Double-Helix Telescopic Hose for Power and High Flow

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Solution Overview

Problem

Existing telescopic hoses with integrated steel or copper-plated steel wires for electric conduction result in a thicker hose body, reduced gas-liquid flow rate, increased production costs, and user inconvenience due to their rigidity and weight.

Innovation Solution

A telescopic hose with an elastic support member in a double helix structure, comprising a first wire with an inner core, conductive layer, and insulating layer, allowing for flexible stretching and bending without additional support members, maintaining electrical conductivity and a larger inner diameter for improved flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If ordinary steel wires or copper-plated steel wires are intertwined to achieve electric conduction, then the telescopic hose can conduct strong electricity, but the hose body becomes thicker and the inner hole becomes smaller

Engineering Contradiction:
Improveelectrical conductivityVSAvoidinner hole diameter
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The elastic support member serves dual functions: providing structural support for the telescopic hose and conducting electricity. By integrating both support and conduction functions into a single component, the patent eliminates the need for separate wire bundles, thereby reducing hose wall thickness and increasing the inner hole diameter while maintaining both mechanical strength and electrical conductivity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the support function and electrical conduction function into a single elastic support member. This integration combines previously separate components (support structure and wiring) into one unified element, reducing overall complexity and improving space utilization within the hose structure.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If multiple wires are coated on the hose body to achieve electric conduction, then the hose can conduct electricity, but the production cost increases

Engineering Contradiction:
Improveelectrical conductivityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The elastic support member is designed to perform both mechanical support and electrical conduction functions simultaneously. This multi-functionality eliminates the need for additional wiring components and their associated installation processes, thereby reducing material costs, labor costs, and overall production expenses while ensuring reliable electrical conductivity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent extracts the electrical conduction function from separate wire components and integrates it directly into the elastic support member. This extraction and integration approach eliminates redundant components and simplifies the manufacturing process, leading to cost reductions in materials, assembly, and production.

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If a longer inner spiral folded layer is required to achieve a certain stretch ratio, then the hose can be stretched, but the hose wall becomes thicker

Engineering Contradiction:
Improvestretch ratioVSAvoidhose wall thickness
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The elastic support member is designed with dynamic characteristics that allow it to extend and contract smoothly. The member's elastic properties enable the hose to achieve the required stretch ratio without requiring excessive wall thickness, as the dynamic structure distributes stress efficiently during extension and retraction cycles.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent utilizes parameter changes in the elastic support member's material properties and geometric configuration to achieve the desired stretch ratio. By optimizing the elastic modulus, wire diameter, and helical pitch of the support member, the hose can achieve high extensibility while maintaining a thin wall profile, avoiding the need for thicker walls that would reduce the inner hole diameter.

Inventive Principle:
Principle #35Parameter changes

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 solution enables a hose that is lightweight, cost-effective, and facilitates greater gas-liquid flow while maintaining strong electrical conductivity, allowing for flexible use and reduced production costs.

Implementation Method 1

an elastic support member that is configured to conduct strong electricity; the support member comprises a first wire and a second wire, and the first wire and the second wire are arranged in a double helix structure in cooperation with each other

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the first wire comprises an inner core, a conductive layer arranged on the inner core

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS11841095B2Telescopic hose and processing technology thereof
Publication Date: 2023.12.12 JINHUA CHUNGUANG TECHNOLOGY CO LTD
  • US11841095B2 patent drawing
  • US11841095B2 patent drawing
  • US11841095B2 patent drawing

AI summary

The present invention discloses a telescopic hose and the process technology thereof. The telescopic hose comprises an elastic support member that can be configured to conduct strong electricity; the support member comprises a first wire and a second wire, and the first wire and the second wire are arranged in a double helix structure in cooperation with each other; a hose wall that is wrapped around the outer side of the support member, and at least part of the hose wall between the first wire and the second wire forms a corrugated portion. Through the setting of the above structures, the hose can not only conduct strong electricity, but also stretch back and forth and turn at any angle. In addition, the hose structure is relatively simple, the amount of gas and liquid passing per unit time is larger.