Magnetic Docking for Pull-Out Faucet Sprayheads

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Solution Overview

Problem

Current pull-out faucet docking systems fail to provide adequate force to return the sprayhead to a fully docked position, resulting in an aesthetically unappealing combination for homeowners and guests.

Innovation Solution

A magnetic docking system is implemented, utilizing a hollow, frusto-conical magnet secured within the spray hose connector and a metallic element with complementary angles inside the spout, which creates a powerful magnetic attraction to securely and efficiently return the sprayhead to its docked position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional docking systems (counterweights, magnets, compression springs) are used to return the sprayhead to the docked position, then the sprayhead can be returned to position, but the docking force becomes inadequate after a certain period of time

Engineering Contradiction:
Improvedocking force consistencyVSAvoidservice life
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent replaces traditional mechanical docking systems (counterweights, compression springs) with a magnetic field-based docking system. The magnetic field provides consistent docking force without the degradation issues of mechanical components, substituting mechanical force with electromagnetic force to maintain reliability over time.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes magnetic field strength as the docking parameter, which can be maintained at optimal levels throughout the service life. By changing from mechanical parameters (spring pressure, counterweight position) to magnetic parameters (field strength), the system maintains consistent docking force without degradation.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the sprayhead is allowed to remain in an undocked position for aesthetic purposes, then user flexibility is maintained, but the aesthetic appeal deteriorates

Engineering Contradiction:
Improveuser flexibilityVSAvoidaesthetic appearance
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The patent creates a dynamic docking system where the sprayhead can be easily moved between docked and undocked positions by the user, but automatically returns to the docked position through magnetic force. This dynamic behavior provides both user flexibility during use and aesthetic appearance when not in use.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The magnetic docking system provides self-service by automatically returning the sprayhead to the docked position without user intervention. The user simply needs to release the sprayhead, and the magnetic field automatically guides it back to the aesthetically pleasing docked position.

Inventive Principle:
Principle #25Self-service

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 magnetic docking system ensures a swift and secure return of the sprayhead to its docked position, enhancing the aesthetic appeal and functionality of the faucet by providing a strong and reliable connection.

Implementation Method 1

A magnetic docking system is implemented, utilizing a hollow, frusto-conical magnet secured within the spray hose connector and a metallic element with complementary angles inside the spout, which creates a powerful magnetic attraction to securely and efficiently return the sprayhead to its docked position.

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS10907329B2Pull-out faucet with magnetic docking system
Publication Date: 2021.02.02 XIAMEN LOTA INT CO LTD
  • US10907329B2 patent drawing
  • US10907329B2 patent drawing
  • US10907329B2 patent drawing

AI summary

A pull-down faucet includes a spout and a water hose movable within the spout. A spray hose connector is attached to the discharge end of the water hose. A sprayhead is in fluid communication with the spray hose connector and the water hose, and is movable between a docked position adjacent the discharge end of the spout, to an undocked position away from the spout. A magnet is secured to the interior of the spray hose connector, and a metallic element is secured near the discharge end of the spout.