Novel device for quickly repairing damaged ventilation pipe in construction tunnel

Abstract

The utility model discloses a novel device for quickly repairing the damage of a ventilation pipe in a construction tunnel, which comprises a first upright post and a second upright post, the first upright post and the second upright post are vertically arranged and are connected in the axial direction, and the second upright post is positioned at the upper end and is connected with the first upright post through a horizontally arranged fourth rotating shaft; and a folding telescopic mechanical arm is arranged at the upper end of the second stand column, can stretch up and down and front and back, and can rotate around the second stand column under the driving of the second stand column. By adopting the device, the damaged air pipe can be quickly repaired, the fan is not stopped in the repairing process, and continuous ventilation of a tunnel face is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel ventilation construction, and particularly relates to a novel device for quickly repairing damaged ventilation pipes in a construction tunnel. Background Technique

[0002] During tunnel construction, blasting will generate a large amount of smoke and dust, as well as toxic and harmful gases. The operation of construction equipment will produce various exhaust gases, and some gas tunnels will continuously release gas. These pollutants need to be continuously diluted and discharged from the tunnel to provide a safe, healthy and comfortable working environment for the operators in the tunnel. At present, the common ventilation method is mainly forced ventilation. As the carrier of ventilation, the integrity of the air duct will be the most important factor affecting the ventilation effect when other media remain unchanged. Once the air duct is damaged and the air volume leaks at the damaged place, it often causes insufficient air volume at the heading face, an increase in the pollutant concentration and temperature in the tunnel, etc., seriously affecting the physical and mental health of the operators and the construction efficiency. When the air volume at the heading face is insufficient, the frequency of the fan will be increased to make up for the air volume loss at the damaged part of the air duct, thereby increasing the power consumption and causing an increase in cost. Therefore, once the air duct is damaged, it should be repaired as soon as possible. Content of the Utility Model

[0003] The purpose of the utility model is to provide a novel device for quickly repairing damaged ventilation pipes in a construction tunnel, which can realize the quick repair of damaged air ducts and keep the heading face continuously ventilated without stopping the operation of the fan during the repair process.

[0004] The utility model adopts the following technical scheme: A novel device for quickly repairing damaged ventilation pipes in a construction tunnel, including a first upright post and a second upright post. Both the first upright post and the second upright post are vertically arranged and axially connected. The second upright post is located at the upper end and is connected to the first upright post through a horizontally arranged fourth rotating shaft.

[0005] A folding telescopic robotic arm is arranged at the upper end of the second upright post. The folding telescopic robotic arm can be telescoped up, down, forward and backward, and can rotate around the second upright post under the drive of the second upright post.

[0006] Further, the folding telescopic robotic arm includes a first robotic arm, the lower end of which is connected to the upper end of the second upright post through a first rotating shaft. The first rotating shaft is horizontally arranged and perpendicularly cross-connected with the second upright post to enable the first robotic arm to rotate around the first rotating shaft.

[0007] Further, the first robotic arm is cylindrical with an open upper end. A cylindrical second robotic arm is coaxially sleeved inside it. A first stepping motor is arranged at the lower bottom end inside the first robotic arm. The first stepping motor is connected to one end of a first ball screw through a first coupling. The other end of the first ball screw is connected to the bottom end of the second robotic arm. The second robotic arm realizes upward elongation or downward retraction driven by the first ball screw.

[0008] Further, the upper end of the second robotic arm is connected to a third robotic arm through a second rotating shaft. The second robotic arm and the third robotic arm form a V shape with the opening downward; the second rotating shaft is vertically and cross - connected to the upper end of the third robotic arm;

[0009] The third robotic arm is cylindrical and has an open front end. A fourth robotic arm is coaxially sleeved inside the third robotic arm. A second stepping motor is arranged at the rear bottom end inside the third robotic arm. The second stepping motor is connected to one end of a second ball screw through a second coupling. The other end of the second ball screw is connected to the rear bottom end of the fourth robotic arm. The fourth robotic arm realizes forward elongation or backward retraction driven by the second ball screw.

[0010] Further, the front end of the fourth robotic arm is connected to a fifth robotic arm through a third rotating shaft. The third rotating shaft is vertically arranged, and the fifth robotic arm is horizontally arranged and rotates in the horizontal plane around the third rotating shaft;

[0011] The fifth robotic arm is cube - shaped with an open front end. A sixth robotic arm is coaxially sleeved inside it. A third stepping motor is arranged at the rear bottom end of the fifth robotic arm. The third stepping motor is connected to one end of a third ball screw through a third coupling. The other end of the third ball screw is connected to the rear bottom end of the sixth robotic arm. The sixth robotic arm realizes forward elongation or backward retraction driven by the third ball screw.

[0012] Further, the sixth robotic arm is a horizontally arranged cube. An operation platform is arranged at the front end of the cube. A fall - prevention railing is enclosed around the operation platform. Among them, a switchable door is opened at the rear end of the fall - prevention railing. The left and right sides are connected and closed at the upper end, and the upper part of the front end is open.

[0013] Further, the first upright post is vertically arranged on the plate body of the flatbed truck. Four support legs are arranged at the lower part of the plate body. The upper end of each support leg is connected to the plate body through a folding hinge.

[0014] The beneficial effects of the present utility model are as follows: 1. The flatbed truck can quickly reach the site, quickly carry out operations, and complete the repair work as soon as possible, improving work efficiency. 3. The folding telescopic robotic arm can ensure that the vehicle can carry out the repair work of the air duct on the tunnel vault without staying in the middle of the road, without affecting traffic. 2. The circumferential pressure strip can make the air duct cloth and the original air duct bond firmly as well as possible under the action of internal wind pressure and external pressure, reducing the possibility of subsequent air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a new device for quickly repairing damaged ventilation ducts in a construction tunnel;

[0016] Figure 2 is a schematic structural diagram of a new device for quickly repairing damaged ventilation ducts in a construction tunnel excluding the flatbed truck;

[0017] Wherein: 1. Flatbed truck; 2. Support legs; 3, 4 - Rotating columns; 5, 6, 7, 8, 9, 10 - Robotic arms; 11. Operation platform; 12. Guardrail; 13. Switchable door; 14. Toolbox; 15. Operation platform. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments.

[0019] A new device for quickly repairing damaged ventilation ducts in a construction tunnel according to the present utility model, as Figure 1 and 2 shown, includes:

[0020] The flatbed truck 1 includes a plate body, and four support legs 2 are provided at the lower part of the plate body. The upper ends of the support legs 2 are all connected to the plate body through folding hinges. The four support legs 2 are located at the four vertices of a quadrilateral.

[0021] On the plate body, and at the rear end, there are provided a vertical first column 3 and a second column 4. The first column 3 and the second column 4 are axially connected in the vertical direction. The second column 4 is located at the upper end and is connected through a horizontally arranged fourth rotating shaft. The end of the plate body close to the working surface is the front end. The upper end of the second column 4 is connected to the folding telescopic robotic arm.

[0022] The folding telescopic robotic arm includes a first robotic arm 5. The lower end of the first robotic arm 5 is connected to the upper end of the second column 4 through a first rotating shaft. The first rotating shaft is horizontally arranged and is vertically and cross-connected to the second column 4 to enable the first robotic arm 5 to rotate around the first rotating shaft.

[0023] The first robotic arm 5 is cylindrical with an open upper end. Inside it, a cylindrical second robotic arm 6 is coaxially sleeved. At the bottom end inside the first robotic arm 5, a first stepping motor is provided. The first stepping motor is connected to one end of a first ball screw through a first coupling, and the other end of the first ball screw is connected to the bottom end of the second robotic arm 6. Driven by the first ball screw, the second robotic arm 6 can extend upward or retract downward to correspond to working areas at different heights. The second column 4 drives the first robotic arm 5 to rotate 360° around the vertical central axis.

[0024] The upper end of the second robotic arm 6 is connected to the third robotic arm 7 through a second rotating shaft. The second robotic arm 6 and the third robotic arm 7 form a V shape with the opening downward. The second rotating shaft is vertically and cross - connected to the upper end of the third robotic arm 7. The front end of the third robotic arm 7 is connected to a fourth robotic arm 8.

[0025] Both the third robotic arm 7 and the fourth robotic arm 8 are cylindrical with an open front end. The fourth robotic arm 8 is coaxially sleeved inside the third robotic arm 7. At the rear bottom end inside the third robotic arm 7, a second stepping motor is provided. The second stepping motor is connected to one end of a second ball screw through a second coupling, and the other end of the second ball screw is connected to the rear bottom end of the fourth robotic arm 8.

[0026] The front end of the fourth robotic arm 8 is connected to a fifth robotic arm 9 through a third rotating shaft. The third rotating shaft is vertically arranged, and the fifth robotic arm 9 is horizontally arranged and rotates in the horizontal plane around the third rotating shaft.

[0027] The fifth robotic arm 9 is cubic. Inside it, a sixth robotic arm 10 is coaxially sleeved. At the rear bottom end of the fifth robotic arm 9, a third stepping motor is provided. The third stepping motor is connected to one end of a third ball screw through a third coupling, and the other end of the third ball screw is connected to the rear bottom end of the sixth robotic arm 10. Driven by the third ball screw, the sixth robotic arm 10 can extend forward or retract backward to correspond to different working areas for better fitting close to the working area.

[0028] The sixth robotic arm 10 is a horizontally arranged cube. At the front end of the cube, a working platform 11 is provided. A fall - prevention railing 12 is enclosed around the working platform 11. Among them, at the rear end of the fall - prevention railing 12, a switchable door 14 is opened. The left and right sides are connected and closed at the upper end, and its front upper part is open to facilitate the construction of construction workers. An operating platform is arranged in the enclosed area. On the operating platform, there are storage boxes for storing manual sewing machines, high - strength resin threads, strong cleaning agents, hot air guns, strong adhesives, air duct cloth strips, and circumferential pressure strips. The specifications of the working platform 11 should meet the needs of multiple people working. For example, two people can work simultaneously. If the damaged size is large, two people can work simultaneously from both sides to the middle, which can improve work efficiency.

[0029] The operator enters the tunnel to inspect the integrity of the air duct. If any damage is found, the flatbed truck 1 will enter the site. After entering the site, the flatbed truck 1 will be parked on the side close to the tunnel at the damaged area of the air duct, preferably without affecting traffic. Then, the support legs 2 will be opened to ensure stable operation. The operator enters the working platform 11 and operates the button to control the folding and telescoping of the robotic arm, so that the working platform 11 reaches the damaged position of the air duct.

[0030] When the damaged shape of the air duct is linear or wavy, that is, there is no missing air duct and it can continue to be anastomosed, use high-strength resin thread to sew and anastomose the damaged position. Then, use a strong cleaning agent to clean the area within 10 cm around the damaged area. Then, use a hot air gun to dry the area. Apply strong adhesive to the entire area, with a thickness of 2 - 5 mm. Then, use a hot air gun to heat the strong adhesive for about 10 s. Bond the air duct cloth strip cut in advance to fit the area exactly. Then, use a hot air gun to heat it for about 10 s. Then, use a circumferential pressure strip to circumferentially bind the air duct and apply circumferential pressure to this area for about 20 s at each place to ensure that the air duct cloth strip can be firmly adhered to the original air duct. After that, remove the circumferential pressure strip. Since the wind pressure at the air leakage area is relatively high, high-strength resin thread can better withstand the pressure. First, sew and anastomose, and then use the air duct cloth strip to apply pressure and bond to ensure the repair effect.

[0031] When the damaged shape of the air duct is planar, that is, there is a missing air duct and it cannot continue to be anastomosed. Even if anastomosis can be performed, it will cause wrinkles in the air duct, affecting the ventilation effect and visual appearance. Therefore, in this case, no suture anastomosis will be performed. Directly compare the area to be covered by this air duct cloth strip, use a strong cleaning agent to clean the area, then use a hot air gun to dry the area. Apply strong adhesive to the entire area, with a thickness of 2 - 5 mm. Then, use a hot air gun to heat the strong adhesive for about 10 s. Bond the air duct cloth strip cut in advance to fit the area exactly. Then, use a hot air gun to heat it for about 10 s. Then, use a circumferential pressure strip to be sleeved on the air duct and located in the repair area, apply circumferential pressure to this area, and leave the circumferential pressure strip in this area. Use several circumferential pressure strips to cover this area.

Claims

1. A novel device for quickly repairing damaged ventilation pipes in construction tunnels, characterized in that, It includes a first upright column (3) and a second upright column (4). Both the first upright column (3) and the second upright column (4) are vertically arranged and connected axially. The second upright column (4) is located at the upper end and is connected to the first upright column (3) through a horizontally arranged fourth rotating shaft. A folding and telescopic robotic arm is arranged at the upper end of the second upright column (4). The folding and telescopic robotic arm can be telescoped up and down and back and forth, and can rotate around the second upright column (4) driven by the second upright column (4).

2. The novel device for quickly repairing the damaged ventilation pipe in the construction tunnel according to claim 1, characterized in that, The folding and telescopic robotic arm includes a first robotic arm (5). The lower end of the first robotic arm (5) is connected to the upper end of the second upright column (4) through a first rotating shaft. The first rotating shaft is horizontally arranged and perpendicularly cross-connected to the second upright column (4) to enable the first robotic arm (5) to rotate around the first rotating shaft.

3. The novel device for rapid repair of damaged ventilation pipes in a construction tunnel according to claim 2, characterized in that, The first robotic arm (5) is cylindrical with an open upper end. A cylindrical second robotic arm (6) is coaxially sleeved inside it. A first stepping motor is arranged at the lower bottom end inside the first robotic arm (5). The first stepping motor is connected to one end of a first ball screw through a first coupling. The other end of the first ball screw is connected to the bottom end of the second robotic arm (6). The second robotic arm (6) is driven by the first ball screw to extend upward or retract downward.

4. The novel device for quickly repairing the damaged ventilation pipe in the construction tunnel according to claim 3, characterized in that, The upper end of the second robotic arm (6) is connected to a third robotic arm (7) through a second rotating shaft. The second robotic arm (6) and the third robotic arm (7) form a V shape with the opening downward. The second rotating shaft is perpendicularly cross-connected to the upper end of the third robotic arm (7). The third robotic arm (7) is cylindrical and has an open front end. A fourth robotic arm (8) is coaxially sleeved inside the third robotic arm (7). A second stepping motor is arranged at the rear bottom end inside the third robotic arm (7). The second stepping motor is connected to one end of a second ball screw through a second coupling. The other end of the second ball screw is connected to the rear bottom end of the fourth robotic arm (8). The fourth robotic arm (8) is driven by the second ball screw to extend forward or retract backward.

5. A novel device for quickly repairing a damaged ventilation pipe in a construction tunnel as described in claim 4, characterized in that, The front end of the fourth robotic arm (8) is connected to a fifth robotic arm (9) through a third rotating shaft. The third rotating shaft is vertically arranged. The fifth robotic arm (9) is horizontally arranged and rotates in a horizontal plane around the third rotating shaft. The fifth robotic arm (9) is cubic with an open front end. A sixth robotic arm (10) is coaxially sleeved inside it. A third stepping motor is arranged at the rear bottom end of the fifth robotic arm (9). The third stepping motor is connected to one end of a third ball screw through a third coupling. The other end of the third ball screw is connected to the rear bottom end of the sixth robotic arm (10). The sixth robotic arm (10) is driven by the third ball screw to extend forward or retract backward.

6. A novel device for quickly repairing a damaged ventilation pipe in a construction tunnel as described in claim 5, characterized in that, The sixth robotic arm (10) is a horizontally arranged cube, and an operation platform (11) is provided at the front end of the cube. A fall prevention railing (12) surrounds the perimeter of the operation platform (11). Among them, a switchable door (14) is provided at the rear end of the fall prevention railing (12). The left and right sides are connected and closed at the upper end, and the upper part of the front end is open.

7. A novel device for quickly repairing damaged ventilation pipes in a construction tunnel according to claim 6, characterized in that, The first upright column (3) is vertically arranged on the plate body of the flatbed truck (1). Four support legs (2) are provided at the lower part of the plate body, and the upper ends of the support legs (2) are all connected to the plate body through folding hinges.

Images