Air door device for tunnel construction

Abstract

The utility model relates to the technical field of tunnel construction, and discloses a tunnel construction air door device which comprises a tunnel inner wall, a first fan-shaped plate and a second fan-shaped plate, a first screw is arranged in a first mounting hole, and a cross beam plate is arranged on the outer surface of the bottom of the first fan-shaped plate and the outer surface of the bottom of the second fan-shaped plate. Side beams are arranged on the inner walls of the left side and the right side of the inner wall of the tunnel, second screws are arranged in second mounting holes, first springs are fixedly connected to the interiors of adjusting grooves, supporting beams are fixedly connected to the other ends of the first springs, and pull rods are fixedly connected to the outer surfaces of the supporting beams. The air door device is divided into a plurality of air door devices by arranging the first sector plate, the second sector plate, the cross beam plate and the reinforcing plate, the air door devices are matched with the first screws, the second screws, the bolts, the first springs and the supporting beams, assembly type assembly is adopted, the air door devices can be conveniently disassembled when not used subsequently, and the air door devices are convenient to disassemble and assemble and can be repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel construction air door device. Background Art

[0002] During tunnel construction, forced ventilation is often used to expel the large amounts of dust and toxic gases generated within the tunnel. This involves using axial fans and air ducts to deliver clean air from outside the tunnel to the tunnel face. This increases the air pressure at the face, creating an inward-outward airflow within the tunnel, which then expels polluted air from the tunnel entrance. To ensure that the airflow within the tunnel follows a predetermined path, dampers are installed in certain auxiliary passages that do not require ventilation (such as vehicle and pedestrian passages connected to the main tunnel). These dampers prevent airflow while allowing for the temporary passage of people and vehicles.

[0003] The main structure of the existing tunnel construction damper is formed by casting a brick-concrete structure or a steel mesh and shotcrete structure to seal the tunnel section. The investment cost in construction is high and the production is complicated. Since it is only used during the tunnel construction, it is difficult to dismantle it after it is not used in the later stage. Therefore, a tunnel construction damper device is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a tunnel construction damper device to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a tunnel construction air door device, comprising a tunnel inner wall, a first fan-shaped plate and a second fan-shaped plate, the outer surfaces of the first fan-shaped plate and the second fan-shaped plate are fixedly connected with an arc-shaped fixing plate adapted thereto, the outer surface of the arc-shaped fixing plate is provided with a plurality of first mounting holes, the interior of the first mounting holes is provided with a first screw, the bottom outer surface of the first fan-shaped plate and the second fan-shaped plate is provided with a crossbeam plate, the left and right inner walls of the tunnel inner wall are provided with side beams, the outer surfaces of the two side beams are provided with a second mounting hole, the interior of the second mounting hole is provided with a second screw, the left and right ends of the crossbeam plate are provided with an adjustment slot, the interior of the adjustment slot is fixedly connected with a first spring, the other end of the first spring is fixedly connected to a support beam, the outer surface of the support beam is fixedly connected with a pull rod, and the outer surface of the side beam is provided with a positioning slot.

[0006] Furthermore, a reinforcing plate is provided on the bottom outer surface of the cross beam plate, and the reinforcing plate is connected to the cross beam plate by bolts.

[0007] Furthermore, the rear side outer surface close to the top end of the reinforcing plate and the rear side outer surfaces of the top end and bottom end of the beam are fixedly connected to two support plates, the top outer surfaces of the two support plates are fixedly connected to a second spring, and the end of the second spring away from the support plate is fixedly connected to an arc-shaped clamping plate.

[0008] Furthermore, a door-shaped installation groove is provided on the outer surface of the reinforcing plate, a door frame is provided at the door-shaped installation groove, and a steel door is installed on the outer surface of the door frame.

[0009] Furthermore, air bags are provided between the two upper and lower arc-shaped clamping plates, and the two air bags are connected by a hose.

[0010] Furthermore, a sliding rod is fixedly connected to the interior of the adjustment slot, the first spring is sleeved on the outer surface of the sliding rod, and the support beam is slidably connected to the outer surface of the sliding rod.

[0011] Furthermore, two sliding grooves are provided on the front outer surface of the cross beam plate, and the two pull rods are respectively slidably connected to the inside of the two sliding grooves.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The tunnel construction damper device is divided into multiple parts by arranging a first fan-shaped plate, a second fan-shaped plate, a crossbeam plate and a reinforcement plate. The damper device is assembled in an assembled manner with a first screw, a second screw, a bolt, a first spring and a support beam, which is convenient for subsequent disassembly of the damper device when not in use. The device is easy to disassemble and assemble and can be reused.

[0014] 2. The tunnel construction damper device delivers gas to the interior of the airbag through an air pump, causing the airbag to expand and closely adhere to the gaps between the first sector plate, the second sector plate and the crossbeam plate, and the gaps between the crossbeam plate and the reinforcing plate, ensuring sealing performance. The airbag can also be clamped by the second spring and the arc-shaped clamping plate to increase its stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the crossbeam plate structure of the utility model;

[0018] Figure 4 This is a rear view structural diagram of the utility model;

[0019] Figure 5 For this utility model Figure 4Enlarged structural diagram at point A in the middle.

[0020] In the figure: 1. Tunnel inner wall; 2. First sector plate; 3. Second sector plate; 4. Arc-shaped fixing plate; 5. First screw; 6. Crossbeam plate; 7. Adjustment slot; 8. First spring; 9. Support beam; 10. Pull rod; 11. Side beam; 12. Positioning slot; 13. Reinforcement plate; 14. Door frame; 15. Steel door; 16. Support plate; 17. Second spring; 18. Arc-shaped splint; 19. Airbag. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1:

[0023] Please refer to Figure 1-Figure 5The utility model provides a technical solution: a tunnel construction air door device, comprising a tunnel inner wall 1, a first fan-shaped plate 2 and a second fan-shaped plate 3, the outer surfaces of the first fan-shaped plate 2 and the second fan-shaped plate 3 are fixedly connected with an arc-shaped fixing plate 4 adapted thereto, the outer surface of the arc-shaped fixing plate 4 is provided with a plurality of first mounting holes, the interior of the first mounting holes is provided with a first screw 5, the bottom outer surface of the first fan-shaped plate 2 and the second fan-shaped plate 3 is provided with a crossbeam plate 6, the left and right inner walls of the tunnel inner wall 1 are provided with side beams 11, the outer surfaces of the two side beams 11 are provided with second mounting holes, the second A second screw is provided inside the mounting hole, and adjustment slots 7 are provided at both ends of the crossbeam plate 6. The inside of the adjustment slots 7 are fixedly connected with a first spring 8, and the other end of the first spring 8 is fixedly connected with a support beam 9. The outer surface of the support beam 9 is fixedly connected with a pull rod 10, and a positioning slot 12 is provided on the outer surface of the side beam 11. Specifically, the first sector plate 2 is first fixed to the inner wall 1 of the tunnel. At this time, the first screw 5 is passed through the first mounting hole and nailed into the inner wall 1 of the tunnel, and the arc-shaped fixing plate 4 on the first sector plate 2 is fixed to the position corresponding to the arch of the inner wall 1 of the tunnel, and then the second sector plate 3 is fixed. At this time, the positioning strip is inserted from the bottom to the top of the positioning groove 12, and the arc-shaped fixing plate 4 on the second sector plate 3 is fixed at the position corresponding to the arch of the tunnel inner wall 1. The first screw 5 passes through the first mounting hole and is nailed into the tunnel inner wall 1. After the first sector plate 2 and the second sector plate 3 are fixed, the two side beams 11 are fixed in sequence. At this time, the bottom of the two side beams 11 are respectively abutted against the bottom of the first sector plate 2 and the second sector plate 3, and the second screw is passed through the second mounting hole and nailed into the tunnel inner wall 1 to fix the side beams 11, and then the cross beam plate 6 is connected to the The two side beams 11 are connected, and the pull rod 10 is first pushed in the direction of approaching each other. The pull rod 10 drives the support beam 9 and compresses the first spring 8, so that the support beam 9 is stored in the inside of the adjustment groove 7. When the crossbeam plate 6 moves to the position corresponding to the support beam 9 and the positioning groove 12, the force on the pull rod 10 is stopped, so that the first spring 8 drives the support beam 9 to reset, so that the support beam 9 is inserted into the inside of the positioning groove 12, and the crossbeam is overlapped between the two side beams 11. The damper device is installed on the inner wall 1 of the tunnel in an assembled manner, which is convenient for disassembly when not in use. It is convenient to disassemble and assemble and can be reused.

[0024] In this embodiment, a reinforcing plate 13 is provided on the bottom outer surface of the cross beam plate 6, and the reinforcing plate 13 is connected to the cross beam plate 6 by bolts. Specifically, the reinforcing plate 13 and the cross beam plate 6 are connected by screwing the bolts into corresponding screw holes.

[0025] In this embodiment, two support plates 16 are fixedly connected to the outer surface of the top end of the rear side of the reinforcing plate 13 and the outer surfaces of the top and bottom ends of the rear side of the crossbeam. The top outer surfaces of the two support plates 16 are fixedly connected to a second spring 17. The end of the second spring 17 away from the support plate 16 is fixedly connected to an arc-shaped clamping plate 18. Specifically, by placing the airbag 19 between the two corresponding arc-shaped clamping plates 18, the second spring 17 is deformed when the airbag 19 expands or contracts, so that the airbag 19 can be fixed between the two corresponding arc-shaped clamping plates 18.

[0026] In this embodiment, a door-shaped installation groove is formed on the outer surface of the reinforcing plate 13 , a door frame 14 is provided at the door-shaped installation groove, and a steel door 15 is installed on the outer surface of the door frame 14 .

[0027] In this embodiment, airbags 19 are provided between the two upper and lower arc-shaped clamping plates 18, and the two airbags 19 are connected by a hose. Specifically, the airbags 19 are inflated by an external air pump, so that the airbags 19 expand, and the second spring 17 expands and contracts accordingly. The airbags 19 are tightly attached to the gaps between the first fan plate 2, the second fan plate 3 and the crossbeam plate 6 and the gaps between the crossbeam plate 6 and the reinforcing plate 13 to ensure sealing performance.

[0028] In this embodiment, a sliding rod is fixedly connected to the inside of the adjustment groove 7, the first spring 8 is sleeved on the outer surface of the sliding rod, and the support beam 9 is slidably connected to the outer surface of the sliding rod. Specifically, when the pull rod 10 is pulled to drive the support beam 9 to move, the support beam 9 slides on the outer surface of the sliding rod, and the first spring 8 is limited by the sliding rod to prevent the first spring 8 from tilting and deforming.

[0029] In this embodiment, two sliding grooves are provided on the front outer surface of the crossbeam plate 6, and the two pull rods 10 are respectively slidably connected to the inside of the two sliding grooves. Specifically, when the pull rod 10 is pulled, the pull rod 10 slides inside the sliding groove, and the required channel is provided for the pull rod 10 through the sliding groove.

[0030] It is worth noting that after installation is completed, sealant can be applied between the arc-shaped fixing plate 4 and the side beam 11 and the inner wall 1 of the tunnel to increase the sealing performance and prevent invalid airflow.

[0031] Working principle: When the present invention is in use, first fix the first sector plate 2 to the tunnel inner wall 1. At this time, the first screw 5 is passed through the first mounting hole and nailed into the tunnel inner wall 1, and the arc-shaped fixing plate 4 on the first sector plate 2 is fixed at the position corresponding to the arch of the tunnel inner wall 1. Then, the second sector plate 3 is fixed. At this time, the positioning strip is inserted from the bottom to the top of the positioning groove 12, and the arc-shaped fixing plate 4 on the second sector plate 3 is fixed at the position corresponding to the arch of the tunnel inner wall 1. The first screw 5 is passed through the first mounting hole and nailed into the tunnel inner wall 1. After the first sector plate 2 and the second sector plate 3 are fixed, the two side beams 11 are fixed in turn. At this time, the bottoms of the two side beams 11 are respectively abutted against the bottoms of the first sector plate 2 and the second sector plate 3, and then the second screw is passed through the second mounting hole and nailed into the tunnel inner wall 1. The side beams 11 are fixed, and then the crossbeam plate 6 is connected to the two side beams 11. First, the pull rod 10 is pushed in the direction of approaching each other. The pull rod 10 drives the support beam 9 and compresses the first spring 8, so that the support beam 9 is stored in the inside of the adjustment groove 7. When the crossbeam plate 6 moves to the position corresponding to the support beam 9 and the positioning groove 12, the force on the pull rod 10 is stopped, so that the first spring 8 drives the support beam 9 to reset, so that the support beam 9 is inserted into the inside of the positioning groove 12, and the crossbeam is overlapped between the two side beams 11. The reinforcing plate 13 is then connected to the support beam 9 by bolts, and the door frame 14 and the steel door 15 are installed to complete the installation of the damper device. When disassembling, the above steps can be reversed, so that the damper device is installed on the inner wall 1 of the tunnel in an assembled manner, which is convenient for subsequent disassembly when not in use and can be reused.

[0032] After completing the installation of the damper device, the airbag 19 is inflated and placed in the corresponding arc-shaped clamping plate 18. The airbag 19 is inflated by an external air pump, so that the airbag 19 expands, and the second spring 17 expands and contracts accordingly. The airbag 19 is tightly attached to the gap between the first fan plate 2, the second fan plate 3 and the crossbeam plate 6 and the gap between the crossbeam plate 6 and the reinforcing plate 13 to ensure sealing performance.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel construction damper device, comprising a tunnel inner wall (1), a first sector plate (2) and a second sector plate (3), characterized in that: The outer surfaces of the first fan-shaped plate (2) and the second fan-shaped plate (3) are fixedly connected with an arc-shaped fixing plate (4) adapted thereto, the outer surface of the arc-shaped fixing plate (4) is provided with a plurality of first mounting holes, the interior of the first mounting holes is provided with a first screw (5), the bottom outer surfaces of the first fan-shaped plate (2) and the second fan-shaped plate (3) are provided with a crossbeam plate (6), the left and right inner walls of the tunnel inner wall (1) are provided with side beams (11), the outer surfaces of the two side beams (11) are provided with a second mounting hole, the interior of the second mounting hole is provided with a second screw, the left and right ends of the crossbeam plate (6) are provided with an adjustment slot (7), the interior of the adjustment slot (7) is fixedly connected with a first spring (8), the other end of the first spring (8) is fixedly connected with a support beam (9), the outer surface of the support beam (9) is fixedly connected with a pull rod (10), and the outer surface of the side beam (11) is provided with a positioning slot (12).

2. A tunnel construction damper device according to claim 1, characterized in that: A reinforcing plate (13) is provided on the bottom outer surface of the cross beam plate (6), and the reinforcing plate (13) is connected to the cross beam plate (6) via bolts.

3. The tunnel construction damper device according to claim 2, characterized in that: Two support plates (16) are fixedly connected to the outer surface of the top end of the rear side of the reinforcing plate (13) and the outer surfaces of the top end and bottom end of the rear side of the crossbeam. The top outer surfaces of the two support plates (16) are fixedly connected to a second spring (17). The end of the second spring (17) away from the support plate (16) is fixedly connected to an arc-shaped clamping plate (18).

4. The tunnel construction damper device according to claim 2, characterized in that: The outer surface of the reinforcing plate (13) is provided with a door-shaped installation groove, a door frame (14) is provided at the door-shaped installation groove, and a steel door (15) is installed on the outer surface of the door frame (14).

5. The tunnel construction damper device according to claim 3, characterized in that: An air bag (19) is provided between two upper and lower arc-shaped clamping plates (18) that are opposite to each other, and the two air bags (19) are connected through a hose.

6. The tunnel construction damper device according to claim 1, characterized in that: The interior of the adjustment groove (7) is fixedly connected to a slide rod, the first spring (8) is sleeved on the outer surface of the slide rod, and the support beam (9) is slidably connected to the outer surface of the slide rod.

7. The tunnel construction damper device according to claim 1, characterized in that: Two sliding grooves are provided on the front outer surface of the cross beam plate (6), and the two pull rods (10) are respectively slidably connected to the inside of the two sliding grooves.

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