Dual Sealing Ring Connector Structure for Stable High-Pressure Sealing
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Solution Overview
Problem
Conventional single-ring seals fail to meet complex working conditions, leading to seal failure, while dual-ring designs face issues with installation, removal, and reduced sealing due to material properties and structural integrity, especially under uneven pressure and thermal expansion.
Innovation Solution
A dual sealing ring connector with a holding portion and inserting portion, featuring a joint head, joint rod, and locking tabs, designed to enhance resilience and structural integrity through a spacer sleeve configuration and locking cams, ensuring reliable operation under varying conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional single-ring seals are used, then the structure is simple, but the sealing performance is insufficient under complex working conditions
Solution Approach 1:
The seal is divided into two separate resilient sealing rings (first and second sealing rings) with distinct functions. The first sealing ring provides primary sealing while the second sealing ring provides secondary sealing and structural support. This segmentation allows each ring to be optimized for its specific function, improving overall sealing performance under complex working conditions while maintaining reasonable structural complexity.
2Reliability
If dual-ring combination seal designs are used, then the sealing reliability is improved, but the seal rings are prone to separation under uneven pressure and extrusion
Solution Approach 1:
The second resilient sealing ring is partially embedded within the first resilient sealing ring, creating a nested configuration. This nesting provides mechanical interlocking that prevents separation under uneven pressure and extrusion forces. The embedded portion of the second ring acts as a anchor, ensuring stable connection between the two sealing rings while allowing each to maintain its sealing function.
3Ease of operation
If split oil seal technology with notches is used, then installation and removal become easier, but the sealing performance and reliability are reduced
Solution Approach 1:
The seal assembly is segmented into two separate resilient sealing rings that can be independently installed and removed. This segmentation provides ease of installation and removal similar to split seals, while the complete circular configuration of each ring (without notches) maintains full sealing performance. The two rings work together to provide both operational ease and reliable sealing.
4Device complexity
If the inner ring notch is flat and straight, then the structure is simple, but thermal expansion and contraction create gaps that decrease sealing
Solution Approach 1:
The connection interface between the two sealing rings uses curved or rounded geometries instead of flat and straight notches. The curved connection surfaces allow for thermal expansion and contraction without creating gaps, as the curvature accommodates dimensional changes while maintaining continuous contact. This curved geometry ensures the sealing capacity remains high under varying temperature conditions.
5Strength
If hook-and-loop connection type seals are used, then the connection strength is improved, but the plug joint size is difficult to control and resilient material is affected by heat
Solution Approach 1:
The second sealing ring is nested within the first sealing ring with a controlled embedded depth. This nested configuration provides strong mechanical connection through the embedded portion while the outer dimensions remain precisely controllable. The nesting geometry allows for accurate control of the plug joint size during manufacturing, and the design accommodates thermal effects on the resilient material by allowing controlled movement within the nested structure.
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 dual sealing ring connector improves sealing capacity and connection strength, preventing misalignment and dislocation, and ensures reliable operation by enhancing resilience and structural integrity.
Implementation Method 1
the locking tabs extend in the same direction as the extension direction of the joint rod
Implementation Method 2
the locking tabs are spaced apart from the joint rod by a distance
Implementation Method 3
a first resilient sealing ring; a second resilient sealing ring partially embedded in the first resilient sealing ring
Implementation Method 4
the joint head is arranged at the end of the joint rod and has a shape that is mirror-image symmetrical along an axis of symmetry of the joint rod
Data Source
AI summary
A dual sealing ring connector comprising: a first resilient sealing ring; a second resilient sealing ring partially embedded in the first resilient sealing ring; characterized in that the dual sealing ring connector comprises a holding portion and an inserting portion; the inserting portion is shaped to correspond to the holding portion and embedded into the holding portion; the inserting portion comprises a joint head, a joint rod, and locking tabs; the joint rod extends in a radial direction, an axial direction or a circumferential direction; the joint head is arranged at the end of the joint rod and is mirror image symmetrical with regard to its axis of symmetry; the locking tabs are arranged on both sides of the joint rod and are spaced apart from the joint rod by a distance; the locking tabs extend in the same direction as the extension direction of the joint rod, and its length in the extension direction is less than ⅔ of the sum of the lengths of the joint head and the joint rod in the extension direction of the joint rod.