Ship side protection buffer mechanism

By using a buffer structure combining hydraulic damping rods and springs, and a triangularly distributed buffer linkage, the problem that existing ship side protection devices cannot dynamically adapt to impact levels is solved, achieving stability and low maintenance costs under different impact scenarios.

CN224315419UActive Publication Date: 2026-06-02SHANDONG SHANGBANG PORT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG SHANGBANG PORT CO LTD
Filing Date
2025-08-14
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing ship side protection buffer devices cannot dynamically adapt to the impact level, resulting in excessive deformation affecting stability under small impact forces, and a sharp drop in energy absorption capacity under large impact forces, failing to effectively reduce the force transmitted to the hull.

Method used

The system employs a combination of hydraulic damping rods and springs in its buffer structure, along with triangularly distributed buffer links, to create multi-directional force dispersion, adapting to collision scenarios of varying magnitudes. The wear-resistant plates are replaceable via threaded connections, and telescopic bellows protect the internal components.

Benefits of technology

It enhances the dynamic adaptability of the buffer, enabling it to withstand impacts ranging from minor scrapes to severe collisions, reducing the risk of structural damage to the hull, lowering maintenance costs, and improving environmental adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of ship side protection buffer mechanism, it is related to ship protection component technical field, including installation bottom plate, the outer wall of installation bottom plate is fixedly connected with outer guard plate, the inside of outer guard plate is provided with pressing plate, the outer wall of pressing plate is fixedly connected with backing plate, the outer wall of one side of backing plate is installed with wear plate, hydraulic damper rod is installed between pressing plate and installation bottom plate, the outer wall of hydraulic damper rod is equipped with spring two, the utility model is formed buffer structure by hydraulic damper rod and spring two installation between pressing plate and installation bottom plate, it is realized multidirectional force dispersion in conjunction with triangular distribution buffer connecting rod, both synergic adaptation different magnitude collision scene, improve the dynamic adaptability of buffer, can be adapted to the full magnitude impact scene from slight scratch to violent collision, wherein, under small impact force, spring assembly resets quickly, under large impact force, hydraulic damper rod effectively reduces peak force, far higher than traditional rubber fender, significantly reduce the risk of hull structure damage.
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Description

Technical Field

[0001] This utility model relates to the field of ship protection components technology, and in particular to a ship side protection buffer mechanism. Background Technology

[0002] Ships inevitably face various collision threats during navigation, berthing, and operations. When docking at wharves or entering and leaving dry docks, they may collide with rigid structures such as wharf walls, bridge piers, and breakwaters. Inland waterway vessels may also collide with bridges and gates across rivers due to the influence of water flow, resulting in local dents or cracks on the side of the ship.

[0003] However, in the existing technology, the side protection and buffer of existing ships mostly adopt rubber fender protection, which has fixed performance and cannot dynamically adapt to the impact level. Under small impact force, excessive deformation may cause the ship to sway laterally, affecting the stability of docking or navigation. Under large impact force, due to elastic saturation, the energy absorption capacity drops sharply and cannot effectively reduce the force transmitted to the hull. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing ship side protection buffers mostly use rubber fenders, which have fixed performance and cannot dynamically adapt to the impact level. Under small impact forces, excessive deformation may cause the ship to sway laterally, affecting the stability of docking or navigation. Under large impact forces, the elasticity saturates and the energy absorption capacity drops sharply, making it impossible to effectively reduce the force transmitted to the hull. Therefore, this invention proposes a ship side protection buffer mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a ship side protection buffer mechanism, comprising a mounting base plate, an outer protective plate fixedly connected to the outer wall of the mounting base plate, a pressure plate disposed inside the outer protective plate, a pad fixedly connected to the outer wall of the pressure plate, a wear-resistant plate installed on one side of the outer wall of the pad, a hydraulic damping rod installed between the pressure plate and the mounting base plate, a second spring sleeved on the outer wall of the hydraulic damping rod, the two ends of the second spring being fixedly connected to the outer walls of the mounting base plate and the pressure plate respectively, and a buffer connecting rod movably installed between the outer wall of the pressure plate and the inner wall of the outer protective plate.

[0006] Preferably, three buffer links are provided, and the three buffer links are triangularly distributed outside the hydraulic damping rod. Each buffer link includes a connecting rod, a sleeve rod, a spring, and a limiting block. The connecting rod is movably connected to one end of the sleeve rod, and the limiting block is located inside the sleeve rod and fixedly connected to the end of the connecting rod.

[0007] Preferably, a spring is sleeved on the outer wall of the connecting rod, one end of the connecting rod is rotatably connected to one end of the pulling rod, and the other end of the sleeve is rotatably connected to the connecting block.

[0008] Preferably, the end face of the pad is provided with a threaded hole, and the wear-resistant plate is threadedly connected to the pad through the threaded hole.

[0009] Preferably, a telescopic corrugated pipe is fixedly connected to the outer wall of the end of the outer protective plate, and the end of the telescopic corrugated pipe is fixedly connected to the outer wall of the pad.

[0010] Preferably, an air valve is fixedly installed on the outer wall of the outer protective plate.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, a buffer structure is formed by installing a hydraulic damping rod and a spring between the pressure plate and the mounting base plate. Combined with the triangularly distributed buffer linkage, multi-directional force dispersion is achieved. The two work together to adapt to collision scenarios of different magnitudes, improving the dynamic adaptability of the buffer. It can adapt to impact scenarios of all magnitudes, from minor scratches to severe collisions. Under small impact forces, the spring assembly quickly absorbs energy and resets, while under large impact forces, the hydraulic damping rod effectively reduces the peak force, which is far higher than that of traditional rubber fenders, significantly reducing the risk of damage to the ship's structure.

[0013] 2. In this utility model, the wear-resistant plate is connected to the pad through a threaded hole. After wear, it can be disassembled and replaced separately without replacing the entire protective mechanism, thus reducing maintenance costs. At the same time, wear-resistant plates of different thicknesses / materials can be replaced according to the navigation environment to improve the adaptability of the scene. The telescopic corrugated pipe deforms with the expansion and contraction of the pad to form a closed space to protect the internal buffer components. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a ship side protection buffer mechanism is provided for this utility model;

[0015] Figure 2 This utility model provides a schematic diagram of the internal structure of the outer protective plate of a ship's side protection buffer mechanism;

[0016] Figure 3 This utility model provides a schematic diagram of the internal structure of a ship side protection buffer mechanism;

[0017] Figure 4 This utility model proposes a ship side protection buffer mechanism. Figure 3 Enlarged view of the structure at point A in the middle.

[0018] Legend: 1. Mounting base plate; 2. Outer protective plate; 3. Telescopic corrugated pipe; 4. Pad plate; 41. Threaded hole; 5. Wear-resistant plate; 6. Air valve; 7. Pressure plate; 71. Pull rod; 72. Buffer connecting rod; 721. Connecting rod; 722. Sleeve rod; 723. Spring 1; 724. Limiting block; 73. Connecting block; 74. Hydraulic damping rod; 75. Spring 2. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a ship side protection buffer mechanism, including a mounting base plate 1, an outer protective plate 2 fixedly connected to the outer wall of the mounting base plate 1, a pressure plate 7 provided inside the outer protective plate 2, a pad 4 fixedly connected to the outer wall of the pressure plate 7, a wear-resistant plate 5 installed on one side of the outer wall of the pad 4, a hydraulic damping rod 74 installed between the pressure plate 7 and the mounting base plate 1, a second spring 75 sleeved on the outer wall of the hydraulic damping rod 74, the two ends of the second spring 75 being fixedly connected to the outer walls of the mounting base plate 1 and the pressure plate 7 respectively, and a buffer connecting rod 72 movably installed between the outer wall of the pressure plate 7 and the inner wall of the outer protective plate 2.

[0022] The specific settings and functions of this embodiment are described in detail below. The pressure plate 7 is movably connected to the inner wall of the outer protective plate 2 through the buffer connecting rod 72. When the collision force acts on the wear-resistant plate 5 and is transmitted to the pad plate 4, the pressure plate 7 pulls the buffer connecting rod 72 to extend and retract after being subjected to force. Combined with the triangular distribution of the buffer connecting rod 72, multi-directional force dispersion is achieved to avoid local stress concentration. The hydraulic damping rod 74 and the second spring 75 are installed between the pressure plate 7 and the mounting base plate 1 to form a two-stage buffer structure. When subjected to small impact force, the second spring 75 deforms first, quickly absorbs energy and resets, reducing ship sway. When subjected to large impact force, the hydraulic damping rod 74 extends and retracts slowly through the hydraulic oil damping effect, greatly reducing the peak impact force and avoiding instantaneous overload damage to the hull. The two work together to adapt to collision scenarios of different magnitudes and improve the dynamic adaptability of the buffer.

[0023] Example 2: Figure 1 - Figure 4As shown, three buffer links 72 are provided, and the three buffer links 72 are triangularly distributed outside the hydraulic damping rod 74. The buffer link 72 includes a connecting rod 721, a sleeve rod 722, a spring 723, and a limiting block 724. The connecting rod 721 is movably connected to one end of the outer wall of the sleeve rod 722. The limiting block 724 is located inside the sleeve rod 722 and is fixedly connected to the end of the connecting rod 721. The outer wall of the connecting rod 721 is sleeved with the spring 723. One end of the connecting rod 721 is rotatably connected to one end of the traction rod 71, and the other end of the sleeve rod 722 is rotatably connected to the connecting block 73. The end face of the pad 4 is provided with a threaded hole 41. The wear-resistant plate 5 is threadedly connected to the pad 4 through the threaded hole 41. The outer wall of the outer protective plate 2 is fixedly connected with a telescopic bellows 3. The end of the telescopic bellows 3 is fixedly connected to the outer wall of the pad 4. An air valve 6 is fixedly installed on the outer wall of the outer protective plate 2.

[0024] The overall effect of this embodiment is that the three buffer rods 72 are triangularly distributed, forming an elastic buffer structure through the combination of connecting rod 721, sleeve rod 722, and spring 723. The pad 4 acts as a force transmission medium, uniformly transmitting the impact force borne by the wear-resistant plate 5 to the pressure plate 7. The wear-resistant plate 5 is made of high manganese steel, which is in direct contact with the impact object, resisting wear and puncture by sharp objects, reducing the frequency of daily maintenance. The wear-resistant plate 5 is connected to the pad 4 through the threaded hole 41, and can be disassembled and replaced separately after wear, without the need to replace the entire protective mechanism, thus reducing maintenance costs. At the same time, wear-resistant plates 5 of different thicknesses / materials can be replaced according to the navigation environment to improve scene adaptability. The telescopic corrugated pipe 3 connects the outer protective plate 2 and the pad 4, and deforms with the extension and contraction of the pad 4 to form a closed space to protect the internal buffer components.

[0025] The operating method and working principle of this device are as follows: When a ship's side encounters a collision, the impact force first acts on the wear-resistant plate 5, and is transmitted to the pressure plate 7 via the pad 4. The pressure plate 7, under pressure, moves towards the mounting base plate 1, simultaneously pulling the three buffer rods 72. The connecting rod 721 extends inside the sleeve rod 722, compressing the first spring 723 to absorb energy and disperse the lateral impact force; simultaneously, the second spring 75 and the hydraulic damping rod 74 are compressed. The second spring 75 provides instantaneous elastic buffering, while the hydraulic damping rod 74 slowly releases energy through damping, significantly reducing the peak impact force. After the collision, the restoring force of the first spring 723 and the second spring 75 pushes the pressure plate 7 and the buffer rods 72 back to their initial state, and the hydraulic damping rod 74 simultaneously resets, restoring the entire mechanism to its standby state. The telescopic bellows 3 extends and retracts with the movement of the pad 4, always maintaining an internal seal. The air valve 6 balances the air pressure to prevent seal failure, ensuring stable operation of the buffer assembly in harsh environments.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A ship side protection buffer mechanism, comprising a mounting base plate (1), characterized in that: An outer protective plate (2) is fixedly connected to the outer wall of the mounting base plate (1). A pressure plate (7) is provided inside the outer protective plate (2). A pad (4) is fixedly connected to the outer wall of the pressure plate (7). A wear-resistant plate (5) is installed on one side of the outer wall of the pad (4). A hydraulic damping rod (74) is installed between the pressure plate (7) and the mounting base plate (1). A second spring (75) is sleeved on the outer wall of the hydraulic damping rod (74). The two ends of the second spring (75) are fixedly connected to the outer walls of the mounting base plate (1) and the pressure plate (7), respectively. A buffer connecting rod (72) is movably installed between the outer wall of the pressure plate (7) and the inner wall of the outer protective plate (2).

2. The ship side protection buffer mechanism according to claim 1, characterized in that: The buffer link (72) is provided in three parts, which are triangularly distributed outside the hydraulic damping rod (74). The buffer link (72) includes a connecting rod (721), a sleeve rod (722), a spring (723), and a limiting block (724). The connecting rod (721) is movably connected to one end of the sleeve rod (722). The limiting block (724) is located inside the sleeve rod (722) and is fixedly connected to the end of the connecting rod (721).

3. A ship side protection buffer mechanism according to claim 2, characterized in that: A spring (723) is sleeved on the outer wall of the connecting rod (721). One end of the connecting rod (721) is rotatably connected to one end of the pulling rod (71), and the other end of the sleeve rod (722) is rotatably connected to the connecting block (73).

4. A ship side protection buffer mechanism according to claim 1, characterized in that: The end face of the pad (4) is provided with a threaded hole (41), and the wear-resistant plate (5) is threadedly connected to the pad (4) through the threaded hole (41).

5. A ship side protection buffer mechanism according to claim 1, characterized in that: The outer wall of the outer protective plate (2) is fixedly connected to a telescopic corrugated pipe (3), and the end of the telescopic corrugated pipe (3) is fixedly connected to the outer wall of the pad (4).

6. A ship side protection buffer mechanism according to claim 5, characterized in that: An air valve (6) is fixedly installed on the outer wall of the outer protective plate (2).