Bridge outer side construction operation platform
By designing a construction platform on the outside of the bridge and utilizing a combination of support and suspension mechanisms, the problems of low construction efficiency and terrain limitations in existing technologies have been solved, enabling efficient construction and stable operation in complex terrain.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 19TH BUREAU GRP EAST CHINA ENG CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, subsequent work on the main bridge construction relies on construction vehicles, which is inefficient and easily limited by terrain, making it difficult to carry out normal construction operations in complex terrain.
Design a bridge exterior construction operation platform, including a support mechanism and a suspension mechanism. The support mechanism is movably installed on the top of the bridge, and the suspension mechanism is connected to the support mechanism. Driven by a winch and wire rope, the platform can move and perform multi-level operations, making it suitable for complex terrain environments.
It improves construction efficiency, reduces equipment adjustment time, provides a stable working platform, reduces the risk of working at height, is suitable for complex terrains such as mountains, rivers, and canyons, and reduces construction costs.
Smart Images

Figure CN224213143U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-speed railway construction technology, and in particular to a bridge outer construction operation platform. Background Technology
[0002] After the main construction of the high-speed railway double-track bridge (continuous beam or simply supported beam) is completed, subsequent work may include beam decoration, installation of centralized drainage pipes, and acceptance of both sides of the beam.
[0003] In the past, aerial work platforms or cranes were usually used to assist in construction. However, due to the limited effective working range of the machinery, it was often necessary to move the aerial work platforms or cranes repeatedly, which increased the cost of construction and wasted a lot of time. Moreover, it was difficult to carry out normal construction work when crossing roads or rivers. Utility Model Content
[0004] This utility model provides a construction operation platform on the outside of a bridge to solve the shortcomings of the prior art, which requires the use of construction vehicles to carry out subsequent construction of the bridge main body, resulting in low efficiency and susceptibility to terrain limitations.
[0005] This utility model provides a construction operation platform on the outside of a bridge, comprising:
[0006] A support mechanism is movably disposed on top of the bridge body along a first direction, the first direction being the length direction of the bridge body;
[0007] A suspension mechanism is located on the outside of the main body of the bridge. The suspension mechanism is connected to the support mechanism and has multiple working frames.
[0008] According to the bridge outer construction platform provided by this utility model, the suspension mechanism is provided in pairs, and the pair of suspension mechanisms are symmetrically connected to both ends of the support mechanism and located on both sides of the bridge body.
[0009] According to the bridge outer construction platform provided by this utility model, the bottom of the support mechanism is provided with a traveling wheel, and the traveling wheel makes rolling contact with the top of the bridge body.
[0010] The bridge exterior construction platform provided by this utility model also includes a drive mechanism, which comprises:
[0011] A winch is installed on the supporting mechanism;
[0012] A steel wire rope, the middle of which is wound on the drum of the winch, has two free ends of which are spaced apart at the top of the main body of the bridge along a first direction. The drum can rotate to drive the steel wire rope to be wound or unwound, thereby driving the support mechanism and the suspension mechanism to reciprocate along the first direction.
[0013] According to the bridge exterior construction platform provided by this utility model, the support mechanism includes:
[0014] Main truss;
[0015] Multiple support columns are provided, and the multiple support columns are vertically connected to the main truss. Each support column is provided with a traveling wheel at its bottom.
[0016] A diagonal brace is provided, which connects the main truss to the support column.
[0017] According to the bridge outer construction operation platform provided by this utility model, the winch is fixed on the inclined support by a bracket.
[0018] According to the bridge outer construction operation platform provided by this utility model, the inclined support is provided with a sliding groove along the first direction, and the bracket is slidably connected to the sliding groove.
[0019] According to the bridge outer construction operation platform provided by this utility model, the two sides of the work frame are provided with a first protective net.
[0020] According to the bridge exterior construction platform provided by this utility model, the suspension mechanism includes a hanger, and the hanger includes:
[0021] The first ladder is located at the top of the hanger;
[0022] The second ladder is located at the bottom of the hanger, and the distance between a pair of second ladders is less than the distance between a pair of first ladders;
[0023] A transition compartment is located between the first ladder and the second ladder. The end of the transition compartment facing the main body of the bridge has an opening that communicates with the second ladder, and the end of the transition compartment away from the main body of the bridge has an opening that communicates with the first ladder. A second protective net is provided around the transition compartment.
[0024] According to the bridge exterior construction platform provided by this utility model, a protective fence is provided on the side of the first ladder facing the main body of the bridge.
[0025] This utility model provides a bridge exterior construction platform, including a support mechanism and a suspension mechanism. The platform is directly installed on the bridge structure, without occupying ground space or requiring consideration of terrain conditions, making it particularly suitable for complex terrain environments such as mountains, rivers, and canyons. During operation, the support mechanism is movably positioned on top of the bridge structure, bearing the weight of the entire platform. This allows for convenient movement and continuous operation. When the support mechanism moves along the length of the bridge structure, it drives the suspension mechanism to move synchronously. Construction personnel do not need to repeatedly disassemble and reinstall the equipment, nor do they need to use large work vehicles such as aerial work platforms or cranes.
[0026] Furthermore, the multi-layered work platform design in the suspension mechanism can accommodate multiple construction workers at the same time, and can also carry out construction work at different heights simultaneously. It also provides a stable working platform for construction workers, reduces the risks of working at heights, facilitates construction on the sides of the bridge main body, improves work efficiency, and helps to improve construction quality. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0028] Figure 1 This is a front view of a bridge outer construction operation platform provided in an embodiment of this utility model.
[0029] Figure 2 This is a top view of a bridge exterior construction operation platform provided in an embodiment of this utility model.
[0030] Figure 3 This is a side view of a bridge exterior construction operation platform provided in an embodiment of this utility model.
[0031] Figure label:
[0032] 1. Supporting mechanism; 11. Main truss; 12. Support column; 13. Diagonal brace; 14. Slide groove;
[0033] 2. Suspension mechanism; 21. Hanging rod; 22. Base support; 23. Upright pole; 24. Ladder crossbar; 25. Work frame;
[0034] 3. Walking wheels; 4. Winch; 5. Wire rope; 6. First protective net; 7. First ladder; 7. Protective fence; 8. Second ladder; 9. Transition compartment; 10. Second protective net. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0036] The following is combined with Figures 1-3 This utility model describes a bridge exterior construction operation platform.
[0037] This utility model provides a construction operation platform on the outside of a bridge, including: a support mechanism 1 and a suspension mechanism 2.
[0038] The support mechanism 1 is movably mounted on the top of the bridge body along a first direction, which is the length direction of the bridge body; the suspension mechanism 2 is mounted on the outside of the bridge body, and is connected to the support mechanism 1. The suspension mechanism 2 is equipped with a multi-layer working frame 25.
[0039] With this design, the bridge outer construction platform provided by this utility model is directly installed on the bridge body, without occupying ground space or considering ground terrain conditions, making it particularly suitable for complex terrain environments such as mountains, rivers, and canyons. During operation, it offers advantages such as convenient mobility and continuous operation. By movably mounting the support mechanism 1 on top of the bridge body and using this support mechanism 1 to support the weight of the entire bridge outer construction platform, when the support mechanism 1 moves along the length of the bridge body, it can drive the suspension mechanism 2 to move synchronously. Construction personnel do not need to repeatedly disassemble and reinstall the equipment, nor do they need to use large work vehicles such as aerial work platforms or cranes, saving on equipment rental, transportation, and maintenance costs. It also avoids the hassle of frequently adjusting equipment positions in traditional methods, significantly improving construction efficiency.
[0040] Furthermore, the multi-layer work frame 25 in the suspension mechanism 2 can accommodate multiple construction workers at the same time and can also carry out construction work at different heights simultaneously. It also provides a stable working platform for construction workers, reduces the risk of working at heights, facilitates construction on the side of the main body of the bridge, improves work efficiency, and helps to improve construction quality.
[0041] like Figure 1As shown, preferably, a pair of suspension mechanisms 2 are provided, and the pair of suspension mechanisms 2 are symmetrically connected to both ends of the support mechanism 1 and located on both sides of the bridge body.
[0042] With this configuration, a pair of suspension mechanisms 2 are symmetrically arranged on both sides of the main body of the bridge, that is, a pair of suspension mechanisms 2 are symmetrically connected to both ends of the support mechanism 1. This makes the force on the platform more balanced, which helps to improve the stability of the platform structure and reduces the tilting or swaying problems caused by uneven force on one side. The support mechanism 1 drives the suspension mechanisms 2 on both sides to move synchronously, which can simultaneously inspect, repair or carry out construction on both sides of the bridge, expanding the construction range. Construction personnel can carry out continuous construction work on both sides of the bridge at the same time during the movement, reducing downtime, eliminating the need to repeatedly move or adjust equipment, reducing equipment operating costs and significantly improving construction efficiency.
[0043] In this embodiment, the bottom of the support mechanism 1 is provided with traveling wheels 3, which roll in contact with the top of the bridge body. That is to say, the movement of the working platform is achieved by the rolling of the traveling wheels 3 on the bridge body.
[0044] In some specific embodiments, a drive mechanism is also included, comprising a winch 4 and a wire rope 5. The winch 4 is disposed on the support mechanism 1, and the middle portion of the wire rope 5 is wound around the drum of the winch 4. The two free ends of the wire rope 5 are spaced apart at the top of the bridge body along a first direction. The drum can rotate to drive the wire rope 5 to rewind or unwind, thereby driving the support mechanism 1 and the suspension mechanism 2 to reciprocate along the first direction.
[0045] This configuration, by placing the two free ends of the wire rope 5 at intervals along the first direction on the top of the bridge body, allows the working platform to be moved quickly by controlling the rotation of the winch 4's drum to wind or unwind the wire rope 5. This drives the support mechanism 1 and suspension mechanism 2 to reciprocate along the first direction along the bridge's length, reducing the hassle of manually pushing or adjusting the platform. This also makes the force on the platform more even during movement, reducing the risk of swaying or tilting and improving construction efficiency. Because the winch 4's winding and unwinding actions are smooth, sudden acceleration or deceleration during platform movement is avoided, enhancing platform stability. Furthermore, the length of the wire rope 5 can be adjusted according to the bridge's length, enabling the platform to adapt to long-distance bridge construction operations.
[0046] In addition, since the two free ends of the wire rope 5 are spaced apart at the top of the bridge body along the first direction, it also provides a running trajectory restriction for the movement of the work platform, preventing the work platform from deviating during the movement process.
[0047] In other embodiments, the drive mechanism may include a drive motor, a drive wheel, and a driven wheel. The drive motor is mounted on the support mechanism 1. The driven wheel is coaxially arranged with the traveling wheel 3. The drive wheel and the driven wheel are connected by a transmission. The drive motor drives the drive wheel to rotate, which in turn drives the driven wheel to rotate. Ultimately, the traveling wheel 3 rotates on the top of the bridge body, thereby driving the entire working platform to move along the length of the bridge body.
[0048] Optionally, the driving wheel and the driven wheel can be one of a sprocket, a gear, or a pulley, and the driving wheel and the driven wheel can realize chain drive, gear meshing drive, and belt drive.
[0049] like Figure 1 As shown, in a specific embodiment, the support mechanism 1 includes: a main truss 11, support columns 12, and diagonal supports 13. The main truss 11, as the main load-bearing component of the support mechanism 1, can evenly distribute the load and ensure the overall stability of the platform. Multiple support columns 12 are provided, and the multiple support columns 12 are vertically connected to the main truss 11, which enhances the load-bearing capacity of the platform. Each support column 12 is provided with a walking wheel 3 at its bottom. The diagonal supports 13 are connected between the main truss 11 and the support columns 12, forming a triangular stable structure, which effectively prevents the platform from tilting or deforming during movement or operation.
[0050] Optionally, the winch 4 is fixed to the inclined support 13 by a bracket, which can make full use of the stability of the inclined support 13, avoid the shaking or tilting problems that may occur if the winch 4 is installed alone, and prevent its displacement or falling off during operation, thus improving safety. Figure 1 As shown, a pair of winches 4 are respectively mounted on two diagonal supports 13, providing the power for the movement of the entire working platform.
[0051] Preferably, the inclined support 13 is provided with a groove 14 along the first direction, and the bracket is slidably connected to the groove 14.
[0052] This design allows the winch 4's support to slide along the slide 14, facilitating position adjustment of the winch 4. The position adjustment of the winch 4 is more flexible, adapting to the movement needs of the work platform in different sections, reducing adjustment time, improving construction efficiency, and ensuring smoother winding and unwinding of the wire rope 5, thus improving the platform's movement accuracy. Furthermore, the sliding connection between the slide 14 and the support makes the winch 4 more stable during movement, reducing structural instability caused by position adjustments.
[0053] like Figure 2As shown, the chute 14 is composed of a pair of U-shaped steel beams. The length direction of the U-shaped steel beams is the same as the length direction of the bridge platform, and the two ends of the U-shaped steel beams are fixed on the inclined support 13 respectively. The grooves of the two U-shaped steel beams are arranged opposite to each other. The two ends of the support for fixing the winch 4 are slidably assembled in the grooves of the pair of U-shaped steel beams, thereby realizing the movement of the support in the chute 14 along the first direction.
[0054] Furthermore, the support frame is provided with fixing holes, and multiple bolt holes are provided in the groove of the U-shaped steel beam along the first direction. When it is moved into place, the support frame and the U-shaped steel beam are fixedly connected together by bolts passing through the fixing holes and bolt holes, thereby fixing the position of the winch 4.
[0055] In this embodiment, a first protective net 6 is provided on both sides of the work frame 25. By setting the first protective net 6, a safe working environment is provided for construction personnel, which can effectively prevent construction personnel or tools from falling from the work frame 25, reduce the risk of working at height, and reduce the probability of safety accidents during working at height.
[0056] In this embodiment, the suspension mechanism 2 includes a hanger, which includes a first ladder 7, a second ladder 8, and a transition chamber 9. The first ladder 7 is located at the top of the hanger; the second ladder 8 is located at the bottom of the hanger, and the distance between a pair of second ladders 8 is less than the distance between a pair of first ladders 7. The transition chamber 9 is located between the first ladder 7 and the second ladder 8. The end of the transition chamber 9 facing the bridge body has an opening that communicates with the second ladder 8, and the end of the transition chamber 9 away from the bridge body has an opening that communicates with the first ladder 7. A second protective net 10 is provided around the transition chamber 9.
[0057] like Figure 1 and Figure 3 As shown, the first ladder 7 is located at the upper part of the scaffold, which facilitates workers to move from the top of the bridge body to both sides of the bridge body. The second ladder 8 is located at the lower part of the scaffold, which facilitates construction workers to move from the work frame 25 to the top of the bridge body. The transition chamber 9 serves as a space connecting the first ladder 7 and the second ladder 8, which facilitates the workers to switch positions between the second ladder 8 and the first ladder 7. The transition chamber 9 is surrounded by a second protective net 10, which provides a safe moving environment for the workers and provides them with a sense of psychological security.
[0058] In this embodiment, the hanger includes a hanger 21, a base 22, an upright 23, and a ladder crossbar 24. The hanger 21 is vertically connected to the end of the main truss 11, the base 22 is vertically connected to the bottom of the hanger 21, the transition chamber 9 is a cubic frame, the top of the upright 23 is connected to the transition chamber 9, the bottom of the upright 23 is vertically connected to the base 22, the ladder crossbar 24 is vertically connected to the hanger 21, and the two ends of the first ladder 7 are vertically fixed to the upper and lower ladder crossbars 24; the work frame 25 is also a cubic structure, and a first protective net 6 is provided around it.
[0059] like Figure 2 As shown, a protective fence 71 is installed on the side of the first ladder 7 facing the main body of the bridge. The protective fence 71 provides safety for construction workers when they move down using the first ladder 7. The protective fence 71 can be an arc-shaped structure. One end of the protective fence 71 is detachably connected to the hanger, which makes it easy for construction workers to enter the protective fence 71 and use the first ladder 7 to enter the work frame 25 below.
[0060] The work platform provided by this utility model uses materials that are already available during the construction process, which can be reused without the need for material procurement, and on-site assembly is simple.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A construction work platform on the outer side of a bridge, characterized in that, include: The support mechanism (1) is movably disposed on the top of the bridge body along a first direction, the first direction being the length direction of the bridge body; The suspension mechanism (2) is located on the outside of the main body of the bridge. The suspension mechanism (2) is connected to the support mechanism (1). The suspension mechanism (2) is provided with a multi-layer working frame (25).
2. The bridge outer construction operation platform according to claim 1, characterized in that, The suspension mechanism (2) is provided in pairs, and the pair of suspension mechanisms (2) are symmetrically connected to both ends of the support mechanism (1) and located on both sides of the bridge body.
3. The bridge outer construction operation platform according to claim 1 or 2, characterized in that, The bottom of the support mechanism (1) is provided with a traveling wheel (3), which makes rolling contact with the top of the bridge body.
4. The bridge outer construction operation platform according to claim 3, characterized in that, It also includes a drive mechanism, which comprises: A winch (4) is installed on the support mechanism (1); The wire rope (5) is wound around the drum of the winch (4). The two free ends of the wire rope (5) are spaced apart at the top of the main body of the bridge along the first direction. The drum can rotate to drive the wire rope (5) to be wound or unwound, so as to drive the support mechanism (1) and the suspension mechanism (2) to move back and forth along the first direction.
5. The bridge outer construction operation platform according to claim 4, characterized in that, The support mechanism (1) includes: Main truss (11); Multiple support columns (12) are provided, and the multiple support columns (12) are vertically connected to the main truss (11). Each support column (12) is provided with a walking wheel (3) at its bottom. An oblique support (13) is provided, which is connected between the main truss (11) and the support column (12).
6. The bridge outer construction operation platform according to claim 5, characterized in that, The winch (4) is fixed to the inclined support (13) by a bracket.
7. The bridge outer construction operation platform according to claim 6, characterized in that, The inclined support (13) is provided with a sliding groove (14) along the first direction, and the bracket is slidably connected to the sliding groove (14).
8. The bridge outer construction operation platform according to claim 1, characterized in that, The work frame (25) is provided with a first protective net (6) on both sides.
9. The bridge outer construction operation platform according to claim 2, characterized in that, The suspension mechanism (2) includes a hanger, the hanger comprising: The first ladder (7) is installed at the top of the hanger; The second ladder (8) is provided at the bottom of the hanger, and the distance between a pair of second ladders (8) is less than the distance between a pair of first ladders (7); A transition chamber (9) is provided between the first ladder (7) and the second ladder (8). The end of the transition chamber (9) facing the main body of the bridge has an opening that communicates with the second ladder (8). The end of the transition chamber (9) away from the main body of the bridge has an opening that communicates with the first ladder (7). A second protective net (10) is provided around the transition chamber (9).
10. The bridge outer construction operation platform according to claim 9, characterized in that, The first ladder (7) is equipped with a protective railing (71) on the side facing the main body of the bridge.