Two lining steel bar waterproof cloth integration layout trolley

By designing a three-point hoisting structure for the integrated installation of secondary lining steel reinforcement and waterproof membrane, the problem of high difficulty and low efficiency in installing secondary lining steel reinforcement and waterproof membrane during tunnel construction was solved, achieving efficient and safe tunnel construction and adapting to the constraints of irregularly deformed air ducts.

CN121345583BActive Publication Date: 2026-07-10RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD
Filing Date
2025-11-18
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing technologies, the installation of secondary lining reinforcement and waterproof membrane in tunnel construction is difficult and inefficient, and is harmful to the health of construction workers in high-altitude and low-oxygen environments. The installation of ventilation ducts also suffers from problems such as size mismatch, high cost, difficulty in adjustment, and unmet need for automated adjustment.

Method used

Design a trolley for the integrated installation of secondary lining steel reinforcement and waterproof fabric. It adopts a three-point hoisting structure constraint unit, including an arc frame, a track car, a main beam, a hoisting unit, and a suspended basket. The three-point hoisting structure enables the constraint and adjustment of the duct, reduces installation costs, and ensures construction space and vehicle accessibility.

Benefits of technology

It enables efficient installation of secondary lining steel bars and waterproof membranes in high-altitude, low-oxygen environments, reducing construction difficulty and costs, improving installation accuracy and construction safety, and ensuring the stability and adaptability of the ductwork.

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Abstract

A kind of two-lining steel bar waterproof cloth integration layout trolley, each of two ends of trolley is equipped with an installation frame, each installation frame is provided with an arc-shaped frame, installation unit is arranged between the two arc-shaped frames, the installation unit includes traction mechanism, track car, the traction mechanism includes main beam, mounting rod one, mounting rod two, mounting rod three, intermediate support, bottom beam, middle beam, upper beam, hook, left support, right support, the track car includes main body, main roller, support part, support arm, auxiliary wheel, each arc-shaped frame is provided with the track car, and the main beam is arranged between the two track cars.
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Description

Technical Field

[0001] This invention relates to the field of tunnel construction, specifically to an integrated installation trolley for secondary lining steel reinforcement and waterproof fabric. Background Technology

[0002] Single-track, small-section tunnels are known railway tunnels. When installing secondary lining reinforcement and waterproofing membranes using traditional manual methods, the work faces challenges such as high difficulty, low efficiency, and difficulty in ensuring installation accuracy. Furthermore, the unique environment of railway construction, with its high altitude and low oxygen concentration, poses a severe challenge to the health of construction workers. Therefore, the need for automated installation of secondary lining reinforcement and waterproofing membranes is particularly urgent.

[0003] In engineering practice, the following problems exist:

[0004] In existing trolley construction, the lack of air or pollution inside the construction tunnel, or the large amount of construction dust, can affect the health of construction workers. Therefore, air ducts and corresponding air extraction or exhaust pumps, or combinations thereof, are installed inside the tunnel for air supply and dust removal. However, the tunnel trolley can obstruct the installation of the air ducts. Therefore, existing trolleys are equipped with air ducts. The installation method includes installing rigid pipes on the trolley's support, with non-rigid pipes inside the rigid pipes. The non-rigid pipes are provided to facilitate connection with upstream pump pipes or downstream pipes, and joints are provided at the ends of the non-rigid pipes.

[0005] However, in engineering practice, there are problems with the dimensional mismatch between rigid and non-rigid pipes, or the dimensional deformation of non-rigid pipes after prolonged use. Typically, constraint members are installed at the ends of the rigid pipe to roughly constrain the non-rigid pipe, at least to prevent it from wobbling. However, existing technologies have the following limitations:

[0006] Question 1: The installation of the restraint unit and its interference with the passage of vehicles below;

[0007] Issue 2: The cost of the constraint component installation platform is too high;

[0008] Question 3: There is an issue where constraint components cannot be precisely constrained;

[0009] Question 4: There is a problem with the difficulty of adjusting the constraint components;

[0010] There is a problem that requires the development of specialized software to automatically adjust the constraint components to adapt to the irregular deformation of non-rigid tubes. Summary of the Invention

[0011] To overcome the above problems, the present invention proposes a solution that addresses multiple problems simultaneously.

[0012] The technical solution adopted by this invention to solve its technical problem is: an integrated installation trolley for secondary lining steel reinforcement and waterproof fabric, with an installation frame at each end of the trolley, and an arc-shaped frame surrounding each installation frame. An installation unit is arranged between two arc-shaped frames. The installation unit includes a traction and placement mechanism and a railcar. The traction and placement mechanism includes a main beam, installation rod one, installation rod two, installation rod three, intermediate support, bottom beam, middle beam, top beam, hook, left support, and right support. The railcar includes a main body, main rollers, support parts, support arms, and auxiliary wheels. Each arc-shaped frame is equipped with a railcar, and the main beam is arranged between two railcars. The main body is provided with a support part and a main roller. The support part is supported on the arc-shaped frame. The main roller is in contact with the side of the arc-shaped frame. There is a support arm on each side of the main body. Each support arm has an auxiliary wheel at its end. The auxiliary wheel is in contact with the arc-shaped frame. The main beam is provided with a bottom beam, a middle beam and a top beam on one side. The other side is provided with a left support, a right support and a middle support. Hooks are provided on the bottom beam, the middle beam and the top beam. Mounting rod one is provided on the left support. Mounting rod three is provided on the right support. Mounting rod two is provided on the middle support. The distance between mounting rod two and the main beam is greater than the distance between mounting rod one and mounting rod three and the main beam.

[0013] The trolley also includes a rigid pipe, a constraint unit, a hoisting unit, and a suspended platform. The mounting frame includes a top plate, columns, and reinforcing inclined beams. The columns support the top plate, and the reinforcing inclined beams are located between the columns and the top plate. The rigid pipe is mounted on the mounting frame, and the rigid pipe contains an air duct. Independent constraint units are provided at both ends of the rigid pipe to constrain the air duct. The hoisting unit includes a first rod, a second rod, and a third rod. The constraint unit includes a first arc portion, a second arc portion, a third arc portion, a fourth arc portion, and a sliding rod.

[0014] An operating platform is provided on the outside of the column, and the basket is located between the operating platform and the reinforcing inclined beam. The first rod and the second rod are set below the surface of the top plate and extend vertically downward. The position of the second rod is fixed. A track is provided in the surface of the top plate. The first rod can move horizontally along the track. The reinforcing inclined beam includes an inner side that extends upward at an incline. The third rod is suspended on the inner side of the reinforcing inclined beam at a distance of one-fifth of the length of the inner side from the upper end. The first rod and the third rod can extend and retract. The relative angle of the third rod relative to the reinforcing inclined beam can also be adjusted.

[0015] The first and second arc sections are located at the top, and the third and fourth arc sections are located at the bottom. The four arc sections move relative to each other through sliding rods. The four arc sections and the sliding rods enclose the constraint unit to constrain the air duct. The lower end of the first rod is connected to the upper end of the fourth arc section, the lower end of the second rod is connected to the upper end of the first arc section, and the lower end of the third rod is connected to the upper end of the third arc section.

[0016] The length of the first rod is greater than that of the third rod, and the length of the third rod is greater than that of the second rod. The operator can adjust the angle of the third rod relative to the reinforcing inclined beam and adjust the extension and retraction of the third rod from inside the suspended basket. A connecting block is provided at the upper end of the first rod. The connecting block cooperates with the track to achieve movement. The operator can operate the connecting block from above the top plate to control the movement of the first rod.

[0017] Preferably, the first to fourth arc sections are rigid components.

[0018] Preferably, flexible pads are provided on the first to fourth arc portions.

[0019] Preferably, the column includes a left column and a right column.

[0020] Preferably, the reinforcing inclined beam includes a left reinforcing inclined beam and a right reinforcing inclined beam.

[0021] Preferably, the third rod is only installed on the left reinforcing diagonal beam.

[0022] Preferably, the rotation between the third rod and the reinforcing inclined beam can be locked by a locking element.

[0023] Preferably, the first to fourth arc portions are provided with a limiting structure to prevent the slide bar from disengaging.

[0024] Preferably, a guardrail is provided above the top plate.

[0025] Preferably, the suspended platform includes a base plate and a guardrail.

[0026] The beneficial effects and inventive points regarding the problems raised in the background art are as follows:

[0027] The first point of invention is that in the prior art, an installation and debugging platform or frame is set up to support the constraint unit below. The present invention uses a three-point hoisting structure to hoist the constraint unit and realizes the size adjustment of the constraint unit through the three-point hoisting structure, thereby reducing the cost of setting up an installation and debugging platform, avoiding the space occupation of the installation and debugging platform, ensuring sufficient space and good passage under the trolley, and allowing vehicles to pass under the trolley.

[0028] Second point of invention: As mentioned above, a hoisting structure is used, but the disadvantage of the hoisting structure is the working height. The higher the height, the more difficult it is to operate. The three-point hoisting structure in this invention includes three rods, which are in different positions, have different functions, and have different lengths.

[0029] Regarding the positions of the three rods, the first and second rods are suspended below the top plate, and the top plate includes a track. The first rod can move horizontally along the track, allowing workers to operate on the top plate. The horizontal movement of the first rod along the track avoids suspended work and has a high safety factor. The second rod is fixed below the top plate.

[0030] One reason the third rod is fixed to the inclined beam is that the area near the inclined beam and the column facilitates the installation of a suspended platform. An operating platform is located on the outside of the column, and the suspended platform is situated between the operating platform and the inclined beam. The suspended platform can selectively form a variable connection with the inclined beam and the column, allowing construction workers to operate the third rod from within the platform without obstructing vehicle passage below the trolley. If the third rod were also suspended from the top plate, its position would inevitably shift towards the center, encroaching on central space and consequently occupying vehicle passage space for workers.

[0031] The third point of the invention involves three rods with different functions. The constraint unit consists of four arcs, which can slide relative to each other to expand or shrink the enclosure size. However, the sliding between the four arcs is limited; that is, the sliding rods between the four arcs cannot be pulled out and always remain inside the arcs, thus forming a complete whole. The first and third rods are respectively connected to the two lower arcs for hoisting. The second rod is fixed in position to form a stable upper support. The second rod is connected to the upper two arcs slightly to the left of each other, that is, at the upper end point of the upper left arc, thus providing hoisting for the two upper arcs.

[0032] The first and third rods are telescopic, the third rod can swing, and the first rod can move horizontally. By moving horizontally and telescopically, the positions of the four arcs can be adjusted to adjust the constraint range of the constraint unit.

[0033] Fourthly, the third rod is fixed to the inclined beam, but not at the top of the inclined beam. Instead, it is fixed at one-fifth of the way up the long side of the inclined beam, thus forming a third rod that is shorter than the first rod. The reason for this is that we know that the deformation of a non-rigid tube is uncontrollable and will cause deformation of uncertain size and shape. If we design a set of sensors to monitor and know the amount of deformation just for such an additional function constraint, and then send it to the controller logic calculation to control the three rods to adjust their positions, the cost would be too high and not worth spending so much cost for an additional function.

[0034] In this invention, it is not just about adjusting the length of a rod, but also about adjusting the enclosure size of the constraint unit by adjusting the length of the rod. These two steps are not as simple as a 1+1=2 calculation. They require a more complex conversion and calculation process, which increases costs. Developing separate calculation software is also a considerable expense.

[0035] Therefore, we know that the longer the rod, the more difficult it is to operate manually, and the longer the rod, the greater its proportional deformation, which is not conducive to relatively accurate adjustment of the change.

[0036] Therefore, the fourth invention design incorporates a third rod that is shorter than the first rod. The shorter third rod allows workers to operate the short rod from inside the basket without having to operate the long rod. When adjusting, the first step involves adjusting the rod by extending and retracting the first and third rods themselves and by moving the first rod horizontally. The second step allows workers to swing the third rod from inside the basket to finely or accurately adjust the irregular deformation of the adaptive constraint. Attached Figure Description

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] Figure 1 This is a schematic diagram of the tunnel construction face of the present invention.

[0039] Figure 2 This is a diagram of the trolley frame of the present invention.

[0040] Figure 3 This is a 3D diagram of the ductwork layout and installation architecture of the present invention.

[0041] Figure 4 This is a schematic diagram of the constraint unit of the present invention.

[0042] Figure 5 This is a schematic diagram of the three-point hoisting motion relationship of the present invention.

[0043] Figure 6 This is a three-dimensional view of the trolley of the present invention.

[0044] Figure 7 This is a front view of the fabric traction mechanism of the present invention.

[0045] Figure 8 This is a top view of the fabric traction mechanism of the present invention.

[0046] Figure 9 This is a side view of the fabric traction mechanism of the present invention.

[0047] The reference numerals in the figure are as follows:

[0048] 1. Mounting frame, 2. Top plate, 3. Column, 4. Reinforcing diagonal beam, 5. Restraint unit, 6. First rod, 7. Third rod, 8. Second rod, 9. Railcar, 10. Suspended platform, 11. First arc section, 12. Second arc section, 13. Third arc section, 14. Fourth arc section, 15. Inner side, 16. Sliding rod, 17. Operating platform, 18. Flexible pad, 19. Horizontal column, 20. Moving part, 21. Support leg, 22. Ladder, 23. Fence, 24. Ladder platform assembly, 25. Top Platform assembly, 26. Arc frame, 27. Traction fabric mechanism, 28. Support and positioning mechanism, 29. Control device, 30. Connecting beam, 31. Main beam, 32. Main body, 33. Main roller, 34. Support part, 35. Mounting rod one, 36. Mounting rod two, 37. Mounting rod three, 38. Support arm, 39. Auxiliary wheel, 40. Intermediate bracket, 41. Bottom beam, 42. Middle beam, 43. Top beam, 44. Hook, 45. Left bracket, 46. Right bracket, 47. Waterproof fabric roll. Detailed Implementation

[0049] As shown in the figure: A trolley for integrated installation of secondary lining steel reinforcement and waterproof fabric. The trolley has an installation frame at each end, and an arc-shaped frame surrounding each installation frame. An installation unit is located between two arc-shaped frames. The installation unit includes a traction and placement mechanism and a railcar. The traction and placement mechanism includes a main beam, installation rod one, installation rod two, installation rod three, intermediate support, bottom beam, middle beam, top beam, hook, left support, and right support. The railcar includes a main body, main rollers, a support section, a support arm, and auxiliary wheels. Each arc-shaped frame is equipped with a railcar, and the main beam is located between two railcars. The main body contains... The support part is supported on the arc-shaped frame, and the main roller is in contact with the side of the arc-shaped frame. Each side of the main body is provided with a support arm, and each support arm is provided with an auxiliary wheel at its end. The auxiliary wheel is in contact with the arc-shaped frame. One side of the main beam is provided with a bottom beam, a middle beam, and an upper beam, and the other side is provided with a left support, a right support, and a middle support. Hooks are provided on the bottom beam, the middle beam, and the upper beam. Mounting rod one is provided on the left support, mounting rod three is provided on the right support, and mounting rod two is provided on the middle support. The distance between mounting rod two and the main beam is greater than the distance between mounting rod one and mounting rod three and the main beam.

[0050] The trolley also includes a rigid pipe, a constraint unit, a hoisting unit, and a suspended platform. The mounting frame includes a top plate, columns, and reinforcing inclined beams. The columns support the top plate, and the reinforcing inclined beams are located between the columns and the top plate. The rigid pipe is mounted on the mounting frame, and the rigid pipe contains an air duct. Independent constraint units are provided at both ends of the rigid pipe to constrain the air duct. The hoisting unit includes a first rod, a second rod, and a third rod. The constraint unit includes a first arc portion, a second arc portion, a third arc portion, a fourth arc portion, and a sliding rod.

[0051] An operating platform is provided on the outside of the column, and the basket is located between the operating platform and the reinforcing inclined beam. The first rod and the second rod are set below the surface of the top plate and extend vertically downward. The position of the second rod is fixed. A track is provided in the surface of the top plate. The first rod can move horizontally along the track. The reinforcing inclined beam includes an inner side that extends upward at an incline. The third rod is suspended on the inner side of the reinforcing inclined beam at a distance of one-fifth of the length of the inner side from the upper end. The first rod and the third rod can extend and retract. The relative angle of the third rod relative to the reinforcing inclined beam can also be adjusted.

[0052] The first and second arc sections are located at the top, and the third and fourth arc sections are located at the bottom. The four arc sections move relative to each other through sliding rods. The four arc sections and the sliding rods enclose the constraint unit to constrain the air duct. The lower end of the first rod is connected to the upper end of the fourth arc section, the lower end of the second rod is connected to the upper end of the first arc section, and the lower end of the third rod is connected to the upper end of the third arc section.

[0053] The length of the first rod is greater than that of the third rod, and the length of the third rod is greater than that of the second rod. The operator can adjust the angle of the third rod relative to the reinforcing inclined beam and adjust the extension and retraction of the third rod from inside the suspended basket. A connecting block is provided at the upper end of the first rod. The connecting block cooperates with the track to achieve movement. The operator can operate the connecting block from above the top plate to control the movement of the first rod.

[0054] As shown in the figure: the first to fourth arc sections are rigid components. Flexible pads are provided on the first to fourth arc sections. The uprights include a left upright and a right upright. The reinforcing inclined beams include a left reinforcing inclined beam and a right reinforcing inclined beam. The third rod is only installed on the left reinforcing inclined beam. The rotation between the third rod and the reinforcing inclined beam can be locked by a locking device. A limiting structure is provided inside the first to fourth arc sections to prevent the sliding rod from disengaging. A guardrail is provided above the top plate. The suspended platform includes a base plate and a guardrail.

[0055] The above detailed description is a specific description of feasible embodiments of the present invention. These embodiments are not intended to limit the patent scope of the present invention. All equivalent implementations or modifications that do not depart from the present invention should be included in the patent scope of this case.

Claims

1. A trolley for integrated installation of secondary lining steel reinforcement and waterproof fabric, characterized in that: Each end of the trolley has a mounting frame, and each mounting frame is surrounded by an arc-shaped frame. An installation unit is located between two arc-shaped frames. The installation unit includes a traction fabric-laying mechanism and a railcar. The traction fabric-laying mechanism includes a main beam, mounting rod one, mounting rod two, mounting rod three, an intermediate support, a bottom beam, a middle beam, an upper beam, a hook, a left support, and a right support. The railcar includes a main body, main rollers, a support section, a support arm, and auxiliary wheels. Each arc-shaped frame has a railcar mounted on it, and the main beam is located between two railcars. The main body contains a support section and main rollers. The support is on the arc-shaped frame, and the main roller contacts the side of the arc-shaped frame. Each side of the main body is provided with a support arm, and each support arm is provided with an auxiliary wheel at its end. The auxiliary wheel contacts the arc-shaped frame. One side of the main beam is provided with a bottom beam, a middle beam, and an upper beam, and the other side is provided with a left support, a right support, and a middle support. Hooks are provided on the bottom beam, the middle beam, and the upper beam. Mounting rod one is provided on the left support, mounting rod three is provided on the right support, and mounting rod two is provided on the middle support. The distance between mounting rod two and the main beam is greater than the distance between mounting rod one and mounting rod three and the main beam. The trolley also includes a rigid pipe, a constraint unit, a hoisting unit, and a suspended platform. The mounting frame includes a top plate, columns, and reinforcing inclined beams. The columns support the top plate, and the reinforcing inclined beams are located between the columns and the top plate. The rigid pipe is mounted on the mounting frame, and the rigid pipe contains an air duct. Independent constraint units are provided at both ends of the rigid pipe to constrain the air duct. The hoisting unit includes a first rod, a second rod, and a third rod. The constraint unit includes a first arc portion, a second arc portion, a third arc portion, a fourth arc portion, and a sliding rod. An operating platform is provided on the outside of the column, and the basket is located between the operating platform and the reinforcing inclined beam. The first rod and the second rod are set below the surface of the top plate and extend vertically downward. The position of the second rod is fixed. A track is provided in the surface of the top plate. The first rod can move horizontally along the track. The reinforcing inclined beam includes an inner side that extends upward at an incline. The third rod is suspended on the inner side of the reinforcing inclined beam at a distance of one-fifth of the length of the inner side from the upper end. The first rod and the third rod can extend and retract. The angle of the third rod relative to the reinforcing inclined beam can also be adjusted. The first and second arc sections are located at the top, and the third and fourth arc sections are located at the bottom. The four arc sections move relative to each other through sliding rods. The four arc sections and the sliding rods enclose the constraint unit to constrain the air duct. The lower end of the first rod is connected to the upper end of the fourth arc section, the lower end of the second rod is connected to the upper end of the first arc section, and the lower end of the third rod is connected to the upper end of the third arc section. The length of the first rod is greater than that of the third rod, and the length of the third rod is greater than that of the second rod. The operator can adjust the angle of the third rod relative to the reinforcing inclined beam and adjust the extension and retraction of the third rod from inside the suspended basket. A connecting block is provided at the upper end of the first rod. The connecting block cooperates with the track to achieve movement. The operator can operate the connecting block from above the top plate to control the movement of the first rod.

2. The integrated installation trolley for secondary lining steel reinforcement and waterproof fabric according to claim 1, characterized in that: The first to fourth arc sections are rigid components.

3. The integrated installation trolley for secondary lining steel reinforcement and waterproof fabric according to claim 2, characterized in that: Flexible pads are provided on the first to fourth arc sections.

4. The integrated installation trolley for secondary lining steel reinforcement and waterproof fabric according to claim 1, characterized in that: The pillars include a left pillar and a right pillar.

5. The integrated installation trolley for secondary lining steel reinforcement and waterproof fabric according to claim 4, characterized in that: The reinforcing inclined beam includes a left reinforcing inclined beam and a right reinforcing inclined beam.

6. The integrated installation trolley for secondary lining steel reinforcement and waterproof fabric according to claim 5, characterized in that: The third rod is only installed on the left reinforcing diagonal beam.

7. The integrated installation trolley for secondary lining steel reinforcement and waterproof fabric according to claim 1, characterized in that: The rotation between the third rod and the reinforcing inclined beam can be locked by a locking device.

8. The integrated installation trolley for secondary lining steel reinforcement and waterproof fabric according to claim 1, characterized in that: The first to fourth arc sections are equipped with a limiting structure to prevent the slide rod from detaching.

9. The integrated installation trolley for secondary lining steel reinforcement and waterproof fabric according to claim 1, characterized in that: A guardrail is installed above the top plate.

10. The integrated installation trolley for secondary lining steel reinforcement and waterproof fabric according to claim 1, characterized in that: The suspended platform includes a base plate and guardrails.