Functional Module Wrench Assembly for Low-Force Removal

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Solution Overview

Problem

Existing communication devices require significant force for engaging and disengaging functional modules with the chassis, leading to a high workload for operators during insertion and removal.

Innovation Solution

A wrench assembly comprising a wrench base, a wrench, and a torsion spring is fixedly disposed on a functional module, allowing for assisted insertion and removal through cooperation with a locking hole in the chassis, with the grip portion remaining parallel to the module's front panel during operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a connector is directly inserted into or removed from the chassis, then the engagement or disengagement can be achieved, but a considerable force is required resulting in high workload for operators

Engineering Contradiction:
Improveease of insertion and removalVSAvoidforce required for engagement
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The patent introduces a wrench assembly as an intermediary tool between the operator and the connector. The wrench assembly includes a wrench body that engages with a locking hole in the chassis and a rotating shaft connected to the connector, allowing the operator to apply force through the wrench body rather than directly on the connector, thereby reducing the force required for engagement and disengagement.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs a torsion spring mechanism that provides dynamic assistance during the insertion and removal process. The torsion spring stores energy when the wrench is rotated and releases it to help overcome the locking force, making the operation more easeful and reducing the peak force required from the operator.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If a wrench assembly with torsion spring is introduced to assist insertion and removal, then the operational effort is reduced, but the device complexity increases

Engineering Contradiction:
Improveoperational effortVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines multiple functional components into a single integrated wrench assembly. The torsion spring, rotating shaft, wrench body, and locking mechanism are merged into one unified structure that attaches to the functional module. This integration reduces the number of separate components needed and simplifies the overall system while maintaining the force-assisting functionality.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates labor-saving insertion and removal of functional modules by leveraging the torsion spring mechanism, reducing the operational effort required.

Implementation Method 1

a torsion spring (3), sleeved on the rotating shaft (12)... a first torsion arm (31a) extending from the main body portion (32) and acting on the wrench (2); and a second torsion arm (31b) extending from the main body portion (32) and acting on the wrench base body (11)

Methodology Applied
Scientific EffectTorsion spring: Torsion Spring

Data Source

PatentUS20260014677A1Wrench assembly, functional module, and communication device
Publication Date: 2026.01.15 RUIJIE NETWORKS CO LTD
  • US20260014677A1 patent drawing
  • US20260014677A1 patent drawing

AI summary

Exemplary embodiments disclose a wrench assembly, a functional module and a communication device. The wrench assembly is fixedly disposed on a functional module and includes: a wrench base, including: a wrench base body; and a rotating shaft fixedly disposed on the wrench base body; a wrench, including: a grip portion; and a hook portion fixedly disposed at one end of the grip portion, where the hook portion is rotatably connected to the wrench base body via the rotating shaft; and a torsion spring sleeved on the rotating shaft and including: a main body portion; a first torsion arm extending from the main body portion and acting on the wrench; and a second torsion arm extending from the main body portion and acting on the wrench base body; where when the torsion spring is in a natural state, the grip portion is parallel to a front panel of the functional module.