A method for extending a pier and launching ships

CN122304261APending Publication Date: 2026-06-30JIANGMEN HANGTONG SHIPBUILDING OF CCCC FOURTH HARBOR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGMEN HANGTONG SHIPBUILDING OF CCCC FOURTH HARBOR ENG CO LTD
Filing Date
2026-05-21
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional temporary piers are difficult to dismantle after a ship has moved laterally. They are limited by operating height and space, are heavy, have low dismantling efficiency, pose high safety risks, and the components are difficult to place stably after dismantling, affecting the launching process.

Method used

The rolling shaft assembly and the lifting assembly work together. After disconnecting, the lifting trestle tooling is lifted and moved out of the space under the ship. The modular design allows for easy dismantling.

Benefits of technology

It shortens dismantling time, avoids the hoisting of heavy components at height and in confined spaces, significantly improves safety and construction efficiency, and is suitable for shipyard environments with limited height and narrow spaces.

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Abstract

This application relates to the field of shipbuilding technology, and more particularly to an extended jetty and a method for launching a ship. The extended jetty includes a base, a rolling shaft assembly, jetty fixtures, and a lifting assembly. The base is arranged on a stepped surface of the slipway along the extension direction of the fixed jetty. The rolling shaft assembly is detachably mounted on top of the base, supporting the jetty fixtures and engaging with them in a rolling manner. The lifting assembly is located on the outer side of the base. The base and the jetty fixtures are connected by diagonal braces. When the connection between the rolling shaft assembly and the base is released, and the connection between the base and the jetty fixtures is also released, the lifting assembly can lift the rolling shaft assembly, so that the bottom surface of the jetty fixtures is higher than the top surface of the fixed jetty. The solution provided by this application, through the cooperation of the rolling shaft assembly and the lifting assembly, allows the jetty fixtures to be safely and conveniently lifted and moved out of the space below the ship after the connection is released, solving the problem of the difficulty in dismantling and transporting traditional temporary jetties.
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