Drain Stopper Assembly With Removable Strainer Cartridge
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Solution Overview
Problem
Conventional bathroom sink stopper assemblies often misalign, leading to improper sealing, clogging issues due to hair and foreign objects, and difficulty in accessing and replacing the strainer for cleaning.
Innovation Solution
A stopper assembly with a removable strainer cartridge that allows for efficient, sanitary replacement of the strainer element, featuring a detachable design where the strainer can be released without contact, and a supplemental strainer device downstream to reduce clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional strainer assembly is installed in the drain system, then hair and foreign objects can be strained, but the strainer becomes difficult to access for cleaning and replacement
Solution Approach 1:
The strainer assembly is divided into separate components: a strainer cartridge that can be detached from the stopper body, and a strainer element that can be removed from the cartridge. This segmentation allows the strainer element to be easily replaced without disassembling the entire drain system, resolving the contradiction between ease of replacement and structural complexity.
Solution Approach 2:
The strainer element is extracted as a separate, removable component from the strainer cartridge. The cartridge itself can be detached from the stopper body, and the strainer element can be taken out from the cartridge for cleaning or replacement. This extraction principle enables easy access to the strainer without complex disassembly procedures.
2Ease of repair
If the stopper assembly is designed with a removable strainer cartridge, then maintenance becomes easier, but the device structure becomes more complex
Solution Approach 1:
The stopper assembly is segmented into functional modules: stopper body, strainer cartridge, and strainer element. Each module can be independently maintained or replaced. The strainer cartridge detaches from the stopper body via a release mechanism, enabling easy maintenance of the strainer component without affecting the stopper body structure.
Solution Approach 2:
The connection between the strainer cartridge and stopper body is designed to be dynamic rather than fixed. A release mechanism with movable components (such as spring-loaded latches or snap-fit features) allows the cartridge to be easily detached and reattached, providing ease of maintenance while maintaining a relatively simple overall structure.
3Reliability
If a supplemental strainer device is added downstream, then clogging is reduced, but the device complexity increases
Solution Approach 1:
The drain system incorporates multiple straining stages through segmented strainer devices positioned at different locations. The first strainer (in the stopper assembly) and the second strainer (downstream in the drain pipe) work together in series to provide progressive filtration, reducing clogs while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The downstream supplemental strainer acts as an intermediary component that catches particles that pass through the first strainer. This secondary strainer provides an additional layer of protection against clogs without requiring complete redesign of the entire drain system, adding reliability with minimal increase in overall complexity.
Data Source
AI summary
A stopper assembly for a drain system of a fluid basin is provided. The stopper head assembly includes a stopper head having a seal to sealingly engage the drain system of the fluid basin when the stopper assembly is moved from a drain position to a plug position and a strainer to strain fluid passing through the drain system when the stopper head is in a drain position. The stopper head assembly further includes a stopper body operably coupleable to a control element to move the assembly between the drain position and the plug position. The stopper body may be detachably coupled to the stopper head and/or the strainer to enable selective removal of the stopper head and the strainer from the stopper body when the stopper body is installed for use and coupled to the control element. Related methods, systems and components are also provided.