Corrugated Telescopic Water Pipe for Variable Pressure Durability
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Solution Overview
Problem
Existing telescopic water pipes face issues with durability and functionality under varying water pressures, including damage from friction, debris, and inability to extend to set lengths, leading to reduced service life.
Innovation Solution
A new type of water pipe featuring a compressible and foldable axial elastic corrugated inner pipe with a drainage channel, an elastic braided layer, and an elastic outer layer, allowing for limited elongation under water pressure and quick retraction, with geometric deformation capabilities and a three-layer structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the outer layer is covered with elastic rubber to prevent debris damage, then protection against sand and branches is improved, but the pipe cannot withstand high water pressure
Solution Approach 1:
The patent uses a composite structure consisting of an inner elastic rubber layer (0.5-5mm thick) for debris protection, a middle braided reinforcement layer for pressure resistance, and an outer protective layer. This multi-layer composite design allows the pipe to simultaneously achieve protection against sand and branches while withstanding high water pressure, resolving the contradiction between soft protective coating and pressure resistance.
2Length of moving object
If the outer rubber layer is made thin to allow elongation under low pressure, then extendability is improved, but the layer is easily damaged during use
Solution Approach 1:
The patent combines a thin inner elastic rubber layer (0.5-5mm) that allows elongation under low pressure with a middle braided reinforcement layer that provides durability and damage resistance. The inner layer maintains extendability while the reinforcement layer prevents easy damage, resolving the contradiction between thin-layer extendability and durability.
3Strength
If the outer rubber coating is made thick to prevent damage, then protection is improved, but the pipe cannot achieve elongation under low water pressure
Solution Approach 1:
The patent uses a composite structure where the inner elastic rubber layer (0.5-5mm thick) provides protection while the middle braided reinforcement layer is designed with specific elasticity to enable elongation under low pressure. The reinforcement layer uses elastic fibers arranged in a braided pattern that allows controlled expansion, resolving the contradiction between thick protective coating and extension capability.
4Ease of manufacture
If the pipe structure is simplified to reduce complexity, then manufacturing is improved, but the pipe cannot meet both high and low pressure requirements
Solution Approach 1:
The patent employs a three-layer composite structure (inner elastic rubber layer, middle braided reinforcement layer, outer protective layer) that can be manufactured using standard extrusion and braiding processes. Each layer has a specific function but the overall structure is integrated through conventional manufacturing techniques, resolving the contradiction between structural complexity and pressure condition adaptability.
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 pipe can withstand high and low water pressures, extending to a set length under low pressure and limiting extension under high pressure, enhancing durability and service life.
Implementation Method 1
an elastic outer layer, with high elasticity, which is located outside the elastic braided layer... enable the water pipe to achieve limited elongation along the axial direction under the action of water pressure, limit radial extension, and can quickly retract back to its original size when the pressure is released
Implementation Method 2
the compressible and foldable axial elastic corrugated inner pipe is composed of multiple coaxial continuous annular folding structures, and can be compressed, folded, and geometrically extended and elongated along the axial direction under the action of external forces
Data Source
AI summary
A new type of water pipe, comprising a compressible and foldable axial elastic corrugated inner pipe, with a drainage channel inside; the compressible and foldable axial elastic corrugated inner pipe is composed of multiple coaxial continuous annular folding structures, and can be compressed, folded, and geometrically expanded and elongated along the axial direction under the action of external forces; an braided layer; an elastic outer layer, with high elasticity; the elastic outer layer and the surface area of an outer bending ring of the compressible and foldable axial elastic corrugated inner pipe that is not covered by the elastic braided layer are connected to each other, to form a tightly integrated overall tubular structure. It can be used under both high and low water pressure conditions, can withstand high water pressure and can be extended to a set length under low water pressure conditions to meet customer needs.