Submarine Cable Joint Clamping Structure for Hoisting Stability

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Solution Overview

Problem

Submarine cable joints are prone to damage during installation and hoisting due to relative transfer and deformation of the submarine cable joint box, which is typically a hollow, closed shell structure covering the joint.

Innovation Solution

A submarine cable joint protection apparatus comprising an outer shell and a reinforcement assembly with pads and mounting grooves that clamp and isolate the joints, preventing movement and deformation during installation and hoisting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a hollow closed shell structure is used to cover the submarine cable joint, then the joint is protected from external forces such as ocean currents and marine life, but the joint may undergo relative transfer and deformation during installation and hoisting due to the transfer of the joint box

Engineering Contradiction:
Improveprotection of submarine cable jointVSAvoidposition stability of submarine cable joint
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The inner shell is divided into multiple segments that can be independently adjusted. Each segment can be positioned and fixed separately to match the outer shell, allowing the joint to be securely held in place while accommodating any relative transfer or deformation during installation and hoisting operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The inner shell is designed with adjustable and movable segments rather than a fixed rigid structure. This dynamic design allows the inner shell to adapt to position changes of the joint during transfer, maintaining stable support and preventing deformation while still providing protection from external forces.

Inventive Principle:
Principle #15Dynamics

2Ease of manufacture

If the submarine cable joint box is installed outside the joint after setting is completed, then the joint can be protected, but the transfer of the joint box causes relative transfer and deformation of the internal joint

Engineering Contradiction:
Improveinstallation processVSAvoidposition precision of submarine cable joint
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The inner shell segments are pre-configured with adjustment mechanisms that allow for precise positioning of the joint before the outer shell is fully assembled. This preliminary action ensures the joint is securely positioned and protected from deformation during the subsequent installation and hoisting processes.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The adjustable inner shell segments act as an intermediary between the joint and the outer shell. These segments can be fine-tuned to precisely position the joint, eliminating relative transfer and deformation while still allowing the outer shell to provide protective coverage during installation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4683144A1Submarine cable joint protection device
Publication Date: 2026.01.21 ZHONGTIAN TECH MARINE SYST CO LTD
  • EP4683144A1 patent drawingFigure 1
  • EP4683144A1 patent drawingFigure 2~3
  • EP4683144A1 patent drawing

AI summary

The present invention provides a submarine cable joint protection apparatus, which relates to the field of submarine cables. The submarine cable joint protection apparatus provided by the present invention includes an outer shell and a reinforcement assembly; where the outer shell is configured to cover the outside of a submarine cable joint, and the reinforcement assembly is arranged inside the outer shell; the reinforcement assembly includes a plurality of pads, which are arranged adjacent to each other in sequence along the same direction, and at least one of the plurality of pads is connected to the inner wall of the outer shell; at least one mounting groove is formed between two adjacent pads; the shape of the mounting groove matches the shape of the joint; the submarine cable joint is configured to be clamped in the mounting groove. The present invention provides a submarine cable joint protection apparatus, which can avoid the transfer and deformation of the submarine cable joint during the transfer of the submarine cable joint protection apparatus.