Fiber-Optic Terminal Box Locking Assembly for Stable Compact Connections

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Solution Overview

Problem

Existing fiber-optic terminal boxes face issues with poor tensile and securing effects, leading to connection instability and inaccuracy, especially in outdoor environments, and require larger spaces for connection, affecting mounting stability.

Innovation Solution

A fiber-optic terminal box design featuring a housing with intersecting and coplanar connecting holes and channels, combined with a connecting assembly including a knob, connecting component, and reset component, which secures the fiber-optic connector through axial movement and rotation, ensuring firm connection and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a button with through hole and protrusion is used for connection, then the connection method is simple, but the tensile effect is poor and loosening occurs in outdoor environments

Engineering Contradiction:
Improveconnection method simplicityVSAvoidconnection stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The connecting component transforms the static button press action into a dynamic rotational motion that drives axial movement. The knob rotation dynamically actuates the connecting component to move along the axial direction, pressing the fiber-optic connector firmly into the adapter, thereby improving connection reliability while maintaining ease of operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the connection action from a one-dimensional linear press (button pushing) to a two-dimensional combination of rotation and axial movement. The knob rotates in a circular path while simultaneously driving the connecting component to move axially, creating a more effective securing mechanism that prevents loosening.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If a locking structure is provided on the fiber-optic connector, then the tensile effect is improved, but the space requirement increases and the terminal box size increases

Engineering Contradiction:
Improvetensile effectVSAvoidterminal box size
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The connecting component is nested within the knob structure, with the connecting component housed inside the hollow interior of the knob. This nested arrangement allows the locking mechanism to be compact and integrated within the existing terminal box structure, avoiding additional space requirements and preventing an increase in terminal box size.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The knob serves multiple functions: it acts as both the operating handle for actuation and as a housing structure for the connecting component. This multi-functionality consolidates what would otherwise be separate components into a single integrated unit, maintaining compact dimensions while providing effective tensile resistance.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If a locking structure is provided on the fiber-optic connector, then the tensile effect is improved, but the mounting stability decreases due to higher mounting requirements

Engineering Contradiction:
Improvetensile effectVSAvoidmounting stability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The connecting component automatically performs the securing function when the knob is rotated. The rotational motion self-actuates the axial movement of the connecting component, which then automatically presses and secures the fiber-optic connector without requiring additional mounting operations or adjustments, thereby maintaining mounting stability.

Inventive Principle:
Principle #25Self-service

4Reliability

If the connecting component moves axially within connecting stroke, then the fiber-optic connector is firmly secured, but the connection procedure becomes more complex

Engineering Contradiction:
Improveconnection firmnessVSAvoidconnection procedure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention merges the rotation action and axial movement into a single integrated mechanism. Rotating the knob simultaneously performs both the rotational actuation and drives the axial movement of the connecting component, combining what would otherwise be separate operations into one simple motion, thereby maintaining connection procedure simplicity while achieving firm securing.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12554088B2Fiber-optic terminal box
Publication Date: 2026.02.17 ANYCOM TECH CO LTD
  • US12554088B2 patent drawing
  • US12554088B2 patent drawing
  • US12554088B2 patent drawing

AI summary

The present invention discloses a fiber-optic terminal box, which includes a housing and a connecting assembly, wherein the housing is provided with a plurality of connecting holes and insertion channels, the connecting assembly is detachably connected to the housing by means of the connecting holes, and the insertion channels are configured for a third-party fiber-optic connecting device to be inserted for connection to the fiber-optic terminal box. The connecting assembly includes a knob, a connecting component and a reset component, wherein a connecting portion having a preset length is axially provided on a peripheral side of the knob, a fitting portion fitting with the connecting portion is provided on a peripheral side of the connecting component, the reset component is sleeved on an outer side wall of the knob and moves synchronously with the knob, and the connecting hole is provided with a slot fitting with the reset component.