Expandable Hose Pressure Regulation to Prevent Burst Failure
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Solution Overview
Problem
Traditional expandable hoses burst under high water pressure from spigots due to inadequate pressure regulation, which is unnecessary for lawn and garden accessories, leading to hose failure and safety concerns.
Innovation Solution
A hose with a regulator assembly that reduces fluid pressure from spigots from 140 PSI to 60-80 PSI, featuring a spigot connector, strain relief sleeve, and hose assemblies with tube connectors and collars designed to manage pressure and prevent rupture, including a second tube connector with a smaller cross-sectional area to optimize flow and retraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the hose is designed to handle high water pressure from spigots, then the hose can deliver adequate water flow to accessories, but the hose bursts under high pressure due to inadequate pressure regulation
Solution Approach 1:
The hose assembly is segmented into multiple components including an inner hose, outer hose, first hose connector assembly, and second hose connector assembly. This segmentation allows each component to be optimized for specific functions - the inner hose handles high-pressure water flow from the spigot while the outer hose provides structural support and pressure distribution, preventing burst failures
Solution Approach 2:
The hose connector assemblies act as intermediary components between the spigot and the hose, and between the inner and outer hoses. These connectors distribute and regulate pressure at critical junction points, preventing pressure concentration that could lead to hose bursting while maintaining adequate flow delivery
2Productivity
If the tube connector has a larger cross-sectional area, then more water can flow through the hose, but the hose becomes more prone to bursting under high pressure
Solution Approach 1:
The first tube connector has a larger cross-sectional area optimized for receiving high-volume water flow from the spigot, while the second tube connector has a smaller cross-sectional area designed for delivering regulated flow to accessories. This local differentiation allows each connector to be optimized for its specific function - flow reception versus flow delivery - while maintaining overall system safety
Solution Approach 2:
The cross-sectional area parameter of the tube connectors is varied along the hose assembly to optimize both flow capacity and pressure management. The gradient in cross-sectional area from the spigot end toward the accessory end creates progressive pressure regulation, allowing high flow intake while preventing pressure buildup that could cause rupture
Data Source
AI summary
Provided is a connection assembly for connecting to inner and outer hoses. The connection assembly includes a first connector assembly, a second connector assembly, a first hose connector assembly coupled to the connector assembly and configured to be coupled to the inner and outer hoses, the first hose connector assembly including a first tube connector configured to be coupled to the inner hose and a first collar configured to be coupled to the outer hose, and a second hose connector assembly coupled to the second connector assembly and configured to be coupled to the inner and outer hoses, the second hose connector assembly including a second tube connector configured to be coupled to the inner hose and a second collar configured to be coupled to the outer hose, wherein the second tube connector has a cross-sectional area that is smaller than a cross-sectional area of the first tube connector.