A three-way self-resetting wharf fender device

By designing a three-way self-resetting wharf fender device, and adopting a decoupled design of vertical and horizontal energy-consuming reset units, the device utilizes the friction of the ring spring component to achieve efficient energy consumption and self-resetting, thus solving the adaptive and durability problems of existing fenders under three-dimensional composite impact conditions and reducing operation and maintenance costs.

CN122236072APending Publication Date: 2026-06-19GUANGZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU UNIVERSITY
Filing Date
2026-04-28
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing wharf fenders have poor multi-directional impact adaptability, low energy efficiency, insufficient self-resetting ability, and high maintenance costs when facing three-dimensional composite impact conditions from large ships, making it difficult to adapt to complex working conditions.

Method used

The three-way self-resetting wharf fender device includes a base component, a buffer energy-absorbing component, a sleeve component, and an energy-dissipating reset component. Through the decoupling design of the vertical and horizontal energy-dissipating reset units, it utilizes the friction of the ring spring component to achieve efficient energy dissipation and self-resetting without residual deformation. Combined with the modular structure, it can adapt to multi-directional impact loads.

Benefits of technology

It achieves independent decoupling energy dissipation for vertical, horizontal, bidirectional, and tridirectional impact loads, has the ability to self-reset without residual deformation, reduces operation and maintenance costs, is highly adaptable, and is suitable for various engineering fields.

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Abstract

This invention discloses a three-way self-resetting wharf fender device, comprising a base assembly, a buffer energy-absorbing assembly, a sleeve assembly, and an energy-dissipating reset assembly. The sleeve assembly includes a coaxially nested upper and lower sleeve. The energy-dissipating reset assembly includes vertical and horizontal pre-tightened ring spring components, respectively housed within the circumferential installation space enclosed by the mounting slot of the lower sleeve and the upper and lower sleeves. This invention achieves complete decoupling of vertical and horizontal loads through the sleeve assembly. Under vertical impact, the vertical ring spring compresses and dissipates energy for self-resetting; under horizontal impact, the corresponding horizontal ring spring is compressed and dissipates energy for self-resetting. The two operate independently without interference. This device possesses advantages such as multi-directional decoupled energy dissipation, self-resetting without residual deformation, high reliability, and good durability, and can be widely used in collision protection for wharves, offshore platforms, and other engineering projects.
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