Fiber Optic Pulling Grip Assembly Mesh Stability
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Solution Overview
Problem
During the installation of fiber optic cables, the mesh surrounding the optical fibers is prone to sliding and displacement, leading to exposure and damage of the plastic sleeves due to abrasion against the installation pipe, resulting in unprotected optical fibers.
Innovation Solution
A fiber optic pulling grip assembly comprising a sleeve unit and a guiding unit that securely clamps the mesh around the optical fiber section, using threaded connections to fix the mesh in place and prevent displacement during cable insertion and pulling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the mesh is disposed around the plastic sleeves without being fixed, then the structure is simple and easy to install, but the mesh slides and displaces during pulling, exposing the plastic sleeves to abrasion damage
Solution Approach 1:
The mesh ends are preliminarily positioned and clamped by the fixing rings before the pulling operation begins. The threaded portions are pre-assembled with the fixing rings, ensuring the mesh is secured in advance before any abrasion or displacement can occur during cable installation.
Solution Approach 2:
The fixing rings act as intermediary components between the mesh and the threaded portions. These fixing rings provide a secure connection point that prevents the mesh from sliding directly, mediating the force transmission and maintaining mesh position stability during the pulling operation.
2Reliability
If the mesh is fixed securely to prevent displacement, then the protection of optical fibers is improved, but the device complexity increases with additional components
Solution Approach 1:
The fixing mechanism is segmented into modular components: fixing rings with threaded portions that can be independently assembled. Each fixing ring handles one end of the mesh, allowing for simplified assembly and maintenance while providing reliable protection. The segmentation enables easy installation without requiring complex integrated structures.
Solution Approach 2:
The fixing rings are nested within the cable structure, with the mesh ends positioned inside the fixing rings. The threaded portions extend outward from the fixing rings, creating a nested arrangement where the protection mechanism is integrated within the existing cable architecture rather than adding external complexity.
3Reliability
If threaded connections are used to fix the mesh, then the mesh position is stabilized during pulling, but the assembly time and complexity increase
Solution Approach 1:
The threaded portions are pre-assembled with the fixing rings during manufacturing, creating pre-configured assembly units. This preliminary action allows the field installation to be simplified to just attaching the pre-assembled fixing rings to the cable, significantly reducing on-site assembly time while maintaining the reliability of threaded connections.
Data Source
AI summary
A fiber optic pulling grip assembly includes a sleeve unit sleeving around a cable section of a fiber optic cable and a guiding unit. The sleeve unit includes a sleeve member, an insertion tube received in a receiving space extending along the sleeve member, and a blocking member connected to the sleeve member. The guiding unit includes a fixing ring disposed between an optical fiber section and a mesh of the fiber optic cable, a rear portion connected to the sleeve member to clamp a rear end of the mesh, a front portion defining a channel for passing of the optical fiber section and the mesh, a connecting member connected to the optical fiber section and a pulling member connected to the front portion to clamp a front end of the mesh.