Showerhead Self-Cleaning via Movable Plug and Spring

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Solution Overview

Problem

Conventional showerheads face difficulties in removing impurities from the water outlet due to their complex water paths, making it challenging to maintain cleanliness.

Innovation Solution

A showerhead design featuring a movable stationary plate and a spring mechanism that allows a water outlet plug with a truncated cone shape and longitudinal grooves to be inserted into the outlets, forming a drizzle-type spray and automatically retracting to clear impurities when water is turned off, utilizing a pusher to control water flow and a connector system for easy assembly and disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a showerhead has multiple water outlet holes to create special water outlet effects, then user experience is improved, but impurities are likely to remain in the showerhead and are difficult to clear

Engineering Contradiction:
Improveuser experienceVSAvoidcleaning maintenance
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent employs a movable plug that can shift between blocking and unblocking positions within the water outlet holes. This dynamic element allows the showerhead to switch between normal spraying operation and self-cleaning mode, resolving the contradiction by enabling both user experience enhancement and ease of maintenance through a single device structure

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The showerhead design enables automatic self-cleaning functionality where water flow automatically removes impurities from the water outlet holes without requiring manual disassembly or cleaning by the user. The system serves itself by using its own water flow to clear accumulated impurities, thus improving ease of maintenance while maintaining the multi-hole water outlet structure for user experience

Inventive Principle:
Principle #25Self-service

2Ease of operation

If a showerhead has a complicated water path to create special spray effects, then water outlet effect is improved, but impurities are likely to remain and are difficult to clear

Engineering Contradiction:
Improvewater outlet effectVSAvoidwater path structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts the cleaning function from the complex water path structure by introducing a separate movable plug mechanism that can be independently actuated. This extracted element specifically addresses impurity removal without altering the main water path structure that creates the special spray effects, thus resolving the contradiction between water outlet effect and ease of cleaning

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

By introducing a dynamically movable plug that can change position within the water path, the system enables the complex water path structure to serve dual purposes: creating special spray effects during normal operation and facilitating impurity removal during cleaning mode, thereby reducing the effective complexity for maintenance without sacrificing water outlet performance

Inventive Principle:
Principle #15Dynamics

3Device complexity

If a showerhead remains stationary, then structure is simple, but it cannot automatically remove impurities from the water outlet

Engineering Contradiction:
ImprovestructureVSAvoidautomatic cleaning function
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent introduces a movable plug that can shift between stationary blocking and moving unblocking positions. This dynamic component enables automatic impurity removal functionality while maintaining relatively simple overall structure, as the movement is achieved through existing water pressure differential rather than complex actuation mechanisms

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The movable plug is designed to be actuated automatically by the water flow itself without requiring external power sources or complex control systems. The water pressure differential created during operation naturally drives the plug movement for self-cleaning, thus achieving automatic cleaning function with minimal addition to structural complexity

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

Effectively removes impurities and enhances user experience by creating a stable and efficient water spray while ensuring easy cleaning and maintenance of the showerhead.

Implementation Method 1

a spring disposed between the stationary plate and the lower body for applying a force to the stationary plate away from the lower body

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

when the water is supplied, the connector abuts downwardly against the lower body under the action of water pressure

Methodology Applied
Scientific EffectPressure: Pressure Increase

Data Source

PatentEP3590604B1showerhead
Publication Date: 2023.01.18 XIAMEN SOLEX HIGH TECH INDUSTRIES CO LTD
  • EP3590604B1 patent drawingFigure 1
  • EP3590604B1 patent drawingFigure 2
  • EP3590604B1 patent drawingFigure 3

AI summary

This disclosure relates to a showerhead including a body, a stationary plate (50), a spring (30), and an insert fitting member. The body has an upper body (70) and a lower body (10). The upper body (70) and the lower body (10) form an accommodation space. A water inlet for supplying water into the accommodation space is provided at the upper body (70), and a plurality of water outlets (11) for spraying water from the showerhead are provided on the lower body (10). The stationary plate (50) is located in the accommodation space and movable up and down in the accommodation space along a direction of the water flow. The spring (30) is disposed between the stationary plate (50) and the lower body (10), for applying a force to the stationary plate (50) away from the lower body (10). The insert fitting member is fitted to the stationary plate (50). The position of the insert fitting member corresponds to the plurality of water outlets (11) on the lower body (10). When the water is supplied, the stationary plate (50) moves to a lower position under the action of water pressure, and the insert fitting member partially closes the water outlet (11) to form a drizzle-type splash; and when the water is turned off, the spring (30) pushes the stationary plate (50) back to the upper position, and the water outlet plug (40) leaves the water outlet (11).