Hinged Drain Cover Structure for Flush Integration and Easy Cleaning

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Solution Overview

Problem

Existing shower enclosure drain cover structures either protrude, creating an aesthetically unpleasing appearance or are not easily accessible for cleaning, and may not securely engage with pre-moulded shower trays, posing risks of trapping and maintenance challenges.

Innovation Solution

A drain cover structure with an anchor and hinged cover portion that securely fits into a recess of the shower tray, allowing the cover to move between positions to cover or expose the drain, featuring water passages and a non-removable design for easy cleaning while maintaining flush integration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the drain cover structure protrudes from the shower tray base, then it prevents injury and traps body parts, but it creates an aesthetically unpleasing appearance

Engineering Contradiction:
ImprovesafetyVSAvoidaesthetic appearance
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The drain cover is designed with a hinged connection to the anchor structure, allowing it to move between a closed position (flush with the base for aesthetics) and an open position (for cleaning and maintenance). This dynamic capability resolves the contradiction by providing safety when closed and accessibility when opened.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the drain cover structure is made non-removable and securely anchored, then it provides stable engagement with the shower tray, but it becomes difficult to access for cleaning

Engineering Contradiction:
Improvesecure engagementVSAvoidaccessibility for cleaning
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The drain cover structure is segmented into two main parts: an anchor structure that remains securely engaged with the shower tray, and a cover portion that is hinged to the anchor. This segmentation allows the anchor to provide stable engagement while the hinged cover can be opened for cleaning, resolving the contradiction between secure engagement and accessibility.

Inventive Principle:
Principle #1Segmentation

3Shape

If the drain cover structure is designed to lie flush with the shower tray base, then it provides an aesthetically pleasing appearance, but it may not be easily accessible for cleaning

Engineering Contradiction:
Improveflush integrationVSAvoidmaintainability
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The hinged cover portion enables the drain cover to transition from a flush position (for aesthetics) to an open position (for cleaning). The hinge mechanism allows the cover to be lifted away from the flush position without compromising the overall integrated appearance when closed, while providing easy access for maintenance.

Inventive Principle:
Principle #15Dynamics

4Reliability

If the anchor structure is designed with engagement features (recesses and protuberances), then it securely engages with the shower tray, but it increases the complexity of the structure

Engineering Contradiction:
Improvesecure engagementVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The anchor structure combines multiple functions into a single integrated component: it provides the hinged connection for the cover, defines the cavity for the horizontal extrusion, and incorporates engagement features (recesses and protuberances) for secure mounting. This merging reduces the need for separate components while achieving secure engagement.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3686362A1Drain cover structures
Publication Date: 2020.07.29 CORAM UK HLDG LTD
  • EP3686362A1 patent drawingFigure 1A
  • EP3686362A1 patent drawingFigure 1B
  • EP3686362A1 patent drawingFigure 1C

AI summary

A drain cover structure for use in a pre-moulded shower tray, the drain cover structure comprising an anchor structure, and a cover portion to hingedly connect to the anchor structure.