Modularized multi-layer rotatable ship collision prevention device for bridge pier

By using a modular, multi-level, rotatable pier anti-ship collision device, the problem of piers being susceptible to impact is solved by utilizing a rotating stress-relief structure and a self-powered system, thereby achieving active protection and convenient maintenance of piers and reducing the risk of damage.

CN121896940APending Publication Date: 2026-04-21JIANGSU UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV OF SCI & TECH
Filing Date
2025-12-26
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Bridge piers are susceptible to collisions with ships and vehicles, leading to bridge damage and safety hazards. Existing technologies are insufficient to effectively protect them, and maintenance is inconvenient.

Method used

The modular, multi-level, rotatable pier anti-ship collision device achieves active early warning, multi-level unloading, energy self-sufficiency, and convenient maintenance through a multi-level rotating unloading structure, self-powered system, and modular design. It includes the synergistic effect of a spring rod unloading system, permanent magnets, power supply system, and measurement system.

Benefits of technology

It effectively reduces the direct impact of ship strikes on bridge piers, achieves proactive early warning and multi-stage unloading, reduces the risk of bridge pier damage, has self-powering capability, and is easy to maintain and inspect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a modular multi-layer rotatable bridge pier ship collision prevention device which comprises an internal device body, a multi-layer collision prevention system, a force unloading system, an energy supply system and a measurement system. The inner device body is arranged on the outer side of the pier in a sleeving mode, and the multi-layer anti-collision system is rotationally connected with the inner device body through the force unloading system. The force unloading system comprises an elastic rod force unloading system and a permanent magnet; the elastic rod force unloading system comprises an external anti-collision device connecting part, an elastic rod connecting part, an elastic rod fixing device, a buffer contact system, an elastic rod, an inter-elastic-rod connecting system, an internal fixing device and a spring. The bridge pier is protected in an up-and-down and front-and-back multi-layer suspension type defense mode; when a ship collides with a component, the component makes contact with an external anti-collision device, rotates to unload force, compresses inwards and changes the impact direction to a certain degree, a rod piece makes contact with an internal device through spring force unloading to achieve the final purpose of magnetic force unloading, and the inner side and the outer side are unloaded through a three-layer rotating system to achieve the optimal force unloading effect.
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Description

Technical Field

[0001] This invention relates to a bridge pier anti-ship collision device, and more particularly to a modular, multi-level, rotatable bridge pier anti-ship collision device. Background Technology

[0002] As the core load-bearing component of a bridge, the pier is a crucial node connecting the bridge superstructure and the foundation. Its structural safety directly determines the overall stability and traffic safety of the bridge. With the rapid development of the transportation industry, the surge in water and road traffic, and the complex influence of natural environment and human factors, the risk of bridge pier collisions continues to rise. Bridge pier collision prevention has become an important issue in ensuring the safety of transportation infrastructure and reducing loss of life and property.

[0003] With increasing shipping and road traffic volumes, the risk of collisions between ships (larger tonnage and greater numbers) and vehicles (heavy loads and dense traffic) and bridge piers is rising. Coupled with severe weather conditions such as heavy fog and strong winds, as well as issues like improper operation and the lack of early bridge anti-collision designs, the collision hazards are even more pronounced. Damage to bridge piers can lead to bridge damage or even collapse, causing casualties, huge economic losses, traffic disruptions, and impacts on logistics and people's livelihoods. As a critical transportation infrastructure, bridge safety cannot be taken lightly; therefore, bridge pier anti-collision measures are particularly necessary. Summary of the Invention

[0004] Purpose of the invention: This invention proposes a modular, multi-level, rotatable bridge pier anti-ship collision device. Through the synergistic effect of the multi-level rotating stress-relief structure, self-powered system, and modular design, it achieves anti-collision functions such as active early warning, multi-level stress relief, energy self-sufficiency, and convenient maintenance, greatly improving the anti-collision safety and practicality of bridge piers.

[0005] Technical Solution: This invention includes an internal device body, a multi-layer anti-collision system, a force-dissipating system, a power supply system, and a measurement system. The internal device body is sleeved on the outside of the bridge pier, and the multi-layer anti-collision system is rotatably connected to the internal device body through the force-dissipating system. The force-dissipating system includes a spring-loaded force-dissipating system and a permanent magnet. The spring-loaded force-dissipating system includes an external anti-collision device connection point, a spring-loaded connection point, a spring-loaded fixing device, a buffer contact system, a spring-loaded rod, a spring-loaded rod connecting system, an internal fixing device, and a spring. One end of the spring-loaded rod is connected to the outer ring anti-collision device through the external anti-collision device connection point, and the other end is connected to the buffer contact system through the spring-loaded connection point. The internal fixing device is fixed inside the spring-loaded fixing device, guiding the spring-loaded rod to make perpendicular contact with the internal device body. The spring is sleeved on the outside of the spring-loaded rod, with both ends abutting against the buffer contact system and the spring-loaded fixing device, respectively. The permanent magnet is fixed on the side of the buffer contact system near the internal device body, corresponding to the outer shell of the internal device body.

[0006] The spring-load unloading system also includes a pulley, which is installed at the bottom of the buffer contact system and slides in cooperation with the pulley track of the internal device body.

[0007] Bearings are provided at the connection points between the spring rod and the external anti-collision device, as well as at the hinge points where the spring rods connect to each other.

[0008] The main body of the internal device includes an outer shell, internal anti-collision material, electromagnets and pulley tracks; the outer shell is a ring structure, filled with internal anti-collision material, the electromagnets are arranged on the inner side wall of the outer shell, and the pulley tracks are fixed to the outer side wall of the outer shell and extend along the ring.

[0009] The multi-layer anti-collision system includes an outer ring anti-collision device and an inner ring anti-collision device. The outer ring anti-collision device consists of impact-resistant columns arranged in a ring array. The inner ring anti-collision device is located between the outer ring anti-collision device and the main body of the inner device. Both are connected to the main body of the inner device through a force-dissipating system.

[0010] The outer ring anti-collision device is made of ultra-high molecular weight polyethylene fiber, and the inner ring anti-collision device shell is made of ultra-high molecular weight polyethylene fiber laminate, with an aramid fiber / epoxy coating on the inside.

[0011] The power supply system includes a solar power generation device and a hydropower generation device; the solar power generation device is arranged in a ring on the top of the main body of the internal device, and the hydropower generation device is arranged on the bottom outside of the main body of the internal device.

[0012] The measurement system includes a ranging device, which is evenly distributed on the top of the main body of the internal device.

[0013] The power supply system is electrically connected to the measurement system and the unloading system.

[0014] The internal anti-collision material is closed-cell aluminum foam, and the outer shell is made of ultra-high molecular weight polyethylene fiber laminate.

[0015] Beneficial effects: The present invention has the following advantages:

[0016] 1) This invention adopts a multi-layered, suspended defense method for the protection of bridge piers, both above and below and front and back. When a ship hits a component, it first contacts the external anti-collision device to rotate and unload the force, compressing it inward and changing the impact direction to a certain extent. After the spring unloads the force, the rod contacts the internal device, thereby achieving the final purpose of magnetic unloading. Furthermore, the inner and outer sides are further unloaded by a three-layer rotating system to achieve the best unloading effect.

[0017] 2) The device is self-powered by hydropower and solar power. The upper part is surrounded by solar panels, and most of the area can generate electricity during the day. The lower part uses water flow to generate electricity. The electrical energy is stored in the lower device. The capacitor provides energy support for active collision avoidance, so that after the upper detection device gives a warning, it will start the device to actively unload the force and actively rotate in the tangential direction of the impact.

[0018] 3) The external anti-collision device of this device can effectively reduce the direct impact of waves on internal components and piers, and the connection between the spring rods can be disassembled and replaced. The modular design makes replacement, maintenance and testing convenient.

[0019] 4) Water conservancy facilities and solar power generation facilities can be replaced with other energy supply methods, and the number of facility layers can be increased or decreased according to usage requirements. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is the front view of the present invention;

[0022] Figure 3 This is a top view of the present invention (excluding the hydroelectric power generation system);

[0023] Figure 4 for Figure 3 AA section view;

[0024] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0025] Figure 6 for Figure 3 BB section view;

[0026] Figure 7 This is a schematic diagram of the spring rod unloading system of the present invention;

[0027] Figure 8 This is a partial schematic diagram of the spring rod unloading system of the present invention;

[0028] Figure 9 This is a schematic diagram of the hydroelectric power generation device of the present invention;

[0029] Figure 10 This is a schematic diagram of the solar power generation device of the present invention. Detailed Implementation

[0030] The invention will now be further described with reference to the accompanying drawings.

[0031] like Figures 1-10As shown, the modular multi-level rotatable pier anti-ship collision device of this embodiment includes an internal device body 3, a multi-level anti-collision system, a force-relief system, a power supply system, and a measurement system; wherein, the internal device body 3 is sleeved on the outside of the pier, the multi-level anti-collision system is connected to the internal device body 3 through the force-relief system, and the power supply system is electrically connected to the measurement system and the force-relief system.

[0032] like Figures 3-5 As shown, the main body 3 of the internal device is the core load-bearing component of the device, including an electromagnet 301, a solar power generation device 302, a shell 303, an internal anti-collision material 304, and a pulley track 305. The whole device has a ring structure. The shell 303 is coaxially sleeved on the outside of the pier 1. The shell 303 is filled with the internal anti-collision material 304 and compacted and fixed. The electromagnets 301 are evenly distributed on the inner side wall, and the ring-shaped pulley track 305 is fixed on the outer side wall. The top of the shell 303 has a reserved mounting groove for fixing the solar power generation device 302 and the ranging device 5. Four mounting seats are symmetrically arranged on the bottom outer side for assembling the hydroelectric power generation device 7.

[0033] The multi-layer anti-collision system includes an outer anti-collision device 4 and an inner anti-collision device bottom 8, forming a double-layer protective structure. The outer anti-collision device 4 consists of eight impact-resistant columns arranged in a ring array on the outermost side of the device. Each column is fixed to the end of the spring rod 907 via an external anti-collision device connection 901. The inner anti-collision device bottom 8 serves as the load-bearing foundation for the inner anti-collision device. It is fixed to the bottom of the inner anti-collision device and connected to the spring rod 907, so that the inner anti-collision device is set between the outer anti-collision device 4 and the inner device body 3, and is arranged coaxially with the outer anti-collision device 4. The outer shell of the inner anti-collision device is connected to another set of spring rods 907 via the same external anti-collision device connection 901, and the inner side is coated with aramid fiber / epoxy coating. Both anti-collision components are rotatably connected to the inner device body 3 via the spring rod stress relief system 9, and maintain a preset safety gap with the inner device body 3 to avoid friction and collision during normal operation. When the electromagnet 301 is energized, it generates magnetic force, forming a non-contact support with the outer wall of the pier 1, so that the main body of the internal device 3 and the outer anti-collision components and force relief system are suspended as a whole, reducing the vibration transmission caused by direct contact; at the same time, the double-layer anti-collision structure can directly buffer the impact of water waves, avoid the waves from acting directly on the pier 1, and reduce the risk of long-term fatigue damage to the pier 1.

[0034] like Figure 7 and Figure 8As shown, the force relief system includes a spring-loaded force relief system 9, a permanent magnet 2, and a bearing 906. The spring-loaded force relief system 9 includes an external anti-collision device connection 901, a spring-loaded connection 902, a spring-loaded fixing device 903, a pulley 904, a buffer contact system 905, a spring-loaded rod 907, a spring-loaded rod connection system 908, an internal fixing device 909, and a spring 910. The internal fixing device 909 is welded and fixed inside the spring-loaded fixing device 903, guiding the spring-loaded rod 907 to make perpendicular contact with the internal device body 3. One end of the spring-loaded rod 907 is bolted to the anti-collision component through the external anti-collision device connection 901, and the other end is connected to the spring-loaded rod... The connection 902 is hinged to the buffer contact system 905, and bearings 906 are embedded in the hinge to reduce rotational friction. A spring 910 is sleeved on the outside of the spring rod 907, with its two ends abutting against the buffer contact system 905 and the spring rod fixing device 903 respectively, maintaining a slight preload in the initial state. A pulley 904 is installed at the bottom of the buffer contact system 905, which slides in conjunction with the pulley track 305 of the internal device body 3. A permanent magnet 2 is fixed on the side of the pulley 904 closest to the outer shell 303, forming a magnetic force interaction zone with the outer shell 303. Adjacent spring rods 907 are detachably connected by bolts through the spring rod connection system 908. When the device is impacted, the external device first contacts the hull, and the spring rod, compressed inward by the spring, contacts the main body. The external device and the rod are connected by bearings and can rotate, performing the first step of force dissipation. The spring further dissipates the force, transmitting it to the main device to complete the final force dissipation. The electromagnetic device ensures the safety of the bridge pier.

[0035] like Figure 9 and Figure 10 As shown, the power supply system includes a solar power generation device 302 and a hydropower generation device 7. The solar power generation device 302 is a ring array structure, which is fixed to the top of the outer shell 303 of the inner device body 3 by a detachable connector and is arranged at intervals with the ranging device 5. There are 4 sets of hydropower generation devices 7, which are symmetrically fixed on the mounting base on the bottom outer side of the outer shell 303. Their structure is adapted to the inner device body 3 to ensure that they can generate electricity stably when the water flow impacts without affecting the overall balance of the device.

[0036] The measurement system includes six sets of ranging devices 5, which are evenly arranged in a ring around the top of the outer shell 303 of the main body 3 of the internal device. They are fixed in the top mounting slot by detachable connectors. Their detection ends face the outer water area and can collect data on the distance, speed and direction of movement of surrounding ships in real time, providing accurate parameter support for collision risk assessment.

Claims

1. A modular, multi-level, rotatable bridge pier anti-ship collision device, characterized in that, The device includes an internal main body, a multi-layer anti-collision system, a force-dissipating system, a power supply system, and a measurement system. The internal main body is fitted onto the outside of the bridge pier. The multi-layer anti-collision system is rotatably connected to the internal main body via the force-dissipating system. The force-dissipating system includes a spring-loaded force-dissipating system and a permanent magnet. The spring-loaded force-dissipating system includes an external anti-collision device connection point, a spring-loaded connection point, a spring-loaded fixing device, a buffer contact system, a spring-loaded rod, a spring-loaded rod connecting system, an internal fixing device, and a spring. One end of the spring-loaded rod is connected to the outer ring anti-collision device via the external anti-collision device connection point, and the other end is connected to the buffer contact system via the spring-loaded connection point. The internal fixing device is fixed inside the spring-loaded fixing device, guiding the spring-loaded rod to make perpendicular contact with the internal main body. The spring is fitted onto the outside of the spring-loaded rod, with both ends abutting against the buffer contact system and the spring-loaded fixing device, respectively. The permanent magnet is fixed to the side of the buffer contact system near the internal main body, corresponding to the outer shell of the internal main body.

2. The modular, multi-level, rotatable bridge pier anti-ship collision device according to claim 1, characterized in that, The spring-load unloading system also includes a pulley, which is installed at the bottom of the buffer contact system and slides in cooperation with the pulley track of the internal device body.

3. The modular, multi-level, rotatable bridge pier anti-ship collision device according to claim 1, characterized in that, Bearings are provided at the connection points between the spring rod and the external anti-collision device, as well as at the hinge points where the spring rods connect to each other.

4. The modular, multi-level, rotatable bridge pier anti-ship collision device according to claim 1, characterized in that, The main body of the internal device includes an outer shell, internal anti-collision material, electromagnets and pulley tracks; the outer shell is a ring structure, filled with internal anti-collision material, the electromagnets are arranged on the inner side wall of the outer shell, and the pulley tracks are fixed to the outer side wall of the outer shell and extend along the ring.

5. The modular, multi-level, rotatable bridge pier anti-ship collision device according to claim 1, characterized in that, The multi-layer anti-collision system includes an outer ring anti-collision device and an inner ring anti-collision device. The outer ring anti-collision device consists of impact-resistant columns arranged in a ring array. The inner ring anti-collision device is located between the outer ring anti-collision device and the main body of the inner device. Both are connected to the main body of the inner device through a force-dissipating system.

6. The modular, multi-level, rotatable bridge pier anti-ship collision device according to claim 5, characterized in that, The outer ring anti-collision device is made of ultra-high molecular weight polyethylene fiber, and the inner ring anti-collision device shell is made of ultra-high molecular weight polyethylene fiber laminate, with an aramid fiber / epoxy coating on the inside.

7. The modular, multi-level, rotatable bridge pier anti-ship collision device according to claim 1, characterized in that, The power supply system includes a solar power generation device and a hydropower generation device; the solar power generation device is arranged in a ring on the top of the main body of the internal device, and the hydropower generation device is arranged on the bottom outside of the main body of the internal device.

8. The modular, multi-level, rotatable bridge pier anti-ship collision device according to claim 1, characterized in that, The measurement system includes a ranging device, which is evenly distributed on the top of the main body of the internal device.

9. The modular, multi-level, rotatable bridge pier anti-ship collision device according to claim 1, characterized in that, The power supply system is electrically connected to the measurement system and the unloading system.

10. The modular, multi-level, rotatable bridge pier anti-ship collision device according to claim 4, characterized in that, The internal anti-collision material is closed-cell aluminum foam, and the outer shell is made of ultra-high molecular weight polyethylene fiber laminate.