Optical Fiber Splice Closure Positioning Fixture for End Face Stability
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Solution Overview
Problem
The existing structural design of optical fiber splice closures, which relies on a single fixed point, fails to provide effective support and fixation for the suspended end face structure, leading to poor contact and failure during extreme weather conditions.
Innovation Solution
A positioning fixture is designed to fix the end face structure of the optical fiber splice closure, featuring a fixed clamp with a movable clamp connected by a hinge shaft, a locking component, and feature lug bosses that form a circular annular slot for stable clamping of the circumferential flange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fixed point is used to support the optical fiber splice closure, then the device complexity is reduced, but the stability and reliability of the end face structure deteriorates under extreme weather conditions
Solution Approach 1:
The support structure is segmented into multiple independent support points (first support point on closure cap structure, second support point on end face structure) rather than using a single fixed point. This segmentation allows each support point to independently bear loads and maintain stability, resolving the contradiction between simplicity and reliability.
Solution Approach 2:
The support system transitions from a single-point (0D) support to a multi-point distributed support system spanning different spatial dimensions. The first support point is positioned on the closure cap structure while the second support point is positioned on the end face structure, creating a distributed support architecture that enhances stability without proportionally increasing complexity.
2Ease of manufacture
If a single fixed point is used to support the optical fiber splice closure, then the manufacturing and installation process is simplified, but the service life and stability under severe weather conditions deteriorates
Solution Approach 1:
The support system is divided into multiple independent support components that can be manufactured and installed separately. The first support point on the closure cap structure and the second support point on the end face structure are implemented as distinct elements, allowing for modular manufacturing and simplified installation while enhancing long-term durability.
Solution Approach 2:
The support points are pre-configured on the closure cap structure and end face structure during manufacturing, allowing for preliminary positioning and alignment. This preliminary action ensures proper installation geometry is achieved, reducing installation complexity while ensuring the support structure is optimized for long-term service under extreme weather conditions.
3Device complexity
If the end face structure is left in a suspended state, then the device complexity is minimized, but the contact quality of internal optical fibers deteriorates during extreme weather
Solution Approach 1:
The fixing mechanism is segmented into two independent support points: the first support point on the closure cap structure and the second support point on the end face structure. This segmentation provides distributed support that maintains precise positioning of the end face structure, ensuring optimal optical fiber contact quality without requiring a complex monolithic fixing mechanism.
Solution Approach 2:
The second support point acts as an intermediary element between the end face structure and the supporting framework. This intermediary support point provides the necessary mechanical support to maintain the end face structure in a stable, non-suspended state, ensuring precise optical fiber alignment and contact quality while keeping the overall fixing mechanism relatively simple.
Data Source
AI summary
The invention discloses a positioning fixture for fixing an end face structure of an optical fiber splice closure, comprising a fixed clamp, where a movable clamp is connected to the fixed clamp, a locking component is disposed between the fixed clamp and the movable clamp, the fixed clamp is provided with a first groove, the movable clamp is provided with a second groove, and the first groove and the second groove cooperate to form a circular annular slot, where a slot width of the circular annular slot is greater than a thickness of the circumferential flange, the first groove and the second groove are both provided with feature lug bosses that are distributed at intervals along their respective circumferential directions and used for clamping with the circumferential flange.