Concrete construction support frame for large-span bird arch bridge

Abstract

The utility model relates to the technical field of concrete construction supporting frames, in particular to a large-span bird arch bridge concrete construction supporting frame which comprises a concrete pouring supporting frame, a mounting plate is arranged on the surface of the concrete pouring supporting frame, and a triangular supporting frame is arranged on the surface of the concrete pouring supporting frame. The concrete pouring supporting frame is connected with the mounting plate, the mounting plate is mounted on the surface of the concrete pouring supporting frame after the fixing shaft is rotated, the damping torsional spring deforms along with the mounting plate, the damping torsional spring is restored to the original shape to drive the limiting clamping plate to clamp the mounting plate, and the adjusting rotating handle rotates to drive the clockwise threaded rod to rotate. A clockwise threaded rod rotates to drive a limiting connecting rod and an anticlockwise threaded rod to rotate, so that a second fixed clamping plate is driven to move, the first fixed clamping plate and the second fixed clamping plate move oppositely to clamp and fix the mounting plate, otherwise, the mounting plate can be detached, and the effect of facilitating mounting and dismounting is achieved.

Description

Technical Field

[0001] This utility model relates to the field of concrete construction support frame technology, specifically a concrete construction support frame for a large-span bird arch bridge. Background Technology

[0002] A long-span bird arch bridge is a bridge structure in which the two side spans are half-span cantilevered arches and the main span is a mid-span steel-concrete composite arch. The main span is balanced by cables anchored to the ends of the two side spans. Its span is usually greater than 100 meters.

[0003] The "Bird Arch Bridge" is a figurative name for a type of tied-arch bridge with a rigid frame. Its structural features visually resemble a bird spreading its wings, hence the name. Long-span Bird Arch Bridges not only have an aesthetically pleasing design but also possess strong load-bearing capacity and stability, making them suitable for crossing wide bodies of water or important transportation routes. During construction, concrete construction supports are needed to support the bridge when pouring concrete. However, when using existing concrete construction supports, they are usually welded or bolted to the triangular support frame, making disassembly and installation inconvenient. Damage to one support frame requires replacing the entire support frame, resulting in high costs. Summary of the Invention

[0004] The purpose of this utility model is to provide a concrete construction support frame for a large-span bird arch bridge, in order to solve the problem mentioned in the background art that when the concrete construction support frame is used, it is usually welded or bolted to the triangular support frame, which makes disassembly and installation inconvenient.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete construction support frame for a large-span bird arch bridge, comprising a concrete pouring support frame, an mounting plate on the surface of the concrete pouring support frame, a triangular support frame on the surface of the concrete pouring support frame, an adjusting handle rotatably connected to the surface of the concrete pouring support frame, a clockwise threaded rod fixedly connected to the surface of the adjusting handle, a first limiting rotating block fixedly connected to the surface of the clockwise threaded rod, a first fixing clamp threaded onto the surface of the clockwise threaded rod, a limiting connecting rod fixedly connected to the end of the clockwise threaded rod away from the adjusting handle, and a counterclockwise threaded rod fixedly connected to the end of the limiting connecting rod away from the clockwise threaded rod. A second limiting rotating block is fixedly connected to the end away from the limiting connecting rod. A second fixing clamp is threadedly sleeved on the surface of the counterclockwise threaded rod. A fixing shaft is fixedly connected to the surface of the mounting plate. A damping torsion spring is wound around the surface of the fixing shaft. A limiting clamp is rotatably connected to the surface of the fixing shaft. A guide rod is fixedly connected to the surface of the concrete pouring support frame. A buckle is fixedly connected to the surface of the guide rod. A connecting plug is fixedly connected to the end of the concrete pouring support frame away from the guide rod. A fixing plate is fixedly connected to the surface of the concrete pouring support frame. An adjusting rod is movably connected to the surface of the fixing plate. A damping spring is wound around the surface of the adjusting rod. A plug plate is fixedly connected to the end of the concrete pouring support frame away from the fixing plate.

[0006] Preferably, the clockwise threaded rod is rotatably connected to the surface of the concrete pouring support frame via an adjusting handle, the first limiting block is rotatably connected to the surface of the adjusting handle via the clockwise threaded rod, and the first fixing clamp is movably connected to the surface of the concrete pouring support frame via the clockwise threaded rod.

[0007] Preferably, the limiting connecting rod is rotatably connected to the surface of the concrete pouring support frame via a clockwise threaded rod, the counterclockwise threaded rod is rotatably connected to the surface of the concrete pouring support frame via the limiting connecting rod, the second limiting rotating block is rotatably connected to the surface of the concrete pouring support frame via a counterclockwise threaded rod, and the second fixing clamp is movably connected to the surface of the concrete pouring support frame via a counterclockwise threaded rod.

[0008] Preferably, the first fixing clamp is connected to the surface of the mounting plate by a clockwise threaded rod, the second fixing clamp is connected to the surface of the mounting plate by a counterclockwise threaded rod, and the mounting plate is connected to the surface of the first fixing clamp and the second fixing clamp.

[0009] Preferably, the fixed shafts are symmetrically distributed in two sets on the surface of the mounting plate, and the two ends of the damping torsion spring are fixedly connected to the surface of the fixed shafts and the inside of the limiting clamp. The limiting clamp is rotatably connected to the surface of the mounting plate through the fixed shafts, and the limiting clamp is abuttingly connected to the surface of the mounting plate through the damping torsion spring.

[0010] Preferably, the concrete pouring support frame has the same structure as the triangular support frame. The guide rods are arranged in two symmetrical groups on the surface of the triangular support frame. The buckles are evenly distributed on the surface of the guide rods. The connecting blocks are arranged in two symmetrical groups on the surface of the concrete pouring support frame. The guide rods are connected by interlocking with the surfaces of the triangular support frame and the connecting blocks. The buckles are connected by abutting with the inside of the guide rods and the connecting blocks.

[0011] Preferably, the fixing plates are arranged in two groups acting on the surface of the adjusting rod, the two ends of the damping spring are fixedly connected to the surfaces of the fixing plates and the adjusting rod, the adjusting rod is movably connected to the surfaces of the fixing plates and the adjusting handle, and the adjusting rod is connected to the surfaces of the plug-in plate by the damping spring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By connecting the concrete pouring support frame and the mounting plate, and connecting the fixed shaft and the limiting clamp, the fixed shaft is rotated and the mounting plate is then installed on the surface of the concrete pouring support frame. The damping torsion spring follows the deformation. Through the connection between the damping torsion spring and the limiting clamp, the damping torsion spring returns to its original shape, causing the limiting clamp to hold the mounting plate and restrict its position. Then, by adjusting the throttle and connecting the clockwise threaded rod, and connecting the clockwise threaded rod and the first fixed clamp, the throttle rotation can drive the clockwise threaded rod to rotate, thereby moving the first fixed clamp. Through the connection between the first fixed clamp and the limiting connecting rod, and the connection between the counterclockwise threaded rod and the second limiting rotating block, the clockwise threaded rod rotation drives the limiting connecting rod and the counterclockwise threaded rod to rotate, thereby moving the second fixed clamp. The first fixed clamp and the second fixed clamp move towards each other to clamp and fix the mounting plate. Conversely, the mounting plate can be disassembled, achieving the effect of easy installation and disassembly.

[0014] 2. By connecting the guide rod and the connecting block, and by connecting the buckle and the connecting block, the triangular support frame is installed on the side of the concrete pouring support frame. The guide rod is inserted into the connecting block, and the connecting block increases the connection strength between the guide rod and the connecting block. Then, by adjusting the connection between the tie rod and the fixing plate, the adjustment tie rod is moved to drive the damping spring to deform. Then, by adjusting the connection between the tie rod and the damping spring, the connection between the tie rod and the plug plate is adjusted to loosen the restriction on the adjustment tie rod. The damping spring returns to its original shape, causing the adjustment tie rod to be inserted into the plug plate, thereby fixing the position of the concrete pouring support frame and the triangular support frame, achieving the effect of splicing multiple sets of concrete pouring support frames for use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a frontal perspective three-dimensional schematic diagram of the connection structure between the concrete pouring support frame and the mounting plate of this utility model.

[0017] Figure 3 This is a three-dimensional partial sectional view of the connection structure between the concrete pouring support frame and the adjusting handle of this utility model.

[0018] Figure 4 This is a three-dimensional partial sectional view of the connection structure between the mounting plate and the limiting clamping plate of this utility model;

[0019] Figure 5 This is a three-dimensional partial sectional view of the connection structure between the concrete pouring support frame and the triangular support frame of this utility model.

[0020] In the diagram: 1. Concrete pouring support frame; 11. Mounting plate; 12. Triangular support frame; 2. Adjusting handle; 21. Clockwise threaded rod; 22. First limiting rotating block; 23. First fixing clamp; 24. Limiting connecting rod; 25. Counterclockwise threaded rod; 26. Second limiting rotating block; 27. Second fixing clamp; 28. Fixing shaft; 29. ​​Damping torsion spring; 210. Limiting clamp; 3. Guide rod; 31. Buckle; 32. Connecting plug; 33. Fixing plate; 34. Adjusting rod; 35. Damping spring; 36. Plug plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5 As shown, a concrete construction support frame for a long-span bird arch bridge includes a concrete pouring support frame 1, used to support the concrete pouring process during the construction of the arch bridge. An mounting plate 11 is provided on the surface of the concrete pouring support frame 1 for supporting the concrete pouring support frame 1. A triangular support frame 12 is provided on the surface of the concrete pouring support frame 1 for splicing the support frame. An adjusting handle 2 is rotatably connected to the surface of the concrete pouring support frame 1, used to drive a clockwise threaded rod 21 to rotate. The clockwise threaded rod 21 is fixedly connected to the surface of the adjusting handle 2, used to drive the limiting connecting rod 24 to rotate while simultaneously moving the first fixed clamping plate 23. The surface of the clockwise threaded rod 21 is fixed... A first limiting block 22 is connected to limit the rotation position of the clockwise threaded rod 21. A first fixing plate 23 is threadedly fitted onto the surface of the clockwise threaded rod 21 to cooperate with the second fixing plate 27 to clamp and fix the mounting plate 11. A limiting connecting rod 24 is fixedly connected to the end of the clockwise threaded rod 21 away from the adjusting handle 2 to limit the movement position of the first fixing plate 23 and the second fixing plate 27. A counterclockwise threaded rod 25 is fixedly connected to the end of the limiting connecting rod 24 away from the clockwise threaded rod 21 to drive the second fixing plate 27 to move. A second limiting block 26 is fixedly connected to the end of the counterclockwise threaded rod 25 away from the limiting connecting rod 24 to limit the counterclockwise rotation position. The rotation position of the threaded rod 25 is such that a second fixing clamping plate 27 is threadedly connected to the surface of the counterclockwise threaded rod 25, which is used to cooperate with the first fixing clamping plate 23 to clamp and fix the mounting plate 11. A fixing shaft 28 is fixedly connected to the surface of the mounting plate 11 to limit the rotation of the clamping plate 210. A damping torsion spring 29 is wound around the surface of the fixing shaft 28 to drive the limiting clamping plate 210 to clamp the mounting plate 11. The limiting clamping plate 210 is rotatably connected to the surface of the fixing shaft 28 to clamp the concrete pouring support frame 1 and limit the installation position of the mounting plate 11. A guide rod 3 is fixedly connected to the surface of the concrete pouring support frame 1 to limit the connection between the concrete pouring support frame 1 and the triangular support frame 12. At the installation location, a buckle 31 is fixedly connected to the surface of the guide rod 3 to improve the connection strength between the guide rod 3 and the connecting block 32. A connecting block 32 is fixedly connected to the end of the concrete pouring support frame 1 away from the guide rod 3 for inserting the guide rod 3. A fixing plate 33 is fixedly connected to the surface of the concrete pouring support frame 1 for connecting the adjusting rod 34. An adjusting rod 34 is movably connected to the surface of the fixing plate 33 for inserting into the plug plate 36. A damping spring 35 is wound around the surface of the adjusting rod 34 to drive the adjusting rod 34 to insert into the plug plate 36. A plug plate 36 is fixedly connected to the end of the concrete pouring support frame 1 away from the fixing plate 33 for inserting the adjusting rod 34.

[0023] The clockwise threaded rod 21 is rotatably connected to the surface of the concrete pouring support frame 1 via the adjusting handle 2. The first limiting rotating block 22 is rotatably connected to the surface of the adjusting handle 2 via the clockwise threaded rod 21. The first fixed clamping plate 23 is movably connected to the surface of the concrete pouring support frame 1 via the clockwise threaded rod 21. Rotating the adjusting handle 2 can drive the clockwise threaded rod 21 and the first limiting rotating block 22 to rotate, so that the first fixed clamping plate 23 moves at the threaded part of the clockwise threaded rod 21. The limiting connecting rod 24 is rotatably connected to the surface of the concrete pouring support frame 1 via the clockwise threaded rod 21, and the counterclockwise threaded rod 25 is rotatably connected to the surface of the concrete pouring support frame 1 via the limiting connecting rod 24. The second limiting rotating block 26 is rotatably connected to the surface of the concrete pouring support frame 1 via the counterclockwise threaded rod 25. The second fixing clamp 27 is movably connected to the surface of the concrete pouring support frame 1 via the counterclockwise threaded rod 25. The rotation of the clockwise threaded rod 21 drives the limiting connecting rod 24, the counterclockwise threaded rod 25 and the second limiting rotating block 26 to rotate, so that the second fixing clamp 27 moves at the threaded part of the counterclockwise threaded rod 25. The first fixing plate 23 is connected to the surface of the mounting plate 11 by abutting through the clockwise threaded rod 21, and the second fixing plate 27 is connected to the surface of the mounting plate 11 by abutting through the counterclockwise threaded rod 25. The mounting plate 11 is connected to the surface of the first fixing plate 23 and the second fixing plate 27 by abutting through the surface of the second fixing plate 27. Since the threads on the surfaces of the clockwise threaded rod 21 and the counterclockwise threaded rod 25 are opened in opposite directions, when the clockwise threaded rod 21 and the counterclockwise threaded rod 25 rotate synchronously, they drive the first fixing plate 23 and the second fixing plate 27 to move in opposite directions, thereby making the first fixing plate 23 and the second fixing plate 27 clamp and fix the mounting plate 11.

[0024] Two sets of fixed shafts 28 are symmetrically distributed on the surface of the mounting plate 11. The two ends of the damping torsion spring 29 are fixedly connected to the surface of the fixed shaft 28 and the inside of the limiting clamp 210. The limiting clamp 210 is rotatably connected to the surface of the mounting plate 11 through the fixed shaft 28. The limiting clamp 210 is abutted to the surface of the mounting plate 11 through the damping torsion spring 29. Rotating the limiting clamp 210 can open the limiting clamp 210. The damping torsion spring 29 deforms accordingly and releases the restriction on the limiting clamp 210. The damping torsion spring 29 returns to its original shape and drives the limiting clamp 210 to clamp the concrete pouring support frame 1.

[0025] The concrete pouring support frame 1 has the same structure as the triangular support frame 12. The guide rods 3 are arranged in two symmetrical groups on the surface of the triangular support frame 12. The buckles 31 are evenly distributed on the surface of the guide rods 3. The connecting blocks 32 are arranged in two symmetrical groups on the surface of the concrete pouring support frame 1. The guide rods 3 are connected by inserting them into the surfaces of the triangular support frame 12 and the connecting blocks 32. The buckles 31 are connected by abutting the guide rods 3 and the connecting blocks 32. Multiple sets of concrete pouring support frames 1 can be installed side by side. The guide rods 3 are inserted into the connecting blocks 32 for limiting, which facilitates subsequent installation. The buckles 31 improve the connection strength. The fixing plate 33 acts on the surface of the adjusting rod 34 in two sets. The two ends of the damping spring 35 are fixedly connected to the surfaces of the fixing plate 33 and the adjusting rod 34. The adjusting rod 34 is movably connected to the surface of the fixing plate 33 and the adjusting handle 2. The adjusting rod 34 is connected to the surface of the plug plate 36 through the damping spring 35. Pulling the adjusting rod 34 causes the damping spring 35 to deform. Then, the triangular support frame 12 is installed on the side of the concrete pouring support frame 1, so that the plug plate 36 acts below the adjusting rod 34. Then, the restriction on the adjusting rod 34 is released. The damping spring 35 returns to its original shape and causes the adjusting rod 34 to be plugged into the plug plate 36, thereby fixing the concrete pouring support frame 1 and the triangular support frame 12.

[0026] Working principle: When using the concrete pouring support frame 1, the limiting clamp 210 is opened by rotating it, and the damping torsion spring 29 deforms accordingly. Then, the mounting plate 11 is installed on the back of the concrete pouring support frame 1. The limiting clamp 210 is released, and the damping torsion spring 29 returns to its original shape, causing the limiting clamp 210 to clamp the concrete pouring support frame 1. Then, the adjusting handle 2 is rotated, causing the clockwise threaded rod 21 and the counterclockwise threaded rod 25 to rotate synchronously, so that the first fixing clamp 23 and the second fixing clamp 27 move towards each other, thereby clamping and fixing the concrete pouring support frame 1. Position the mounting plate 11, then take the triangular support frame 12 and place it on the side of the concrete pouring support frame 1 for splicing. Pull the adjusting rod 34 to drive the damping spring 35 to deform, then insert the buckle 31 into the guide rod 3 to limit the concrete pouring support frame 1 and the triangular support frame 12. Then release the restriction on the adjusting rod 34, and the damping spring 35 will return to its original shape, causing the adjusting rod 34 to be inserted into the insertion plate 36, thereby fixing the position of the triangular support frame 12 and completing the splicing. Then repeat the above steps to splice multiple sets.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A concrete construction support frame for a long-span bird arch bridge, comprising a concrete pouring support frame (1), characterized in that: The surface of the concrete pouring support frame (1) is provided with an installation plate (11), the surface of the concrete pouring support frame (1) is provided with a triangular support frame (12), the surface of the concrete pouring support frame (1) is rotatably connected with an adjustment handle (2), the surface of the adjustment handle (2) is fixedly connected with a clockwise threaded rod (21), the surface of the clockwise threaded rod (21) is fixedly connected with a first limiting rotating block (22), the surface of the clockwise threaded rod (21) is threadedly fitted with a first fixing clamp (23), the end of the clockwise threaded rod (21) away from the adjustment handle (2) is fixedly connected with a limiting connecting rod (24), the end of the limiting connecting rod (24) away from the clockwise threaded rod (21) is fixedly connected with a counterclockwise threaded rod (25), the end of the counterclockwise threaded rod (25) away from the limiting connecting rod (24) is fixedly connected with a second limiting rotating block (26), the counterclockwise threaded rod (25) The surface of the mounting plate (11) is threaded with a second fixing clamp (27), the surface of the mounting plate (11) is fixedly connected with a fixing shaft (28), the surface of the fixing shaft (28) is wound with a damping torsion spring (29), the surface of the fixing shaft (28) is rotatably connected with a limit clamp (210), the surface of the concrete pouring support frame (1) is fixedly connected with a guide rod (3), the surface of the guide rod (3) is fixedly connected with a buckle (31), the end of the concrete pouring support frame (1) away from the guide rod (3) is fixedly connected with a connecting plug (32), the surface of the concrete pouring support frame (1) is fixedly connected with a fixing plate (33), the surface of the fixing plate (33) is movably connected with an adjusting rod (34), the surface of the adjusting rod (34) is wound with a damping spring (35), and the end of the concrete pouring support frame (1) away from the fixing plate (33) is fixedly connected with a plug plate (36).

2. The concrete construction support frame for a large-span bird arch bridge according to claim 1, characterized in that: The clockwise threaded rod (21) is rotatably connected to the surface of the concrete pouring support frame (1) via the adjusting handle (2), the first limiting block (22) is rotatably connected to the surface of the adjusting handle (2) via the clockwise threaded rod (21), and the first fixed clamp (23) is movably connected to the surface of the concrete pouring support frame (1) via the clockwise threaded rod (21).

3. The concrete construction support frame for a large-span bird arch bridge according to claim 1, characterized in that: The limiting connecting rod (24) is rotatably connected to the surface of the concrete pouring support frame (1) via the clockwise threaded rod (21), the counterclockwise threaded rod (25) is rotatably connected to the surface of the concrete pouring support frame (1) via the limiting connecting rod (24), the second limiting rotating block (26) is rotatably connected to the surface of the concrete pouring support frame (1) via the counterclockwise threaded rod (25), and the second fixing clamp (27) is movably connected to the surface of the concrete pouring support frame (1) via the counterclockwise threaded rod (25).

4. The concrete construction support frame for a large-span bird arch bridge according to claim 1, characterized in that: The first fixing plate (23) is connected to the surface of the mounting plate (11) by a clockwise threaded rod (21), and the second fixing plate (27) is connected to the surface of the mounting plate (11) by a counterclockwise threaded rod (25). The mounting plate (11) is connected to the surface of the first fixing plate (23) and the second fixing plate (27).

5. The concrete construction support frame for a large-span bird arch bridge according to claim 1, characterized in that: The fixed shaft (28) is symmetrically distributed in two groups on the surface of the mounting plate (11). The two ends of the damping torsion spring (29) are fixedly connected to the surface of the fixed shaft (28) and the inside of the limiting clamp (210). The limiting clamp (210) is rotatably connected to the surface of the mounting plate (11) through the fixed shaft (28) and the limiting clamp (210) is abutted to the surface of the mounting plate (11) through the damping torsion spring (29).

6. The concrete construction support frame for a large-span bird arch bridge according to claim 1, characterized in that: The concrete pouring support frame (1) has the same structure as the triangular support frame (12). The guide rods (3) are arranged in two symmetrical groups on the surface of the triangular support frame (12). The buckles (31) are evenly distributed on the surface of the guide rods (3). The connecting blocks (32) are arranged in two symmetrical groups on the surface of the concrete pouring support frame (1). The guide rods (3) are connected by interlocking on the surfaces of the triangular support frame (12) and the connecting blocks (32). The buckles (31) are connected by abutting between the guide rods (3) and the connecting blocks (32).

7. The concrete construction support frame for a large-span bird arch bridge according to claim 1, characterized in that: The fixed plate (33) acts on the surface of the adjusting rod (34) in two groups. The two ends of the damping spring (35) are fixedly connected to the surfaces of the fixed plate (33) and the adjusting rod (34). The adjusting rod (34) is movably connected to the surfaces of the fixed plate (33) and the adjusting handle (2). The adjusting rod (34) is connected to the surfaces of the damping spring (35) and the plug plate (36) by plugging.

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