers and the tunnel construction. Attached Figure Description

[0013] Figure 1 This is a left view in a specific embodiment of the present invention.

[0014] Figure 2 This is a right view in a specific embodiment of the present invention.

[0015] Figure 3 This is a cross-sectional view of the internal structure of the cleaning device and dust removal unit in a specific embodiment of the present invention.

[0016] Figure 4 This is a specific embodiment of the present invention. Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Mobile vehicle; 2. Cleaning device; 21. Lifting box; 22. Fixed semi-circular tube; 23. Moving ring; 24. Moving semi-circular tube; 25. Threaded tube; 3. Dust removal section; 31. Water tank; 32. Connecting pipe; 33. Nozzle; 4. Guide section; 41. Guide rail; 42. Slider; 5. Lifting drive component; 51. Rotation drive device; 52. Threaded rod; 53. Moving plate; 54. Slide groove; 55. Slide plate; 56. Connecting rod; 6. Collection section; 61. Discharge port; 62. Guide plate; 63. Collection box. Detailed Implementation

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0019] like Figure 1-4As shown, a hole cleaning device for tunnel construction includes a mobile vehicle 1, which can be easily moved. The mobile vehicle 1 is equipped with a cleaning device 2, which can be raised and lowered. The cleaning device 2 can be adjusted according to the height of different blast holes. The cleaning device 2 can be inserted into the blast hole to clean the inside and collect the cleaned impurities. The mobile vehicle 1 is equipped with a lifting drive component 5, which drives the cleaning device 2 to rise and fall, allowing for easy height adjustment. The mobile vehicle 1 is equipped with a guide part 4, which serves to install and guide the cleaning device 2, ensuring it moves along the guide part 4 and preventing deviation. The cleaning device 2 is equipped with a dust removal part 3, which sprays water to suppress dust generated during hole cleaning, preventing excessive dust from affecting the health and safety of workers. The lifting drive component 5 is equipped with a collection part 6, which collects the impurities cleaned from the blast hole, preventing them from scattering and affecting the workers' work.

[0020] like Figure 1-4 As shown, the cleaning device 2 includes a lifting box 21 mounted above the mobile vehicle 1. The lifting box 21 can be raised and lowered along the height of the mobile vehicle 1. A semi-circular tube 22 is fixed on the side of the lifting box 21 near the wall. The fixed semi-circular tube 22 can be inserted into the blast hole. The fixed semi-circular tube 22 is connected to a blower, so that the blower blows air into the blast hole through the fixed semi-circular tube 22. A movable ring 23 is fitted on the surface of the fixed semi-circular tube 22. A movable semi-circular tube 24 is fixedly connected inside the movable ring 23, and the end of the movable semi-circular tube 24 away from the movable ring 23 extends into the lifting box 21. A threaded pipe 25 is rotatably connected to the side of the lifting box 21 near the fixed semi-circular tube 22. Both the fixed semi-circular tube 22 and the movable semi-circular tube 24 are located inside the threaded pipe 25. The threaded pipe 25 and the movable semi-circular tube 24 are connected to the lifting box 21. The semicircular tube 24 is threaded. The diameter of the fixed semicircular tube 22 is equal to the inner diameter of the blast hole. The diameter of the fixed semicircular tube 22 is equal to the diameter of the movable semicircular tube 24. When the movable ring 23 abuts against the end of the blast hole, the movable ring 23 seals the blast hole port. First, rotate the threaded tube 25. When the threaded tube 25 rotates, the movable semicircular tube 24 will move. Then, the movement of the movable semicircular tube 24 will drive the movable ring 23 to move. Adjust the position of the movable ring 23 according to the depth of the blast hole. Then, insert the fixed semicircular tube 22 into the blast hole and seal the outside of the blast hole through the movable ring 23. When the blower blows air into the blast hole through the fixed semicircular tube 22, impurities will enter the interior of the lifting box 21 through the movable semicircular tube 24, thus facilitating the cleaning of the blast hole.

[0021] like Figure 1 and Figure 2As shown, the guide part 4 includes two guide rails 41 fixedly connected to the mobile vehicle 1. Each guide rail 41 has a slider 42 slidably connected inside it. The two ends of the lifting box 21 are rotatably connected to the slider 42, which can facilitate the installation and fixing of the lifting box 21. Moreover, when the lifting box 21 is raised or lowered, it can also guide the lifting box 21, so that the lifting box 21 can be raised or lowered conveniently.

[0022] like Figure 1 and Figure 2 As shown, the lifting drive component 5 includes a rotary drive device 51 mounted on the mobile carriage 1. The rotary drive device 51 is a servo motor. A threaded rod 52 is fixedly connected to the output end of the rotary drive device 51. A movable plate 53 is threadedly connected to the surface of the threaded rod 52. Two symmetrical slide grooves 54 are provided on the mobile carriage 1, and the slide grooves 54 are located on both sides of the movable plate 53. A sliding plate 55 is slidably connected in the slide groove 54, and both ends of the movable plate 53 are connected to the two sliding plates 55 respectively. A connecting rod 56 is hinged to each of the two sliding plates 55, and the end of the connecting rod 56 away from the sliding plate 55 is hinged to the bottom surface of the lifting box 21. When the rotary drive device 51 is started, the output end of the rotary drive device 51 rotates, which drives the threaded rod 52 to rotate. Then, the rotation of the threaded rod 52 drives the movable plate 53 to move. Then, the movement of the movable plate 53 drives the sliding plate 55 to slide in the slide groove 54. When the sliding plate 55 moves, it pushes the lifting box 21 to rise and fall through the connecting rod 56, thereby facilitating the lifting of the lifting box 21.

[0023] like Figure 1-3 As shown, the dust removal unit 3 includes a water tank 31 installed on the lifting box 21. A water pump is installed inside the water tank 31. The output end of the water pump is fixedly connected to a connecting pipe 32, and the end of the connecting pipe 32 away from the water pump extends into the interior of the lifting box 21. A nozzle 33 is installed at the end of the connecting pipe 32 away from the water pump. After the water pump is started, the water pump can spray the water in the water tank 31 through the connecting pipe 32 and the nozzle 33 to humidify and reduce dust from the impurities cleaned from the blast hole, thereby effectively preventing the generation of dust.

[0024] like Figure 1 and Figure 2 As shown, the collection unit 6 includes a discharge port 61 opened on the bottom surface of the lifting box 21. A guide plate 62 is fixedly connected between two connecting rods 56 and is located below the discharge port 61. Impurities discharged through the discharge port 61 can fall onto the guide plate 62. A collection box 63 is rotatably connected between the two connecting rods 56 through a pin and is located below the guide plate 62. Under the action of gravity, the opening end of the collection box 63 faces the guide plate 62. Impurities falling from the discharge port 61 can fall into the collection box 63 along the guide plate 62, thereby facilitating the cleaning of the discharged impurities.

[0025] Working principle: First, the cleaning device 2 is adjusted according to the depth of the blast hole. After the cleaning device 2 is adjusted, the lifting drive component 5 is started, which drives the cleaning device 2 to move up and down to a suitable position. The cleaning device 2 is then inserted into the blast hole by moving the mobile cart 1. Then, the blower blows air through the cleaning device 2 into the blast hole, and the impurities in the blast hole are blown into the cleaning device 2. At the same time, the dust removal unit 3 is started to humidify and reduce dust to prevent dust generation. Finally, the impurities fall into the collection unit 6 for collection and centralized treatment. This makes it convenient to clean the blast hole and effectively avoids the generation of a large amount of dust in the blast hole during cleaning, which would affect the health of workers and the tunnel construction.

[0026] 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 in all respects as exemplary and non-limiting, 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. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] 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 hole cleaning device for tunnel construction, characterized in that, include: Mobile vehicle (1); Cleaning device (2): Set on the mobile vehicle (1), the cleaning device (2) can be raised and lowered. The cleaning device (2) can be adjusted according to the height of different blast holes to clean the inside of the blast holes. The cleaning device (2) includes a lifting box (21) installed above the mobile vehicle (1). The lifting box (21) can be lifted and lowered along the height direction of the mobile vehicle (1). A semi-circular tube (22) is fixed on the side of the lifting box (21) near the wall. A movable ring (23) is sleeved on the surface of the fixed semi-circular tube (22). A movable semi-circular tube (24) is fixedly connected inside the movable ring (23). The end of the movable semi-circular tube (24) away from the movable ring (23) extends into the lifting box (21). A threaded tube (25) is rotatably connected on the side of the lifting box (21) near the fixed semi-circular tube (22). Both the fixed semi-circular tube (22) and the movable semi-circular tube (24) are located inside the threaded tube (25). The threaded tube (25) is threadedly connected to the movable semi-circular tube (24). The diameter of the fixed semicircular tube (22) is equal to the inner diameter of the blast hole, and the diameter of the fixed semicircular tube (22) is equal to the diameter of the movable semicircular tube (24). When the movable ring (23) comes into contact with the end of the blast hole, the movable ring (23) blocks the blast hole port; First, rotate the threaded pipe (25). When the threaded pipe (25) rotates, the movable semicircular pipe (24) will move. Then, the movement of the movable semicircular pipe (24) will drive the movable ring (23) to move. Adjust the position of the movable ring (23) according to the depth of the blast hole. Then, insert the fixed semicircular pipe (22) into the blast hole and seal the outside of the blast hole through the movable ring (23). When the blower blows air into the blast hole through the fixed semicircular pipe (22), impurities will enter the interior of the lifting box (21) through the movable semicircular pipe (24), thus facilitating the cleaning of the blast hole. Lifting drive component (5): installed on the mobile vehicle (1), used to drive the cleaning device (2) to lift; Guide section (4): It is installed on the mobile vehicle (1) and serves to install and guide the cleaning device (2), so that the cleaning device (2) can move up and down along the guide section (4); Dust removal unit (3): installed on the cleaning device (2), used to spray water to reduce dust generated during the cleaning process; Collection unit (6): It is installed on the lifting drive unit (5) and is connected to the lifting box (21) for collecting impurities cleaned out from the borehole.

2. The hole cleaning device for tunnel construction according to claim 1, characterized in that, The guide section (4) includes two guide rails (41) fixedly connected to the moving vehicle (1), and sliders (42) are slidably connected in both guide rails (41), and the two ends of the lifting box (21) are rotatably connected to the sliders (42).

3. The hole cleaning device for tunnel construction according to claim 1, characterized in that, The lifting drive component (5) includes a rotary drive device (51) installed on the moving vehicle (1). The output end of the rotary drive device (51) is fixedly connected to a threaded rod (52). The surface of the threaded rod (52) is threadedly connected to a moving plate (53). The moving vehicle (1) has two symmetrical sliding grooves (54), and the sliding grooves (54) are located on both sides of the moving plate (53). A sliding plate (55) is slidably connected in the sliding groove (54). The two ends of the moving plate (53) are connected to the two sliding plates (55) respectively. A connecting rod (56) is hinged on each of the two sliding plates (55), and the end of the connecting rod (56) away from the sliding plate (55) is hinged to the bottom surface of the lifting box (21).

4. The hole cleaning device for tunnel construction according to claim 3, characterized in that, The rotary drive device (51) is a servo motor.

5. A hole cleaning device for tunnel construction according to claim 1, characterized in that, The dust removal unit (3) includes a water tank (31) installed on the lifting box (21). A water pump is installed in the water tank (31). The output end of the water pump is fixedly connected to a connecting pipe (32). The end of the connecting pipe (32) away from the water pump extends into the interior of the lifting box (21). A nozzle (33) is installed at the end of the connecting pipe (32) away from the water pump.

6. A hole cleaning device for tunnel construction according to claim 3, characterized in that, The collection section (6) includes a discharge port (61) opened on the bottom surface of the lifting box (21), a guide plate (62) is fixedly connected between two connecting rods (56), and the guide plate (62) is located below the discharge port (61). A collection box (63) is rotatably connected between the two connecting rods (56) through a pin, and the collection box (63) is located below the guide plate (62).

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