Rotating Drain Closure Assembly for Leak-Resistant Flow Control
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Solution Overview
Problem
Existing drain closure devices for bathtubs and sinks are prone to wear and damage, leading to leakage and the need for frequent repair or replacement, with mechanical components like pins and springs being easily damaged.
Innovation Solution
A drain closure device featuring a cap and insert that rotate to align apertures and slots, allowing fluid flow when aligned and preventing it when not, with a sealing member to prevent leakage, and designed for easy installation and replacement, accommodating various shapes and sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mechanical components (pins, springs) are used in drain closure devices, then the device can achieve reliable fluid control, but the components are prone to wear and damage requiring frequent repair or replacement
Solution Approach 1:
The drain closure device is divided into separate functional components: a strainer body that remains fixed in the drain, and a removable closure assembly (cap with insert) that can be detached for replacement. This segmentation allows the durable strainer body to remain in place while only the wear-prone closure components need periodic replacement, resolving the contradiction between maintaining reliable fluid control and extending overall device service life.
Solution Approach 2:
The cap and insert are designed as inexpensive, easily replaceable components that can be discarded when worn or damaged. Rather than replacing the entire drain closure device, users can simply remove and replace these consumable parts, thereby extending the service life of the overall system while maintaining reliable operation.
2Ease of operation
If multiple mechanical components are used to maintain plug position, then fluid control function is achieved, but the complexity of the device increases and components are easily damaged
Solution Approach 1:
The closure assembly transitions from static mechanical positioning (pins and springs) to a dynamic rotation-based mechanism. The insert rotates within the cap to align or misalign apertures, creating a simple yet effective way to control fluid flow without requiring multiple complex mechanical components to maintain position.
Solution Approach 2:
The invention extracts the essential fluid control function from complex mechanical positioning systems and implements it through a simpler rotational alignment mechanism. By removing unnecessary mechanical components and retaining only the critical rotation and sealing functions, the device achieves ease of operation with reduced complexity.
3Object-affected harmful factors
If a seal ring is used to prevent leakage, then fluid containment is improved, but the seal ring may wear and fail over time
Solution Approach 1:
The sealing components are integrated into the removable closure assembly rather than being fixed to the strainer body. When the cap and insert are removed for replacement, the sealing members are discarded with them. This approach allows for periodic renewal of sealing components, ensuring continued leak prevention while the strainer body remains in service.
4Reliability
If the entire drain closure device is replaced when components wear, then reliable operation is restored, but installation complexity and time increase
Solution Approach 1:
The drain closure system is segmented into a permanent strainer body and a removable closure assembly. This segmentation enables selective replacement of only the worn closure components (cap and insert) while leaving the strainer body in place, dramatically reducing replacement time and installation complexity compared to replacing the entire device.
Solution Approach 2:
The closure assembly is pre-assembled as a complete unit (cap with insert and sealing members) that can be quickly installed or replaced as a single assembly. This preliminary preparation of the closure unit allows for rapid replacement without complex on-site assembly, reducing the time and complexity of restoration after component wear.
Data Source
AI summary
A drain closure device that allows a user to selectively open or close the drain closure device to permit or restrict the flow of water therethrough. The drain closure is comprised of a strainer body which houses an insert. The insert has a plurality of openings. A cap is mounted to the insert that has a plurality of openings, which upon rotation of the cap relative to the insert selectively align with the openings on the insert to allow fluid flow from a tub or sink.