Anti-loosening structure of ship flange connection

By designing an anti-loosening structure for ship flange connections, and utilizing the cooperation of the first and second clamping parts, combined with a locking mechanism and an assisting mechanism, the problem of loosening of ship flange connections in harsh environments has been solved, achieving higher connection stability and safety.

CN224339681UActive Publication Date: 2026-06-09JINMAI SHIP ENGINEERING TECHNOLOGY (NANTONG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINMAI SHIP ENGINEERING TECHNOLOGY (NANTONG) CO LTD
Filing Date
2025-08-14
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Ship flange connections are prone to loosening in harsh environments, leading to leaks and structural failures. Existing anti-loosening structures are unreliable and insufficient under extreme conditions, failing to meet the requirements.

Method used

An anti-loosening structure for marine flange connections is adopted. Through the cooperation of the first and second clamping parts, combined with the design of locking mechanism, assisting mechanism and pin, a tight fixation is formed, reducing the shear force of flange bolts and reducing lateral displacement.

Benefits of technology

It effectively reduces the loosening of flange connections, improves installation and disassembly efficiency, enhances the stability and safety of connections, and reduces the risk of loosening caused by water flow or hull swaying.

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Abstract

The utility model discloses a kind of anti-loosening structures of ship flange connection, including flange, first embracing piece, second embracing piece, extension pressing plate, locking mechanism and power-assisted mechanism;The locking mechanism is adapted to each other by first fitting part and second fitting part, and the close fixing of flange is realized by bolt and positioning hole, the power-assisted mechanism includes rotating part, support part, first operating lever and second operating lever, provide convenient installation and disassembly function;The utility model simple structure, reasonable in design, by the cooperation of first embracing piece and second embracing piece, effectively reduce the shear force of flange bolt, reduce the transverse displacement caused by water flow or ship body sway, ensure that flange connection is more stable and reliable, in addition, by the setting of power-assisted mechanism, installation and disassembly operation are more relaxed, significantly improve work efficiency, and prolong the service life of equipment.
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