Gas Supply Socket Sealing Structure for Inclined Inner Cylinders
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional gas supply sockets for medical gases face challenges in maintaining a perfect seal when the inner cylinder is inclined relative to the outer cylinder, leading to potential gas leakage during replacement or repair.
Innovation Solution
The introduction of an intermediate cylinder with inner and outer seals between the outer and inner cylinders, along with a movable body biased by a spring, ensures a hermetic sealing structure even when the inner cylinder is inclined, using a resin frame with reference pins for precise alignment and a tapered groove for mounting the reference pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the inner cylinder is made detachable for replacement or repair, then the ease of repair is improved, but the sealing reliability deteriorates when the inner cylinder is inclined relative to the outer cylinder
Solution Approach 1:
The sealing system is segmented into multiple independent sealing elements (first seal portion and second seal portion) positioned at different locations. This segmentation allows each seal to independently compensate for misalignment, ensuring that even if the inner cylinder is inclined, at least one sealing interface maintains effective contact and prevents gas leakage.
Solution Approach 2:
The patent employs composite sealing structures combining multiple seal portions made of elastomeric materials with different durometers or cross-sectional geometries. This composite approach allows the sealing system to accommodate dimensional variations and angular misalignment while maintaining reliable sealing under varying operational conditions.
2Ease of operation
If the inner cylinder is made detachable for replacement, then the ease of operation is improved, but the manufacturing precision required increases to ensure proper alignment
Solution Approach 1:
The sealing structure is designed with preliminary compensatory features built into its geometry and material properties. The multiple seal portions are pre-positioned and pre-formed to accommodate expected misalignment ranges, eliminating the need for high-precision alignment during assembly operations.
Solution Approach 2:
The patent utilizes elastomeric materials with specific durometer ranges and cross-sectional dimensions that provide optimal compliance and sealing force. By carefully selecting and controlling these material parameters, the system achieves reliable sealing across a range of alignment conditions without requiring tight manufacturing tolerances.
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
This configuration effectively absorbs the inclination of the inner cylinder, enhancing the sealing between the outer and inner cylinders and preventing gas leakage, while ensuring only appropriate components can be mounted, thus maintaining a secure gas supply.
Implementation Method 1
a movable body disposed slidably within the outer cylinder and biased by a first elastic body
Implementation Method 2
a second elastic body, provided within the inner cylinder, for biasing the valve body toward the valve seat portion
Data Source
AI summary
There is provided a gas supply socket which can ensure sealing between an outer cylinder and an inner cylinder even when the inner cylinder, inclined with respect to the outer cylinder, is placed in the outer cylinder. The gas supply socket 10 includes an outer cylinder 11, an inner cylinder 12, a movable body 20 disposed within the outer cylinder 11, and a valve body 18 and a valve seat portion 19 provided within the inner cylinder 12. An intermediate cylinder 13 is provided between the outer cylinder 11 and the inner cylinder 12. When the inner cylinder 12, inclined with respect to the outer cylinder 11, is placed in the outer cylinder 11, the inner cylinder 12 and the intermediate cylinder 13 tilt with respect to the outer cylinder 11.