Folding Water Pipe Structure for Anti-Tangle High-Pressure Use
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Solution Overview
Problem
Existing water pipes, both expandable and non-expandable, suffer from tangling and knotting issues during use and storage, and lack the ability to withstand high water pressure without damage.
Innovation Solution
A water pipe design featuring an inner tube and an outer tube with different modulus of elasticities, where the outer tube winds regularly upon contraction, reducing tangling through unilateral elastic contraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If traditional expandable water pipes are used, then the water pipe can reach different ranges for spraying work, but the water pipe is prone to tangling and knotting when in use and when not in use
Solution Approach 1:
The outer tube is segmented into two wrapping portions with different elastic properties. The first wrapping portion has elastic fibers that allow contraction, while the second wrapping portion lacks elastic fibers and maintains structural stability. This segmentation enables the water pipe to extend for spraying while preventing tangling through controlled contraction behavior.
Solution Approach 2:
Different regions of the outer tube are given different local qualities: the first wrapping portion contains elastic fibers for flexibility and contraction, while the second wrapping portion is made of inelastic material for structural stability. This local differentiation resolves the contradiction between needing extendability and preventing tangling.
2Ease of operation
If coiled PU water pipes are used, then the problems of tangling and knotting are reduced, but they cannot withstand high water pressure and are prone to damage
Solution Approach 1:
The outer tube is constructed as a composite structure with two different wrapping portions: one with elastic fibers for flexibility and one without elastic fibers for strength. This composite design allows the water pipe to be both convenient to use (resistant to tangling) and strong enough to withstand high water pressure.
Solution Approach 2:
The second wrapping portion is specifically designed without elastic fibers to provide localized structural stability and high water pressure resistance, while the first wrapping portion provides the necessary flexibility. This local quality differentiation resolves the contradiction between convenience and strength.
3Stability of the object's composition
If the outer tube is made of inelastic material to restrict axial variations, then the appearance remains unchanged under water pressure, but the water pipe is prone to tangling and knotting
Solution Approach 1:
The outer tube is divided into two wrapping portions with different elastic properties. The first wrapping portion with elastic fibers allows controlled contraction to prevent tangling, while the second wrapping portion without elastic fibers maintains appearance stability under water pressure. This segmentation resolves the contradiction between stability and convenience.
Solution Approach 2:
The elastic modulus parameter is changed across different portions of the outer tube. The first wrapping portion has higher elasticity for flexibility, while the second wrapping portion has lower elasticity for stability. This parameter differentiation allows the water pipe to maintain appearance under pressure while preventing tangling during use.
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 design effectively prevents tangling and knotting, allowing for easy storage and maintaining structural integrity under high water pressure.
Implementation Method 1
the first wrapping portion is made of an elastic material including elastic fibers, and the second wrapping portion is made of a non-elastic material
Implementation Method 2
The inner tubes can elastically stretch and contract in the axial direction
Data Source
AI summary
An easy folding water pipe device includes an inner tube, an outer tube and a connector structure. The outer tube wraps around an outer circumference of the inner tube and consists of a first wrapping portion and a second wrapping portion with different modulus of elasticities. The connector structure has a first connector and a second connector, and the first and the second connectors respectively connect to two ends of the inner and the outer tubes. When the water pipe device is stretched by an external force, the first wrapping portion, the second wrapping portion and the inner tube are stretched simultaneously, and when the external force is released, the first wrapping portion is in a contracted state, causing the outer and the inner tubes to wind regularly. Therefore, the present invention has advantages such as easy folding and preventing tangling.