Gasketless Hose Coupling Assembly for Leak-Free Sealing
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Solution Overview
Problem
Existing hose connection apparatuses suffer from leakage issues due to incorrect positioning of the tightening bushing, aging gaskets leading to sealing failures, and mounting errors, resulting in increased labor, costs, and safety risks.
Innovation Solution
A hose connection apparatus designed without gaskets, featuring a tightening bushing with extensions that securely interlock with the nut and nipple components, ensuring proper alignment and sealing without the need for gaskets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gasket is used as sealing material in hose connection apparatus, then initial sealing is achieved, but the gasket ages and loses its sealing properties over time causing leakage
Solution Approach 1:
The patent removes the gasket component entirely from the sealing system. Instead of using a separate gasket that degrades over time, the invention creates a gasketless sealing mechanism where the tightening bushing with extensions directly forms the sealing interface between the hose and fitting, eliminating the aging problem inherent in traditional gasket-based systems
Solution Approach 2:
The invention changes the sealing mechanism from relying on material properties of a gasket (which degrade over time) to relying on geometric parameters and mechanical interference of the tightening bushing extensions. The sealing is achieved through precise dimensional control and mechanical engagement rather than elastomeric material properties
2Ease of manufacture
If the tightening bushing is not fixed in the nut, then the apparatus is simple to manufacture, but incorrect positioning of the bushing causes mounting errors and leakage
Solution Approach 1:
The tightening bushing is pre-fixed in a predetermined position within the nut during manufacturing. This preliminary positioning action ensures that when the apparatus is assembled in the field, the bushing is already correctly positioned, eliminating mounting errors and leakage issues while maintaining ease of assembly
Solution Approach 2:
The fixed positioning of the tightening bushing within the nut creates a self-aligning system where the bushing automatically assumes its correct position during assembly, eliminating the need for precise manual positioning by the installer while ensuring consistent, leak-free connections
3Reliability
If the entire connection apparatus must be replaced due to tightening bushing issues, then sealing reliability is restored, but labor and cost increase significantly
Solution Approach 1:
The invention separates the tightening bushing as a replaceable component from the main connection apparatus. This segmentation allows the bushing to be independently replaced if needed, restoring sealing reliability without requiring replacement of the entire expensive apparatus, thereby reducing labor time and costs
Solution Approach 2:
The design allows the tightening bushing to be discarded and replaced as a separate, lower-cost component rather than replacing the entire connection apparatus. This selective replacement strategy recovers the value of the main apparatus while eliminating the failed component, reducing overall replacement costs and labor time
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a hose connection apparatus (A) providing interconnection of or connection to related installation of flexible hoses used in all areas such as industry, work place and houses etc.