Threaded Sink and Bath Drain Strainer for Flow Regulation
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Solution Overview
Problem
Existing drain strainers fail to effectively prevent small debris from entering plumbing systems while also controlling water flow, leading to clogs and potential overflow, and conventional solutions like mesh screens or pop-up stoppers are either fragile or lack flow regulation.
Innovation Solution
A two-part drain strainer system with a hollow body and cap featuring internal and external threads, allowing for secure fitting and adjustable water flow control, incorporating peripheral and central apertures to capture debris and regulate water entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mesh screens or strainers are placed over the drain opening to prevent small objects from entering the plumbing system, then debris prevention is improved, but water flow control capability is lost
Solution Approach 1:
The patent combines the debris prevention function of a strainer with the water flow control function of a pop-up stopper into a single integrated device. The strainer assembly includes both a mesh screen for debris filtration and a movable stopper mechanism that can block or open the drain opening, allowing the device to perform multiple functions simultaneously.
Solution Approach 2:
The strainer assembly is designed to serve multiple purposes: it acts as a debris filter, a water flow control mechanism, and a drain blockage prevention device. The movable stopper can be positioned to either allow water flow or prevent it, while the mesh screen continuously filters debris from the water stream.
2Adaptability or versatility
If conventional pop-up stoppers are used to control water flow, then water flow control is improved, but debris prevention capability is lost
Solution Approach 1:
The patent merges the water flow control stopper mechanism with a mesh screen strainer into a single integrated assembly. The stopper remains functional for controlling water flow while the attached mesh screen provides continuous debris filtration, eliminating the need for separate devices.
Solution Approach 2:
The pop-up stopper is enhanced with debris prevention capabilities by integrating a mesh screen into the same assembly. This allows the device to simultaneously control water flow and filter debris, making it a universal solution that addresses both functions without requiring additional components.
3Ease of operation
If simple drain plugs are used, then ease of operation is improved, but reliability deteriorates due to breaking or clogging
Solution Approach 1:
The drain plug is constructed as a composite assembly combining a durable outer housing with an integrated mesh screen strainer. This composite structure provides both the simplicity of a single-unit device and the reliability of multiple protective functions, preventing both breaking and clogging through the reinforced design.
Solution Approach 2:
The drain plug is segmented into functional components: a durable housing structure and an integrated mesh screen. This segmentation allows each component to perform its specific function optimally while maintaining overall simplicity of operation as a single assembled unit that resists breaking and clogging.
Data Source
AI summary
A drain strainer includes a drain piece having a hollow body and an internal female thread, and a cap having an external male thread for mating with the internal female thread.