Hose Connector Seal Ring Structure for Retention and Replacement
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Solution Overview
Problem
Existing seal rings in hose couplings lack effective retention qualities, often falling out when disconnected, and are not easily removable or replaceable by consumers, leading to sealing issues and strain on the seal member.
Innovation Solution
A seal ring design featuring an elastic ring member with a flange structure that includes multiple radially extending flange portions, protrusions, and a harder secondary ring member, providing improved retention and sealing properties by adapting to the coupling's internal threads and resisting deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional seal rings or flat washers are used in hose couplings, then the sealing function is provided, but the retention qualities are poor causing the seal to fall out when disconnected
Solution Approach 1:
The seal ring is divided into distinct functional segments: a retention flange with radial portions for engagement with coupling threads, an annular body for sealing, and a reduced thickness transition zone. This segmentation allows each portion to perform its specific function optimally while working together as an integrated unit.
Solution Approach 2:
Different regions of the seal ring have different thicknesses optimized for their specific functions: the flange has larger thickness for retention engagement, the sealing surface has appropriate thickness for compression sealing, and the transition zone has reduced thickness to facilitate installation and removal. This local variation in properties resolves the contradiction between retention and removability.
2Reliability
If the seal retention is enhanced in the female coupling member, then the seal stays in place, but the seal cannot be removed and replaced by the consumer
Solution Approach 1:
The seal ring design incorporates a dynamic installation/removal mechanism where the reduced thickness portion allows the seal to be flexed and manipulated during installation and removal, while the thicker flange portions provide stable retention during normal use. This dynamic design enables consumer replacement while maintaining reliable retention.
3Ease of operation
If the seal ring is designed for easy removal and replacement, then consumer accessibility is improved, but retention qualities may be compromised
Solution Approach 1:
The retention mechanism utilizes the radial dimension with flange portions extending outward to engage with coupling threads, while the axial dimension provides the sealing surface. This multi-dimensional approach allows retention and sealing functions to operate independently in different dimensions, enabling easy removal without compromising retention.
4Reliability
If a fixed seal installed by manufacturer is used, then initial sealing is ensured, but the seal cannot be replaced by consumer and lacks retention when disconnected
Solution Approach 1:
The seal ring design enables end-users to perform installation and removal operations themselves without requiring manufacturer intervention or specialized tools. The reduced thickness portion and flange structure allow consumers to easily install and replace seals, making the system self-serviceable while maintaining reliable sealing and retention.
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 improved seal ring maintains a watertight seal, enhances retention, and extends the lifespan of the sealing system by resisting rolling and radial deformation, ensuring reliable performance across various coupling conditions.
Implementation Method 1
an elastic ring member made of elastic material comprising: an annular body portion and a flange surrounding the annular body portion
Implementation Method 2
the seal ring comprises a second ring member coaxial with the annular body portion, made of material, which is harder than the elastic material
Data Source
AI summary
A seal ring has a central axis and an elastic ring member made of elastic material and an annular body portion and a flange surrounding the annular body portion. The thickness of the flange is smaller than the thickness of the annular body portion as measured in the axial direction of the seal ring. A hose connector assembly includes the aforementioned seal ring.