Dirt retention device for a drain of a sanitary basin
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Solution Overview
Problem
Existing sink drain debris retention devices often splash water towards the user when a liquid jet hits the sieve surface at an unfavorable angle, leading to inefficiencies in liquid direction and user safety concerns.
Innovation Solution
A debris retention device with a sieve surface designed from higher to lower area and a handle device featuring a flow interruption mechanism, such as a tear-off edge, to redirect liquid flow and prevent splashing, while maintaining visual appeal and ease of cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle device is arranged in the center of the sieve surface with rounded transitions for good grip, then ease of operation is improved, but liquid splashing towards the user occurs when liquid jet hits at unfavorable angles
Solution Approach 1:
The handle device is segmented into a base body and a cap that can be detachably connected. The base body contains the flow interruption device (tear-off edge) while the cap provides the gripping surface. This segmentation allows the flow interruption function and the ergonomic grip function to be separated and optimized independently, resolving the contradiction between ease of operation and liquid splashing prevention.
Solution Approach 2:
The base body acts as an intermediary element between the sieve surface and the cap. It introduces the flow interruption device (tear-off edge) that modifies the liquid flow path before it reaches the handle area, thereby preventing splashing while maintaining the ergonomic grip provided by the cap.
2Productivity
If the liquid flows quickly towards the handle device from the sieve surface, then drainage efficiency is improved, but liquid is directed upwards towards the user causing splashing
Solution Approach 1:
The flow interruption device (tear-off edge) on the base body performs preliminary anti-action by interrupting and redirecting the liquid flow before it can reach the handle device and splash towards the user. The tear-off edge creates a flow separation that prevents the liquid from following the upward path towards the user while maintaining drainage efficiency through the sieve surface.
3Device complexity
If the handle device is made as a single integrated piece with the sieve surface, then device complexity is reduced, but flow interruption capability is limited
Solution Approach 1:
The handle device is segmented into a base body and a cap that can be detachably connected. This segmentation allows the base body to incorporate the flow interruption device (tear-off edge) while the cap provides ergonomic gripping. The detachable connection maintains relatively low device complexity while enabling effective flow interruption functionality.
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 liquid splashing towards the user, ensuring reliable liquid redirection and enhancing user safety and aesthetics.
Implementation Method 1
the handle device has a flow interruption device, in particular a tear-off edge, for the flow of a liquid which flows in the direction of the deeper surface area
Data Source
AI summary
The invention relates to a dirt retention device (1) for a drain of a sanitary basin, in particular a sink or the like, comprising a sieve surface (4) which is designed extending from a higher (4e) to a lower surface area (4d,4f), and a handle device (2,3) which is arranged on the sieve surface in the area of the lower surface area, wherein the handle device has a flow interruption device, in particular a breaking edge (K), for the flow (F1,F2) of a liquid which flows in the direction of the lower surface area, such that the flow of the liquid in the lower area is at least partially interrupted by the breaking edge.