Self-balancing arch bridge arch rib segmented pouring formwork system

Abstract

The invention discloses a self-balancing arch bridge arch rib segmented pouring formwork system, and relates to the technical field of pouring formworks. The formwork comprises the first formwork body and the second formwork body, the side faces, away from a pouring cavity, of the first formwork body and the second formwork body are each provided with a groove, the first formwork body and the second formwork body are each fixedly provided with a protruding block, the protruding blocks are matched with the grooves, the first formwork body and the second formwork body which are adjacent can be conveniently connected together in a butt joint mode, and connecting assemblies are arranged between the protruding blocks and the grooves. The first formwork and the second formwork which are adjacent are fixedly connected together conveniently, a large number of bolts are not needed for connection and fixation, rapid installation and fixation of the formworks before use and rapid disassembly of the formworks after use are facilitated, manpower is saved, and the construction progress is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pouring formwork, in particular to a self-balancing arch rib segmented pouring formwork system for arch bridge. BACKGROUND

[0002] As a classic bridge structure form, arch bridges have been widely used in highway, railway and bridge engineering due to their strong spanning capacity, good stress performance and beautiful appearance. The arch rib, as the main load-bearing structure of the arch bridge, directly affects the overall carrying capacity and durability of the entire arch bridge. In the construction process of the arch rib of the arch bridge, the segmented pouring method is a commonly used construction technology. This technology requires the use of a formwork system to divide the arch rib into multiple pouring segments, and the arch rib concrete is poured and formed segment by segment, which can effectively control concrete shrinkage and cracking and reduce construction difficulty.

[0003] Currently, traditional formwork systems lack dynamic adjustment capability and cannot respond to settlement deformation and pressure fluctuations during pouring. They cannot adaptively adjust the self-balance of the formwork during pouring, which can easily cause concrete cracking, surface defects and other problems, affecting the overall stability and service life of the arch bridge. In addition, adjacent formworks need to be fixed and connected by multiple bolts during use, increasing the workload of workers and making the splicing and fixing of the formwork and the disassembly after use more troublesome, affecting the construction progress.

[0004] To solve the above problems, we designed a self-balancing arch rib segmented pouring formwork system for arch bridge. SUMMARY

[0005] To solve the above technical problems, the present application is realized by the following technical scheme: The present application is a self-balancing arch rib segmented pouring formwork system for arch bridge, comprising a first formwork and a second formwork. The first formwork and the second formwork are identical in structure. The side of the first formwork away from the pouring cavity is provided with a groove. The first formwork is fixed with a protrusion. The protrusion cooperates with the groove. A connecting assembly is arranged between the protrusion and the groove. The connecting assembly comprises: A lead screw is arranged inside the first cavity. Two second cavities are oppositely arranged inside the first formwork near the groove. The lead screw is rotatably arranged in the first cavity. Two rectangular slots are oppositely arranged on the inner wall of the first cavity. A through slot is arranged on the inner wall of the second cavity near the groove. Two movable plates are threadedly arranged on the lead screw. A movable insertion rod is fixed to the side of each movable plate away from each other. The movable insertion rod cooperates with the rectangular slot and the through slot. A second bevel gear is fixedly arranged on the lead screw. A first bevel gear is engaged with one side of the second bevel gear. A self-balancing adjustment system is arranged on the first formwork and the second formwork.

[0006] The connecting assembly further comprises a vertical plate movably arranged in the second cavity, a side of the second cavity is provided with a plurality of round holes, a side of the first template close to the protrusion is provided with a plurality of positioning holes, a side of the vertical plate close to the outside is fixed with a plurality of positioning blocks, the positioning blocks are matched with the round holes and the positioning holes, a far end of the movable inserting rod away from the movable plate is provided with a wedge surface, a side of the vertical plate away from the positioning blocks is fixed with a wedge block, the wedge surface and the wedge block are matched with each other, and a spring is fixed between the side of the vertical plate close to the wedge block and the second cavity.

[0007] The second cavity is internally fixed with a fixed rod, the fixed rod penetrates through the vertical plate, the vertical plate and the fixed rod are in sliding fit, and the spring is sleeved on the outside of the fixed rod.

[0008] A side of the first template close to the groove is provided with a sealing groove, and a side of the first template close to the protrusion is fixed with a sealing strip, and the sealing strip and the sealing groove are matched with each other.

[0009] Two guide rods are oppositely fixed in the first cavity, the guide rods penetrate through the movable plate, the movable plate and the guide rods are in sliding fit, and the screw thread directions of the screw thread holes in the centers of the two movable plates are opposite.

[0010] A limiting plate is oppositely fixed on the screw rod, a knob is rotatably arranged on the protrusion, and an inner side end of the knob extends into the first cavity and is fixedly connected with the first bevel gear.

[0011] The self-balancing adjustment system comprises a central control module, the central control module is electrically connected with a data processing module, a sensor module and a self-balancing fine adjustment module, the sensor module comprises a displacement sensor unit and a pressure sensor unit, the displacement sensor unit is arranged at four corners of the first template and the second template, and the pressure sensor unit is installed at the connection between the first template and the second template.

[0012] The self-balancing fine adjustment module comprises a horizontal fine adjustment oil cylinder unit and a vertical fine adjustment oil cylinder unit, the self-balancing fine adjustment module is arranged on the first template and the second template, the horizontal fine adjustment oil cylinder unit is arranged along the direction of the vertical arch rib axis, the vertical fine adjustment oil cylinder unit is arranged in the vertical direction, and the bottoms of the horizontal fine adjustment oil cylinder unit and the vertical fine adjustment oil cylinder unit are installed on the support frame at the bottom of the template.

[0013] The self-balancing fine adjustment module comprises a horizontal fine adjustment oil cylinder unit and a vertical fine adjustment oil cylinder unit, the self-balancing fine adjustment module is arranged on the first template and the second template, the horizontal fine adjustment oil cylinder unit is arranged along the direction of the vertical arch rib axis, the vertical fine adjustment oil cylinder unit is arranged in the vertical direction, and the bottoms of the horizontal fine adjustment oil cylinder unit and the vertical fine adjustment oil cylinder unit are installed on the support frame at the bottom of the template. The convex block on the first formwork is fixed in the groove on the adjacent second formwork by the cooperation of the convex block and the groove, the first formwork and the second formwork are inserted together in the vertical direction, the quick connection and fixation of the first formwork and the second formwork are realized, and multiple bolts are not needed for fixation, thereby facilitating the quick connection and fixation of the sectional formwork. The wedge-shaped block is extruded to one side when the movable inserting rod is adjusted to be inserted into the second cavity, thereby driving the synchronous movement of the vertical plate, with the movement of the vertical plate, the positioning block is driven to pass through the circular hole and be inserted into the positioning hole on the adjacent second formwork, the first formwork and the second formwork are inserted together in the horizontal direction, and the stability of the connection of the first formwork and the second formwork is further ensured, under the elastic action of the spring, when the movable inserting rod is removed from the second cavity after use, the vertical plate is driven to return to the initial position, thereby synchronously driving the positioning block to be separated from the corresponding positioning hole, the quick disassembly of the first formwork and the second formwork is realized, the adjacent formworks in the traditional formwork system need to be fixed and connected through multiple bolts during use, the working burden of workers is increased, and the splicing and fixation of the formwork and the disassembly after use are relatively troublesome, which affects the construction progress. The displacement sensor unit is used for monitoring the settlement amount of the first formwork and the second formwork, the pressure sensor unit is used for monitoring the load distribution state in real time, the purpose of monitoring the lateral pressure of the first formwork and the second formwork is realized, the horizontal fine adjustment oil cylinder unit is used for driving the formwork to move in the direction perpendicular to the rib axis, the vertical fine adjustment oil cylinder unit is used for driving the formwork to move in the vertical direction, and the horizontal fine adjustment oil cylinder unit and the vertical fine adjustment oil cylinder unit are cooperated to realize the accurate adjustment of the formwork in the spatial position and the attitude, the formwork is ensured to be highly consistent with the design size and the curvature of the rib, the purpose of fine adjustment of the formwork is achieved, and the problems of settlement deformation and pressure fluctuation in the pouring process, self-adaptive adjustment of the formwork self-balance in the pouring process, and easy cracking and surface defects of concrete are effectively solved.

[0014] Of course, any product implementing the present application does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the connection between the first module and the second module in this invention; Figure 2 for Figure 1 Top view; Figure 3 for Figure 1 The main view; Figure 4 for Figure 3 Schematic diagram of the structure of section AA; Figure 5 for Figure 4 Schematic diagram of the structure of the mid-section BB; Figure 6 for Figure 4 Enlarged structural diagram at point C; Figure 7 for Figure 5 Enlarged structural diagram at point D; Figure 8 for Figure 5 Enlarged structural diagram at point E; Figure 9 This is a system block diagram of the self-balancing adjustment system in this invention.

[0017] The attached diagram lists the components represented by each number as follows: 1. First template; 2. Second template; 3. Groove; 4. Protrusion; 5. First cavity; 6. Second cavity; 7. Lead screw; 8. Movable plate; 9. Movable insert rod; 10. Rectangular groove; 11. Vertical plate; 12. Positioning block; 13. Positioning hole; 14. Wedge surface; 15. Wedge block; 16. Spring; 17. First bevel gear; 18. Second bevel gear; 19. Fixed rod; 20. Sealing groove; 21. Sealing strip; 22. Guide rod; 23. Limiting plate; 24. Knob; 100. Central control module; 200. Data processing module; 300. Sensor module; 301. Displacement sensor unit; 302. Pressure sensor unit; 400. Self-balancing fine-tuning module; 401. Horizontal fine-tuning cylinder unit; 402. Vertical fine-tuning cylinder unit. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be understood that the terms "upper," "middle," "outer," "inner," etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0020] Please see Figures 1-9 As shown, this invention is a self-balancing arch bridge arch rib segmental casting template system, including a first template 1 and a second template 2. The first template 1 and the second template 2 have identical structures. A groove 3 is provided on the side of the first template 1 away from the casting cavity. A protrusion 4 is fixed on the first template 1, and the protrusion 4 cooperates with the groove 3. A connecting component is provided between the protrusion 4 and the groove 3. The connecting component includes: The lead screw 7 and the protrusion 4 have a first cavity 5 inside. The first template 1 has two second cavities 6 opposite each other on the side near the groove 3. The lead screw 7 is rotatably set inside the first cavity 5. The inner wall of the first cavity 5 has two rectangular grooves 10 that are opposite each other. The inner wall of the second cavity 6 has a through groove on the side near the groove 3. The lead screw 7 is threaded with two movable plates 8. The two movable plates 8 are fixed with movable insert rods 9 on the side away from each other. The movable insert rods 9 cooperate with the rectangular grooves 10 and the through grooves. The lead screw 7 is fixedly sleeved with a second bevel gear 18. The second bevel gear 18 is meshed with a first bevel gear 17 on one side. The interaction between the protrusion 4 and the groove 3 facilitates the docking of the first template 1 and the second template 2, thereby driving the rectangular groove 10 to align with the corresponding through groove. The meshing of the first bevel gear 17 and the second bevel gear 18 facilitates the rotation of the adjusting screw 7, which in turn drives the two movable plates 8 to move away from each other. The movement of the movable plates 8 drives the movable insert rod 9 to move synchronously until the movable insert rod 9 passes through the rectangular groove 10 and is inserted into the second cavity 6 through the through groove. This achieves the purpose of fixing the protrusion 4 on the first template 1 into the groove 3 on the adjacent second template 2, and vertically connecting the first template 1 and the second template 2 together. This achieves a quick connection and fixation of the first template 1 and the second template 2 without the need for multiple bolts, saving manpower.

[0021] Both the first template 1 and the second template 2 are equipped with a self-balancing adjustment system.

[0022] The connecting assembly also includes a vertical plate 11, which is movably disposed inside the second cavity 6. Several round holes are penetrating the outer side of the inner wall of the second cavity 6. Several positioning holes 13 are provided on the side of the first template 1 near the protrusion 4. Several positioning blocks 12 are fixed on the outer side of the vertical plate 11. The positioning blocks 12 cooperate with the round holes and the positioning holes 13. A wedge-shaped surface 14 is provided at the end of the movable insert rod 9 away from the movable plate 8. A wedge-shaped block 15 is fixed on the side of the vertical plate 11 away from the positioning block 12. The wedge-shaped surface 14 and the wedge-shaped block 15 cooperate with each other. A spring 16 is fixed between the side of the vertical plate 11 near the wedge-shaped block 15 and the second cavity 6. The wedge-shaped surface 14 and the wedge-shaped block 15 cooperate with each other, so that when the adjusting movable rod 9 is inserted into the second cavity 6, the wedge-shaped block 15 is squeezed to one side, thereby driving the vertical plate 11 to move synchronously. As the vertical plate 11 moves, the positioning block 12 passes through the round hole and is inserted into the positioning hole 13 on the adjacent second template 2, connecting the first template 1 and the second template 2 together in the horizontal direction, further ensuring the stability of the connection between the first template 1 and the second template 2. Under the elastic action of the spring 16, when the adjusting movable rod 9 is removed from the second cavity 6 after use, the vertical plate 11 is driven back to the initial position, thereby synchronously driving the positioning block 12 to disengage from the corresponding positioning hole 13, realizing the quick disassembly of the first template 1 and the second template 2.

[0023] A fixing rod 19 is fixed inside the second cavity 6. The fixing rod 19 passes through the vertical plate 11. The vertical plate 11 and the fixing rod 19 are slidably engaged. The spring 16 is sleeved on the outside of the fixing rod 19.

[0024] A sealing groove 20 is provided on the side of the first template 1 near the groove 3, and a sealing strip 21 is fixed on the side of the first template 1 near the protrusion 4. The sealing strip 21 and the sealing groove 20 cooperate with each other to effectively ensure the sealing of the connection between the first template 1 and the second template 2, and avoid grout leakage during the pouring process.

[0025] Inside the first cavity 5, there are two guide rods 22 fixed on one side. The guide rods 22 pass through the movable plate 8 and slide with the guide rods 22. The threads of the central threaded holes of the two movable plates 8 are opposite.

[0026] A limiting plate 23 is fixedly sleeved on the lead screw 7, and a knob 24 is rotatably mounted on the protrusion 4. The inner end of the knob 24 extends into the first cavity 5 and is fixedly connected to the first bevel gear 17.

[0027] The self-balancing adjustment system includes a central control module 100, which is electrically connected to a data processing module 200, a sensor module 300, and a self-balancing fine-tuning module 400. The sensor module 300 includes a displacement sensor unit 301 and a pressure sensor unit 302. The displacement sensor unit 301 is arranged at the four corners of the first template 1 and the second template 2, and the pressure sensor unit 302 is installed at the connection between the first template 1 and the second template 2. The displacement sensor unit 301 facilitates the monitoring of the settlement of the first template 1 and the second template 2, and the pressure sensor unit 302 monitors the load distribution in real time, thereby achieving the purpose of monitoring the lateral pressure of the first template 1 and the second template 2.

[0028] The self-balancing fine-tuning module 400 includes a horizontal fine-tuning cylinder unit 401 and a vertical fine-tuning cylinder unit 402. The self-balancing fine-tuning module 400 is mounted on the first template 1 and the second template 2. The horizontal fine-tuning cylinder unit 401 is positioned along the direction perpendicular to the arch rib axis, and the vertical fine-tuning cylinder unit 402 is positioned vertically. The bottoms of both the horizontal fine-tuning cylinder unit 401 and the vertical fine-tuning cylinder unit 402 are mounted on a support frame at the bottom of the template. The horizontal fine-tuning cylinder unit 401 facilitates the movement of the template along a direction perpendicular to the arch rib axis. The vertical fine-tuning cylinder unit 402 drives the template to move vertically. Through the cooperation of the horizontal fine-tuning cylinder unit 401 and the vertical fine-tuning cylinder unit 402, the template can be precisely adjusted in spatial position and posture, ensuring that the template and the arch rib design dimensions and curvature height match, thus achieving the purpose of fine-tuning the template. This effectively solves the problem that traditional template systems lack dynamic adjustment capabilities and cannot cope with settlement deformation and pressure fluctuations during the pouring process. It also adaptively adjusts the template self-balancing during the pouring process, which can easily lead to problems such as concrete cracking and surface defects.

[0029] Example:

[0030] During the construction of the arch rib of the arch bridge, when it is necessary to connect and fix adjacent templates, first bring the second template 2 close to the first template 1 until the protrusion 4 on the second template 2 is inserted into the groove 3 on the first template 1. At this time, the rectangular groove 10 on the protrusion 4 is aligned with the corresponding through groove on the inner wall of the groove 3. The round hole on the first template 1 corresponds one-to-one with the positioning hole 13 on the second template 2 and is on the same axis. At this time, rotating the knob 24 drives the first bevel gear 17 to rotate. Under the meshing action of the first bevel gear 17 and the second bevel gear 18, the adjusting screw 7 rotates. The threaded engagement between the movable plate 8 and the screw 7, and the sliding engagement between the movable plate 8 and the guide rod 22, drive the two movable plates 8 to move away from each other stably. Through the movement of the movable plate 8, the movable insert rod 9 moves synchronously until it passes through the rectangular groove 10 and is inserted into the second cavity 6 through the through groove. This achieves the purpose of fixing the protrusion 4 on the first template 1 into the groove 3 on the adjacent second template 2, thereby achieving the purpose of vertically connecting the first template 1 and the second template 2 together, and realizing the quick connection and fixation of the first template 1 and the second template 2. When the movable rod 9 is inserted into the second cavity 6, and the movable rod 9 contacts the wedge block 15, the wedge block 15 is squeezed to one side by the mutual cooperation of the wedge surface 14 and the wedge block 15, thereby driving the vertical plate 11 to move synchronously. As the vertical plate 11 moves, the spring 16 is stretched, and at the same time, the positioning block 12 is driven to pass through the corresponding round hole and be inserted into the positioning hole 13 on the adjacent second template 2. The first template 1 and the second template 2 are quickly connected together in the horizontal direction, which further ensures the stability of the connection between the first template 1 and the second template 2. The purpose of quickly fixing the adjacent first template 1 and the second template 2 together is achieved without the need to use multiple bolts for fixing, saving manpower. After use, by rotating the knob 24 in the opposite direction, when the movable insert 9 moves out of the second cavity 6, the spring 16 will cause the vertical plate 11 to return to its initial position, and then simultaneously cause the positioning block 12 to disengage from the corresponding positioning hole 13, thus realizing the quick disassembly of the first template 1 and the second template 2. This solves the problem that in traditional template systems, adjacent templates need to be fixed with multiple bolts during use, which increases the workload of workers and makes the splicing and fixing of the templates and the disassembly after use more troublesome, affecting the construction progress.

[0031] During the pouring process, the load distribution is monitored in real time by the pressure sensor unit 302 to monitor the lateral pressure of the first template 1 and the second template 2. When the lateral pressure exceeds 300kN, or when the settlement of the first template 1 and the second template 2 reaches 4mm as detected by the displacement sensor unit 301, the monitoring data is transmitted to the central control module 100 under the action of the data processing module 200. The central control module 100 drives the horizontal fine-tuning cylinder unit 401 and the vertical fine-tuning cylinder unit 402. The horizontal fine-tuning cylinder unit 401 drives the template to move in a direction perpendicular to the axis of the arch rib, and the vertical fine-tuning cylinder unit 402 drives the template to move in a vertical direction. This achieves precise adjustment of the template in terms of spatial position and posture, ensuring that the template and the arch rib design dimensions and curvature height match. This achieves the purpose of fine-tuning the template and effectively solves the problem that traditional template systems lack dynamic adjustment capabilities, cannot cope with settlement deformation and pressure fluctuations during the pouring process, and cannot adaptively adjust the template self-balancing during the pouring process, which can easily lead to concrete cracking and surface defects.

[0032] It should be further noted that the installation structure, connection method, or setting method of each component in this invention are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A self-balancing arch bridge arch rib segmental casting formwork system, comprising a first formwork (1) and a second formwork (2), wherein the first formwork (1) and the second formwork (2) have identical structures, characterized in that, The first template (1) has a groove (3) on one side away from the pouring cavity. A protrusion (4) is fixed on the first template (1). The protrusion (4) cooperates with the groove (3). A connecting component is provided between the protrusion (4) and the groove (3). The connecting component includes: The lead screw (7) has a first cavity (5) inside the protrusion (4). The first template (1) has two second cavities (6) opposite each other on the side near the groove (3). The lead screw (7) is rotatably disposed inside the first cavity (5). The inner wall of the first cavity (5) has two rectangular grooves (10) through which it passes. The inner wall of the second cavity (6) has a through groove on the side near the groove (3). The lead screw (7) has two movable plates (8) threaded on it. The two movable plates (8) are fixed with movable insert rods (9) on the side away from each other. The movable insert rods (9) cooperate with the rectangular grooves (10) and the through grooves. The lead screw (7) is fixedly sleeved with a second bevel gear (18). The second bevel gear (18) meshes with a first bevel gear (17) on one side. Both the first template (1) and the second template (2) are equipped with a self-balancing adjustment system.

2. The self-balancing arch bridge arch rib segmental casting formwork system according to claim 1, characterized in that, The connecting assembly also includes a vertical plate (11), which is movably disposed inside the second cavity (6). The inner wall of the second cavity (6) has several round holes on the outer side. The first template (1) has several positioning holes (13) on the side near the protrusion (4). Several positioning blocks (12) are fixed on the outer side of the vertical plate (11). The positioning blocks (12) cooperate with the round holes and the positioning holes (13). The movable insert (9) has a wedge-shaped surface (14) at the end away from the movable plate (8). A wedge-shaped block (15) is fixed on the side of the vertical plate (11) away from the positioning block (12). The wedge-shaped surface (14) cooperates with the wedge-shaped block (15). A spring (16) is fixed between the side of the vertical plate (11) near the wedge-shaped block (15) and the second cavity (6).

3. The self-balancing arch bridge arch rib segmental casting formwork system according to claim 2, characterized in that, A fixing rod (19) is fixed inside the second cavity (6). The fixing rod (19) passes through the vertical plate (11). The vertical plate (11) and the fixing rod (19) are slidably engaged. The spring (16) is sleeved on the outside of the fixing rod (19).

4. The self-balancing arch bridge arch rib segmental casting formwork system according to claim 3, characterized in that, The first template (1) has a sealing groove (20) on the side near the groove (3), and a sealing strip (21) is fixed on the side of the first template (1) near the protrusion (4). The sealing strip (21) and the sealing groove (20) cooperate with each other.

5. The self-balancing arch bridge arch rib segmental casting formwork system according to claim 4, characterized in that, Two guide rods (22) are fixed to one side inside the first cavity (5). The guide rods (22) pass through the movable plate (8). The movable plate (8) and the guide rods (22) are in sliding fit. The thread directions of the central threaded holes of the two movable plates (8) are opposite.

6. The self-balancing arch bridge arch rib segmental casting formwork system according to claim 5, characterized in that, A limiting plate (23) is fixedly sleeved on the lead screw (7), and a knob (24) is rotatably mounted on the protrusion (4). The knob (24) extends to the inside of the first cavity (5) and is fixedly connected to the first bevel gear (17).

7. The self-balancing arch bridge arch rib segmental casting formwork system according to claim 1, characterized in that, The self-balancing adjustment system includes a central control module (100), which is electrically connected to a data processing module (200), a sensor module (300), and a self-balancing fine-tuning module (400). The sensor module (300) includes a displacement sensor unit (301) and a pressure sensor unit (302). The displacement sensor unit (301) is arranged at the four corners of the first template (1) and the second template (2), and the pressure sensor unit (302) is installed at the connection between the first template (1) and the second template (2).

8. The self-balancing arch bridge arch rib segmental casting formwork system according to claim 7, characterized in that, The self-balancing fine-tuning module (400) includes a horizontal fine-tuning cylinder unit (401) and a vertical fine-tuning cylinder unit (402). The self-balancing fine-tuning module (400) is set on the first template (1) and the second template (2). The horizontal fine-tuning cylinder unit (401) is set along the direction of the vertical arch rib axis, and the vertical fine-tuning cylinder unit (402) is set in the vertical direction. The bottoms of the horizontal fine-tuning cylinder unit (401) and the vertical fine-tuning cylinder unit (402) are both installed on the support frame at the bottom of the template.

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