Leak-Proof Tube Fitting Assembly With Integrated Double Sealing

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Solution Overview

Problem

Existing liquid-cooling radiator tube fitting assemblies suffer from poor sealing performance, leakage, and instability due to complex components and difficult assembly processes.

Innovation Solution

A leak-proof tube fitting assembly structure featuring a liquid tube, a liquid tube fitting with a threaded connection, and a nut with integrated sealing members that form a double seal to prevent leakage, ensuring stability and ease of assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a sleeve connection is used to connect the liquid tube and liquid tube fitting, then the assembly is simple, but the sealing performance is poor and leakage occurs

Engineering Contradiction:
Improveassembly simplicityVSAvoidsealing performance
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent combines the sealing function and locking function into a single integrated nut structure. The nut simultaneously compresses the sealing ring against the liquid tube fitting while providing threaded locking, merging multiple functions into one component to achieve both simple assembly and reliable sealing.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces a sealing ring as an intermediary element between the liquid tube and liquid tube fitting. The sealing ring deforms under compression to fill gaps and create a reliable seal, mediating the connection between the two components to prevent leakage while maintaining assembly simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If a nut locking structure is added to improve anti-falling performance, then the connection stability improves, but the device complexity increases and assembly becomes troublesome

Engineering Contradiction:
Improveconnection stabilityVSAvoidcomponent complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent merges the locking mechanism and sealing mechanism into a single integrated nut assembly. The nut provides both the locking function to prevent detachment and the sealing function to prevent leakage, reducing component complexity while maintaining connection stability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The nut is designed as a multi-functional component that simultaneously performs locking, sealing, and securing functions. This universal component eliminates the need for separate locking mechanisms and sealing elements, simplifying the overall device while ensuring stable connection.

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

3Reliability

If the liquid tube is deformed for sealing connection, then the sealing is achieved, but the connection reliability is poor and components are prone to falling off

Engineering Contradiction:
Improvesealing performanceVSAvoidconnection stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The sealing ring acts as an intermediary that absorbs the deformation stress. Instead of deforming the liquid tube itself, the sealing ring deforms to create the seal, protecting the liquid tube from damage while maintaining both sealing performance and connection stability through the threaded nut locking.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

The structure provides a reliable, leak-proof connection with improved sealing performance, simplifies assembly, and facilitates automation and mass production, while also allowing for easy disassembly and dust prevention.

Implementation Method 1

The first sealing member and the second sealing member are respectively deformed and sealed between an inner wall surface of the nut and an outer wall surface of the liquid tube by a locking and pressing action of the nut

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS11598455B2Leak-proof tube fitting assembly structure
Publication Date: 2023.03.07 DONG GUAN HAN XU HARDWARE & PLASTIC TECH CO LTD
  • US11598455B2 patent drawing
  • US11598455B2 patent drawing
  • US11598455B2 patent drawing

AI summary

A leak-proof tube fitting assembly structure includes a liquid tube, a liquid tube fitting, and a nut for locking and connecting the liquid tube and the liquid tube fitting. The liquid tube fitting has a first connecting end, a first threaded connecting portion and a second connecting end that are axially arranged in sequence in a forward direction. The first threaded connecting portion has a first external thread. Thereby, the sealing performance of the connection of the liquid tube and the liquid tube fitting is improved to prevent leakage.