Quick-Disconnect Gas Hose Coupling to Eliminate Tripping Hazards

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Solution Overview

Problem

Existing gas heating devices, such as stoves and table top heaters, require long gas pipelines that remain connected even when not in use, posing a tripping hazard and risk of damage or injury.

Innovation Solution

A quick-disconnect gas pipeline system featuring a quick disconnect device (QDD) with male and female ends, allowing easy connection and disconnection of the gas hose to the heating system, enabling safe storage and convenient connection to an external gas tank.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a long gas pipeline is used to connect the heating unit with the gas tank, then the heating device can be supplied with gas, but the pipeline remains connected even when not in use, creating tripping hazards and risk of damage

Engineering Contradiction:

Improveease of connection and disconnectionVSAvoidtripping hazard and risk of damage

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The gas pipeline system is segmented into a fixed connection part (QDD male end integrated into the heating device) and a detachable hose part (QDD female end connected to gas hose). This segmentation allows the hose to be disconnected when not in use, eliminating tripping hazards while maintaining gas supply capability when needed.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The connection system transitions from a static permanent connection to a dynamic detachable connection. The quick disconnect device enables the gas hose to be easily connected when needed and disconnected when not in use, adapting the system state based on operational requirements to eliminate safety hazards.

Inventive Principle:

Principle #15Dynamics

2Object-affected harmful factors

If a quick disconnect device is implemented to allow easy disconnection, then safety is improved by preventing tripping hazards, but the device complexity increases

Engineering Contradiction:

Improvetripping hazard and risk of damageVSAvoidcomplexity of quick disconnect device

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The quick disconnect device merges the functions of gas supply connection, sealing, and locking into a single integrated component. The male end and female end combine multiple features (threaded connection, seal engagement, locking mechanism) to achieve safe disconnection without requiring multiple separate components, thus limiting the increase in complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The quick disconnect device acts as an intermediary between the fixed gas pipeline and the detachable hose. This intermediary component provides the necessary sealing and locking functions to ensure safe disconnection while maintaining a relatively simple overall structure through its modular design.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11162679B2Quick-disconnect gas pipeline

Publication Date: 2021.11.02 GHP GRP

AI summary

A quick-disconnect gas pipeline comprises a quick-disconnect device (QDD) which comprises a QDD male end and a QDD female end, and a gas hose. The QDD male end is connected to the gas pipeline inside the heating system and the QDD female end is connected to the gas hose outside the heating system. When the heating system is not used, it is easy to disconnect the QDD to prevent people from tripping over the long gas pipeline.