Cable Closure Locking Ring Lever for Low-Force Sealing
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Solution Overview
Problem
Existing locking rings for cable closures in the telecommunications industry require high forces for closure and sealing, making installation difficult and time-consuming, necessitating skilled operators.
Innovation Solution
A locking ring design featuring two ring sections with locking structures and a lever mechanism that allows easy engagement and disengagement without tools, facilitated by ergonomic levers and interlocking components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a traditional locking ring mechanism is used, then the closure can be sealed, but high forces are required making it difficult for installers to close without assistance
Solution Approach 1:
The locking ring is divided into at least two separable ring sections that can be independently positioned. This segmentation allows the ring to be opened and closed in a controlled manner, distributing the closing force across multiple engagement points rather than requiring concentrated high force at a single point.
Solution Approach 2:
The locking structures and locking ribs are pre-configured in specific positions on the ring sections and lever. When the lever is moved, these pre-positioned locking features automatically engage with each other in a predetermined sequence, preparing the force distribution mechanism before the actual closing action occurs.
2Reliability
If high forces are applied to close the locking ring, then the closure is sealed, but installation time increases and skilled operators are required
Solution Approach 1:
The locking mechanism transitions from a static high-force requirement to a dynamic multi-position system. The lever moves through distinct positions (fully open, partially open, closed, locked) with the locking ribs engaging at different stages, allowing controlled force application that ensures reliable sealing without requiring excessive force or specialized operator skills.
Solution Approach 2:
The locking ribs act as intermediary elements between the lever and the locking structures on the ring sections. These ribs transfer and distribute the closing force through multiple engagement points, ensuring reliable sealing while reducing the peak force required and eliminating the need for operator assistance or specialized techniques.
3Ease of operation
If a simple ring design is used, then assembly is easy, but sufficient forces cannot be applied to adequately seal the closure
Solution Approach 1:
The locking ring combines multiple functional elements into a single integrated assembly: the ring sections provide the sealing structure, the locking structures provide engagement points, and the lever with locking ribs provides the force application mechanism. This merging maintains ease of assembly as a single unit while incorporating the complexity needed to generate sufficient sealing force through coordinated action of all components.
Data Source
AI summary
A locking ring for assembly onto a cable closure includes a locking ring includes at least two ring sections, with each ring section having at least one locking structure; and a lever that couples with the at least two ring sections. The lever includes at least one locking rib disposed therein, and the at least one locking rib is configured to engage and disengage from the at least one locking structure such that the lever moves from a closed position in which proximal ends of each ring section are substantially adjacent to an open position in which proximal ends of each ring section are separate.