Bridge hanging basket for bridge construction

Abstract

This application belongs to the field of hanging basket technology and discloses a bridge hanging basket for bridge construction, including a hanging basket truss and a forming mold disposed on one side of the hanging basket truss. The hanging basket truss is equipped with a lifting mechanism and a moving mechanism. The moving mechanism includes two sets of moving components and a driving component symmetrically arranged about the center of the lower frame of the hanging basket truss. Each moving component includes a rotating rod that passes through and is rotatably connected to the lower frame of the hanging basket truss, and a moving wheel fixedly sleeved on the rotating rod. The two sets of rotating rods are arranged in parallel. The driving component includes a mounting plate fixed to the lower frame of the hanging basket truss, a moving motor fixed to the mounting plate, a main moving gear fixedly sleeved on the output end of the moving motor, and a driven gear fixedly sleeved on one of the rotating rods and meshing with the main moving gear. This application, through the setting of the moving mechanism, eliminates the tedious operation of manually constructing tracks, reducing the labor intensity of workers.

Description

Technical Field

[0001] This utility model relates to the field of hanging basket technology, and in particular to a bridge hanging basket for bridge construction. Background Technology

[0002] The hanging basket is a core piece of equipment used in bridge engineering for cantilever construction. It is mainly used for segmented casting of prestressed concrete continuous beams, cantilever beams, and T-shaped steel structures. After the hanging basket is used to construct a section of the bridge, it needs to be moved to the newly built bridge surface by a moving device to carry out the construction of the next section of the bridge.

[0003] Chinese utility model patent CN222332493U discloses a bridge hanging basket traveling device, which is set on a platform. The improvement lies in that the bridge hanging basket traveling device includes a corresponding left hanging basket traveling device and a right hanging basket traveling device; both the left and right hanging basket traveling devices include: a track, a main truss, and a traveling mechanism; the traveling mechanism includes a moving vehicle connected by a connecting plate and rollers; the moving vehicle includes a first moving vehicle and a second moving vehicle; the first moving vehicle is simultaneously connected to the first steel plate and the second steel plate; the second moving vehicle is connected to the end of the bottom steel material near the cross-section; the traveling mechanism also includes a hydraulic device, which is placed on the track and can push the second moving vehicle to move, thereby driving the first moving vehicle and the main truss to move as a whole.

[0004] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: during the overall movement of the hanging basket, workers need to install a track connected to the previous track on the newly constructed bridge surface before the hanging basket can be moved by the walking mechanism, which increases the labor intensity of the workers. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a bridge hanging basket for bridge construction.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a bridge formwork for bridge construction, comprising a formwork truss and a forming mold disposed on one side of the formwork truss for casting the bridge. The formwork truss is provided with a lifting mechanism for driving the forming mold to rise and fall, and a moving mechanism for driving the formwork truss to move on the bridge. The moving mechanism includes two sets of moving components symmetrically arranged about the center of the lower frame of the formwork truss. Each set of moving components includes a rotating rod that passes through and is rotatably connected to the lower frame of the formwork truss, and a fixed sleeve. The two sets of rotating rods are arranged in parallel, and the moving mechanism also includes a drive assembly. The drive assembly includes a mounting plate fixed to the lower frame of the hanging basket truss, a moving motor fixed to the mounting plate, a main moving gear fixedly sleeved on the output end of the moving motor, and a driven moving gear fixedly sleeved on one of the rotating rods and meshing with the main moving gear. Positioning frames are provided on both side walls of the lower frame of the hanging basket truss. Each positioning frame is provided with a positioning mechanism for connecting the bridge to the hanging basket truss so that the hanging basket can maintain stability during operation.

[0007] By adopting the above technical solution, workers pour concrete into the molding mold. After the concrete solidifies, they start the moving motor, which drives the main moving gear to rotate. This causes the driven gear meshing with the main moving gear, the rotating rod connected to the driven gear, and the moving wheel connected to the rotating rod to all rotate. This allows the hanging basket truss to move the molding mold towards the direction of the next section of the bridge construction, eliminating the tedious operation of manually building tracks and reducing the labor intensity of the workers. During the pouring process of the molding mold, the positioning mechanism ensures the stability of the hanging basket during operation.

[0008] Furthermore, the positioning frame has an L-shaped structure, with the vertical sections of the two positioning frames symmetrically arranged on both sides of the bridge. The bridge includes piers, supports, and bridge decks connected sequentially from bottom to top. The positioning mechanism includes a positioning component, which includes an upper clamping plate disposed on the positioning frame and located above the bridge deck, a lower clamping plate disposed on the positioning frame and located below the bridge deck, an upper roller rotatably mounted on the bottom of the upper clamping plate and rollingly connected to the top of the bridge deck, a lower roller rotatably mounted on the top of the lower clamping plate and rollingly connected to the bottom of the bridge deck, and a limiting roller rotatably mounted on the side wall of the positioning frame near the bridge deck and abutting against the side wall of the bridge deck. The positioning mechanism also includes an adjustment component for adjusting the distance between the upper clamping plate and the lower clamping plate.

[0009] By adopting the above technical solution, during the movement of the hanging basket, the upper roller is rotatably installed at the bottom of the upper clamping plate and rolls with the top of the bridge plate, the lower roller is rotatably installed at the top of the lower clamping plate and rolls with the bottom of the bridge plate, and the limiting roller is rotatably installed on the side wall of the positioning frame near the bridge plate and fits against the side wall of the bridge plate. This reduces the friction between the positioning frame and the bridge, making the hanging basket move more smoothly.

[0010] Furthermore, each of the two positioning frames has a limiting through hole on its adjacent sidewalls in the vertical section. Each set of adjustment components includes an upper slider that is slidably installed in the limiting through hole and fixed to the upper clamping plate, a lower slider that is slidably installed in the limiting through hole and fixed to the lower clamping plate, a bidirectional threaded upright rod that passes through the top of the positioning frame and is rotatably connected to it, and a rotating wheel that is fixedly sleeved on the upper end of the bidirectional threaded upright rod. The bidirectional threaded upright rod passes through the limiting through hole and has two sets of threads with opposite directions and equal pitch. The upper slider and the lower slider are symmetrically distributed on the two sections of threads of the bidirectional threaded upright rod, and the bidirectional threaded upright rod is threadedly connected to both the upper slider and the lower slider.

[0011] By adopting the above technical solution, the operator rotates the rotating wheel to drive the bidirectional threaded upright to rotate. Since the upper and lower sliders are connected by threads on the bidirectional threaded upright, and the limiting through hole limits the upper and lower sliders, the upper and lower sliders can move closer or further apart. Since the upper slider is fixed to the upper clamping plate and the lower slider is fixed to the lower clamping plate, the distance between the upper and lower clamping plates can be changed, which facilitates the clamping or releasing of the bridge deck by the upper and lower clamping plates.

[0012] Furthermore, a control mechanism is provided on the hanging basket truss. The control mechanism includes a connecting assembly, which has two sets of mirror-distributed components about the middle of the hanging basket truss. Each set of the connecting assembly includes a connecting column that is slidably fitted through the lower frame of the hanging basket truss on the side wall near the positioning frame. The connecting column is fixed to the horizontal section of the positioning frame near the side wall of the hanging basket truss. A connecting groove is provided at the end of the connecting column away from the positioning frame. The connecting assembly also includes a bidirectional threaded crossbar that is disposed between the two connecting columns and threadedly connected to both connecting grooves. The bidirectional threaded crossbar has two sets of threads with opposite directions and equal pitch. The control mechanism also includes a control assembly, which includes a control motor fixed to the mounting plate, a main control gear fixedly sleeved on the output end of the control motor, and a slave control gear fixedly sleeved on the bidirectional threaded crossbar and meshing with the main control gear.

[0013] By adopting the above technical solution, after the control motor works, it drives the main control gear, thereby causing the driven control gear meshing with the main control gear and the bidirectional threaded crossbar fixed to the driven control gear to rotate. Since the bidirectional threaded crossbar is provided with two sets of threads with opposite directions and equal pitch, and the two connecting slots of the bidirectional threaded crossbar are threadedly connected, the two connecting columns and the positioning frames fixed to the two connecting columns can move away from or close to each other, thereby achieving the purpose of moving away from or close to the bridge plate between the upper clamping plate and the lower clamping plate, which facilitates the disassembly or connection of the bridge plate and the positioning frame.

[0014] Furthermore, two fixed plates are fixed to the top of the upper frame of the hanging basket truss, symmetrical about the middle of the hanging basket truss. The lifting mechanism includes two sets of symmetrically arranged lifting components. Each set of lifting components includes a take-up roller rotatably installed between the two fixed plates and a steel wire lifting rope wound and fixed on the take-up roller. Each set of lifting components has two steel wire lifting ropes, which are symmetrically distributed at both ends of the take-up roller. The lower ends of the four steel wire lifting ropes in the two sets of lifting components are fixed to the top of the forming mold. The lifting mechanism also includes a rotating component for driving the take-up roller to rotate.

[0015] By adopting the above technical solution, the winding roller can be rotated by controlling the rotating component, which can realize the winding or unwinding of the steel wire lifting rope. Since the lower end of the steel wire lifting rope is fixed to the top of the forming mold, the purpose of raising and lowering the forming mold can be achieved, thus ensuring the normal construction work of the bridge.

[0016] Furthermore, one end of the take-up roller passes through the fixed plate and is rotatably connected. The rotating assembly includes a lifting motor fixed to one of the fixed plates, a main lifting gear fixedly sleeved on the output end of the lifting motor, and a secondary lifting gear fixedly sleeved on the take-up roller and meshing with the main lifting gear. There are two secondary lifting gears, which are respectively located on the two take-up rollers.

[0017] By adopting the above technical solution, after the lifting motor works, it drives the main lifting gear to rotate, thereby causing the two driven lifting gears meshing with the main lifting gear and the winding rollers connected to the two driven lifting gears to rotate, thus achieving the purpose of synchronous and unidirectional rotation of the two winding rollers and winding or releasing the wire rope.

[0018] Furthermore, multiple sleeves are fixed to the top of the forming mold, and vertical rods that slide in cooperation with the inner wall of the sleeves are fixed on the upper frame of the hanging basket truss. The number of vertical rods is equal to the number of sleeves and their positions correspond one-to-one.

[0019] By adopting the above technical solution, the vertical rod will slide along the inside of the sleeve during the lifting and lowering of the molding die, ensuring the stability of the molding die during movement.

[0020] Furthermore, a protective railing is fixed to the top of the positioning frame.

[0021] By adopting the above technical solutions, the safety of workers during rotation is improved.

[0022] In summary, this utility model has the following beneficial effects: In this application, the setting of the moving mechanism eliminates the tedious operation of manually building the track, reducing the labor intensity of the staff. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 An illustration of the explosion from another perspective;

[0025] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure of the positioning mechanism;

[0026] Figure 4 yes Figure 2 Enlarged view of point A in the middle;

[0027] Figure 5 yes Figure 3 Enlarged diagram of point B in the middle.

[0028] In the diagram: 1. Hanging basket truss; 2. Forming mold; 3. Lifting mechanism; 31. Lifting assembly; 311. Rewinding roller; 312. Steel wire lifting rope; 32. Rotating assembly; 321. Lifting motor; 322. Main lifting gear; 323. Slave lifting gear; 4. Moving mechanism; 41. Moving assembly; 411. Rotating rod; 412. Moving wheel; 42. Drive assembly; 421. Mounting plate; 422. Moving motor; 423. Main moving gear; 424. Slave moving gear; 5. Positioning frame; 6. Positioning mechanism; 61. Positioning assembly; 611. Upper... 612. Clamping plate; 613. Upper roller; 614. Lower roller; 615. Limiting roller; 62. Adjusting assembly; 621. Upper slider; 622. Lower slider; 623. Bidirectional threaded upright; 624. Rotary wheel; 7. Limiting through hole; 8. Control mechanism; 81. Connecting assembly; 811. Connecting column; 812. Bidirectional threaded crossbar; 82. Control assembly; 821. Control motor; 822. Main control gear; 823. Slave control gear; 9. Connecting groove; 10. Fixing plate; 11. Sleeve; 12. Vertical bar; 13. Guardrail. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figures 1-5 As shown in the embodiment of this application, a bridge formwork for bridge construction is disclosed, including a formwork truss 1, a forming mold 2, a moving mechanism 4, a positioning mechanism 6, a control mechanism 8, and a lifting mechanism 3. The forming mold 2 is disposed on one side of the formwork truss 1 and is used to cast the bridge. Positioning frames 5 are provided on both side walls of the lower frame of the formwork truss 1, and the positioning frames 5 are L-shaped structures. The vertical sections of the two positioning frames 5 are symmetrically arranged on both sides of the bridge, and the side walls of the vertical sections of the two positioning frames 5 that are close to each other are provided with limiting holes 7. A guardrail 13 is fixed to the top of the positioning frame 5. The bridge includes piers, supports, and bridge slabs connected sequentially from bottom to top. Two fixing plates 10 are fixed to the top of the upper frame of the formwork truss 1, which are symmetrical about the middle of the formwork truss 1.

[0031] The moving mechanism 4 is mounted on the hanging basket truss 1 and is used to drive the molding mold 2 to rise and fall. The moving mechanism 4 includes a moving component 41 and a driving component 42.

[0032] Two sets of movable components 41 are provided and are symmetrically arranged about the center of the lower frame of the hanging basket truss 1. Each set of movable components 41 includes a rotating rod 411 and a moving wheel 412. The rotating rod 411 passes through the lower frame of the hanging basket truss 1 and is rotatably connected. The two sets of rotating rods 411 are arranged in parallel. The moving wheel 412 is fixedly sleeved on the rotating rod 411. Two sets of moving wheels 412 are provided in each set of movable components 41 and are symmetrically distributed about the center of the rotating rod 411.

[0033] The drive assembly 42 includes a mounting plate 421, a moving motor 422, a main moving gear 423, and a driven moving gear 424. The mounting plate 421 is fixed to the lower frame of the hanging basket truss 1. The moving motor 422 is fixed to the mounting plate 421, and the main moving gear 423 is fixedly sleeved on the output end of the moving motor 422. The driven moving gear 424 is fixedly sleeved on one of the rotating rods 411 and meshes with the main moving gear.

[0034] By adopting the above technical solution, workers pour concrete into the molding mold 2. After the concrete solidifies, they start the moving motor 422, which drives the main moving gear 423 to rotate. This causes the driven moving gear 424, which meshes with the main moving gear, the rotating rod 411 connected to the driven moving gear 424, and the moving wheel 412 connected to the rotating rod 411 to all rotate. This allows the hanging basket truss 1 to move the molding mold 2 towards the direction of the next section of the bridge construction, eliminating the tedious operation of manually building tracks and reducing the labor intensity of workers. During the pouring process of the molding mold 2, the positioning mechanism 6 ensures the stability of the hanging basket during operation.

[0035] The positioning mechanism 6 is mounted on the positioning frame 5. The positioning mechanism 6 is used to connect the bridge to the hanging basket truss 1 so that the hanging basket remains stable during operation. The number of positioning mechanisms 6 is equal to the number of positioning frames 5, and their positions correspond one-to-one. The positioning mechanism 6 includes a positioning component 61 and an adjustment component 62.

[0036] The positioning assembly 61 includes an upper clamping plate 611, a lower clamping plate 612, an upper roller 613, a lower roller 614, and a limiting roller 615. The upper clamping plate 611 is mounted on the positioning frame 5 and located on the upper side of the bridge plate. The lower clamping plate 612 is mounted on the positioning frame 5 and located on the lower side of the bridge plate. The upper roller 613 is rotatably mounted on the bottom of the upper clamping plate 611 and is in rolling connection with the top of the bridge plate. The lower roller 614 is rotatably mounted on the top of the lower clamping plate 612 and is in rolling connection with the bottom of the bridge plate. The limiting roller 615 is rotatably mounted on the side wall of the positioning frame 5 near the bridge plate and is in contact with the side wall of the bridge plate.

[0037] During the movement of the hanging basket, the upper roller 613 is rotatably mounted on the bottom of the upper clamping plate 611 and rolls with the top of the bridge plate, the lower roller 614 is rotatably mounted on the top of the lower clamping plate 612 and rolls with the bottom of the bridge plate, and the limiting roller 615 is rotatably mounted on the side wall of the positioning frame 5 near the bridge plate and fits against the side wall of the bridge plate, which reduces the friction between the positioning frame 5 and the bridge, making the hanging basket move more smoothly.

[0038] Adjustment assembly 62 is used to adjust the distance between upper clamping plate 611 and lower clamping plate 612. Each adjustment assembly 62 includes an upper slider 621, a lower slider 622, a bidirectional threaded upright 623, and a rotating wheel 624. The upper slider 621 is slidably installed in the limiting through hole 7 and fixed to the upper clamping plate 611. The lower slider 622 is slidably installed in the limiting through hole 7 and fixed to the lower clamping plate 612. The bidirectional threaded upright 623 passes through the top of the positioning frame 5 and is rotatably connected. The bidirectional threaded upright 623 passes through the limiting through hole 7 and has two sets of threads with opposite directions and equal pitch. The upper slider 621 and lower slider 622 are symmetrically distributed on the two sections of the threads of the bidirectional threaded upright 623, and the bidirectional threaded upright 623 is threadedly connected to both the upper slider 621 and the lower slider 622.

[0039] The operator rotates the rotating wheel 624, which drives the bidirectional threaded upright 623 to rotate. Since the upper slider 621 and the lower slider 622 are threadedly connected by the bidirectional threaded upright 623, and the limiting through hole 7 limits the upper slider 621 and the lower slider 622, the upper slider 621 and the lower slider 622 move closer or further apart. Since the upper slider 621 is fixed to the upper clamping plate 611 and the lower slider 622 is fixed to the lower clamping plate 612, the distance between the upper clamping plate 611 and the lower clamping plate 612 can be changed, which facilitates the clamping or loosening of the bridge plate by the upper clamping plate 611 and the lower clamping plate 612.

[0040] The control mechanism 8 is mounted on the hanging basket truss 1, and includes a connecting component 81 and a control component 82. The connecting component 81 has two sets of components mirror-distributed about the middle of the hanging basket truss 1.

[0041] Each connecting assembly 81 includes a connecting post 811 and a bidirectional threaded crossbar 812. The connecting post 811 passes through the lower frame of the hanging basket truss 1 and is slidably fitted to the side wall near the positioning frame 5. The connecting post 811 is fixed to the horizontal section of the positioning frame 5 near the side wall of the hanging basket truss 1, and a connecting groove 9 is provided at the end of the connecting post 811 away from the positioning frame 5. The bidirectional threaded crossbar 812 is disposed between the two connecting posts 811 and is threadedly connected to both connecting grooves 9, and the bidirectional threaded crossbar 812 is provided with two sets of threads with opposite directions and equal pitch.

[0042] The control assembly 82 includes a control motor 821, a main control gear 822, and a slave control gear 823. The control motor 821 is fixed on the mounting plate 421. The main control gear 822 is fixedly sleeved on the output end of the control motor 821, and the slave control gear 823 is fixedly sleeved on the bidirectional threaded crossbar 812 and meshes with the main control gear 822.

[0043] After the control motor 821 starts working, it drives the main control gear 822, which in turn causes the driven control gear 823 meshing with the main control gear 822 and the bidirectional threaded crossbar 812 fixed to the driven control gear 823 to rotate. Since the bidirectional threaded crossbar 812 is provided with two sets of threads with opposite directions and equal pitch, and the two connecting slots 9 of the bidirectional threaded crossbar 812 are threadedly connected, the two connecting posts 811 and the positioning frame 5 fixed to the two connecting posts 811 can move away from or closer to each other, thereby achieving the purpose of moving the upper clamping plate 611 away from or closer to the lower clamping plate 612, which facilitates the disassembly or connection of the bridge plate and the positioning frame 5.

[0044] The lifting mechanism 3 is mounted on the hanging basket truss 1 and includes a lifting assembly 31 and a rotating assembly 32. Each lifting assembly 31 includes a take-up roller 311 and a wire lifting rope 312. The take-up roller 311 is rotatably mounted between two fixed plates 10, with one end of the take-up roller 311 passing through and rotatably connected to the fixed plate 10. The wire lifting rope 312 is wound and fixed to the take-up roller 311. Each lifting assembly 31 has two wire lifting ropes 312, symmetrically distributed at both ends of the take-up roller 311. The lower ends of the four wire lifting ropes 312 in both lifting assemblies 31 are fixed to the top of the forming mold 2.

[0045] The rotating assembly 32 is used to drive the take-up roller 311 to rotate. The rotating assembly 32 includes a lifting motor 321, a main lifting gear 322, and a driven lifting gear 323. The lifting motor 321 is fixed on one of the fixed plates 10, the main lifting gear 322 is fixedly sleeved on the output end of the lifting motor 321, and the driven lifting gear 323 is fixedly sleeved on the take-up roller 311 and meshes with the main lifting gear 322.

[0046] After the lifting motor 321 starts working, it drives the main lifting gear 322 to rotate, which in turn causes the two driven lifting gears 323 meshing with the main lifting gear 322 and the winding rollers 311 connected to the two driven lifting gears 323 to rotate. This achieves synchronous and unidirectional rotation of the two winding rollers 311, which is used to wind up or unwind the wire rope 312, ensuring the normal construction of the bridge.

[0047] Multiple sleeves 11 are fixed to the top of the forming mold 2. Vertical rods 12 that slide against the inner wall of the sleeves 11 are fixed to the upper frame of the hanging basket truss 1. The number of vertical rods 12 is equal to the number of sleeves 11, and their positions correspond one-to-one. During the lifting and lowering of the forming mold 2, the sleeves 11 play a good limiting role for the vertical rods 12, ensuring the stability of the forming mold 2 during movement.

[0048] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bridge formwork for bridge construction, comprising a formwork truss (1) and a molding mold (2) disposed on one side of the formwork truss (1) for casting the bridge, wherein the formwork truss (1) is provided with a lifting mechanism (3) for driving the molding mold (2) to rise and fall, characterized in that: The hanging basket truss (1) is provided with a moving mechanism (4) for moving the hanging basket truss (1) on the bridge. The moving mechanism (4) includes two sets of moving components (41) symmetrically arranged about the center of the lower frame of the hanging basket truss (1). Each set of moving components (41) includes a rotating rod (411) that passes through and is rotatably connected to the lower frame of the hanging basket truss (1) and a moving wheel (412) fixedly sleeved on the rotating rod (411). The two sets of rotating rods (411) are arranged in parallel. The moving mechanism (4) also includes a driving component (42). The driving component (42) includes a fixed... The lower frame of the hanging basket truss (1) has an installation plate (421), a moving motor (422) fixed on the installation plate (421), a main moving gear (423) fixedly sleeved on the output end of the moving motor (422), and a driven moving gear (424) fixedly sleeved on one of the rotating rods (411) and meshing with the main moving gear. The lower frame of the hanging basket truss (1) is provided with positioning frames (5) on both sides. Each positioning frame (5) is provided with a positioning mechanism (6) for connecting the bridge to the hanging basket truss (1) so that the hanging basket can be kept stable during operation.

2. The bridge formwork for bridge construction according to claim 1, characterized in that: The positioning frame (5) has an L-shaped structure. The vertical sections of the two positioning frames (5) are symmetrically arranged on both sides of the bridge. The bridge includes piers, supports and bridge slabs connected sequentially from bottom to top. The positioning mechanism (6) includes a positioning component (61). The positioning component (61) includes an upper clamping plate (611) set on the positioning frame (5) and located on the upper side of the bridge slab, a lower clamping plate (612) set on the positioning frame (5) and located on the lower side of the bridge slab, an upper roller (613) rotatably installed on the bottom of the upper clamping plate (611) and rollingly connected to the top of the bridge slab, a lower roller (614) rotatably installed on the top of the lower clamping plate (612) and rollingly connected to the bottom of the bridge slab, and a limiting roller (615) rotatably installed on the side wall of the positioning frame (5) near the bridge slab and in contact with the side wall of the bridge slab. The positioning mechanism (6) also includes an adjusting component (62) for adjusting the distance between the upper clamping plate (611) and the lower clamping plate (612).

3. A bridge formwork for bridge construction according to claim 2, characterized in that: Limiting through holes (7) are provided on the side walls of the vertical sections of the two positioning frames (5) that are close to each other. Each set of adjustment components (62) includes an upper slider (621) that is slidably installed in the limiting through hole (7) and fixed to the upper clamping plate (611), a lower slider (622) that is slidably installed in the limiting through hole (7) and fixed to the lower clamping plate (612), a bidirectional threaded upright (623) that passes through the top of the positioning frame (5) and is rotatably connected to it, and a fixed sleeve on the double The rotating wheel (624) at the upper end of the threaded rod (623) passes through the limiting through hole (7). The bidirectional threaded rod (623) is provided with two sets of threads with opposite directions and equal pitch. The upper slider (621) and the lower slider (622) are symmetrically distributed on the two sections of the thread of the bidirectional threaded rod (623), and the bidirectional threaded rod (623) is threadedly connected to the upper slider (621) and the lower slider (622).

4. A bridge formwork for bridge construction according to claim 1, characterized in that: A control mechanism (8) is provided on the hanging basket truss (1). The control mechanism (8) includes a connecting component (81). The connecting component (81) has two sets of mirror-distributed about the middle of the hanging basket truss (1). Each set of the connecting component (81) includes a connecting column (811) that is slidably fitted on the side wall of the lower frame of the hanging basket truss (1) near the positioning frame (5). The connecting column (811) is fixed to the side wall of the horizontal section of the positioning frame (5) near the hanging basket truss (1). A connecting groove (9) is provided at the end of the connecting column (811) away from the positioning frame (5). The control mechanism (8) also includes a bidirectional threaded crossbar (812) disposed between the two connecting columns (811) and threadedly connected to both connecting slots (9). The bidirectional threaded crossbar (812) is provided with two sets of threads with opposite directions and equal pitch. The control mechanism (8) also includes a control component (82). The control component (82) includes a control motor (821) fixed on the mounting plate (421), a main control gear (822) fixedly sleeved on the output end of the control motor (821), and a slave control gear (823) fixedly sleeved on the bidirectional threaded crossbar (812) and meshing with the main control gear (822).

5. A bridge formwork for bridge construction according to claim 1, characterized in that: The upper frame of the hanging basket truss (1) has two fixed plates (10) fixed at the top, which are symmetrical about the middle of the hanging basket truss (1). The lifting mechanism (3) includes two sets of symmetrically arranged lifting components (31). Each set of lifting components (31) includes a take-up roller (311) rotatably installed between the two fixed plates (10) and a steel wire lifting rope (312) wound and fixed on the take-up roller (311). Each set of lifting components (31) has two steel wire lifting ropes (312) which are symmetrically distributed at both ends of the take-up roller (311). The lower ends of the four steel wire lifting ropes (312) in the two sets of lifting components (31) are fixed to the top of the forming mold (2). The lifting mechanism (3) also includes a rotating component (32) for driving the take-up roller (311) to rotate.

6. A bridge formwork for bridge construction according to claim 5, characterized in that: One end of the take-up roller (311) passes through the fixed plate (10) and is rotatably connected. The rotating assembly (32) includes a lifting motor (321) fixed on one of the fixed plates (10), a main lifting gear (322) fixedly sleeved on the output end of the lifting motor (321), and a secondary lifting gear (323) fixedly sleeved on the take-up roller (311) and meshing with the main lifting gear (322). There are two secondary lifting gears (323) and they are located on the two take-up rollers (311) respectively.

7. A bridge formwork for bridge construction according to claim 1, characterized in that: The top of the forming mold (2) is fixed with multiple sleeves (11), and the upper frame of the hanging basket truss (1) is fixed with vertical rods (12) that slide in cooperation with the inner wall of the sleeves (11). The number of vertical rods (12) is equal to the number of sleeves (11) and their positions correspond one-to-one.

8. A bridge formwork for bridge construction according to claim 1, characterized in that: The top of the positioning frame (5) is fixed with a guardrail (13).

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