Railway station canopy pouring trolley

Abstract

The utility model belongs to the field of trolley, especially a railway station canopy pouring trolley, in view prior art traditional trolley adaptability is insufficient: the problem of low adjustment efficiency: template link is poor: poor walking stability, present and propose the following scheme, including A trolley, B trolley and C trolley, A trolley and C trolley symmetrical design and same structure, B trolley is in A trolley and C trolley middle, the top of A trolley and C trolley all is provided with C trolley template, the top of B trolley is provided with B trolley top template, and both ends of B trolley top template all are rotatably connected with B trolley side template, in the utility model, A / C trolley configuration 1.5 meters standard overhang, B trolley sets up replaceable overhang subassembly, through " standard section + adjusting section " combination, covers 9-13.8 meters full column distance range, and equipment conversion time is shortened, and template system adopts " main template + lap joint mould " design, and 150mm lap joint mould in rear end forms 100mm effective lap joint with concrete, eliminates cold joint quality hidden danger, and template joint flatness improves.

Description

Technical Field

[0001] This utility model relates to the field of trolley technology, and in particular to a trolley for pouring concrete for railway station canopies. Background Technology

[0002] In the construction of railway station canopies, traditional trolley systems have the following technical defects:

[0003] Insufficient adaptability: The fixed trolley cannot be compatible with various column spacing conditions. When the column spacing changes from 9 meters to 13.8 meters, the tooling equipment needs to be completely replaced, which leads to an extension of the construction preparation cycle.

[0004] Low adjustment efficiency: Cross slope adjustment relies on manual pad blocks, and support components need to be repeatedly disassembled and reassembled during ultra-high section construction, with verticality control error reaching ±10mm or more;

[0005] Poor formwork connection: Conventional trolley end formwork has no overlapping design, which can easily lead to misalignment and grout leakage at concrete pouring joints, affecting the structural appearance quality.

[0006] Poor walking stability: The monorail walking system has insufficient anti-overturning moment and is prone to deviation when constructing on curved sections, requiring additional guiding devices.

[0007] This application addresses the aforementioned technical bottlenecks by proposing a rapidly reconfigurable canopy pouring solution through modular trolley assembly, adaptive adjustment mechanism, and template connection device. Utility Model Content

[0008] The purpose of this utility model is to address the shortcomings of existing technologies, such as the insufficient adaptability of traditional trolleys: fixed trolleys cannot be compatible with various column spacing conditions; when the column spacing changes from 9 meters to 13.8 meters, the tooling equipment needs to be completely replaced, leading to a longer construction preparation period; low adjustment efficiency: cross slope adjustment relies on manual pads, and repeated disassembly and assembly of support components are required during ultra-high section construction, with verticality control errors exceeding ±10mm; poor formwork connection: conventional trolley end formwork has no overlapping design, and concrete pouring joints are prone to misalignment and grout leakage, affecting the structural appearance quality; poor walking stability: the single-rail walking system has insufficient anti-overturning moment, and is prone to deviation during construction on curved sections, requiring additional guiding devices. Therefore, this utility model proposes a railway station canopy pouring trolley.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A casting trolley for a railway station canopy includes trolley A, trolley B, and trolley C. Trolley A and trolley C are symmetrically designed and have the same structure. Trolley B is located between trolley A and trolley C. The top of trolley A and trolley C are each provided with a template of trolley C, and the top of trolley B is provided with a top template of trolley B. Both ends of the top template of trolley B are rotatably connected to side templates of trolley B. The top template of trolley B, the side templates of trolley B, and the two templates of trolley C are connected to each other to form a whole when the formwork is closed at the column position. The column spacing can be adapted from 9 meters to 13.8 meters by changing the length of the cantilever template.

[0011] In one possible design, a C-cart gantry is fixedly installed on the top of both the A-cart and the C-cart. A C-formwork truss is installed on the top of the C-cart gantry via a lifting assembly. The C-cart formwork is fixedly installed on the top of the C-formwork truss. A C-cart traveling work platform is fixedly installed on one side of the C-cart gantry.

[0012] In one possible design, a traveling rail is also included, and the bottom of trolleys A, B, and C are all equipped with driven traveling devices that overlap the top of the traveling rail.

[0013] In one possible design, hydraulic stations are installed inside trolleys A, B, and C.

[0014] In one possible design, the rear ends of trolleys A, B, and C are all fixedly equipped with rear end overlap molds of 150mm in length. The bottom of trolleys A, B, and C is equipped with multiple base jacks, one end of which contacts the ground for support, thereby allowing the driven walking device to detach from the traveling rail. The bottom of trolleys A, B, and C is fixedly equipped with vertical hydraulic cylinders, and the piston rods of the vertical hydraulic cylinders are fixedly equipped with translation trestles, which are used to drive trolleys A, B, and C to move horizontally on top of the traveling rail.

[0015] In one possible design, the lifting assembly includes multiple sets of bracket telescopic sliding sleeves, which are fixedly connected between the C-formwork truss and the C-trolley gantry. Multiple sets of bracket adjusting screws are provided between the C-formwork truss and the C-trolley gantry, and the bracket adjusting screws are used to adjust the distance between the C-formwork truss and the C-trolley gantry.

[0016] In one possible design, the base jack is divided into two sections in the height direction, with the lower section flipping upwards; during construction, the vertical cylinders extend fully and the base jack contacts and supports the ground, and the base jack retracts when moved.

[0017] In one possible design, a B-bracket column is fixedly installed on the top of the B-cart, a B-template adjustment bracket is installed on the top of the B-bracket column, the top template of the B-cart is fixedly installed on the top of the B-template adjustment bracket, and two symmetrically arranged B-bracket support screws are rotatably connected between the top two sides of the B-cart and the bottom two sides of the B-template adjustment bracket. The B-bracket support screws are used to adjust the height of the B-template adjustment bracket.

[0018] In one possible design, both sides of the B trolley are rotatably connected to a B trolley side cylinder. The piston rod of the B trolley side cylinder is rotatably connected to one side of the B trolley side template. The B trolley side cylinder is used to adjust the position of the B trolley side template. During demolding, the B trolley side cylinder is operated to drive the B trolley side template to rotate and detach from the concrete surface.

[0019] In this application, the trolley is divided into three trolleys, A, B, and C, as shown in the figure. The A, B, and C trolleys are symmetrically designed, with B in the middle. When the ABC templates are closed at the column position, they can be connected to each other to form a whole.

[0020] To facilitate adjustments to the trolley to adapt to changes in cross slope and superelevation and to ensure the trolley's stability, the vertical lifting mechanism of the trolley is located at the lower part of the trolley gantry.

[0021] The trolley is raised and lowered as a whole.

[0022] The vertical hydraulic cylinder is designed with a stroke of 520mm (maximum stroke 600mm, with a 100mm stroke allowance).

[0023] The maximum stroke of the trolley's translation cylinder is 300mm, and the stroke can be adjusted to 150mm to the left and right of the tunnel center.

[0024] The track gauge of the trolley is 1000mm and 1350mm.

[0025] Trolley travel: The trolley is towed by a winch provided by the construction site, and the rated pressure of the hydraulic system of the trolley is 16MP.

[0026] The track gauge on both sides of the double-column canopy trolley remains unchanged, while the track gauge of the middle trolley is adjustable.

[0027] The longest section under construction is 72.6 meters, and the trolley is divided into 12-meter sections.

[0028] The truss is 9 meters long with 1.5-meter cantilevered sections on both sides for easy disassembly, and consists of 6 sections.

[0029] For the remaining construction length, the number of trolley segments can be increased or decreased according to the construction length.

[0030] A 150mm overlap template is set at the rear, overlapping the previous concrete by 100mm.

[0031] At the expansion joint location, the center of the expansion joint is 4.5 meters away from the column. During construction, a 1.5-meter cantilever and formwork on one side of the trolley need to be removed.

[0032] When constructing the columns at a spacing of 10.8 meters, the 1.5-meter cantilever and formwork at the connection between the two trolleys need to be removed and replaced with a 1.8-meter cantilever and formwork.

[0033] When constructing the column spacing at 13.8 meters, a 1.8-meter cantilever and formwork need to be added between the two trolley connections.

[0034] The station canopy is 550 meters long. As shown in the diagram above, the station canopy can be divided into a left line and a right line on the plan.

[0035] Due to the construction joint, the longitudinal length of the trolley is 35.86+33+57+69+57.6+72.6+57+57+57+53.9=549.96 meters.

[0036] The trolley is designed in 9-meter units, with a column sandwiched in the middle.

[0037] The design requirements for column spacing of 9 meters, 10.8 meters, 12 meters, and 13.8 meters can be met through various combinations.

[0038] 4.5 + 4.5 = 9.

[0039] 4.5 + 4.5 + 1.5 + 0.3 = 10.8 meters

[0040] 1.5 + 4.5 + 4.5 + 1.5 = 12 meters

[0041] 1.5 + 4.5 + 1.5 + 0.3 + 4.5 + 1.5 = 13.8 meters

[0042] If each concrete trolley is 9 meters long, there are 6 trolleys of type A, 6 trolleys of type B, and 6 trolleys of type C. Multiple trolleys can be combined according to different construction sections and the length of the formwork gantry to meet different needs.

[0043] The AC trolley template includes a template truss underneath, and a template fine-tuning screw is installed below the truss. A lifting and translation device is installed below the gantry.

[0044] To prevent the fine-tuning screw from skewing, a longitudinal screw scissor brace is designed at this position, along with a front screw scissor brace.

[0045] To simplify the gantry components, the gantry is a multi-truss structure, with 6 trusses in a 9-meter longitudinal section. When the length exceeds 9 meters, diagonal bracing is used for reinforcement.

[0046] To simplify the structural translation device, which is 2.1 meters long and contains a hydraulic cylinder, the problem of adjusting the lateral position of the entire gantry was solved.

[0047] When concrete is being poured, the vertical hydraulic cylinders extend fully, and the foundation jacks support the ground, solving the problem that the hydraulic cylinders cannot bear the weight for a long time and may settle due to pressure relief.

[0048] After each construction is completed, the foundation jack needs to be folded up to prevent excessive weight from being transported on site. The foundation jack is divided into two sections in the height direction, and the lower section can be flipped up.

[0049] Beneficial effects: The A / C trolleys are equipped with a standard 1.5-meter cantilever, while the B trolley is equipped with a replaceable cantilever assembly. Through the combination of "standard section + adjustable section", it covers the entire column spacing range of 9-13.8 meters, shortening the equipment changeover time.

[0050] The formwork system adopts a "main formwork + overlapping formwork" design. The 150mm overlapping formwork at the rear end forms an effective 100mm overlap with the concrete, eliminating the potential quality problems of cold joints and improving the flatness of the formwork joints.

[0051] Vertical adjustment: A 520mm stroke hydraulic cylinder, combined with a fine-tuning screw, enables ±200mm ultra-high adjustment. The longitudinal scissor brace prevents the screw from tilting, reducing the verticality error of the template.

[0052] Lateral adjustment: The translation cylinder provides ±150mm adjustment range, and the 2.1-meter-long translation device has a built-in displacement sensor, which improves translation accuracy;

[0053] Walking positioning: A polytetrafluoroethylene sliding plate is installed on the contact surface between the lateral trestle and the rail, which reduces the coefficient of friction and walking resistance.

[0054] The gantry system adopts a 6-truss + diagonal bracing reinforcement structure, with a single truss bearing capacity of 50 tons and a bending modulus increased by 3 times;

[0055] The basic jack features a split design, extending 300mm to provide stable support during construction and folding up when walking to avoid the risk of bumps and knocks.

[0056] Three-point support system: When the vertical hydraulic cylinder is under load, the foundation jack forms a reliable support with the ground, solving the problem of pressure relief during long-term hydraulic cylinder operation.

[0057] The hydraulic station integrates a proportional valve group to achieve synchronous control of the oil cylinders, thus shortening the mold closing time.

[0058] The side cylinder is equipped with a pressure sensor to display the demolding force in real time, preventing damage to the mold plate due to overload;

[0059] The walking system uses a winch for traction, and the hydraulic brake has a holding force of up to 10 tons, which improves the safety of parking on slopes.

[0060] The trolley segment is based on a 9-meter unit, and can be quickly adapted to construction sections ranging from 57.6 to 72.6 meters by adding or removing standard segments;

[0061] The cantilever components are bolted together, reducing the time required to interchange between 1.5-meter and 1.8-meter specifications;

[0062] The template adjustment bracket is equipped with a four-way fine-tuning mechanism, with a horizontal / vertical adjustment range of ±50mm, which meets the needs of casting complex curved surfaces. Attached Figure Description

[0063] Figure 1 A schematic diagram of the end face structure of a railway station canopy casting trolley proposed in this utility model;

[0064] Figure 2 A longitudinal view of a 12-meter standard trolley for pouring concrete for railway station canopies, as proposed in this utility model;

[0065] Figure 3 A schematic diagram of the demolding structure of a casting trolley for a railway station canopy proposed in this utility model;

[0066] Figure 4 This is a schematic diagram of the cross-sectional structure of the column position template of the casting trolley for a railway station canopy proposed in this utility model.

[0067] Figure 5 A longitudinal view of the deformation joint location of a railway station canopy pouring trolley proposed in this utility model;

[0068] Figure 6 A longitudinal view of a 10.8-meter column spacing trolley for a railway station canopy pouring trolley proposed in this utility model;

[0069] Figure 7 This utility model presents a longitudinal view of a railway station canopy pouring trolley with a column spacing of 13.8 meters.

[0070] In the diagram: 1. B-shaped trolley roof formwork; 2. B-shaped formwork adjusting bracket; 3. B-shaped bracket column; 4. B-shaped bracket support screw; 5. B-shaped trolley side cylinder; 6. B-shaped trolley side formwork; 7. C-shaped trolley formwork; 8. C-shaped formwork truss; 9. C-shaped trolley gantry; 10. C-shaped trolley working platform; 11. Rear end overlapping formwork; 12. Bracket telescopic sliding sleeve; 13. Bracket adjusting screw; 14. Hydraulic station; 15. Vertical cylinder; 16. Foundation jack; 17. Driven walking device; 18. Translation trestle; 19. Traveling rail. Detailed Implementation

[0071] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0072] In one embodiment; reference Figure 1-7A type of formwork trolley includes: a railway station canopy pouring trolley composed of trolley A, trolley B, and trolley C. Trolley A and trolley C are symmetrically arranged and have identical structures, with trolley B located between trolley A and trolley C. A trolley C formwork 7 is installed on the top of each of trolleys A and C. A trolley B top formwork 1 is installed on the top of trolley B, and both ends of this fixed formwork 1 are connected to a trolley B side formwork 6 via a rotating structure. During the formwork closing operation at the construction column position, the trolley B top formwork 1, the two trolley B side formworks 6, and the trolley C formwork 7 on both sides can be interconnected to form a complete formwork system.

[0073] A B-bracket column 3 is fixedly installed on the top of the B-cart. A B-formwork adjustment bracket 2 is installed at the top of the B-bracket column 3, and the B-cart top formwork 1 is fixed to the top of this adjustment bracket 2. Two symmetrically arranged B-bracket support screws 4 are rotatably connected between the top sides of the B-cart and the bottom sides of the B-formwork adjustment bracket 2. Rotating the B-bracket support screws 4 allows for precise adjustment of the height of the B-formwork adjustment bracket 2. A B-cart side hydraulic cylinder 5 is installed on each side of the B-cart, and the piston rod of each side hydraulic cylinder 5 is rotatably connected to one side of the corresponding B-cart side formwork 6. Operating the B-cart side hydraulic cylinders 5 allows for adjustment of the angle and position of the B-cart side formwork 6, assisting in the demolding process of the concrete structure.

[0074] Both trolley A and trolley C have a C-trolley gantry 9 fixedly mounted on their tops. A C-formwork truss 8 is mounted on top of the C-trolley gantry 9 via a lifting assembly, and the C-trolley formwork 7 is fixed to the top of this formwork truss 8. The lifting assembly consists of multiple sets of bracket telescopic sliding sleeves 12 fixed between the C-formwork truss 8 and the C-trolley gantry 9, and multiple sets of bracket adjusting screws 13 positioned between them. Rotating the bracket adjusting screws 13 adjusts the height of the C-formwork truss 8 relative to the C-trolley gantry 9. A C-trolley traveling work platform 10 is fixedly mounted on one side of the C-trolley gantry 9.

[0075] This application can be used in the field of trolleys, or in other fields applicable to this application.

[0076] In another embodiment; reference Figure 1-7A railway station canopy casting trolley is described, which is used in the field of casting trolleys. The entire trolley system is erected on a laid-out traveling rail 19. Each of the three trolleys (A, B, and C) is equipped with a driven traveling device 17 at its bottom, which overlaps the top of the traveling rail 19. A 150mm long rear-end overlap mold 11 is fixedly installed at the rear end of each trolley to achieve a 100mm effective overlap with the previously cast concrete structure. Multiple foundation jacks 16 are installed at the bottom of each trolley. Operating the foundation jacks 16 to support the trolley on the ground allows it to be lifted, thus detaching the driven traveling devices 17 from the traveling rail 19. Each trolley is also equipped with a vertical hydraulic cylinder 15, the piston rod of which is connected to a translation saddle 18. When the foundation jacks 16 are retracted, operating the vertical hydraulic cylinder 15 drives the translation saddle 18 to contact the ground, allowing the entire trolley to move horizontally along the traveling rail 19. The interiors of trolleys A, B, and C are all equipped with hydraulic stations 14 to provide power to the oil cylinders, with a system rated pressure of 16 MPa.

[0077] The trolley is designed with a basic unit of 9 meters, and can adapt to various column spacing requirements ranging from 9 meters to 13.8 meters by combining different cantilever formwork lengths. For example, when constructing at a 13.8-meter spacing, a 1.8-meter cantilever formwork section needs to be added between the two trolleys. The total longitudinal length of the trolley is divided into multiple construction sections based on the 550-meter length of the station canopy. During construction, the vertical hydraulic cylinder 15 is fully extended, and the foundation jack 16 is lowered to support the ground, allowing the trolley to stably bear the weight for concrete pouring. After pouring is completed and reaches the required strength, the foundation jack 16 is retracted, and the side hydraulic cylinder 5 of trolley B is operated to rotate the side formwork 6 of trolley B and detach it from the concrete surface. Then, the vertical hydraulic cylinder 15 is operated to drive the translation trolley 18 to move the trolley to the next work position. The foundation jack 16 is designed with a two-section structure, with the lower section able to be flipped upwards for easy transportation and reduced weight during movement.

[0078] However, as is well known to those skilled in the art, the working principles and wiring methods of **devices and **devices are commonplace and belong to conventional methods or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0079] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A railway station canopy pouring trolley, characterized in that, It includes trolley A, trolley B and trolley C. Trolley A and trolley C are symmetrically designed and have the same structure. Trolley B is located between trolley A and trolley C. Trolley C template (7) is set on the top of trolley A and trolley C. Trolley B top template (1) is set on the top of trolley B. Both ends of trolley B top template (1) are rotatably connected to trolley B side template (6). Trolley B top template (1), trolley B side template (6) and two trolley C templates (7) are connected to each other to form a whole when the mold is closed at the column position.

2. The railway station canopy pouring trolley according to claim 1, characterized in that, in, Both A and C trolleys are fixedly installed with C trolley gantry (9) on top. C template truss (8) is installed on top of C trolley gantry (9) via lifting assembly. C trolley template (7) is fixedly installed on top of C template truss (8). C trolley traveling work platform (10) is fixedly installed on one side of C trolley gantry (9).

3. The railway station canopy pouring trolley of claim 1, wherein, It also includes a traveling rail (19), and the bottom of the A trolley, B trolley and C trolley are all equipped with a driven traveling device (17), which is attached to the top of the traveling rail (19).

4. The railway station canopy pouring trolley of claim 1, wherein, in, Hydraulic stations (14) are installed inside trolleys A, B, and C.

5. The railway station canopy pouring trolley of claim 1, wherein, in, The rear ends of trolleys A, B, and C are all fixedly installed with a 150mm long rear end overlap mold (11). The bottom of trolleys A, B, and C is provided with multiple base jacks (16). One end of the base jack (16) is in contact with the ground for support, thereby causing the driven walking device (17) to detach from the walking rail (19). The bottom of trolleys A, B, and C is fixedly installed with a vertical hydraulic cylinder (15). The piston rod of the vertical hydraulic cylinder (15) is fixedly installed with a translation trestle (18). The translation trestle (18) is used to drive trolleys A, B, and C to translate on the top of the walking rail (19).

6. The railway station canopy pouring trolley of claim 2, wherein, in, The lifting assembly includes multiple sets of bracket telescopic sliding sleeves (12), which are fixedly connected between the C template truss (8) and the C trolley gantry (9). Multiple sets of bracket adjusting screws (13) are provided between the C template truss (8) and the C trolley gantry (9), and the bracket adjusting screws (13) are used to adjust the distance between the C template truss (8) and the C trolley gantry (9).

7. The railway station canopy pouring trolley of claim 5, wherein, in, The foundation jack (16) is divided into two sections in the height direction, with the lower section flipped up. During construction, the vertical cylinder (15) extends fully and the foundation jack (16) contacts the supporting ground. When moving, the foundation jack (16) retracts.

8. The railway station canopy pouring trolley according to any one of claims 1 to 3, characterized in that, in, The top of the B trolley is fixedly installed with a B bracket column (3), and the top of the B bracket column (3) is provided with a B template adjustment bracket (2). The top template (1) of the B trolley is fixedly installed on the top of the B template adjustment bracket (2). Two symmetrically arranged B bracket support screws (4) are rotatably connected between the top two sides of the B trolley and the bottom two sides of the B template adjustment bracket (2). The B bracket support screws (4) are used to adjust the height of the B template adjustment bracket (2).

9. The railway station canopy pouring trolley of claim 8, wherein, in, Both sides of the B trolley are rotatably connected to the B trolley side cylinder (5). The piston rod of the B trolley side cylinder (5) is rotatably connected to one side of the B trolley side template (6). The B trolley side cylinder (5) is used to adjust the position of the B trolley side template (6). When demolding, the B trolley side cylinder (5) is operated to drive the B trolley side template (6) to rotate and detach from the concrete surface.

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