Sink Drain Strainer with Flow Disruption to Prevent Upward Spray

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Solution Overview

Problem

Existing sludge retaining devices for sinks, such as basket strainers, often suffer from liquid jets spraying upward towards users due to unfavorable angles, leading to inconvenience and potential irritation.

Innovation Solution

Incorporating a flow disruption device, specifically a recess, on the handle device of the sludge retaining device to redirect the liquid flow, preventing it from spraying upward and ensuring it flows in the original direction, while maintaining an attractive design and easy operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the handle device is arranged in the lower surface region with rounded transitions for improved gripping, then ease of operation is improved, but liquid flows rapidly towards the handle and sprays upward towards the user

Engineering Contradiction:
Improvegripping comfortVSAvoidliquid spraying towards user
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A flow disruption device is introduced as an intermediary element between the liquid flow and the handle device. This device interrupts the direct path of the liquid jet, preventing it from reaching the handle and spraying towards the user, while allowing the handle to maintain its ergonomic rounded design for comfortable gripping.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The handle device is segmented into functional zones: an upper gripping region with rounded transitions for user comfort, and a lower flow disruption region with the recess that intercepts liquid flow. This segmentation allows each zone to optimize its function without compromising the other.

Inventive Principle:
Principle #1Segmentation

2Productivity

If the sieve surface is designed with outlet openings for draining waste water, then drainage function is improved, but liquid jet flows rapidly in the direction of the handle causing spraying

Engineering Contradiction:
Improvedrainage efficiencyVSAvoidliquid spraying towards user
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The flow disruption device acts as a mediator positioned between the outlet openings and the handle device, intercepting the liquid jet before it can accelerate towards the handle and spray towards the user, while maintaining efficient drainage through the outlet openings.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If the handle and transition from sieve surface are rounded for improved gripping, then ease of operation is improved, but liquid flow is directed towards the handle causing upward spray

Engineering Contradiction:
Improvegripping comfortVSAvoidupward liquid spray
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The handle device is divided into functional segments: the upper portion maintains rounded contours for ergonomic gripping, while the lower portion incorporates the flow disruption recess that redirects liquid flow away from the handle, preventing upward spray while preserving gripping comfort.

Inventive Principle:
Principle #1Segmentation

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 suppresses the spraying of liquid jets, providing a safer and more user-friendly experience while maintaining an aesthetically pleasing appearance and facilitating easy cleaning and assembly.

Implementation Method 1

the handle device comprises a flow disruption device, in particular a recess, for the flow of a liquid, which flows towards the lower surface region, such that the flow of the liquid is at least partially broken up by the flow disruption device

Methodology Applied
Scientific EffectFlow disruption: Flow Separation

Data Source

PatentUS20230264999A1Sludge retaining device for a drain of a sanitary basin
Publication Date: 2023.08.24 BLANCO GMBH & CO KG
  • US20230264999A1 patent drawing
  • US20230264999A1 patent drawing
  • US20230264999A1 patent drawing

AI summary

The invention relates to a sludge retaining device for a drain of a sanitary basin, in particular of a sink or the like, comprising a sieve surface, which is formed extending from a higher to a lower surface region, and a handle device, which is arranged in the region of the lower surface region on the sieve surface, wherein the handle device comprises a flow disruption device, in particular break-away edge, for the flow of a liquid, which flows towards the lower surface region, such that the flow of the liquid is at least partially broken up by the recess.