Two-lining steel bar waterproof cloth integrated laying trolley

The constraint unit with a three-point hoisting structure solved the problem of installing secondary lining steel bars and waterproof membranes in tunnel construction, improved installation accuracy and efficiency, reduced costs, and ensured construction safety and vehicle passability.

CN121345583AActive Publication Date: 2026-01-16RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD +1
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Patent Information

Application Number
CN202511688404.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-18
Publication Date
2026-01-16
Estimated Expiration
2045-11-18

AI Technical Summary

Technical Problem

In existing technologies, the installation of secondary lining reinforcement and waterproof membrane in tunnel construction is difficult, inefficient, and lacks precision. Furthermore, the sizes of rigid and non-rigid pipes are incompatible, the cost of the restraint installation platform is high, and the adjustment is difficult, which affects the health of construction workers and the passability of vehicles.

Method used

The constraint unit adopts a three-point suspension structure. Through three rods (first rod, second rod, and third rod) with different positions and lengths, combined with arc-shaped components, the adjustable constraint of the air duct is achieved, reducing the cost of the installation and commissioning platform. It can also be precisely adjusted within the suspended basket to adapt to the deformation of non-rigid pipes.

Benefits of technology

It improved installation accuracy and efficiency, reduced the cost of the installation and commissioning platform, ensured the health of construction personnel, guaranteed vehicle passability, and simplified the adjustment process of the restraints.

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Abstract

According to the integrated laying trolley for the secondary lining steel bar waterproof cloth, the two ends of the trolley are each provided with a mounting frame, the periphery of each mounting frame is provided with an arc-shaped frame, and a mounting unit is arranged between the two arc-shaped frames and comprises a traction cloth mechanism and a rail car; the traction material distribution mechanism comprises a main beam, a first mounting rod, a second mounting rod, a third mounting rod, a middle support, a bottom beam, a middle beam, an upper beam, a hook, a left support and a right support, each rail car comprises a main body, a main rolling wheel, a supporting part, a supporting arm and an auxiliary wheel, each arc-shaped frame is provided with one rail car, and the main beam is arranged between the two rail cars.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of tunnel construction, in particular to a two-lining steel bar and waterproof cloth integrated laying trolley. BACKGROUND

[0002] Single-line small-section tunnels belong to known railway tunnels, and when installing two-lining steel bars and waterproof boards in a traditional manual manner, problems such as great difficulty in operation, low efficiency, and difficulty in effectively guaranteeing installation precision are faced. Moreover, the special environment of railway construction poses a severe challenge to the physical health of construction workers under conditions of high altitude and low oxygen concentration, and therefore the demand for automatic installation of two-lining steel bars and waterproof boards is particularly urgent.

[0003] In engineering practice, the following problems exist: When the trolley of the prior art is constructed, the health of the construction workers is affected due to the lack of air or the pollution of the air inside the construction tunnel or the large amount of construction dust, and therefore a wind pipe and a corresponding air suction pump or air exhaust pump or a combination thereof are provided in the tunnel for air supply and dust removal. However, the installation of the wind pipe is obstructed by the trolley, and therefore the trolley of the prior art is provided with a wind pipe; the installation mode includes a hard pipe mounted on the support of the trolley, and a non-rigid pipe is accommodated in the hard pipe. The non-rigid pipe is provided to facilitate the connection with the pump pipe upstream or the downstream pipe, and a connector is provided at the end of the non-rigid pipe.

[0004] However, in engineering practice, there are problems such as the non-adaptation of the size of the hard pipe and the non-rigid pipe, or the deformation of the size of the non-rigid pipe after long-term use. Generally, a restraint member is provided at the end of the hard pipe to roughly constrain the non-rigid pipe, at least to avoid shaking. However, the prior art has the following problems: Problem one: installation problem of the restraint unit, and interference problem with the passing of the vehicle below; Problem two: high cost of the installation platform of the restraint member; Problem three: the restraint member cannot accurately constrain; Problem four: difficulty in adjusting the restraint member; The development of special software is required for the automatic adjustment of the restraint member to adapt to the irregular deformation of the non-rigid pipe. SUMMARY

[0005] In order to overcome the above problems, the present application proposes a solution that simultaneously solves the above problems.

[0006] The technical scheme adopted by the present application to solve its technical problems is: a two-liner steel bar waterproof cloth integrated laying trolley, each end of the trolley is provided with an installation frame, each installation frame is provided with an arc-shaped frame outside, an installation unit is arranged between the two arc-shaped frames, the installation unit comprises a traction material mechanism and a track vehicle, the traction material mechanism comprises a main beam, an installation rod one, an installation rod two, an installation rod three, an intermediate support, a bottom beam, a middle beam, an upper beam, a hook, a left support and a right support, the track vehicle comprises a main body, a main roller, a support part, a support arm and an auxiliary wheel, the track vehicle is arranged on each arc-shaped frame, the main beam is arranged between the two track vehicles, the support part and the main roller are arranged in the main body, the support part is supported on the arc-shaped frame, the main roller is in contact with the side surface of the arc-shaped frame, each side of the main body is provided with a support arm, the end of each support arm is provided with an auxiliary wheel, the auxiliary wheel is in contact with the arc-shaped frame, the bottom beam, the middle beam and the upper beam are arranged on one side of the main beam, and the left support, the right support and the intermediate support are arranged on the other side of the main beam, the hook is arranged on the bottom beam, the middle beam and the upper beam, the installation rod one is arranged on the left support, the installation rod three is arranged on the right support, and the installation rod two is arranged on the intermediate support, the distance between the installation rod two and the main beam is greater than the distance between the installation rod one and the main beam and the distance between the installation rod three and the main beam; The trolley further comprises a hard pipe, a constraint unit, a hoisting unit and a hanging basket, wherein the installation frame comprises a top plate, a stand column and a reinforcing diagonal beam, the stand column supports the top plate, and the reinforcing diagonal beam is located between the stand column and the top plate; the hard pipe is mounted on the installation frame, the hard pipe contains an air pipe, and independent constraint units are arranged at both ends of the hard pipe to constrain the air pipe; the hoisting unit comprises a first rod, a second rod and a third rod, and the constraint unit comprises a first arc part, a second arc part, a third arc part, a fourth arc part and a sliding rod; The stand column is provided with an operation platform outside, the hanging basket is located between the operation platform and the reinforcing diagonal beam, the first rod and the second rod are arranged vertically downward below the plate surface of the top plate and extend downward, the position of the second rod is fixed, the plate surface of the top plate is provided with a track, the first rod can move horizontally along the track, the reinforcing diagonal beam comprises an inner side surface that extends upward obliquely, the third rod is hung on the inner side surface of the reinforcing diagonal beam at a position within one-fifth of the length of the upper end, and the first rod and the third rod can move telescopically, and the third rod can also adjust the relative angle with respect to the reinforcing diagonal beam; The first arc part and the second arc part are located above, and the third arc part and the fourth arc part are located below, the relative motion between the four arc parts is realized through the sliding rod, the four arc parts and the sliding rod surround to form the constraint unit to constrain the air pipe, the lower end of the first rod is connected to the upper end of the fourth arc part, the lower end of the second rod is connected to the upper end of the first arc part, and the lower end of the third rod is connected to the upper end of the third arc part; 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. Preferably, the first to fourth arc sections are rigid components.

[0007] Preferably, flexible pads are provided on the first to fourth arc portions.

[0008] Preferably, the column includes a left column and a right column. Preferably, the reinforcing inclined beam includes a left reinforcing inclined beam and a right reinforcing inclined beam.

[0009] Preferably, the third rod is only installed on the left reinforcing diagonal beam.

[0010] Preferably, the rotation between the third rod and the reinforcing inclined beam can be locked by a locking element.

[0011] Preferably, the first to fourth arc portions are provided with a limiting structure to prevent the slide bar from disengaging.

[0012] Preferably, a guardrail is provided above the top plate.

[0013] Preferably, the suspended platform includes a base plate and a guardrail. The beneficial effects and inventive points regarding the problems raised in the background art are as follows: 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the tunnel construction face of the present invention.

[0025] Figure 2 This is a diagram of the trolley frame of the present invention.

[0026] Figure 3 This is a 3D diagram of the ductwork layout and installation architecture of the present invention. Figure 4 This is a schematic diagram of the constraint unit of the present invention. Figure 5 This is a schematic diagram of the three-point hoisting motion relationship of the present invention. Figure 6 This is a three-dimensional view of the trolley of the present invention. Figure 7 This is a front view of the fabric traction mechanism of the present invention. Figure 8 This is a top view of the fabric traction mechanism of the present invention. Figure 9 This is a side view of the fabric traction mechanism of the present invention. The reference numerals in the figure are as follows: 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 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. 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 relative 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. 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. 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 the traction fabric-laying mechanism and the 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, and the main beam is located between two railcars. The main body contains a support section and main rollers. The support is supported on the arc-shaped frame. The main roller contacts the side of the arc-shaped frame. Each side of the main body is provided with a support arm. Each support arm has 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. 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. 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 relative 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.

Citation Information

Patent Citations

  • Multifunctional steel trolley capable of being moved and lifted and method for mounting top arch arc plate steel cover

    CN105888706A

  • Arrangement for the assembly of three-chord steel lattice girders in tunnel construction with waterproof membrane and / or geotextile laying scaffold trolley

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