Multifunctional bridge tower inner cavity construction platform

By adding a detachable support frame and a lifting plate with elastic connection to the construction platform inside the bridge tower cavity, the problem of easy deformation at the center of the layer plate was solved, the load-bearing capacity and safety were improved, and the needs of efficient, safe and flexible operation in bridge construction were met.

CN224412336UActive Publication Date: 2026-06-26ZHEJIANG ZHOUSHAN CROSS-SEA BRIDGE CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHOUSHAN CROSS-SEA BRIDGE CO LTD
Filing Date
2025-06-26
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The center of the existing multi-functional bridge tower internal cavity construction platform is prone to bending deformation or even instability when subjected to large loads, affecting the platform's load-bearing capacity and safety.

Method used

A detachable support frame is added between every two adjacent shelves, and a lifting plate with a vertical adjustment structure and a top plate are installed on the top of the support frame. The support frame and the shelf are detachably connected, and the lifting plate is connected to the top plate through an elastic structure. Inclined side frames are installed on both sides of the support frame to provide additional support.

Benefits of technology

This improved the platform's load-bearing capacity and safety, ensuring the stability and flexibility of construction, and enhancing construction efficiency and equipment reusability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to bridge construction equipment technical field especially relates to a kind of multi-functional bridge tower inner cavity construction platform, solve the additional support structure not being set between each layer plate in prior art, convenient to disassemble, leading to the bending deformation of layer plate central position when bearing larger load is easy to appear even instability phenomenon, seriously affect the bearing capacity and the problem of use safety of platform.The platform includes several layer plates linear array along vertical direction and are connected by support rod, staircase is installed between every two adjacent layer plates, support frame is set between every two layer plates.The utility model is by adding detachable intermediate support structure, and combining the elastic support design of lifting plate and top plate, effectively enhance the overall bearing performance and structural stability of layer plate, prevent the deformation or instability of layer plate due to load concentration, significantly improve the safety and reliability of platform, meet the demand of modernization bridge construction to efficient, safe operation platform.
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Description

Technical Field

[0001] This utility model relates to the field of bridge construction equipment technology, and in particular to a multifunctional bridge tower internal cavity construction platform. Background Technology

[0002] The bridge tower cavity refers to the enclosed or semi-enclosed space inside the main tower of a bridge, typically used to house critical facilities such as reinforced concrete structures, prestressed ducts, electromechanical equipment, and maintenance access. During bridge construction and subsequent maintenance, the work within the bridge tower cavity is complex, involving multiple processes including concrete pouring, rebar tying, component installation, and equipment maintenance. Therefore, a stable, safe, and multifunctional construction platform is needed as the core support equipment to ensure construction efficiency and personnel safety.

[0003] An existing utility model patent, CN 214530237 U, discloses a multifunctional bridge tower internal cavity construction platform, including a main frame, a material placing device, a suspension device, a material lowering channel, and other functional modules, achieving efficient integration and multi-purpose application of the construction platform within the bridge tower cavity. However, in actual use, it has been found that although the platform has the advantage of multiple functional combinations, the lack of additional, easily disassembled support structures between its various layers makes the center of the layers prone to bending deformation or even instability under large loads, seriously affecting the platform's load-bearing capacity and operational safety.

[0004] Therefore, to address the shortcomings of existing technologies, we urgently need a multifunctional bridge tower cavity construction platform to solve this problem. This new platform should retain the advantages of integration and modularity while adding a detachable intermediate support structure to improve the overall load-bearing capacity and structural reliability of the slabs. Simultaneously, it should accommodate the needs for rapid installation and disassembly, thereby better meeting the urgent requirements of modern bridge construction for efficient, safe, and flexible operating platforms, and providing strong support for technological advancements in bridge tower cavity construction. Utility Model Content

[0005] The purpose of this utility model is to provide a multifunctional bridge tower internal cavity construction platform, which solves the problem in the prior art that the lack of additional, easily disassembled support structures between each layer plate makes the center of the layer plate prone to bending deformation or even instability when subjected to large loads, seriously affecting the load-bearing capacity and safety of the platform.

[0006] To achieve the above objectives, this utility model provides a multifunctional bridge tower internal cavity construction platform, including several layers, which are arranged in a linear array along the vertical direction. The corners of the layers are connected by several support rods. A staircase is installed between every two adjacent layers, and an opening is provided at the top of each layer.

[0007] A support frame is provided between every two shelves. The bottom end of the support frame is detachably connected to the adjacent shelf. A lifting plate is provided at the top of the support frame. The lifting plate is connected to the top of the support frame through a vertical adjustment structure. A top plate is connected to the top of the lifting plate through an elastic structure. The top plate is in contact with the bottom of the adjacent shelf.

[0008] The support frame has a mounting plate at its bottom, which is bolted to the shelf and fixedly connected to the support frame.

[0009] The support frame has a lifting groove on one side, and the vertical adjustment structure includes a lifting screw installed inside the lifting groove. One end of the lifting screw is threaded through the top of the support frame and rotatably connected to the bottom of the lifting plate.

[0010] The support frame has side frames that are inclined on both sides. One end of the side frame is fixedly connected to the top of the mounting plate with bolts, and the other end is fixedly connected to the side wall of the support frame with bolts.

[0011] The support frame has sliding grooves on both sides of the top, and the lifting plate has sliding rods fixedly connected to both sides of the bottom, which slide in cooperation with the sliding grooves.

[0012] The elastic structure includes two guide rods and several compression springs. One end of each guide rod is fixedly connected to the bottom of the top plate, and the other end slides through the lifting plate. One end of each compression spring is connected to the top of the lifting plate, and the other end is connected to the bottom of the top plate. Several contact protrusions are fixedly connected to the top of the top plate.

[0013] This utility model discloses a multifunctional bridge tower internal cavity construction platform. By adding a detachable support frame between every two adjacent floor slabs, and installing a lifting plate and a top plate with a vertical adjustment structure on top of the support frame, it effectively solves the problems of insufficient load-bearing capacity, easy bending deformation, and even instability in the center of the floor slabs in the prior art. The detachable connection between the support frame and the floor slabs ensures the stability of the platform structure while taking into account the actual needs of rapid installation and disassembly, thus improving construction efficiency. The top plate is connected to the lifting plate through an elastic structure, which can act as a buffer when bearing loads, avoiding structural damage caused by rigid impacts, and further enhancing the safety and service life of the platform. In addition, the platform has a high degree of modularity and can be flexibly adjusted according to different bridge tower internal cavity dimensions, exhibiting good versatility and adaptability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is a structural schematic diagram of the support rod and the shelf in an embodiment of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the support frame and lifting groove according to an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the support frame and slide groove according to an embodiment of the present utility model.

[0019] Figure 5 This is a structural schematic diagram of the lifting plate and the top plate according to an embodiment of the present utility model.

[0020] In the diagram: 1. Support rod; 2. Shelf; 3. Support frame; 4. Lifting plate; 5. Top plate; 6. Staircase; 7. Mounting plate; 8. Side frame; 9. Lifting groove; 10. Slide groove; 11. Guide rod; 12. Contact protrusion; 13. Compression spring; 14. Slide rod; 15. Lifting screw; 16. Rotating handle. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Example 1

[0023] Please see Figure 1-5 As shown, a multifunctional bridge tower cavity construction platform of this embodiment includes several layer plates 2, which are arranged in a linear array along the vertical direction. The corners of the several layer plates 2 are connected by several support rods 1. A staircase 6 is installed between every two adjacent layer plates 2, and an opening is provided on the top of each layer plate 2.

[0024] A support frame 3 is provided between every two shelves 2. The bottom end of the support frame 3 is detachably connected to the adjacent shelf 2. A lifting plate 4 is provided on the top of the support frame 3. The lifting plate 4 is connected to the top of the support frame 3 through a vertical adjustment structure. A top plate 5 is connected to the top of the lifting plate 4 through an elastic structure. The top plate 5 is in contact with the bottom of the adjacent shelf 2.

[0025] The workflow is as follows: During the construction of the bridge tower's inner cavity, several floor slabs 2 are first arranged linearly in the vertical direction according to the construction height requirements, and connected and fixed by support rods 1 at the corners to form a stable multi-layer structure. Stairs 6 are installed between every two adjacent floor slabs 2 to provide passage for construction personnel to move up and down. A support frame 3 is set between every two floor slabs 2. The bottom end of the support frame 3 is detachably connected to the floor slab 2 of the lower layer, which can be flexibly adjusted according to the construction progress. A lifting plate 4 is set on the top of the support frame 3. The lifting plate 4 can be finely adjusted in height through a vertical adjustment structure to adapt to different construction positions and load requirements. The top of the lifting plate 4 is connected to a top plate 5 through an elastic structure. The top plate 5 contacts the bottom of the floor slab 2 of the upper layer, thereby providing effective support for the middle area of ​​the floor slab 2 and preventing bending deformation or instability due to concentrated load. After the construction is completed, the entire platform can be quickly disassembled and transferred by removing the connection structure between the support frame 3 and the floor slab 2, which greatly improves construction efficiency and equipment reuse rate.

[0026] Example 2

[0027] Please see Figure 1-5 As shown in this embodiment, a multifunctional bridge tower cavity construction platform has an installation plate 7 at the bottom of the support frame 3. The installation plate 7 is bolted to the shelf 2 and fixedly connected to the support frame 3. Specifically, by setting the installation plate 7 at the bottom of the support frame 3 and fixing the installation plate 7 to the shelf 2 with bolts, during the installation process, the operator can first fix the installation plate 7 to the shelf 2 and then connect the support frame 3 to the installation plate 7. This achieves quick assembly and disassembly between the support frame 3 and the shelf 2, thereby enhancing the structural stability and facilitating maintenance, and ensuring the overall safety of the construction platform.

[0028] Side frames 8 are inclinedly installed on both sides of the support frame 3. One end of the side frame 8 is bolted to the top of the mounting plate 7, and the other end is bolted to the side wall of the support frame 3. Specifically, by setting inclined side frames 8 on both sides of the support frame 3, and bolting one end of the side frame 8 to the top of the mounting plate 7 and the other end to the side wall of the support frame 3, the side frames 8 provide additional lateral support force for the support frame 3 during construction. This achieves the technical effect of enhancing the overall rigidity and stability of the support frame 3, preventing deformation caused by lateral force, and ensuring construction safety.

[0029] Example 3

[0030] Please see Figure 1-5As shown in the figure, a multifunctional bridge tower internal cavity construction platform of this embodiment has a lifting groove 9 on one side of the support frame 3. The vertical adjustment structure includes a lifting screw 15 set inside the lifting groove 9. One end of the lifting screw 15 is threaded through the top of the support frame 3 and rotatably connected to the bottom of the lifting plate 4. The bottom end of the lifting screw 15 is fixedly connected to a rotating handle 16. Specifically, by opening a lifting groove 9 on one side of the support frame 3 and setting the lifting screw 15 therein, the lifting plate 4 can move up and down along the lifting groove 9 and the height is locked by the lifting screw 15. When adjusting the height of the construction platform, the operator can achieve fine adjustment of the height of the lifting plate 4 by rotating the lifting screw 15, which achieves the technical effect of precisely controlling the position of the lifting plate 4 and adapting to different construction needs, thereby improving construction efficiency and flexibility.

[0031] The top of both sides of the support frame 3 is provided with sliding grooves 10, and the bottom sides of the lifting plate 4 are fixedly connected with sliding rods 14 that slide in cooperation with the sliding grooves 10. Specifically, by providing sliding grooves 10 on the top of both sides of the support frame 3 and providing sliding rods 14 that slide in cooperation with the sliding grooves 10 on the bottom sides of the lifting plate 4, the sliding rods 14 slide along the sliding grooves 10 when the lifting plate 4 moves vertically, ensuring the smooth movement of the lifting plate 4. This achieves the technical effects of improving the movement accuracy of the lifting plate 4, reducing frictional resistance, and extending the service life of the equipment.

[0032] The elastic structure includes two guide rods 11 and several compression springs 13. One end of the guide rod 11 is fixedly connected to the bottom of the top plate 5, and the other end slides through the lifting plate 4. One end of the compression spring 13 is connected to the top of the lifting plate 4, and the other end is connected to the bottom of the top plate 5. Several contact protrusions 12 are fixedly connected to the top of the top plate 5. Specifically, by setting two guide rods 11 and multiple compression springs 13, one end of the guide rod 11 is fixedly connected to the bottom of the top plate 5, and the other end slides through the lifting plate 4. The compression springs 13 are located between the lifting plate 4 and the top plate 5. When bearing a load, the top plate 5 buffers the load impact through the compression springs 13. At the same time, the guide rods 11 guide the displacement of the top plate 5. The contact protrusions 12 on the top plate 5 increase the contact area with the layer plate 2, achieving the technical effects of providing buffer protection, preventing direct impact damage to the structure, improving load-bearing capacity and comfort, and enhancing the safety and reliability of the construction platform.

[0033] The overall structure of this platform includes several shelves 2, support rods 1, stairs 6, support frames 3, lifting plates 4, top plates 5, mounting plates 7, side frames 8, lifting grooves 9, sliding grooves 10, guide rods 11, contact protrusions 12, compression springs 13, sliding rods 14, lifting screws 15, and rotating handles 16. The workflow is as follows: During the construction of the bridge tower's inner cavity, several floor slabs 2 are first arranged linearly in the vertical direction according to the construction height requirements, and connected and fixed by support rods 1 at the corners to form a stable multi-layer structure; stairs 6 are installed between every two adjacent floor slabs 2 to provide passage for construction personnel to move up and down; a support frame 3 is set between every two floor slabs 2, and the bottom of the support frame 3 is bolted to the lower floor slab 2 through an mounting plate 7, which can be flexibly adjusted according to the construction progress; a lifting groove 9 is opened on one side of the support frame 3, and a lifting screw 15 is installed inside. The lifting plate 4 can be finely adjusted in the vertical direction through the lifting screw 15, and the operator can precisely control the position of the lifting plate 4 by rotating the handle 16; both sides of the bottom of the lifting plate 4 are fixed with sliding rods 14 that slide in conjunction with the sliding grooves 10 opened on the top of both sides of the support frame 3 to ensure the stability of the lifting plate 4 when moving; the top of the lifting plate 4 is connected by a spring. The top plate 5 is connected by a flexible structure, which includes two guide rods 11 and multiple compression springs 13. One end of the guide rod 11 is fixedly connected to the bottom of the top plate 5, and the other end slides through the lifting plate 4. The compression springs 13 are located between the lifting plate 4 and the top plate 5. When bearing load, the top plate 5 buffers the load impact through the compression springs 13, while the guide rods 11 guide the displacement of the top plate 5. Several contact protrusions 12 are fixed on the top of the top plate 5, which increases the contact area with the upper layer plate 2, thereby providing effective support for the middle area of ​​the layer plate 2 and preventing it from bending deformation or instability due to concentrated load. In addition, inclined side frames 8 are set on both sides of the support frame 3. One end is fixed to the top of the mounting plate 7 and the other end is fixed to the side wall of the support frame 3 by bolts, which enhances the overall rigidity and stability of the support frame 3. After construction is completed, the entire platform can be quickly disassembled and transferred by removing the connection structure between the support frame 3 and the layer plate 2.

[0034] This utility model provides a multifunctional bridge tower internal cavity construction platform with significant technological advancements and application advantages. Firstly, by installing an mounting plate 7 at the bottom of the support frame 3 and fixing it to the shelf 2 with bolts, rapid assembly and disassembly between the support frame 3 and the shelf 2 is achieved, enhancing structural stability and maintenance convenience, and ensuring the overall safety of the construction platform. Secondly, a lifting screw 15 is installed in the lifting groove 9 on one side of the support frame 3, allowing the lifting plate 4 to move up and down along the lifting groove 9 and its height to be locked by the lifting screw 15. Operators can fine-tune the height of the lifting plate 4 by rotating the handle 16, achieving precise control of the lifting plate 4's position and adapting to different construction needs, thus improving construction efficiency and flexibility. Furthermore, inclined side frames 8 are installed on both sides of the support frame 3, and are fixedly connected to the top of the mounting plate 7 and the side wall of the support frame 3 with bolts, providing support for the support frame 3. It provides additional lateral support, enhancing overall rigidity and stability, preventing deformation due to lateral forces, and ensuring construction safety. In addition, the top of both sides of the support frame 3 has sliding grooves 10, and the bottom of the lifting plate 4 is equipped with sliding rods 14 that slide in cooperation with the sliding grooves 10, ensuring the smoothness of the lifting plate 4 during movement, improving motion accuracy, reducing frictional resistance, and extending the service life of the equipment. Finally, by setting two guide rods 11 and multiple compression springs 13, the top plate 5 buffers the load impact through the compression springs 13, while the guide rods 11 guide the displacement of the top plate 5. The contact protrusions 12 on the top plate 5 increase the contact area with the shelf 2, providing buffer protection, preventing direct impact damage to the structure, improving load-bearing capacity and comfort, and enhancing the safety and reliability of the construction platform.

[0035] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A multifunctional bridge tower internal cavity construction platform, characterized in that, include: Several shelves are arranged in a vertical linear array, and the corners of the shelves are connected by several support rods. A staircase is installed between every two adjacent shelves, and an opening is provided at the top of each shelf. A support frame is provided between every two shelves. The bottom end of the support frame is detachably connected to the adjacent shelf. A lifting plate is provided at the top of the support frame. The lifting plate is connected to the top of the support frame through a vertical adjustment structure. A top plate is connected to the top of the lifting plate through an elastic structure. The top plate is in contact with the bottom of the adjacent shelf.

2. The multifunctional bridge tower internal cavity construction platform according to claim 1, characterized in that, The bottom of the support frame is provided with a mounting plate, which is bolted to the shelf and fixedly connected to the support frame.

3. The multifunctional bridge tower internal cavity construction platform according to claim 1, characterized in that, The support frame has a lifting groove on one side, and the vertical adjustment structure includes a lifting screw installed inside the lifting groove. One end of the lifting screw is threaded through the top of the support frame and rotatably connected to the bottom of the lifting plate.

4. The multifunctional bridge tower internal cavity construction platform according to claim 2, characterized in that, The support frame has side frames installed at an angle on both sides. One end of the side frame is fixedly connected to the top of the mounting plate with bolts, and the other end is fixedly connected to the side wall of the support frame with bolts.

5. The multifunctional bridge tower internal cavity construction platform according to claim 3, characterized in that, The top of both sides of the support frame is provided with sliding grooves, and the bottom sides of the lifting plate are fixedly connected with sliding rods that slide in cooperation with the sliding grooves.

6. The multifunctional bridge tower internal cavity construction platform according to claim 5, characterized in that, The elastic structure includes two guide rods and several compression springs. One end of each guide rod is fixedly connected to the bottom of the top plate, and the other end slides through the lifting plate. One end of each compression spring is connected to the top of the lifting plate, and the other end is connected to the bottom of the top plate. Several contact protrusions are fixedly connected to the top of the top plate.