Rebar lifting, feeding and waterproof board installing integrated trolley

Abstract

The application discloses a steel bar lifting and waterproof board mounting integrated trolley, which comprises a steel structure support rack, a ring support, a steel bar lifting and feeding system and a waterproof board mounting system are arranged on the rack; the steel bar lifting and feeding system comprises a lifting mechanism and a conveying mechanism, the lifting mechanism is used for lifting the ring steel bar to the upper part of the trolley, the lifting mechanism comprises a guide rail and a lifting frame which moves up and down along the guide rail, a transfer mechanism is arranged on the rack between the upper parts of the two guide rails and is used for transferring the ring steel bar on the lifting frame to the conveying mechanism; the conveying mechanism is used for conveying the ring steel bar to the direction of the other end of the trolley; the waterproof board mounting system comprises a supporting rod, a cross rod, an arc-shaped guide plate and a walking mechanism. The trolley integrates the functions of steel bar feeding and waterproof board laying, and solves the problems of the existing technology, such as the non-reusable operation rack, the large number of construction machines in the hole, the large labor intensity of workers, the serious material waste, and the high cost.

Description

Technical Field

[0001] This invention relates to the field of tunnel secondary lining construction technology, specifically to an integrated trolley for lifting and feeding steel bars and installing waterproof membrane. Background Technology

[0002] After the initial support construction of the tunnel, the initial lining is fully stressed. The secondary lining structure is then constructed only after the surrounding rock deformation stabilizes and the initial support is fully stressed. During this process, a waterproof membrane needs to be laid circumferentially on the tunnel wall first, followed by the construction of the reinforcement layer, including the feeding, binding, positioning, and welding of circumferential and longitudinal reinforcement. Traditional tunnel construction commonly uses manual labor with simple scaffolds for waterproof membrane laying and reinforcement feeding. This method has low mechanization and several significant problems: scaffolds used for different processes cannot be reused; two different sets of trolleys are required for waterproof membrane laying and reinforcement feeding, resulting in a large number of construction machines, manual laborers, and processes within the tunnel, leading to high labor intensity for workers, significant material waste, and high costs.

[0003] The installation of the waterproofing membrane and the reinforcement work before the secondary lining are carried out along the tunnel wall. During the installation of the waterproofing membrane, multiple workers are required to operate on scaffolding. Because the membrane is heavy, manual installation is labor-intensive and slow, and can result in unevenness, wrinkles, and insufficient slack in the membrane, leading to problems such as voids behind the lining. During reinforcement work, there are issues with the circumferential and longitudinal reinforcement bars being arranged irregularly and unevenly, resulting in inconsistent binding distances and affecting the quality of the reinforcement layer. Summary of the Invention

[0004] This invention provides an integrated trolley for lifting and feeding steel bars and installing waterproof membranes. The technical problems to be solved are that the work platform used for laying waterproof membranes and feeding steel bars before the secondary lining construction of tunnels cannot be reused, there are many construction machines in the tunnel, the labor intensity of workers is high, and there is serious waste of materials and high cost. In addition, the uneven and irregular arrangement of steel bars affects the quality of the steel bar layer, and the laying of waterproof membranes is prone to wrinkles and unevenness.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: Design a trolley that integrates rebar lifting and loading with waterproofing membrane installation, including a steel structure support frame with circumferential supports on the frame; the frame is also equipped with a rebar lifting and loading system and a waterproofing membrane installation system.

[0006] The rebar lifting and feeding system includes a lifting mechanism and a conveying mechanism. The lifting mechanism is used to lift the circumferential rebar to the upper part of the trolley. The lifting mechanism includes a pair of vertical guide rails set at one end of the platform, and a lifting frame installed on the two side guide rails and moving up and down along the guide rails. The lifting frame includes a vertical guide plate, and a horizontal support plate is set on the outer side of the guide plate. The support plate is provided with lifting tooth grooves for placing the circumferential rebar. A lifting drive mechanism is set on the inner side of the guide plate to drive it to move up and down along the guide rails. A transfer mechanism is set on the platform between the upper parts of the two guide rails to transfer the circumferential rebar on the lifting frame to the conveying mechanism. The conveying mechanism is set on the top of the platform to convey the circumferential rebar to the other end of the platform. The waterproof membrane installation system includes a support rod disposed between the circumferential supports at both ends of the platform. A crossbar for hanging the waterproof membrane roll is provided on one side of the support rod, and an arc-shaped guide plate is provided on the upper part of the other side of the support rod. Both ends of the support rod are respectively mounted on the circumferential supports through a traveling mechanism, which is used to drive the support rod to move along the circumferential supports.

[0007] In the above technical solution, the rebar lifting and loading system uses a lifting frame to lift the circumferential rebar from the lower part of the trolley to the upper part. A transfer mechanism then moves the circumferential rebar to a conveying mechanism on top of the trolley. The conveying mechanism then moves the circumferential rebar towards the other end of the trolley until all the circumferential rebar on top of the trolley is placed, thus completing the loading of the circumferential rebar in this section. By setting up a waterproof membrane installation system, a traveling mechanism drives the support rod and waterproof membrane roll to move along the circumferential support. During the movement, a guide plate presses the waterproof membrane against the laying surface, ensuring the waterproof membrane adheres to the surface and guarantees the flatness of the waterproof membrane. After one section of waterproof membrane is fixedly installed, it moves to the next position for the next section. This segmented laying method ensures the quality of the waterproof membrane laying and improves laying efficiency.

[0008] Preferably, the conveying mechanism includes a push plate located at the middle of the top of the platform. The push plates are arranged in two parallel rows, with each row extending from one end of the platform to the other. Between the two rows of push plates, there are two rows of auxiliary plates parallel to the push plates, with auxiliary tooth grooves formed on the auxiliary plates. Conveying tooth grooves are formed on the upper part of the push plates. An intermittent stepping mechanism is provided at the lower part of each push plate. The intermittent stepping mechanism drives the push plate to reciprocate, which is used to move the circumferential steel bars sent by the transfer mechanism sequentially towards the other end of the platform. Each time, the circumferential steel bar moves forward by one tooth groove.

[0009] Preferably, the intermittent stepping mechanism includes two sets of rocker propulsion devices disposed under each propulsion plate. Each rocker propulsion device includes a propulsion motor mounted on a frame. The output end of the propulsion motor is connected to a rotating plate. The rotating plate is sequentially rotatably connected to a crank rocker and a driven plate. The end of the driven plate is rotatably connected to a fixed plate disposed on the frame. The turning point of the crank rocker is rotatably connected to an ear plate disposed on the propulsion plate. A connecting rod is also disposed between the two sets of rocker propulsion devices. The two ends of the connecting rod are rotatably connected to the connection points of the rotating plate and the crank rocker, respectively.

[0010] The conveying mechanism moves the circumferential reinforcing bars forward one tooth at a time by moving the push plate until all auxiliary tooth slots are filled with circumferential reinforcing bars. This achieves automatic conveying of circumferential reinforcing bars, which can effectively improve the feeding efficiency of circumferential reinforcing bars and reduce the labor intensity of workers.

[0011] Preferably, the ferry mechanism includes a ferry plate and a rotating rod mounted on a platform between the upper parts of two guide rails. One end of the rotating rod is rotatably connected to the platform, and the other end is correspondingly connected to a ferry motor fixed on the platform. The top of the ferry plate has ferry tooth grooves, and the bottom of the ferry plate is hinged with parallel main support rods and auxiliary support rods. The bottom end of the main support rod is connected to the middle of the rotating rod. A connecting plate is provided between the main support rod and the auxiliary support rod. Both ends of the connecting plate are rotatably connected to the main support rod and the auxiliary support rod, respectively. An auxiliary motor is provided at the connection position between the auxiliary support rod and the connecting plate. The ferry plate, the main support rod, the auxiliary support rod, and the connecting plate form a parallel four-bar linkage structure, which is used to lift the lifting mechanism to the circumferential steel bars on the upper part of the platform and move them to the conveying mechanism.

[0012] When the transfer mechanism is not in operation (initial position), the transfer motor and auxiliary motor drive the transfer plate to rotate and retract downwards, without affecting the lifting mechanism's upward movement of the circumferential reinforcing bars. When the lifting mechanism moves the circumferential reinforcing bars to the upper part of the platform, the transfer motor and auxiliary motor drive the transfer plate to rotate upwards. When the transfer plate rotates to a position parallel to the support plates on both sides, the transfer teeth correspond one-to-one with the lifting teeth on both sides, and the circumferential reinforcing bars are placed in the corresponding transfer teeth. The transfer plate then moves the circumferential reinforcing bars to the direction of the conveying mechanism. After reaching the position of the conveying mechanism, the push plate moves the circumferential reinforcing bars to the rear end. Once all the circumferential reinforcing bars on the transfer plate have been moved to the push plate, the transfer plate returns to its initial position, waiting for the lifting mechanism to bring the next batch of circumferential reinforcing bars to the upper part of the platform. This process is repeated to transfer the circumferential reinforcing bars from the lifting mechanism to the conveying mechanism.

[0013] Preferably, the transfer mechanism includes a translation drive mechanism disposed between two rows of push plates. A movable plate is disposed at the front end of the telescopic part of the translation drive mechanism. A groove is formed on the movable plate, and a telescopic plate is installed in the groove. A transfer tooth groove is formed on the telescopic plate. The telescopic plate is hydraulically driven and moves up and down in the groove. When the lifting frame drives the circumferential reinforcing bar to the top position of the platform, the telescopic part of the translation drive mechanism extends, driving the movable plate to move between the two lifting frames and to a position lower than the position of the circumferential reinforcing bar. The telescopic plate is hydraulically driven to push upward, so that the circumferential reinforcing bar is correspondingly engaged in the transfer tooth groove. At this time, the lifting frame can move down, the telescopic part of the translation drive mechanism retracts, so that the movable plate drives the circumferential reinforcing bar back to the top of the platform, and the telescopic plate retracts back into the groove, so that the circumferential reinforcing bar falls into the corresponding transfer tooth groove on the push plate.

[0014] This translational transfer mechanism uses a translational drive mechanism (which can be hydraulically driven) to move a movable plate. When the lifting mechanism raises the circumferential reinforcing bar to the top of the trolley, the movable plate moves out and is positioned below the circumferential reinforcing bar. A telescopic plate within the plate pushes upwards, and the circumferential reinforcing bar engages in the transfer groove on it. At this point, the lifting mechanism can move downwards, and the telescopic part of the translational drive mechanism retracts the movable plate, moving the circumferential reinforcing bar above the push plate. Then, the telescopic plate retracts, causing the circumferential reinforcing bar to fall into the corresponding transfer groove on the push plate, which then moves the circumferential reinforcing bar towards the rear end. The movable plate and the translational drive mechanism can be configured as two parallel sets to improve the supporting force of the movable plate on the circumferential reinforcing bar.

[0015] Both of the different transfer mechanisms can realize the movement of circumferential reinforcing bars from the lifting mechanism to the conveying mechanism. The appropriate mechanism can be selected according to the needs during implementation.

[0016] Preferably, the rebar lifting and feeding system further includes a pressing mechanism. The pressing mechanism includes vertical grooves respectively opened on the outer side of the guide plate. A lifting device is installed in the groove. A pressing drive motor is installed at the top of the telescopic part of the lifting device. The output end of the pressing drive motor is connected to a pressing rod. The pressing rod rotates under the drive of the pressing drive motor. When the pressing rod rotates to the horizontal direction, it is located above the support plate and parallel to the support plate. When the pressing rod rotates to the vertical direction, the pressing drive motor moves down along the groove under the drive of the lifting device, so that the pressing rod is retracted into the groove.

[0017] The pressing mechanism can work in conjunction with the swing mechanism to apply downward pressure to both sides of the circumferential reinforcing bar, causing the circumferential reinforcing bar to deform to a certain degree, which facilitates the subsequent positioning and binding of the reinforcing bar.

[0018] Preferably, the walking mechanism includes a side plate connected to the upper part of the support rod, and the circumferential support has an "I"-shaped cross-section. A walking wheel is installed in the space formed between the lower part of the side plate and the recessed position on the side of the circumferential support. A walking drive motor corresponding to and connected to the walking wheel is installed on the side plate. The walking mechanism drives the waterproof membrane to move along the circumferential support, enabling segmented fixed installation of the waterproof membrane, improving the laying efficiency of the waterproof membrane, and reducing the labor intensity of workers.

[0019] Preferably, the guide rail has an "I"-shaped cross-section, and a rack is provided along its length on the inner side of the guide rail. The lifting drive mechanism includes mounting plates disposed opposite each other on the two sides of the guide plate, with the two mounting plates located on opposite sides of the guide rail. A gear is provided on the inner side of the mounting plate, and the gear meshes with the rack on the guide rail. A lifting drive motor for driving the gear to rotate is provided on the outer side of the mounting plate. The lifting mechanism realizes the up-and-down movement of the lifting frame along the guide rail through the cooperation of the gear and rack.

[0020] Preferably, multiple guide plates are arranged side by side, and the bottom of the guide plate is hinged to the support rod via a torsion spring. The guide plate is hinged to the support rod via the torsion spring, which allows the guide plate to rotate within a certain angle. Under the action of the torsion spring, it moves along the laying surface, ensuring the adhesion between the waterproof membrane and the laying surface.

[0021] Preferably, multiple sets of longitudinal steel bar installation mechanisms are arranged circumferentially between adjacent circumferential supports. The longitudinal steel bar installation mechanism includes a base plate, an installation groove is provided in the middle of the base plate, a wall plate is provided in the installation groove, and a slot for placing longitudinal steel bars is provided along the upper length direction of the wall plate. The wall plate is hydraulically driven and moves up and down in the installation groove to lift the longitudinal steel bars to the position of the circumferential steel bars and assist in binding.

[0022] The longitudinal reinforcement installation mechanism can realize the feeding and accurate positioning of longitudinal reinforcement, assist in subsequent reinforcement binding and welding, and improve the installation quality of the reinforcement layer.

[0023] Preferably, auxiliary plates parallel to the slots are provided on both sides of the base plate, and auxiliary toothed grooves are provided on the auxiliary plates. The positions of the auxiliary toothed grooves correspond one-to-one with the auxiliary toothed grooves in the conveying mechanism.

[0024] Preferably, a set of longitudinal steel bar installation mechanism is also provided between the two rows of push plates at the top of the platform, specifically located between the two sets of auxiliary plates at the top of the platform.

[0025] The beneficial effects of this invention are as follows: The trolley in this invention integrates the functions of steel bar feeding and waterproof membrane laying, which solves the problems of non-reusable work platforms, numerous construction machines in the tunnel, high labor intensity for workers, serious material waste, and high cost in the existing technology for waterproof membrane laying and steel bar feeding processes before tunnel secondary lining construction. It has the advantages of multi-functionality, reduced labor intensity, reduced number of workers, increased steel bar feeding speed, and improved flatness of waterproof membrane laying.

[0026] By setting up a rebar lifting and feeding system, circumferential rebar can be fed. The lifting mechanism can move the circumferential rebar from the lower part of the trolley to the upper part. By setting up a transfer mechanism, the circumferential rebar lifted by the lifting mechanism to the upper part of the platform can be transferred to the conveying mechanism. The conveying mechanism uses a pusher plate to move the circumferential rebar to the other end of the trolley in sequence. The conveying grooves on the pusher plate can achieve uniform arrangement and distribution of the circumferential rebar. By setting up a longitudinal rebar installation mechanism, longitudinal rebar can be fed, and it is convenient to accurately position the binding position of longitudinal and circumferential rebar. It can effectively control the rebar binding spacing and improve the construction quality of the rebar layer.

[0027] By setting up a waterproof membrane installation system, a traveling mechanism drives the support rods and crossbars to move. The waterproof membrane roll on the crossbars releases the waterproof membrane during the movement. The guide plate presses the waterproof membrane against the tunnel wall, ensuring that the waterproof membrane is in close contact with the surface to be laid inside the tunnel. After fixing, the waterproof membrane is laid flat, solving the problems of wrinkles, unevenness, and voids behind the membrane that are easy to occur during the installation of waterproof membranes in existing technologies. This improves the quality of waterproof membrane installation and increases laying efficiency.

[0028] The steel bar lifting and feeding system and waterproof membrane installation system in this invention are easy to operate and highly automated. They can reduce the labor intensity and number of workers in the secondary lining construction process, improve the efficiency of steel bar feeding, binding and waterproof membrane installation, further enhance the level of mechanized construction of large-section tunnels in high-speed railways, and improve the overall capability of tunnel construction. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural schematic diagram of the integrated trolley for lifting and feeding steel bars and installing waterproof membrane according to the present invention; Figure 2 This is a side view of the integrated trolley for lifting and feeding steel bars and installing waterproof membrane according to the present invention. Figure 3 This is a schematic diagram of the end structure of the integrated trolley for lifting and feeding steel bars and installing waterproof membrane of the present invention; Figure 4 This is a partial structural diagram of the lifting mechanism; Figure 5 yes Figure 1 Enlarged view of part A in the image; Figure 6 Schematic diagram of the end structure of the waterproof membrane installation system; Figure 7 This is a side view of the conveyor mechanism. Figure 8 This is a schematic diagram of the shuttle mechanism structure in one embodiment; Figure 9 yes Figure 8 A schematic diagram of the initial state structure of the shuttle mechanism in the diagram; Figure 10 This is a schematic diagram of the ferry mechanism structure in another embodiment.

[0030] The diagram labels are as follows: 1. Frame; 2. Circumferential support; 3. Guide rail; 4. Lifting frame; 5. Guide plate; 6. Support plate; 7. Lifting tooth groove; 8. Support rod; 9. Crossbar; 10. Guide plate; 11. Push plate; 12. Transmission tooth groove; 13. Rocker push device; 14. Rotating plate; 15. Crank rocker; 16. Driven plate; 17. Fixed plate; 18. Ear plate; 19. Connecting rod; 20. Rotating rod; 21. Main support rod; 22. Secondary support rod; 23. Connecting plate; 24. Swing plate; 25. Swing tooth groove; 26. Translation drive mechanism; 27. Moving plate; 28. Telescopic plate; 29. ​​Slide groove; 30. Pressure rod; 31. Side plate; 32. Rack; 33. Mounting plate; 34. Gear; 35. Base plate; 36. Wall panel; 37. Slot; 38. Auxiliary plate; 39. Auxiliary tooth groove; 40. Waterproof plate. Detailed Implementation

[0031] The specific embodiments of the present invention are described below with reference to examples. However, these examples are only used to illustrate the present invention in detail and do not limit the scope of the present invention in any way. Unless otherwise specified, the equipment components involved in the following examples are all conventional equipment components.

[0032] Example 1: An integrated trolley for lifting and feeding reinforcing bars and installing waterproof membrane, see [link / reference] Figures 1-3 The system includes a steel structure support frame 1, on which circumferential supports 2 are provided. The frame of the frame 1 is welded from steel, and the circumferential supports 2 are evenly spaced on the frame 1. The frame and the circumferential supports 2 are supported and fixed by vertical or radial steel structural members. A walking device can be installed at the bottom of the frame 1. The specific walking method can be implemented using existing technologies such as walking or wheeled types to achieve self-propelled movement of the trolley. A rebar lifting and feeding system and a waterproof membrane installation system are also provided on the frame 1.

[0033] The rebar lifting and loading system includes a lifting mechanism and a conveying mechanism. The lifting mechanism is used to lift the circumferential rebars to the top of the trolley. See [link / reference]. Figure 4The lifting mechanism includes a pair of vertical guide rails 3 set at one end of the platform 1, and a lifting frame 4 installed on the two side guide rails 3 and moving up and down along the guide rails 3. The lifting frame 4 includes a vertical guide plate 5, and a horizontal support plate 6 is set on the outer side of the guide plate 5. An inclined plate is set between the support plate 6 and the guide plate 5 to form a triangular support. A lifting tooth groove 7 for placing circumferential reinforcing bars is set on the support plate 6. A lifting drive mechanism for driving the guide plate 5 to move up and down along the guide rail 3 is set on the inner side of the guide plate 5. A transfer mechanism is set on the platform 1 between the upper parts of the two guide rails 3 to transfer the circumferential reinforcing bars lifted by the lifting frame 4 to the upper part of the platform 1 to the conveying mechanism. The conveying mechanism is set on the top of the platform 1 to convey the circumferential reinforcing bars to the other end of the platform.

[0034] The guide rail 3 has an "I"-shaped cross-section, and a rack 32 is provided along its length on the inner side of the guide rail 3. The lifting drive mechanism includes mounting plates 33 positioned opposite each other on the two sides of the guide plate 5, with the mounting plates 33 located on both sides of the guide rail 3. A gear 34 is provided on the inner side of the mounting plate 33, meshing with the rack 32 on the guide rail 3. A lifting drive motor is provided on the outer side of the mounting plate 33 to drive the gear 34 to rotate. The lifting drive motor drives the gear 34 to rotate, moving it up and down along the rack 32, thereby moving the lifting frame 4 up and down, lifting the circumferential steel bar from the bottom to the top of the platform 1. The installation and driving methods of the lifting drive mechanism described here are understandable and implementable by those skilled in the art. Other driving methods can also be used as needed to achieve the up and down movement of the lifting frame 4.

[0035] When loading circumferential reinforcing bars, the lifting frame 4 first moves down to the bottom of the guide rail 3. The workers place the circumferential reinforcing bars into the lifting tooth slots 7 one by one. The lifting drive mechanisms on both sides drive the lifting frame 4 to move upward along the guide rail. When it reaches the upper part of the platform 1, the circumferential reinforcing bars on the lifting frame 4 are moved to the conveying mechanism through the transfer mechanism. The conveying mechanism then moves the circumferential reinforcing bars to the rear end, thus realizing the loading of circumferential reinforcing bars.

[0036] The conveying mechanism includes a push plate 11 located at the center of the top of the platform 1, see [link / reference]. Figure 7 The push plates 11 are arranged in two parallel rows. The push plates 11 in a single row are arranged sequentially and extend from one end of the platform 1 to the other end. Between the two rows of push plates 11, there are two rows of auxiliary plates 38 parallel to the push plates 11. The auxiliary plates 38 are provided with auxiliary tooth grooves 39. The upper part of the push plates 11 is provided with a conveying tooth groove 12. An intermittent stepping mechanism is provided at the lower part of each push plate 11. The intermittent stepping mechanism drives the push plate 11 to move back and forth, which is used to move the circumferential steel bars sent by the transfer mechanism sequentially to the other end of the platform 1. The circumferential steel bars move forward one tooth groove each time.

[0037] In this embodiment, there are three circumferential supports 2, located at the front, middle, and rear ends of the platform 1, respectively. The lifting mechanism is located at the front end of the platform 1. A set of conveying mechanisms is provided between the front and middle circumferential supports 2, and between the middle and rear circumferential supports 2. In the conveying mechanisms, the size and spacing of the conveying slots 12 are the same as those of the auxiliary slots 39. To facilitate a clear description of the working principle and operation of the conveying mechanisms, the conveying mechanism between the front and middle circumferential supports 2 is referred to as the front-end conveying mechanism, and the conveying mechanism between the middle and rear circumferential supports 2 is referred to as the rear-end conveying mechanism.

[0038] In the front-end conveying mechanism, when the push plate 11 is in the initial position, the 1st to nth conveying tooth slots correspond one-to-one with the 1st to nth auxiliary tooth slots on the auxiliary plate. When the push plate 11 moves forward, the 1st to n-1st conveying tooth slots correspond one-to-one with the 2nd to nth auxiliary tooth slots on the auxiliary plate, and the nth conveying tooth slot corresponds to the 1st auxiliary tooth slot on the auxiliary plate in the rear-end conveying mechanism.

[0039] When the pusher plate 11 in the rear-end conveying mechanism is in its initial position, its first to nth conveying slots correspond one-to-one with the second to (n+1)th auxiliary slots on the auxiliary plate. When the circumferential reinforcing bar is conveyed to the auxiliary slots at the rear end, the two sets of pusher plates 11 at the rear end begin to move, so that the first to nth conveying slots on the rear-end pusher plate correspond one-to-one with the first to nth auxiliary slots on the rear-end auxiliary plate. As the rear-end pusher plate moves back and forth, the circumferential reinforcing bar is moved sequentially to the rear end until the auxiliary slot 39 at the rear end is filled with the circumferential reinforcing bar. In this way, the front and rear conveying mechanisms cooperate to realize the conveying of the circumferential reinforcing bar. In specific implementation, multiple sets of pusher plates arranged in sequence can be set as needed.

[0040] To prevent the central circumferential support 2 from interfering with the operation of the conveying mechanism, an opening can be made on the central circumferential support 2 for the push plate 11 to pass through, thereby enabling the front push plate 11 to convey the circumferential reinforcing bars to the rear auxiliary plate 38. Below the opening of the central circumferential support 2, welded steel structural components can be added to avoid affecting the load-bearing performance of the central circumferential support 2 and to ensure the support stability of the platform 1.

[0041] The intermittent stepping mechanism includes two sets of rocker propulsion devices 13 disposed under each propulsion plate 11. Each rocker propulsion device 13 includes a propulsion motor mounted on a frame 1. The output end of the propulsion motor is connected to a rotating plate 14. The rotating plate 14 is sequentially rotatably connected to a crank rocker 15 and a driven plate 16. The end of the driven plate 16 is rotatably connected to a fixed plate 17 disposed on the frame 1. The bend of the crank rocker 15 is rotatably connected to an ear plate 18 disposed on the propulsion plate 11. A connecting rod 19 is also disposed between the two sets of rocker propulsion devices 13. The two ends of the connecting rod 19 are rotatably connected to the connection positions of the rotating plate 14 and the crank rocker 15, respectively. The propulsion motors in the two sets of rocker propulsion devices 13 drive the rotating plate 14 to rotate. The rotating plate 14 sequentially drives the crank rocker 15 and the driven plate 16 to rotate, thereby causing the propulsion plate 11 to reciprocate within a certain range. The structure, working principle, and operation mode of this intermittent stepping mechanism are understandable to those skilled in the art and can be set and implemented as needed.

[0042] The intermittent stepping mechanism drives the push plate 11 to move back and forth, and the push plates 11 on both sides move synchronously. Each time, it drives the circumferential steel bar on it to move forward one tooth groove until the circumferential steel bars are evenly distributed along the length of the frame 1, thus completing the feeding of the circumferential steel bars in this section.

[0043] See waterproof membrane installation system Figure 6 The system includes a support rod 8 positioned between the circumferential supports 2 at both ends of the platform 1. A crossbar 9 for hanging a waterproof membrane roll is provided on one side of the support rod 8, and an arc-shaped guide plate 10 is provided on the upper part of the other side of the support rod 8. Both ends of the support rod 8 are mounted on the circumferential supports 2 via a traveling mechanism, which drives the support rod 8 to move along the circumferential supports 2. The traveling mechanism includes a side plate 31 connected to the end of the support rod 8 at its upper part. The circumferential support 2 has an "I"-shaped cross-section. A traveling wheel is provided in the space formed between the lower part of the side plate 31 and the recessed side of the circumferential support 2. A traveling drive motor corresponding to the traveling wheel is provided on the side plate 31. This traveling mechanism can be implemented using existing equipment and components; its structure, working principle, and installation method are all understandable and implementable by those skilled in the art.

[0044] In this embodiment, multiple guide plates 10 are arranged side by side, and the bottom of the guide plate 10 is hinged to the support rod 8 via a torsion spring. When laying the waterproof membrane 40, a wide roll of waterproof membrane or two narrow rolls arranged side by side can be hung on the crossbar 9. Alternatively, waterproof membrane rolls of different widths (3-6m) can be selected according to actual operational needs. The guide plate 10 is hinged to the support rod 8 via a torsion spring, allowing the guide plate 10 to rotate within a certain angle. Under the action of the torsion spring, it moves along the laying surface, ensuring the waterproof membrane 40 adheres to the laying surface.

[0045] When laying the waterproof membrane 40, the support rod 8 first moves to the lower part of one side of the trolley, corresponding to the starting point of the waterproof membrane laying surface on the tunnel wall. The waterproof membrane roll is installed on the crossbar 9. The movable end of the waterproof membrane 40 passes around the support rod 8 and the guide plate 10 and is fixed to the tunnel wall. After the end of the waterproof membrane 40 is fixed, the traveling mechanism drives the support rod 8 and the waterproof membrane roll to move upward a certain distance along the circumferential support 2. When moving, it will pull the waterproof membrane roll to rotate to achieve automatic material feeding. During this process, the guide plate 10, under the action of the torsion spring, always abuts against the waterproof membrane 40 and fits against the tunnel wall, so that the waterproof membrane 40 and the laying surface remain flat. At this time, the workers fix this section of the waterproof membrane. After the fixing is completed, the support rod 8 moves again to lay the next section of the waterproof membrane. This process is repeated. When the support rod 8 moves to the tunnel wall at the bottom of the other side of the trolley, a set of waterproof membranes is laid. The guide plate 10 is connected to the support plate via a torsion spring, ensuring that the outer edge of the guide plate 10 remains pressed against the waterproof membrane 40 and the laying surface under the elastic action of the torsion spring, thus maintaining a flat and close fit between the waterproof membrane 40 and the laying surface. Because the waterproof membrane 40 is fixed in sections during laying, the flatness and looseness of the waterproof membrane 40 are guaranteed, preventing wrinkles and voids behind the lining. When feeding reinforcing bars, the support rod 8 can move to the lowest point on one side of the trolley, avoiding interference with the feeding of circumferential and longitudinal reinforcing bars.

[0046] The shuttle mechanism in this embodiment is shown below. Figure 8 , Figure 9 The system includes a sling plate 24 and a rotating rod 20 mounted on a platform 1 between two guide rails 3. One end of the rotating rod 20 is rotatably connected to the platform 1, and the other end is connected to a sling motor fixed on the platform 1. The top of the sling plate 24 has a sling tooth groove 25. The bottom of the sling plate 24 is hinged with a parallel main support rod 21 and a secondary support rod 22. The bottom end of the main support rod 21 is connected to the middle of the rotating rod 20. A connecting plate 23 is provided between the main support rod 21 and the secondary support rod 22. Both ends of the connecting plate 23 are rotatably connected to the main support rod 21 and the secondary support rod 22, respectively. An auxiliary motor is provided at the connection position between the secondary support rod 22 and the connecting plate 23. The sling plate 24, the main support rod 21, the secondary support rod 22 and the connecting plate 23 form a parallel four-bar linkage structure, which is used to lift the lifting mechanism to the circumferential steel bars on the upper part of the platform and move them to the conveying mechanism.

[0047] The transfer mechanism here is controlled by a transfer motor and an auxiliary motor. When the lifting mechanism moves the circumferential rebar upward from the lower part of the platform, the transfer mechanism is in its initial position (the transfer plate 24 is rotated to a vertical position and retracted at the end of the platform 1). When the lifting mechanism moves the circumferential rebar to the upper part of the platform 1, the transfer motor and the auxiliary motor drive the transfer plate 24 to rotate to a position parallel to the support plate. At this time, the transfer tooth groove 25 corresponds one-to-one with the lifting tooth grooves 7 on both sides, so that the circumferential rebar is placed in the corresponding transfer tooth groove 25. Then, the transfer motor and the auxiliary motor drive the transfer plate 24 to continue moving in the direction of the conveying mechanism. Then, the push plate 11 in the conveying mechanism conveys the circumferential rebar to the other end of the platform 1, thus realizing the loading of the circumferential rebar. In the specific setting of the equipment, the height of the lifting tooth groove 7 on the lifting frame 4 and the height of the guide plate 5 are determined so as not to affect the transfer plate 24 from bringing the circumferential rebar out and moving it to the conveying mechanism. The ferry mechanism here can be set up in two sets, with the two sets of ferry plates working in parallel and synchronously to increase the support force on the circumferential reinforcement.

[0048] The structure, movement method, positional relationship, distance, height difference, and installation method of the shuttle mechanism in this embodiment can all be calculated and installed according to the actual specifications of the equipment. This is a solution that can be understood and implemented by those skilled in the art.

[0049] Multiple sets of longitudinal steel reinforcement installation mechanisms are arranged circumferentially between adjacent circumferential supports 2. (See...) Figure 5 The longitudinal reinforcement installation mechanism includes a base plate 35, an installation groove is provided in the middle of the base plate 35, a wall plate 36 is provided in the installation groove, and a slot 37 for placing longitudinal reinforcement is provided along the upper length of the wall plate 36; the wall plate 36 is hydraulically driven and moves up and down in the installation groove to lift the longitudinal reinforcement to the position of the circumferential reinforcement and assist in binding.

[0050] The longitudinal reinforcement installation mechanism can be evenly arranged along the circumference of the platform 1. When feeding the longitudinal reinforcement, the longitudinal reinforcement is placed in the slot 37, and the wall plate 36 is hydraulically driven to move the longitudinal reinforcement to the position of the upper circumferential reinforcement, thus realizing the feeding and positioning of the longitudinal reinforcement. By using the circumferential reinforcement lifting and feeding mechanism in conjunction with the longitudinal reinforcement installation mechanism, the uniform arrangement and spacing control of the circumferential and longitudinal reinforcement can be achieved, improving the quality of reinforcement binding and the quality of the concrete cover of the bound reinforcement; at the same time, it also improves the feeding and binding efficiency of the circumferential and longitudinal reinforcement, saving labor and time.

[0051] Auxiliary plates 38, parallel to the slots 37, are provided on both sides of the base plate 35. Auxiliary grooves 39 are formed on the auxiliary plates 38, and the positions of the auxiliary grooves 39 in the longitudinal rebar installation mechanism correspond one-to-one with those in the conveying mechanism. In this embodiment, a longitudinal rebar installation mechanism is also provided between the two auxiliary plates 38 in the conveying mechanism, facilitating the feeding and binding of the top longitudinal rebar. By providing auxiliary plates 38 in the longitudinal rebar installation mechanism, the arrangement and positioning of the circumferential rebar can be further ensured, which helps to improve the efficiency of rebar binding work and improve construction quality.

[0052] Example 2: An integrated trolley for lifting and loading reinforcing bars and installing waterproof membrane, differing from Example 1 in that the transfer mechanism is described below. Figure 9 The system includes a translation drive mechanism 26 positioned between two rows of push plates 11. A movable plate 27 is located at the front end of the telescopic part of the translation drive mechanism 26. The movable plate 27 has a groove, and a telescopic plate 28 is installed in the groove. A swing tooth groove 25 is provided on the telescopic plate 28. The telescopic plate 28 is hydraulically driven and moves up and down in the groove. When the lifting frame 4 lifts the circumferential steel bar to the upper position of the platform 1, the telescopic part of the translation drive mechanism 26 extends, driving the movable plate 27 to move between the two lifting frames 4 and to a position lower than the location of the circumferential steel bar. The telescopic plate 28 is hydraulically driven to push upward, so that the circumferential steel bar is correspondingly engaged in the swing tooth groove 25. At this time, the lifting frame 4 can move downward, and the telescopic part of the translation drive mechanism retracts, so that the movable plate 27 drives the circumferential steel bar back to the upper position of the platform 1. Then the telescopic plate 28 retracts back into the groove, so that the circumferential steel bar falls into the corresponding conveying tooth groove 12 on the push plate 11.

[0053] In this embodiment, the transfer mechanism can be configured as two sets working synchronously, with the moving plates 27 in the two sets of transfer mechanisms arranged in parallel to increase the supporting force of the moving plates 27 on the circumferential reinforcing bars. The translation drive mechanism 26 can be implemented using a hydraulic drive mechanism. The translation drive mechanism 26 is mounted on the platform 1. When the telescopic part extends, it drives the moving plate 27 to move between the two lifting frames 4. At this time, the moving plate 27 is located at the lower part of the circumferential reinforcing bars, and the telescopic plate 28 is pushed upward, so that the circumferential reinforcing bars are correspondingly engaged in the transfer tooth groove 25. The height of the telescopic plate 28 after being pushed up should exceed the height of the lifting tooth groove 7 and exceed the height of the transmission tooth groove 12 in the transmission mechanism, so that the circumferential reinforcing bars can be moved from the lifting mechanism to the transmission mechanism. After the moving plate 27 lifts the circumferential reinforcing bar, the lifting frame 4 can be lowered to avoid the height of the guide plate 5 affecting the movement of the circumferential reinforcing bar. Then, the telescopic part of the translation drive mechanism 26 is retracted, which drives the moving plate 27 to move above the conveying mechanism. As the telescopic plate 28 falls into the groove, the circumferential reinforcing bar is placed in the conveying tooth groove 12 on the push plates 11 on both sides, and then the push plates 11 carry out subsequent conveying.

[0054] Example 3: An integrated trolley for lifting and loading reinforcing bars and installing waterproof membranes. Based on Example 1 or Example 2, the reinforcing bar lifting and loading system further includes a pressing mechanism. The pressing mechanism includes vertical grooves 29 respectively opened on the outer side of the guide plate 5. A lifting device is installed in the groove 29. A pressing drive motor is installed at the top of the telescopic part of the lifting device. The output end of the pressing drive motor is connected to a pressing rod 30. The pressing rod 30 rotates under the drive of the pressing drive motor. When the pressing rod 30 rotates to the horizontal direction, it is located above the support plate 6 and parallel to the support plate 6. When the pressing rod 30 rotates to the vertical direction, the pressing drive motor moves down along the groove 29 under the drive of the lifting device, so that the pressing rod 30 is retracted into the groove 29. By setting up a pressing mechanism and using it in conjunction with a swing mechanism, a downward pressure can be applied to both sides of the circumferential reinforcing bar, so that the circumferential reinforcing bar is slightly bent during loading, becoming a near-arc shape, which facilitates subsequent binding and positioning. The lifting device here can be hydraulically driven.

[0055] The working method of the transfer mechanism and the pressing mechanism in Example 1 is as follows: When the transfer plate 24 moves upward and receives the circumferential steel bar, the lifting mechanism can drive the pressure rod 30 to move downward. The circumferential steel bars on both sides gradually deform under the action of the pressure rod 30. When the circumferential steel bar bends to a certain arc, the pressing drive motor drives the pressure rod 30 to rotate to the vertical position. The lifting device drives the pressing drive motor and the pressure rod 30 to move downward, so that the pressure rod 30 is retracted into the slide groove 29. The lifting mechanism continues to move downward, and the transfer mechanism drives the circumferential steel bar to continue to move towards the conveying mechanism.

[0056] The working method of the transfer mechanism and the pressing mechanism in Example 2 is as follows: After the telescopic plate 28 lifts the circumferential steel bar, the lifting frame 4 moves down, and the pressure rod 30 gradually contacts both sides of the circumferential steel bar. During the pressing process, the circumferential steel bar is deformed. When the lifting frame 4 moves down to a certain extent and the circumferential steel bar bends to a certain arc, the pressing drive motor drives the pressure rod 30 to rotate to the vertical position. The lifting device drives the pressing drive motor and the pressure rod 30 to move down, so that the pressure rod 30 is retracted into the slide groove 29 without affecting the lifting frame 4 to continue to move down. At the same time, the transfer mechanism drives the circumferential steel bar to move towards the conveying mechanism.

[0057] The trolley in this invention integrates functions such as circumferential rebar loading, longitudinal rebar loading, and waterproof membrane laying, solving the problems of excessive construction machinery, high labor intensity, and serious material waste caused by the different and interchangeable trolleys used for rebar loading and waterproof membrane laying in existing technologies. Circumferential rebar is loaded using a lifting method, which effectively improves loading efficiency, saves labor costs, and reduces labor intensity. Longitudinal rebar loading enables accurate positioning and, in conjunction with the circumferential rebar loading mechanism, provides better assistance for subsequent rebar tying, thus improving the construction quality of the rebar layer. The waterproof membrane laying is driven by a traveling mechanism; through the contact and movement of the guide plate with the laying surface, the waterproof membrane is fixed in sections and laid flat, effectively improving the flatness of the waterproof membrane laying, avoiding wrinkles, improving the efficiency and quality of waterproof membrane laying, and reducing the cost of subsequent tunnel defect remediation.

[0058] The present invention has been described in detail above with reference to the embodiments. However, those skilled in the art will understand that, without departing from the spirit of the present invention, various specific parameters in the above embodiments can be changed to form multiple specific embodiments, all of which are common variations of the present invention, and will not be described in detail here.

Claims

1. A trolley integrating rebar lifting and loading with waterproofing membrane installation, comprising a steel structure support frame, on which circumferential supports are provided; characterized in that, The platform is also equipped with a steel bar lifting and feeding system and a waterproof membrane installation system; The rebar lifting and feeding system includes a lifting mechanism and a conveying mechanism. The lifting mechanism is used to lift the circumferential rebar to the upper part of the trolley. The lifting mechanism includes a pair of vertical guide rails set at one end of the platform, and a lifting frame installed on the two side guide rails and moving up and down along the guide rails. The lifting frame includes a vertical guide plate, and a horizontal support plate is set on the outer side of the guide plate. The support plate is provided with lifting tooth grooves for placing the circumferential rebar. A lifting drive mechanism is set on the inner side of the guide plate to drive it to move up and down along the guide rails. A transfer mechanism is set on the platform between the upper parts of the two guide rails to transfer the circumferential rebar on the lifting frame to the conveying mechanism. The conveying mechanism is set on the top of the platform to convey the circumferential rebar to the other end of the platform. The waterproof membrane installation system includes a support rod disposed between the circumferential supports at both ends of the platform. A crossbar for hanging the waterproof membrane roll is provided on one side of the support rod, and an arc-shaped guide plate is provided on the upper part of the other side of the support rod. Both ends of the support rod are respectively mounted on the circumferential supports through a traveling mechanism, which is used to drive the support rod to move along the circumferential supports. The conveying mechanism includes a push plate located at the middle of the top of the platform. The push plates are arranged in two parallel rows, with each row extending from one end of the platform to the other. Between the two rows of push plates are two rows of auxiliary plates parallel to the push plates, with auxiliary tooth grooves formed on the auxiliary plates. Conveying tooth grooves are formed on the upper part of the push plates. An intermittent stepping mechanism is provided at the lower part of each push plate. The intermittent stepping mechanism drives the push plate to reciprocate, which is used to move the circumferential steel bars sent by the transfer mechanism sequentially towards the other end of the platform. Each time, the circumferential steel bar moves forward by one tooth groove. The rebar lifting and feeding system also includes a pressing mechanism, which includes vertical grooves respectively opened on the outer side of the guide plate. A lifting device is installed in the groove. The top of the telescopic part of the lifting device is equipped with a pressing drive motor. The output end of the pressing drive motor is connected to a pressing rod. The pressing rod rotates under the drive of the pressing drive motor. When the pressing rod rotates to the horizontal direction, it is located above the support plate and parallel to the support plate. When the pressing rod rotates to the vertical direction, the pressing drive motor moves down along the groove under the drive of the lifting device, so that the pressing rod is retracted into the groove. Multiple sets of longitudinal steel bar installation mechanisms are arranged circumferentially between adjacent circumferential supports. The longitudinal steel bar installation mechanism includes a base plate, an installation groove is opened in the middle of the base plate, a wall plate is provided in the installation groove, and a slot for placing longitudinal steel bars is opened along the upper length direction of the wall plate. The wall plate is hydraulically driven and moves up and down in the installation groove to lift the longitudinal steel bars to the position of the circumferential steel bars and assist in binding. Auxiliary plates parallel to the slots are provided on both sides of the base plate, and auxiliary tooth grooves are provided on the auxiliary plates. The positions of these auxiliary tooth grooves correspond one-to-one with the auxiliary tooth grooves in the conveying mechanism.

2. The integrated trolley for lifting and feeding reinforcing bars and installing waterproof membrane according to claim 1, characterized in that, The intermittent stepping mechanism includes two sets of rocker propulsion devices located under each propulsion plate. Each rocker propulsion device includes a propulsion motor mounted on a frame. The output end of the propulsion motor is connected to a rotating plate. The rotating plate is rotatably connected to the crank rocker and the driven plate in sequence. The end of the driven plate is rotatably connected to a fixed plate on the frame. The turning point of the crank rocker is rotatably connected to an ear plate on the propulsion plate. A connecting rod is also provided between the two sets of rocker propulsion devices. The two ends of the connecting rod are rotatably connected to the connection points of the rotating plate and the crank rocker, respectively.

3. The integrated trolley for lifting and feeding reinforcing bars and installing waterproof membrane according to claim 1, characterized in that, The ferry mechanism includes a ferry plate and a rotating rod mounted on a platform between two guide rails. One end of the rotating rod is rotatably connected to the platform, and the other end is connected to a ferry motor fixed on the platform. The top of the ferry plate has ferry tooth grooves, and the bottom of the ferry plate is hinged with parallel main support rods and auxiliary support rods. The bottom end of the main support rod is connected to the middle of the rotating rod. A connecting plate is provided between the main support rod and the auxiliary support rod, and both ends of the connecting plate are rotatably connected to the main support rod and the auxiliary support rod, respectively. An auxiliary motor is provided at the connection position between the auxiliary support rod and the connecting plate. The ferry plate, main support rod, auxiliary support rod, and connecting plate form a parallel four-bar linkage structure, which is used to lift the lifting mechanism to the circumferential steel bars on the upper part of the platform and move them to the conveying mechanism.

4. The integrated trolley for lifting and feeding reinforcing bars and installing waterproof membrane according to claim 1, characterized in that, The transfer mechanism includes a translation drive mechanism disposed between two rows of push plates. A movable plate is disposed at the front end of the telescopic part of the translation drive mechanism. A groove is formed on the movable plate, and a telescopic plate is installed in the groove. A transfer tooth groove is formed on the telescopic plate. The telescopic plate is hydraulically driven and moves up and down in the groove. When the lifting frame drives the circumferential reinforcing bar to the upper position of the platform, the telescopic part of the translation drive mechanism extends, driving the movable plate to move between the two lifting frames and to a position lower than the location of the circumferential reinforcing bar. The telescopic plate is hydraulically driven to push upward, so that the circumferential reinforcing bar is correspondingly engaged in the transfer tooth groove. The lifting frame moves downward, the telescopic part of the translation drive mechanism retracts, so that the movable plate drives the circumferential reinforcing bar back to the upper position of the platform. The telescopic plate retracts back into the groove, so that the circumferential reinforcing bar falls into the corresponding transfer tooth groove on the push plate.

5. The integrated trolley for lifting and feeding reinforcing bars and installing waterproof membrane according to claim 1, characterized in that, The walking mechanism includes a side plate connected to the end of the support rod at the top, and the cross section of the circumferential support is "I" shaped. A walking wheel is provided in the space formed between the lower part of the side plate and the recessed position of the side of the circumferential support. A walking drive motor corresponding to the walking wheel is provided on the side plate.

6. The integrated trolley for lifting and feeding reinforcing bars and installing waterproof membrane according to claim 1, characterized in that, The guide rail has an "I" shaped cross section, and a rack is provided on the inner side of the guide rail along its length direction; the lifting drive mechanism includes mounting plates that are arranged opposite to each other on the two sides of the guide plate, and the two mounting plates are respectively located on both sides of the guide rail. A gear is provided on the inner side of the mounting plate, and the gear meshes with the rack on the guide rail. A lifting drive motor for driving the gear to rotate is provided on the outer side of the mounting plate.

7. The integrated trolley for lifting and feeding reinforcing bars and installing waterproof membrane according to claim 1, characterized in that, The guide plates are arranged in multiple rows, and the bottom of the guide plate is hinged to the support rod by a torsion spring.

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