Split-Type Adjustable Wash Basin Drain for Uneven Surface Sealing
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Solution Overview
Problem
Conventional wash basin drains face issues with uneven bottom surfaces leading to poor seals and water leakage, require large and heavy tools for installation, and have high maintenance costs due to non-interchangeable parts for filter element structures.
Innovation Solution
An adjustable wash basin drain with a split-type flange connector and interchangeable stoppers, allowing for micro-adjustment of the contact surfaces and eliminating the need for large tools, enabling better sealing and reducing replacement costs through modular design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional drain with a locking nut is installed on an uneven wash basin bottom surface, then the drain can be secured to the wash basin, but the uneven surface prevents micro-adjustment and results in poor seal and water leakage
Solution Approach 1:
The drain flange is designed as a split-type structure with adjustable connecting pieces that allow dynamic adjustment of the contact surface angle. The connecting pieces can be rotated and repositioned to different angles (e.g., 0°, 15°, 30°) to match the uneven bottom surface of the wash basin, enabling micro-adjustment to achieve proper sealing even when the bottom surface flatness is poor.
2Strength
If a large-diameter locking nut is used under the drain main body, then the drain can be fastened securely, but large-size pliers are required for installation which are inconvenient to carry and operate
Solution Approach 1:
The fastening function is segmented into two parts: a small-diameter locking nut for secure fastening and a separate adjustable drain flange structure for positioning. The locking nut diameter is reduced to allow use of small, convenient tools, while the split-type flange with connecting pieces provides the necessary adjustment capability and structural integrity.
3Adaptability or versatility
If a filter element structure is added to the drain, then filtration function is improved, but the stopper becomes non-interchangeable with drains without filter elements, increasing maintenance and replacement costs
Solution Approach 1:
The drain flange is designed as a universal split-type structure with standardized connecting pieces that can accommodate different stopper types (with or without filter elements). The connecting pieces serve multiple functions: positioning the drain, enabling adjustment for uneven surfaces, and providing standardized attachment points. This universal design allows the same drain flange assembly to work with various stopper configurations, maintaining interchangeability and reducing maintenance costs.
Data Source
AI summary
The embodiments disclosed herein provide an adjustable wash basin drain wherein a fitting angle of the contact surfaces between the wash basin and the drain can be adjusted to achieve a better seal between the wash basin and the drain. The wash basin drain may include a split-type drain flange that includes an upper connector seat, a lower connector seat, and a flange connector. The upper connector seat is configured to snap fit to an upper end of a water discharge hole of the wash basin. The lower connector seat is connected to a water discharge pipe, and may be disposed beyond a bottom end of the wash basin. The flange connector connects the upper connector seat with the lower connector seat.